Hitachi Astemo, Ltd.

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        Canada 23
Date
New (last 4 weeks) 29
2026 April (MTD) 10
2026 March 20
2026 February 12
2026 January 14
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IPC Class
G08G 1/16 - Anti-collision systems 331
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear 324
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating 220
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive 164
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details 157
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NICE Class
12 - Land, air and water vehicles; parts of land vehicles 76
07 - Machines and machine tools 41
09 - Scientific and electric apparatus and instruments 27
11 - Environmental control apparatus 6
17 - Rubber and plastic; packing and insulating materials 5
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Status
Pending 538
Registered / In Force 5,854
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1.

IMAGE PROCESSING DEVICE

      
Application Number 19113087
Status Pending
Filing Date 2022-12-05
First Publication Date 2026-04-09
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Horinaga, Maho
  • Tada, Naoya
  • Mitoma, Hiroto

Abstract

An image processing device includes a computation device to which an image obtained by using an imaging device to capture the area in front of a vehicle is inputted, wherein the computation device calculates, for each of a plurality of regions included in the image, the parallax of a subject image included in the region, and determines whether or not a tunnel exit exists in a specific region among the plurality of regions on the basis of the position of a region, among the plurality of regions, for which the parallax of the subject image cannot be calculated and a parallax calculated in another region located near the region for which the parallax of the subject image cannot be calculated.

IPC Classes  ?

  • G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads

2.

ON-VEHICLE ELECTRIC POWER CONTROL SYSTEM, CONTROL DEVICE, AND AGGREGATED CONTROL DEVICE

      
Application Number 19112719
Status Pending
Filing Date 2022-10-14
First Publication Date 2026-04-09
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Jyumonji, Kentarou

Abstract

The influence of a power supply voltage drop due to a wire diameter reduction of a wire harness is suppressed, and the operation guarantee voltages of components 501 to 503 connected to the wire harness are appropriately secured. An on-vehicle electric power control system 1 includes a low-voltage battery 50, a first control device 100, and components 501 to 503. The first control device 100 acquires wiring resistance values of power supply lines of a third power supply line 60, a fourth power supply line 80, and a fifth power supply line 90, acquires a current value supplied to the components 501 to 503, and calculates a voltage drop amount in the power supply line based on the acquired wiring resistance value and current value. Then, a correction value for correcting the output voltage of the DC-DC converter 30 is determined based on the calculated voltage drop amount, and a correction request indicating the determined correction value is transmitted to a second control device 200.

IPC Classes  ?

  • B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
  • H02J 1/082 -

3.

FAILURE SIGN DIAGNOSABLE DRIVE DEVICE

      
Application Number 19112733
Status Pending
Filing Date 2022-10-14
First Publication Date 2026-04-09
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Masubuchi, Takumi

Abstract

Provided is a drive device capable of diagnosing a failure sign, the drive device having functions of diagnosing the failure sign of a power device; performing load drive control by restricting operation of the power device with the failure sign or by excluding the power device; and suppressing shortening of a replacement cycle of the power device. A drive device 100 includes power devices 1a to 1f that drive a load, characteristic sensors 2a to 2f that detect characteristics of the power devices 1a to 1f, respectively, a sensing result holder 3 that holds detection results acquired by the characteristic sensors 2a to 2f in time series, control signal change units 4 and 5 that each detect a failure sign of each of the power devices 1a to 1f from the detection results in the sensing result holder 3 and output a control change signal, and a drive controller 10 that controls drive of the power devices 1a to 1f. When detecting the failure sign of each of the power devices 1a to 1f based on a control threshold to detect the failure sigh of each of the power devices 1a to 1f, the control signal change units 4 and 5 each output a control change signal 20 to the drive controller 10 to drive a load 200 using the power devices 1a to 1f excluding the power devices 1a to 1f detected.

IPC Classes  ?

  • B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems
  • B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
  • G01R 31/40 - Testing power supplies

4.

TRAVEL ASSISTANCE DEVICE, AND TRAVEL ASSISTANCE METHOD FOR TRAVEL ASSISTANCE DEVICE

      
Application Number 19112782
Status Pending
Filing Date 2023-11-21
First Publication Date 2026-04-09
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ito, Hiroaki
  • Kishimoto, Tadashi
  • Komatsu, Sakie

Abstract

A travel assistance device according to the present invention comprises: a region extraction unit (11) that extracts a specific region that includes traffic participants around a host vehicle from image information of sensor data; a risk derivation unit (15) that derives the degree of risk for safe travel of the host vehicle in relation to the traffic participants in the extracted specific region; a priority-setting unit (16) that sets the processing priority of the specific region according to the degree of risk; a processing-load-setting unit (18) that sets the processing load of information of the specific region according to the processing priority; and a recognition-processing unit (19) that performs traffic participant recognition on the basis of processing load information from the processing-load-setting unit.

IPC Classes  ?

5.

SHOCK ABSORBER

      
Application Number 19110475
Status Pending
Filing Date 2023-09-15
First Publication Date 2026-04-02
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Sankaran, Shivanand
  • Lundberg, Sean
  • Truitt, Jordan

Abstract

This shock absorber includes a first valve assembly connected to one end of a tube in an axial direction, a piston assembly dividing an inner chamber of the tube into a first chamber and a second chamber, a piston rod extending from the tube through the first chamber with the piston assembly connected to an intermediate position in the axial direction, a cup provided in the second chamber, and a second valve assembly disposed in the second chamber to be connected to the piston rod and configured to enter and exit from the cup. The cup includes a sleeve disposed in the second chamber with a gap between itself and the tube in a radial direction, and a base adapter fixed to the sleeve by press fitting and provided between the sleeve and the first valve assembly.

IPC Classes  ?

  • F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
  • B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
  • B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
  • F16F 9/22 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders, each having a single working space closed by a piston or plunger
  • F16F 9/49 - Stops limiting fluid passage, e.g. hydraulic stops

6.

SHOCK ABSORBER AND METHOD FOR ATTACHING A DAMPING FORCE ADJUSTMENT APPARATUS

      
Application Number 19110539
Status Pending
Filing Date 2023-09-05
First Publication Date 2026-04-02
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Iida, Tomohiko
  • Yamagai, Hiroshi

Abstract

The present invention provides a shock absorber and a method for attaching a damping force adjustment apparatus that allow a tubular body to be crimped with improved flexibility. The present invention lowers the rigidity of an end portion of a valve case by forming a slit (a weakened portion) on the end portion of the valve case (the second tubular body), thereby allowing the end portion of the valve case to be crimped with a further weak crimping force, i.e., bent with a further weak pressing force, thus allowing the valve case (the tubular body) to be crimped with improved flexibility.

IPC Classes  ?

  • F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
  • F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details

7.

AC Motor Control Device

      
Application Number 19110640
Status Pending
Filing Date 2023-08-25
First Publication Date 2026-04-02
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Hatsuse, Wataru
  • Ajima, Toshiyuki
  • Aoyagi, Shigehisa
  • Tsukagoshi, Takaya

Abstract

An alternating-current (AC) motor control device that is capable of suppressing current harmonic components flowing through an AC motor and reducing a loss generated in the AC motor can be achieved. The AC motor control device 10 includes a power converter 3 that performs power conversion from direct current (DC) power to AC power, and a control unit 2 that performs synchronous PWM control on the AC motor 1. The control unit 2 includes carrier wave generation units 221, 231, and 232 that generate carrier waves, and PWM pulse generation units 22 and 23 that generate PWM pulses based on the carrier waves and a voltage command value 21A. The carrier wave generation units 221, 231, and 232 each change a cycle of the carrier wave so that harmonic components in d-q orthogonal coordinates of the AC motor 1 are concentrated on a side of either a d axis or a q axis having a larger inductance, the harmonic components being included in the PWM pulse.

IPC Classes  ?

  • H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
  • B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed

8.

PHYSICAL QUANTITY DETECTION DEVICE

      
Application Number 19111645
Status Pending
Filing Date 2022-10-18
First Publication Date 2026-04-02
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Yuki, Fumio
  • Hosokawa, Takeo
  • Anraku, Kyoya
  • Soma, Atsuo

Abstract

Provided is a physical quantity detection device capable of not only measuring tire air pressure without using a sensor component other than a strain sensor, but also detecting a load and wear from a strain signal corrected using information on the tire air pressure. The physical quantity detection device according to the present invention detects air pressure of a tire at a reference level of a signal waveform of the strain sensor, and detects a load and wear of the tire from a strain signal corrected by the air pressure of the tire. The physical quantity detection device according to the present invention holds a reference value stored in a storage unit as a table, and detects each physical quantity by comparison with the reference value.

IPC Classes  ?

  • B60C 23/06 - Signalling devices actuated by deformation of the tyre
  • B60C 11/24 - Wear-indicating arrangements
  • G01G 19/10 - Weighing apparatus or methods adapted for special purposes not provided for in groups for incorporation in vehicles having fluid weight-sensitive devices
  • G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
  • G01L 17/00 - Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies

9.

VISUAL INSPECTION DEVICE AND METHOD OF GENERATING VISUAL INSPECTION DISCRIMINATOR

      
Application Number 19110553
Status Pending
Filing Date 2023-12-26
First Publication Date 2026-04-02
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Seki, Takateru
  • Onozuka, Hideaki
  • Ichinose, Masatoshi
  • Watanabe, Takashi

Abstract

Provided are a visual inspection device with an improved determination accuracy of inspection and a method of generating a visual inspection discriminator. The visual inspection device includes: a storage unit configured to store, after generation of, based on a defective product image which includes a defect and which is to be determined as a defective product in visual inspection, at least one pseudo image which is close to a determination criterion between defective products and non-defective products in the visual inspection, a boundary learning result obtained by machine learning of a boundary between non-defective products and defective products through use of a pair of the defective product image and the at least one pseudo image or a pair of two pseudo images; and an inspection unit configured to inspect a surface of an object to be inspected based on the boundary learning result.

IPC Classes  ?

  • G06T 7/00 - Image analysis
  • G01N 21/88 - Investigating the presence of flaws, defects or contamination
  • G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
  • G06V 10/74 - Image or video pattern matchingProximity measures in feature spaces

10.

ELECTRONIC CONTROL DEVICE

      
Application Number 19113095
Status Pending
Filing Date 2022-12-27
First Publication Date 2026-04-02
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ueno, Keiko
  • Kawai, Yoshio
  • Kaneko, Tatsuya
  • Aonuma, Katsuyuki

Abstract

An electronic control device includes: a circuit board including a wiring board bearing a wiring pattern including a high-speed signal line, and an electronic component mounted on a first surface of the wiring board, the electronic component being connected to the high-speed signal line; a case housing the circuit board; and a first heat conductive member in direct contact with the electronic component and with the case. The first heat conductive member is disposed in such a way as to extend from an upper surface of the electronic component to the case and to extend from the first surface of the wiring board to the case while being in contact with a part of an outer peripheral surface of the electronic component at a position at which the first heat conductive member avoids a space above the high-speed signal line.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

11.

CAMERA CALIBRATION DEVICE AND CAMERA CALIBRATION METHOD

      
Application Number 19109462
Status Pending
Filing Date 2022-12-15
First Publication Date 2026-03-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Watanabe, Atsushi

Abstract

A camera calibration device includes: a deviation amount calculation unit which calculates a deviation amount between a detection position of a calibration object, which is detected for each of regions, with a predetermined size, of an image obtained by a camera imaging the object through a refractive layer, and a calculation position of the object, which is calculated for each of the regions of an image which the camera is capable of capturing without passing through the refractive layer; an evaluation unit which evaluates the deviation amount for each of the regions; and a correction amount calculation unit which calculates, for each of the regions, a correction amount for correcting the detection position of the object to the calculation position of the object, according to an evaluation result of the deviation amount, and calibrates the camera on the basis of the correction amount of the deviation amount calculated for each of the regions.

IPC Classes  ?

  • G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
  • G06T 5/80 - Geometric correction
  • G06T 7/11 - Region-based segmentation

12.

ELECTRIC POWER CONVERTER CONTROL DEVICE AND ELECTRIC POWER CONVERTER

      
Application Number 19111249
Status Pending
Filing Date 2022-11-30
First Publication Date 2026-03-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Sekiguchi, Manabu
  • Suzuki, Takami
  • Onishi, Kohei

Abstract

An electric power converter control device, which controls an electric power converter that performs electric power conversion between a direct current power supply and a motor, the electric power converter control device including: a magnetic flux command value generator configured to obtain a magnetic flux command value based on a torque command value; a current command value generator configured to obtain a current command value for controlling the motor, based on the torque command value and the magnetic flux command value; and a current command value adjuster configured to adjust the current command value based on the torque command value, a rotation detection value indicating a rotational speed of the motor, and a direct current voltage value indicating an output voltage of the direct current power supply.

IPC Classes  ?

13.

AIR FLOW METER

      
Application Number 18703575
Status Pending
Filing Date 2021-10-26
First Publication Date 2026-03-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Shibata, Mizuki
  • Yogo, Takayuki
  • Zhang, Linlin

Abstract

This air flow rate meter comprises an enclosure having an auxiliary passage and a circuit chamber, and a flow rate detection sensor. The flow rate detection sensor has a diaphragm in which a flow rate detection unit is formed on a main surface, a recessed section formed on the reverse-surface side of the diaphragm, and a package part having a first package section and a second package section, the first package section being positioned in the auxiliary passage, and the second package section being positioned in the circuit chamber. An airflow passage linked to the recessed section is formed in the interior of the package part. The recessed section communicates with the auxiliary passage via a plurality of ventilation pathways that communicate with the auxiliary passage via the airflow passage.

IPC Classes  ?

  • G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow

14.

PLATED MEMBER AND MANUFACTURING METHOD THEREOF

      
Application Number 19108760
Status Pending
Filing Date 2023-09-05
First Publication Date 2026-03-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Omata, Yasuhisa
  • Hoshino, Akihito
  • Nakano, Hiroshi

Abstract

Provided is a plated member having, on an outer surface, a plated film mainly composed of chromium formed using a trivalent chromium bath containing at least chromium, carbon, and oxygen, in which the plated film contains 60 at % or more of chromium and 1 at % to 30 at % of carbon and has an indentation hardness of 11.1 GPa or more on the outer surface, and a degree of crystallinity calculated from a peak integrated intensity ratio of a measured value of X-ray diffraction measurement and the following expression (1) is 5% or more.

IPC Classes  ?

  • C25D 3/06 - ElectroplatingBaths therefor from solutions of chromium from solutions of trivalent chromium
  • B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic

15.

LIGHT DISTRIBUTION CONTROL SYSTEM AND LIGHT DISTRIBUTION CONTROL METHOD

      
Application Number 19109921
Status Pending
Filing Date 2022-12-16
First Publication Date 2026-03-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Otsuka, Hiromichi
  • Doi, Koji

Abstract

Vehicle-external recognition is performed, and light distribution control over headlights mounted on a vehicle is performed based on the vehicle-external recognition. A configuration includes an external sensor that acquires information about an object around the vehicle, and a ground speed acquisition unit that acquires a ground speed of the object based on an output from the external sensor. An emission range of the headlights is variably set based on the ground speed acquired by the ground speed acquisition unit.

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • H05B 47/125 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using cameras

16.

INFORMATION PROCESSING DEVICE AND SYSTEM, AND IN-VEHICLE ELECTRONIC DEVICE

      
Application Number 19111129
Status Pending
Filing Date 2022-12-12
First Publication Date 2026-03-26
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Mikami, Shugo
  • Fujii, Yasuhiro
  • Nomura, Teruaki
  • Kataoka, Mikio

Abstract

An information processing device according to the present invention includes: a storage unit that stores a unique number that identifies a vehicle or an in-vehicle electronic device; a vehicle selection unit that selects a vehicle to which update software is applied; a key generation unit that generates a secret key using, as a public key, at least one of the unique number of the selected vehicle or the in-vehicle electronic device mounted on the vehicle; an encryption unit that generates encrypted update software by encrypting the update software using the secret key; and a distribution unit that distributes the encrypted update software to the vehicle.

IPC Classes  ?

  • H04L 9/08 - Key distribution
  • G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
  • H04L 9/30 - Public key, i.e. encryption algorithm being computationally infeasible to invert and users' encryption keys not requiring secrecy

17.

Electronic Control Device, Vehicle Control System, and Task Control Method

      
Application Number 19111835
Status Pending
Filing Date 2023-04-04
First Publication Date 2026-03-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Mizoguchi, Masashi
  • Ebina, Tomohito
  • Maeda, Koji
  • Ishigooka, Tasuku
  • Yoshimura, Kentaro

Abstract

Provided is an electronic control device, in which a timeslot allocation unit receives an input of data flow request information and timeslot request information, the data flow request information including information on a task for generating data to be input to the new task and information on how many periods before a timeslot for activating the new task to use the data generated by the task and the timeslot request information including information on a number of timeslots necessary for executing the new task, searches for an empty timeslot in which the new task is executed based on the timeslot allocation information, the data flow request information, and the timeslot request information, and updates the timeslot allocation information so as to allocate the new task to the searched empty timeslot.

IPC Classes  ?

  • G06F 9/48 - Program initiatingProgram switching, e.g. by interrupt

18.

Motor Control Apparatus and Motor Control Method

      
Application Number 19111906
Status Pending
Filing Date 2023-12-04
First Publication Date 2026-03-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Saotome, Hiroto
  • Hano, Masaki
  • Jitsuishi, Makoto

Abstract

In one mode, a motor control apparatus and a motor control method according to the present invention acquire a detected signal of a current sensor that detects a current flowing through the energized phases of a three-phase brushless motor, and execute 120-degree square-wave drive on the three-phase brushless motor based on a control current value based on the detected signal. The motor control apparatus and motor control method calculate the control current value based on a current value detected by the current sensor before switching of the energized phases in the 120-degree square-wave drive and based on a current value detected by the current sensor after the switching. This configuration enables reduction of oscillation of a motor current.

IPC Classes  ?

  • H02P 23/28 - Controlling the motor by varying the switching frequency of switches connected to a DC supply and the motor phases
  • H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation

19.

SOFTWARE VERIFICATION SYSTEM, AND VEHICLE CONTROL DEVICE

      
Application Number 19112340
Status Pending
Filing Date 2023-09-19
First Publication Date 2026-03-26
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Omatsu, Hiroki
  • Otsuka, Satoshi
  • Yoshimura, Kentaro
  • Mizoguchi, Masashi
  • Maeda, Koji
  • Ikeda, Masakazu
  • Ito, Hiroaki

Abstract

A software verification system and the like that can facilitate improvement of software using sensor data of a vehicle as an input are provided. The software verification system detects (performance determining unit 118) a degradation of a new version of control software using, first information that is an output of a current version of control software used for control of a vehicle using, as an input, sensor data from a sensor mounted on the vehicle, second information that is an output of the new version of control software not used for the control of the vehicle using, as an input, the sensor data, and third information relating to the control of the vehicle other than the first and second information; and verifies the new version of control software by using the sensor data when the degradation is detected.

IPC Classes  ?

  • G06F 11/3604 - Analysis of software for verifying properties of programs

20.

Vehicle Control Device, Vehicle Control Method, and Vehicle Control System

      
Application Number 19110719
Status Pending
Filing Date 2023-12-25
First Publication Date 2026-03-19
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Minakuchi, Yuichiro

Abstract

According to an aspect of the present invention, a vehicle control device, a vehicle control method, and a vehicle control system obtain a first angle between the orientation of a vehicle and the travel direction of the vehicle, obtain an avoidance course for avoiding an object located ahead of the vehicle, perform first angle control for bringing the first angle closer to a predetermined reference angle when causing the vehicle to follow the avoidance course, and selects either the steering actuator alone or a combination of the steering actuator and at least one of the braking and driving actuators as a control target in the first angle control based on a physical quantity resulting from tire forces of the vehicle. This makes it possible to improve accuracy of tracking the avoidance course.

IPC Classes  ?

  • B60W 30/09 - Taking automatic action to avoid collision, e.g. braking and steering
  • B60W 10/04 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
  • B60W 10/18 - Conjoint control of vehicle sub-units of different type or different function including control of braking systems
  • B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems

21.

OWN POSITION ESTIMATION DEVICE

      
Application Number 19106900
Status Pending
Filing Date 2022-09-05
First Publication Date 2026-03-19
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Yamada, Takahiro

Abstract

An own position estimation device includes: a position information acquisition unit in a vehicle; a first memory in which encrypted map information is stored; a microcomputer that reads the map information, performs calculation based on information obtained from the position information acquisition unit, and outputs driving assistance information; and a second memory that retains the map information and current position information transferred by the microcomputer. The position information acquisition unit, the first memory, and the second memory are connected to the microcomputer through a communication line, and the second memory is a non-volatile memory of the vehicle, and stores own position information, encrypted peripheral map information, and decrypted peripheral map information during an operation of the vehicle.

IPC Classes  ?

  • G01C 21/28 - NavigationNavigational instruments not provided for in groups specially adapted for navigation in a road network with correlation of data from several navigational instruments
  • G01S 19/49 - Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system whereby the further system is an inertial position system, e.g. loosely-coupled

22.

Suspension System

      
Application Number 19108862
Status Pending
Filing Date 2023-07-03
First Publication Date 2026-03-19
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Akai, Akihito
  • Hirao, Ryusuke
  • Matsuura, Makoto
  • Kakita, Shota

Abstract

A suspension system performs calculations using machine learning by making sensor information and suspension state information associate with each other. The suspension system includes: a weight parameter storage unit; a vehicle state estimation unit; a first vehicle behavior calculation unit that calculates a first physical value based on the estimation result; a second vehicle behavior calculation unit that calculates a second physical value based on the sensor information; an estimation accuracy verification unit that outputs estimation accuracy of the state of the suspension by comparing the first physical value and the second physical value to each other; and a traveling data control unit that instructs learning of weight parameters based on an output result of the estimation accuracy.

IPC Classes  ?

  • B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method

23.

ELECTRIC POWER CONVERTER CONTROL DEVICE AND ELECTRIC POWER CONVERSION DEVICE

      
Application Number 19110002
Status Pending
Filing Date 2022-10-18
First Publication Date 2026-03-19
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Suzuki, Takami

Abstract

An electric power converter control device controls an electric power converter that performs electric power conversion between a direct current electric power supply and a motor, the electric power converter control device including: a magnetic flux command value generator configured to obtain a magnetic flux command value based on a torque command value and a rotation detection value indicating the rotational speed of the motor; a direct current voltage value generator configured to obtain a direct current voltage value indicating an output voltage of the direct current electric power supply based on at least a modulation rate coefficient targeted by the electric power converter and the magnetic flux command value; and a current command value generator configured to obtain a current command value for controlling the motor based on the torque command value, the rotation detection value, and the direct current voltage value.

IPC Classes  ?

  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
  • H02M 7/5395 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
  • H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation

24.

SENSOR ABNORMALITY DETECTION DEVICE

      
Application Number 19107335
Status Pending
Filing Date 2023-11-29
First Publication Date 2026-03-12
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Hirao, Ryusuke
  • Yamahata, Masatoshi
  • Kato, Shu

Abstract

A CAN input unit (traveling speed input unit) to which a traveling speed of a vehicle is to be input and sprung acceleration input units (a first sensor input unit and a second sensor input unit) to which signal fluctuation ranges (vibration levels) of sprung acceleration sensors are to be input are included. An ECU includes a first determination unit which determines whether a traveling speed provided by the CAN input unit is equal to or more than a first threshold value, and a signal fluctuation range of one of a sprung acceleration sensor value of the sprung acceleration input unit serving as the first sensor input unit and a sprung acceleration sensor value of the sprung acceleration input unit serving as the second sensor input unit is smaller than a first fluctuation range and smaller than a signal fluctuation range of another of the first and second sensor input values.

IPC Classes  ?

  • B60G 17/0185 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection

25.

ELECTRIC VEHICLE CHARGING MANAGEMENT DEVICE, ELECTRIC VEHICLE CHARGING MANAGEMENT METHOD, AND PROGRAM

      
Application Number 19107456
Status Pending
Filing Date 2022-08-30
First Publication Date 2026-03-12
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Hosoda, Junko
  • Nagahara, Satoshi
  • Dong, Hang
  • Kurita, Norio
  • He, Qian

Abstract

To suppress concentration of charging for a plurality of electric vehicles (EV) and achieve leveling. An electric vehicle charging management device 10 that manages charging for a plurality of EVs 40, the electric vehicle charging management device including: a charging time zone information creation unit 121 that creates charging time zone information 1007 indicating a charging schedule for each of the plurality of EVs 40 by using delivery course information 1001 and vehicle information 1003; a power consumption amount calculation unit 122 that calculates time zone-based power consumption amount information 1008 indicating a power consumption amount including an execution charging amount in each of the plurality of time zones; and a charging time zone information change unit 123 that changes the charging time zone information 1007 by changing charging for a changing target electric EV in a maximum time zone that is a time zone having the largest power consumption amount among the plurality of time zones.

IPC Classes  ?

  • B60L 53/67 - Controlling two or more charging stations
  • B60L 53/68 - Off-site monitoring or control, e.g. remote control

26.

Rotating Electric Machine

      
Application Number 19108466
Status Pending
Filing Date 2022-09-08
First Publication Date 2026-03-12
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Goto, Hideaki
  • Ogane, Yuya
  • Toya, Akihito

Abstract

A rotating electric machine includes a rotor including a rotor core configured by laminating a plurality of electromagnetic steel plates and a shaft that supports the rotor core, a stator that faces the rotor via an air gap that is a predetermined space, on a radially outer side of the rotor, and a housing that houses the rotor and the stator, in which the housing forms an air flow passage between the rotor and the stator, the shaft includes a shaft flow passage that communicates with the air flow passage, and the rotor includes a pump that is coupled to the shaft and is synchronized with rotation of the shaft and a radial direction flow passage that communicates the shaft flow passage with the air gap.

IPC Classes  ?

  • H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium

27.

BRAKE CONTROL APPARATUS

      
Application Number 19107374
Status Pending
Filing Date 2023-08-16
First Publication Date 2026-03-12
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Nakazawa, Chiharu
  • Yamasaki, Hiromasa
  • Oosawa, Toshiya

Abstract

The present invention provides a brake control apparatus capable of both curbing cost and minimizing a size increase at the same time when redundancy is implemented for only a required system. A brake control apparatus includes an electromagnetic valve device including a first coil to which a first terminal and a second terminal are connected, and a second coil to which a third terminal and a fourth terminal are connected, in parallel with each other, a housing where the electromagnetic valve device is disposed, and a one control board disposed offset from one end surface of the housing in a direction of an axis around which the first coil is wound. All of the terminals are connected to the one control board.

IPC Classes  ?

  • B60T 7/04 - Brake-action initiating means for personal initiation foot-actuated
  • B60T 8/36 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
  • B60T 13/14 - Pressure supply arrangements using accumulators or reservoirs
  • B60T 13/66 - Electrical control in fluid-pressure brake systems

28.

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

      
Application Number 19107414
Status Pending
Filing Date 2022-10-03
First Publication Date 2026-03-12
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Moizumi, Hiroki
  • Doi, Koji
  • Mitoma, Hiroto

Abstract

An image processing device includes: a distance calculation unit that calculates a distance to a detection target searched from an acquired image; a speed calculation unit that calculates a speed of the detection target; and a filter processing unit that performs a filter process on the calculated distance and speed. Here, the filter processing unit performs a plurality of filter processes for a predetermined period of time and then selects one of the plurality of filter processes.

IPC Classes  ?

  • G06T 7/20 - Analysis of motion
  • G06T 7/70 - Determining position or orientation of objects or cameras

29.

PLATED MEMBER AND MANUFACTURING METHOD THEREOF

      
Application Number 19108758
Status Pending
Filing Date 2023-09-06
First Publication Date 2026-03-12
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Hoshino, Akihito
  • Omata, Yasuhisa
  • Nakano, Hiroshi

Abstract

The present plated member includes, on an outer surface, a plated film mainly composed of chromium deposited from a trivalent chromium bath containing at least chromium, carbon, and oxygen, in which the plated film contains 60 to 80 at % of chromium and 16.5 to 30 at % of carbon and has an indentation hardness of 7 GPa or more on the outer surface, and a degree of crystallinity calculated from a peak integrated intensity ratio of a measured value of X-ray diffraction measurement and the following expression (1) is 4% or less.

IPC Classes  ?

  • C25D 3/06 - ElectroplatingBaths therefor from solutions of chromium from solutions of trivalent chromium
  • F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details

30.

SOLENOID, DAMPING FORCE ADJUSTMENT MECHANISM, AND DAMPING FORCE ADJUSTABLE SHOCK ABSORBER

      
Application Number 19377646
Status Pending
Filing Date 2025-11-03
First Publication Date 2026-03-05
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Shimazaki, Miho
  • Muzvidziwa, Milton
  • Yamaka, Koichi

Abstract

A solenoid including a molded coil, an anchor, and an armature. In the anchor, an outer peripheral convex portion and an inner peripheral convex portion are formed. When no current is being applied, axial distance between the outer peripheral convex portion of the anchor and an outer peripheral portion of the armature which is radially closest to the outer peripheral convex portion is smaller than axial distance between the inner peripheral convex portion of the anchor and an inner peripheral portion of the armature which is radially closest to the inner peripheral convex portion. In other words, timing at which the outer peripheral convex portion of the anchor and the outer peripheral portion of the armature face each other in a radial direction is shifted from timing at which the inner peripheral convex portion of the anchor and the inner peripheral portion of the armature face each other in the radial direction.

IPC Classes  ?

  • H01F 7/16 - Rectilinearly-movable armatures
  • B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements

31.

ELECTRIC ACTUATOR AND ELECTRIC PARKING BRAKE DEVICE

      
Application Number 19103406
Status Pending
Filing Date 2023-07-13
First Publication Date 2026-02-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Usui, Koji

Abstract

Provided is an electric actuator which has fewer movable portions of a motion conversion mechanism so that slapping sound less liable to occur at the time of operation of an electric drive unit, and hence has quietness. An electric actuator includes: an electric driving source configured to generate a rotational motion as a driving force; and a motion conversion mechanism configured to convert the rotational motion to a rectilinear motion. Provided is an electric actuator which has fewer movable portions of a motion conversion mechanism so that slapping sound less liable to occur at the time of operation of an electric drive unit, and hence has quietness. An electric actuator includes: an electric driving source configured to generate a rotational motion as a driving force; and a motion conversion mechanism configured to convert the rotational motion to a rectilinear motion. The motion conversion mechanism includes: a first member configured to be blocked to execute a rotational motion and a rectilinear motion; and a second member configured to engage with this first member to relatively rotate with respect to this first member, to thereby generate a rectilinear motion. This second member is configured to be rotationally driven by the driving force of the electric driving source.

IPC Classes  ?

  • B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
  • F16D 65/22 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart
  • F16D 121/24 - Electric or magnetic using motors
  • F16D 125/40 - Screw-and-nut
  • F16H 25/20 - Screw mechanisms
  • F16H 25/24 - Elements essential to such mechanisms, e.g. screws, nuts

32.

Fuel Pump

      
Application Number 19104583
Status Pending
Filing Date 2022-10-18
First Publication Date 2026-02-26
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Usui, Satoshi
  • Nemoto, Masashi
  • Ogura, Kiyotaka

Abstract

A fuel pump includes an electromagnetic intake valve including a coil winding portion formed by winding an electromagnetic coil around a bobbin and a magnetic circuit configuration portion constituting a magnetic circuit when a current flows through the electromagnetic coil. The magnetic circuit configuration portion includes a yoke disposed so as to surround the coil winding portion, and a predetermined part facing, across a gap, the coil winding portion in a radial direction of the electromagnetic intake valve. The dimension of the gap is set such that the coil winding portion and the predetermined part come into contact with each other first when an impact force directed from an outer side to an inner side in the radial direction of the electromagnetic intake valve is applied to the yoke or the coil winding portion.

IPC Classes  ?

  • F02M 59/46 - Valves
  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

33.

INFORMATION PROCESSING DEVICE OF UPDATE SYSTEM

      
Application Number 19105439
Status Pending
Filing Date 2022-12-13
First Publication Date 2026-02-26
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ariyasu, Nobuhiro
  • Morita, Nobuyoshi
  • Fujii, Yasuhiro
  • Kataoka, Mikio

Abstract

An object is to efficiently update some software modules provided in an in-vehicle device by SOTA while guaranteeing an operation of the software modules after the update. An information processing device 100 of an update system 1 is a device for updating an update target software module which is a part of a plurality of software modules provided in an in-vehicle device 110. The information processing device 100 includes a determination unit 101 that determines an update range of a software module in the plurality of software modules. The determination unit 101 determines the update range on the basis of whether or not the combination of the update target software module and other software modules after the update of the update target software module is a combination in which the operation of each software module has been verified.

IPC Classes  ?

34.

VARIABLE DISPLACEMENT OIL PUMP AND METHOD FOR PRODUCING VARIABLE DISPLACEMENT OIL PUMP

      
Application Number 19105515
Status Pending
Filing Date 2023-06-06
First Publication Date 2026-02-26
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Matsumura, Ryo
  • Naganuma, Atsushi
  • Motohashi, Ryoichi

Abstract

A variable displacement oil pump according to the present invention has a protrusion (46) that is partially formed on a spring contact surface (451) of an arm part (45) of a cam ring (4) so as to overlap with part of the outer circumference of a coil spring (SP). This protrusion (46) restricts tilting of the coil spring (SP) and makes it possible to suppress positional deviation of the coil spring (SP). Furthermore, because the protrusion (46) is provided partially on the spring contact surface (451) of the arm part (45) of the cam ring 4, the coil spring (SP) need only be pushed inward of the protrusion (46) when installing the coil spring (SP), thus making it possible to ensure ease of installation of the coil spring (SP).

IPC Classes  ?

  • F04C 14/22 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members

35.

Control System, Control Method, and Control Program

      
Application Number 19103608
Status Pending
Filing Date 2023-04-27
First Publication Date 2026-02-19
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kato, Yuma
  • Ishigooka, Tasuku
  • Fuse, Yasuhiro
  • Kondo, Akihiro
  • Atarashi, Yoshitaka

Abstract

Provided are a control system, a control method, and a control program capable of performing efficient travel arbitration while ensuring safety even in a human-mixed environment in which manned vehicles or humans are mixed. In a control system 0 including a moving body (in-vehicle device 1, moving body 3) and a control device 2, the control device 2 includes: a blockage candidate calculation unit 21 that, in a specific moving body (in-vehicle device 1), calculates a blockage area 202 on the basis of a position, a travel plan, and a speed of the specific moving body, and calculates a warning area 203 on the basis of the blockage area 202, a braking time of the specific moving body, and peripheral information; a safety instruction generation unit 22 that selects a safety action instruction on the basis of a type of an area calculated by the blockage candidate calculation unit 21 and a type of an intruding moving body (moving body 3) intruding into the area; and a safety notification unit 23 that notifies the specific moving body of the safety action instruction, and the specific moving body performs an action on the basis of the safety action instruction.

IPC Classes  ?

  • G08G 1/0967 - Systems involving transmission of highway information, e.g. weather, speed limits

36.

ELECTRONIC CONTROL DEVICE

      
Application Number 19102725
Status Pending
Filing Date 2023-06-06
First Publication Date 2026-02-19
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Yoshitake, Yuichiro
  • Hattori, Yukio
  • Fujimoto, Masao
  • Sakashita, Tomio
  • Motoda, Haruaki

Abstract

In an electronic control device (E1) according to the present invention, in one aspect thereof, for example, noise filter capacitors (53m) (53s) and smoothing capacitors (54m) (54s) that are capacitors occupying a relatively large mounting area are disposed not on a circuit board (30) but rather on a second side surface (412) of a connector base (41). With this, it is possible to reduce the mounting area of the circuit board (30) by the amount of the noise filter capacitors (53m) (53s) and the smoothing capacitors (54m) (54s), and thereby the size of the electronic control device (E1) can be reduced.

IPC Classes  ?

  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack
  • H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output

37.

Power Supply Network, Electric Vehicle, and Power Conversion Device

      
Application Number 19101648
Status Pending
Filing Date 2023-08-02
First Publication Date 2026-02-12
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kanekawa, Nobuyasu
  • Nakano, Hiroshi
  • Fukuda, Takao
  • Inada, Ryoichi
  • Jumonji, Kentaro

Abstract

The object of the present invention is to achieve redundancy of a power supply function by a simple configuration, to ensure operational continuity in case of failure. A power grid (1) comprises: a first power supply path (20-1) that is connected to a main engine-driving power source (100-0) of a vehicle via a power conversion device (101) and to loads (40-1, 41, 42-1) ; and a second power supply path (20-2) that is connected to a power source (100-2) different from the main engine-driving power source (100-0), to loads (40-2, 41, 42-2), and to the first power supply path (20-1) via a switch SW0. The switch SW0 is closed when the first power supply path (20-1) and the second power supply path (20-2) are normal, and is opened when the first power supply path (20-1) or the second power supply path (20-2) is abnormal.

IPC Classes  ?

  • B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
  • B60L 3/04 - Cutting-off the power supply under fault conditions
  • B60L 7/16 - Dynamic electric regenerative braking for vehicles comprising converters between the power source and the motor
  • B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
  • H02J 1/08 - Three-wire systemsSystems having more than three wires
  • H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over

38.

AC MOTOR CONTROL DEVICE, ELECTRIC VEHICLE, AND AC MOTOR CONTROL METHOD

      
Application Number 18992820
Status Pending
Filing Date 2023-06-02
First Publication Date 2026-02-12
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Taniguchi, Shun
  • Matsuo, Kentaro
  • Ajima, Toshiyuki

Abstract

Provided is an AC motor control device that controls driving of an AC motor by voltage phase control, the AC motor control device being capable of increasing a response speed as a whole while suppressing a reverse response of a current. The AC motor control device converts DC power into AC power based on a voltage phase command output from a voltage phase control unit and outputs the AC power to an AC motor, and the voltage phase control unit includes a change amount limiting unit that limits a change amount of a voltage phase.

IPC Classes  ?

  • H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
  • H02P 23/04 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting

39.

Power Conversion Device and Drive Device

      
Application Number 18995278
Status Pending
Filing Date 2023-07-19
First Publication Date 2026-02-05
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Inada, Ryoichi
  • Nakano, Hiroshi
  • Kanekawa, Nobuyasu
  • Shigeta, Satoru
  • Sugure, Yasuo

Abstract

A power conversion device that converts DC power into three-phase AC power and outputs the three-phase AC power includes: an AC current sensor that detects two-phase current values among three-phase AC currents generated by the three-phase AC power; a target current calculation unit that calculates a target current based on a target torque; a voltage command calculation unit that calculates a voltage command value based on the target current and a detection value of the AC current sensor; and an AC current sensor diagnosis unit that determines abnormality of the AC current sensor based on a detection value of the AC current sensor. The AC current sensor diagnosis unit includes: a first diagnosis unit that determines the abnormality based on a two-phase voltage command value obtained by converting the voltage command value into a value in a two-phase orthogonal coordinate system with any output phase as a reference; and a second diagnosis unit that determines the abnormality based on a two-phase current detection value obtained by converting a detection value of the AC current sensor into a value in the two-phase orthogonal coordinate system. The AC current sensor diagnosis unit performs switching of determination between the determination of the abnormality by the first diagnosis unit and the determination of the abnormality by the second diagnosis unit corresponding to an operation condition of the power conversion device.

IPC Classes  ?

  • H02M 7/539 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
  • H02M 1/00 - Details of apparatus for conversion

40.

STEERING DEVICE

      
Application Number 18996386
Status Pending
Filing Date 2023-09-04
First Publication Date 2026-02-05
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Ohnishi, Teruyuki

Abstract

Provided is a steering device that can be improved in assembly workability. A sensor-side connector is oriented at an angle to a pinion shaft. An EPP includes a first terminal to which a first harness is connected and a second terminal to which a second harness is connected. The first terminal is provided closer to the pinion shaft than the second terminal is. The first harness has length that is set shorter than the second harness.

IPC Classes  ?

  • B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

41.

ELECTRONIC CONTROL DEVICE

      
Application Number 19099114
Status Pending
Filing Date 2022-08-03
First Publication Date 2026-02-05
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Watarai, Michihito

Abstract

An electronic control device (1) includes: a housing (2) adapted to seal and house a circuit board (6); first heat dissipation fins (21a) provided on the lower surface of the housing (2); second heat dissipation fins (22a) provided on the upper surface of the housing (2); an air duct (4) attached to the outer side of the housing (2) so as to cover the first heat dissipation fins and the second heat dissipation fins and adapted to form a cooling air flow path for flowing cooling air therethrough near the upper surface and the lower surface of the housing (2); and cooling fans (8) installed downstream of the heat dissipation fins (21a, 22a) positioned in a downstream side of the cooling air flow path, out of the first heat dissipation fins (21a) and the second heat dissipation fins (22a), and adapted to exhaust cooling air toward the downstream side of the cooling air flow path. The cooling air flow path is formed to be a single flow path without branching, through a portion from the first heat dissipation fins (21a) up to the second heat dissipation fins (22a).

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

42.

CONTROL SYSTEM, MANAGEMENT METHOD, AND MANAGEMENT PROGRAM

      
Application Number 19099798
Status Pending
Filing Date 2023-07-03
First Publication Date 2026-02-05
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kato, Seiya
  • Ikeda, Takahiro
  • Matsumoto, Takashi
  • Atarashi, Yoshitaka
  • Fuse, Yasuhiro
  • Kondo, Akihiro

Abstract

A control system, a management method, and a management program for autonomous driving capable of reliably performing a safety check on a surrounding of an autonomous driving vehicle and reducing a risk of collision during a startup due to a check omission. Whether a safety check is performed is grasped using an in-vehicle camera that monitors a surrounding of a vehicle, a QR code (registered trademark) set at the surrounding of the vehicle, or a one-time password, and an erroneous vehicle is not subjected to a startup by using a check result in response to an instruction to start an autonomous driving by an on-site manager. Further, a range in which the autonomous driving or the remote control operation is permitted is set according to a range in which the check is performed. Accordingly, a risk of collision during a startup of the autonomous driving vehicle is reduced.

IPC Classes  ?

  • B60W 50/02 - Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
  • B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention
  • B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles

43.

POWER CONVERSION APPARATUS

      
Application Number 18993251
Status Pending
Filing Date 2022-07-28
First Publication Date 2026-01-29
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Oda, Rinnosuke
  • Ishii, Toshiaki
  • Tokoo, Naoya

Abstract

A power conversion apparatus is a semiconductor apparatus including: a semiconductor module in which a semiconductor element and the heat exchanger plate connected to the semiconductor element are molded and sealed with resin; and a thermal conductive material having a semisolid shape disposed between the semiconductor module and a cooling member that cools the semiconductor module, in which a thickness of the resin between the thermal conductive material and the heat exchanger plate is larger than a thickness of the thermal conductive material.

IPC Classes  ?

  • H01L 23/367 - Cooling facilitated by shape of device
  • H01L 23/29 - Encapsulation, e.g. encapsulating layers, coatings characterised by the material
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

44.

ELECTRONIC SUBSTRATE UNIT AND BATTERY MONITORING SYSTEM

      
Application Number 18997243
Status Pending
Filing Date 2022-11-30
First Publication Date 2026-01-29
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Suzuki, Jun
  • O, Ei

Abstract

An electronic substrate unit that is accommodated inside a housing of a battery pack includes an electronic substrate on which a circuit is formed, and a wireless module mounted on the electronic substrate, in which the electronic substrate includes a plurality of attachment portions of the wireless module, and the wireless module is provided on the electronic substrate in a one-on-one manner, and is attached to one of the plurality of attachment portions.

IPC Classes  ?

  • H05K 1/02 - Printed circuits Details
  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte

45.

VEHICLE CONTROL DEVICE

      
Application Number 19099852
Status Pending
Filing Date 2022-09-27
First Publication Date 2026-01-29
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Wang, Jian
  • Takahama, Taku

Abstract

Provided is a vehicle control device that enables earlier and correct actuation of an alarm and a brake of an AEB system by improving the responsiveness and accuracy of estimation of a traveling path of a host vehicle. According to the present invention, for example, a future steering angle is estimated highly responsively from a yaw angle during turning as a change in a steering speed at the start of turn of the steering wheel and at turning back of the steering wheel is taken into consideration, and the estimated steering angle is limited to prevent it from exceeding a steady-state steering angle (≈maximum steering angle) at the time of making a right or left turn at an intersection, the steady-state steering angle being determined from the vehicle's behavior at an initial stage of its turning. This prevents overestimation.

IPC Classes  ?

  • B60W 30/09 - Taking automatic action to avoid collision, e.g. braking and steering
  • B60W 30/095 - Predicting travel path or likelihood of collision
  • B60W 30/18 - Propelling the vehicle
  • B60W 40/114 - Yaw movement
  • B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention

46.

Motor drive device

      
Application Number 18041776
Grant Number 12531458
Status In Force
Filing Date 2023-02-15
First Publication Date 2026-01-20
Grant Date 2026-01-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Fujimoto, Masao
  • Yanagisawa, Yuuichi
  • Ishii, Akira

Abstract

A stator (1B) has stator coils (U1, V1 and W1) of a first system and stator coils (U2, V2 and W2) of a second system, and the coils are supplied with power from inverter modules (21). A fuse module (22) has two fuse circuit elements (32) corresponding to respective systems. Phase lines of U, V and W of each fuse circuit element (32) are connected together at a neutral point (40), and a fuse (38) is interposed between the neutral point (40) and each coil. By supplying power to a heater (39) accommodated in the fuse circuit element (32) from a control terminal (34), the fuse (38) is blown out.

IPC Classes  ?

  • H02K 11/25 - Devices for sensing temperature, or actuated thereby
  • H02K 11/30 - Structural association with control circuits or drive circuits
  • H02K 11/33 - Drive circuits, e.g. power electronics

47.

PLANAR COIL ARRAY AND DISPLACEMENT SENSOR

      
Application Number 18992048
Status Pending
Filing Date 2022-07-11
First Publication Date 2026-01-15
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Murakami, Yosuke
  • Fujikawa, Yosuke

Abstract

A three-dimensionally shaped coil can be manufactured at low cost and easily and uses a planar coil array. In the planar coil array, a flexible board comprises: a first planar coil that has a first spiral shape in which a first conductor is wound in a left-handed or right-handed manner with respect to a first center; and a second planar coil in which a second conductor in the same layer as the first conductor formed on the flexible board is wound with respect to a second center in the same manner of winding as the first coil, the second planar coil having an angular misalignment from the first spiral shape, being disposed adjacent to the first planar coil in a predetermined direction, and being electrically connected to the first planar coil. The flexible board is bent, thereby forming a three-dimensionally shaped coil.

IPC Classes  ?

  • G01B 7/02 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness
  • G01D 5/22 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
  • H01F 21/10 - Variable inductances or transformers of the signal type continuously variable, e.g. variometers by means of a movable shield

48.

DOCUMENT ANALYZING DEVICE AND DOCUMENT ANALYZING PROGRAM

      
Application Number 18993609
Status Pending
Filing Date 2023-06-08
First Publication Date 2026-01-15
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kitani, Mitsuhiro
  • Chow, Man Yiu
  • Matsubara, Masahiro

Abstract

Efficient use of software assets and efficiency of software development is enhanced utilizing a document analyzing device which includes a group classifying section which determines requirement items included in a first document as a target of analysis, and classifies the requirement items into a plurality of groups, a topic extracting section configured to extract, as topics, terms related to the requirement items classified into the plurality of groups, a topic difference extracting section which compares topics included in groups of an already analyzed second document different from the first document with the topics included in the groups of the first document, and extracts differences between the topics included in the groups of the second document and the topics included in the groups of the first document, and an analysis result output section outputs an analysis result indicating a result of the analysis including the differences to an outside.

IPC Classes  ?

49.

Electronic Device and Method For Manufacturing Electronic Device

      
Application Number 18996115
Status Pending
Filing Date 2023-06-07
First Publication Date 2026-01-15
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Ikeda, Osamu
  • Kaneko, Yujiro
  • Takagi, Yusuke

Abstract

An electronic device includes: a first electronic component which has a Ni-based electrode; and a second electronic component which is joined to the Ni-based electrode via Sn-based solder. A (Cu, Ni, Pd)6Sn5 compound layer exists at a joint interface between the Ni-based electrode and the Sn-based solder, and content of Pd existing as a (Pd, Ni)Sn4 compound in a parent phase of the Sn-based solder after joining is less than content of Pd existing as the (Cu, Ni, Pd)6Sn5 compound layer or is zero.

IPC Classes  ?

  • B23K 35/26 - Selection of soldering or welding materials proper with the principal constituent melting at less than 400°C
  • B23K 101/40 - Semiconductor devices
  • C22C 13/00 - Alloys based on tin
  • H01L 23/00 - Details of semiconductor or other solid state devices

50.

Motor Control Apparatus and Motor Control Method

      
Application Number 19112035
Status Pending
Filing Date 2023-09-07
First Publication Date 2026-01-15
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Saotome, Hiroto
  • Hano, Masaki

Abstract

The rotor of an electric motor is rotated by sequentially switching the energization mode that determines two phases to which a pulse voltage is applied, among the three phases of the electric motor. The pulse voltage alternately generates a first pulse that rotates the rotor in one direction and a second pulse that has a polarity opposite to that of the first pulse and that rotates the rotor in the opposite direction. The energization mode is sequentially switched to the one direction or the opposite direction, based on the comparison between a value of a first open-phase voltage induced by application of the first pulse and a first threshold. The first threshold is set based on a value of the first open-phase voltage and a first initial threshold that is set in advance per energization mode.

IPC Classes  ?

  • H02P 6/30 - Arrangements for controlling the direction of rotation
  • H02P 6/185 - Circuit arrangements for detecting position without separate position detecting elements using inductance sensing, e.g. pulse excitation

51.

Synchronous Machine Control Device, Synchronous Machine Control Method, and Electric Vehicle

      
Application Number 19332949
Status Pending
Filing Date 2025-09-18
First Publication Date 2026-01-15
Owner Hitachi, Astemo, Ltd. (Japan)
Inventor
  • Taniguchi, Shun
  • Nakao, Noriya
  • Tobari, Kazuaki
  • Ajima, Toshiyuki
  • Matsuo, Kentaro

Abstract

Disclosed is a synchronous machine control device capable of suitably executing stabilization control of a synchronous machine. This synchronous machine control device controls a power converter (2) to which a synchronous machine (1) is connected, and comprises: a first magnetic flux command calculation unit (21) that calculates a first magnetic flux command value from an electric current command value of the synchronous machine; a magnetic flux estimation unit (23) that estimates a magnetic flux value of the synchronous machine from an electric current detection value of the synchronous machine; a voltage calculation unit (19) that generates a voltage command value for the power converter such that the first magnetic flux command value and the magnetic flux value match; and a damping ratio control unit (27) that, on the basis of a vibration component of the magnetic flux value, generates a correction amount for the voltage command value such that the vibration component is damped.

IPC Classes  ?

  • H02P 25/024 - Synchronous motors controlled by supply frequency
  • H02P 21/14 - Estimation or adaptation of machine parameters, e.g. flux, current or voltage
  • H02P 21/22 - Current control, e.g. using a current control loop
  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation

52.

POWER CONVERSION APPARATUS, AND MANUFACTURING METHOD FOR POWER CONVERSION APPARATUS

      
Application Number 18993267
Status Pending
Filing Date 2022-07-28
First Publication Date 2026-01-15
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Tokoo, Naoya
  • Ishii, Toshiaki
  • Oda, Rinnosuke

Abstract

A power conversion apparatus includes: a semiconductor element; a heat exchanger plate connected to the semiconductor element; a semiconductor module formed by molding the semiconductor element and the heat exchanger plate with resin; a thermal conductive material having a semisolid shape that is disposed in contact with the heat exchanger plate and covering one surface of the semiconductor module; and a heat dissipation member that dissipates heat from the semiconductor module through the thermal conductive material.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • H02M 3/00 - Conversion of DC power input into DC power output

53.

Electronic Control Apparatus and Planning Method

      
Application Number 18993615
Status Pending
Filing Date 2023-06-29
First Publication Date 2026-01-15
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Horita, Yuki
  • Inaba, Ryoh
  • Gabriel, Daniel
  • Monji, Tatsuhiko

Abstract

An electronic control apparatus is mounted on a vehicle and includes an information acquiring section that acquires traveling environment information concerning a traveling environment around the vehicle, an immobility risk area estimating section that estimates an immobility restriction area on the basis of the traveling environment information, the immobility restriction area being an area where, if the vehicle is immobilized therein, the vehicle obstructs an action by a mobile object other than the vehicle, and being an area where immobility of the vehicle is restricted, and a traveling control planning section that plans traveling control of the vehicle on the basis of the estimated immobility restriction area.

IPC Classes  ?

  • B60W 30/09 - Taking automatic action to avoid collision, e.g. braking and steering
  • B60W 30/095 - Predicting travel path or likelihood of collision
  • B60W 30/18 - Propelling the vehicle
  • B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
  • B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles

54.

VEHICLE CONTROL APPARATUS AND VEHICLE CONTROL METHOD

      
Application Number 18995279
Status Pending
Filing Date 2023-05-16
First Publication Date 2026-01-15
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Gabriel, Daniel
  • Horita, Yuki
  • Toyoda, Hidehiro

Abstract

A vehicle control apparatus appropriately resumes traveling after a host vehicle performs an escaping action. The vehicle control apparatus includes a candidate area determination unit that determines a passable area, which is an area where a host vehicle and an oncoming vehicle can pass each other, on a road where there is an area where the host vehicle and the oncoming vehicle cannot pass each other, an action plan determination unit that determines an action plan indicating a sequence of action steps, of the host vehicle, a trajectory generation unit generating a travel trajectory of the host vehicle in the passable area, an action plan update unit that updates the action plan based on a position of the oncoming vehicle and a travel trajectory of the host vehicle generated by the trajectory generation unit, and a travel control unit controlling travel of the host vehicle according to the action plan.

IPC Classes  ?

  • B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
  • B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit

55.

STATE DETERMINATION DEVICE

      
Application Number 18880745
Status Pending
Filing Date 2023-03-13
First Publication Date 2026-01-01
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Morita, Nobuyoshi
  • Kataoka, Mikio
  • Fujii, Yasuhiro
  • Nomura, Teruaki

Abstract

A state determination device is a state determination device which determines an abnormal state of an electronic control device mounted on a vehicle, the state determination device including: an extra-vehicular communication monitoring unit which monitors a presence or an absence of communication between the electronic control device and an outside of the vehicle; a code verification unit which executes code verification of the electronic control device; a device abnormality monitoring unit which monitors occurrence or non-occurrence of abnormality of the electronic control device; and an abnormality factor determination unit which determines a factor of an abnormality, wherein the abnormality factor determination unit identifies a factor of the abnormality based on a presence or an absence of communication, a result of the code verification, and existence or non-existence of the abnormality.

IPC Classes  ?

  • G06F 21/56 - Computer malware detection or handling, e.g. anti-virus arrangements

56.

VEHICLE CONTROL DEVICE

      
Application Number 18880773
Status Pending
Filing Date 2023-03-02
First Publication Date 2026-01-01
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Nishiura, Chikara
  • Kashiwamura, Satoshi

Abstract

Provided is a vehicle control device capable of preventing unnecessary operations in a driving assistance function for avoiding a collision between an own vehicle and a pedestrian at an intersection, for example. There is provided an operation-suppression determination unit adapted to determine whether to change the result of collision determination (whether to suppress an unnecessary operation), based on the change (temporal change) of the lap rate between a target object and an own vehicle, and based on the change (temporal change) of the lateral speed generated in the target object with respect to the own vehicle, if a collision determination unit determines a collision. Further, there is provided a control-intervention determination unit adapted to determine control intervention in the own vehicle, based on results from the collision determination unit and the operation-suppression determination unit.

IPC Classes  ?

57.

SEMICONDUCTOR DEVICE

      
Application Number JP2025013304
Publication Number 2025/263064
Status In Force
Filing Date 2025-03-31
Publication Date 2025-12-26
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Matsushima, Hiroyuki
  • Shima, Akio
  • Shimizu, Haruka

Abstract

This semiconductor device comprises a first semiconductor element which comprises a first semiconductor, a second semiconductor element which comprises a second semiconductor having a band gap that is larger than that of the first semiconductor, a first electrode which is provided on one surface of the first semiconductor element and which is formed over the entire active region of the first semiconductor element and part of a termination region surrounding the periphery of the active region, a second electrode which is provided on one surface of the second semiconductor element and which is formed over the entire active region of the second semiconductor element and part of a termination region surrounding the periphery of the active region, a first conductor member which has a first junction portion electrically connected to the first electrode and a second junction portion electrically connected to the second electrode, and a second conductor member which is electrically connected to the other surface of each of the first semiconductor element and the second semiconductor element, wherein the shortest distance from an edge portion of the second electrode to the first conductor member is greater than the shortest distance from an edge portion of the first electrode to the first conductor member.

IPC Classes  ?

  • H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
  • H01L 25/18 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different main groups of the same subclass of , , , , or
  • H01L 23/48 - Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads or terminal arrangements
  • H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
  • H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

58.

Automated Driving System, Driving Regulation Method, and Driving Regulation Program

      
Application Number 18842868
Status Pending
Filing Date 2023-04-14
First Publication Date 2025-12-25
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Ikeda, Takahiro
  • Kato, Selya
  • Fuse, Yasuhiro
  • Kondo, Akihiro
  • Atarashi, Yoshitaka

Abstract

An automated driving system, a driving regulation method, and a driving regulation program that make it possible to set risk areas accurately and thereby achieve safe automated driving are provided. Included are a risk area setting unit 111 that identifies a risk type from field information on planning or operation, recorded in an operational information database 101 and an infrastructure information database 103, and that sets a predetermined area in a field area, as a risk area, on the basis of the risk type, and a vehicle route setting unit 117 that sets a traveling route for a vehicle 2 traveling in the field area, on the basis of vehicle position information of the vehicle 2 and the risk area set by the risk area setting unit 111.

IPC Classes  ?

  • B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles

59.

SOFTWARE ANALYSIS SYSTEM AND SOFTWARE ANALYSIS METHOD

      
Application Number 18876541
Status Pending
Filing Date 2023-05-10
First Publication Date 2025-12-25
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Wakabayashi, Noboru

Abstract

An object of the invention is to quickly specify a version of software that causes a defect even when update histories of a plurality of pieces of software are managed separately. In a software analysis system according to the invention, when a performance degradation of second software is detected by a performance test, a version updated by merging first software is specified or a version where reference information of the first software is changed from that before is specified among past versions of the second software, thereby specifying a candidate in the first software which is a cause of the degradation (see FIG. 4B).

IPC Classes  ?

60.

Electric Circuit Body and Power Conversion Device

      
Application Number 18878774
Status Pending
Filing Date 2023-05-15
First Publication Date 2025-12-25
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Tang, Ning
  • Tsuyuno, Nobutake
  • Kaneko, Yujiro

Abstract

An electric circuit body includes a semiconductor device incorporating a semiconductor element by sealing with a sealing material and having a heat dissipating surface for dissipating heat of the semiconductor element, the heat dissipating surface being formed on at least one surface, a cooling member disposed facing the heat dissipating surface of the semiconductor device and configured to cool the semiconductor element, and a heat conduction member disposed between the semiconductor device and the cooling member, wherein a terminal connected to the semiconductor element protrudes out from at least one side surface of the semiconductor device, and a first interval between the sealing material and the cooling member on the one side surface of the semiconductor device from which the terminal is protruded is narrower than a second interval between the sealing material and the cooling member on the other side surface of the semiconductor device from which the terminal is not protruded.

IPC Classes  ?

  • H01L 23/433 - Auxiliary members characterised by their shape, e.g. pistons
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
  • H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
  • H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
  • H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
  • H10D 80/20 - Assemblies of multiple devices comprising at least one device covered by this subclass the at least one device being covered by groups , e.g. assemblies comprising capacitors, power FETs or Schottky diodes

61.

ROUTE GENERATION DEVICE, VEHICLE CONTROL DEVICE, AND VEHICLE ROUTE DISTRIBUTION SYSTEM

      
Application Number 18877789
Status Pending
Filing Date 2023-03-06
First Publication Date 2025-12-18
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Hiramatsu, Yoshihisa

Abstract

Provided are a route generation device, a vehicle control device, and a vehicle route distribution system capable of making an emergency vehicle reach a destination without delay. Provided on a server (100) that generates and distributes route information are a route generation unit (101) that generates route information from map information and destination information of a vehicle, a route information storage unit (102) that saves the route information, a general vehicle traffic count calculation unit (104) that calculates the number of general vehicles traveling on a travel route of an emergency vehicle, and an emergency vehicle travel lane generation unit (105) that generates travel lane information that determines whether a lane on which the emergency vehicle travels passes a current travel lane, an opposite lane, or a middle between the travel lane and the opposite lane.

IPC Classes  ?

  • G08G 1/0968 - Systems involving transmission of navigation instructions to the vehicle
  • G08G 1/01 - Detecting movement of traffic to be counted or controlled
  • G08G 1/0965 - Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle

62.

BUMPER CAP AND SHOCK ABSORBER

      
Application Number 18878163
Status Pending
Filing Date 2023-05-26
First Publication Date 2025-12-18
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Hirata, Masatomo

Abstract

A bumper cap is used for a shock absorber. The shock absorber includes a cylinder, a piston and piston rod. The bumper cap is at an end part of the cylinder on a side from which the piston rod extends and is formed by die casting or injection molding, and includes a lid coming into contact with an axial end surface of the cylinder and having a through hole through which the piston rod is inserted. A cylindrical portion has a cylindrical shape provided radially outward from the through hole and an outer circumferential surface of the cylinder. A communication hole in the cylindrical portion permits communication between inner and outer circumferential surfaces of the cylindrical portion. An edge of the communication hole is narrower on the first end part side positioned downstream than at the second end part positioned upstream through which a material flows in during molding.

IPC Classes  ?

  • F16F 9/38 - Covers for protection or appearance
  • B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
  • F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
  • F16F 9/58 - Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder

63.

DAMPING FORCE GENERATION MECHANISM

      
Application Number 18878178
Status Pending
Filing Date 2023-05-19
First Publication Date 2025-12-18
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Nagayama, Hideo
  • Yamashita, Mikio
  • Kotani, Takamasa
  • Naito, Tsutomu

Abstract

The damping force generation mechanism includes a biasing force generation member having a bottomed cylindrical shape and forming a back pressure chamber which causes a first damping force generation member disposed on an opening side to generate a biasing force in a valve closing direction, a frequency sensitive mechanism configured such that a movable mechanism having a seal portion is movably provided in the first passage provided at a bottom portion of the biasing force generation member to connect the back pressure chamber and a first chamber, thereby making the biasing force variable, a second passage parallel to or common with the first passage and having one side allowed to communicate with the back pressure chamber, and a communication mechanism on the one side of the second passage and allowed to communicate with another side of the second passage only when the first chamber is on an upstream side.

IPC Classes  ?

  • F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
  • F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
  • F16F 9/36 - Special sealings, including sealings or guides for piston-rods

64.

MOTOR CONTROL DEVICE

      
Application Number 18877370
Status Pending
Filing Date 2023-05-31
First Publication Date 2025-12-18
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Takeda, Kodai
  • Taniguchi, Shun
  • Hara, Takafumi
  • Takahashi, Fumihiro

Abstract

A motor control device includes a torque ripple compensation value computation unit that calculates a torque ripple compensation value for compensating for torque ripple occurring in a motor based on an electrical angular velocity of the motor and a torque command value; a ripple amplitude upper limit value calculating unit that calculates a ripple amplitude upper limit value which is an upper limit value for an amplitude of the torque ripple compensation value based on the torque command value and a torque upper limit value set for the motor; and an amplitude adjustment unit that adjusts an amplitude of each frequency component in the torque ripple compensation value based on the ripple amplitude upper limit value and calculates an amplitude-adjusted torque ripple compensation value.

IPC Classes  ?

  • H02P 23/04 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting
  • B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
  • B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
  • H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
  • H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters

65.

Semiconductor Cooling Device, Power Conversion Device, and Method for Manufacturing Semiconductor Cooling Device

      
Application Number 18878800
Status Pending
Filing Date 2023-04-14
First Publication Date 2025-12-18
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Chen, Ti
  • Tokuyama, Takeshi
  • Aoyagi, Shigehisa
  • Miyazaki, Hideki
  • Namba, Akihiro
  • Araki, Takahiro

Abstract

A semiconductor cooling device includes a plurality of semiconductor modules, a plurality of first refrigerant flow paths provided corresponding to the semiconductor modules, and a pair of flow path pipes connected to the plurality of first refrigerant flow paths. The plurality of semiconductor modules are arranged on a substrate side by side in a first direction so as to face the plurality of first refrigerant flow paths, respectively. Each of the pair of flow path pipes extends along the first direction. In each of the plurality of semiconductor modules, a heat dissipation surface in contact with each of the plurality of first refrigerant flow paths is disposed in an intersecting direction with respect to an extending direction of the first refrigerant flow paths and an arrangement direction of the plurality of semiconductor modules. The first refrigerant flow path includes a deformable portion that is deformable in the intersecting direction.

IPC Classes  ?

  • H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids

66.

ELECTRONIC CONTROL DEVICE

      
Application Number 19111263
Status Pending
Filing Date 2022-09-26
First Publication Date 2025-12-18
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Ebina, Tomohito

Abstract

An electronic control device, wherein the operating system includes a host OS library in which a function to be called is recorded during execution of the program, wherein the program includes executable command code and a common IF unit in which a jump destination of a function called by the program is recorded, wherein the intermediate layer library includes an emulation unit including a function emulator that implements another function by combining functions stored in the host OS library, and an IF conversion unit that converts an address for the common IF unit to call the emulation unit and the host OS library, and wherein the operating system, the intermediate layer library, and the program are introduced to the electronic control device separately.

IPC Classes  ?

  • G06F 9/455 - EmulationInterpretationSoftware simulation, e.g. virtualisation or emulation of application or operating system execution engines

67.

Image processing device and image processing method

      
Application Number 18876986
Grant Number 12530801
Status In Force
Filing Date 2022-07-05
First Publication Date 2025-12-11
Grant Date 2026-01-20
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Eguchi, Akira

Abstract

An image processing device includes: a region dividing unit that divides each of a plurality of captured images captured by an in-vehicle camera into a plurality of divided regions; a feature point detection unit that detects, as a feature point, a portion exceeding a threshold value for each of the divided regions; a threshold value setting unit that sets the threshold value for each of the divided regions so as to evenly distribute the feature points detected in each of the divided regions; a feature point matching unit that performs matching by associating the feature points detected in the plurality of captured images with each other between the plurality of captured images; and a relative parameter calculation unit that calculates a relative parameter on the basis of the feature points associated between the plurality of captured images.

IPC Classes  ?

  • G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
  • G06T 7/215 - Motion-based segmentation
  • G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
  • G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
  • G06V 20/64 - Three-dimensional objects

68.

MOTOR CONTROL DEVICE, MOTOR DEVICE, AND STEERING SYSTEM

      
Application Number 18877138
Status Pending
Filing Date 2023-06-13
First Publication Date 2025-12-11
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Kimura, Makoto

Abstract

A motor control device, a motor device, and a steering system according to the present invention include a third inverter that is connected to a first branch point between a first multi-phase winding set and a first inverter and also to a second branch point between a second multi-phase winding set and a second inverter, switching relays including a first switching relay that is arranged between the first branch point and the third inverter and a second switching relay that is arranged between the second branch point and the third inverter, and a cut-off relay that is arranged between the first branch point and a ground and between the second branch point and the ground. The first switching relay and the second switching relay each have a diode that passes a current in a direction from a motor toward the third inverter, and the cut-off relay has a diode that passes a current in a direction from the ground toward the motor.

IPC Classes  ?

  • H02P 29/02 - Providing protection against overload without automatic interruption of supply
  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation

69.

Vehicle Control Device

      
Application Number 18876722
Status Pending
Filing Date 2023-05-31
First Publication Date 2025-12-11
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Fukuda, Takeshi
  • Mizoguchi, Masashi
  • Maeda, Koji
  • Ebina, Tomohito
  • Murakami, Takashi

Abstract

There are provided a first arithmetic operation unit and a second arithmetic operation unit. Here, it is determined as to whether the entire structure of new software can be updated in the first arithmetic operation unit or a part of the structure of the new software should be changed in arrangement to be in the second arithmetic operation unit, from information held by a resource information holding unit, based on the state of execution in the first arithmetic operation unit, and the structure of the new software to be newly implemented. When a part of the structure of the new software should be changed in arrangement to be in the second arithmetic operation unit, a part of the structure of the new software to be arranged in the second arithmetic operation unit is determined, in consideration of latencies in both the arithmetic operation units.

IPC Classes  ?

70.

PRESSURE REDUCTION VALVE AND PRODUCTION METHOD FOR PRESSURE REDUCTION VALVE

      
Application Number 18873873
Status Pending
Filing Date 2022-12-27
First Publication Date 2025-12-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Koyama, Tomoyoshi

Abstract

A pressure reduction valve includes: a body member that has an internal space for accommodating a valve element and has a body opening portion communicating with the internal space; a bottom wall surface-forming member that is accommodated in the internal space, is in contact with an inner wall surface of the body member, and forms a bottom wall surface of a valve chamber in which the valve element is located; and a cap member that is screwed to the body member and closes the body opening portion.

IPC Classes  ?

  • F16K 25/04 - Arrangements for preventing erosion, not otherwise provided for
  • F16K 1/36 - Valve members
  • F16K 1/46 - Attachment of sealing rings
  • F16K 27/02 - Construction of housingsUse of materials therefor of lift valves

71.

ELECTRIC BRAKE DEVICE

      
Application Number 18874449
Status Pending
Filing Date 2023-05-11
First Publication Date 2025-12-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Seto, Shinji
  • Goto, Daisuke

Abstract

It is an object of the present invention to provide an electric brake device capable of accurate control at low cost. The present invention includes a motor control device 11 that controls rotation of an electric motor 8 for pressing brake pads 5a, 5b. The motor control device 11 is provided with: a motor position-current relationship generation portion 43 that acquires a relationship between the rotational position and the current of the electric motor 8; a braking torque estimation portion 41 that estimates braking torque pressing the brake pads 5a, 5b, on the rotational position of the electric motor 8; and a braking torque-position relationship portion generation portion 42 that acquires a relationship between the rotational position and the braking torque of the electric motor 8 on the basis of information from the motor position-current relationship generation portion 43 and the braking torque estimation portion 41. The rotation of the electric motor 8 is controlled on the basis of information from the braking torque-position relationship portion generation portion 42.

IPC Classes  ?

  • B60T 8/171 - Detecting parameters used in the regulationMeasuring values used in the regulation
  • B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
  • B60T 17/18 - Safety devicesMonitoring
  • F16D 65/18 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
  • F16D 66/00 - Arrangements for monitoring working conditions of brakes, e.g. wear or temperature
  • F16D 121/24 - Electric or magnetic using motors
  • H02P 3/04 - Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake

72.

MOTOR CONTROL APPARATUS AND MOTOR CONTROL SYSTEM

      
Application Number 18876867
Status Pending
Filing Date 2023-06-30
First Publication Date 2025-12-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Fujita, Haruhiko
  • Usui, Takuya
  • Goto, Daisuke

Abstract

A motor control apparatus includes a first motor driving portion, a second motor driving portion, a first control portion, a second control portion, and a third control portion. The first control portion acquires a detection value of a first rotational sensor, which detects a rotational position of a brake motor, and monitors a phase current of the second motor driving portion. The second control portion acquires a detection value of a second rotational sensor, which detects the rotational position of the brake motor, and monitors a phase current of the first motor driving portion. The third control portion acquires a detection value of a third rotational sensor, which detects the rotational position of the brake motor, and monitors the phase current of the first motor driving portion and the phase current of the second motor driving portion.

IPC Classes  ?

  • H02P 29/028 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the motor continuing operation despite the fault condition, e.g. eliminating, compensating for or remedying the fault
  • B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
  • H02P 25/22 - Multiple windingsWindings for more than three phases

73.

BALANCER DEVICE FOR INTERNAL COMBUSTION ENGINE

      
Application Number 19111254
Status Pending
Filing Date 2023-12-01
First Publication Date 2025-12-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Matsuo, Masatoshi

Abstract

The balancer device includes: an idler shaft having an idler sprocket around which a drive chain is wound, and an idler gear integrated with the idler sprocket; and a balancer housing accommodating, thereinside, balancer shafts generating a vibratory force by the rotation force transmitted from the idler gear. The balancer housing includes: a support part which is provided on the outer part of an upper housing, and supports an end portion of the idler shaft; a boss portion which is provided at a position away from the support part; and a first reinforcing part and second reinforcing part which are disposed between the support part and the fixing portion to reinforce the lower part on the lower housing side of the support part. Consequently, it is possible to suppress the occurrence of noise and vibration between an idle gear and a drive side gear.

IPC Classes  ?

  • F16F 15/26 - Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system
  • F02B 77/00 - Component parts, details, or accessories, not otherwise provided for

74.

VEHICLE CONTROL SYSTEM AND VEHICLE CONTROL DEVICE

      
Application Number 19171427
Status Pending
Filing Date 2025-04-07
First Publication Date 2025-12-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Suzuki, Nobukazu

Abstract

In a vehicle control system S and a vehicle control device 100, when both a deceleration operation unit 52 and a starting operation unit 54 are operated while a vehicle 1 is stopped, a control unit 166 performs change control processing before the vehicle 1 starts, the change control processing changing one of a damping force of suspensions 30 and 40 and a vehicle height in a case where the one is controlled and changing both of the damping force of the suspensions 30 and 40 and the vehicle height in a case where the both elements are controlled.

IPC Classes  ?

  • B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
  • B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention

75.

Vehicle Control Device

      
Application Number 18873805
Status Pending
Filing Date 2023-05-22
First Publication Date 2025-12-04
Owner HITACHI ASTEMO LTD. (Japan)
Inventor
  • Omatsu, Hiroki
  • Fukuda, Takeshi
  • Maeda, Koji
  • Ebina, Tomohito
  • Murakami, Takashi

Abstract

A vehicle control device includes an execution available duration prediction unit configured to predict an execution available duration of a current automatic driving control software program based on external environmental information of a vehicle; and a verification target choosing unit configured to choose, from verification scenarios for verifying performance of a new automatic driving control software program, a verification scenario that can be executed and completed within the execution available duration as a verification target.

IPC Classes  ?

  • B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
  • B60W 30/06 - Automatic manoeuvring for parking
  • B60W 30/18 - Propelling the vehicle
  • B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention
  • G06F 11/3604 - Analysis of software for verifying properties of programs

76.

METHOD OF MANUFACTURING SHOCK ABSORBER

      
Application Number 18688873
Status Pending
Filing Date 2022-09-09
First Publication Date 2025-11-27
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Takagi, Wataru

Abstract

A damping unit and an actuating unit of a damping force adjustment mechanism are inserted into a case provided to a side portion of an outer tube (outer cylinder). After the damping unit and the actuating unit are fastened together, a shock absorber main body with an upper end (another end) of a piston rod facing down is placed in a spring seat fixing jig, and a spring seat is fixed (press-fitted) over the shock absorber main body. A spring seat support portion of the spring seat fixing jig is not arranged between the damping force adjustment mechanism or a bracket and the spring seat. Thus, the spring seat can be fixed (press-fitted) over the shock absorber main body (outer cylinder) without being restricted by an arrangement of the damping force adjustment mechanism or the bracket.

IPC Classes  ?

  • F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
  • B23P 19/04 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes for assembling or disassembling parts

77.

ELECTRONIC CONTROL DEVICE AND METHOD FOR MANUFACTURING ELECTRONIC CONTROL DEVICE

      
Application Number 18874933
Status Pending
Filing Date 2022-07-08
First Publication Date 2025-11-27
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Takahashi, Yusuke
  • Fukuzawa, Takayuki
  • Kawai, Yoshio

Abstract

An electronic control device includes a circuit board on which an electronic component is mounted, a conductive housing that houses the circuit board, and an electromagnetic wave shielding layer interposed between the circuit board and the housing. The housing has board pedestals for fixing the circuit board, and the electromagnetic wave shielding layer has compression regions pressed by the circuit board at positions away from the board pedestals by a predetermined distance.

IPC Classes  ?

  • H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
  • H05K 5/00 - Casings, cabinets or drawers for electric apparatus
  • H05K 5/04 - Metal casings

78.

INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD

      
Application Number 19108367
Status Pending
Filing Date 2022-10-21
First Publication Date 2025-11-27
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Matsuo, Shunsuke
  • Hayase, Shigenori
  • Komoriya, Yuichi

Abstract

An information processing device that generates integration information by performing integration processing of object information acquired by a plurality of sensors that detect an object for each cycle includes a weight setting unit that sets a weight to the object information, and an integration processing unit that generates integration information by performing integration processing of the object information in a processing order determined by at least the weight, and ends the integration processing of the current cycle in accordance with a lapse of time or the number of objects related to the object information used for the integration processing of the current cycle. The weight setting unit sets the weight of the object information based on an integration history indicating whether or not the object information has been used for the integration processing for each cycle.

IPC Classes  ?

  • G01S 13/931 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes of land vehicles

79.

POWER CONVERSION DEVICE AND ESTIMATION METHOD FOR DIRECT CURRENT IN POWER CONVERSION DEVICE

      
Application Number 18873196
Status Pending
Filing Date 2022-06-21
First Publication Date 2025-11-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Nakazato, Ryutaro
  • Hida, Shinichirou
  • Inada, Ryoichi

Abstract

A power conversion device that includes: switching elements of upper and lower arms connected in series between a positive-side terminal and a negative-side terminal of direct current; an alternating current detection unit that detects an alternating current derived from a connection point between the switching element of the upper arm and the switching element of the lower arm; a switch element inter-terminal voltage detection unit that detects an inter-terminal voltage of any switching element of the switching elements of the upper arm and the lower arm, and/or a mirror current detection unit that detects a mirror current flowing through a mirror element connected in parallel to each of the switching elements; and a direct current estimation unit that estimates a direct current flowing between the positive-side terminal and the negative-side terminal based on the inter-terminal voltage and/or the mirror current and the alternating current.

IPC Classes  ?

  • H02M 7/539 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
  • H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices

80.

Semiconductor Device

      
Application Number 18873767
Status Pending
Filing Date 2023-05-10
First Publication Date 2025-11-27
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kato, Masako
  • Ikeda, Osamu
  • Yamashita, Shiro

Abstract

A semiconductor device includes an electronic component and a board that are disposed opposite to each other in a first direction, and a solder that connects the electronic component and the board, in which the electronic component includes a first electrode on a surface facing the board, the board includes a second electrode on a surface facing the electronic component, the solder has a bonding portion that is an intermetallic compound at an interface with each of the electronic component and the board, the solder contains Sn as a main component, and a variation in thickness of the bonding portion in the first direction is less than 2 micrometers.

IPC Classes  ?

  • H01L 23/00 - Details of semiconductor or other solid state devices

81.

Onboard Control Unit

      
Application Number 18863704
Status Pending
Filing Date 2023-05-18
First Publication Date 2025-11-20
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kogo, Kenji
  • Norimatsu, Takayasu
  • Kokubo, Masaru
  • Maeda, Koji

Abstract

Provided is an onboard control unit that can quickly detect abnormalities in an onboard device such as an actuator or a sensor including a detection unit, and can be used to construct a robust onboard network system. The onboard control unit comprises: onboard devices in charge of controlling vehicle travel, such as a sensor and an actuator; and an electronic control unit that collects information on the onboard devices, wherein an abnormality of an onboard device becomes apparent in a driving power supply of the onboard device. Accordingly, power to be supplied to the electronic control unit is supplied as driving power to the onboard device, a value of current flowing through a power-feeding path thereof is measured by using an ammeter, the state of the onboard device is monitored on the basis of the current value, and whether an abnormality has occurred in the onboard device is determined by a control unit.

IPC Classes  ?

  • B60W 50/02 - Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere

82.

INSPECTION DEVICE, INSPECTION METHOD, AND METHOD OF MANUFACTURING PISTON

      
Application Number 18019170
Status Pending
Filing Date 2021-07-28
First Publication Date 2025-11-13
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Ichihara, Takehisa
  • Onozuka, Hideaki
  • Imaizumi, Takamasa
  • Hayashi, Hiroyuki

Abstract

A plurality of surface images are picked up while changing a relative posture of a surface of an object to be inspected with respect to an image pickup part configured to pick up an image of the surface of the object to be inspected under a state in which the surface of the object to be inspected is irradiated with light, and a defect and luminance unevenness of the surface of the object to be inspected are discriminated from each other based on a change in the plurality of surface images.

IPC Classes  ?

  • G01N 21/88 - Investigating the presence of flaws, defects or contamination
  • G06T 7/00 - Image analysis
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means

83.

ELECTROMAGNETIC FUEL INJECTION VALVE

      
Application Number 18690317
Status Pending
Filing Date 2022-10-25
First Publication Date 2025-11-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ouchi, Norihide
  • Suzuki, Yuya
  • Nabeshima, Yasuhiko
  • Azuma, Kohei

Abstract

In an electromagnetic fuel injection valve (I), when a fuel filter (20) and an orifice member (21) are press-fitted onto an inner peripheral surface of the fuel inlet cylinder part (7), interference between press-fit tolerances of the fuel filter (20) and the orifice member (21) is prevented, and reliable press-fitting fixation is ensured. A first press-fitted cylindrical surface (23) onto which the fuel filter (20) is press-fitted, and a second press-fitted cylindrical surface (24) contiguous with an outer end of the first press-fitted cylindrical surface (23) via a stepped part (25) and having a larger diameter than that of the first press-fitted cylindrical surface (23) and onto which the orifice member (21) is press-fitted are formed on the inner peripheral surface of the fuel inlet cylinder part (7).

IPC Classes  ?

  • F02M 61/16 - Details not provided for in, or of interest apart from, the apparatus of groups
  • F02M 51/06 - Injectors peculiar thereto

84.

ABNORMALITY DIAGNOSIS DEVICE

      
Application Number 18855451
Status Pending
Filing Date 2023-03-20
First Publication Date 2025-11-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ninomiya, Takeru
  • Irie, Kota

Abstract

Provided is an abnormality diagnosis device capable of determining an abnormal region generated in a sensor in a short time. The abnormality diagnosis device includes: a target reliability determination unit 400 which determines reliability of a target based on a detection result in a common imaging region; and an individual abnormal image region determination unit 500 which determines an abnormal image region in a monocular region using a tracking result of the target in the monocular region, wherein the individual abnormal image region determination unit 500 changes an abnormality score of an abnormality score map assigned to an abnormal image region according to the reliability of the target.

IPC Classes  ?

  • G06V 10/98 - Detection or correction of errors, e.g. by rescanning the pattern or by human interventionEvaluation of the quality of the acquired patterns
  • G06T 7/00 - Image analysis
  • G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads

85.

STEERING APPARATUS CONTROL APPARATUS, STEERING APPARATUS CONTROL METHOD, AND STEERING SYSTEM

      
Application Number 18685780
Status Pending
Filing Date 2022-07-08
First Publication Date 2025-10-30
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Liu, Huajun

Abstract

A steering apparatus control apparatus, a steering apparatus control method, and a steering system according to the present invention are applied to a vehicle including a steering apparatus configured to be able to control a steering angle of road wheels independently of an operation quantity of a steering operation input member, compare a target yaw rate based on a physical quantity about a running state of the vehicle and the operation quantity of the steering operation input member with an actual yaw rate based on the physical quantity about the running state of the vehicle, and control a steering actuator in a direction in which a yaw rate of the vehicle is cancelled out such that the actual yaw rate approximates the target yaw rate. In this way, vehicle behavior that agrees with driver intention can be realized.

IPC Classes  ?

  • B62D 6/00 - Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
  • B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

86.

ELECTRIC BRAKE APPARATUS AND DRIVE UNIT

      
Application Number 18688876
Status Pending
Filing Date 2022-12-05
First Publication Date 2025-10-30
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Sakimoto, Koichi
  • Sakashita, Takayasu
  • Yoshizu, Rikiya

Abstract

A fail-open mechanism employed in a disk brake that is an electric brake apparatus includes a spring clutch disposed between a spindle and a torque transmission member and configured to cause the torque transmission member to rotate together with the spindle until a rotational resistance force between the spindle and the spring clutch exceeds a predetermined value, a non-rotatably configured fixation member, and a torsion spring having a one-end portion connected to the torque transmission member and an opposite-end portion connected to the fixation member and configured to store elastic energy therein due to a rotation of the torque transmission member relative to the fixation member according to the rotation of the spindle. As a result, the disk brake can prevent or reduce the impairment of layout flexibility thereof.

IPC Classes  ?

  • F16D 65/18 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
  • B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
  • F16D 7/02 - Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
  • F16D 55/226 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially
  • F16D 121/24 - Electric or magnetic using motors
  • F16D 125/40 - Screw-and-nut

87.

ELECTRONIC CONTROL UNIT AND GATE DRIVING METHOD OF POWER SEMICONDUCTOR ELEMENT

      
Application Number 18868116
Status Pending
Filing Date 2022-05-27
First Publication Date 2025-10-23
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Doi, Masahiro
  • Ikuyama, Takeshi
  • Iinuma, Takuya

Abstract

In an electronic control unit on which a power semiconductor element is mounted, provided is a highly reliable and low-loss electronic control unit capable of performing a high-speed switching operation while suppressing a surge voltage during a switching operation of the power semiconductor element. The electronic control unit includes: a microcontroller; a power semiconductor element; and a gate drive circuit that generates a gate drive current of the power semiconductor element on a basis of a command from the microcontroller. The gate drive circuit detects a change in an output voltage of the power semiconductor element to detect start of on/off operation of switching, increases a gate drive current in a process of the switching in an on state and before reaching a peak voltage, and decreases the gate drive current in a process of the switching in an off state and before reaching the peak voltage.

IPC Classes  ?

  • H03K 3/012 - Modifications of generator to improve response time or to decrease power consumption
  • H03K 17/687 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being field-effect transistors

88.

INTRUSION DETECTION DEVICE AND INTRUSION DETECTION METHOD

      
Application Number 18881635
Status Pending
Filing Date 2023-03-08
First Publication Date 2025-10-09
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Nomura, Teruaki
  • Morita, Nobuyoshi
  • Kaneko, Shuhei
  • Fujii, Yasuhiro
  • Kataoka, Mikio

Abstract

Provided are an intrusion detection device and a detection method that enable detection of unauthorized communication to be performed more accurately. This intrusion detection device includes a communication unit that transmits and receives a frame to and from an in-vehicle electronic device; an attribute acquisition unit that acquires an attribute of the frame; a status acquisition unit that acquires communication control status information indicating a communication control status of the frame by the in-vehicle electronic device; and an abnormality detection unit that detects an abnormality of the in-vehicle electronic device on the basis of the attribute and the communication control status. Even when the number of frames transmitted per unit time is equal to or less than a predetermined value, it is possible to determine an abnormality of the in-vehicle electronic device according to the communication control status of the ECU 20 constituting the transmission source of the frame and the attributes of the frame.

IPC Classes  ?

  • G06F 21/55 - Detecting local intrusion or implementing counter-measures

89.

Compressor

      
Application Number 18292600
Grant Number 12584472
Status In Force
Filing Date 2022-06-01
First Publication Date 2025-10-09
Grant Date 2026-03-24
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Kobayashi, Kan
  • Nakadate, Takao

Abstract

A piston (18) of a compressor (1) partitions the inside of a cylinder (17) into a compression chamber (21) and a suction chamber (22). A communication passage (19A) is formed in the piston (18). The communication passage (19A) establishes communication between the compression chamber (21) and the suction chamber (22). The suction valve (23) opens and closes an opening (19A1) of the communication passage (19A). The suction valve (23) has a plate-like shape. The suction valve (23) includes a fixation portion (23A) fixed to the piston (18), a closing portion (23B) configured to cover the opening (19A), and a spring portion (23C) connecting the fixation portion (23A) and the closing portion (23B). A spring portion facing portion (19B) in the piston (18), which faces the spring portion (23C) of the suction valve (23), is recessed more deeply than a closing portion facing portion (19C), which faces the closing portion (23B) of the suction valve (23).

IPC Classes  ?

  • F04B 39/10 - Adaptation or arrangement of distribution members
  • F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups

90.

CONTROL METHOD, APPARATUS, DEVICE, AND STORAGE MEDIUM FOR AUTONOMOUS DRIVING VEHICLE

      
Application Number 18864181
Status Pending
Filing Date 2023-04-21
First Publication Date 2025-10-02
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Meng, Yi
  • Endo, Hideki
  • Meng, Xiangzan
  • Fuse, Yasuhiro
  • Katou, Seiya

Abstract

The present invention provides a method, an apparatus, an electronic device, and a computer-readable storage medium for controlling an autonomous driving vehicle in a restricted area for a control center to adjust traveling of the autonomous driving vehicle. The method includes acquiring state information of a moving object in the restricted area, the moving object including a non-autonomous moving object and an autonomous driving vehicle, the non-autonomous moving object including a pedestrian and/or a non-autonomous driving vehicle, the state information including motion information and position information, the motion information including a motion direction and a motion speed; determining, based on state information of each of the moving objects, a temporary restricted passage space corresponding to the each moving object; and adjusting, based on state information of a current autonomous driving vehicle and a temporary restricted passage space corresponding to each of all other moving objects, traveling of the current autonomous driving vehicle. The method does not require installation of a dedicated vehicle passage area, can ensure safe operation of an autonomous driving vehicle in the entire restricted area, and is inexpensive.

IPC Classes  ?

  • B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
  • B60W 30/09 - Taking automatic action to avoid collision, e.g. braking and steering
  • B60W 30/095 - Predicting travel path or likelihood of collision
  • B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
  • G08G 1/0967 - Systems involving transmission of highway information, e.g. weather, speed limits
  • G08G 1/16 - Anti-collision systems

91.

CONTROL DEVICE AND METHOD FOR VEHICLE

      
Application Number 19090681
Status Pending
Filing Date 2025-03-26
First Publication Date 2025-10-02
Owner
  • HONDA MOTOR CO., LTD. (Japan)
  • Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kobayashi, Fumiya
  • Tanaka, Yuya
  • Fukasawa, Yoshitaka

Abstract

A control device is provided in a vehicle having a radar device or a LiDAR which detects a plurality of external targets. The control device has a vehicle speed acquisition unit which acquires a vehicle speed detected by a vehicle speed sensor mounted on the vehicle, and a vehicle speed correction unit which corrects the vehicle speed based on a detection result of the radar device or the LiDAR. The vehicle speed correction unit acquires information on a plurality of stationary objects among the plurality of targets, based on the detection result of the radar device or the LiDAR, and corrects the vehicle speed based on relative speeds of the stationary objects relative to the vehicle, in a case where a predetermined condition is satisfied. The predetermined condition includes that the number of the stationary objects is equal to or greater than a predetermined number.

IPC Classes  ?

92.

METHOD OF PRODUCING TUBE BODY

      
Application Number 19229467
Status Pending
Filing Date 2025-06-05
First Publication Date 2025-09-25
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Nakayama, Takahiro
  • Mori, Kenichi
  • Ohta, Kazuki

Abstract

A tube body production method includes steps of: disposing a fiber body with respect to an outer circumferential surface of a mandrel so that the fiber body extends in an axial direction of the mandrel and an axial direction end portion of the mandrel has an exposed region where the fiber body is not disposed; disposing a fixing member with respect to the outer circumferential surface of the mandrel so that the fixing member covers the fiber body and extends to the exposed region, the fixing member having a tubular shape and configured to fix the fiber body with respect to the outer circumferential surface of the mandrel; and impregnating the fiber body with a resin on the outer circumferential surface of the mandrel and then heating the resin to mold the resin.

IPC Classes  ?

  • F16L 9/12 - Rigid pipes of plastics with or without reinforcement
  • B29C 63/00 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor
  • B29C 63/42 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor by liberation of internal stresses using tubular layers or sheathings
  • B29K 105/02 - Condition, form or state of moulded material heat-shrinkable
  • B29K 307/04 - Carbon
  • B29L 23/00 - Tubular articles

93.

CARBON-FIBER-REINFORCED RESIN CYLINDER FOR PROPELLER SHAFTS

      
Application Number 18859470
Status Pending
Filing Date 2022-06-08
First Publication Date 2025-09-11
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Nakayama, Takahiro
  • Shin, Daejin

Abstract

A carbon-fiber-reinforced resin cylinder for propeller shafts includes a first-carbon-fiber-reinforced resin layer having a first carbon fiber, and a second-carbon-fiber-reinforced resin layer having a second carbon fiber and being higher in strength and lower in elastic modulus than the first-carbon-fiber-reinforced resin layer. The first carbon fiber is arranged so as to extend along a longitudinal direction of the cylinder.

IPC Classes  ?

  • B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
  • B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
  • B29K 105/10 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns oriented
  • B29K 307/04 - Carbon
  • B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers

94.

METHOD FOR PRODUCING TUBE BODY

      
Application Number 19214893
Status Pending
Filing Date 2025-05-21
First Publication Date 2025-09-11
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Nakayama, Takahiro
  • Mori, Kenichi
  • Ohta, Kazuki
  • Tanigawa, Motohiro
  • Uozumi, Tadashi

Abstract

A tube body production method includes repeating a fiber layer forming step to form fiber layers so that the fiber layers are disposed in a manner of being stacked in a radial direction of a cylindrical tube member. Each fiber layer forming step includes, to form a current fiber layer: disposing a respective fiber body with respect to an outer circumferential surface of the cylindrical tube member so that the respective fiber body extends in an axial direction of the cylindrical tube member; and winding a respective first fixing member with respect to the outer circumferential surface of the cylindrical tube member such that the respective first fixing member is wound over the respective fiber body by one or more turns in a circumferential direction, along the axial direction of the cylindrical tube member, at a different phase with respect to the first fixing members disposed for other fiber layers.

IPC Classes  ?

  • F16L 9/14 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
  • B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
  • B29K 307/04 - Carbon
  • B29L 23/00 - Tubular articles
  • F16L 9/12 - Rigid pipes of plastics with or without reinforcement

95.

SEMICONDUCTOR MODULE

      
Application Number 18702558
Status Pending
Filing Date 2022-10-19
First Publication Date 2025-09-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Araki, Takahiro
  • Tokuyama, Takeshi
  • Aoyagi, Shigehisa

Abstract

A semiconductor module includes: a circuit body having a semiconductor element, and a plurality of external terminals to be connected to the semiconductor element; a substrate having a power wiring layer to be connected to the external terminals; an insulating filling member for covering a connection part between the external terminals and the power wiring layer; a cooler having one surface side on which the circuit body and the substrate are mounted; and a heat dissipation member disposed between the cooler and the substrate. In the semiconductor module, the heat dissipation member forms a frame part on the cooler so as to enclose an outer periphery of a region where the circuit body is mounted, and the filling member is filled into an inner peripheral side of the frame part.

IPC Classes  ?

  • H01L 23/367 - Cooling facilitated by shape of device
  • H01L 23/18 - Fillings characterised by the material, its physical or chemical properties, or its arrangement within the complete device

96.

Damping force variable shock absorber

      
Application Number 18858617
Grant Number 12441150
Status In Force
Filing Date 2022-04-22
First Publication Date 2025-08-28
Grant Date 2025-10-14
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Tokuhara, Masato
  • Nishimoto, Akira

Abstract

A damping force variable shock absorber includes a damping force variable mechanism including a damping force generator, a damping force variable actuator, and a damping force controller which controls an operation of the damping force variable actuator, and a vehicle height control mechanism including a self-pumping mechanism configured to, using a vibration caused by traveling of a vehicle as a driving force, pressurize a hydraulic oil and push a spring, a vehicle height variable actuator which switches a flow path of the hydraulic oil pressurize by self-pumping, and a vehicle height controller which controls an operation of the vehicle height variable actuator. The damping force controller performs a damping force variable control in which a damping force in a pushing process of the spring while a vehicle height is increasing is set to be weaker than a damping force during a period in which the vehicle height is not increasing.

IPC Classes  ?

  • B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
  • B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
  • B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
  • B62K 25/28 - Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
  • B62K 25/04 - Axle suspensions for mounting axles resiliently on cycle frame or fork

97.

Control device and method for controlling an injector

      
Application Number 18858504
Grant Number 12510040
Status In Force
Filing Date 2023-04-25
First Publication Date 2025-08-21
Grant Date 2025-12-30
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Miyamoto, Akiyasu
  • Yoneya, Naoki
  • Miyake, Takao

Abstract

The herein described subject matter relates in particular to a control device (150) and a method for controlling a fuel injector (101) attached to an internal combustion engine to allow reducing the deviation of the fuel amount between different injectors/different injections in ballistic operation, the control device (150) comprising a control parameter calculation unit (603), an injection pulse calculation unit (604), an injection pulse compensation unit (605) and at least one memory (607 or 608). The control parameter calculation unit (603) is configured to determine a target closing time for the fuel injector (101) based on a fuel amount to be injected into the internal combustion engine. If the determined target closing time is larger than a maximum closing time of the fuel injector (101) in ballistic operation, the injection pulse calculation unit (604) is configured to calculate a pulse duration for the injector (101) based on a characteristic curve of the fuel injector (101), and to output the calculated pulse duration to the fuel injector (101) for injecting the fuel amount into the internal combustion engine. If the determined target closing time is equal to or smaller than the maximum closing time in the ballistic operation, the injection pulse compensation unit (605) is configured to receive a set of parameters from the at least one memory (607 or 608), to calculate a pulse duration for the fuel injector (101) based on the determined target closing time and the set of parameters; and to output the calculated pulse duration to the fuel injector (101) for injecting the fuel amount into the internal combustion engine.

IPC Classes  ?

98.

SEMICONDUCTOR DEVICE

      
Application Number 18859480
Status Pending
Filing Date 2022-04-28
First Publication Date 2025-08-21
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Migita, Minoru
  • Takashima, Yuzuru

Abstract

Provided is a voltage sense IC that is mounted on a PCB substrate to detect a power supply voltage, the voltage sense IC being capable of reducing the area of the PCB substrate and reducing the types of mounted components. A semiconductor device includes: a first input terminal connected to one potential of a voltage to be monitored; a second input terminal connected to another potential of the voltage to be monitored; a voltage dividing resistor that divides a voltage between the first input terminal and the second input terminal; a polarity switching unit connected to the voltage dividing resistor; and an amplifier circuit connected to the polarity switching unit. The polarity switching unit switches polarities of a first path and a second path from the voltage dividing resistor provided between the voltage dividing resistor and the amplifier circuit to the amplifier circuit based on polarity setting information.

IPC Classes  ?

  • H03F 3/45 - Differential amplifiers
  • H05K 1/18 - Printed circuits structurally associated with non-printed electric components

99.

POWER CONVERSION DEVICE

      
Application Number 19049318
Status Pending
Filing Date 2025-02-10
First Publication Date 2025-08-21
Owner
  • Hitachi Astemo, Ltd. (Japan)
  • HONDA MOTOR CO., LTD. (Japan)
Inventor
  • Tanabe, Yoshiharu
  • Nakano, Kohei
  • Uneme, Takahiro
  • Wakabayashi, Ryuta

Abstract

The power conversion device includes a plurality of electronic units that form a power conversion circuit which steps up power supplied from a high voltage battery and outputs the power to a motor, a central plate that has a flat plate-shaped partition wall portion supporting the plurality of electronic units, and a motor output connector to which the motor is connected. A pre-step-up electronic unit that is an electronic unit that handles power before step-up is disposed above the partition wall portion, and the motor output connector and a post-step-up electronic unit that is an electronic unit that handles power after step-up are disposed below the partition wall portion.

IPC Classes  ?

  • B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
  • B60L 7/16 - Dynamic electric regenerative braking for vehicles comprising converters between the power source and the motor
  • B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
  • B60L 53/22 - Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
  • B60L 53/24 - Using the vehicle's propulsion converter for charging

100.

Image Recognition System

      
Application Number 18844469
Status Pending
Filing Date 2023-05-09
First Publication Date 2025-08-21
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kitayama, Akira
  • Ono, Goichi
  • Ito, Hiroaki

Abstract

An image recognition system according to one aspect of the present invention includes: a discrepancy information extraction unit that receives each of inference results of old and new machine learning models for the same input image, and outputs, when there is a discrepancy area in the two inference results, image information of the discrepancy area in the input image and information indicating presence or absence of detection of a point of interest in the discrepancy area by the new machine learning model; an object presence/absence determination unit that determines whether a point of interest is included in the image information of the discrepancy area and outputs a determination result; and a performance degradation determination unit that determines performance degradation of the new machine learning model compared with the current machine learning model based on the information indicating the presence or absence of detection of a point of interest in the discrepancy area by the new machine learning model and the determination result of the presence or absence of a point of interest in the image information of the discrepancy area.

IPC Classes  ?

  • G06V 10/776 - ValidationPerformance evaluation
  • G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
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