A motor control device includes a drive unit including three or more half bridges for driving a brushless motor; a separation switch that opens to cut off current flowing in at least a regenerative direction between the drive unit and a power source; and a control unit executing, when an event that requires the brushless motor to be turned off is detected: a step of setting a drive output of at least some of the three or more half bridges to ground level or turning off the at least some of the three or more half bridges; a step of opening the separation switch; and a step of turning off a drive output of the remaining half bridges of the three or more half bridges whose drive outputs are not turned off during a period when power flowing to a coil included in the brushless motor is positive or zero.
H02P 3/22 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by short-circuit or resistive braking
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 25/03 - Synchronous motors with brushless excitation
In order to improve the responsiveness of motor driving for an electric vehicle, this motor control device comprises: (A) a smoothing unit that smooths a drive operation amount related to an operation input for the driving of a motor; (B) a generation unit that, in accordance with an increase or decrease in the drive operation amount, generates a component for emphasizing the increase or decrease; and (C) a control unit that controls the driving of the motor on the basis of the results of combining the smoothed drive operation amount and the component.
[Problem] To safely turn off a brushless motor. [Solution] This motor control device has: (A) a drive unit including three or more sets of half bridges for driving a brushless motor which has two or more phases; (B) a separation switch disposed between the drive unit and a power supply and interrupting at least the current flowing in the regeneration direction by opening thereof; and (C) a control unit performing control so as to execute, when detecting an event indicating that the brushless motor should be turned off, a first step for setting the drive outputs of the half bridges of at least some sets of the three or more sets of half bridges to a ground level or turning off the drive outputs, a second step for opening the separation switch, and a third step for turning off the drive outputs of a set of half bridges, the drive outputs of which are not turned off among the three or more sets of half bridges, during a period in which power flowing to coils included in the brushless motor is positive or zero.
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
4.
Motor driving control apparatus and electric apparatus
This motor driving control apparatus has (A) an inverter unit configured to drive a motor; (B) a separation switch configured to separate a power source from the inverter unit; and (C) a controller configured to instruct the separation switch to separate the power source from the inverter unit and control the inverter unit to perform switching according to a speed and a braking target torque, upon detecting an event that braking should be performed without passing a regenerative current to the power source from the inverter unit. By introducing the separation switch that operates as described above, it becomes possible to perform control so as to consume the power by the motor itself without passing the regenerative current to the power source such as a battery.
H02P 21/22 - Current control, e.g. using a current control loop
H02P 21/06 - Rotor flux based control involving the use of rotor position or rotor speed sensors
B60L 50/20 - Electric propulsion with power supplied within the vehicle using propulsion power generated by humans or animals
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
B60L 9/18 - Electric propulsion with power supply external to the vehicle using AC induction motors fed from DC supply lines
B60L 7/22 - Dynamic electric resistor braking, combined with dynamic electric regenerative braking
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
B62M 6/50 - Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
[Problem] To generate braking torque without regenerative current flowing to a power supply. [Solution] This motor driving control device has: (A) an inverter unit that drives a motor; (B) a separation switch for electrically separating a power supply from the inverter unit; and (C) a control unit that, when an event in which braking should be executed without regenerative current flowing from the inverter unit to the power supply is detected, instructs the separation switch to separate the power supply from the inverter unit, and controls the inverter unit so as to perform switching in accordance with the speed and the target braking torque.
H02P 21/06 - Rotor flux based control involving the use of rotor position or rotor speed sensors
B60L 7/22 - Dynamic electric resistor braking, combined with dynamic electric regenerative braking
B60L 9/18 - Electric propulsion with power supply external to the vehicle using AC induction motors fed from DC supply lines
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
This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative 5 braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
B62M 6/50 - Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
B62M 23/02 - Transmissions characterised by use of other elementsOther transmissions characterised by the use of two or more dissimilar sources of power, e.g. transmissions for hybrid motorcycles
B60L 7/12 - Dynamic electric regenerative braking for vehicles propelled by DC motors
A motor driving apparatus includes a driving unit configured to drive a motor according to a torque inputted by a rotation input from a human being; and a controller configured to control driving of the driving unit according to a relationship between an accumulated value of first amounts that correspond to the rotation input from the human being and an accumulated value of second amounts that correspond to rotation of a rotating object driven by the motor. The controller may be further configured to cause the driving unit to suppress driving of the motor when an accumulated difference that is calculated by subtracting the accumulated value of the second amounts from the accumulated value of the first amounts is equal to or less than a predetermined threshold.
This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
B62M 23/02 - Transmissions characterised by use of other elementsOther transmissions characterised by the use of two or more dissimilar sources of power, e.g. transmissions for hybrid motorcycles
9.
MOTOR CONTROL DEVICE, MOTOR DRIVE CONTROL DEVICE, AND SIGNAL GENERATION METHOD
The motor drive control device in one embodiment of the present invention measures the time interval of an edge pulse, and on the basis of the measured time interval, determines the predicted value of the time interval until the next edge pulse is output. A signal having a frequency that is a predetermined multiple of the predicted value is generated on the basis of the predicted value, and an output value counting said signal is an interpolated phase signal. A continuous drive baseline waveform is generated on the basis of the interpolated phase signal, and the duty ratio of PFM modulation is generated on the basis of the drive baseline waveform. As a result, sine wave driving of a brushless motor is performed without using a current sensor or a rotary encoder.
A motor-driving control device according to one embodiment of the present invention drives a brushless motor, wherein the motor-driving control device is provided with an inverter circuit for supplying a drive voltage to the brushless motor by controlling the on/off state of a switching element, an energization-angle-control unit for setting the energization angle so as to increase in accordance with the frequency of the drive voltage, and a drive-control unit for driving the brushless motor by causing a drive signal for the energization angle set by the energization-angle-control unit to be outputted to the inverter circuit, thereby suppressing the generation of vibration and/or noise when switching between an intermittent energization drive system and a continuous energization drive system.
The present motor drive control device has: (A) a drive unit for driving a motor; and (B) a regenerative control unit for controlling the drive unit so that regenerative braking force is generated in accordance with a vehicle body acceleration, a vehicle body speed, and a pedal rotation conversion speed obtained from a pedal rotation.
B62M 23/02 - Transmissions characterised by use of other elementsOther transmissions characterised by the use of two or more dissimilar sources of power, e.g. transmissions for hybrid motorcycles
A motor drive control apparatus for performing motor control that is stable and has a good efficiency includes: a speed processing unit that generates a first value by converting a second value corresponding to a current speed into a duty ratio; a torque processing unit that generates a third value by converting a fourth value corresponding to a target torque into the duty ratio; and a drive unit that controls switching by a switch included in a complementary switching amplifier by an average duty ratio corresponding to a sum of the first value and the third value to drive a motor connected to the complementary switching amplifier.
H02P 7/28 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
B60L 11/00 - Electric propulsion with power supplied within the vehicle (B60L 8/00, B60L 13/00 take precedence;arrangements or mounting of prime-movers consisting of electric motors and internal combustion engines for mutual or common propulsion B60K 6/20)
H02P 6/08 - Arrangements for controlling the speed or torque of a single motor
This motor driving control apparatus includes: a smoothing processing unit that executes smoothing processing using values of pedal input torque at plural points to calculate a first smoothed torque value; an insufficiency output unit that obtains a rate of points at which input of the pedal input torque is insufficient among the plural points; an assist torque calculating unit that performs calculation processing of mixing the first torque value calculated by the smoothing processing unit and the pedal input torque in accordance with output of the insufficient output unit to calculate assist torque; and a driving processing unit that performs processing to drive a motor using the assist torque calculated by the assist torque calculating unit.
B60L 11/00 - Electric propulsion with power supplied within the vehicle (B60L 8/00, B60L 13/00 take precedence;arrangements or mounting of prime-movers consisting of electric motors and internal combustion engines for mutual or common propulsion B60K 6/20)
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
B62M 6/50 - Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
An appropriate motor control in accordance with a pedal operation of a driver is to be achieved. A motor drive control device according to the present invention is a motor drive control device for an electric power-assisted vehicle that has one-way clutches respectively provided for a motor drive system and for a pedal drive system. The motor drive control device according to the present invention includes: a first calculating part that calculates a pedal rotation conversion speed that is converted from a pedal rotation; and a second calculating part that calculates a second target torque for a motor based on the pedal rotation conversion speed, during a period in which a first target torque derived from a pedal torque is not detected.
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
B60W 10/02 - Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
B60L 7/14 - Dynamic electric regenerative braking for vehicles propelled by AC motors
B60L 11/00 - Electric propulsion with power supplied within the vehicle (B60L 8/00, B60L 13/00 take precedence;arrangements or mounting of prime-movers consisting of electric motors and internal combustion engines for mutual or common propulsion B60K 6/20)
B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
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
A motor drive control device of an electric power-assisted vehicle that has a gear shifter and a motor, and in which a first ratio of the number of drive rotations in the motor to the number of drive rotations of a pedal changes based on changes in a gear ratio in the gear shifter, includes: a gear ratio obtaining part that obtains the gear ratio of the gear shifter; and a calculating part that calculates an assist torque, which is a target value for a drive torque of the motor, from the pedal input torque based on the gear ratio obtained by the gear ratio obtaining part.
B60L 11/00 - Electric propulsion with power supplied within the vehicle (B60L 8/00, B60L 13/00 take precedence;arrangements or mounting of prime-movers consisting of electric motors and internal combustion engines for mutual or common propulsion B60K 6/20)
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
This motor drive control device is provided with: a smoothing processing unit for calculating a first smoothing torque value by performing a smoothing process by using values of the torque inputted by a pedal at a plurality of points in time; a deficient rate outputting unit for obtaining the rate of points of time, from among the plurality of points of time, in which the input torque inputted from the pedal is insufficient; an assist torque calculating unit for calculating an assist torque by performing a computation process in which the first smoothing torque value calculated by means of the smoothing processing unit and the torque inputted by the pedal are mixed in accordance with the output from the deficient rate outputting unit; and a drive processing unit for driving a motor by using the assist torque calculated by means of the assist torque calculating unit.
A motor drive control device for efficiently and stably controlling a motor is provided with: a speed processing unit for generating a second value by converting a first value corresponding to the current speed into a duty cycle; a torque processing unit for generating a fourth value by converting a third value corresponding to the target torque into a duty cycle; and a drive unit for driving a motor connected to a complimentary switching amplifier by controlling the switch in the complimentary switching amplifier by means of the average duty cycle corresponding to the sum of the second value and the fourth value.
The embodiment of the present invention prevents a motor drive wheel from idling. Specifically, the motor drive control device of the present invention is provided with: a first calculating unit for calculating a first vehicle speed of a motor drive wheel driven by means of a motor on the basis of the torque inputted from a pedal; a second calculating unit for calculating a second vehicle speed of a pedal drive wheel driven by means of the torque inputted from a pedal; and a signal outputting unit for outputting a control signal for stopping or restricting the driving operation of the motor when the first vehicle speed is faster than the second vehicle speed.
Provided is an overflow suppress method which can effectively prevent image degradation. A fundamental waveform and a detail are extracted from an input RGB signal. A suppress gain generation unit (614) generates a suppress gain from the extracted fundamental waveform. Multipliers (612a, 612b) multiply the generated suppress gain by the fundamental waveform and the detail. An adder (626) mixes and outputs the multiplication result. Alternatively, an equalization process is performed as follows. That is, a suppress gain is generated from a low-frequency component fundamental waveform obtained from the input RGB signal which has passed through a low-pass filter (622) and the input itself is multiplied by the suppress gain to obtain an output.
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
A backlight is lit by a high-luminance pulse (high-luminance portion) while a non-illuminated section is lit by a low-luminance pulse (low-luminance portion) using an in-frame full duty. Thus, a burst pulse has a composite configuration formed by a high-luminance portion and a low-luminance portion, so that a high-luminance image having a clear contour can be superposed on a video having a motion blur caused by a low-luminance high duty. This reduces degradation of the luminance in a high-luminance image and reduces an abnormal noise.
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
H04N 5/66 - Transforming electric information into light information
patents
