Methods and systems for building a dual sump transmission are described. In one example, a passage may extend from a second sump to a first sump so that fluid may be drained from the second sump and the first sump via removing a sole plug. In another example, an extension rod may extend from the first sump to the second sump so that fluid may be drained from the first sump and the second sump via removing the extension rod.
The present disclosure relates to an assembly for a steering system of a vehicle, the assembly comprising an axle part having a coupling recess, and a steering cylinder having a coupling projection. The coupling projection is received in the coupling recess and an interference fit is formed between the coupling projection and the coupling recess.
An electric driveline includes a planetary gear set comprising a ring gear, a sun gear, a planet carrier coupled to the ring gear and the sun gear, a first motor including a first output shaft coupled to the ring gear, a second motor including a second output shaft coupled to the sun gear, and a controller with instructions stored in memory thereof that when executed cause the controller to adjust an operational state of the first motor and selectively couple the ring gear to a static housing via a clutch based on a speed of the planet carrier.
The present disclosure relates to a support assembly for a wheel end reduction drive, the support assembly comprising an axle member and a support member engaged with one another via a plurality of axially extending tooth members and recesses; to an axle assembly including said support assembly, and an epicyclic wheel end reduction drive supported on the support assembly; and to an electric vehicle including an electric motor, and said axle assembly, wherein the electric motor is drivingly engaged or drivingly engageable with the epicyclic wheel end reduction drive.
Systems and methods are provided for a clutch with braking mechanism comprising: a dual-position shifting sleeve in face sharing contact with a radially aligned spring loaded detent, wherein the shifting sleeve includes a first groove adapted to receive the detent in a high speed position and a second groove adapted to receive the detent in a low speed position; and a first axially aligned piston and a second axially aligned piston adapted to actuate a first brake plate and a second brake plate, respectively, when the shifting sleeve is in an intermediate position between the high speed position and the low speed position.
B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
6.
RADIAL HOLE ARRANGEMENT INTERCEPTING A ROTATIONAL LUBRICATION LINE PARALLEL TO AND NON-COAXIAL WITH THE ROTATIONAL AXIS
A lubrication system for a transmission, comprising: a shaft of the transmission having a fluid passage, where the fluid passage is centered on an axis that is parallel and non-coaxial to a rotational axis of the shaft, where the shaft is centered on the rotational axis; and at least two axially spaced apart radial channels, where the two axially spaced apart radial channels are fluidly communicating with the fluid passage and inclined at different angles with respect to a plane that cross-sections the shaft in a longitudinal direction with respect to the rotational axis, where the plane includes the rotational axis and the axis of the fluid passage, where the different angles decrease in size for each axially spaced apart radial channel that is further from an inlet relative to a previous spaced apart radial channel.
Methods and systems for shifting a transmission that includes a dog clutch are described. In one example, the transmission may be coupled to an electric machine and a rotational speed of the electric machine may be adjusted to reduce a speed differential between rotating transmission components. A position of a shifter actuator may be adjusted according to an estimate of when the speed differential is equal to a predetermined value.
Systems and methods are disclosed for a valveless, mechanical, pressure regulating pump for use in transmissions and other mechanical systems. The pressure regulating pump may comprise: a casing; a pump body comprising an outer cylindrical portion and an inner cylindrical portion, wherein the outer cylindrical portion includes one or more inlet ports and the inner cylindrical portion includes one or more outlet ports; a piston interposed between the outer cylindrical portion and the inner cylindrical portion and configured to move axially, the piston and the inner cylindrical portion defining a chamber; a first spring at least partially interposed between the piston and the inner cylindrical portion; and a second spring interposed between the casing and the pump body, wherein the pump body is configured to move axially relative to the casing and compress the second spring when a pressure in the chamber exceeds a pre-load of the second spring.
F04B 9/06 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means including spring- or weight-loaded lost-motion devices
F04B 9/04 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
Methods and systems for a drive axle. The drive axle includes a central portion including a differential assembly, the differential assembly including axle shaft side gears with a plurality of fins in contact with lubricant of an axle housing, and an arm portion including axle shafts, the arm portion including an inner inclined surface to guide oil toward the central portion and a plurality of holes distributed axially.
Methods and systems for shifting a multi-gear step ratio transmission that includes a dog clutch are described. In one example, rotational positions of different transmission components are measured by tone wheels and a shifter actuator position is adjusted in response to a phase angle difference between the rotational positions of the different transmission components.
F16H 3/00 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
F16H 3/12 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
F16H 61/688 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
A system for cooling a power take-off (PTO) unit, comprising: a heat sink positioned in a lubricant sump of the PTO unit, the lubricant sump of the PTO unit fluidly coupled to an internal space of an axle; a lubricant funnel positioned to direct lubricant to the heat sink; and a baffle positioned adjacent a rotating gear of the PTO unit and configured to direct lubricant to the lubricant funnel.
Systems are provided for a limited slip differential (LSD). The LSD comprises a two-piece differential case, an intermediate floating piece positioned in an interior of the two-piece differential case and configured to slide axially therein. The LSD, further comprises a first side gear and a second side gear meshed with gears of the intermediate floating piece, a first disc spring mounted on the first side gear and a second disc spring mounted on the second side gear, a first clutch pack mounted on the first side gear and positioned between the first disc spring and a lip of the first side gear, and a second clutch pack mounted on the second side gear and positioned between the second disc spring and a lip of the second side gear, and a shim mounted on the second side gear and positioned axially between the second disc spring and the two-piece differential case.
F16H 48/22 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
F16H 48/40 - Constructional details characterised by features of the rotating cases
Methods and systems are provided for a lubrication system. The lubrication system includes a bulkhead arranged around an axle and in contact with a seat of a central housing, the bulkhead comprising an entrance diameter larger than an exit diameter, wherein the entrance diameter is positioned near a pinion head bearing and the exit diameter is positioned near a pinion tail bearing.
A gearbox including: a fixed housing; a first wheel housed in the fixed housing; a second wheel housed in the fixed housing; a duct, where the duct is fixed to the gearbox; and a baffle interposed between the first wheel and the second wheel, wherein the duct is configured to transport a fluid to the first wheel, wherein the baffle is configured to transport fluid from the first wheel to the second wheel, and wherein the baffle is fixed to the fixed housing.
The present disclosure relates to a rotary joint assembly for providing a tire inflation system in a vehicle, the rotary joint assembly comprising:
at least a first air passage configured to transmit air between a first vehicle component of the vehicle and a second vehicle component of the vehicle, wherein the first vehicle component and the second vehicle component are rotatable relative to one another about a rotation axis,
at least a first air seal for at least partially sealing the first air passage, and
at least a first lubricant seal for sealing the first air seal from a lubricant,
wherein the first air seal is arranged at a first seal carrier and the first lubricant seal is arranged at a second seal carrier, wherein the first seal carrier and the second seal carrier are non-integrally formed.
F16L 27/08 - Adjustable jointsJoints allowing movement allowing adjustment or movement only about the axis of one pipe
B60C 23/00 - Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehiclesArrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanksTyre cooling arrangements
16.
SYSTEM AND MANUFACTURING METHOD FOR ASSEMBLING A LAMINATION STACK WITH A TWO-COMPONENT ADHESIVE AT LOWER TEMPERATURES
Methods and systems are disclosed for increasing rotor rigidity without compromising magnetic parameters of a plurality of permanent magnets by manufacturing a lamination stack using a two-component adhesive. In one example, a method includes for each lamination of a plurality of laminations, applying a first component of a two-component adhesive to one side of a lamination of a rotor and a second component to an opposite side of the lamination, stacking the plurality of laminations such that keyways and cavities of each of the plurality of laminations are aligned to assemble the lamination stack, inserting and positioning magnets in slots of the lamination stack and binding the magnets in their respective slots with glue, and applying pressure and temperature below demagnetization temperature of the magnets to bind the plurality of laminations together.
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
Methods and systems for a barrel cam actuator assembly. The barrel cam assembly, in one example, includes a barrel cam including a first track and a bearing that is positioned at a side of the barrel cam. The barrel cam assembly further includes a spring that are is positioned between a housing and the bearing, where the bearing and the spring are configured to provide axial compliance to the barrel cam.
F16H 63/18 - Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism the final actuating mechanism comprising cams
F16H 61/28 - Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
The present disclosure relates to a guide assembly, comprising: an outer guide member; an inner guide member at least partially enclosed by the outer guide member, the outer guide member and the inner guide member delimiting a space therebetween; an elastic member disposed in the space, enclosing the inner guide member and being compressible along an axial direction; a support member; and an actuation member configured to axially compress the elastic member against the support member. The inner guide member comprises an axially extending guiding surface facing the elastic member for restricting movement of the elastic member in a radial direction perpendicular to the axial direction. A length of an axial overlap between the guiding surface of the inner guide member and the elastic member is at least two thirds of an axial length of the elastic member.
Systems and methods for a drive axle. The drive axle system, in one example, includes a displacement sensor coupled to a pinion input flange and configured to generate axial displacement data corresponding to the pinion input flange, where the pinion input flange is directly coupled to an angled pinion gear. The drive axle system further includes a controller configured to determine a torque at the pinion input flange based on the axial displacement data.
A method for controlling an engagement of a dog clutch in an electrified drivetrain, comprising: locking a shaft of a transmission; positioning an actuator of the transmission at a prescribed position; commanding an electric machine to rotate at a speed; and updating the engagement threshold position when the electric machine stalls based on the prescribed position of actuator.
The present disclosure relates to a steering sensor assembly for sensing a steering angle between a stationary component and a rotatable component rotatably mounted on the stationary component about a steering axis. The steering sensor assembly comprises a sensor at least partially fixed with respect to the steering axis, and a sensor counterpart movable about the steering axis. The sensor and the sensor counterpart are arranged distanced from the steering axis. The present disclosure further relates to a steering sensor system including said steering sensor assembly.
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01D 5/16 - 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 resistance
G01D 5/20 - 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
23.
SHIPPING COVER ASSEMBLY FOR A TRANSMISSION HOUSING
The present disclosure relates to a shipping assembly comprising a transmission housing forming an open cavity, a shipping cover assembly, and a gear. The shipping cover assembly comprises a cover portion connected to the transmission housing and closing the open cavity of the transmission housing, an inner side of the cover portion facing the transmission housing, and a stub shaft portion protruding from the inner side of the cover portion and into the open cavity of the transmission housing. The gear is received on the stub shaft portion of the shipping cover assembly.
B65D 85/68 - Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
B65D 81/05 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
A fluid distribution system is disclosed herein for mechanical systems, such as vehicle transmissions with forced lubrication. The fluid distribution system may comprise: a fluid distribution system, comprising: a fluid distribution device positioned in a hollow shaft comprising a coaxial passage and a plurality of radial channels, the fluid distribution device comprising: a cartridge coaxial with the hollow shaft, comprising a first circular side having a coaxial inlet opening and a second circular side having a plurality of tube openings positioned equidistantly from an axis of rotation of the hollow shaft; and a plurality of pipes, each pipe extending from one of the plurality of tube openings parallel to the axis of rotation of the hollow shaft, where a length of each pipe corresponds to axial positions of the plurality of radial channels axially spread apart along the hollow shaft.
Systems and methods for an electric drive system. The electric drive system, in one example, includes a gearbox that includes a first shaft rotationally coupled to a higher voltage electric motor and a second shaft rotationally coupled to a lower voltage electric generator and motor assembly. The electric drive system further includes an inverter electrically coupled to the higher voltage electric motor and an energy storage device and in such an example, the lower voltage electric generator and motor assembly is configured to rotationally couple to an auxiliary device.
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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
26.
HIGH EFFICIENCY MODULAR CARTER ASSEMBLED COAXIALLY TO EXISTING HOLES
An axle comprising: a central housing; an axle arm fastened to the central housing via a plurality of first fasteners; and an oil baffle fixed to the central housing via at least one fastening element that is coaxial with at least one fastener from the plurality of first fasteners and at least one hole from a plurality of pre-existing holes of the central housing.
Methods and systems for a transmission. In one example, the transmission system includes a first electric motor that is rotationally coupled to a first shaft with a first gear idly mounted thereto and a second electric motor that is rotationally coupled to a second shaft with a second gear idly mounted thereto. The transmission system further includes an intermediate shaft with a third gear fixedly coupled thereto, a first clutch configured to selectively rotationally couple the first gear and the first shaft, and a second clutch configured to selectively rotationally couple the second gear and the second shaft.
F16H 3/00 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
Systems are provided for a master drive unit. In one example, a system may include a master drive unit (MDU) comprising a hypoid pinion coupled to a hypoid gear, wherein the hypoid pinion comprises an end supported by a bearing arranged in a housing projection of a housing of the MDU.
F16H 1/14 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising conical gears only
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
F16H 1/12 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
F16H 1/24 - Toothed gearings for conveying rotary motion without gears having orbital motion involving gears essentially having intermeshing elements other than involute or cycloidal teeth
F16H 57/021 - Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
F16H 57/038 - Gearboxes for accommodating bevel gears
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
Systems are provided for a steering system. In one example, a steering system includes a hydraulic cylinder configured to adjust a steering angle of wheels coupled to an axle, and a pair of hydraulic ports, each including an inboard section in scaling engagement with an outer circumference of a cylinder tube.
B62D 5/18 - Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by power transmitting means
Methods and systems for emulating a speed sensor with current output via a hardware-in-the-loop (HIL) system are described. In one example, the HIL system outputs a voltage signal that is converted into two current signals that may be interpreted into speed and direction information. The current output may decrease signal sensitivity to electrical noise.
Methods and systems for an electric vehicle (EV). The EV system includes an electric drive axle that includes a first electric motor configured to transfer mechanical power to a first drive wheel, a second electric motor configured to transfer mechanical power to a second drive wheel, and a motor coupling clutch configured to selectively rotationally couple the first electric motor to the second electric motor. The EV system further includes a controller configured to selectively rotationally couple the first electric motor to the second electric motor via operation of the motor coupling clutch based on vehicle load.
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 6/52 - Driving a plurality of drive axles, e.g. four-wheel drive
B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
Methods and systems for an electric vehicle (EV). The EV system, in one example, includes a first electric drive axle and a second electric drive axle that each include a pair of electric motors and a motor coupling clutch. The EV system further includes a controller configured to selectively engage one or both of the motor coupling clutches based on vehicle load.
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
B60K 17/356 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
B60K 23/04 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
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
Methods and systems are provided for a lubricant distribution assembly comprising a rotating component with a recessed circumferentially surrounded by a radially outer section, the radially inners side of which forms a surface of an undercut groove. The lubricant distribution assembly further includes a lubricant sump separated from the rotating component by a wall, a hollow tube that delivers lubricant from the lubricant sump to the lubricant distribution assembly and a lubricant deflector positioned within an upper portion of the lubricant distribution assembly and which lies in a plane that is parallel to a first axial side of the rotating component.
Methods and systems are provided for utilizing a parking brake in conjunction with negative torque from an electric motor during vehicle braking. In one example, a method may include applying the parking brake in conjunction with negative torque from the electric motor, until the vehicle speed reduces to a speed threshold, and then releasing the parking brake.
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
35.
Locking differential assembly and operating method
Systems and methods for a locking differential assembly. The locking differential assembly, in one example, includes an input gear configured to rotationally couple to an upstream component, a case coupled to the input gear, and a locking clutch configured to, in an engaged configuration, lock rotation of the case and a side gear. The locking differential assembly further includes an actuation system configured to engage and disengage the locking clutch based on a steering angle.
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
F16H 48/06 - Differential gearings with gears having orbital motion
F16H 48/20 - Arrangements for suppressing or influencing the differential action, e.g. locking devices
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/32 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using fluid pressure actuators
B60K 17/35 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds including arrangements for suppressing or influencing the power transfer, e.g. viscous clutches
B60K 23/04 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
The present disclosure relates to a brake assembly comprising a stationary portion forming a hollow for receiving a brake pack therein, and a stop member partially received in or configured to be partially received in the hollow along an axis to form a brake pack stop, wherein the stop member has a plurality of axially spaced coupling features for selectively coupling the stop member to the stationary portion at either one of two or more different axial positions of the stop member relative to the stationary portion.
The present disclosure relates to a steering system for a vehicle, the steering system including an axle and a steering lever. The steering lever is fixedly connected to a separate upper kingpin member which is mounted in a rotatable manner relative to the axle.
The present disclosure relates to a device for measuring a flow rate of a liquid, comprising a flow channel, a valve for selectively opening and closing the flow channel, and a measuring unit configured to determine, after the valve has closed the flow channel, a time Δt which it takes a liquid fed to the flow channel above the valve to rise to an upper predetermined liquid level in the flow channel.
A stand-alone block, comprising: a hydraulic cylinder and one or more valves, wherein one or more adduction lines between the valve and the hydraulic cylinder are configured to allow the hydraulic cylinder to be self-purging. The hydraulic cylinder drives and guides a hollow piston, wherein a pass-through hole of the piston is configured to host a rod axially aligned with respect to a centerline of the hollow piston, wherein the hollow piston has a radial clearance formed between an inner surface of the hollow piston and the rod.
Methods and systems for an axle are described. The axle may be a steering axle that is coupled to wheels that may move to change a steering angle of a vehicle. In one example, the axle includes two bearings that are arranged similarly so as to reduce a height of an axle. The two bearings may be tapered wheel bearings so that vertical and lateral wheel loads may be supported via an actual total of two bearings per wheel.
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
F16C 33/66 - Special parts or details in view of lubrication
41.
System and method for seamless shifting in a dual motor transmission with minimal gears
Methods and systems for a dual motor transmission system that includes an intermediate shaft oriented parallel to both of a first shaft arranged with a first gear mesh, a third gear mesh, and a first low friction engaging device located between the first gear mesh and the third gear mesh and a second shaft arranged with a second gear mesh, a fourth gear mesh, and a second low friction engaging device located between the second gear mesh and the fourth gear mesh, a first electric motor coupled to the first shaft to enable a first reduction ratio and second reduction ratio of the first electric motor between the first shaft and the intermediate shaft, and a second electric motor coupled to the second shaft to enable a first reduction ratio and second reduction ratio of the second electric motor between the second shaft and the intermediate shaft.
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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
F16H 61/688 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
Methods and systems for a mechanically driven pump are provided. The mechanically driven pump may apply a piston simultaneously to operate as a guillotine blocking valve and a component to transfer motive force. A spring may apply a force to the piston to oppose a force that is applied to the piston via a cam lobe. The mechanically driven pump exhibits a differential pressure at a calibrated orifice during two working phases of the pump (expansion and compression), which provides for a non-zero volumetric efficiency of the mechanically driven pump.
F04B 9/04 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
F04B 53/14 - Pistons, piston-rods or piston-rod connections
F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
43.
ANTI-VIBRATION SUPPORT FOR AN EXTERNAL SPRING APPLIED HYDRAULIC RELEASE BRAKE ASSEMBLY
Examples of a brake assembly including an anti-vibration support to reduce vertical oscillation of a brake actuator are disclosed herein. In one example, a brake assembly includes a spring-applied, hydraulic release (SAHR) brake actuator coupled to a caliper and cantilevered over an axle housing, and an anti-vibration bracket that terminates at the SAHR brake actuator at a first end and extends under the SAHR brake actuator at an angle relative to the SAHR brake actuator.
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
44.
SYSTEMS AND METHODS FOR AN ELECTRIC STEERING SYSTEM
Methods and systems are provided for a steer-by-wire system. In one example, a steer-by-wire system comprises an electric motor coupled to a steering axle via a bevel gear set, where a rotor of the electric motor is perpendicular to the steering axle, and the bevel gear set comprises a first bevel gear and a second bevel gear. The steer-by-wire system includes an overload protection arrangement, where the second bevel gear is normally coupled to a ball screw nut via a plurality of locking pins, the plurality of locking pins disengaging from the second bevel gear and allowing slipping of the ball screw nut in response to an external impact load acting on the ball screw nut exceeding a threshold.
A rotary joint assembly for a tire inflation system is provided. The assembly includes an air seal for sealing an air passage, a lubricant seal for sealing the air seal from a lubricant, and a leakage reception space delimited by the air seal and the lubricant seal and fluidically isolated from the atmosphere.
Methods and systems are provided for a lubricant distribution assembly comprising a rotating component with a recessed circumferentially surrounded by a radially outer section, the radially inners side of which forms a surface of an undercut groove. The lubricant distribution assembly further includes a lubricant sump separated from the rotating component by a wall, a hollow tube that delivers lubricant from the lubricant sump to the lubricant distribution assembly and a lubricant deflector positioned within an upper portion of the lubricant distribution assembly and which lies in a plane that is parallel to a first axial side of the rotating component.
A gear box, including a gear box for a vehicle system is provided, and methods for assembling the gear box are provided. The gear box includes a stationary housing and one or more rotating members, a multilayer sealing arrangement formed between and sealing a fluid path between the one or more rotating members and the stationary housing, the multilayer sealing arrangement including a labyrinth seal, a first cassette seal, and a mechanical face seal, wherein the one or more rotating members includes a rotating hub, and the labyrinth seal is formed between the rotating hub and the stationary housing, whereby the rotating hub overlaps with the stationary housing.
Systems are provided for a driveline. In one example, a system includes a first electric motor coupled to a first two-stage gear assembly, a second electric motor coupled to a second two-stage gear assembly and separated from the first electric motor, wherein the first and second two-stage gear assemblies comprise a first stage helical gear assembly and a second stage helical planetary reduction assembly.
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
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
B62D 11/04 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
F16H 37/04 - Combinations of toothed gearings only
Methods and systems are provided for a lubricating apparatus for a gearbox. In one example, an apparatus may include a curved shroud enclosing a portion of a gear, a first side oil collector and a second side oil collector, an oil reservoir having a first end fluidly coupled to the first side oil collector and a second end fluidly coupled to the second side oil collector, and a metering orifice fluidly coupling the oil reservoir to the curved shroud. The oil reservoir further includes at least two U-turns between the first end and the second end, and walls of the oil reservoir having multiple cavities.
Methods and systems are provided for coupling mechanism of a wheel. The coupling mechanism of a wheel includes a screw with a threaded portion, a block with an internal threaded portion, and a coupler mechanically coupled to the screw. The coupler has a radially inner surface configured to couple with a drive shaft and a radially outer surface configured to couple with a spindle, where the screw is configured to engage the coupler with the drive shaft when actuated in a first direction and disengage the coupler from the drive shaft when actuated in a second direction, opposite the first.
Methods and systems for generating power at a vehicle axle to supply sensors and/or actuators are described. In one example, the power is generated via a dynamo that converts rotation of an axle component into electrical energy. The electrical energy may be supplied to a battery, vehicle sensors, and vehicle actuators so that wires may not be routed between a controller and the axle.
The present disclosure relates to a brake-wear monitoring system comprising a housing, a brake piston movable relative to the housing along a piston axis, and a sensor assembly configured to produce a sensor signal indicative of an axial position of the brake piston relative to the housing.
The present disclosure relates to a drive axle assembly, comprising:
a differential assembly including a pinion gear and a crown gear, the pinion gear configured to drive the crown gear and the crown gear rotatable about a rotation axis, and
a lubricant baffle,
wherein the lubricant baffle axially overlaps with the pinion gear and faces a toothed front face of the crown gear, and
wherein the lubricant baffle has, with respect to the rotation axis of the crown gear, an axial dimension, a radial dimension and a circumferential dimension, the axial dimension being smaller than the radial dimension and the circumferential dimension.
The present disclosure further relates to a set including two drive axle assemblies of the aforementioned type.
The present disclosure relates to a lubricant collection assembly, comprising:
a lubricant sump, and
at least one guide member having a surface configured to guide a lubricant toward and/or into the lubricant sump along the surface, wherein the surface includes a plurality of protrusions and/or deepenings to slow a flow of lubricant toward the lubricant sump.
Various systems and methods are provided for wet brake systems for vehicles. In one embodiment, a wet brake system for a vehicle includes a drive shaft, a housing including a brake compartment and a reservoir axially offset from the brake compartment along the drive shaft, a brake plate assembly including an end plate arranged within the brake compartment, a lower channel formed between the end plate and the housing and arranged at a drain end of the housing, and an upper channel formed between the end plate and the housing, opposite to the lower channel across the drive shaft. Coolant/lubricant within the housing, such as oil, may flow out of the brake compartment during conditions in which the drive shaft is rotated, and may flow into the brake compartment during conditions in which the drive shaft does not rotate or is relatively stationary.
A lubrication assembly and operating method are provided herein. The lubrication assembly includes a rotating component an axial recess positioned on an axial side of the rotating component, and a lubricant conveyor that remains stationary relative to the rotating component and extends into the axial recess to form a gap between axial recess and the first lubricant conveyor. The lubricant conveyor directs a lubricant toward the axial recess during rotation to generate a lubricant spray focused in a targeted direction.
Methods and systems for a hydromechanical transmission. In one example, a vehicle system includes a hydromechanical transmission with a power-take off (PTO) that is designed to rotationally couple to an implement. The vehicle system further includes an engine coupled to the hydromechanical transmission and a power-management control unit configured to, during a drive or coast condition, cause the power-management control unit to: determine a net available power for the hydromechanical transmission and manage a power flow between the hydromechanical transmission, a drive axle, and the implement based on the net available power.
B60K 17/10 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of fluid gearing
B60K 6/12 - Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
B60K 17/28 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
F16H 61/06 - Smoothing ratio shift by controlling rate of change of fluid pressure
F16H 61/4096 - Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
F16H 61/00 - Control functions within change-speed- or reversing-gearings for conveying rotary motion
F16H 61/12 - Detecting malfunction or potential malfunction, e.g. fail safe
A system and method for lubrication system are provided. The lubrication system includes a floater container including a floater compartment that contains a buoyant floater, where the floater container is coupled to a housing bulkhead and where the floater container includes an inlet opening in a first wall that is off-axis from a horizontal plane and forms an angle with a second wall. Further, the housing bulkhead includes an outlet opening positioned lower than the inlet opening and provides fluidic communication between the floater compartment and a rotating component compartment that contains a rotating component.
Methods and systems for transmission control are provided. In one example, a transmission system operating method includes maintaining a displacement set-point of a variable displacement hydraulic motor in a hydrostatic assembly within a working zone, where at least a portion of a boundary of the working zone is determined based on a kinematic constraint of the hydrostatic assembly. The transmission system includes the hydrostatic assembly that includes the variable displacement hydraulic motor that is hydraulically coupled in parallel with a variable displacement hydraulic pump and a gearbox mechanically coupled to the hydrostatic assembly and including one or more clutches.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
The present document relates to a tire inflation system having a non-rotatable element and a rotatable element mounted at the non-rotatable element, a fluid path extending through a cavity of the non-rotatable element and through a cavity of the rotatable element for passing a fluid from the non-rotatable element to the rotatable element. At least one of the rotatable element and the non-rotatable element is movable in an axial direction with respect to the other between a standard position and an inflation position, and is configured to slide towards the inflation position against the bias of a return spring, in response to a fluid pressure being provided in the fluid path. In the inflation position the gasket is in sealing engagement with the contact area.
B60C 23/00 - Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehiclesArrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanksTyre cooling arrangements
61.
CENTRAL TIRE INFLATION SYSTEM WITH WHEEL HUB INCLUDING INTEGRATED SEALING SURFACE
Various systems and methods are provided for a central tire inflation system with a wheel hub including an integrated sealing surface. In one embodiment, a system comprises: a vehicle wheel hub including a gas passage and a sealing surface shaped to engage directly with a seal to fluidly couple the gas passage to a counterpart gas passage of a stationary vehicle component. The sealing surface may be formed integrally with the vehicle wheel hub and shaped to engage directly with the seal with no other components disposed between the sealing surface and the seal.
B60C 23/00 - Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehiclesArrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanksTyre cooling arrangements
A guide assembly, comprising: an outer guide member; an inner guide member at least partially enclosed by the outer guide member, the outer guide member and the inner guide member delimiting a space therebetween; an elastic member disposed in the space, enclosing the inner guide member and being compressible along an axial direction; a support member; and an actuation member configured to axially compress the elastic member against the support member. The inner guide member comprises an axially extending guiding surface facing the elastic member for restricting movement of the elastic member in a radial direction perpendicular to the axial direction. A length of an axial overlap between the guiding surface of the inner guide member and the elastic member is at least two thirds of an axial length of the elastic member.
A drive axle assembly includes a drive axle housing and a differential disposed within the drive axle housing, the differential including a pinion gear configured to be driven by an input shaft, a crown gear driven by the pinion gear to rotate about a rotation axis, and a plurality of differential gears driven by the crown gear and configured to be drivingly coupled to a first and a second driven shaft. The drive axle assembly further includes a first lubricant baffle fixed to the drive axle housing and having a first axial end portion facing a toothed front face of the crown gear. And the drive axle assembly includes an exchangeable axial spacer to set an axial position of the first axial end portion of the first lubricant baffle.
The present disclosure relates to a steering joint assembly comprising an axle beam, a first king pin rigidly mounted on the axle beam, a steering knuckle, and a first spherical plain bearing rotatably connecting the first king pin to the steering knuckle.
The present disclosure further relates to a positioning assembly, such as for positioning a brake piston. The positioning assembly comprises a support member extending along an axis, a first compression-loaded member, and a second compression-loaded member, wherein the first compression-loaded member and the second compression-loaded member are axially supported on or configured to be axially supported on the support member. The present disclosure further relates to a brake piston assembly including said positioning assembly.
F16D 65/54 - Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
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
Methods and systems for a hydromechanical transmission in a vehicle are provided herein. In one example, the transmission system includes a hydrostatic assembly with a hydraulic pump in fluidic communication with a hydraulic motor. The transmission system further includes a controller configured to selectively transition between a torque control mode and a speed control mode of the hydrostatic assembly while the vehicle is on a slope.
The present disclosure relates to methods and systems for 3D printing. In one example, a 3D multi-layer structure is printed with a cavity distributed over multiple layers of a first filamentary material and shaped as a double-headed rivet. Further, the cavity is filled with a second filamentary material in a vertical direction to form a filament-based rivet, the vertical direction perpendicular to the plane of the multiple layers.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B33Y 70/00 - Materials specially adapted for additive manufacturing
B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
Methods and systems for transmission control are provided. In one example, a transmission system operating method includes maintaining a displacement set-point of a variable displacement hydraulic motor in a hydrostatic assembly within a working zone, where at least a portion of a boundary of the working zone is determined based on a kinematic constraint of the hydrostatic assembly. the transmission system includes the hydrostatic assembly that includes the variable displacement hydraulic motor that is hydraulically coupled in parallel with a variable displacement hydraulic pump and a gearbox mechanically coupled to the hydrostatic assembly and including one or more clutches.
F16H 61/40 - Control of exclusively fluid gearing hydrostatic
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission operating method includes asynchronously shifting between a first pair of drive ranges in the transmission via operation of two clutches and a variable displacement hydraulic pump in a hydrostatic assembly. In the method, asynchronously shifting between the two drive ranges includes a plurality of phases that include a swiveling phase where a speed of the hydrostatic assembly is inverted.
F16H 61/66 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
F16H 61/50 - Control of exclusively fluid gearing hydrodynamic controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit
Systems and methods are provided for dual electric motor driveline control. In one example, an assembly comprises: a first electric motor directly coupled to a first output shaft, a second electric motor coaxially aligned with the first electric motor, a planetary gear set having a carrier connected to the first output shaft and the first electric motor, a ring gear connected to ground, and a sun gear connected to a second shaft, a first clutch for selectively coupling the second electric motor to the first electric motor via the carrier, and a second clutch for selectively coupling the second electric motor to the second shaft.
B60K 17/356 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 1/00 - Arrangement or mounting of electrical propulsion units
Methods and systems for operating implements of a vehicle are described. Operation of the implements may be adjusted in response to input to a human/machine interface, such as a joystick. In one example, one or more implement requests are scaled according to a human/machine allowance factor, where the human/machine allowance factor is based on an implements power limit and an implements requested power.
wherein axes of rotation of the rolling elements of the first roller bearing are inclined with respect to the first axial direction so that centrifugal forces generated inside the first roller bearing are configured to transport lubricant towards the at least one movable element.
F16C 33/66 - Special parts or details in view of lubrication
F16C 19/28 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with two or more rows of rollers
Methods and systems for controlling a hydromechanical transmission are proposed. In one example, a control method for a hydrostatic unit of a hydromechanical variable transmission (HVT) is presented, comprising controlling the hydrostatic unit via a feedforward control architecture including a non-linear, multi-coefficient model, wherein the hydrostatic unit comprises a hydrostatic pump and a hydrostatic motor and a desired differential pressure of the hydrostatic unit or a desired hydraulic pump displacement may be used as inputs for the model, where the model's output is a pressure difference for a pump control piston coupled to a swash plate of the hydrostatic unit. Use of the non-linear model permits the hydrostatic unit to be controlled based on load, speed, and/or torque, thereby increasing the adaptability of the control system.
B60W 30/188 - Controlling power parameters of the driveline, e.g. determining the required power
B60W 40/10 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to vehicle motion
B60W 50/06 - Improving the dynamic response of the control system, e.g. improving the speed of regulation or avoiding hunting or overshoot
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
Methods and systems for a transmission are provided herein. In one example, a hydraulic system is provided that includes a boost pump, a relief valve in fluidic communication with the boost pump and a reservoir, and a plurality of control valves in fluidic communication with the boost pump, positioned downstream of the relief valve, and in fluidic communication with a plurality of hydraulic devices. The hydraulic system further includes a controller designed to actively adjust a position of the relief valve based on an aggregate hydraulic pressure demand of the plurality of hydraulic devices to alter a boost pressure of a hydraulic fluid supplied to the plurality of control valves.
F16H 61/02 - Control functions within change-speed- or reversing-gearings for conveying rotary motion characterised by the signals used
F16H 61/00 - Control functions within change-speed- or reversing-gearings for conveying rotary motion
F16H 61/66 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings
The present document relates to a steering sensor assembly comprising an axle housing and a kingpin rotatably mounted on the axle housing, wherein the kingpin features a through hole extending through the kingpin. The steering sensor assembly further comprises a mounting member connected to the axle housing and at least partially disposed in the through hole extending through the kingpin, and a steering sensor comprising a first sensor portion coupled to the kingpin and a second sensor portion coupled to the mounting member.
Methods and systems for a hydromechanical transmission are provided. In one example, the method includes responsive to rotation of a portion of a mechanical assembly induced by cranking of an engine, blocking an output shaft of the hydromechanical transmission via joint engagement of a forward drive clutch and a reverse drive clutch. The method further includes pressurizing a hydrostatic assembly while the forward drive clutch and the reverse drive clutch remain jointly engaged, where the mechanical assembly is coupled in parallel with the hydrostatic assembly.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
77.
Cooling system for a power take-off and transmission assembly for a vehicle comprising the cooling system
A cooling system for a power take-off is proposed. The cooling system comprises a housing including a first chamber for at least partially accommodating a power take-off and a second chamber for at least partially accommodating an axle assembly including an axle shaft, and at least one passive heat conducting element arranged between the first chamber and the second chamber, the at least one passive heat conducting element being configured to provide thermal communication between the first chamber and the second chamber. Furthermore, a transmission assembly for a vehicle is proposed, the transmission assembly comprising the cooling system.
Methods and systems are provided for an oil sensor. In one example, the oil sensor is a system for metallic debris detection, comprising a detection circuit including a first inductor and a second inductor, the second inductor shielded from the external environment, wherein the detection circuit generates an output based on a difference between a first voltage of the first inductor and a second voltage of the second inductor, where the difference indicates a presence of metallic debris within oil.
G01N 27/90 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
The present disclosure relates to methods and systems for 3D printing. In one example, a 3D multi-layer structure is printed with a cavity distributed over multiple layers of a first filamentary material and shaped as a double-headed rivet. Further, the cavity is filled with a second filamentary material in a vertical direction to form a filament-based rivet, the vertical direction perpendicular to the plane of the multiple layers.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
Methods and systems for a hydromechanical transmission. In one example, the transmission system includes a hydrostatic assembly including a variable displacement hydraulic pump and a hydraulic motor and a planetary gearset coupled to a multi-speed gearbox, a hydraulic motor, and an output shaft via separate gears and shafts. In the system the variable displacement hydraulic pump is coupled to an input of the multi-speed gearbox, the multi-speed gearbox includes one or more clutches and is coupled to a prime mover and the output shaft is designed to couple to an axle.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission operating method includes asynchronously shifting between a first pair of drive ranges in the transmission via operation of two clutches and a variable displacement hydraulic pump in a hydrostatic assembly. In the method, asynchronously shifting between the two drive ranges includes a plurality of phases that include a swiveling phase where a speed of the hydrostatic assembly is inverted.
F16H 61/66 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
82.
Hydromechanical transmission with hydrostatic assembly and hydrostatic assembly control method
Methods and systems for transmission control are provided. In one example, a transmission system operating method includes maintaining a displacement set-point of a variable displacement hydraulic motor in a hydrostatic assembly within a working zone, where at least a portion of a boundary of the working zone is determined based on a torque constraint of the hydrostatic assembly. The transmission system includes the hydrostatic assembly that includes the hydraulic motor that is hydraulically coupled in parallel with a variable displacement hydraulic pump and a gearbox mechanically coupled to the hydrostatic assembly and including one or more clutches.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
F16H 61/42 - Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
F16H 61/421 - Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves
An axle assembly for a vehicle comprising an axle housing and a brake assembly coupled to the axle housing. In certain embodiments, the axle housing is configured to receive an interchangeable brake assembly. The brake assembly may comprise a housing having a first chamber and a second chamber, a brake mechanism and a first piston disposed in the first chamber, and a second piston disposed in the second chamber. The first piston may be configured to selectively activate the brake mechanism. The second piston may be disposed in the second chamber adjacent a biasing mechanism having at least one pre-compressed biasing element, wherein the second piston may be configured to selectively activate the brake mechanism.
B60T 1/06 - Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission
F16D 55/40 - Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or on the brake
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
84.
Transmission hydraulic system and method for operation of the hydraulic system
Methods and systems for a transmission are provided herein. In one example, a hydraulic system includes a lubrication valve included in a lubricant line and designed to adjust a flow of lubricant to a multi-disc wet clutch. The hydraulic system further includes a clutch line coupled to a clutch control valve, where the clutch line is in fluidic communication with a hydraulic fluid to a clutch actuator of the multi-disc wet clutch and a passive adjustment device of the lubrication valve and where the passive adjustment device transitions the lubrication valve between a limited flow state and an open flow state based on a pressure of the hydraulic fluid in the clutch line.
Systems are provided for an axle arm including a lubricant reservoir and a driveshaft. In one example, system may include a lubricant reservoir of an axle arm comprising a fill line at an edge of a driveshaft, wherein a central axis of the lubricant reservoir is misaligned with a central axis of the driveshaft.
Methods and systems for a hydromechanical transmission in a vehicle are provided herein. In one example, the transmission system includes a hydrostatic assembly with a hydraulic pump in fluidic communication with a hydraulic motor. The transmission system further includes a controller configured to selectively transition between a torque control mode and a speed control mode of the hydrostatic assembly while the vehicle is on a slope.
Methods and systems for a hydromechanical transmission. In one example, a vehicle system includes a hydromechanical transmission with a power-take off (PTO) that is designed to rotationally couple to an implement. The vehicle system further includes an engine coupled to the hydromechanical transmission and a power-management control unit configured to, during a drive or coast condition, cause the power-management control unit to: determine a net available power for the hydromechanical transmission and manage a power flow between the hydromechanical transmission, a drive axle, and the implement based on the net available power.
F16H 61/4096 - Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
B60K 6/12 - Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
B60K 17/10 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of fluid gearing
F16H 61/06 - Smoothing ratio shift by controlling rate of change of fluid pressure
B60K 17/28 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
F16H 61/00 - Control functions within change-speed- or reversing-gearings for conveying rotary motion
F16H 61/12 - Detecting malfunction or potential malfunction, e.g. fail safe
Methods and systems for tuning vehicle drivability are provided. The vehicle system includes, in one example, a vehicle control unit (VCU) that is designed to electronically communicate with a human machine interface (HMI). In the system, the VCU is designed to, in reaction to receiving an acceleration or deceleration request from the HMI, send a virtual acceleration or deceleration command to a transmission control unit (TCU), where the virtual acceleration or deceleration command correlates to the acceleration or deceleration request and the correlation is user adjustable via a user interface (UI) of the VCU.
B60W 50/08 - Interaction between the driver and the control system
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
B60W 10/02 - Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
B60W 10/113 - Stepped gearings with two input flow paths, e.g. double clutch transmission selection of one of the torque flow paths by the corresponding input clutch
B60W 10/188 - Conjoint control of vehicle sub-units of different type or different function including control of braking systems with wheel brakes hydraulic brakes
Methods and systems for controlling a hydromechanical transmission are proposed. In one example, a control method for a hydrostatic unit of a hydromechanical variable transmission (HVT) is presented, comprising controlling the hydrostatic unit via a feedforward control architecture including a non-linear, multi-coefficient model, wherein the hydrostatic unit comprises a hydrostatic pump and a hydrostatic motor. A desired differential pressure of the hydrostatic unit or a desired hydraulic pump displacement may be used as inputs for the model, where the model's output is a pressure difference for a pump control piston coupled to a swash plate of the hydrostatic unit. Use of the non-linear model permits the hydrostatic unit to be controlled based on load, speed, and/or torque, thereby increasing the adaptability of the control system.
B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
F16H 61/433 - Pump capacity control by fluid pressure control means
F16H 61/472 - Automatic regulation in accordance with output requirements for achieving a target output torque
B60W 10/103 - Infinitely variable gearings of fluid type
B60W 30/188 - Controlling power parameters of the driveline, e.g. determining the required power
B60W 10/02 - Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
B60W 50/06 - Improving the dynamic response of the control system, e.g. improving the speed of regulation or avoiding hunting or overshoot
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
B60K 17/10 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of fluid gearing
F16H 61/47 - Automatic regulation in accordance with output requirements for achieving a target output speed
B60W 40/10 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to vehicle motion
90.
Hydraulic system with smart relief valve and valve control method
Methods and systems for a transmission are provided herein. In one example, a hydraulic system is provided that includes a boost pump, a relief valve in fluidic communication with the boost pump and a reservoir, and a plurality of control valves in fluidic communication with the boost pump, positioned downstream of the relief valve, and in fluidic communication with a plurality of hydraulic devices. The hydraulic system further includes a controller designed to actively adjust a position of the relief valve based on an aggregate hydraulic pressure demand of the plurality of hydraulic devices to alter a boost pressure of a hydraulic fluid supplied to the plurality of control valves.
F16H 61/66 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings
F16H 61/02 - Control functions within change-speed- or reversing-gearings for conveying rotary motion characterised by the signals used
F16H 61/00 - Control functions within change-speed- or reversing-gearings for conveying rotary motion
91.
System and method for operating two or more actuators
Methods and systems for operating a plurality of electrical loads are described. In one example, the systems include electrical circuits for operating solenoid valves of a transmission that may be operated to simultaneously control two or more clutches for engaging and disengaging transmission gears. The systems and method may reduce hardware costs.
Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission system includes a hydraulic pump and a hydraulic motor rotationally coupled in parallel with a first planetary gear set and a second planetary gear set. In the system, sun gears of the planetary gear sets are rotationally coupled to the hydraulic motor, a carrier of the first planetary gear set is rotationally coupled to a first clutch and a second clutch, and a ring gear of the second planetary gear set is rotationally coupled to a third clutch.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
B60K 17/10 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of fluid gearing
B60K 17/28 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission system includes a hydrostatic assembly and a mechanical assembly coupled in parallel to a first and second planetary gear sets. The transmission system further includes a plurality of clutches designed to shift between two drive ranges in a set of drive ranges that includes a reverse drive range and two forward drive ranges to adjust the input to output speed ratio of the transmission.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
Methods and systems for a transmission are provided herein. In one example, a hydraulic system includes a lubrication valve included in a lubricant line and designed to adjust a flow of lubricant to a multi-disc wet clutch. The hydraulic system further includes a clutch line coupled to a clutch control valve, where the clutch line is in fluidic communication with a hydraulic fluid to a clutch actuator of the multi-disc wet clutch and a passive adjustment device of the lubrication valve and where the passive adjustment device transitions the lubrication valve between a limited flow state and an open flow state based on a pressure of the hydraulic fluid in the clutch line.
Methods and systems are provided for utilizing a parking brake in conjunction with negative torque from an electric motor during vehicle braking. In one example, a method may include applying the parking brake in conjunction with negative torque from the electric motor, until the vehicle speed reduces to a speed threshold, and then releasing the parking brake.
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
Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission system includes a hydrostatic assembly and a mechanical assembly coupled in parallel to a first and second planetary gear sets. The transmission system further includes a plurality of clutches designed to shift between two drive ranges in a set of drive ranges that includes a reverse drive range and two forward drive ranges to adjust the input to output speed ratio of the transmission.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission system includes a hydraulic pump and a hydraulic motor rotationally coupled in parallel with a first planetary gear set and a second planetary gear set. In the system, sun gears of the planetary gear sets are rotationally coupled to the hydraulic motor, a carrier of the first planetary gear set is rotationally coupled to a first clutch and a second clutch, and a ring gear of the second planetary gear set is rotationally coupled to a third clutch.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
B60K 17/28 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
B60K 17/10 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of fluid gearing
Methods and systems for a hydromechanical transmission are provided. In one example, the method includes responsive to rotation of a portion of a mechanical assembly induced by cranking of an engine, blocking an output shaft of the hydromechanical transmission via joint engagement of a forward drive clutch and a reverse drive clutch. The method further includes pressurizing a hydrostatic assembly while the forward drive clutch and the reverse drive clutch remain jointly engaged, where the mechanical assembly is coupled in parallel with the hydrostatic assembly.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
Methods and systems for a transmission are provided. The method includes estimating a stroke position of the hydraulic control piston based on a pressure of a fluid in a hydraulic line and a valve and a coefficient of the hydraulic line, where the hydraulic line is coupled to a chamber of the hydraulic control piston. The method further includes controlling a pressure of fluid delivered from the valve to the hydraulic control piston based on the estimated stroke position to achieve a piston stroke set-point during a filling phase.
An assembly for a hydraulically suspended vehicle axle may have a central housing, and at least two hydraulic suspension components supported on the central housing and fluidly connected to one another by a fluid line extending at least partially through the central housing.
B60G 21/073 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
