Abstract: A system for controlling an end-of-travel of a handwheel is disclosed. The system comprises: a processor; and a memory that includes instructions that, when executed by the processor, cause the processor to: receive sensor data from at least one sensor associated with a roadwheel actuator of a vehicle; determine, based on the sensor data, a mechanical end-of-travel value of the roadwheel actuator of a roadwheel actuator of the vehicle; determine, based on the mechanical end-of-travel value of the roadwheel actuator and a speed of the vehicle, a handwheel actuator end-of-travel active value and an end-of-travel damping value; determine an end-of-travel value of a handwheel actuator based on the handwheel actuator end-of-travel active value, the end-of-travel damping value, and a reference torque value; and selectively control the handwheel of the vehicle based on the end-of-travel value of the handwheel actuator.

Abstract: A steering column jacket assembly for a steering system of motor vehicle includes a first steering jacket extending along a longitudinal axis and a second steering jacket arranged for telescoping movement relative to the first steering jacket along the longitudinal axis. A guide bracket is fixed to the second steering jacket. The guide bracket has a guide bushing disposed between the guide bracket and the first steering jacket, the guide bushing self-centering the first steering jacket and the second steering jacket relative to one another to inhibit relative rotation between the first steering jacket and the second steering jacket.

Abstract: A torsion bar for a vehicle steering system includes a first end region. The torsion bar also includes a second end region. The torsion bar further includes a main body extending about a longitudinal axis of the torsion bar from the first end region to the second end region, wherein the main body defines a plurality of splines circumferentially spaced from each other to form a splined outer surface extending along the entire length of the main body.

Abstract: A steering system includes a motor, and a processor configured to perform a method. The method includes computing, by a processor, a predicted steering angle at a future time step. The method further includes determining, by the processor, a predicted vehicle-position at the future time step based on the predicted steering angle. The method further includes detecting, by the processor, a proximity to an object at the future time step based on predicted vehicle-position. The method further includes generating, by the processor, an intervention signal in response to the proximity being below a predetermined threshold.

Abstract: An intermediate shaft for a steering system includes a main body having a radially outer surface. The intermediate shaft also includes a grooved portion located along the main body and defining at least one groove to allow deformation of the main body when a predetermined force on the main body is exceeded, wherein the entirety of the grooved portion does not radially exceed the radially outer surface of the main body.

Abstract: A steering rack includes an elongate member, a plurality of steering rack teeth, and a ramp function. The elongate member has a first portion disposed opposite a second portion. The plurality of steering rack teeth are cut and formed into the first portion. Each tooth of the plurality of steering rack teeth have a substantially constant height across a length of the elongate member. The ramp function is formed into the second portion of the elongate member.

Abstract: Technical solutions described herein include a method of controlling an electric power steering system includes determining that one or more hand wheel torque sensors of electric power steering system are not operational and in response generating an assist torque command by estimating a front slip angle based on a motor angle of a motor of the electric power steering system and a vehicle speed. The method also includes converting the front slip angle to a rack force. The method also includes determining an amount of assist torque based on the rack force and controlling the electric power steering system using the generated assist torque command.

Abstract: An integrated locking feature for a rake lock mechanism of a steering column assembly includes a toothed portion. The integrated locking feature also includes a driver portion. The integrated locking feature further includes a spring portion coupling the driver portion and the toothed portion, wherein the toothed portion, the driver portion and the spring portion are integrally formed with each other as a single, uniform structure, wherein the spring portion has a thickness less than a thickness of the toothed portion.

Abstract: A method includes receiving rack force estimate data and receiving vehicle speed data that indicates a speed of a vehicle. The method also includes classifying the rack force estimate data into corresponding rack force estimate segments associated with frequency ranges and estimating, based on at least one rack force estimate segment and the vehicle speed data, a rack force value. The method also includes controlling vehicle steering based on at least the rack force value.

Abstract: An inductor comprises a base having a top surface, a bottom surface, and at least one side surface. The top surface is spaced from the bottom surface. The at least one side surface connects the top surface to the bottom surface. A core is located on the top surface and coupled to the base. At least one coil extends helically about the core. The at least one coil has at least one end extending outwardly from said core. At least one lead is coupled to the at least one coil and extending outwardly from the base in a coplanar relationship with the bottom surface. A circuit card assembly including the inductor and a method of manufacturing the circuit card assembly are also disclosed herein.

Abstract: A motor vehicle electric motor assembly includes a motor housing having an annular wall extending from a housing first end to an opposite housing second end about a central axis to bound a cavity. The housing first end has a base configured to support a bearing housing. A motor shaft extends along the central axis between a shaft first end and a shaft second end. A rotor is fixed to the shaft for rotation about the central axis. A stator is supported by the annular wall in radially spaced relation from the rotor. A bearing is fixed in the bearing housing to support the shaft first end for rotation about the central axis. An end cover assembly is fixed to the housing second end. The end cover assembly has a motor shaft opening with a periphery of the motor shaft opening supporting the shaft second end for rotation about the central axis.

Abstract: A constant velocity joint assembly includes an outer joint member defining a first longitudinal axis and including a closed end, an open end, a first set of outer tracks extending at least partially between the closed end and the open end, and a second set of outer tracks extending at least partially between the closed end and the open end. The assembly also includes an inner joint member defining a second longitudinal axis coaxial with the first longitudinal axis and including a first set of inner tracks and a second set of inner tracks, the inner joint including an attachment feature to receive a driveshaft. A path followed by the center of a ball in the first set of tracks is constrained by an outer race track path and an inner race track path, the outer race track path being a piecewise continuous function.

Abstract: An axially adjustable steering column assembly includes an upper jacket. And a lower jacket. The steering column assembly further includes a column mounting bracket, wherein the lower jacket is operatively coupled to the column mounting bracket and translates relative to the column mounting bracket, wherein the column mounting bracket defines a first set of tapered rail slots, each of the first set of tapered rail slots disposed on opposite sides of the column mounting bracket and extending longitudinally along the column mounting bracket, wherein the lower jacket defines a second set of tapered rail slots, each of the second set of tapered rail slots disposed on opposite sides of the lower jacket and extending longitudinally along the lower jacket. The steering column assembly yet further includes a first pair of sliding wedge bushings disposed within the first set of tapered rail slots.

Abstract: A method includes receiving motor velocity data, and, in response to a determination that the motor velocity data indicates that a velocity of a motor is below a threshold velocity: calculating a thermal metric corresponding to a phase imbalance of the motor; identifying at least one thermal mitigation parameter based on the thermal metric; generating at least one thermal management motor position command based on the at least one thermal mitigation parameter; and selectively controlling the motor according to the thermal management motor position command.

Abstract: A number of variations may include a method including using at least one of brakes or propulsion energy to steer an autonomous or semi-autonomous vehicle if a primary, secondary or other redundant steering system for an autonomous or semi-autonomous vehicle has failed or is insufficiently unhealthy to perform a desired function, the method including determining if a primary, secondary or other redundant steering system of an autonomous or semi-autonomous vehicle has failed or is not sufficiently healthy to perform a desired function, and if so, converting a steer request into a desired yaw rate, curvature, curvature over time, radius, radius or time or yaw rate acceleration, calculating a brake pressure sufficient to produce the desired yaw rate, curvature, curvature over time, radius, radius or time or yaw rate acceleration, delivering brake pressures signals via a lateral control module to an actuator for at least one brake connected to a wheel of the vehicle so that the brake pressure causes the vehicle ya

Abstract: A rack electric power steering system includes a rack having a single set of teeth with a constant tooth pitch. The system also includes a first pinion operatively coupled to a steering shaft and in meshed engagement with the single set of teeth of the rack. The system further includes a second pinion operatively coupled to an electric motor and in meshed engagement with the single set of teeth of the rack.

Abstract: A method for providing steering assist for a vehicle includes determining whether a primary communication system of the vehicle communicated a first vehicle speed signal, the first vehicle speed signal indicating a first vehicle speed of the vehicle. The method also includes, in response to a determination that the primary communication system did not communicate the first vehicle speed signal, detecting a fault in the primary communication system. The method also includes, in response to detecting the fault in the primary communication system, determining whether a secondary communication system communicated a second vehicle speed signal, the second vehicle speed signal indicating a second vehicle speed of the vehicle. The method also includes, in response to a determination that the secondary communication system communicated the second vehicle speed signal, selectively providing steering assist to a steering mechanism of the vehicle based on the second vehicle speed of the vehicle.

Abstract: A method of controlling a dual wound synchronous machine (DWSM) includes: determining virtual current commands based on a current command associated with each of two winding sets of the DWSM; determining virtual half-motor currents by applying a mathematical transformation on measured output currents; determining half-motor difference currents based on differences between the corresponding virtual current command and the virtual half-motor current; calculating forward path voltage commands based on the corresponding difference currents and using first and second gain factors; determining feedback voltage commands by applying third and fourth gain factors to the virtual half-motor currents; determining virtual final voltage commands based on the corresponding forward path and feedback voltage commands; determining final voltage commands by applying a second mathematical transformation to the virtual final voltage commands; commanding, based on the final voltage commands, inverters to apply corresponding voltag

Abstract: An apparatus for an electronic power steering system includes a printed circuit board and a first sensor. The printed circuit board comprising: a first surface and a second surface opposite the first surface; a first processor section extending in a first direction on the first surface; a second processor section extending in a second direction opposite the first direction on the second surface; and a void disposed between the first surface and the second surface, the first processor section and the second processor section being separated by the void.

Abstract: A steer by wire system includes a controller operable to operate a roadwheel actuator such that a position command to the roadwheel actuator based on a handwheel orientation is a magnitude corresponding to a handwheel orientation offset value in an opposite direction to reduce a difference between the handwheel orientation offset value and a predetermined handwheel zero value.