A position detection device includes a first positional sensor mounted on a reference portion, and a second positional sensor mounted on a detection target that is movable relative to the reference portion. A controller calculates a position of the detection target based on a detection value of the first positional sensor and a detection value of the second positional sensor. The position detection device may be applied to a steer-by-wire system for a vehicle. The reference portion may be a fixed portion of the vehicle, and the detection target may be a steering wheel or a vehicle wheel of the vehicle. The controller may calculate a steering angle of the steering wheel or a turning angle of the vehicle wheel as the position of the detection target.

A steering column assembly includes a steering wheel having a steering wheel rim, a steering wheel hub, and a rim extension segment. The steering column assembly also includes a motor operatively coupled to the rim extension segment. The steering column assembly further includes a jacket assembly operatively coupled to the steering wheel, wherein the jacket assembly defines a central passage extending in a longitudinal direction of the steering column assembly, wherein the central passage does not include a steering shaft therein.

A method for calculating a handwheel angle associated with operation of a steering system of a vehicle includes calculating a plurality of handwheel angles using a plurality of respective handwheel angle calculation techniques, outputting, as results of the plurality of respective handwheel angle calculation techniques, the plurality of handwheel angles, obtaining, using the results of the plurality of respective handwheel angle calculation techniques, a combined handwheel angle output, and controlling at least one function of the steering system of the vehicle using the combined handwheel angle output.

A method for operating a rotation angle sensor unit for steering systems of motor vehicles, wherein the rotation angle sensor unit has an intermeshing gearwheel pair, wherein a first gearwheel is provided to be connected to the steering component for conjoint rotation and a second gearwheel is mounted in a rotationally fixed manner with respect to the first gearwheel, wherein two first and two second rotation angle sensors are assigned to the first and second gearwheels respectively, and the rotation angle sensor unit comprises a control unit with two independent control units, wherein, for operation of the rotation angle sensor unit with the predetermined vehicle safety integrity level, at the time of initialization of the rotation angle sensor unit each controller unit determines an initial absolute rotation angle for the steering component, and the initial absolute rotation angles are initially synchronized once, wherein each controller unit after initial synchronization continuously determines a first and second absolute rotation angle of the steering component from rotation angle data of a first rotation angle sensor on the one hand and from rotation angle data of a second rotation angle sensor on the other hand and combines these in a plausibilized manner to form an absolute rotation angle.

An electronic steering system for a vehicle includes an input module configured to receive a steering command angle from a cooperative control unit, a steering angle sensor configured to detect a steering angle of a steering wheel of the vehicle, a memory, and a processor operatively coupled to the input module, the steering angle sensor, and the memory. The processor is configured to, when a cooperative control command angle is input from the input module, calculate a steering angle offset and a command angle offset, and then perform steering angle position control with respect to the cooperative control command angle by sequentially ramping down the steering angle offset and the command angle offset to output a pinion angle of a wheel of the vehicle.

The disclosure relates to a steering control device and method. According to the disclosure, a steering control device comprises a detachable dial including a permanent magnet, a hall sensor detecting a position of a magnet provided in the dial, and a controller receiving manager authentication information, calculating a rotation angle of the dial based on a position of the permanent magnet received from the hall sensor when the manager authentication information is valid, and transmitting a control signal to a road wheel actuator (RWA) to move a tire to a position corresponding to the rotation angle.

A steer-by-wire steering system for a road vehicle includes a road wheel actuator to act on steerable wheels and electronically controlled as a function of a driver's steering request, a feedback actuator to transmit reactions of a road to a steering wheel, and a single steering wheel angle sensor to measure a steering wheel angle. The steering wheel angle sensor is an external sensor able to communicate on a second vehicle communication channel or via a private communication with the road wheel actuator. The steer-by-wire steering system also includes an external road wheel actuator position sensor to measure a position of the road wheel actuator and to communicate on the second vehicle communication channel or via the private communication with the road wheel actuator.

A sensor assembly for an electromechanical steering system of a motor vehicle may include a measuring device and a control device. The measuring device may include a torque sensor unit and an index sensor unit. The torque sensor unit may be connected to the control device by a power supply line to supply said unit with electrical energy. The sensor assembly is configured to transmit an index signal of the index sensor unit to the control device by modulating a signal that is transmittable via the power supply line.

A position detection device for detecting the position of a shaft that moves forward and backward in the axial direction in a predetermined range includes an excitation coil that generates an alternating current magnetic field, a detection target fixed to the shaft and in which the magnetic flux of the alternating current magnetic field is chained together, and a detection coil in which the magnetic flux of the alternating current magnetic field is chained together, wherein the detection coil has first to fourth portions where an induced voltage is induced by the magnetic flux of the alternating current magnetic field chained together, and connection portions connecting the first to fourth portions, wherein the first to fourth portions each extend along the coil longitudinal direction which is parallel to the axial direction, and at least a portion of each is aligned perpendicular to the coil longitudinal direction, wherein the detection target has a first detection target portion at least partially facing the first portion in the first predetermined range of the predetermined range, a second detection target portion at least partially facing the second portion in the second predetermined range of the predetermined range, a third detection target portion at least partially facing the third portion in the third predetermined range of the predetermined range, and a fourth detection target portion at least partially facing the fourth portion in the fourth predetermined range of the predetermined range, wherein the induced voltage induced in the first to fourth portions varies with the position of the first to fourth detection target portions relative to the first to fourth portions respectively, and wherein the first detection target portion, the second detection target portion, the third detection target portion, and the fourth detection target portion are spaced apart in the axial direction of the shaft.

The present disclosure relates to a steering column for a motor vehicle, comprising a steering shaft which is mounted so as to be rotatable about its longitudinal axis (L) relative to a carrying unit, a rotation limiter having an end stop for limiting the rotation of the steering shaft, and a rotary sensor coupled to the steering shaft by means of a torque-locked connection. In order to permit a greater operational reliability, the invention proposes that the rotation limiter has a threshold torque and, if said threshold torque is exceeded, the rotation of the steering shaft beyond the end stop is permitted, wherein the threshold torque is less than a maximum transmission torque of the connection between the steering shaft and rotary sensor.