The invention relates to a turning device for a steered wheel of a rolling machine, the device including: a yoke (20), an assembly (10) for mounting the steered wheel, including an end piece (11) intended to be attached to the steered wheel, and an intermediate connecting member (300), relatively to which the end piece (11) is mounted so as to rotate around a first axis (13) of rotation of the steered wheel, a support (12) pivotally mounted around a second axis (23) of rotation relatively to the yoke (20) according to a turning angle (ANG) of the wheel, the second axis (23) of rotation being distinct and not parallel to the first axis (13) of rotation of the steered wheel, a turning angle sensor (30), one from among the support (12) and the yoke (20) being attached to the intermediate connecting member (300) and the other one from among the support (12) and the yoke (20) being intended to be attached to a fixed portion (C, E) of the rolling machine.

The invention is characterized in that the turning angle sensor (30) is a contactless sensor between the yoke (20) and the support (12).

A steering control apparatus, according to an embodiment, may include: a detecting unit configured to detect the angle of a pinion gear that is positioned in the front wheel, a column torque, and a motor current; a frequency estimating unit configured to estimate a road surface frequency that is generated by the road on which the vehicle travels based on at least one of the angle of the pinion gear, the column torque, or the motor current; a rack force estimating unit configured to estimate a rack force based on at least one of the angle of the pinion gear, the column torque, or the motor current; and a control unit configured to extract road surface information that is contained in the rack force based on the road surface frequency and configured to control a steering apparatus based on the road surface information and the rack force.

A steering control device includes a base axial force calculator, a limiting axial force calculator, and a final axial force calculator. The limiting axial force calculator includes a steering angle holder, a reference angle calculator, a final difference calculator, and an axial force calculator. The steering angle holder is configured to hold a steering angle at the time of limiting a turning operation of the turning wheels when the turning operation is limited. The reference angle calculator is configured to calculate a reference angle. The final difference calculator is configured to calculate a final difference which is a final difference between the reference angle and the current steering angle. The axial force calculator is configured to calculate a limiting axial force based on a value of the final difference.

Disclosed herein is a sensor assembly capable of detecting moisture introduced into a rack housing. The sensor assembly includes a housing, an angle sensor provided in the housing, and a moisture sensor provided in the housing. The moisture sensor includes a ground electrode, a first input electrode, a second input electrode, and a control unit electrically connected to the ground electrode, the first input electrode, and the second input electrode to detect moisture. The ground electrode, the first input electrode, and the second input electrode extend downward from the housing. A lower end of the ground electrode, a lower end of the first input electrode, and a lower end of the second input electrode are exposed to the outside of the housing. Further, the first input electrode extends downward to a different level compared to the second input electrode.

A drive unit for a steer-by-wire system for a vehicle having a motor for providing a drive power to a control rod of the wheel actuator. A sensor device determines the position of the control rod, wherein the sensor device has a first sensor unit and at least one second sensor unit. The first sensor unit is designed to detect an angle of a rotor shaft of the motor, and the second sensor unit is designed to detect an angle of an auxiliary shaft which is mechanically operatively connected to the rotor shaft. A transmission device provides the mechanical operative connection between the rotor shaft and the auxiliary shaft. A controller actuates the sensor device and/or determines the position of the control rod of the wheel actuator. The first sensor unit and second sensor unit use different measuring principles.

A steering device for a vehicle, having a rack which is mounted so as to be displaceable in a direction of a longitudinal axis of the rack, having a pinion, wherein the rack meshes with the pinion, having a pressing mechanism, wherein the rack is pressed against the pinion by the pressing mechanism, and having a sensor mechanism. The sensor mechanism is designed at least for measuring a compressive force. To detect or measure a rack force of the rack reliably and/or easily, the steering device is characterized in that a compressive force component directed radially to the longitudinal axis of the rack can be detected or measured by the sensor mechanism.

A position detection device for detecting a position of a shaft moving forward and backward in an axial direction is provided with a detection object attached to the shaft, an excitation coil for generating an alternating magnetic field, and a detection coil arranged along an axial direction of the shaft. A magnitude of a voltage induced in the detection coil varies in accordance with a position of the detection object.

A steering computing device for calculating state quantity of a steering apparatus includes a processor. The processor is configured to execute a steering angle variable acquisition process, an output shaft angle variable acquisition process, and a joint angle variable calculation process. The steering angle variable acquisition process is a process of acquiring a value of a steering angle variable. The output shaft angle variable acquisition process is a process of acquiring a value of an output shaft angle variable as a variable indicative of a rotation angle of an output shaft of the steering apparatus. The joint angle variable calculation process is a process of calculating a value of the joint angle variable. The joint angle variable is a variable defining an angle formed between an axial direction of an input shaft of the steering apparatus and an axial direction of the output shaft.

A belt drive comprises a first pulley with a first diameter and a second pulley with a second diameter as well as a belt which is arranged in each case on a lateral surface of the first and the second pulley and is configured to transmit a rotational movement of the first pulley to the second pulley. Furthermore, the belt drive has a first sensor assembly, which is arranged and configured to detect a rotational position of the first pulley, and a second sensor assembly, which is arranged and configured to detect a rotational position of the second pulley. The first diameter corresponds to a first integer multiple of a unit length and the second diameter corresponds to a second integer multiple of the same unit length, wherein the first and second integer multiples of the unit length are coprime.

An absolute position sensor includes a first gear having a plurality of teeth, a rotational position sensor operatively coupled to the first gear to be configured to detect a rotational position of the first gear, and a second gear including a spiral tooth engaged with the plurality of teeth of the first gear to rotate with the first gear, and having a first end with a first distance from a center of the second gear, and an opposite second end with a second distance from the center of the second gear, the second distance being less than the first distance.