The vehicle behavior control device comprises: a steer-by-wire type steering apparatus (6) having a steering wheel-side mechanism and a road wheel-side mechanism which are mechanically separated from each other; and a controller (8) performs a driving force reduction control of reducing a driving force for a vehicle (1) when a steering speed in the steering apparatus (6) becomes equal to or greater than a given threshold. The steering apparatus (6) comprises a first steering angle sensor (14) provided in the steering wheel-side mechanism and a second steering angle sensor (19) provided in the road wheel-side mechanism. The controller (8) performs the driving force reduction control based on the steering speed in accordance with a sum of an output of the first steering angle sensor (14) and an output of the second steering angle sensor (19).

Embodiments of the disclosure relate to a steering assist device and method, and a steering system. The steering assist device comprises an input-side steering control module controlling an input-side steering actuator to assist an input-side mechanism connected with a steering wheel and an output-side steering control module controlling an output-side steering actuator to assist an output-side mechanism mechanically separated from the input-side mechanism and connected with a wheel. The output-side steering control module may control an output-side steering motor based on a position sensing value of the output-side mechanism and a position sensing value of an output-side steering motor included in the output-side steering actuator, which are received from their respective sensors.

A steer-by-wire steering assembly comprises a housing and a motor assembly having at least one rotor and at least one stator having a first motor winding and a second motor winding, the at least one stator being mounted to the housing. A steering shaft comprises a threaded portion configured to engage with a screw actuator and to move longitudinally with respect to the housing when the first motor winding and/or the second motor winding is actuated. A rotational sensor is mounted on the housing adjacent to one or more rotatable components. The rotational sensor is configured to generate a signal in dependence on detecting rotational movement of the rotatable components. A linear displacement sensor is mounted to an end of the steering shaft. The linear displacement sensor is configured to generate a signal in dependence of detecting linear movement of the steering shaft.

An ADK is attachable to and removable from a VP and issues an instruction for autonomous driving to the VP. The VP includes a steering system for steering of the VP. (An ADS of) the ADK includes a compute assembly and a communication module configured to communicate with the VP. The compute assembly obtains from the VP, a torque value relating to a steering system 33 through the communication module and transmits to the VP, a wheel steer angle command indicating the wheel steer angle in accordance with a driving plan for autonomous driving and the obtained torque value. Even when a user intervenes with an operation while the attachable and removable ADK that issues the instruction for autonomous driving controls the VP, stable steering can be achieved.

A steering apparatus for a vehicle includes: a rack housing; a rack bar inserted into an inner portion of the rack housing and moving linearly in a lengthwise direction of the rack housing; a housing mounted on the rack housing; a first sensing section mounted on the housing to sense an amount of movement of the rack bar while being rotated in mesh with the rack bar as the rack bar moves linearly on the rack housing; and a second sensing section mounted on the rack housing to sense the amount of movement of the rack bar within an on-center section.

A device for determining steering wheel rotation information, which comprises a linear motion transforming element connected to a steering column of a steering wheel for transforming rotation of the steering wheel into a linear movement, and a processing element electrically connected to the linear motion transforming element for determining steering wheel rotation information based on the linear movement transformed by the motion transforming element.

A sensing device includes: an encoder rotating with a rotation shaft and having an external surface with an alternating structure made of magnetic material; at least one magnet facing the external surface and arranged to be fixed outside the encoder; and at least one sensing element arranged to be fixed between the at least one magnet and the encoder and output an alternating signal from the alternating structure as the encoder rotates, wherein the sensing element is a sensing element sensitive to a magnetic field.

A vehicle includes steering devices configured to change a travel state of the vehicle between a normal travel mode and a special travel mode by steering right and left wheels in right and left opposite directions; a display device; and a processor configured to calculate an angle difference between the angle of each of the right and left wheels in either one of the normal travel mode and the special travel mode, and the current angle of each of the right and left wheels, which have been steered by the steering devices. The processor is further configured to display, on the display device, information necessary for a driver to steer the right and left wheels based on the angle difference.

A method and device for deriving an absolute multiturn rotational angle of a rotating shaft (19), wherein sensors are arranged to sense the absolute rotational angles of wheels (14, 15, 18) or shafts (13, 16, 19) in a power transmission line having an non-integer gear ratio between the wheels/shafts, and wherein the power transmission line includes a gearbox (11) having multiple stages and wherein the rotational angle is sensed on multiple wheels (14, 15, 18) or shafts (13, 16, 19) in different stages, whereby an absolute multiturn rotational angle of the output shaft from the transmission line is derived by sensing the rotational angles of at least three wheels (14, 15, 18) or shafts (13, 16, 19) in different stages, and analyzing the combination of the sensed angles of the wheels or shafts and thereby deriving the absolute multiturn rotational angle based on the rotational angles read by the sensors.

A steering controller that controls a motor to output an assist torque to steer a steering member, including a steer property calculator calculating a steer state quantity that is an index of a steering state indicating one of (i) a steer-away state, (ii) a steer-back state, or (iii) a stay-still state, an adjusted torque calculator calculating an adjusted torque based on the steer state quantity, and an instruction value calculator calculating an assist torque instruction that is an instruction value regarding a drive of the motor by using the adjusted torque. In such manner, the steer state quantity, the steer-back operation, the stay-still operation of a steering wheel, and the adjusted torque are appropriately calculated, thereby enabling an appropriate adjustment of a steering feel.