A power steering system for a motor vehicle, having a steering column integrating an upper shaft and an intermediate shaft rotatably linked and movable in translation relative to one another, an upper tube and a lower tube rotatably linked and movable in translation relative to one another, the upper shaft being movable in rotation and linked in translation within the upper tube, and an assist module integrating an output shaft linked in rotation with the intermediate shaft via a torsion bar, a reducer having a worm screw driven by an assist motor and which meshes on a worm wheel linked to the output shaft; and an angle measuring device having an inductive sensor carried by an annular support having a central orifice dimensioned so as to let the upper tube pass, a lower target securely mounted around the output shaft and an upper target.

A rotary connector device is provided, which includes a moving member on a stator side in an insertion direction of a steering shaft, the moving member including a first recessed portion recessed in the insertion direction and located in a first direction (X) orthogonal to a center axis (Cx) of the stator, and a second recessed portion recessed in a direction opposite to the first recessed portion and located in a second direction (Y); a rotator including a first guide portion configured to loosely fit together with and guide the first recessed portion; a rotating portion provided in the stator and configured to rotate about the center axis (Cx) includes a second guide portion configured to loosely fit together with and guide the second recessed portion; and the first recessed portion and the second recessed portion are capable of movement in the first direction (X) and the second direction (Y).

A steering assist apparatus on a vehicle is provided, including a steering drive unit that drives a steering apparatus; a steering control unit that executes an automatic steering mode in which the steering drive unit is controlled such that a turning angle is determined based on at least either a running state of the vehicle or road information to accomplish the determined turning angle; and a transmission ratio determining unit that determines, based on at least either a running state of the vehicle or the road information, a first transmission ratio in the automatic steering mode to be a value different from a second transmission ratio in a manual steering mode in which the steering apparatus operates in accordance with the steering angle inputted via a steering input apparatus.

A steering system for a vehicle includes a steering column, a steering wheel rotatable about an axis between rotational positions, and a magnetic paddle shift system for selecting a gear of a transmission. A sensor assembly has a sensor array. First and second paddle shifters are rotatable with the steering wheel and extend from a proximal end to a distal end. First and second magnets are disposed at the proximal end of the first and second paddle shifters, respectively, in alignment with the sensor array in any of the rotational positions. Actuation of the first and second paddle shifters move, respectively, the first and second magnets relative to the sensor array between first and second positions, the magnets being closer to the sensor array in the second position. The sensor array is configured to sense the first and second magnets in the second position for any of the rotational positions.

A steering system for a vehicle includes a steering column, a steering wheel rotatable about an axis between rotational positions, and a magnetic paddle shift system for selecting a gear of a transmission. A sensor assembly has a sensor array. First and second paddle shifters are rotatable with the steering wheel and extend from a proximal end to a distal end. First and second magnets are disposed at the proximal end of the first and second paddle shifters, respectively, in alignment with the sensor array in any of the rotational positions. Actuation of the first and second paddle shifters move, respectively, the first and second magnets relative to the sensor array between first and second positions, the magnets being closer to the sensor array in the second position. The sensor array is configured to sense the first and second magnets in the second position for any of the rotational positions.

A steer-by-wire system includes a turning device that turns a vehicle wheel; and a steering reaction force control unit that controls a steering reaction force applied to a steering wheel. The steering reaction force control unit is configured to calculate a plurality of kinds of axial forces, calculate a final axial force based on the axial forces, and generate the steering reaction force corresponding to the final axial force. The axial forces include a basic axial force, and an under axial force that becomes smaller than the basic axial force during understeer. The steering reaction force control unit is configured to calculate a degree of understeer reflecting a difference between the basic axial force and the under axial force during the understeer and to reduce the final axial force during the understeer to a value smaller than the basic axial force by an amount corresponding to the degree of understeer.

A steering assist apparatus is provided with a steering drive unit driving a steering apparatus, a steering control unit executing an automatic steering mode where a steering drive unit is controlled such that a turning angle is determined based on at least either a running state of the vehicle or road information to produce the determined turning angle, and a target differential angle control unit determining a target differential angle. The target differential angle control unit determines the target differential angle to be close to an automatic steering target differential angle used for the automatic steering mode, when input variation through a steering input apparatus is not detected during a transition period from a manual steering mode where the steering apparatus operates in response to the steering angle inputted through the steering input apparatus to the automatic steering mode or during an elapsed period after completing the transition period.

A rotary connector device body in which a rotator and a stator are assembled so as to be relatively rotatable has a housing space that can house an FFC inside. The rotary connector device body has a viewing window that is a through hole through which the housing space is viewed from outside of the rotary connector device body, a cover member disposed at the viewing window so as to cover the viewing window, an outer regulating portion facing outside of the rotary connector device body and disposed so as to be able to contact an outer surface of the cover member, and an inner regulating portion facing the housing space and disposed so as to be able to contact an inner surface of the cover member. The cover member is disposed between an outer regulating portion and an inner regulating portion.

A sensor includes a permanent magnet mounted on a shaft, a magnetic yoke, a magnetism collecting ring, a circuit board, and a sensor housing through which the shaft is inserted. The sensor housing has a box-shaped accommodating chamber accommodating at least the circuit board via an opening that opens in a direction crossing an axial direction of the shaft. A reinforcing member connecting two wall surfaces of the accommodating chamber that face each other in the axial direction of the shaft is provided in the accommodating chamber.

A control device for a steer-by-wire type vehicle calculates a target turn angle being represented as a function of a steering angle of a steering wheel, and controls a turning device such that a turn angle of a wheel becomes the target turn angle. A variation range of the steering angle includes: an effective steering range in which the steering angle is an effective maximum steering angle or smaller; and an adjustment steering range in which the steering angle is between the effective maximum steering angle and a predetermined maximum steering angle. The target turn angle calculated according to the effective maximum steering angle is an effective maximum turn angle. The control device variably sets the function according to a road surface condition such that the effective maximum turn angle in a case of a low- condition is smaller than that in a case of a high- condition.