A steering control device includes a microcomputer. The microcomputer is configured to calculate a torque command value that is a target value of a motor torque, set a restricting value that is an upper limit of an absolute value of the torque command value, restrict the absolute value of the torque command value to be equal to or less than the restricting value, control driving of a motor such that the motor torque follows the restricted torque command value, calculate a steering angle restricting value that decreases based on an increase of an absolute value of a rotation angle, and an absolute value of an angular velocity, when the absolute value of the rotation angle of the rotary shaft exceeds a steering angle threshold, and set the restricting value to be a value equal to or less than the steering angle restricting value.

A steering control device includes a microcomputer. The microcomputer is configured to calculate a torque command value that is a target value of a motor torque, set a restricting value that is an upper limit of an absolute value of the torque command value, restrict the absolute value of the torque command value to be equal to or less than the restricting value, control driving of a motor such that the motor torque follows the restricted torque command value, calculate a steering angle restricting value that decreases based on an increase of an absolute value of a rotation angle, and an absolute value of an angular velocity, when the absolute value of the rotation angle of the rotary shaft exceeds a steering angle threshold, and set the restricting value to be a value equal to or less than the steering angle restricting value.

A sensor structure for measuring a torque applied to a first shaft and a second shaft interconnected by a torsion bar, includes: a multi-pole ring magnet mechanically connected to the first shaft; two pairs of magnetic yokes mechanically connected to the second shaft, each yoke being connected to one or more pads by fingers; the fingers of the first pair of yokes projecting mainly in a radial direction, the fingers of the second pair of yokes projecting mainly in an axial direction; a first and a second pair of flux collectors with extensions forming a first and a second gap; a first sensor in the first gap, a second sensor in the second gap; a circuit for combining signals from the first and second sensor to reduce or eliminates the influence of an external disturbance field, and for determining the torque value.

A sensor structure for measuring a torque applied to a first shaft and a second shaft interconnected by a torsion bar, includes: a multi-pole ring magnet mechanically connected to the first shaft; two pairs of magnetic yokes mechanically connected to the second shaft, each yoke being connected to one or more pads by fingers; the fingers of the first pair of yokes projecting mainly in a radial direction, the fingers of the second pair of yokes projecting mainly in an axial direction; a first and a second pair of flux collectors with extensions forming a first and a second gap; a first sensor in the first gap, a second sensor in the second gap; a circuit for combining signals from the first and second sensor to reduce or eliminates the influence of an external disturbance field, and for determining the torque value.

The invention relates to a device (9) for generating a measurement signal (19) that is dependent on a torque (13) exerted on a torsion shaft (10) around a rotation axis (8) comprising: a magnet ring (16) fixed to a first axial position of the torsion shaft (10) and having a predefined number of magnet poles (28, 29) for generating a magnetic field (17), characterized by a magnet sensor (18) that is fixed to a second axial position of the torsion shaft (10) different from the first axial position and that includes a first sensor element (33) located in a radial plane (36) around the rotation axis (8) and outputting a first sensor signal dependent on the magnetic field (17) arriving the first sensor element (33), and a second sensor element (34, 38) located in the radial plane (36) of the first sensor element (33) but spaced from the first sensor element (33) with a distance (35) that is smaller that a cirumferencial extension of two neighboring magnet poles and outputting a second sensor signal dependent on the magnetic field (17) arriving the second sensor

The invention relates to a device (9) for generating a measurement signal (19) that is dependent on a torque (13) exerted on a torsion shaft (10) around a rotation axis (8) comprising: a magnet ring (16) fixed to a first axial position of the torsion shaft (10) and having a predefined number of magnet poles (28, 29) for generating a magnetic field (17), characterized by a magnet sensor (18) that is fixed to a second axial position of the torsion shaft (10) different from the first axial position and that includes a first sensor element (33) located in a radial plane (36) around the rotation axis (8) and outputting a first sensor signal dependent on the magnetic field (17) arriving the first sensor element (33), and a second sensor element (34, 38) located in the radial plane (36) of the first sensor element (33) but spaced from the first sensor element (33) with a distance (35) that is smaller that a cirumferencial extension of two neighboring magnet poles and outputting a second sensor signal dependent on the magnetic field (17) arriving the second sensor

Provided in one embodiment is a sensing device comprising a stator including a stator tooth, and a rotor including a magnet, wherein the stator tooth includes a first stator tooth and a second stator tooth arranged in the first stator tooth, the first stator tooth includes a plurality of first teeth, second stator tooth includes a plurality of second teeth, and the first teeth overlap with the second teeth in the radial direction from the center of the stator, the sensing device further comprising a first sensor and a collector arranged between the first stator tooth and the second stator tooth in the radial direction, wherein the collector includes a first collector and a second collector arranged in the first collector, the first sensor is arranged between the ring-shaped first collector and the ring-shaped second collector in the radial direction, the first collector and the second collector respectively include a body arranged to face the first sensor, and an extending part that extends from the body, the extending part includes a protrusion part protruding from one side edge of the extending part in the axial direction, and the protrusion part includes areas that differ in width in the circumferential direction.

Embodiments of the present disclosure may provide an electric power steering apparatus that controls the vehicle regardless of the driver's will to steer, even in the case of a truck or a bus requiring a relatively large steering force compared to a passenger car. Embodiments of the present disclosure may provide an electric power steering apparatus that can increase the convenience of the driver by enabling additional functions such as automatic parking, lane maintenance, driving assistance according to road surface conditions, and autonomous driving control to be used. Embodiments of the present disclosure may provide an electric power steering apparatus in which steering is stably performed even if one motor malfunctions or is damaged.

Embodiments of the present disclosure may provide an electric power steering apparatus that controls the vehicle regardless of the driver's will to steer, even in the case of a truck or a bus requiring a relatively large steering force compared to a passenger car. Embodiments of the present disclosure may provide an electric power steering apparatus that can increase the convenience of the driver by enabling additional functions such as automatic parking, lane maintenance, driving assistance according to road surface conditions, and autonomous driving control to be used. Embodiments of the present disclosure may provide an electric power steering apparatus in which steering is stably performed even if one motor malfunctions or is damaged.

The present disclosure relates to a composition for a rack housing member of a vehicle having excellent dimensional stability, and a rack housing member of a vehicle formed therefrom. In an embodiment, the composition for a rack housing member of a vehicle comprises 100 parts by weight of a base resin containing polybutylene terephthalate, an acrylonitrile-styrene-acrylate copolymer, and polyethylene terephthalate, and 40 to 75 parts by weight of an inorganic filler, wherein the inorganic filler includes a glass fiber and a plate-shaped mineral filler.