B62D5/04

Magnet structure, rotational angle detector, and electric power steering device
11616421 · 2023-03-28 · ·

A magnet structure is a magnet structure for a TMR element which is an MR element. The magnet structure includes a bonded magnet compact that has a first main surface facing the TMR element, and a second main surface on a side opposite to the first main surface; and a tubular member that supports the bonded magnet compact. The bonded magnet compact has a gate portion which is provided on the second main surface and includes a gate mark formed by performing injection molding. The gate portion is provided at a position overlapping a center on the second main surface when seen from the second main surface side.

Gearbox assembly for a vehicle

A gearbox assembly includes a housing, an output shaft, a wheel gear, an input shaft, a torsion bar, an electric motor, a worm gear and a key lock. The wheel gear may be fixed to the output shaft for engagement with a wheel gear. The torsion bar may connect the input shaft to the output shaft. The worm gear may be rotationally fixed to the rotor and engages the wheel gear to transfer torque from the motor to the output shaft. The key lock may include an adapter, an annular outer part, a web, and a locking collar. The key lock may be fixed to the housing and is movable between an extended position in which a part of the key lock engages the locking collar and a retracted position in which the part is held clear of the locking collar.

STEERING CONTROL DEVICE AND METHOD FOR VEHICLE
20230034107 · 2023-02-02 ·

The disclosure relates to a vehicle steering control device and method. There may be provided a vehicle steering control device and method that may detect a slip state of the steering wheel according to the driving state when misalignment occurs between the steering angle of the steering wheel and the rotation angle of the steering motor and performs control to release the slip state, thereby securing driving safety.

STEERING DEVICE FOR STEERING A VEHICLE, AND METHOD FOR DETECTING AN INGRESS OF WATER USING SUCH A STEERING DEVICE
20230034783 · 2023-02-02 ·

The disclosure relates to a steering device for steering a vehicle, having a housing and having a rack. The rack is movable in the longitudinal direction of the rack and in relation to the housing. The rack has a detection installation for detecting an ingress of water. In order to be able to detect an ingress of water at an early stage, in a reliable manner and/or by an ideally cost-effective detection installation. The steering device includes that the detection installation has at least one friction installation which reacts to an ingress of water. The friction installation, upon reacting to the ingress of water and in the event of a movement of the rack, causing an increase in friction.

Turning system
11613303 · 2023-03-28 · ·

A turning system includes a steering wheel, a turning actuator that has an electric motor incorporated thereinto and turns turning wheels, and a control device. The control device is configured to perform: a steering operation amount calculating process of calculating a steering operation amount; an angle command value calculating process of calculating an angle command value; an angle operation amount calculating process of calculating an angle operation amount; an operation process of operating a drive circuit of the electric motor; and a correction process of correcting a parameter upstream from the angle operation amount calculating process such that a drag force resisting an operation of the steering wheel for increasing magnitude of the turning angle is applied when the magnitude of the turning angle is equal to or greater than a turning angle threshold value.

Apparatus and method for calculating absolute angular position for controlling vehicle steering system
11613238 · 2023-03-28 · ·

A vehicle steering system comprises: a motor assembly operably coupled to a steering rack, the motor assembly comprising a motor having a rotor and a motor position sensor configured to sense a rotor angle of the motor in a single-turn range; and a rotary-to-linear conversion mechanism operably coupled between the motor assembly and the steering rack, the rotary-to-linear conversion mechanism comprising a rotor operably coupled to the rotor of the motor. A processor calculates an absolute angular position of the pinion in a full-turn range of rotation of the pinion based on the sensed rotor angle of the motor and a pinion angle sensed by a pinion angle sensor in a single-turn range, or based on the sensed rotor angle of the motor and an angle of the rotor of the rotary-to-linear conversion mechanism sensed by an angular position sensor in the single-turn range.

Hardware implemented motor control and platform for EPS
11485408 · 2022-11-01 · ·

A motor electric control unit (ECU) for an electromechanical power steering mechanism, which controls current through an electric assist motor in response to sensed vehicle signals, wherein the ECU comprises an application specific integrated circuit (ASIC) design, that implements safety and platform features in hardware.

Hardware implemented motor control and platform for EPS
11485408 · 2022-11-01 · ·

A motor electric control unit (ECU) for an electromechanical power steering mechanism, which controls current through an electric assist motor in response to sensed vehicle signals, wherein the ECU comprises an application specific integrated circuit (ASIC) design, that implements safety and platform features in hardware.

Motor-assisted steering gearbox

Power assisted steering systems provide a gear reduction of approximately 25:1 between a steering wheel and a steering mechanism and approximately 625:1 between an electric motor and a steering mechanism. The system is back-driveable from the steering mechanism. In one embodiment, the gear reduction is provided primarily by three planetary gear sets, with the remainder provided by axis transfer gearing. In another embodiment, the gear reduction is provided primarily by a cycloidal gear set, with the remainder provided by axis transfer gearing.

Vehicle contact avoidance assist system
11613307 · 2023-03-28 · ·

In a vehicle contact avoidance assist system (1) for providing assistance in avoiding an obstacle located ahead of a vehicle including a contact avoidance control unit (15) configured to perform an obstacle avoidance operation upon detecting an obstacle located ahead of the vehicle, the obstacle avoidance operation including a steering of the steerable wheel via the steering actuator so as to avoid the obstacle, the contact avoidance control unit is configured to apply a restriction on the obstacle avoidance operation depending on a detected gripping state detected by a steering wheel gripping state detection unit (8).