A motor includes a rotor, a stator including coils defined by windings of coil wires, a coil support into which the coil wires are inserted, a bearing supporting the shaft, a holder with a through-hole that holds both the bearing and the coil support. The coil support includes a base on the top surface of the stator, and a coil support portion extending axially upward from the base, at least a portion of which is located in the through-hole. The base is fitted to the stator through a gap.

A motor includes a rotor, a stator including coils defined by windings of coil wires, a coil support into which the coil wires are inserted, a bearing supporting the shaft, a holder with a through-hole that holds both the bearing and the coil support. The coil support includes a base on the top surface of the stator, and a coil support portion extending axially upward from the base, at least a portion of which is located in the through-hole. The base is fitted to the stator through a gap.

A steering device according to one aspect of the disclosure includes: a speed reducer configured to decelerate a rotational power input from one surface side while increasing a torque and output rotation from an output section disposed on the other surface side; a motor provided on the one surface side and configured to input the rotational power to the speed reducer; and a control device for controlling the motor. The motor includes a rotor for generating the rotational power. The rotor includes a rotor output shaft disposed coaxially with an output axis of the output section. The motor inputs the rotational power from one end side of the rotor output shaft to the speed reducer. The control device is disposed on the other end side of the rotor output shaft coaxially with the rotor output shaft and includes a sensing unit for sensing rotation of the rotor.

A steering device includes: a steering unit steered by a driver; a drive unit rotating for imparting an auxiliary force to the steering unit; a first control unit calculating a load torque that corresponds to a reaction force from a road surface and is estimated based on a value measured in the steering unit and the drive unit, the first control unit also calculating a target steering torque for the steering unit based on the calculated load torque; and a second control unit calculating the auxiliary force of the drive unit to achieve the target steering torque calculated by the first control unit.

A steering system includes a housing, a steering operation shaft that is housed in the housing and configured to move in an axial direction to steer right and left steered wheels, a first drive source that generates a first drive force, a second drive source that generates a second drive force, a first power transfer unit that applies an axial force to the steering operation shaft with the first drive source, a second power transfer unit that applies an axial force to the steering operation shaft with the second drive force, a position detection sensor that is provided in the housing and detects an axial position of the steering operation shaft, and a control device that controls the first drive source and the second drive source using a detection result of the position detection sensor.

A steering system includes a housing, a steering operation shaft that is housed in the housing and configured to move in an axial direction to steer right and left steered wheels, a first drive source that generates a first drive force, a second drive source that generates a second drive force, a first power transfer unit that applies an axial force to the steering operation shaft with the first drive source, a second power transfer unit that applies an axial force to the steering operation shaft with the second drive force, a position detection sensor that is provided in the housing and detects an axial position of the steering operation shaft, and a control device that controls the first drive source and the second drive source using a detection result of the position detection sensor.

The disclosure relates to a braking system for a vehicle having at least four brakable wheels. The braking system comprises at least four brake actuator units, each of which can be associated with one of the wheels of the vehicle, as well as a first electronic control unit and a second electronic control unit. Each brake actuator unit has its own signal line via which the relevant brake actuator unit is connected in terms of signaling to the first control unit and the second control unit, so that each of the brake actuator units can be actuated both by the first control unit and by the second control unit.

A yaw stability control system is provided for a motor vehicle. The system includes one or more cameras, a plurality of wheel speed sensors, a yaw angle sensor, and a steering angle sensor. The system further includes an electric motor connected to a reaction wheel. The system further includes a processor and a memory including instructions such that the processor is programmed to: determine a desired yaw angle of the motor vehicle based on a video signal, speed signals, a yaw signal, and a steering signal. The processor is further programmed to generate an actuation signal associated with the desired yaw angle. The electric motor angularly rotates the reaction wheel at a predetermined angular rate in a predetermined rotational direction to produce a counter-acting torque that rotates the motor vehicle to the desired yaw angle, in response to the electric motor receiving the actuation signal from the processor.

A motor driven power steering system includes: a power source for generating a steering assistance force assisting the steering of a vehicle; a transfer gear positioned between a power source and a column for transferring the steering assistance force generated by the power source to the column; a parameter estimation unit for estimating a friction parameter of a dynamic friction model based on the actual friction torque actually generated in the transfer gear; and a state estimation unit for calculating a state variable of the dynamic friction model based on a contact surface moving speed of the transfer gear and for estimating expected friction torque according to the dynamic friction model by using the calculated state variable and the friction parameter of the dynamic friction model estimated by the parameter estimation unit.

Systems and methods for detecting magnetic turn counter errors with redundancy are provided. In one aspect, a magnetic field turn sensor system includes a magnetic field angle sensor having a sine bridge and a cosine bridge and first to third comparators configured to compare the outputs from the sine and cosine bridges. The system further includes a processor configured to receive outputs from each of the first to third comparators, determine that a combination of the outputs from the first to third comparators corresponds to an invalid state, and indicate a fault in response to determining that the combination of the outputs from the first to third comparators corresponds to the invalid state.