A steering control device includes a torque command value calculating unit configured to calculate a torque command value which is a target value of a motor torque when operation of a motor is controlled such that the motor torque is generated. The torque command value calculating unit includes a first component calculating unit configured to calculate a first component, a second component calculating unit configured to calculate a second component, and a torque component calculating unit configured to calculate a torque component. The first component calculating unit is configured to add a calculational hysteresis component to the first component such that hysteresis characteristics with respect to change of a specific state variable are provided. The torque component calculating unit is configured to perform calculation in a first calculation situation and calculation in a second calculation situation.

The embodiments of the present disclosure relate to a steering control device and method. Specifically, a steering control device according to the present disclosure may include a receiver configured to receive inclination angle information, vehicle speed information of a host vehicle, steering angle information of a steering wheel, steering angular velocity information of the steering wheel, and hysteresis torque information of the host vehicle from a plurality of sensors, a determiner configured to determine whether the host vehicle is located on a flat surface based on the inclination angle information, an estimator configured to estimate a loading weight based on a hysteresis torque value compared to a steering angular velocity value if determined that the host vehicle is located on the flat surface, and a controller configured to shift an assist map based on the estimated loading weight.

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.

Provided is a resolver capable of increasing an accuracy of a detected angle of the resolver. The resolver includes: a stator; and a rotor, wherein the rotor includes a plurality of salient poles; wherein the stator includes: a stator core having a plurality of teeth, and a plurality of winding groups each of which is provided on each of the plurality of teeth, wherein the winding groups are divided into two systems, wherein the numbers of turns of the excitation windings are distributed in a form of a sine wave of N.sub.e-th spatial order, wherein each of the numbers of turns of a first output windings and the numbers of turns of a second output windings are distributed in a form of a sine wave of |N.sub.e±N.sub.x|-th spatial order, and wherein the following expressions are satisfied,

N.sub.out1=N.sub.1 cos{|N.sub.e±N.sub.x|(i−1)/N.sub.s×2Π+α},

N.sub.out2=N.sub.1 cos{|N.sub.e±N.sub.x|(i−1)/N.sub.s×2Π+β}, and

90(deg)<|α−β|<140(deg).

The present disclosure discloses a computer-implemented method for a pitch angle recognition of a steering column in a vehicle. In aspects, the computer-implemented method includes measuring first acceleration data using a first acceleration sensor and measuring second acceleration data using a second acceleration sensor. The computer-implemented method further includes determining drift data of at least one of the first acceleration sensor and the second acceleration sensor based on the first acceleration data and the second acceleration data. Additionally, the computer-implemented method includes determining a pitch angle of the steering column based on the drift data, the first acceleration data, and the second acceleration data.

An electric power steering apparatus and a control method thereof are disclosed. One example electric power steering apparatus includes: a first motor, configured to provide steering assistance corresponding to rotation of a steering wheel, wherein the first motor is powered by two power supplies, and each of the two power supplies drives the first motor to generate part of the steering assistance; and a second motor, configured to provide additional steering assistance corresponding to the rotation of the steering wheel when the first motor loses part or all of the steering assistance, wherein the additional steering assistance comprises at least part of the steering assistance lost by the first motor, and the second motor is driven by one power supply coupled from the two power supplies, to generate the additional steering assistance.

A control device includes a current command value calculation unit configured to calculate a first current command value causing an actuator to generate steering assist torque, a correction value calculation unit configured to, when an absolute value of steering angle is greater than or equal to a threshold value, calculate a correction value for suppressing increase in an absolute value of the steering angle by correcting the steering assist torque, a correction unit configured to calculate a second current command value obtained by correcting the first current command value by the correction value, and a driving unit configured to drive the actuator, based on the second current command value. The correction value calculation unit calculates the correction value, based on first torque, the first torque changing nonlinearly with respect to steering angular velocity.

The present disclosure relates to an apparatus and a method for controlling a motor and includes: a receiver that receives vehicle vibration information or vibration request information; a determiner that determines vibration generation control information for generating a vibration having a specific magnitude and a specific phase in a steering motor including a first winding and a second winding based on the vehicle vibration information or the vibration request information; and a controller that performs control such that a vibration generation current is applied to the steering motor based on the vibration generation control information.

Proposed are a steer-by-wire system control apparatus and method, the apparatus including: a torque overlay control module configured to determine a target steering angle using a torque command input from a Lane Keeping Assistance System; and an actuator control module configured to control a position of a rack according to the target steering angle and thus to control a traveling direction of a vehicle.

Proposed is an apparatus for controlling a steer-by-wire steering system, the apparatus comprising: a steering angle sensor configured to detect a steering angle position; a steering position control command receiver configured to receive a steering position control command y2 from a designated external module; a processor configured to generate a steering angle position signal y1 based on the steering angle position from the steering angle sensor, compute a compensation gain x corresponding to column torque or motor electric current of a steering force actuator (SFA) when a driver's involvement occurs, compute a final steering position control command Y by reflecting the compensation gain x to the steering angle position signal y1 and the steering position control command y2, and output the final steering position control command Y to the steering force actuator (SFA).