A steering angle calculation apparatus includes an electronic control unit configured to calculate a steering angle based on a torque caused by a driver and at least one of vehicle information, surrounding environment information, and driver information.

A steering angle calculation apparatus includes an electronic control unit configured to calculate a steering angle based on a torque caused by a driver and at least one of vehicle information, surrounding environment information, and driver information.

According to one or more embodiments, a steer by wire steering system includes a handwheel actuator, a roadwheel actuator, and a resynchronization module to dynamically adjust handwheel position that is used for rack position reference calculation. The dynamic adjustment includes determining a desynchronization amount based on a difference in an actual handwheel position and a synchronized handwheel position. The dynamic adjustment further includes computing a handwheel adjustment using the desynchronization amount, a vehicle speed, and a handwheel speed. The dynamic adjustment further includes computing an adjusted handwheel position based on the handwheel adjustment and the actual handwheel position. The dynamic adjustment further includes updating the reference rack position based on the adjusted handwheel position. The dynamic adjustment is continuously repeated until the handwheel adjustment is substantially equal to zero.

A method of correcting torque offset of a motor-driven power steering motor, may include activating a lane following assist (LFA) function by an LFA unit of a vehicle, acquiring a comparison range for determining whether the torque offset of the motor included in a motor-driven power steering (MDPS) unit of the vehicle is present under a predetermined comparison condition during a first travel of the vehicle, and determining a relationship coefficient based on a current required torque value required by the LFA unit and a current measured torque value of the motor, acquired by applying the current required torque value by the MDPS unit, and determining whether torque offset of the motor is present when the determined relationship coefficient is within the comparison range during a second travel performed after the first travel and performed in a lane having the same lane condition as the first travel.

A control device controlling an electric power steering device that includes a motor generating a steering torque and applies a steering force to a steering mechanism of a vehicle, the control device including a control unit that receives a specific signal which indicates a requested value relating to an operation of the motor and which contains a specific type of requested value and an attribute of the requested value, and controls the motor based on the requested value indicated by the received specific signal.

A control device controlling an electric power steering device that includes a motor generating a steering torque and applies a steering force to a steering mechanism of a vehicle, the control device including a control unit that receives a specific signal which indicates a requested value relating to an operation of the motor and which contains a specific type of requested value and an attribute of the requested value, and controls the motor based on the requested value indicated by the received specific signal.

A driving assist device basically includes a sensor and a controller. The sensor detects a steering angle of the steering wheel installed in a vehicle. The controller determines an occupant's override with respect to driving assist control that is being executed in the vehicle based on the steering angle detected by the sensor. The controller determines a first motor current for canceling out a self-aligning torque generated in tires mounted on a vehicle while executing driving assist control, uses the first motor current to set a first threshold value that is greater than the first motor current, and determines that an override has occurred when a second motor current for controlling a turning angle of the tires in accordance with a steering angle is greater than the first threshold value.

A driving assist device basically includes a sensor and a controller. The sensor detects a steering angle of the steering wheel installed in a vehicle. The controller determines an occupant's override with respect to driving assist control that is being executed in the vehicle based on the steering angle detected by the sensor. The controller determines a first motor current for canceling out a self-aligning torque generated in tires mounted on a vehicle while executing driving assist control, uses the first motor current to set a first threshold value that is greater than the first motor current, and determines that an override has occurred when a second motor current for controlling a turning angle of the tires in accordance with a steering angle is greater than the first threshold value.

A regulating device for regulating the steering angle of a vehicle includes a first controller unit having at least one integrating component and configured to receive a control difference between first steering angle information, which is deduced from nominal steering angle information, and an actual steering angle. The first controller unit provides actuation information for a motor operating the steering. A compensation control circuit superposed on the first controller unit is provided. The compensation control circuit has a feedback path receives actuation information of the motor, the output torque of the motor, and/or information dependent on the output torque of the motor as the input variable and, based on the input variable, provides steering angle compensation information.

A regulating device for regulating the steering angle of a vehicle includes a first controller unit having at least one integrating component and configured to receive a control difference between first steering angle information, which is deduced from nominal steering angle information, and an actual steering angle. The first controller unit provides actuation information for a motor operating the steering. A compensation control circuit superposed on the first controller unit is provided. The compensation control circuit has a feedback path receives actuation information of the motor, the output torque of the motor, and/or information dependent on the output torque of the motor as the input variable and, based on the input variable, provides steering angle compensation information.