Patent attributes
A steering control apparatus of an SBW system may include: a power motor configured to output a steering force in the SBW system; a power motor position sensor configured to sense an angular position of the power motor; a steering angle sensor configured to sense a steering angle of a steering wheel; a vehicle velocity sensor configured to sense a vehicle velocity; and a power motor control unit configured to calculate a target steering angle from the steering angle, and drive the power motor according to the target steering angle. The power motor control unit may calculate a feedback steering angle reflecting an output angle of a wheel, calculate a compensation steering angle for variably controlling the output angle of the wheel based on the feedback steering angle and the vehicle velocity, and corrects the target steering angle using the compensation steering angle.
