STEERING CONTROL DEVICE FOR VEHICLE

PROBLEM TO BE SOLVED: To provide a steering control device for a vehicle in which a mass-produced steering device is employed as it is, thus suppressing a cost increase, ensuring continuous control and improving steering feel. SOLUTION: A steering actuator 11 is controlled by a control part 30. The steering actuator 11 inputs mechanical steering torque into a steering system of the vehicle independently of artificial steering torque from a driver. At this time state quantity sensors 21-23 detect vehicular state quantities α, V, r having influence on the steering system. According to the detected state quantities α, V, r, among disturbances applied to the steering system, the control part 30 separates low frequency components lower than a reference frequency from high frequency components higher than the reference frequency and estimates the disturbances, whereby output torque from the steering actuator 11 is feedback controlled to control the disturbances based on the estimated disturbances.