Patent ID: 6859704

Claim:
A self-alignment torque correcting apparatus for a vehicle, comprising: a driving source that confers a driving force to a steering mechanism of the vehicle; a steering angle detecting portion that detects a steering angle of an operating member; a vehicle speed detecting portion that detects a speed of the vehicle; and a self-alignment torque compensating portion that compensates for a surplus and a shortage of self-alignment torque of the vehicle by controlling the driving source based on the steering angle detected by the steering angle detecting portion and the vehicle speed detected by the vehicle speed detecting portion, the self-alignment torque compensating portion including: a steering-angle-adaptive correcting portion that generates a steering-angle-adaptive corrective value corresponding to the steering angle detected by the steering angle detecting portion; a vehicle-speed-adaptive correcting portion that generates a corrective gain corresponding to the vehicle speed detected by the vehicle speed detecting portion; and a multiplication processing portion that computes a corrective value by multiplying the steering-angle-adaptive corrective value generated in the steering-angle-adaptive correcting portion by the corrective gain generated in the vehicle-speed-adaptive correcting portion, wherein the self-alignment torque compensating portion compensates for the surplus and the shortage of the self-alignment torque of the vehicle by controlling the driving source based on the corrective value computed in the multiplication processing portion.