Method and apparatus for learning neutral position of vehicle steering angle.

摘要

A novel method and apparatus for learning the neutral position of vehicle steering angle are disclosed, in which first neutral position desition means desides that the steering shaft is at neutral position when a running speed detector (80,81) detects that the vehicle speed is not less than a predetermined threshold level, that the difference in peripheral speed between the right and left drive wheels is smaller than a predetermined first straight-running threshold value and also when a steering shaft reference position sensor (84) continues to detect a reference position of the steering shaft for at least a first count time. The vehicle steering angle is computed (15) on the basis of the angular displacement from the neutral position thus learned.