Steer Control Arithmetic of Automatic Vehicle and the Present in Matlab

A steering radius arithmetic was put forward in this paper and a steer model of automatic vehicle based on steering theory was built.The steer control arithmetic of two-stage and three-stage in steering process which controlled by step drive were given also.The emluator experiment for steer process by Matlab were carried out,which lay the base for realizing steer control procedure develop of automatic navigation vehicle.