According to the actual structure of a electric automobile rack and pinion steering system

kinematic equation of the steering mechanism is deduced.By applying the mounting location of traversing mechanism at the automobile longitude as a variable

the ideal Ackerman angle and considering the transmission efficiency of steering force

the steering mechanism is optimized.The front wheel steering angle is close to the Ackerman angle after optimization and the optimized result verification by building virtual prototype in ADAMS is carried out.The result shows that the optimization is effective and reliable.