Under the conditions of the requirements of vehicle for disconnect steering system and meeting the steering performance

the objective function of tracking the desirable Ackman Angle is established.By using optimal toolbox of MATLAB

the optimization modeling and solving are carried out to seek the optimal solution of some parameters

as the length of trapezoid arm

transmission angle

install offset distance and so on.Relative to the original design value

it is accuracy to guarantee the steering angle in commonly range

lowers the car’s tire wear at a high speed for the wheels turning errors

and the GUI interface is also made

the parameters of visual input and the output of optimum results are achieved.Finally

an example is used to verify the correctness of the model.