Variable speed control system is very important in vehicle man-machine interface based on shift performance evaluation system of shift test, respectively in the two modes and the static and dynamic measure of force and displacement of the shifting handle place, to provide objective data support for the vehicle shift performance, so as to assist the transmission engineer to conduct the thorough research to the shift process for vehicles with shifting problems, can also be combined with the geometric model analysis the cause of the problem and solution test content: 1 static shift man-machine performance test: (2) dynamic gear shifting and displacement characteristics (3) pedal force travel test: clutch pedal travel relationship characteristics (4) brake pedal travel relationship characteristics (5) acceleration pedal travel relationship characteristics