Aiming at the special requirements of vehicle metal v-belt continuously variable transmission ratio control
the fuzzy-self adjusting PID speed ratio control system combining the advantages of both PID and fuzzy control is designed.And a CVT vehicle simulation platform is established by Matlab/Simulink.Through the simulation by this method
the results show that the fuzzy-self adjusting PID speed ratio control can track the target speed ratio well and has a good dynamic response and high control accuracy of steady state.