Integrated control strategy of CVT with changing frictional force of the road

Considering that the frictional force of the road is often changing,an integrated control strategy for the car equipped with continuously variable transmission(CVT) is proposed based on the working conditions' requirements for dynamic performance and economic efficiency.The Matlab/Simulink whole vehicle model is established based on the bench test of engine.The results of simulation for the typical working conditions show that the integrated control mode is better than the dynamic mode and the economic mode,and has high economic efficiency and good dynamic performance when the frictional force of the road is changing.Thus the integrated control strategy is proved to be feasible.