Optimization study of automatic transmission power shift schedule

Presented in this paper is the shift points determining method of the power shift schedule when the traction power curve does not intersect under the adjacent shift of the same throttle. Established the transmission system mathematics model. Built a software in-the-loop simulation platform with Matlab/Simulink, and simulate the process of the vehicle continuous upshift. The simulation results showed that the power shift schedule can improve the power of vehicles. At the same time, its speed is much higher than the speed which is the traditional power shift schedule to reach.