LUO Shi1, ZHANG Dandan1, ZHU Changshun1, HOU Rong2

 

(1. Automotive and Traffic Engineering College of JiangSu University, Zhengjiang 212013, China;

 

2. Nanjing Jinlong Bus Manufacturing Co., Ltd., Nanjing 211200, China)

 

 

Abstract: Aiming at the key problem in the process of pure electric vehicle starting,namely the torque output of motor,kinetic analysis was carried out.Based on the open degree of accelerator pedal and the change rate of it,the fuzzy control principle was used to analysis of driver′s starting intention.Torque control strategies was developed on the basis of driver′s starting intention as well as the actual situation of the vehicle.Simulation models were setted up in Matlab/Simulink.The starting performance of pure electric vehicle was analyzed from three aspects:the impact degree and the vehicle speed and torque output value.The results show that the control strategies meet the requirements of the start up of pure electric car well including of the ability to speed up, and the requirements of comfort also the intent of the driver,it has a certain practical value.

 

Key words: electric vehicle; start up; fuzzy control; torque