Performance Analysis of pure electric

vehicle With Ultra-capacitors

Wang Zhifu

(Electric Vehicle Center of Engineering and Technology, Beijing Institute of Technology, Beijing 100081)

Chen Wei

(BYD Auto Ltd., Shanghai 210016)

Ye Huiping  Shi Jianjun

(Electric Vehicle Center of Engineering and Technology, Beijing Institute of Technology, Beijing 100081)

Abstract: A model of pure electric vehicle (PEV) with the ultra-capacitors, based on the software of Matlab/Simulink, is introduced firstly. The precision of the model is acceptable by comparison with the simulation results and the actual data under the CYC_CONST_45. The work flow of the multi-source electric vehicle is olso presented laconically. The result of PEV dynamical performance, economic performance, including even speed, mutative speed, accelerating/decelerating is analyzed. The performance analysis shows that ultra-capacitors can make the performance of PEV better, protect the battery stack and prolong the distance of PEV.

Key words: Pure electric vehicle (PEV)  Ultra-capacitors  Simulation  Performance analysis

CLC No: U469

国家863计划资助项目(A2202501800). Received 20050106, received in revised form 20050621