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吉林大学学报(工学版) ›› 0, Vol. ›› Issue (): 1160-1164.doi: 10.7964/jdxbgxb201305002

• paper • Previous Articles     Next Articles

Determination of the best separation factor for power-split hybrid electric vehicle based on instantaneous efficiency

WANG Qing-nian, WANG Wen, WANG Peng-yu, RAO Miao-tao, LI Zhi-xuan   

  1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022
  • Received:2013-08-29 Revised:2013-08-29
  • Contact: 王鹏宇(1979- ),男,讲师,博士.研究方向:节能与新能源汽车.E-mail:wangpy@jlu.edu.cn E-mail:wangpy@jlu.edu.cn

Abstract: This paper describes a three-step iteration method for determining the best separation factor of power-split hybrid electric vehicle based on system instantaneous efficiency. The function of the relationship between the best separation factor and the vehicle speed and power demand is obtained. Then the instantaneous optimal control algorithm of power-split hybrid electric vehicles is developed based on the best separation factor. As compared to the control algorithm based on the engine optimal curve, economical efficiency of the instantaneous optimal control algorithm based on optimal separation factor of system is improved significantly.

CLC Number: 

  • U462.3
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