On-line Energy Distribution for Hybrid Electric Vehicles Using Optimal Power-split-ratio
This paper presents a near-optimal on-line energy control strategy based on power-split-ratio for hybrid electric vehicles.Firstly,a typical series-parallel hybrid electric vehicle model,Prius II,is developed and validated by ADVISOR.Secondly,the optimal energy distribution problem is initially solved by dynamic programming.Considering the frequent engine start-stop phases in existing energy management strategies,the objective of dynamic programming is to optimally balance the fuel consumption and the engine start-stop phases.Lastly,through analysis of the engine operating points obtained from dynamic programming results,the improved control rules are proposed by obtaining the engine optimal operating line and finding the optimal power-split-ratio in different driving situations.Moreover,A Matlab/Simulink model is built to evaluate the validity of the proposed control rules.Four different driving cycles are tested,and the results show 10%-30%performance improvement in comparison with the results in ADVISOR.
Energy management Power-split-ratio Hybrid electric vehicles Dynamic programming
MA Siwei YUAN Hongliang SONG Jipeng WANG Jun
Department of Control Science and Engineering,Tongji University,Shanghai 200000,P.R.China
国际会议
The 33th Chinese Control Conference第33届中国控制会议
南京
英文
7016-7021
2014-07-28（万方平台首次上网日期，不代表论文的发表时间）