重庆理工大学学报（自然科学版）2018，Vol.32Issue(3)：10-17,8.DOI:10.3969/j.issn.1674-8425(z).2018.03.002
基于极小值原理的增程式客车能量管理问题规律分析
Analysis for the Energy Management Problem of Extended-Range Electric City Buses Based on Pontryagin's Minimum Principle
摘要
Abstract
In order to improve the fuel economy of extended-range electric city buses,using the Pontryagin's minimum principle to design on-line energy manage strategies is an effective solution, however,the challenge lies in how to avoid the iteration calculation of the co-state variable.Based on reasonable assumptions for battery characters and its output power,the state and adjoint equations are applied to deduce the equation between the co-state variable and the battery open-circuit voltage. Through solving the equation approximately,it is concluded that the ratio of the two variables could be seemed constant.An on-line energy management strategy,which is designed based on such conclusion,is applied over different real-world driving cycles,the results show that the performance difference of this strategy is less than the 0.5% compared with the global optimal level.Therefore, this strategy is an optimal energy management strategy for on-line applications.关键词
能量管理/极小值原理/增程式电动汽车/开路电压/协态变量Key words
energy optimization/minimum principle/extended-range electric vehicles/open-circuit voltage/co-state variable分类
交通运输引用本文复制引用
杜光乾,谢海明,卢紫旺,黄勇..基于极小值原理的增程式客车能量管理问题规律分析[J].重庆理工大学学报（自然科学版）,2018,32(3):10-17,8.基金项目
上海汽车工业科技发展基金会1530项目 （）
