华南理工大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (11): 96-104.doi: 10.3969/j.issn.1000-565X.2015.11.014

• 汽车工程 • 上一篇    下一篇

新型功率分流混合动力汽车的动力性优化

王晨1,郭明林2,刘国志3   

  1. 1.同济大学 新能源汽车工程中心,上海201804 ; 2.上海交通大学 机械与动力工程学院,上海200240 ;3.科力远混合动力技术有限公司 系统控制科,上海201501
  • 收稿日期:2015-03-12 修回日期:2015-08-08 出版日期:2015-11-25 发布日期:2015-10-01
  • 通信作者: 王晨( 1986 - ),男,博士生,主要从事混合动力变速器控制技术研究 . E-mail:w_chen_ev@sina.com
  • 作者简介:王晨( 1986 - ),男,博士生,主要从事混合动力变速器控制技术研究 .
  • 基金资助:
    国家高技术研究发展计划(863计划)项目(2011AA11A207);国家自然科学基金资助项目(51275355) 

Power-split Hybrid Electric Vehicle Acceleration Performance Optimization

  • Received:2015-03-12 Revised:2015-08-08 Online:2015-11-25 Published:2015-10-01
  • Contact: 王晨( 1986 - ),男,博士生,主要从事混合动力变速器控制技术研究 . E-mail:w_chen_ev@sina.com
  • About author:王晨( 1986 - ),男,博士生,主要从事混合动力变速器控制技术研究 .
  • Supported by:
    Supported by the National High-Tech R&D Program(863 Program) of China (2011AA11A207) and the National Natural Science Foundation of China(51275355)

摘要: 动力性是整车的重要性能指标之一 . 为研究混合动力汽车的动力性优化问题,按照车速序列将全油门加速过程转化为多级决策过程,提出了动力性优化问题的动态规划求解方案;建立了新型功率分流混合动力汽车模型,基于 Matlab仿真平台得到了全局最优控制策略;同时,建立了双电机转矩图,定义电机速比及动力电池功率带,分析、归纳了全油门加速控制策略.整车动力性优化试验结果显示,优化后车辆的百公里加速时间减少
了15.7% ,基于动态规划算法的控制策略可显著提升整车动力性.

关键词: 混合动力总成, 加速控制, 混合动力汽车, 动态规划, 优化

Abstract: Acceleration performance is one of the important vehicle performance indicators. To solve the optimization problem of acceleration performance, dynamic programming problem is established by transforming the full-load acceleration progress to Multi-level decision-making process according to vehicle speed. Models for the novel power-split hybrid vehicle were established and the globally optimized control strategy was obtained on Matlab platform. Dual-motor torque figure was established while motor speed ratio and battery power band were defined to analyze the control strategy. The vehicle test result of optimization for power performance showed, 0ne-hundred-kilometers acceleration time was decreased by 15.7 percent. The control strategy based on dynamic programming significantly improves the vehicle acceleration performance.

Key words: hybrid powertrain, acceleration control, hybrid electric vehicle, dynamic programming, optimization

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