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汽车安全与节能学报 ›› 2021, Vol. 12 ›› Issue (1): 106-115.DOI: 10.3969/j.issn.1674-8484.2021.01.011

• 汽车节能与环保 • 上一篇    下一篇

双电机混合动力车辆串并联驱动模式切换控制方法

祝浩(), 张天强(), 刘元治, 徐家良   

  1. 中国第一汽车集团公司 新能源开发院,长春 130013,中国
  • 收稿日期:2020-12-10 出版日期:2021-03-31 发布日期:2021-04-02
  • 作者简介:祝浩(1985—),男(汉),湖北,副高级工程师。E-mail: zhuhao@faw.com.cn
    张天强(1976—),男(汉),吉林,高级工程师。E-mail: zhangtianqiang@faw.com.cn

Control method of switching between series and parallel drive modes of dual-motor hybrid electric vehicle

ZHU Hao(), ZHANG Tianqiang(), LIU Yuanzhi, XU Jialiang   

  1. New Energy Development Institute, China FAW Group Corporation, Changchun 130013, China
  • Received:2020-12-10 Online:2021-03-31 Published:2021-04-02

摘要:

为实现双电机混联构型混合动力车辆(HEV)的串并联切换控制,通过对双电机混联构型进行串并联驱动模式分析,提出一种通过三动力源协调控制的无动力中断切换方法。将串联到并联切换过程分为发动机工作点转移、离合器结合、动力源切换3个阶段,将并联到串联行驶切换过程划分为动力源切换、离合器打开、发动机工作点转移3个阶段,并通过仿真分析和实车测试对控制方法进行了验证。结果表明:在时速80 km/h进行串联到并联切换时,切换过程历时1.76 s,切换冲击度小于10 m/s 3,相同时速进行并联到串联切换时,切换过程历时2.57 s, 切换冲击度小于5 m/s 3,整个切换过程,均没有出现动力中断现象。因此,本控制方法,能够顺利地完成串并联切换控制。

关键词: 混合动力车辆 (HEV), 双电机构型, 串并联切换, 控制策略

Abstract:

A non-power interrupt switching method was proposed based on a coordinated control of three power sources with analyzing of series and parallel driving modes for a dual-motor hybrid electric vehicle (HEV) to realize a series-parallel switching control of the dual-motor HEV. The series-to-parallel switching process includes three stages: engine operating point transferring, clutch coupling, and power source switching. The parallel-to-series switching process includes three stages: power source switching, clutch opening, and engine operating point transferring. The results show that the vehicle tests at a speed of 80 km/h verify the control method, the series-to-parallel switching process lasts 1.76 s, the switching impact is less than 10 m/s 3. and the parallel-to- series switching process lasts 2.57 s, the switching impact is less than 5 m/s 3, and there is no power interruption during the whole switching process. Therefore, the series-parallel switching control method can be successfully implementedy.

Key words: hybrid electric vehicle (HEV), dual-motor structure, series-parallel switching, control method

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