汽车工程 ›› 2018, Vol. 40 ›› Issue (9): 1076-1082.doi: 10.19562/j.chinasae.qcgc.2018.09.011

• • 上一篇    下一篇

混合动力汽车的转速转矩双同步换挡控制*

胡宇辉1,乐新宇2,吴洪振2,席军强1   

  1. 1.北京理工大学智能车辆研究所,北京 100081;
    2.北京理工大学机械与车辆学院,北京 100081
  • 收稿日期:2017-08-02 出版日期:2018-09-25 发布日期:2018-09-25
  • 通讯作者: 胡宇辉,副教授,硕士生导师,E-mail:huyuhui@bit.edu.cn
  • 基金资助:
    国家自然科学基金青年科学基金(51505029)资助

Gear-shifting Control with Speed / Torque
Double-synchronization for Hybrid Electric Vehicles

Hu Yuhui1, Yue Xinyu2, Wu Hongzhen2 & Xi Junqiang1   

  1. 1.Research Center of Intelligent Vehicle,Beijing Institute of Technology, Beijing 100081;
    2.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081
  • Received:2017-08-02 Online:2018-09-25 Published:2018-09-25

摘要: 针对常规的混合动力汽车换挡控制存在同步速差和挂挡冲击的问题,提出了一种转速转矩双同步的换挡控制方法。在转速同步过程中,通过从动端的转速变化来实时调整目标转速,并根据同步速差来调节电机输出转矩,使主从动端转速同步,且具有相同的运动趋势,从而减小换挡冲击。为改善转矩闭环PID控制的性能,采用模糊RBF神经网络来调整PID控制参数,提高电机转矩跟踪的快速性和准确性。实验结果表明,与常规方法相比,转速转矩双同步换挡不仅可减少换挡时间,还能显著减小换挡冲击。

关键词: 混合动力汽车, 换挡控制, 模糊RBF神经网络, 转速转矩双同步, 换挡冲击

Abstract: Aiming at the existing problems of synchronizing speed difference and shifting shock in conventional gear-shifting control for hybrid electric vehicle, a new way of gear-shifting control with speed / torque double-synchronization is proposed. During speed synchronization, the target speed is adjusted based on the speed change at driven end, and the output torque of motor is adjusted according to synchronizing speed difference so as to make the speeds at both driving and driven ends synchronize, with same moving tendency, for reducing shifting shock. To improve the performance of torque closed-loop PID control, fuzzy RBF neural network is adopted to tune the parameters of PID control, with the rapidity and accuracy of motor torque tracing enhanced. The results of experiment show that compared with conventional control, the gear-shifting control with speed/torque double-synchronization can not only shorten shifting time but also significantly reduce shifting shock

Key words: hybrid electric vehicles, gear-shifting control, fuzzy RBF neural network, speed/torque double-synchronization, shifting shock