汽车工程 ›› 2022, Vol. 44 ›› Issue (3): 426-433.doi: 10.19562/j.chinasae.qcgc.2022.03.015

所属专题: 新能源汽车技术-电驱动&能量管理2022年

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电驱动系统台架负载模拟精度补偿算法研究

王冠峰,宋强(),赵卢楷   

  1. 1.北京理工大学,电动车辆国家工程实验室,北京  100081
    2.北京电动车辆协同创新中心,北京  100081
  • 收稿日期:2021-10-18 修回日期:2021-11-16 出版日期:2022-03-25 发布日期:2022-03-25
  • 通讯作者: 宋强 E-mail:songqiang@bit.edu.cn
  • 基金资助:
    国家重点研发计划(2016YFB0100605)

Research on Compensation Algorithm for Load Simulation Accuracy of Electric Drive System Test Bench

Guanfeng Wang,Qiang Song(),Lukai Zhao   

  1. 1.Beijing Institute of Technology,National Engineering Laboratory for Electric Vehicles,Beijing  100081
    2.Collaborative Innovation Center for Electric Vehicles in Beijing,Beijing  100081
  • Received:2021-10-18 Revised:2021-11-16 Online:2022-03-25 Published:2022-03-25
  • Contact: Qiang Song E-mail:songqiang@bit.edu.cn

摘要:

为保证道路负载的模拟精度并实现电驱动系统的硬件在环试验,本文中提出一种台架试验的动态补偿算法。首先,基于对负载模拟问题的分析,采用了台架逆模型算法。接着,为改善转矩的动态响应,采用卡尔曼滤波来实现模型误差的精确补偿。最后,基于对台架精度的分析,提出了精度耦合补偿算法,并经台架试验验证。结果表明:循环工况下,补偿算法能很好地实现转速跟随,而在起步工况可提高台架试验精度。

关键词: 电动汽车, 电驱动系统, 负载模拟, 台架控制, 补偿算法

Abstract:

In order to ensure the accuracy of road load simulation and realize the hardware-in-the-loop test of electric drive system, a dynamic compensation algorithm of bench test is proposed in this paper. Firstly, based on the analysis on load simulation problem, the test bench inverse model algorithm is adopted. Then, for improving torque dynamic response, Kalman filter is adopted to achieve accurate compensation of model errors. Finally, on the basis of the analysis on bench accuracy, accuracy coupling compensation algorithm is put forward and verified by bench test. The results show that compensation algorithm can well achieve speed following in cycle conditions and enhance the accuracy of bench test in starting condition.

Key words: electric vehicles, electric drive system, load simulation, bench control, compensation algorithm