• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (8): 165-176.doi: 10.3901/JME.2018.08.165

• 运载工程 • 上一篇    下一篇

电动汽车双模耦合驱动系统变模冲击抑制方法

张利鹏1,2, 谷定杰1, 祁炳楠3, 董闯闯1   

  1. 1. 燕山大学车辆与能源学院 秦皇岛 066004;
    2. 清华大学汽车安全与节能国家重点实验室 北京 100084;
    3. 燕山大学电气工程学院 秦皇岛 066004
  • 收稿日期:2017-05-10 修回日期:2017-10-06 出版日期:2018-04-20 发布日期:2018-04-20
  • 通讯作者: 祁炳楠(通信作者),女,1981年出生,硕士,实验师。主要研究方向为汽车传动控制技术。E-mail:dreamqbn@163.com
  • 作者简介:张利鹏,男,1979年出生,博士后,副教授。主要研究方向为车辆动力学与控制、新能源汽车复合传动。E-mail:evzlp@ysu.edu.cn;董闯闯,男,1993年出生,硕士研究生。主要研究方向为新能源汽车复合传动。
  • 基金资助:
    国家自然科学基金(51405259,51775478)、河北省高等学校青年基金(QN2015056)和河北省自然科学基金(E2016203173)资助项目。

Impact Reduction Method for Electric Vehicle Dual-mode Coupling Drive System with Modes Shift

ZHANG Lipeng1,2, GU Dingjie1, QI Bingnan3, DONG Chuangchuang1   

  1. 1. School of Vehicle and Energy, Yanshan University, Qinhuangdao 066004;
    2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084;
    3. School of Electrical Engineering, Yanshan University, Qinhuangdao 066004
  • Received:2017-05-10 Revised:2017-10-06 Online:2018-04-20 Published:2018-04-20

摘要: 电动汽车双模耦合驱动系统实现集中式驱动系统与分布式驱动系统的一体化集成,可以大幅提高整车的动力学性能,但其驱动模式切换会造成车辆的平顺性下降。为解决上述问题,提出并验证基于机电耦合控制的变模冲击抑制方法。针对双模耦合驱动系统的独特构型,建立其传动总成模型,揭示出加装扭转减振器以减小变模冲击的动力学机理;综合考虑变模时间限制和冲击度要求,根据前期系统参数优化结果拟合得到变模执行机构驱动电机的角位移曲线;建立变模过程的预测函数控制器,实现对变模执行机构驱动电机拟合角位移的跟踪控制,完成了驱动模式的平滑切换。研究结果表明,将扭转减振器与预测函数控制器相结合进行机电耦合控制,可以在保证变模时间需求的前提下大幅减小系统冲击,达到所需的变模平顺性指标要求。

关键词: 电动汽车, 模式切换, 扭转减振器, 双模耦合驱动, 预测函数控制

Abstract: The dual-mode coupling drive system integrates the functions of the centralized drive system and the distributed drive system, which can greatly improve the electric vehicle dynamics performance, but the vehicle ride comfort is decreased due to the drive modes switch. In order to solve the above problem, the modes shift impact reduction method based on an electromechanical coupling control is proposed and verified. Firstly, the transmission system model is built based on the unique configuration of the dual-mode coupling drive system, and the dynamics mechanism of reduction modes shift impact by the addition of torsional dampers is revealed. Then, based on the optimization result of the system parameters, the angular displacement curve of the actuator drive motor is obtained by considering the limit of time and impact of the modes shift. At last, based on a predictive function controller that is designed for the modes shift, the angular displacement tracking control of the actuator motor is achieved and the modes shift is smoothly completed. The research shows that, on the premise of ensure the modes shift time, the impact of the dual-mode coupling drive system can be effectively reduced by the electromechanical coupling control with combining the torsional damper with the predictive functional controller, and the vehicle ride comfort indicators are well met.

Key words: dual-mode coupling drive, electric vehicle, mode shift, predictive function control, torsional damper

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