Research on Shift Control of Two-gear Dual Clutch Transmission in Pure Electric Vehicles

Qinglin Dai; Zhongli Zhang; Yong Chen; Yi Wang; Sen Xiao

doi:10.16578/j.issn.1004.2539.2022.09.001

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Research on Shift Control of Two-gear Dual Clutch Transmission in Pure Electric Vehicles

Theory·Reserach | 更新时间：2022-09-26

- Research on Shift Control of Two-gear Dual Clutch Transmission in Pure Electric Vehicles
- Journal of Mechanical Transmission Vol. 46, Issue 9, Pages: 1-10(2022)
- 作者机构：
  
  1.河北工业大学天津市新能源汽车动力传动与安全技术重点实验室，天津 300130
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2022.09.001
  CLC：
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代青林,张中理,陈勇等.纯电动汽车两挡双离合变速器换挡控制研究[J].机械传动,2022,46(09):1-10.

Dai Qinglin,Zhang Zhongli,Chen Yong,et al.Research on Shift Control of Two-gear Dual Clutch Transmission in Pure Electric Vehicles[J].Journal of Mechanical Transmission,2022,46(09):1-10.
代青林,张中理,陈勇等.纯电动汽车两挡双离合变速器换挡控制研究[J].机械传动,2022,46(09):1-10. DOI： 10.16578/j.issn.1004.2539.2022.09.001.

Dai Qinglin,Zhang Zhongli,Chen Yong,et al.Research on Shift Control of Two-gear Dual Clutch Transmission in Pure Electric Vehicles[J].Journal of Mechanical Transmission,2022,46(09):1-10. DOI： 10.16578/j.issn.1004.2539.2022.09.001.

摘要

纯电动汽车两挡干式双离合器自动变速器通过控制两离合器的接合与分离完成换挡。由于离合器的摩擦因数随温度改变而变化，采用参数自适应方法对摩擦因数进行了实时在线参数估计。根据换挡动力学模型，设计了一种基于扩张状态观测器的反步控制器，通过给出电机与1挡离合器从动盘的目标转速，将换挡过程转化为转速跟踪问题。通过仿真和硬件在环验证了该控制器在外界干扰的情况下仍能有效保证自动变速器的换挡品质，且具有良好的鲁棒性。

Abstract

Pure electric vehicle two-gear dry dual clutch automatic transmission completes the shift through the control of two clutches engagement and separation. Since the friction coefficient of clutch changes with temperature， the parameter adaptive method is used to estimate the friction coefficient online in real time. According to the shifting dynamics model， a backstepping controller based on the extended state observer is designed， and the shifting process is transformed into speed tracking problem by giving the target speed of the motor and the first gear clutch disk. Simulation and hardware-in-the-loop verify that the controller can effectively ensure the shift quality of automatic transmission under the condition of external interference， and has good robustness.

关键词

双离合器变速器扩张状态观测器鲁棒控制换挡品质

Keywords

Dual clutch transmissionExtended state observerRobust controlShift quality

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