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Powertrain dynamics and control of a two speed dual clutch transmission for electric vehicles

机译：电动汽车双速双离合器变速器的动力系统动力学和控制

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摘要

The purpose of this paper is to demonstrate the application of torque based powertrain control for multi-speed power shifting capable electric vehicles. To do so simulation and experimental studies of the shift transient behaviour of dual clutch transmission equipped electric vehicle powertrains is undertaken. To that end a series of power-on and power-off shift control strategies are then developed for both up and down gear shifts, taking note of the friction load requirements to maintain positive driving load for power-on shifting. A mathematical model of an electric vehicle powertrain is developed including a DC equivalent circuit model for the electric machine and multi-body dynamic model of the powertrain system is then developed and integrated with a hydraulic clutch control system model. Integral control of the powertrain is then performed through simulations on the develop powertrain system model for each of the four shift cases. These simulation results are then replicated on a full scale powertrain test rig. To evaluate the performance of results shift duration and vehicle jerk are used as metrics to demonstrate that the presented strategies are effective for shift control in electric vehicles. Qualitative comparison of both theoretical and experimental results demonstrates reasonable agreement between simulated and experimental outcomes.
机译：本文的目的是演示基于扭矩的动力总成控制在多速可动力换挡的电动汽车中的应用。为此，对装有双离合器变速器的电动汽车动力总成的换档瞬态行为进行了仿真和实验研究。为此，随后开发了一系列用于升档和降档的动力接通和动力断开控制策略，同时注意摩擦负载要求，以保持动力接通的正驱动负载。开发了电动车辆动力总成的数学模型，其中包括电机的直流等效电路模型，然后开发了动力总成系统的多体动力学模型，并将其与液压离合器控制系统模型集成在一起。然后，通过对开发的动力总成系统模型的仿真，对四个变速箱的每一个进行动力总成控制。然后，将这些仿真结果复制到完整的动力总成试验台上。为了评估结果的性能，以换档持续时间和车辆晃动为指标，以证明所提出的策略对于电动汽车的换档控制是有效的。理论和实验结果的定性比较表明，模拟和实验结果之间存在合理的一致性。

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  • 来源
    《Mechanical systems and signal processing》 |2017年第2期|1-15|共15页
  • 作者

    Paul Walker; Bo Zhu; Nong Zhang;

  • 作者单位

    School of Electrical, Mechanical and Mechatronic Systems, Faculty of Engineering and Information Technology, University of Technology Sydney, 15 Broadway, 2007 Ultimo, NSW, Australia;

    School of Electrical, Mechanical and Mechatronic Systems, Faculty of Engineering and Information Technology, University of Technology Sydney, 15 Broadway, 2007 Ultimo, NSW, Australia;

    School of Electrical, Mechanical and Mechatronic Systems, Faculty of Engineering and Information Technology, University of Technology Sydney, 15 Broadway, 2007 Ultimo, NSW, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Electric vehicle; Powertrain; Dual clutch transmission; Shift control;

    机译：电动汽车;动力总成双离合器变速箱;换档控制;

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