To reduce the driveline oscillations during the shifting process of electric delivery vans (EDVs), this article proposes a swift and smooth disengagement strategy for the clutch in a dual-speed transmission (DST) system. Firstly, a novel electromechanical clutch actuator (ECA) for the proposed DST is designed and modeled. Then the structure of the DST for EDVs is briefly introduced, and the mathematical model of the DST is derived using the Lagrange method. Since the driveshaft torque is essential and unmeasurable, a Kalman filter is designed to estimate this value. Then the clutch disengagement strategy is proposed based on the estimated torque. Simulation studies are conducted under both normal and disturbed conditions to test the performance of the proposed algorithm. In addition, the processor-in-the-loop (PIL) experiment verifies the real-time ability of the whole algorithm. Results demonstrate that the proposed observer performs well in torque estimation and that the clutch disengagement strategy is effective in attenuating driveline oscillations during shifting.


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    Titel :

    Clutch Disengagement Control of a Dual-Speed Transmission for Electric Vans


    Weitere Titelangaben:

    Sae Int. J. Commer. Veh


    Beteiligte:
    Zhao, Xinxin (Autor:in) / Khajepour, Amir (Autor:in) / Yang, Jue (Autor:in) / Tan, Senqi (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    26.02.2021


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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