In this paper, a shift control algorithm to improve the shift quality was proposed for an electric vehicle with a dry-type two-speed dual-clutch transmission. To analyse the shift characteristics of the target electric vehicle, dynamic models for the two-speed dual-clutch transmission and the drivetrain were developed. Based on the dynamic models, dynamic equations for the transient shift states were derived, and a shift performance simulator was constructed. From analysis of the transient shift state, it was found that the fluctuations in the driveshaft torque, which cause the shift quality to deteriorate, occurred as a result of the inertia torque. Based on the analytical results, a control algorithm was proposed using traction motor torque control as well as shift actuator stroke control. For traction motor control, a compensation torque was applied during the inertia phase. In that phase, actuator stroke control was performed by considering the torque margin and the kissing point during the torque phase instead of the existing map-based control. To evaluate the performance of the proposed control algorithm, a test bench for the target electric vehicle was developed. From the experimental results, it was found that the variations in the driveshaft torque and in the jerk were reduced by the proposed control algorithm, which thereby provides an improved shift quality.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Shift control of a dry-type two-speed dual-clutch transmission for an electric vehicle




    Publication date :

    2016




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    RVK:    ZO 4200: / ZO 4200
    BKL:    55.20 / 55.20 Straßenfahrzeugtechnik
    Local classification TIB:    275/7025



    Shift control of a dry-type two-speed dual-clutch transmission for an electric vehicle

    Hong, Sungwha / Son, Hanho / Lee, Seulgi et al. | SAGE Publications | 2016


    Shift Control for Two-Speed Dry Dual-Clutch Transmission of Pure Electric Vehicles

    Dai, Qinglin / Chen, Yong / He, BoLin et al. | British Library Conference Proceedings | 2022


    Shift Control for Two-Speed Dry Dual-Clutch Transmission of Pure Electric Vehicles

    He, BoLin / Dai, Qinglin / Xiao, Sen et al. | SAE Technical Papers | 2022


    Shift control of a dry-type two-speed duel-clutch transmission for an electric vehicle

    Hong,S. / Son,H. / Lee,S. et al. | Automotive engineering | 2016


    Shift control method for hybrid vehicle having dual clutch transmission

    CHO SUNG HYUN | European Patent Office | 2020

    Free access