In this study, to investigate the electromechanically coupled dynamics of a dual-motor electric drive system (DEDS) of hybrid electric vehicles under typical conditions. Considering the time-varying stiffness of gears, a dynamic model of the gear system and permanent magnet synchronous motor (PMSM) was developed, and a comprehensive electromechanical coupling dynamics model of DEDS applicable to coupling dynamics analysis was obtained. Based on this model, the impacts of the transmission error and electromechanical coupling effect on the dynamics of DEDS under steady-state and acceleration conditions were simulated and analyzed. This study demonstrates the significant impact of transmission errors on the dynamic load of high-speed gear pairs and the speed synchronization characteristics of the system. The study also reveals that the electromechanical coupling effect exacerbated the fluctuation of the gear dynamic load. During the speed change process, the electromechanical coupling effect did not introduce new resonance points. However, transmission errors tend to induce low-frequency resonance of the gear dynamic load and speed synchronization error (SSE). In addition, when the system is operated near the resonant speed, a large torsional vibration dominated by the resonant excitation frequency is generated, distinguished using the current signal to assess the resonance risk. The research results are important for the integrated design and condition monitoring of DEDS and offer valuable insights for enhancing the operational efficiency and reliability of the system.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Electromechanical coupling dynamics of dual-motor electric drive system of hybrid electric vehicles


    Contributors:
    Ge, Shuaishuai (author) / Hou, Shuang (author) / Zhang, Zhigang (author) / Wang, Huan (author) / Li, Wenli (author)


    Publication date :

    2025-05-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    ELECTRIC MOTOR CHAIN DRIVE SYSTEM FOR HYBRID ELECTRIC VEHICLES AND PLUG-IN HYBRID ELECTRIC VEHICLES

    JUN SONG / ZAIQIANG MENG / XIAOJIAN LU | European Patent Office | 2020

    Free access

    Electromechanical coupling system of hybrid electric vehicle

    ZHANG XUEYI / HU WENJING / YAN SHILONG et al. | European Patent Office | 2022

    Free access

    Electromechanical coupling system and hybrid electric vehicle

    ZHAO CHENGFU / WANG NAN / FAN XUELAI | European Patent Office | 2022

    Free access

    Dual drive plate damper for hybrid electric vehicles

    BREVICK JOHN E / FRAIT STEVEN A / DEVEREAUX KEITH A | European Patent Office | 2016

    Free access

    Four-mode dual-motor coupling electric drive axle

    WANG JUNNIAN / GUAN CHANGYANG / ZHENG TIANHUI et al. | European Patent Office | 2024

    Free access