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Parameter optimization and multi-mode operation of a novel dual-motor coupling torque vectoring drive system for electric vehicles

Author

Listed:
  • Guan, Changyang
  • Wang, Junnian
  • Zheng, Tianhui
  • Wang, Qikai
  • Sun, Wen
  • Wang, Haisheng

Abstract

Electric vehicles (EVs) have developed rapidly in the past decade, with a heightened focus on the development of high-performance EVs in recent years. However, the contradiction between drive performance and efficiency of electric drive systems has not been adequately resolved. To provide a potential solution to this issue, a novel dual-motor coupling torque vectoring drive system (DCTVD) is proposed in this paper through exploring potentially optimal power coupling configurations of dual-motor drive units. Correspondingly, based on the multi-mode operation capability of the DCTVD, a parameter optimization method, a drive mode switching control strategy, and a torque vectoring control strategy are proposed and discussed in detail. After applying these methods and strategies, the energy-saving potential of the DCTVD is verified by simulation. Results under typical driving cycle tests indicate that the DCTVD, with the parameter optimization and drive mode switching control strategy, shows a significant energy-saving improvements compared to a traditional single-motor single-speed drive system. Additionally, results under turning conditions indicate that the DCTVD has an observable energy-saving effect under certain conditions with the torque vectoring control strategy.

Suggested Citation

  • Guan, Changyang & Wang, Junnian & Zheng, Tianhui & Wang, Qikai & Sun, Wen & Wang, Haisheng, 2025. "Parameter optimization and multi-mode operation of a novel dual-motor coupling torque vectoring drive system for electric vehicles," Applied Energy, Elsevier, vol. 389(C).
    • Handle: RePEc:eee:appene:v:389:y:2025:i:c:s030626192500474x
    DOI: 10.1016/j.apenergy.2025.125744
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