• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2019, Vol. 55 ›› Issue (18): 112-124.doi: 10.3901/JME.2019.18.112

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Energy Management of Multi-mode Coupling Drive System Based on Driver Intention Recognition

ZHANG Lipeng1, JIA Qikang1, LIU Wei1, ZHAO Yuqin2   

  1. 1. Hebei Key Laboratory of Special Delivery Equipment, Yanshan University, Qinhuangdao 066004;
    2. Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao 066004
  • Received:2018-11-10 Revised:2019-06-19 Online:2019-09-20 Published:2020-01-07

Abstract: The matched multi-mode coupling drive system can make the plug-in hybrid vehicle have high-efficiency centralized and distributed coupling drive functions, but the research on the vehicle economics based on the system is still insufficient. In order to reduce the vehicle energy consumption, the system energy optimization management based on driving intention identification is carried out. A fuzzy inference controller is used to identify the driver intention under different driving conditions. The working mode is classified according to the system dynamic coupling modes, the engine operating characteristic and the motors efficiency. The fuel economy objective function is established. The equivalent consumption minimization strategy (ECMS) as instantaneous optimization method is used to distributed the engine, the main motor and the auxiliary motor's torque. Finally, the energy management strategy based on the driver intention recognition is proposed. The fuzzy inference model and the vehicle model are built, and the new europe driving cycle (NEDC)and actual speed test results are taken as the simulated cycle to carry out the simulation analysis of the vehicle economy. Research results indicate that the fuzzy inference model canidentify the driver intentions effectively, the drive modes switchand the drive torque distribution can be easily implemented according to the control strategy, which significantly improves the vehicle fuel economy. This energy optimization study for the multi-mode coupling drive system for the first time laid the theoretical foundation for efficient use of the system.

Key words: plug-in hybrid electric vehicle, multi-mode coupling drive system, fuzzy inference, driver intention, energy management

CLC Number: