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Automotive Engineering ›› 2024, Vol. 46 ›› Issue (1): 61-74.doi: 10.19562/j.chinasae.qcgc.2024.01.007

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Research Review of Fault Diagnosis for Electric Drive Powertrain System of Pure Electric Vehicles

Pengbo Zhang1,2,Renxiang Chen2(),Yiming Shao1,Shizheng Sun2,Kaibo Yan2   

  1. 1.School of Traffic and Transportation,Chongqing Jiaotong University,Chongqing  400074
    2.Chongqing Jiaotong University,Chongqing Engineering Laboratory for Transportation Engineering Application Robot,Chongqing  400074
  • Received:2023-04-05 Revised:2023-07-09 Online:2024-01-25 Published:2024-01-23
  • Contact: Renxiang Chen E-mail:manlouyue@126.com

Abstract:

In order to comprehensively review the current status and clarify the future trend of fault diagnosis in the electric drive system of pure electric vehicles, this paper first introduces the basic structure, functions and development history of the electric drive system of pure electric vehicles; then summarizes in detail the types and causes of faults of crucial components of the electric drive system of pure electric vehicles, and analyzes the main research status quo of fault diagnosis methods for key components of the electric drive system of pure electric vehicles. Then the domestic and international research progress and development of the diagnosis methods of the pure electric vehicle electric drive system are reviewed in detail from the four aspects of expert knowledge-driven, model-driven, signal-driven and data-driven, with the advantages and disadvantages of different methods compared. Finally, the problems faced by the fault diagnosis of electric drive system of pure electric vehicles and the development direction are analyzed and foreseen, and it is further discussed and pointed out that the future research on the fault diagnosis of electric drive system of pure electric vehicles can be focused on variable condition coupled fault diagnosis, micro-fault and pre-fault diagnosis, real-time online fault diagnosis, intelligent operation and maintenance, unknown fault diagnosis and system self-healing technology, etc.

Key words: pure electric vehicle, electrical drive powertrain system, fault diagnosis