Administrator by China Associction for Science and Technology
Sponsored by China Society of Automotive Engineers
Published by AUTO FAN Magazine Co. Ltd.

Automotive Engineering ›› 2020, Vol. 42 ›› Issue (9): 1284-1291.doi: 10.19562/j.chinasae.qcgc.2020.09.020

Previous Articles    

Motor Fault Diagnosis and Failure Control for Distributed Four-wheel Drive Electric Vehicles

Zhu Shaopeng, Fu Qitao, Huang Xiaoyan, Wang Zhiwei, Yang Xinghao   

  1. Power Machinery and Vehicular Engineering Institute,College of Energy Engineering, Zhejiang University, Hangzhou 310027
  • Online:2020-09-25 Published:2020-10-19

Abstract: In this paper, a fault diagnosis and failure control strategy based on motor failure control gain is proposed for the soft and hard faults of motor in distributed four-wheel drive electric vehicles. A fault diagnosis module and a failure mode judgment and driving force redistribution module are designed, which are combined with vehicle direct yaw moment control to achieve the secondary distribution control of driving force based on fault diagnosis. By MATLAB/Simulink and CarSim joint simulation and RCP real vehicle test, the effectiveness of the fault diagnosis and failure control strategy proposed is verified. The proposed control strategy can make sufficient use of the motor redundancy characteristics of distributed four-wheel drive electric vehicle to ensure the safe driving of vehicle under the various common failure conditions of motor

Key words: distributed four-wheel drive electric vehicle, motor fault, fault diagnosis, failure control