分布式四驱电动汽车电机故障诊断及失效控制*

doi:10.19562/j.chinasae.qcgc.2020.09.020

摘要/Abstract

摘要： 本文针对分布式四驱电动汽车电机的软性及硬性故障,提出了一种基于电机失效控制增益的故障诊断和失效控制策略。设计了故障诊断模块和失效模式判断与驱动力再分配模块,与车辆直接横摆力矩控制相结合,实现了基于故障诊断的驱动力二次分配控制。通过MATLAB/Simulink与CarSim联合仿真和RCP实车试验,验证了提出的故障诊断与失效控制策略的有效性,该控制策略能充分利用分布式驱动的电机冗余特性,保证分布式四驱电动汽车在常见的多种电机失效工况下安全行驶。

关键词: 分布式四驱电动汽车, 电机故障, 故障诊断, 失效控制

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

朱绍鹏, 傅琪涛, 黄小燕, 王志威, 杨兴浩. 分布式四驱电动汽车电机故障诊断及失效控制^*[J]. 汽车工程, 2020, 42(9): 1284-1291.

Zhu Shaopeng, Fu Qitao, Huang Xiaoyan, Wang Zhiwei, Yang Xinghao. Motor Fault Diagnosis and Failure Control for Distributed Four-wheel Drive Electric Vehicles[J]. Automotive Engineering, 2020, 42(9): 1284-1291.

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分布式四驱电动汽车电机故障诊断及失效控制^*

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

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