干式DCT同步器作动电机位置传感器故障诊断*

doi:10.19562/j.chinasae.qcgc.2020.11.019

摘要/Abstract

摘要： 考虑到干式双离合器自动变速器(DCT)同步器作动电机霍尔位置传感器易受环境影响和维修不便,本文中在选挡过程对其进行故障诊断和容错控制,以保证DCT车辆平稳换挡和安全行车。首先搭建并验证了干式DCT同步器作动电机仿真模型,设计模糊滑模观测器对其线反电动势进行实时估计,并利用无刷直流电机线反电动势与转角信号间的关系,实现了对同步器作动电机位置的间接估计。接着,基于估计值与传感器实际输出的偏差对霍尔传感器进行了故障诊断,通过解析冗余实现了对同步器作动电机霍尔传感器故障的主动容错控制。最后,对所提出的霍尔位置传感器故障诊断方法分别进行了仿真和试验验证,结果表明,所重构的霍尔位置信号延迟小于5.5%,该方法可用于同步器作动电机霍尔传感器的故障诊断和相应的容错控制。

关键词: 干式DCT, 同步器无刷直流作动电机, 模糊滑模观测器, 故障诊断, 容错控制

Abstract: In view of that the Hall position sensor of the synchronizer actuator motor in a dry dual clutch transmission (DCT)is susceptible to environment and is inconvenient in maintenance, the fault diagnosis and fault-tolerant control of the Hall position sensorare performed in the gear-selecting process of dry DCT in this paper for ensuring the smooth shifting and safe driving of DCT vehicle. Firstly, the simulation model for the actuator motor of dry DCT synchronizer is built and verified,fuzzy sliding mode observer is designed to estimate its line back electromotive force (EMF) real-time, and the relationship between the line back EMF in brushless DC motor and rotational angle signal is utilized to achieve the indirect estimation of the rotor position of synchronizer actuatormotor. Then, based on the difference between the estimated value and the actual sensor output, the Hall position sensor fault is diagnosed, and the active fault-tolerant control of the Hall sensor fault of synchronizer actuatormotor is realized by means of analytical redundancy. Finally, simulation and verification test are conducted on the fault diagnosis method proposed for Hall position sensor, with a result showing that the delay of the reconstructed Hall position signal is less than 5.5%, and the method is applicable to the fault diagnosis and corresponding fault-tolerance control of the Hall sensor in synchronizer actuator motor

Key words: dry DCT, synchronizer brushless DC actuator motor, fuzzy sliding mode observer, fault diagnosis, fault-tolerant control

赵治国, 付十豪, 姜斯文, 陈家毅. 干式DCT同步器作动电机位置传感器故障诊断^*[J]. 汽车工程, 2020, 42(11): 1585-1594.

Zhao Zhiguo, Fu Shihao, Jiang Siwen, Chen Jiayi. Fault Diagnosis of Position Sensor for Synchronizer Actuator Motor in Dry Dual Clutch Transmission[J]. Automotive Engineering, 2020, 42(11): 1585-1594.

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干式DCT同步器作动电机位置传感器故障诊断^*

Fault Diagnosis of Position Sensor for Synchronizer Actuator Motor in Dry Dual Clutch Transmission

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