Fault Diagnosis for SBW Systems of Unmanned Vehicles

Abstract

Abstract: In order to ensure the safety and reliability of SBW systems for unmanned vehicles, the structures, working principles and malfunctions of SBW were analyzed. Using discrete dynamics model and 2-DOF vehicle model, with yaw rate signals, lateral acceleration signals and the current signals of steering motor, a real-time fault diagnose algorithm was designed based on Kalman filter method for steering tube column corner sensor, and through real-time estimation of motor parameters on abrupt faults to diagnose real-time faults of the motor. Real vehicle test results show the fault diagnose algorithm proposed herein may timely and accurately diagnose the failures of SBW systems.

Key words: unmanned vehicle, steer-by-wire(SBW) system, Kalman filter, fault diagnosis

摘要： 针对无人车线控转向系统的安全性及可靠性问题，分析了它的结构组成、工作原理以及故障类型，并且利用线控转向系统离散动力学模型和车辆二自由度模型，借助横摆角速度、侧向加速度和转向执行电机电流信号，设计了基于卡尔曼滤波方法的对转向管柱转角传感器进行实时故障诊断的算法，针对电机的突变故障，通过对电机参数的实时估计来进行故障诊断。实车试验验证表明，所设计的故障诊断算法能够准确、及时诊断出无人车线控转向系统所出现的故障。

关键词: 无人车, 线控转向系统, 卡尔曼滤波器, 故障诊断

CLC Number:

U472.42

XIONG Lu1,2;FU Zhiqiang2;LI Zengliang2;ZHANG Renxie1. Fault Diagnosis for SBW Systems of Unmanned Vehicles[J]. China Mechanical Engineering.

熊璐1,2;付志强2;李增良2;章仁燮1. 无人车的线控转向系统故障诊断[J]. 中国机械工程.

References

[1]田承伟，宗长富,王祥,等.基于Riccati方程的汽车线控转向传感器故障重构研究[J]. 中国机械工程, 2009，20(21):2637-2641.
TIAN Chengwei, ZONG Changfu, WANG Xiang, et al. Research on the Sensor Fault Rebuilding Based on Riccati-type Equation for Steer-by-wire System[J]. China Mechanical Engineering, 2009，20(21): 2637-2641.
[2]HEITZERH D. Development of a Fault-tolerant Steer-by-wire Steering System[J]. Autotechnology, 2003, 3(4):56-60.
[3]潘海鹏.电动助力转向故障诊断技术研究[D]. 长春:吉林大学, 2005.
PAN Haipeng. Study of the Diagnosis Technology of Electric Power Steering [D].Changchun: Jilin University, 2005.
[4]PISU P, SERRANI A, YOU S, et al. Adaptive Threshold Based Diagnostics for Steer-by-wire Systems[J]. Journal of Dynamic Systems, Measurement, and Control, 2006, 128(2): 428-435.
[5]HAYAMA R, HIGASHI M, KAWAHARA S, et al. Fault-tolerant Automobile Steering Based on Diversity of Steer-by-wire, Braking and Acceleration[J]. Reliability Engineering & System Safety, 2010, 95(1): 10-17.
[6]TIAN C, ZONG C, HE L, et al. Fault Tolerant Control Method for Steer-by-wire System[C]// International Conference on Mechatronics and Automation. Changchun, 2009:291-295.
[7]姜国彬.汽车线控转向系统故障诊断方法研究[D].长春：吉林大学,2009.
JIANG Guobin. Research of Diagnosis Method for Vehicle Steer-by-wire System[D]. Changchun: Jilin University, 2009.
[8]ZHENG B，ANWAR S．Yaw Stability Control of a Steer-by-wire Equipped Vehicle via Active Front Wheel Steering[J]．Mechatronics，2009，19(6) : 799-804．
[9]田承伟,宗长富,姜国彬,等.基于双自适应Kalman滤波的线控转向汽车传感器故障诊断[J].中国公路学报,2009,22(4):115-121.
TIAN Chengwei, ZONG Changfu, JIANG Guobin, et al. Sensor Fault Diagnosis for Steer-by-wire Car Based on Dual Adaptive Kalman Filter[J]. China Journal of Highway and Transport, 2009, 22(4):115-121.

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