Robust fault detection and isolation of steer by wire system under various class of fault and system uncertainties

A. Kheirandish, A. R. Husain, M. S. Kazemi, E. Gatavi, M. N. Ahmad
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引用次数: 2

Abstract

Recent advances toward steer-by-wire technology have promised significant improvements in vehicle, safety, stability, dynamics and maneuverability. The conventional mechanical linkages between the steering wheel and the front wheel are removed in this system. While the complete separation of the steering wheel from the road wheels provides exciting opportunities for vehicle dynamics control, it also presents practical problems for steering control about fault tolerant function such as the detection of sensor fault and multiplicative fault simultaneously. So Fault detection and isolation (FDI) plays important rule in this system. In this paper, Sliding Mode Observer (SMO) is proposed to use for model-based fault detection and isolation method which include processing of multiplicative and sensor fault. At last, simulation shows the effectiveness of the proposed method.
线控转向系统在各种故障和系统不确定性下的鲁棒故障检测与隔离
近年来,线控转向技术的进步已经在车辆、安全性、稳定性、动力学和可操作性方面取得了重大进展。在这个系统中,方向盘和前轮之间的传统机械连接被去掉了。方向盘与道路车轮的完全分离为车辆动力学控制提供了令人兴奋的机会,同时也给转向控制带来了容错功能的实际问题,如传感器故障和乘性故障的同时检测。因此,故障检测与隔离在该系统中起着重要的作用。本文提出将滑模观测器(SMO)用于基于模型的故障检测和隔离方法,包括乘式故障和传感器故障的处理。最后通过仿真验证了该方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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