Fault Diagnosis and Fault Tolerance Degradation Control Based on Fuzzy Decision for RSAS of Redundant Braking System

被引：0

作者：

Zhu, Zheng ^{[1
]}

Wang, Xiangyu ^{[1
]}

Li, Liang ^{[1
]}

Zhou, Daolin ^{[1
]}

Xu, Yinggang ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2024年 / 24卷 / 16期

关键词：

Sensors; Wheels; Sensor systems; Fault diagnosis; Fault tolerant systems; Fault tolerance; Accuracy; Fault diagnosis and fault tolerance degradation control (FDFTDC); fuzzy decision; redundant braking system (RBS); redundant steering wheel angle sensor (RSAS); steering wheel observer; MODEL; KNOWLEDGE; SIGNAL;

D O I：

10.1109/JSEN.2024.3418819

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Redundant braking system (RBS) is an important part of intelligent vehicle safety. Accurate and stable steering wheel angle is the key signal to realize vehicle stability control (VSC). Hence, in order to improve the reliability of the angle signal in the RBS, a redundant steering wheel angle sensor (RSAS) is developed and designed, and a fault diagnosis and fault tolerance degradation control (FDFTDC) strategy based on fuzzy decision is proposed in combination with the steering system. The RSAS consists of a main gear connected to the steering wheel column, and the two pinion pairs are redundant to each other. Based on RSAS, a steering wheel observer is introduced to establish steering wheel angle fault diagnosis and fault-tolerant control strategy. Finally, it is applied to the stability of the braking system. The results show that FDFDTC can effectively diagnose and control the steering wheel Angle signal, improve the safety redundancy of the system, and effectively improve the robustness of the RBS in the vehicle stability. When one of the RSAS fails, the MSE is 0.0616, with the same deviation as normal. In the RBS system, when all RSAS fail, the MSE is 0.0867, which can still guarantee the function of the system.

引用

页码：25858 / 25868

页数：11

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