Optimization of redundant configuration scheme for vehicle inertial sensors with high reliability

被引：0

作者：

Yuan Y. ^{[1
]}

Zou B. ^{[1
]}

机构：

[1] School of Automotive Engineering, Wuhan University of Technology, Wuhan

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2018年 / 39卷 / 08期

关键词：

Accuracy; Generalized likelihood test; Linear prediction; Micro-vehicle; Multiple faults detection and isolation; Orthogonal cone configuration; Redundancy configuration; Reliability; Strapdown inertial navigation technology;

D O I：

10.11990/jheu.201801055

中图分类号：

学科分类号：

摘要：

In the three-axis orthogonal configuration of a strapdown inertial navigation system, a single gyroscope fault can directly lead to system failure. To address this, a redundant configuration scheme with high reliability is proposed for vehicle inertial sensors, based on orthogonal cone redundancy configuration. First, to achieve a higher reliability, better navigation performance, and higher precision under a single fault condition, a five-gyro orthogonal cone configuration was designed. Then, a fault detection and isolation method was designed based on the combination of generalized likelihood test fault detection and linear prediction isolation method, which solved the problems of multi-fault detection and isolation. The performance simulation shows that the new optimal solution of redundant configuration for vehicle inertial sensors improves system reliability 1.35 times more than non-redundant configuration, and can accurately detect and isolate multiple faults in redundant system, which has an important application value in the project design of micro-vehicle inertial strapdown systems. © 2018, Editorial Department of Journal of HEU. All right reserved.

引用

页码：1369 / 1375

页数：6

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