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Method of detecting and isolating fault in redundant sensors, and method of accommodating fault in redundant sensors using the same
Method of detecting and isolating fault in redundant sensors, and method of accommodating fault in redundant sensors using the same
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机译:检测和隔离冗余传感器中的故障的方法以及使用该方法解决冗余传感器中的故障的方法
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摘要
Provided are a method of detecting and isolating fault in sensors and a method of accommodating fault in sensors using the same. In the method of detecting and isolating fault in sensors, a one reduced-order parity vector is obtained by excluding the output of one sensor selected from n sensors, a two reduced-order parity vector is obtained by excluding output of two sensors selected from the n sensors, and when there are a plurality of parity vectors obtained at plural points of time, one reduced-order parity vectors are averaged to obtain an averaged one reduced-order parity vector and likewise, two reduced-order parity vectors are averaged to obtain an averaged two reduced-order parity vector. Therefore, a decrease in fault detection and isolation (FDI) performance can be hindered, and even when double faults occur, sensors to be excluded can be selected. Thus, a system including sensors has high reliability and high accuracy.
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