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A combined diagnosis system design using model-based and data-driven methods

机译:使用基于模型和数据驱动方法的组合诊断系统设计

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摘要

A hybrid diagnosis system design is proposed that combines model-based and data-driven diagnosis methods for fault isolation. A set of residuals are used to detect if there is a fault in the system and a consistency-based fault isolation algorithm is used to compute all diagnosis candidates that can explain the triggered residuals. To improve fault isolation, diagnosis candidates are ranked by evaluating the residuals using a set of one-class support vector machines trained using data from different faults. The proposed diagnosis system design is evaluated using simulations of a model describing the air-flow in an internal combustion engine.
机译:提出了一种混合诊断系统设计,该设计结合了基于模型和数据驱动的诊断方法以进行故障隔离。一组残差用于检测系统中是否存在故障,并且基于一致性的故障隔离算法用于计算所有可以解释触发残差的诊断候选对象。为了改善故障隔离,通过使用一组使用来自不同故障的数据训练的一类支持向量机来评估残差,从而对诊断候选进行排序。所提出的诊断系统设计是使用描述内燃机中气流的模型模拟进行评估的。

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