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Recently, a bond-graph-based fault detection and isolation (FDI) framework has been developed with a new concept of global analytical redundancy relations (GARRs) (Low, Wang, Arogeti, and Luo, 2009, 2010; Low, Wang, Arogeti, and Zhang, 2010). This new concept allows the fault diagnosis for hybrid systems which consist of both continuous dynamics and discrete modes. A failure of a safety critical system...
In this work we present a new health monitoring method for hybrid systems. The method utilizes the concept of unified constraint relations, named the global analytical redundancy relations (GARRs). Using GARRs for health monitoring of hybrid system requires the system's current mode and this information is provided by a mode tracker. To make the mode tracking more efficient, a unique mode-change isolation...
A hybrid system combines continuous and discrete dynamics and runs with a set of modes. In we proposed an efficient health monitoring method for hybrid systems. This method utilizes unified constraint relations, named the global analytical redundancy relations (GARRs). Using GARRs for hybrid system health monitoring requires knowledge of the system's mode which is provided by a mode tracker. GARRs...
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