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This work considers the problem of sensor fault detection and isolation (FDI) and fault-tolerant control for nonlinear systems subject to input constraints. The key idea of the proposed method is to exploit model-based sensor redundancy through state observer design. To this end, an output feedback control design using high-gain observers is first presented. An FDI scheme that utilizes the enhanced...
This work considers the problem of designing an active fault isolation scheme for nonlinear systems subject to uncertainty. The key idea is to utilize the control action to drive the system to a region which allows isolation of faults not otherwise possible under nominal operation. To this end, dedicated residuals are generated for the faults under consideration. To make these residuals sufficiently...
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