A parameter-free method for sensor fault detection and isolation in bilinear systems

This paper is concerned with Fault Detection and Isolation (FDI) and more specifically it focuses on a parameter-free residual generation method. The residual signals are obtained by projecting the measured signals onto the kernel of an extended input matrix, which depends on the structure of the system model. The method was not easily applicable in real-world applications due to a high computational complexity. In that paper, fault indicators are constructed differently, using kernels properties, to avoid this complexity problem. A simulated electromechanical actuator example is taken to illustrate the applicability of the method.