Research ArticleSimultaneous fault detection and control design for switched systems with two quantized signals

•The problem of simultaneous fault detection and control design for switched systems with two quantized signals.•Presentation of conditions for the existence of fault detector/controller.•Two illustrative examples for the effectiveness of proposed methods.

The problem of simultaneous fault detection and control design for switched systems with two quantized signals is presented in this paper. Dynamic quantizers are employed, respectively, before the output is passed to fault detector, and before the control input is transmitted to the switched system. Taking the quantized errors into account, the robust performance for this kind of system is given. Furthermore, sufficient conditions for the existence of fault detector/controller are presented in the framework of linear matrix inequalities, and fault detector/controller gains and the supremum of quantizer range are derived by a convex optimized method. Finally, two illustrative examples demonstrate the effectiveness of the proposed method.