The state observation and unknown input identification problems are studied for a class of nonlinear autonomous switched systems. A bank of observers are designed using the high-order sliding mode techniques. The robustness of the high-order sliding mode observers is exploited to provide exact reconstruction of the continuous state and the discrete state even in the presence of unknown inputs. The value of the equivalent injection is used for identification of unknown inputs. Simulation results support the proposed method.
Bibliographical noteFunding Information:
The authors gratefully acknowledge the financial support from PAPIIT 117211, CONACyT Grants 132125 , 151855 and CVU-270504 , SIP-IPN Grant 20120218 and CeDA-IPN .