Distinguishability of switching system for diagnosis

Elom Ayih Domlan (1) , José Ragot (1) , Didier Maquin (1)

1 CRAN - Centre de Recherche en Automatique de Nancy

This article tackles the problem of the diagnosis of switching systems. These systems are described by several regimes, each of them being active under certain particular operating conditions which can be controlled or not. If the operating conditions are unknown, the diagnosis of such systems is complex. It is even more complicated in the situation where the various models of the operating regimes of the switching system tend to give very close outputs when they are excited with the same inputs. Moreover the disturbing effect of the measurement noise can make the diagnosis unrealizable. It is then necessary to specify the conditions under which one can find the active operating regime of a switching system from the only knowledge of the inputs applied to the system and its outputs.

Keywords: Bounded noise; diagnosis; “distinguishability”; switching system

Domains: Automatic

Elom Ayih Domlan, José Ragot, Didier Maquin. Distinguishability of switching system for diagnosis. Workshop on Advanced Control and Diagnosis, Nov 2004, Karlsruhe, Germany. pp.CDROM. ⟨hal-00151290⟩