Reconfigurable control design for over-actuated systems based on reliability indicators

Ahmed Khelassi (1) , Didier Theilliol (1) , Philippe Weber (1)

1 CRAN - Centre de Recherche en Automatique de Nancy

Control allocation is a solution to distribute the control efforts among a redundant set. A new approach to manage the actuators redundancy in the presence of faults is proposed based on reliability indicators. The aim is to preserve the health of the actuators and the availability of the system both in the nominal behavior and in the presence of actuator faults. In degraded functional, a reconfigured control allocation strategy is proposed based on the on-line re-estimation of actuators reliability. A benefit of incorporate the reliability indicators on the over-actuated control system design is to manage smartly the redundant actuators and improve the safety of the system. The proposed approach is illustrated with a flight control application.

Mots clés: Fault tolerant control; Reconfigurable control; Overactuated system; Reliability; Actuators health

Domaines: Automatique / Robotique

Ahmed Khelassi, Didier Theilliol, Philippe Weber. Reconfigurable control design for over-actuated systems based on reliability indicators. Conference on Control and Fault-Tolerant Systems, SysTol'10, Oct 2010, Nice, France. pp.CDROM. ⟨hal-00529830⟩