Research in Engineering and Aviation

Robust Fault Tolerant Control Architecture – Actuator Fault Detection and Reconfiguration


Author(s): S. Jayaram, R. Johnson

Journal: Journal of Control and Intelligent Systems, Volume 38, Issue 1, pp. 1 – 8, 2010. DOI: 10.2316/Journal.201.2010.1.201-2033


In this paper, developing a fault-tolerant robust control architecture for a class of non-linear, non-parameterizable, uncertain systems is investigated. Robust measures are developed to identify faculty actuators that would degrade the performance envelopes. These robust measures are in turn used to design a robust fault-tolerant control law which is capable of switching from nominal control law to robust control laws under faulty conditions. It will be shown that the robust control law is capable of switching to redundant backups, thus maintaining the stability and overall performance measures of the system when there is an actuator failure of any kind.