Details of Grant 

EPSRC Reference:	EP/F004702/1
Title:	A sliding mode approach for active fault tolerant control and estimation
Principal Investigator:	Edwards, Professor C
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department:	Engineering
Organisation:	University of Leicester
Scheme:	Standard Research
Starts:	01 March 2008	Ends:	31 March 2009	Value (£):	88,099
EPSRC Research Topic Classifications:	Control Engineering
EPSRC Industrial Sector Classifications:	Aerospace, Defence and Marine
Related Grants:
Panel History:	Panel Date Panel Name Outcome 26 Feb 2007 Active Aircraft Full Proposals Announced
Summary on Grant Application Form
This proposal will consider the use of sliding mode concepts for active fault tolerant control and estimation in an 'active aircraft'. Sliding mode controllers have strong robustness properties to a certain class of uncertainty and have been shown to provide inherent fault tolerant control with respect to actuator faults. Sliding mode observers have an ability to reconstruct un-measurable signals within a dynamic system by appropriate scaling and filtering of the so-called 'equivalent output error injection'. This is a unique property of sliding mode observers which emanates from the fact that the introduction of a sliding motion forces the outputs of the observer to exactly track the plant measurements. Previous work has investigated the potential of sliding mode ideas for fault tolerant control in a civil aircraft with 'conventional' control surfaces. In an active control environment a key challenge will be to apply these ideas in a less traditional setting in which there is a proliferation of 'unconventional' actuators or sensor arrays. A problem formulation will be developed during the project so that the signals to be reconstructed represent unmeasured or unmeasurable external quantities which impact on the aircraft system - either externally (environmental conditions) or internally (associated with the airframe itself).
Key Findings
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Project URL:
Further Information:
Organisation Website:	http://www.le.ac.uk