Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31834
Applied Actuator Fault Accommodation in Flight Control Systems Using Fault Reconstruction Based FDD and SMC Reconfiguration

Authors: A. Ghodbane, M. Saad, J.-F. Boland, C. Thibeault


Historically, actuators’ redundancy was used to deal with faults occurring suddenly in flight systems. This technique was generally expensive, time consuming and involves increased weight and space in the system. Therefore, nowadays, the on-line fault diagnosis of actuators and accommodation plays a major role in the design of avionic systems. These approaches, known as Fault Tolerant Flight Control systems (FTFCs) are able to adapt to such sudden faults while keeping avionics systems lighter and less expensive. In this paper, a (FTFC) system based on the Geometric Approach and a Reconfigurable Flight Control (RFC) are presented. The Geometric approach is used for cosmic ray fault reconstruction, while Sliding Mode Control (SMC) based on Lyapunov stability theory is designed for the reconfiguration of the controller in order to compensate the fault effect. Matlab®/Simulink® simulations are performed to illustrate the effectiveness and robustness of the proposed flight control system against actuators’ faulty signal caused by cosmic rays. The results demonstrate the successful real-time implementation of the proposed FTFC system on a non-linear 6 DOF aircraft model.

Keywords: Actuators’ faults, Fault detection and diagnosis, Fault tolerant flight control, Sliding mode control, Geometric approach for fault reconstruction, Lyapunov stability.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2417


[1] R. Isermann, Fault-Diagnosis Systems, An Introduction from Fault Detection to Fault Tolerance, ISBN-10 3-540-24112-4, Springer-Verlag, 2006.
[2] C. Edwards, T. Lombaerts and H. Smaili, Fault Tolerant Flight Control, ISSN 0170-8643, Library of Congress Control Number: 2010924939, Springer-Verlag Berlin Heidelberg, 2010.
[3] N. Meskin and K. Khorasani, Fault Detection and Isolation - Multi- Vehicle Unmanned Systems, ISBN 978-1-4419-8392-3, Springer New York Dordrecht Heidelberg London, 2011.
[4] H.Alwi, C. Edwards and C. P. Tan, Fault Detection and Fault-Tolerant Control Using Sliding Modes, ISBN 978-0-85729-649-8, Springer London Dordrecht Heidelberg New York, 2011.
[5] C. Hajiyev and F. Caliskan, Fault Diagnosis and Reconfiguration in Flight Control Systems, Kluwer Academic Publishers, ISBN 1-4020- 7605-3, 2003.
[6] A. Isidori, Nonlinear Control System, 3rd edition, Library of Congress Cataloging-in-Publication Data, ISBN 3-540-19916-0, Springer-Verlag London Limited 1995.
[7] C. De Persis and A.Isidori, A Geometric Approach to Nonlinear Fault Detection and Isolation, IEEE Transactions on Automatic Control, Vol. 46, No. 6, 2001.
[8] S. Chaib, M. Saad, S.C. Abou and D. Boutat, Detection of actuator faults in flight control systems, Can. Aeronaut. Space J., Vol. 55, No. 3, pp. 133-143, 2009.
[9] S. Chaib, D. Boutat, A. Benali, F. Kratz, Failure detection and reconstruction in switched nonlinear systems, Elsevier, Nonlinear Analysis: Hybrid Systems 3, pp. 225-238, 2009.
[10] J.-J. E. Slotine and Li. Weiping, Applied nonlinear control, Englewood Cliffs, N.J. : Prentice-Hall, c1991.
[11] L. Fridman, J. Davila and A. Levant, High-order sliding-mode observation and fault detection, Source: Proceedings of the IEEE Conference on Decision and Control, p 4317-4322, 2007.
[12] B. Bandyopadhyay, S. Janardhanan, and S. K. Spurgeon, Advances in Sliding Mode Control Concept, Theory and Implementation, ISBN 978- 3-642-36985-8, 2013.
[13] D. Shin, G. Moon and Y. Kim, Design of reconfigurable flight control system using adaptive sliding mode control: actuator fault, J. Aerospace Engineering, Vol. 219, Part G, 321-328, 2005.
[14] T.H. Mirza, C. Edwards and H. Alwi, Integral Sliding Mode Fault Tolerant Control Incorporating On-line Control Allocation, 2010 11th International Workshop on Variable Structure Systems Mexico City, Mexico, June 26 - 28, 2010.
[15] C. Fallaha, M. Saad, H. Kanaan and K. Al-Hadded, Sliding mode control with exponential reaching law, IEEE Trans. on Indus. Electronics, 2009.
[16] A. Taber and E. Normand, Investigation and Characterization of SEU Effects and Hardening Strategies in Avionics, IBM Report 92-L75-020- 2, August, 1992.
[17] C. Hobeika et al., Flight Control Fault Models Based on SEU Emulation, ISSN 0148-7191, 10.4271/2013-01-2246, ©2013 SAE Aérotech International, 2013.
[18] G. Tao, S. Chen, X. Tang and S.M. Joshi, Adaptive control of systems with actuator failures, British Library Cataloguing in Publication Data, ISBN 1852337885, 2004.