Skip to Main content Skip to Navigation
Journal articles

A Two Stages Approach for Managing Actuators Redundancy Application to Fault Tolerant Flight Control

Abstract : In safety-critical systems such as transportation aircraft, redundancy of actuators is introduced to improve fault tolerance. How to make the best use of remaining actuators to allow the system to continue achieving a desired operation in the presence of some actuators failures is the main subject of this paper. Considering that many dynamical systems, including flight dynamics of a transportation aircraft, can be expressed as an input affine nonlinear system, a new state representation is adopted here where the output dynamics are related with virtual inputs associated with the intended operation. This representation, as well as the distribution matrix associated with the effectiveness of the remaining operational actuators, allows us to define different levels of fault tolerant governability with respect to actuators’ failures. Then, a two-stage control approach is developed, leading first to the inversion of the output dynamics to get nominal values for the virtual inputs and then to the solution of a linear quadratic (LQ) problem to compute the solicitation of each operational actuator. The proposed approach is applied to the control of a transportation aircraft which performs a stabilized roll maneuver while a partial failure appears. Two fault scenarios are considered and the resulting performance of the proposed approach is displayed and discussed.
Document type :
Journal articles
Complete list of metadata

Cited literature [26 references]  Display  Hide  Download
Contributor : Céline Smith Connect in order to contact the contributor
Submitted on : Tuesday, August 25, 2015 - 1:36:06 PM
Last modification on : Tuesday, October 19, 2021 - 11:02:48 AM
Long-term archiving on: : Thursday, November 26, 2015 - 1:59:39 PM


Publication funded by an institution




Lunlong Zhong, Felix Mora-Camino. A Two Stages Approach for Managing Actuators Redundancy Application to Fault Tolerant Flight Control. Chinese Journal of Aeronautics, Elsevier, 2015, 28 (2), pp.469-477. ⟨10.1016/j.cja.2015.02.004⟩. ⟨hal-01010412⟩



Record views


Files downloads