HYDRAULIC ACTUATOR FAULT DETECTION AND DIAGNOSIS: A ROBUST PARAMETRIC DECISION TEST

Abstract : This paper presents a robust parametric test dedicated to control surface runaway (a.k.a. hard-over) detection, jointly developed by the University of Bordeaux and Airbus Operations S.A.S. A robust Recursive Least-Square (RLS) algorithm allows for estimating the parameters of an appropriate parametric model structure of the control surface servo-loop. It has been shown that there exits one parametric direction which is sensitive to faults to be detected. The hardover fault is detected and confirmed by means of a suitable decision test in the parametric space, the so-called CR2 (two confidence regions) test. This paper reminds in more details the chosen approach while insisting on practical constraints when dealing with implementation in real-time systems like the Flight Control Computer. On-going results obtained from a Verification & Validation (V&V) campaign are presented.
Type de document :
Communication dans un congrès
Recent Advances in Aerospace Actuation Systems and Components, Mar 2016, Toulouse, France. 2016
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https://hal.archives-ouvertes.fr/hal-01280450
Contributeur : Jérome Cieslak <>
Soumis le : lundi 29 février 2016 - 15:39:10
Dernière modification le : mardi 5 février 2019 - 15:04:08

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  • HAL Id : hal-01280450, version 1

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Goupil Philippe, Ali Zolghadri, Jérome Cieslak, Rémy Dayre. HYDRAULIC ACTUATOR FAULT DETECTION AND DIAGNOSIS: A ROBUST PARAMETRIC DECISION TEST. Recent Advances in Aerospace Actuation Systems and Components, Mar 2016, Toulouse, France. 2016. 〈hal-01280450〉

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