Centre National De La Recherche Scientifique

Airbus Operations (s.a.s.)

Universitë De Bordeaux

Institut Polytechnique De Bordeaux

David Henry

Philippe Goupil

Rémy Dayre

Ali Zolghadri

Anca Gheorghe

Jérôme Cieslak

Hervé Le Berre

A system for detecting jamming and/or uncontrolled movement of an aircraft control surface includes first means for estimating the value of at least one parameter of an equation simulating the feedback loop dynamic of the control surface, according to a recursive autoregressive method with exogenous variable of RARX type in a recursive least squares way, and second means for detecting jamming and/or uncontrolled movement of the control surface, according to the estimated parameter value by the application of a decision test in the parametric space.

Method and system for detecting jamming and/or uncontrolled movement of an aircraft control surface

The detection device includes, but is not limited to a device that is configured to determine a control error corresponding to the difference between a first control instruction and a control surface position, a second device that is configured to calculate the difference between this control error and a second control instruction in such a way as to form a comparison signal, and a third device that is configured to detect a jamming of the control surface if this comparison signal is greater than a threshold value.

Method and device for detecting the jamming of an aircraft control surface

Growing community of inventors

Saint Aubin De Medoc, France

David Henry