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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Method and device for detecting oscillatory failures in a position servocontrol subsystem of an aircraft control surface

Invented by: Philippe Goupil
Beaupuy, FR

Ali Zolghadri
Leognan, FR

Loic Lavigne
Beautiran, FR

Originally Assigned to: Airbus Operations SAS
Toulouse, FR Centre Nationale de la Recherche Scientifique
[Now assigned to . . .]

Issued:2012-04-17
Filed:2008-12-15
Application No:12334888
Examined by:Keith; Jack W

Disclosed is a method of detecting at least one oscillatory fault in at least one positional slaving chain for at least one airfoil of an aircraft. The method involves estimating a reference position of the airfoil in the absence of a fault, and calculating a residual value based on the difference between the estimated reference position and the actual position measured by at least one sensor. The calculated residual value is compared with at least one predetermined threshold value to determine the number of successive and alternating overshoots of the predetermined threshold value by the residual value, and oscillatory fault is determined based on the determined number.

[pdf] U.S. Pat. No. 8,160,770

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This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.

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