The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2011
Filed:
Sep. 05, 2007
Jean-claude Le Bastard, Toulouse, FR;
Jean-Claude Le Bastard, Toulouse, FR;
Thales, , FR;
Abstract
An actuator displacement servo-control for aircraft flight controls is assisted by a hydraulic circuit, configured to deliver a hydraulic failure indication. The servo-control is generated from an actuator position indication and a position set-point indication computed by a computation unit. An alarm phase is opened on detection of a servo-control operating error and is kept open as long as the error is present. During the alarm phase it is determined whether the actuator is in blocked or divergent states. If blocked, it is determined whether the duration of the alarm phase exceeds a value T; If divergent, it is determined whether the duration of the alarm phase exceeds a value T. When blocked and the duration of the alarm phase does not exceed T, it is determined whether the hydraulic circuit indicates a hydraulic failure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile