Method and device for detecting oscillatory failures in a position servocontrol subsystem of an aircraft control surface
US8160770B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 15, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | May 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/0254
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.