Method and device for detecting oscillatory failures in a position servocontrol subsystem of an aircraft control surface
US7725224B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Dec 1, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/0254
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and device for detecting oscillatory failures in a position servocontrol subsystem of an aircraft control surface. The detection device includes a estimation unit for estimating, using a control surface control instruction, a theoretical position corresponding to a reference position of the control surface, a computing unit for computing the difference between this theoretical position and an actual position measured by a sensor so as to form a residual value, and a comparison unit for comparing this residual value to a threshold value and making a count of the overshoots of this threshold value in order to detect an oscillatory failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.