System for control of an aerodynamic surface of an aircraft
US5374014A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0061
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
System for control of an aerodynamic surface (1) of an aircraft, comprising an intentional actuation member (5) and a hydraulic jack (2) intended to deflect said aerodynamic surface (1). According to the invention, the system comprises means (14) for detecting the difference in pressures prevailing in said jack (2), on either side of the piston (2C) of the latter, and calculation means (11) comprising: PA1 a computer delivering values of a coefficient which is a decreasing function of said difference in pressures; and PA1 a multiplier receiving an electrical signal (dp) representing a demanded deflection and said coefficient and addressing a first deflection command (C2) formed by the product of said signal and said coefficient to said servovalve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.