Method and device for automatically estimating an airspeed of an aircraft
US8849479B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2012 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Feb 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P5/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for estimating aircraft airspeed by a processor and an airspeed estimation device, which includes the calculation of a value for aircraft aerodynamic speed (Vcaero), by an aerodynamic calculator, based on aircraft aerodynamic parameters and the calculation of a value for current aircraft speed (Vc) by an anemobarometric unit. An estimated airspeed (Vcest) is determined by adding, by an adding unit, a corrective value, determined by an airspeed integrating unit, to the value for Vcaero. The corrective value is determined, by the airspeed integrating unit, according to a comparison between: a residual speed value (VR), determined by a residual speed determination unit, with the value VR determined by correcting the value for Vcaero to a value that converges toward the value for Vc, and a predetermined threshold value (λ).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.