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US-2015375853-A1 · Dec 31, 2015 · US
Procedure and device for the determination of airspeeds of a rotorcraft in stationary flight and/or at low speeds
US8942867B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942867-B2 |
| Application number | US-201313910532-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 5, 2013 |
| Priority date | Jun 5, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A procedure and a device for the determination of current airspeeds [ 13 ] of a rotorcraft [ 2 ] in a stationary flight regime and/or at low speeds. A calculation system [ 1 ] incorporates two pairs of polynomial calculation laws [ 9] [10 ] that are executable successively by pairs. A pair of first polynomial laws [ 9 ] calculates estimated airspeeds [ 11 ], consisting respectively of longitudinal and lateral airspeeds, and is constructed through multilinear regression based on parameters relating to simulated flight points [ 17 ] defined by means of a flight simulator [ 18 ]. A pair of second polynomial laws [ 10 ] calculates the current airspeeds based on the estimated airspeeds [ 11 ], and is constructed through multilinear regression based on parameters relating to test-flight points defined by means of test flights [ 25].
First claim
Opening claim text (preview).
What is claimed is: 1. A procedure for calculating and displaying current airspeeds of a specific rotorcraft in low-speed evolutions, with the current airspeeds consisting respectively of a longitudinal current airspeed LAS Vx and a lateral current airspeed LAS Vy , the procedure including: an operation for the development of a calculation rule for the current airspeeds, which development operation includes a test-flight operation on board a rotorcraft and an operation for the in…
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- What does patent US8942867B2 cover?
- A procedure and a device for the determination of current airspeeds [ 13 ] of a rotorcraft [ 2 ] in a stationary flight regime and/or at low speeds. A calculation system [ 1 ] incorporates two pairs of polynomial calculation laws [ 9] [10 ] that are executable successively by pairs. A pair of first polynomial laws [ 9 ] calculates estimated airspeeds [ 11 ], consisting respectively of longitudi…
- Who is the assignee on this patent?
- Airbus Helicopters
- What technology area does this patent fall under?
- Primary CPC classification B64D43/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).