Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and apparatus for estimating airspeed of an aircraft

An aircraft and airspeed technology, which is applied in the field of estimating the airspeed of an aircraft, and can solve the problems such as the deterioration of the estimation accuracy of the airspeed and the inability to use it.

Active Publication Date: 2020-03-10
AIRBUS OPERATIONS (SAS)
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, in the cruising flight envelope of an aircraft such as an airplane, the accuracy of the estimation of the airspeed deteriorates so much that it cannot even be used

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for estimating airspeed of an aircraft
  • Method and apparatus for estimating airspeed of an aircraft
  • Method and apparatus for estimating airspeed of an aircraft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] figure 1 An aircraft AC is schematically illustrated to which the device 1 for estimating the airspeed of an aircraft AC, for example a transport aircraft, can be applied.

[0063] According to the present invention, such as figure 2 As shown in , the estimation device 1 (hereinafter denoted as device 1) includes:

[0064] - a first estimating unit 10 configured to estimate the airspeed of the aircraft according to a first estimating method using the lift equation, the airspeed estimated by the first estimating unit 10 being called angle of attack airspeed VAI;

[0065] - a second estimation unit 20A, 20B configured to estimate the airspeed of the aircraft according to a second estimation method using at least two pressure values ​​obtained from at least two static pressure sensors arranged on the aircraft such that:

[0066] - a first of said at least two sensors is positioned such that the pressure measured by the first sensor varies according to the Mach number of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method and apparatus for estimating the airspeed of an aircraft. The device (1) comprises a first estimating unit (10) configured to estimate the airspeed of the aircraft according to a first estimating method, a second estimating unit (20A, 20B) configured to estimate the airspeed of the aircraft according to a second estimating method ), a weighting unit (30) configured to weight the two airspeeds estimated by the first and second estimation methods, and a calculation unit configured to add the weighted airspeeds to obtain an estimated airspeed (VAE) of the aircraft (40).

Description

technical field [0001] The invention relates to a method and a device for estimating the airspeed of an aircraft. [0002] The term "airspeed" designates equally the Mach number of the aircraft (defined as the ratio between the speed of the aircraft and the speed of sound under the flight conditions of the aircraft) and the so-called conventional speed of the aircraft ("calibrated airspeed"). Background technique [0003] Generally, airspeed is estimated on board an aircraft from two pressure measurements: [0004] - first, the total pressure obtained using a single pitot; and [0005] -Secondly, the static pressure measured using a static pressure probe flush with the aircraft's fuselage skin. [0006] Pitot and static pressure probes are exposed to the external environment and can be disturbed by substances or objects upstream of the pipe that can partially or fully block the corresponding sensor, resulting in erroneous pressure measurements. [0007] Therefore, it woul...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/26
CPCG01P5/14G01P5/16G01P21/025G01P5/175
Inventor M·德尔波特
Owner AIRBUS OPERATIONS (SAS)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com