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

Device and method for determining runway condition, relevant drive assistance system and relevant aircraft

A determination method and a determination device technology, applied in the field of aircraft, can solve the problem of not allowing the measurement value to be associated with the runway state

Active Publication Date: 2013-02-06
AIRBUS OPERATIONS (SAS)
View PDF7 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0032] In this example, it is therefore understood that the mere estimation of the coefficient of adhesion μ does not allow reliable and precise correlation of the measured values ​​with the state of the runway

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
  • Device and method for determining runway condition, relevant drive assistance system and relevant aircraft
  • Device and method for determining runway condition, relevant drive assistance system and relevant aircraft
  • Device and method for determining runway condition, relevant drive assistance system and relevant aircraft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0093] exist figure 1 , the aircraft 10 is shown at the end of the taxiing / braking phase on the airport runway 12 . The aircraft 10 is equipped with a device 14 subject of the invention capable of determining the state of the runway 12 .

[0094] The aircraft 10 , which determines the runway status on board, transmits this runway status to a central ground station 18 of the airport via a communication link 16 provided in particular for this purpose. As a variant, the measurements made at the aircraft 10 may be transmitted to a ground station 18 which carries out the determination of the state of the runway according to the invention. After possible internal processing, the ground station transmits 20 the runway status to an aircraft 22 in the approach phase for landing or to an aircraft preparing to take off.

[0095] The aircraft 22 then works as the aircraft 10 at the end of its landing or take-off phase to enrich the central ground station 18 with supplementary informatio...

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

The invention relates to a device and a method for determining a runway condition (12), an aircraft equipped with such a device and an aircraft drive assistance system equipped with such a device. The method comprises a step of collecting (A1) measurement data related to at least a physical quantity of an aircraft (10) during a phase when the aircraft is taxiing on a runway; a step of obtaining (A2) a set of estimated adhesion coefficient values mu of the runway by using the collected measurement data, wherein the estimated adhesion coefficient values of the runway correspond to a set of corresponding moments of movement of the aircraft taxing on the runway; a step of obtaining (A3) a slip ratio value s for at least a wheel of the aircraft at each skiing moment by using the acquired data to obtain (A4) [mu, s] pairs, and a step of determining the condition of the runway by comparing (A5.2) a profile of the [mu, s] pairs of values with a predetermined profile.

Description

technical field [0001] The present invention relates to a device and method for determining the state of a runway, and to a system and method for assisting landing and / or take-off of an aircraft, and to an aircraft equipped with such a device and system. Background technique [0002] Knowing the surface state of the runway is crucial during the landing and take-off phases, and more generally during the taxiing phase of an aircraft. In practice, predictions of aircraft braking performance depend on this knowledge. So you can: [0003] - the best estimate of the distance required to stop the aircraft for safety reasons, [0004] - not to overestimate the stopping distance required to immobilize the aircraft and thus not to unduly impair runway and aircraft use operations. [0005] However, the braking performance of an aircraft on a so-called polluted runway is very unpredictable due to the difficulty of knowing in a reliable and precise manner the effect of runway conditio...

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 Applications(China)
IPC IPC(8): B64C25/42B60T8/17
CPCB64C25/426G08G5/0086B60T2210/12B64C25/42G08G5/0021G08G5/065G08G5/0013B60T8/172G08G5/06B60T8/1703G05D1/0083B60T2210/13
Inventor L·琼斯
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