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Airborne wheel load signal using method based on speed protection

A speed and signal technology, applied in the field of airborne wheel-borne signal based on speed protection

Active Publication Date: 2021-04-30
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a method for using airborne wheel-borne signals based on speed protection to solve or alleviate at least one of the problems in the background technology

Method used

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  • Airborne wheel load signal using method based on speed protection

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application.

[0024] In view of the fact that in the prior art, the safety and reliability of only using the wheel load signal (also known as the wheel load signal) for the air condition of the aircraft is not high, this application provides a speed protection based wheel load signal. The signal usage method satisfies the requirement of high reliability of the wheel bearing signal.

[0025] Such as figure 1 As shown, the method provided by this application includes the following steps:

[0026] S1. Calculating the lift-off speed of the aircraft with different external hang configurations within the range covering all the take-off weights of the aircraft.

[0027] Specifically, according to the relevant requirements of t...

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Abstract

The invention provides an airborne wheel load signal using method based on speed protection, and belongs to the technical field of flight control. The method comprises the steps: determining the off-ground speeds of aircrafts with different external hanging configurations in the whole take-off weight range of the aircrafts; forming a speed protection range of the aircraft wheel load signal by using the aircraft off-ground speed and a hysteresis link of the aircraft off-ground speed and a preset value; and converting the speed protection range into a standard dynamic pressure range, and logically using the aircraft wheel load signal according to the standard dynamic pressure range in combination with the aircraft wheel load signal. According to the method provided by the invention, the standard dynamic pressure is added, and the airborne wheel load signal is combined to judge the air-ground state of the aircraft so that the judgment reliability can be improved, and a flight safety risk is reduced.

Description

technical field [0001] The present application belongs to the field of flight control technology, and in particular relates to a method for using an airborne wheel-borne signal based on speed protection. Background technique [0002] The flight state of the aircraft is generally divided into: air flight state, takeoff and landing flight state, and ground rollout state, and the corresponding control laws are also divided into air flight control laws, takeoff and landing flight control laws, and ground rollout control laws. Among them, the flight control law and take-off and landing control law are switched through the landing gear retraction state, and the take-off and landing control law is switched through the wheel bearing signal. As an important signal for the aircraft control system to judge the ground and air, the on-wheel signal affects the functions of system control, calibration and testing, and its safety and reliability are of great significance to the safety and r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 范彦铭王志刚王业光张勇钱鹏
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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