Airplane anti-skid brake control system and method

A technology of anti-skid braking and control system, which is applied to the aircraft braking arrangement, control valve and air release valve, brake components, etc. The effect of the control method is simple and easy to implement

Inactive Publication Date: 2012-07-11
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency in the prior art that the electronic anti-skid control box cannot correctly perform anti-skid brake control due to false and error signals, which may even lead to serious consequences, the present invention proposes an aircraft anti-skid brake control system and control method

Method used

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  • Airplane anti-skid brake control system and method
  • Airplane anti-skid brake control system and method
  • Airplane anti-skid brake control system and method

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Embodiment 1

[0020] This embodiment is an aircraft anti-skid braking control system. Includes wheel speed sensor, electronic skid control box and electrohydraulic servo valve. Wherein, there are 2 wheel speed sensors, which are respectively used for the left wheel and the right wheel of the aircraft, and the present embodiment is described with the left wheel.

[0021]The wheel speed sensor is fixedly installed on the aircraft wheel shaft or the brake housing. In this embodiment, the wheel speed sensor is installed on the aircraft wheel shaft, and the wheel speed sensor is driven by a transmission pin located on the wheel hub. turn. The signal output line of the wheel speed sensor is connected with the input end of the electronic anti-skid control box. The electro-hydraulic servo valve in this embodiment is installed in the accessory compartment of the aircraft. The oil inlet nozzle of the electro-hydraulic servo valve is connected with the output port of the brake valve through the hyd...

Embodiment 2

[0023] This embodiment proposes a method for controlling the aircraft anti-skid brake by using the aircraft anti-skid brake control system described in the embodiment, and the specific process includes the following steps:

[0024] Step 1, wheel speed detection. Using the conventional method, the speed of the left wheel is detected by the wheel speed sensor, and the collected speed signal of the left wheel is input to the speed level of the electronic anti-skid control box as the input of the anti-skid control.

[0025] Step 2, judging the authenticity of the wheel speed signal. Firstly, analyze and judge the authenticity of the received left wheel speed signal through the electronic anti-skid control box. If the judgment result is true, then enter step 3, the speed signal of the left wheel is output to the control stage of the electronic anti-skid control box as an effective signal, and the anti-skid control is carried out by the control stage of the electronic anti-skid con...

Embodiment 3

[0029] This embodiment proposes a method for controlling the aircraft anti-skid brake by using the aircraft anti-skid brake control system described in the embodiment, and the specific process includes the following steps:

[0030] Step 1, wheel speed detection. Using the conventional method, the speed of the left wheel is detected by the wheel speed sensor, and the collected speed signal of the left wheel is input to the speed level of the electronic anti-skid control box as the input of the anti-skid control.

[0031] Step 2, judging the authenticity of the turbine wheel speed signal. Firstly, analyze and judge the authenticity of the received left wheel speed signal through the electronic anti-skid control box. If the judgment result is true, then enter step 3, the speed signal of the left wheel is output to the control stage of the electronic anti-skid control box as an effective signal, and the anti-skid control is carried out by the control stage of the electronic anti-...

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Abstract

The invention relates to an airplane anti-skid brake control system and an airplane anti-skid brake control method. In the airplane anti-skid brake control system, two airplane wheel speed sensors are respectively applied to a left airplane wheel and a right airplane wheel of the airplane and connected with the input end of an electronic anti-skid control box; an electro-hydraulic servo valve is connected with a brake valve, a brake device, the electro-hydraulic servo valve and the electronic anti-skid control box respectively; the input port of the electronic anti-skid control box is connected with the airplane wheel speed sensors; and the output port of the electronic anti-skid control box is connected with the electro-hydraulic servo valve. In the invention, the electronic anti-skid control box judges true and false of the received airplane speed signal by comparing the airplane speed signal to be judged with the speed of the airplane wheels at different time or comparing the speed signals of the two airplane wheels so as to perform anti-skid control according to the speed signals of the airplane wheels which are judged to be true; and the airplane wheel brake pressure is adjusted according to the received instruction through the electro-hydraulic servo valve, so safe and reliable brake of the airplane wheels is realized.

Description

technical field [0001] The invention relates to an aircraft anti-skid brake control method and system, in particular to an aircraft anti-skid brake control method and system with a fail-safe function. Background technique [0002] The aircraft braking system is an integral part of the landing gear of modern aircraft. It is mainly used to ensure that the aircraft moves in a straight line after landing to shorten the run distance, stop the aircraft as soon as possible, and prevent the tires from bursting. The basic composition of the electronic anti-skid braking system includes three accessories: wheel speed sensor, electronic anti-skid control box and electro-hydraulic servo valve. The wheel speed sensor is mechanically connected with the brake wheel to detect the rotation speed of the wheel, and provides the wheel speed signal to the electronic anti-skid control box to reflect the motion state of the wheel. After the electronic antiskid control box receives the wheel speed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/46B60T8/34
Inventor 何永乐何文静
Owner XIAN AVIATION BRAKE TECH
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