Unlock instant, AI-driven research and patent intelligence for your innovation.

Braking method of automatic antiskid device of aircraft wheel

An automatic anti-skid, wheel technology, applied in the direction of brakes, etc., can solve the problems of inability to carefully distinguish the degree of wheel slip on the runway surface, low braking efficiency, and increased number of shallow slips.

Inactive Publication Date: 2016-01-20
XIAN AVIATION BRAKE TECH
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The automatic anti-skid device senses the deceleration rate of the wheels, and the threshold value is a fixed value. It cannot carefully distinguish the condition of the runway surface and the degree of slippage of the wheels. If the threshold value is set too high, it will easily cause deep skidding; if the threshold value is too low, the number of shallow skids will increase, and the braking efficiency will be low

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
  • Braking method of automatic antiskid device of aircraft wheel
  • Braking method of automatic antiskid device of aircraft wheel
  • Braking method of automatic antiskid device of aircraft wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] This embodiment is a braking method of an automatic wheel anti-skid device, and the automatic anti-skid device is used in the first anti-skid system of a certain type of aircraft inertial anti-skid braking system.

[0017] Step 1, a kind of braking method of aircraft wheel automatic anti-skid device, described automatic anti-skid device comprises centrifugal block, centrifugal block spring, flywheel and input shaft; It is characterized in that, the method comprises the steps:

[0018] Step 1, set the anti-skid coefficients A and B, the value range of A and B is 0.48~0.53;

[0019] Step 2, obtain the real-time wheel negative angular acceleration ε, and judge whether the negative angular acceleration ε reaches the minimum negative angular acceleration ε min , if the minimum negative angular acceleration ε is reached min , proceed to the next step;

[0020] Step 3, brake the wheel and control the braking force so that the negative angular acceleration ε of the wheel is g...

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 present invention relates to the field of aircraft antiskid braking systems, and specifically relates to a braking method of an automatic antiskid device of an aircraft wheel. The automatic antiskid device comprises a centrifugal block, a centrifugal block spring, a flywheel and an input shaft. To overcome strong 'pause' feeling of a pilot when a first antiskid system and a second antiskid system of an inertia braking system simultaneously operate in the prior art, and to overcome 'smoking' phenomenon of a tyre when the aircraft wheel is deeply skidding, the negative angular acceleration threshold value of the automatic antiskid device in the first antiskid system of the inertia braking system is optimized and designed.

Description

Technical field: [0001] The invention relates to the field of aircraft anti-skid braking systems, in particular to a braking method for an automatic wheel anti-skid device of an aircraft. Background technique: [0002] The automatic anti-skid device is used in the inertial anti-skid braking system. The inertial anti-skid braking system consists of two sets of anti-skid systems. The automatic anti-skid device is an important part of the first anti-skid system. The value of the negative angular acceleration is also different. When the negative angular acceleration of the wheel reaches the specified value, the brake pipeline of the product is connected with the oil return pipeline to reduce the brake pressure. Its function is to prevent the wheel from slipping and Drag the tires to slide to ensure the safe landing of the aircraft. It can be seen that the negative angular acceleration value when the automatic anti-skid device is working has an important impact on the braking eff...

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): B60T8/171B60T8/1761B60T8/54
CPCB60T8/1703B60T8/171B60T8/1761B60T8/54
Inventor 邵杰赵燕明
Owner XIAN AVIATION BRAKE TECH