Variable-gain brake command sensor and method for determining design parameter

A braking command and sensor technology, applied in the field of variable gain braking command sensor and determining design parameters, can solve the problems of low braking efficiency and high human factors

Pending Publication Date: 2019-09-06
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of high human factors and low braking efficiency in the braking process existing in the prior art, the present invention proposes a variable gain braking command sensor and a method for determining design parameters

Method used

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  • Variable-gain brake command sensor and method for determining design parameter
  • Variable-gain brake command sensor and method for determining design parameter
  • Variable-gain brake command sensor and method for determining design parameter

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Embodiment Construction

[0098] This embodiment is a variable gain brake command sensor, which includes a housing 1, a positioning sleeve 2, a return spring 3, a reset piston 4, a force-sensing piston 5, a first force-sensing spring 6, a second force-sensing Spring 7, stop sleeve 8, movable bracket assembly 9, lock nut 10, washer 11, sealing ring 12, stop sleeve nut 13, reset piston fixing nut 14, top sleeve 15, washer 16, nut 17 and fixed bracket assembly 18. in:

[0099] The brake command sensor is obtained after improving the prior art. The brake command sensor includes a movable bracket assembly 9, a lock nut 10, a top sleeve 15, a fixed bracket assembly 18, a housing 1, a positioning sleeve 2, a return spring 3, a reset piston 4, a force-sensing piston 5, and a first force-sensing spring 6. The second force-sensing spring 7 and the stop sleeve 8. The improvement of this embodiment over the prior art is that a second force-sensing spring 7 is added to the brake command sensor. The parts of the...

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Abstract

The invention relate to a variable-gain brake command sensor and a method for determining a design parameter. A first force sensing spring and a second force sensing spring that have different lengthsare disposed in the brake command sensor; and thus the variable-gain brake command sensor has different control forces and stroke gains to meet aircraft's requirements for different landing conditions. When an aircraft is in n abnormal landing state, a maximum controlling force is outputted and the stroke of the command sensor is maximized, and the first force sensing spring and the second forcesensing spring work simultaneously to ensure safe braking of the aircraft. When the aircraft is in a normal landing brake state, the outputted controlling force is not larger than the median controlling force and only the first force sensing spring works to ensure that the aircraft does not slip during the braking process, so that the requirements of the braking system by various landing states of the aircraft are met. The adaptability of the braking system to the various take-off and landing states of the aircraft is improved; the number of anti-skidding of the wheel in the landing braking process of the aircraft can be reduced and even anti-skidding can be prevented completely; the tire wearing uniformity is ensured; the service life of the brake wheel is prolonged; and the braking efficiency is improved.

Description

technical field [0001] The invention relates to the field of aircraft braking systems, in particular to a variable gain braking command sensor and a method for determining design parameters. Background technique [0002] The landing weight of the existing aircraft is getting heavier and the braking speed is getting higher and higher. The anti-skid braking system of the aircraft meets the requirements of normal landing braking, maximum landing braking, normal landing without parachute braking, maximum landing without parachute braking, and aborted takeoff braking. The braking pressure that meets the braking requirements varies widely. The rated braking pressure of the existing digital fly-by-wire anti-skid braking system must meet the braking requirements of the most severe conditions of the aircraft, so the rated braking pressure set by the digital fly-by-wire anti-skid braking system is relatively large. [0003] The prior art aircraft digital fly-by-wire anti-skid braking ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/04B64F5/00
CPCB64F5/00G01L1/04
Inventor 刘忠平韩亚国张鹏亮董智超
Owner XIAN AVIATION BRAKE TECH
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