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Three-redundancy airplane brake control system

A brake control and brake system technology, applied in the direction of aircraft brake arrangement, control mechanism, etc., can solve the problems of low reliability and safety of aircraft landing

Pending Publication Date: 2022-07-29
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this aircraft braking system is that once the supply pressure of the normal braking system fails, only the emergency braking can be used to brake the aircraft. Less reliable and less secure

Method used

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  • Three-redundancy airplane brake control system
  • Three-redundancy airplane brake control system
  • Three-redundancy airplane brake control system

Examples

Experimental program
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Effect test

Embodiment

[0043] A three-redundancy aircraft braking control system adopts the normal braking system electrical double redundancy, hydraulic double redundancy + emergency braking system electric control single redundancy.

[0044] A three-redundant aircraft braking control system includes a normal braking system and an emergency braking system, and the normal braking system and the emergency braking system are in a parallel relationship. By default, the normal braking system implements wheel braking, that is, when the normal braking system is faultless, the normal braking system guarantees the wheel braking; when the normal braking system fails, the emergency braking system guarantees the wheel braking. The principle of the three-redundant brake control system is as follows figure 1 shown.

[0045] The normal braking system consists of main brake control and backup brake control. The main brake control and the standby brake control are in parallel mode. When the main brake control is ...

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Abstract

The invention relates to a three-redundancy aircraft brake control system, which mainly comprises a normal brake system and an emergency brake system, and adopts normal brake system electrical dual redundancy, hydraulic dual redundancy and emergency brake system electric control single redundancy. The normal braking system and the emergency braking system are in a parallel relation. The normal braking system is defaulted to implement airplane wheel braking, and when the normal braking system breaks down, the emergency braking system guarantees airplane wheel braking. The normal braking system is composed of an instruction sensor, a control module, an integrated control valve, an integrated change-over valve, a speed sensor, a change-over valve and an energy change-over valve. The emergency brake system adopts a telex control mode and is composed of a pressure accumulator, an emergency electro-hydraulic energy assembly, an emergency brake control unit, a shutdown / emergency brake valve and a hydraulic insurance. The probability of brake failure caused by hydraulic energy failure is 2.4 E-10 / fh, and compared with a two-redundancy aircraft brake control system, the safety and reliability of the brake system are improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft brake system control, in particular to a three-redundant brake control system. Background technique [0002] The aircraft braking control system is an important device for aircraft braking. The reliability and safety of the braking system are directly related to the take-off and landing safety of the aircraft, which requires the aircraft braking system to have the characteristics of high reliability and high safety. [0003] Modern aircraft landing gear is a multi-wheel system. At present, the design of aircraft braking system generally adopts the normal braking system + emergency braking system architecture. The aircraft brake control system adopts two redundancy, which refers to the electrical double redundancy of the normal braking system, the hydraulic single redundancy + the mechanical single redundancy of the emergency braking system. That is, the normal braking system adopts telex control...

Claims

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Application Information

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IPC IPC(8): B64C25/44
CPCB64C25/44
Inventor 李文娟周宏博李林蔚杨金日李晓猛王媛媛彭娟
Owner XIAN AVIATION BRAKE TECH