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Aircraft automatic braking system directly controlled by automatic braking switch

A technology of automatic braking and braking system, which is applied in the direction of aircraft braking arrangements, braking transmission devices, brakes, etc., can solve problems such as difficulty in troubleshooting and positioning, low reliability in use, and potential safety hazards, so as to improve the utilization of airport runways High efficiency and equipment utilization, high reliability, flexible and convenient use

Active Publication Date: 2020-04-28
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 problems of complex configuration, frequent faults, difficulty in troubleshooting and positioning, low reliability in use, multiple logical relationships and even potential safety hazards in the existing braking system, the present invention proposes a brake system directly controlled by an automatic brake switch. aircraft automatic braking system

Method used

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  • Aircraft automatic braking system directly controlled by automatic braking switch
  • Aircraft automatic braking system directly controlled by automatic braking switch

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Embodiment 1

[0025] The present embodiment is an aircraft electro-hydraulic braking system with a first-level automatic braking capability.

[0026] The front landing gear wheels of modern aircraft generally do not have brakes, and brake devices are equipped on the wheels of the two main landing gears. The two aircraft main landing gears are usually arranged symmetrically on both sides of the aircraft fuselage. In this embodiment, one of the main landing gear and one wheel is installed as an example to illustrate an aircraft fly-by-wire hydraulic braking system with automatic braking capability.

[0027] This embodiment is a first-level automatic brake; the automatic brake anti-skid valve adopts a shared anti-skid valve, and an electro-hydraulic servo valve is used as the anti-skid valve.

[0028] This embodiment is an aircraft fly-by-wire hydraulic braking system with automatic braking capability, including: a braking command sensor 1, a control box 3, an electro-hydraulic servo valve 2,...

Embodiment 2

[0037] This embodiment is an aircraft fly-by-wire hydraulic braking system with automatic braking capability. The difference from the technical solution in Embodiment 1 is that the aircraft fly-by-wire hydraulic braking system of this embodiment is a two-stage automatic braking system.

[0038] This embodiment includes: a brake command sensor 1 , a control box 3 , an electro-hydraulic servo valve 2 , a first automatic brake switch K1 , a second automatic brake switch K2 , a throttle 7 , a one-way valve 6 and a speed sensor 4 . Among them: the first automatic brake switch K1 and the second automatic brake switch K2 are installed in the cockpit; the first automatic brake switch K1 and the second automatic brake switch K2 are electrically connected to the electro-hydraulic servo valve 2 through cables; the first automatic brake switch The switch K1 and the second automatic brake switch K2 are manually operated by the driver, and the first automatic brake switch K1 and the second a...

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Abstract

The invention discloses an airplane automatic brake system directly controlled by an automatic brake switch. A conventional brake system is composed of a brake instruction sensor, a control box, an electro-hydraulic servo valve and a speed sensor; a conventional anti-sliding system is composed of the control box, the electro-hydraulic servo valve and the speed sensor; the automatic brake system iscomposed of the automatic brake switch K or a first automatic brake switch K1 and a second automatic brake switch K2, the speed sensor and the control box. All the automatic brake switches provide enable electrical signals capable of switching on or switching off automatic brake for the electro-hydraulic servo valve to achieve automatic brake controlling. According to the airplane automatic brakesystem directly controlled by the automatic brake switch, the normal brake-system running selection range is completed and widened, potential of the brake system can be fully developed, the distanceof landing run is shortened by about 35%, taking-off and landing safety of an airplane is guaranteed, the airport runway utilization rate and the equipment utilization rate are increased, and economic, societal and military benefits are obvious.

Description

technical field [0001] The invention relates to an aircraft wheel fly-by-wire braking system, in particular to an aircraft fly-by-wire braking system with automatic braking capability. Background technique [0002] The aircraft wheel brake system is a component of modern aircraft landing gear, and is the basic guarantee equipment for the safe operation of aircraft take-off, landing roll and ground taxi control. Prevent punctured tires. Experimental research and use have shown that under certain conditions, the use of automatic braking can effectively shorten the landing roll distance of the aircraft. Automatic braking has also been long-awaited to relieve the driver of the load during safety-critical landings. At present, general aircraft do not have the ability to automatically brake, including aircraft using fly-by-wire brakes. When braking, the driver needs to step on the brake pedal or control the brake handle to manipulate the brake valve or brake command sensor. Only...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/17B60T8/171B60T8/32B60T13/68B64C25/44
CPCB60T8/1703B60T8/171B60T8/32B60T13/686B64C25/44
Inventor 何永乐何文静陆贤坤
Owner XIAN AVIATION BRAKE TECH
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