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Flight-by-wire backup control system and method

A control system and main control system technology, applied in the field of aircraft, can solve the problems of many backup devices, the inability to guarantee the independence of the main control system and backup control system, and the difficulty of system reconstruction

Pending Publication Date: 2022-03-01
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing backup scheme requires a lot of backup devices, the system reconstruction is difficult, and the remote control electronics (REU) need to exchange information, which cannot guarantee the independence of the main control system and the backup control system

Method used

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  • Flight-by-wire backup control system and method
  • Flight-by-wire backup control system and method
  • Flight-by-wire backup control system and method

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0033] The invention provides a backup control system (BCS) independent of the main control channel, which effectively improves the safety margin of the flight control system.

[0034] figure 1 is a schematic diagram of a flight control system architecture 100 according to one embodiment of the present invention. The flight control system architecture 100 may include one or more flight control computers 102. The flight control computer 102 may perform control law calculations and generate control commands based on input signals from the cockpit control devices 101, and transmit the control commands to the The remote control electronic unit (REU) 103 on the steering surface controls the corresponding steering surface actuator 104, so as to drive the steering surface to...

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Abstract

A fly-by-wire backup control system and method are disclosed. The fly-by-wire backup control system comprises a backup control computer which receives fault information of a master control system, and the backup control computer identifies a flight control computer which works normally based on the fault information of the master control system; and a backup remote control electronic unit (EREU) located on the control surface, the EREU being connected to the backup control computer, where the backup control computer identifies the control surface having the EREU and connected to the normally working flight control computer as a force fighting control surface, and the backup control command from the backup control computer is prevented from being used for controlling the associated control surface actuator.

Description

technical field [0001] The invention relates to the field of aircraft, in particular to a fly-by-wire flight backup control system and method. Background technique [0002] In the development process of the fly-by-wire flight control system, the highly complex redundant electronic equipment has a high degree of similarity, and the possibility of simultaneous failure of the redundant electronic equipment due to common mode faults cannot be completely ruled out. Probability can not lead to catastrophic consequences "required risk. [0003] Although the design of the fly-by-wire flight control system has taken into account the influence of common mode factors caused by external factors such as lightning, in order to enhance the confidence of the bureau, airlines, pilots and the public, it is also out of market competition needs and taking into account the design Inheritance and conservatism, the current mainstream airliners have taken some measures to alleviate the common mode...

Claims

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Application Information

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IPC IPC(8): G05B9/03
CPCG05B9/03
Inventor 沈迎春郭建伟王晨琳魏强唐志帅
Owner COMAC