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A fly-by-wire backup control system and method

A control system and backup technology, applied in the field of aircraft, can solve the problems of weak backup capability, short-term control capability, complex redundancy configuration and fault reconstruction logic, etc., to achieve the effect of ensuring safe flight and landing

Active Publication Date: 2022-01-21
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first backup solution is essentially an ultimate backup, which is more concise, but the backup capability is weaker, and it only has a short-term control capability to wait for the flight control system to recover
the second backup scheme has the ability to continue safe flight and landing, but employs complex redundancy configuration and fault reconfiguration logic

Method used

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  • A fly-by-wire backup control system and method
  • A fly-by-wire backup control system and method
  • A fly-by-wire backup control system and method

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Embodiment Construction

[0027] 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.

[0028] 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.

[0029] 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 a main control channel 101 and a backup channel 102 . The main control channel 101 may include a main control sensor module 112 (such as cockpit manipulation sensors and aircraft sensors), a main control computer 113 and corresponding various main control servo actuation modules 114 . The main control computer 113 can generate control commands based on the sensor signals from the main control sensor modu...

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Abstract

A fly-by-wire flight backup control system and method are disclosed. The fly-by-wire flight backup control system may include a backup sensor module and a backup control computer coupled to the backup sensor module, the backup control computer receiving status signals from a master channel, wherein the master channel generates control commands based on sensor signals from the master sensor module To control the main control servo actuation module, wherein when the status signal of the main control channel received by the backup control computer indicates that the main control channel fails, the backup control computer supplies power to the backup sensor module and the backup servo actuation module, and based on the slave backup sensor The sensor signals received by the module generate control commands to control the backup servo actuation module.

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] The flight control system is the key flight system of the aircraft and is crucial to the safety of the aircraft. According to the airworthiness clause 25.1309, a single failure, regardless of probability, cannot lead to catastrophic consequences. For the fly-by-wire flight control system using hardware redundancy, if there is a fault that causes both the main control system and the redundant system to fail to work normally, it may cause the failure of the entire flight control system, that is, a common mode problem occurs. The common mode problem will destroy the independence of the redundant architecture. Therefore, attention must be paid to the potential safety hazard that the flight control system may fail due to the common mode problem. For the current mainstream aircraft fly-by-wire flight control ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B9/03
CPCG05B9/03
Inventor 魏强郭建伟唐志帅高上柳剑锋王晨琳
Owner COMAC