Flight control system and flight control method

Abstract

The invention provides a flight control system and a flight control method. The flight control system has: a control device that provides the control command of the cockpit; a flight control device that receives the control command and generates a control command for controlling the rudder surface of the aircraft according to the control command; and controls the corresponding aircraft according to the generated control command. The flight control actuation device for rudder surface action. Flight control devices include enhanced command control equipment, basic command control equipment and backup control equipment. When the basic command control equipment is effective, the backup control equipment participates in the voting on the manipulation command received from the manipulation device and the voting on the control command; when the basic command control equipment fails, the backup control equipment generates a control command according to the above manipulation command, And send the generated control command to the flight control actuator. Thereby, it is possible to ensure accurate control of the rudder surface of the aircraft by the backup control device, and realize continuous and safe flight and landing of the aircraft.

Description

technical field [0001] The invention relates to the field of aircraft flight control, in particular to a flight control system and a flight control method. Background technique [0002] Flight control systems are complex and critical systems on modern civil aircraft and are critical to aircraft safety. At present, the flight control systems in the single-aisle or dual-aisle civil airliners that are put into operation in the world have all adopted some form of backup device. To prevent the ability to maintain some control over the aircraft after loss of all control electronics. [0003] For example, after the A320 aircraft manufactured by Airbus completely loses the fly-by-wire flight control system, it adopts a mechanical backup form to maintain the aircraft attitude in a short time until a certain flight control computer in the fly-by-wire flight control system is restarted. Stability, the pilot controls the rudder and horizontal stabilizer of the aircraft by manipulating...

AI Technical Summary

Problems solved by technology

[0006] However, the existing backup devices that adopt the form of electrical backup and meet the minimum acceptable control configuration are basically activated or allowed to enter the working state only after the fly-by-wire flight control system is completely lost, that is, after all flight control computers have failed. , so there is a problem that it takes a certain amount of time for the backup device to start and actually enter the working state, so a part of the precious time to maintain the stable attitude of the aircraft may be lost

In addition, after the backup device is activated, the availability and correctness of its instructions are unknown, so there is a problem that the accuracy of the control of the aircraft control surface by using the backup device cannot be guaranteed

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