Full fly-by-wire flight control fault diagnosis system and method

Abstract

The invention discloses a full fly-by-wire flight control fault diagnosis system and method. The system comprises a fault query module, an expert knowledge base module, a fault database module and a fault recording module. According to the invention, all possible fault causes of a flight control fault can be automatically judged according to a fault code recorded by a flight control computer, and the fault probability, the fault handling measure and the related circuit diagram corresponding to each fault cause are given; the fault probability corresponding to the fault reasons comprise an expert reckoning fault probability, a fault database-based machine learning reckoning probability and a database recent statistics fault probability; and through the method, the problems that existing flight control fault diagnosis and positioning consume long time and are not high in accuracy, and the requirement for the technical level of a ground crew is high can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of aircraft fault diagnosis, and in particular relates to a fault diagnosis system and method for a full fly-by-wire flight control. Background technique [0002] The flight control computer is the control core of the full fly-by-wire flight control system. The flight control computer receives the pilot's control commands and the electrical signals sent by the flight control sensors, and after comprehensive calculation, outputs control commands to the flight control actuators to drive the deflection of each rudder surface of the aircraft. Control the plane to fly safely. [0003] The flight control computer of the full fly-by-wire flight control system has an internal self-test function. When the flight control system fails, the flight control computer can detect the fault and record the fault for the aircraft ground maintenance personnel to diagnose the flight control fault. At present, the flight control ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention proposes a diagnostic system and method for all fly-by-wire flight control faults, which can automatically determine all possible fault causes of flight control faults, and give the corresponding fault probability and correlation of each fault cause. The circuit diagram solves the problems of time-consuming fault diagnosis and positioning of the existing flight control, low accuracy, and high technical requirements for ground crews

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