Fault diagnosis system and method for full fly-by-wire flight control

Abstract

The invention discloses a fault diagnosis system and method for a full-fly-by-wire flight control, including a fault query module, an expert knowledge base module, a fault database module and a fault record module; the invention can automatically determine the fault code according to the fault code recorded by the flight control computer All possible fault causes of the flight control fault are given, and the fault probability, fault handling measures and related circuit diagrams corresponding to each fault cause are given; the fault probability corresponding to the fault reason includes the fault probability estimated by experts, and the machine learning based on the fault database. Estimated probability and database statistics of failure probability in recent times. This method can effectively solve the problems of time-consuming fault diagnosis and positioning of the existing flight control, low accuracy, and high requirements for the technical level of ground personnel.

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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