Airborne fuel system fuel consumption estimation and health monitor method

Abstract

The invention relates to an airborne fuel system fuel consumption estimation and health monitor method. The method comprises the following steps of: processing a data sample; building and training a fuel consumption estimation model; integrating the whole leg by taking a fuel flow predicted value and flight time as marks, so as to obtain a predicted value of a fuel consumption gross of a flight inone flight; on the basis of an obtained fuel flow model, adding channels of flight faults and abnormal events for an output layer; inputting obtained training data sample into the fuel flow model improved in the fourth step as a training sample, and carrying out training to obtain fuel flow model which is capable of monitoring airplane faults and abnormities according to airplane data; and inputting data of unmarked faults and abnormities which only undergo packet loss and addition/deletion processing into the fuel flow model improved in the fifth step as test data, so as to monitor the dataof unknown faults and abnormities.

Description

technical field [0001] The invention belongs to the field of aviation fuel systems, and relates to a fuel consumption estimation and health monitoring method for an airborne fuel system. Background technique [0002] For civil aviation companies, aviation fuel cost control and fuel system operation safety are one of their most concerned contents. Airlines at home and abroad have carried out work and research on fuel systems around fuel saving. important issues for the company. The basic idea is to analyze and study the factors that affect aviation fuel consumption, and establish an aircraft fuel consumption estimation model, so as to improve the fuel estimation accuracy of the flight plan route and reduce the fuel consumption cost. At the same time, in terms of monitoring and isolating the failure and abnormality of the fuel system, the health monitoring method is mainly completed through the self-test software and hardware of the fuel system. [0003] Most of the existing...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing fuel consumption estimation methods are estimating the fuel consumption of the cruising section, and cannot predict the fuel consumption of the whole course of flight, and a large part of the fuel consumption of short-range flights depends on the stage of take-off, climbing and landing, so these methods are not suitable for practical engineering applications

These methods also seldom take into account the impact of weather, horizontal plane movement, acceleration and other factors on fuel consumption, and the factors considered are not comprehensive. Generally, the impact of weather (wind, temperature) on fuel is not considered, let alone the engine performance attenuation and the smoothness of the fuselage. Increased fuel consumption due to variation

In terms of monitoring and isolation of fuel system failures and abnormalities, the health monitoring method mainly relies on the self-test software of the fuel system to provide health information to the on-board maintenance system, and fails to make full use of aircraft flight data, and there is room for improvement

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