Health monitoring method for air entraining and/or air conditioning system of civil aircraft

Abstract

The invention discloses a health monitoring method for an air entraining and/or air conditioning system of a civil aircraft. According to the invention, the health state of the air entraining system and/or the air conditioning system is monitored by setting event logic for actively monitoring the health state of the air entraining system and/or the air conditioning system in an airborne ACMS system and customizing a message format containing state parameters of the air entraining system and/or the air conditioning system; and when the event logic is triggered due to reduction of the health state, the ACMS collects the state parameters according to the customized message and triggers aircraft downlink ACARS message information to a ground engineering monitoring module. According to the method, the health state of the air entraining system and/or the air conditioning system of the aircraft is monitored, the method is simple to implement and has universality, when the health state of theair entraining system and/or the air conditioning system is reduced, the messages containing the state parameters of the air entraining system and/or the air conditioning system automatically descendto the ground, and the unit and ground maintenance personnel are assisted in knowing changes of system key parameters when a fault occur, so that maintenance troubleshooting and fault positioning arefacilitated.

Description

Technical field [0001] The industry to which the present invention belongs is the civil aviation transportation industry, especially the civil aviation aircraft health monitoring field and the civil aviation maintenance engineering field. Background technique [0002] Related system introduction [0003] About the bleed air system of civil aviation aircraft [0004] The main source of pressurized air for civil aviation aircraft is engine compressor bleed air, which is the main source of air during normal flight of the aircraft. The bleed air system is mainly responsible for the air conditioning and pressurization of the aircraft cabin, the hot air anti-icing on the leading edge of the wing and the leading edge of the engine inlet, the pressurization of the air source for engine starting, drinking water and hydraulic oil tanks, etc. Since the outlet parameters of the engine compressor vary greatly with flight altitude, flight speed and engine operating conditions, in order to reduce...

AI Technical Summary

Problems solved by technology

The first method belongs to after-the-fact maintenance and troubleshooting

The second method belongs to preventive maintenance, but the effect is not good, and it is not targeted. Usually, when the bleed air health check task is carried out, the bleed air system is in good health, but it may break down soon, that is to say, the second This method cannot achieve fault location prediction and accurate preventive maintenance

The first and second methods belong to after-event maintenance and troubleshooting

The third method belongs to preventive maintenance, but the effect is not good, it is not targeted, and it cannot realize fault location prediction and accurate preventive maintenance

The parameters of the bleed air system and the air conditioning system in the No. 19 message are incomplete, and cannot assist the maintenance to accurately locate the fault of the aircraft

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