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System and method for monitoring critical components on an aircraft

A key and component technology, applied in the field of detection of faulty deicing heaters

Active Publication Date: 2022-06-03
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, flight data detectors are often replaced prematurely, even if they are functioning properly

Method used

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  • System and method for monitoring critical components on an aircraft
  • System and method for monitoring critical components on an aircraft
  • System and method for monitoring critical components on an aircraft

Examples

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Embodiment Construction

[0033] refer to figure 1 , an onboard critical component monitoring system 10 constructed in accordance with one embodiment of the present invention will now be described. The onboard monitoring system 10 is configured to monitor the health of the critical components 14a - 14c on the aircraft 12 . In the illustrated embodiment, each of the critical components 14a-14c (hereinafter collectively referred to as critical components 14) is an electrical de-icing heater that is embedded or otherwise integrated into the airspeed detectors 16a-14. In 16c, the airspeed detectors 16a-16c are mounted to the structure of the aircraft 12 and exposed to the external environment. However, any of critical components 14a-14c may be any component whose failure or degradation could adversely affect the safety of passengers or crew on board aircraft 12, or otherwise prevent or impede pilots from flying the aircraft 12Fly to its intended destination.

[0034] In the illustrated embodiment, the a...

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Abstract

The present application provides systems and methods for monitoring critical components on an aircraft. A system (10) and method for monitoring critical components (14) (eg, electric deicing heaters) on an aircraft (12). A first current is input into the critical component (14), a second current is returned from the critical component (14), and a differential current of the critical component (14) is detected. The differential current is the difference between the first current and the second current. A differential current signal is generated from the detected differential current. The differential current signal is compared to a differential current threshold and based on the comparison a preventive action is triggered. The deterioration trend of the key component (14) is monitored by tracking the variation of the differential current of the key component (14) with time.

Description

technical field [0001] The present disclosure relates generally to the detection of faulty components on aircraft, and in particular, to the detection of faulty de-icing heaters on wide-body aircraft. Background technique [0002] Aircraft flight depends on the proper functioning of various control surfaces, sensors, transducers, and detectors. Many of these critical components are installed on the outside of the aircraft and thus face several environmental challenges. The accumulation of ice, snow, or frost on the leading edge and on the surfaces of the horizontal and vertical stabilizers can alter their aerodynamic shape, eventually leading to loss of control or insufficient lift to keep the aircraft in the air. The build-up of ice, snow, or frost on sensors, transducers, and detectors results in erroneous data readings and also has a detrimental, catastrophic impact on aircraft functionality. [0003] To prevent ice formation during flight, the melting is performed usin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R19/165G01R15/18G01R31/50
CPCG01R15/183G01R19/16571G01R31/00B64D15/12H02H3/33G01R31/008B64D45/00B64D2045/0085G01R31/54G01R31/52G01R31/50G08B21/182G08B21/185G08B21/20G08B31/00B64F5/60
Inventor 丰·石
Owner THE BOEING CO
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