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US 10,894,598 B2Granted
Landing gear controller
AssigneeAirbus Operations GmbH
InventorDavid Flinton
Life of this patent
Estimating the term…
Abstract
A landing gear controller for an aircraft is configured to: detect an extension time for a landing gear, and if the detected extension time meets a predetermined criterion, provide a warning signal to indicate potential failure of a landing gear uplock hook. The landing gear controller may be in a landing gear system.
Claims7
A landing gear controller for an aircraft including two main landing gears, the landing gear controller configured to:
- detect an extension time for each of the two main landing gears of the aircraft;
- determine a difference between the detected extension times for the two main landing gears;
- compare the difference between the detected extension times to a predetermined threshold difference in the extension times of the two main landing gears;
- and
- if the difference between the detected extension times exceeds the predetermined threshold difference, provide a warning signal to indicate potential failure of a landing gear uplock hook for at least one of the two main landing gears to hold the at least one of the two main landing gears in a retraction position.
2 more elements
A method to detect failure of a landing gear uplock hook, the method comprising:
- moving a landing gear bay door from a closed position to an open position;
- extending a landing gear from a retracted position to an extended position,
- measuring an extension time for the landing gear,
- determining if the measured time meets a predefined criterion, and
- if the predefined criterion is met, providing a warning signal to indicate potential failure of a landing gear uplock hook,
- wherein the extending comprises extending two main landing gears from a retracted position to an extended position, and the method comprises:
- measuring the extension time for the two main landing gears on an aircraft,
- determining a difference between the extension time for each of the respective main landing gears, and
- if the difference exceeds a threshold, providing the warning signal.
6 more elements
Dependencies are inferred from the claim text.