METHOD FOR DETERMINING A STATE OF A COMPONENT IN A HIGH LIFT SYSTEM OF AN AIRCRAFT
First Claim
1. A method for determining a state of a component in a high lift system of an aircraft, the high lift system comprising a central power control unit for providing rotational power by means of a transmission shaft;
- drive stations coupled with the power control unit;
movable high lift surfaces; and
a control unit, wherein each high lift surface is coupled with at least two of the drive stations by means of drive struts, wherein at each high lift surface at least one of the associated drive struts is a load sensing drive strut;
the method comprising the steps of;
extending at least one high lift surface to a first extended position,acquiring a first load sensed by a load sensing drive strut associated with the at least one high lift surface at a first flight state having a first speed,comparing the first load with a known nominal load for the first extended position and the first flight state under consideration of a predetermined threshold, andproducing an alarm signal of the acquired load differs from the nominal load including the predetermined threshold.
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Accused Products
Abstract
A method for determining a state of a component in a high lift system of an aircraft comprises the steps of extending at least one high lift surface, which is coupled with two drive struts, wherein at least one of the two drive struts is a load sensing drive strut, to a first extended position, acquiring a first load sensed by a load sensing drive strut associated with the at least one high lift surface at a first flight state having a first speed, comparing the first load with a known nominal load for the first extended position and the first flight state under consideration of a predetermined threshold, and producing an alarm signal in case the acquired load differs from the nominal load including the predetermined threshold.
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Citations
16 Claims
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1. A method for determining a state of a component in a high lift system of an aircraft, the high lift system comprising a central power control unit for providing rotational power by means of a transmission shaft;
- drive stations coupled with the power control unit;
movable high lift surfaces; and
a control unit, wherein each high lift surface is coupled with at least two of the drive stations by means of drive struts, wherein at each high lift surface at least one of the associated drive struts is a load sensing drive strut;
the method comprising the steps of;extending at least one high lift surface to a first extended position, acquiring a first load sensed by a load sensing drive strut associated with the at least one high lift surface at a first flight state having a first speed, comparing the first load with a known nominal load for the first extended position and the first flight state under consideration of a predetermined threshold, and producing an alarm signal of the acquired load differs from the nominal load including the predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- drive stations coupled with the power control unit;
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10. A high lift system of an aircraft, comprising:
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a central power control unit for providing rotational power; a transmission shaft; drive stations coupled with the power control unit by means of the transmission shaft; movable high lift surfaces; and a control unit, wherein each high lift surface is coupled with at least two of the drive stations by means of drive struts, wherein at each high lift surface at least one of the associated drive struts is a load sensing drive strut, wherein the control unit is adapted for acquiring a first load sensed by a load sensing drive strut associated with the at least one high lift surface at a first flight state having a first speed at a first extended position, comparing the first load with a known nominal load for the first extended position and the first flight state under consideration of a predetermined threshold, and producing an alarm signal in case the acquired load differs from the nominal load including the predetermined threshold. - View Dependent Claims (11, 12, 13)
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14. A method for determining a state of a component in a high lift system of an aircraft, the high lift system comprising a central power control unit for providing rotational power by means of a transmission shaft;
- drive stations coupled with the power control unit;
movable high lift surfaces; and
a control unit, wherein each high lift surface is coupled with at least two of the drive stations by means of drive struts, wherein at each high lift surface at least one of the associated drive struts is a load sensing drive strut;
the method comprising the steps of;extending at least one high lift surface to a first extended position, acquiring a first load sensed by a load sensing drive strut associated with the at least one high lift surface at a first flight state having a first speed, comparing the first load with a known nominal load for the first extended position and the first flight state under consideration of a predetermined threshold, and producing an alarm signal of the acquired load differs from the nominal load including the predetermined threshold, acquiring a second load sensed by a load sensing drive strut associated with the at least one high lift surface at a second extended position at a second flight state of the aircraft having a second speed, which is lower than the first flight speed, adjusting the value of the first load through subtracting the value of the second load, before comparing the first load with a known nominal load for the first extended position, wherein the second extended position is substantially equal to the first extended position. - View Dependent Claims (15, 16)
- drive stations coupled with the power control unit;
Specification