Method and device for providing automatic load alleviation to a high lift surface system, in particular to a landing flap system, of an aircraft
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United States of America Patent
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Sep 4, 2012
Grant Date -
Feb 25, 2010
app pub date -
Dec 8, 2006
filing date -
Dec 13, 2005
priority date (Note) -
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Abstract
A method and a device for providing automatic load alleviation to a high lift surface system, in particular to a landing flap system, of an aircraft when a blockage occurs, wherein in response to a control signal emitted by a control device at least one high lift surface, which is actuated by means of a local mechanical final control element, is brought to a predetermined position by a central drive unit that is connected by way of a rotary shaft arrangement to the local final control element by generating a torque transmitted by the central drive unit to the rotary shaft arrangement. If a signal is registered that indicates that there is a blockage within the high lift surface system, the torque transmitted by the central drive unit to the rotary shaft arrangement is automatically reduced to a predetermined low torque value, and the position of the high lift surface system is fixed.
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