FAIL-PASSIVE VARIABLE GRADIENT CONTROL STICK DRIVE SYSTEM
First Claim
1. A control system for an aircraft comprising:
- a passive feedback arrangement movable relative to a mechanical ground;
a stick moveable relative to the mechanical ground and the passive feedback arrangement, the passive feedback arrangement acting on the stick to resist movement of the stick relative to the passive feedback arrangement;
a positioning arrangement being coupled to the passive feedback arrangement for adjusting the position of the passive feedback arrangement relative to the mechanical ground in response to movement of the stick relative to the mechanical ground.
1 Assignment
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Accused Products
Abstract
A control system for an aircraft including a passive feedback arrangement, a stick and a positioning arrangement is provided that provides for user adjustability of the resistance applied to the stick, such as in a fly-by-wire system. The passive feedback arrangement is movable relative to a mechanical ground. The stick is moveable relative to the mechanical ground and the passive feedback arrangement. The passive feedback arrangement acts on the stick to resist movement of the stick relative to the passive feedback arrangement. This resistance provides passive feedback to the pilot for the fly-by-wire system. The positioning arrangement is coupled to the passive feedback arrangement for adjusting the position of the passive feedback arrangement relative to the mechanical ground in response to movement of the stick relative to the mechanical ground.
24 Citations
25 Claims
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1. A control system for an aircraft comprising:
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a passive feedback arrangement movable relative to a mechanical ground; a stick moveable relative to the mechanical ground and the passive feedback arrangement, the passive feedback arrangement acting on the stick to resist movement of the stick relative to the passive feedback arrangement; a positioning arrangement being coupled to the passive feedback arrangement for adjusting the position of the passive feedback arrangement relative to the mechanical ground in response to movement of the stick relative to the mechanical ground. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of resisting movement of a stick of an aircraft control system comprising the steps of:
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sensing movement of stick relative to a mechanical ground; and adjusting a position of a passive feedback arrangement relative to the mechanical ground in response to the sensed movement of the stick relative to the mechanical ground, the passive feedback arrangement providing resistance to the movement of the stick relative to the mechanical ground. - View Dependent Claims (24, 25)
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Specification