Control device with a control stick, particularly a servo sidestick for aircraft
First Claim
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1. A control device comprising:
- (a) a control stick which is displaceable in at least one degree of freedom and which has a user-applied force applied thereto by a user;
(b) means for reproducing, at said control stick, a feeling of a reacting force which reacts against the user-applied force;
(c) a computer;
(d) an irreversible actuator which is coupled to said control stick and which controls displacement of said control stick, said irreversible actuator in turn being coupled to said computer, said control stick being displaceable by said irreversible actuator but said irreversible actuator not being displaceable by the user applied force applied to said control stick;
(e) a force detector which is associated with said control stick and which measures the user-applied force and supplies user-applied force data, indicative of the user-applied force, to said computer; and
(f) a position detector which is associated with said control stick and which supplies said computer with a feedback of actual position of said control stick;
wherein;
said computer controls operation of said irreversible actuator and thus the displacement of said stick; and
said computer servos the position of said control stick to the user-applied force, as a function of the user-applied force data and the actual position of said control stick, via a position versus force law entered in said computer.
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Abstract
A control device with a control stick, wherein the control stick is moved by an irreversible actuator controlled by a computer, and the computer controls the position of the actuator and thus the movement of the control stick, and slaves the control column position to the force applied, in accordance with force data, from a force sensor, and position data, from a position sensor, through use of a position vs. force law entered in the computer.
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10 Claims
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1. A control device comprising:
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(a) a control stick which is displaceable in at least one degree of freedom and which has a user-applied force applied thereto by a user; (b) means for reproducing, at said control stick, a feeling of a reacting force which reacts against the user-applied force; (c) a computer; (d) an irreversible actuator which is coupled to said control stick and which controls displacement of said control stick, said irreversible actuator in turn being coupled to said computer, said control stick being displaceable by said irreversible actuator but said irreversible actuator not being displaceable by the user applied force applied to said control stick; (e) a force detector which is associated with said control stick and which measures the user-applied force and supplies user-applied force data, indicative of the user-applied force, to said computer; and (f) a position detector which is associated with said control stick and which supplies said computer with a feedback of actual position of said control stick; wherein; said computer controls operation of said irreversible actuator and thus the displacement of said stick; and said computer servos the position of said control stick to the user-applied force, as a function of the user-applied force data and the actual position of said control stick, via a position versus force law entered in said computer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification