CLOSED LOOP CONTROL OF AIRCRAFT CONTROL SURFACES
First Claim
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1. A method comprising:
- measuring a flight metric of an aircraft during flight;
calculating, using a processor, a deflection of a control surface of the aircraft based on the flight metric by adding a perturbation deflection to a deflection estimate that reduces drag; and
adjusting the deflection based on the calculated deflection to reduce a drag coefficient of the aircraft.
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Abstract
Closed loop control of control surfaces is described herein. One disclosed example method includes measuring a flight metric of an aircraft during flight and calculating, using a processor, a deflection of a control surface of the aircraft based on the flight metric. The disclosed example method also includes adjusting the deflection to an effective deflection level based on the calculated deflection to reduce a drag coefficient of the aircraft.
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Citations
27 Claims
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1. A method comprising:
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measuring a flight metric of an aircraft during flight; calculating, using a processor, a deflection of a control surface of the aircraft based on the flight metric by adding a perturbation deflection to a deflection estimate that reduces drag; and adjusting the deflection based on the calculated deflection to reduce a drag coefficient of the aircraft. - View Dependent Claims (3, 4, 5, 6, 7, 24)
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2. (canceled)
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8. A method comprising:
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measuring a flight metric of an aircraft; perturbing a control surface of the aircraft to a first angle; re-measuring the flight metric; calculating, using a processor, a second angle of the control surface based on the re-measured flight metric and one or more of a flight condition, or the measured flight metric, wherein the second angle includes an adjustment angle to reduce drag of the aircraft; and adjusting the control surface to the second angle. - View Dependent Claims (9, 10, 11, 12, 13, 14, 21, 23, 25)
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15. A method comprising:
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adjusting an aircraft control surface to a first angle, wherein the first angle includes a perturbation angle; measuring a flight metric after the aircraft reaches steady state; calculating, using a processor, a second angle of the aircraft control surface based on the measured flight metric to reduce a drag coefficient of the aircraft, wherein the second angle includes an adjustment angle; and adjusting the aircraft control surface to the second angle. - View Dependent Claims (16, 17, 18, 19, 20, 22, 26, 27)
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Specification