Pilot flight control stick haptic feedback system and method
First Claim
1. A pilot flight control stick haptic feedback system, comprising:
- a pilot user interface configured to receive user input and, upon receipt thereof, to move to a position at a movement rate;
a position sensor coupled to, and configured to sense the position of, the pilot user interface, the position sensor further configured to supply a pilot user interface position signal representative of the pilot user interface position;
a pilot motor coupled to the pilot user interface, the pilot motor further coupled to receive pilot motor feedback signals and operable, upon receipt thereof, to supply a feedback force to the pilot user interface at a magnitude based on the pilot motor feedback signals; and
a control circuit coupled to receive at least the pilot user interface position signal and configured to;
(i) determine the pilot user interface movement rate, aircraft control surface slew rate capacity, and aircraft control surface load rate capacity, and(ii) supply the pilot motor feedback signals to the pilot motor based at least in part on the determined pilot user interface movement rate, the determined aircraft control surface slew rate capacity, and the determined aircraft control surface load rate capacity.
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Accused Products
Abstract
A pilot flight control stick haptic feedback system includes a pilot user interface, a position sensor, a pilot motor, and a control circuit. The pilot user interface is movable to a position at a movement rate. The position sensor senses the position of the pilot user interface and supplies a pilot user interface position signal. The pilot motor is coupled to the pilot user interface, and receives pilot motor feedback signals. The pilot motor, in response to the pilot motor feedback signals, supplies feedback force to the pilot user interface. The control circuit determines one or more of the pilot user interface position, movement rate, aircraft control surface slew rate capacity, aircraft control surface load rate capacity, and aerodynamic stall risk and, based on at least a subset of these determinations, supplies pilot motor feedback signals to the pilot motor.
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Citations
14 Claims
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1. A pilot flight control stick haptic feedback system, comprising:
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a pilot user interface configured to receive user input and, upon receipt thereof, to move to a position at a movement rate; a position sensor coupled to, and configured to sense the position of, the pilot user interface, the position sensor further configured to supply a pilot user interface position signal representative of the pilot user interface position; a pilot motor coupled to the pilot user interface, the pilot motor further coupled to receive pilot motor feedback signals and operable, upon receipt thereof, to supply a feedback force to the pilot user interface at a magnitude based on the pilot motor feedback signals; and a control circuit coupled to receive at least the pilot user interface position signal and configured to; (i) determine the pilot user interface movement rate, aircraft control surface slew rate capacity, and aircraft control surface load rate capacity, and (ii) supply the pilot motor feedback signals to the pilot motor based at least in part on the determined pilot user interface movement rate, the determined aircraft control surface slew rate capacity, and the determined aircraft control surface load rate capacity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A pilot flight control stick haptic feedback system, comprising:
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a pilot user interface configured to receive user input and, upon receipt thereof, to move to a position at a movement rate; a position sensor coupled to, and configured to sense the position of, the pilot user interface, the position sensor further configured to supply a pilot user interface position signal representative of the pilot user interface position; a pilot motor coupled to the pilot user interface, the pilot motor further coupled to receive pilot motor feedback signals and operable, upon receipt thereof, to supply a feedback force to the pilot user interface at a magnitude based on the pilot motor feedback signals; and a control circuit coupled to receive at least the pilot user interface position signal and configured to; (i) determine the pilot user interface movement rate, aircraft control surface slew rate capacity, and aircraft control surface load rate capacity, (ii) determine an aerodynamic stall risk based on the pilot user interface position, and (ii) supply the pilot motor feedback signals to the pilot motor based at least in part on the determined pilot user interface movement rate, the determined aircraft control surface slew rate capacity, the determined aircraft control surface load rate capacity, and the determined aerodynamic stall risk.
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Specification