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US 9,317,041 B2Granted
Rotor moment feedback for stability augmentation
AssigneeSikorsky Aircraft Corporation
InventorsErez Eller, Ole Wulff
Life of this patent
Estimating the term…
Abstract
Embodiments are directed to obtaining at least one measurement of blade bending associated with at least one blade of at least one rotor of an aircraft, processing, by a device comprising a processor, the at least one measurement to obtain moment data, obtaining data from an inertial measurement unit (IMU), and processing, by the device, the moment data and the data from the IMU to generate a command configured to stabilize the aircraft.
Claims9
A method comprising:
- obtaining at least one measurement of blade bending from a blade mounted sensor associated with at least one blade of at least one rotor of an aircraft;
- processing, by a device comprising a processor, the at least one measurement to obtain moment data;
- obtaining data from an inertial measurement unit (IMU), wherein the data obtained from the IMU pertains to at least one of a pitch of the aircraft and an angular rate;
- and
- processing, by the device, the moment data and the data from the IMU to generate a command configured to stabilize the aircraft, wherein the command is based on a reference input, and wherein the reference input is based on at least one input provided by a pilot of the aircraft.
2 more elements
An apparatus for use in a rotorcraft having at least one rotor with blades, the apparatus comprising:
- at least one processor;
- and
- memory having instructions stored thereon that, when executed by the at least one processor, cause the apparatus to:
- obtain blade bending measurements through at least one sensor mounted to at least one of the blades;
- process the measurements to obtain moment data;
- obtain data from an inertial measurement unit (IMU), wherein the data obtained from the IMU pertains to at least one of a pitch of the rotorcraft and an angular rate;
- and
- process the moment data and the data from the IMU to generate a command configured to stabilize the rotorcraft, wherein the command is based on a reference input, and wherein the reference input is based on at least one input provided by a pilot of the rotorcraft.
5 more elements
Dependencies are inferred from the claim text.