IP Library › Granted Patent US 12,735,172
Granted Patent B2
US 12,735,172 · App. 19/184,638 · Granted Sep 15, 2026

Decoupled hand controls for aircraft with vertical takeoff and landing and forward flight capabilities

Inventors: Alexander David Selwa (San Francisco, CA); Todd Reichert (Mountain View, CA); Mark Johnson Cutler (Sunnyvale, CA)
Assignee: Kitty Hawk Corporation
B64C13/0421B64C27/08B64C27/20G05D1/0816G05D1/0858G05D1/102G05D1/495G05D1/652G05D1/654G05G9/047
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Quick Facts
Patent No.
US 12,735,172
App. No.
19/184,638
Granted
Sep 15, 2026
Kind
B2
Abstract

A forward velocity and a roll angle associated with an aircraft is received, where the aircraft includes a multicopter with a plurality of rotors which rotate in a substantially horizontal plane. A yaw rate offset is determined based at least in part on the forward velocity and the roll angle, where the yaw rate offset increases over a first forward velocity range and decreases over a second forward velocity range and the yaw rate offset changes monotonically with the roll angle. A desired yaw rate is determined based at least in part on the yaw rate offset and a yaw rate specified via a hand control. A plurality of control signals for the plurality of rotors is determined based at least in part on the desired yaw rate.

Claims (14)

1 . A system, comprising:

a flight controller that:

receives a forward velocity and a roll angle associated with an aircraft, wherein the aircraft includes a multicopter with a plurality of rotors which rotate in a substantially horizontal plane;

determines a yaw rate offset based at least in part on the forward velocity and the roll angle, wherein the yaw rate offset increases over a first forward velocity range and decreases over a second forward velocity range and the yaw rate offset changes monotonically with the roll angle;

determines a desired yaw rate based at least in part on the yaw rate offset and a yaw rate specified via a hand control; and

determines a plurality of control signals for the plurality of rotors based at least in part on the desired yaw rate; and

the plurality of rotors that are controlled using the plurality of control signals.

2 . The system recited in claim 1 , wherein determining the desired yaw rate includes summing the yaw rate offset and the yaw rate specified via the hand control, wherein the yaw rate specified via the hand control is non-zero.

3 . A method, comprising:

receiving a forward velocity and a roll angle associated with an aircraft, wherein the aircraft includes a multicopter with a plurality of rotors which rotate in a substantially horizontal plane;

determining a yaw rate offset based at least in part on the forward velocity and the roll angle, wherein the yaw rate offset increases over a first forward velocity range and decreases over a second forward velocity range and the yaw rate offset changes monotonically with the roll angle;

determining a desired yaw rate based at least in part on the yaw rate offset and a yaw rate specified via a hand control; and

determining a plurality of control signals for the plurality of rotors based at least in part on the desired yaw rate.

4 . The method recited in claim 3 , wherein determining the desired yaw rate includes summing the yaw rate offset and the yaw rate specified via the hand control, wherein the yaw rate specified via the hand control is non-zero.

Continuity (5)
Continuation 18421169 · Jan 24, 2024
Continuation 17343384 · Jun 9, 2021
Continuation 16165959 · Oct 19, 2018
Continuation 15693804 · Sep 1, 2017
Related Publication 20250340288A1 · Nov 6, 2025
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