IP Library › Granted Patent US 12,304,617
Granted Patent B2
US 12,304,617 · App. 18/421,169 · Granted May 20, 2025

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 12,304,617
App. No.
18/421,169
Granted
May 20, 2025
Kind
B2
Abstract

A forward velocity associated with an aircraft is received. The aircraft includes a multicopter with a plurality of rotors which rotate in a substantially horizontal plane. A pitch offset is determined based at least in part on the forward velocity, where the pitch offset changes monotonically with the forward velocity. A desired pitch is determined based at least in part on the pitch offset and a pitch angle 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 pitch.

Claims (14)

1. A method, comprising:

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

determining a pitch offset based at least in part on the forward velocity, wherein the pitch offset changes monotonically with the forward velocity;

determining a desired pitch based at least in part on the pitch offset and a pitch angle 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 pitch.

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

3. A system, comprising:

a flight controller that:

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

determines a pitch offset based at least in part on the forward velocity, wherein the pitch offset changes monotonically with the forward velocity;

determines a desired pitch based at least in part on the pitch offset and a pitch angle 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 pitch; and

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

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

Continuity (4)
Continuation 17343384 · Jun 9, 2021
Continuation 16165959 · Oct 19, 2018
Continuation 15693804 · Sep 1, 2017
Related Publication 20240166336A1 · May 23, 2024
References Cited (52)
US 3472086A · Nozomu · 1969 [cited by applicant]
US 3688175A · Rauschelbach · 1972 [cited by applicant]
US 4154415A · Harris · 1979 [cited by applicant]
US 4778133A · Sakurai · 1988 [cited by applicant]
US 5002241A · Tizac · 1991 [cited by applicant]
US 5125602A · Vauvelle · 1992 [cited by applicant]
US 5472156A · Bivens, III · 1995 [cited by applicant]
US 5503040A · Wright · 1996 [cited by applicant]
US 5971325A · Gold · 1999 [cited by applicant]
US 8258917B2 · Cai · 2012 [cited by applicant]
US 8264458B2 · Cooper · 2012 [cited by applicant]
US 8844880B1 · Corliss · 2014 [cited by applicant]
US 8958928B2 · Seydoux · 2015 [cited by applicant]
US 9126677B1 · Curtis · 2015 [cited by applicant]
US 9360868B2 · Erhart · 2016 [cited by applicant]
US 9898033B1 · Long · 2018 [cited by applicant]
US 9908614B2 · Cherepinsky · 2018 [cited by applicant]
US 10011348B1 · Wong · 2018 [cited by applicant]
US 10144504B1 · Selwa · 2018 [cited by applicant]
US 10551837B1 · Cutler · 2020 [cited by applicant]
US 10983534B2 · English · 2021 [cited by applicant]
US 11377200B2 · Gibson · 2022 [cited by applicant]
US 11667375B2 · De Freitas · 2023 [cited by applicant]
US 20020166267A1 · McGugan · 2002 [cited by applicant]
US 20060137931A1 · Berg · 2006 [cited by applicant]
US 20090187292A1 · Hreha · 2009 [cited by applicant]
US 20090302170A1 · Rozovski · 2009 [cited by applicant]
US 20120091260A1 · Callou · 2012 [cited by applicant]
US 20130306395A1 · Frazier · 2013 [cited by applicant]
US 20140008496A1 · Ye · 2014 [cited by applicant]
US 20150051755A1 · Erhart · 2015 [cited by applicant]
US 20150314857A1 · Cherepinsky · 2015 [cited by applicant]
US 20150367937A1 · Greenfield et al. · 2015 [cited by applicant]
US 20150375849A1 · Salesse-Lavergne · 2015 [cited by applicant]
US 20150375851A1 · Salesse-Lavergne · 2015 [cited by applicant]
US 20160031559A1 · Zang · 2016 [cited by applicant]
US 20170052541A1 · Hu · 2017 [cited by applicant]
US 20170349277A1 · Erhart · 2017 [cited by applicant]
US 20190112030A1 · Miller · 2019 [cited by applicant]
US 20190161170A1 · Taylor · 2019 [cited by applicant]
US 20200333805A1 · English · 2020 [cited by applicant]
CN 102692225 · 2012 [cited by applicant]
CN 103562064 · 2014 [cited by applicant]
CN 104281149 · 2015 [cited by applicant]
CN 104898429 · 2015 [cited by applicant]
CN 105944386 · 2016 [cited by applicant]
CN 205931245 · 2017 [cited by applicant]
EP 296951 · 1988 [cited by applicant]
EP 465352 · 1992 [cited by applicant]
WO 2016048713 · 2016 [cited by applicant]
Author Unknown, “HF series: Hall effect joysticks”, APEM, Jan. 22, 2016. [cited by applicant]
Author Unknown, “TW series: Hall effect thumbwheels”, APEM, Feb. 16, 2016. [cited by applicant]