IP Library Granted Patent US 10,620,640
Granted Patent B2
US 10,620,640 · App. 16/039,195 · Granted Apr 14, 2020

Power surge landing system

Inventors: Damon Vander Lind (East Palo Alto, CA); Gregory Mainland Horn (Mountain View, CA); Thomas Van Alsenoy (San Francisco, CA)
Assignee: Kitty Hawk Corporation
G05D1/0676B64C29/0033B64D31/06B64D45/04G05D1/0858
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Quick Facts
Patent No.
US 10,620,640
App. No.
16/039,195
Granted
Apr 14, 2020
Kind
B2
Abstract

An aircraft landing system is disclosed. In various embodiments, an aircraft landing system as disclosed herein includes a processor that determines to start a final stage of descent for the aircraft. The processor determines a set of commands for actuators of the aircraft, based on the determination to start the final stage of descent, to flare the aircraft while wings of the aircraft are substantially in a forward flight position followed by transitioning to a vertical tilt position and completing the landing in substantially vertical flight. The commands are provided to the actuators of the aircraft.

Claims (35)

1. An aircraft landing system, comprising:

a processor configured to:

determine to start a final stage of descent for the aircraft;

determine a set of commands for actuators of the aircraft, based on the determination to start the final stage of descent, to flare the aircraft while at least a plurality of rotors comprising the actuators of the aircraft are substantially in a forward flight position, followed by transitioning to a vertical flight position of the plurality of rotors and completing the landing in substantially vertical flight; and

provide the set of commands to the actuators.

2. The system of claim 1 , wherein the set of commands are determined based at least in part on a net loss of lift.

3. The system of claim 1 , wherein the processor automatically determines to start a final stage of descent for the aircraft in the event the aircraft is substantially close to ground.

4. The system of claim 1 , wherein the processor is configured to automatically determine to start an initial stage of descent for the aircraft.

5. The system of claim 4 , wherein the initial stage of descent for the aircraft comprises a low power stage and the final stage of descent for the aircraft comprises a high power stage.

6. The system of claim 4 , wherein the final stage of descent for the aircraft occurs in a shorter amount of time than the initial stage of descent.

7. The system of claim 4 , comprising an interface configured to receive sensor data, wherein a determination to start a stage of descent for the aircraft is based at least in part on the sensor data.

8. The system of claim 4 , wherein a determination to start a stage of descent for the aircraft is determined based at least in part on manual controls.

9. The system of claim 7 , wherein the sensor data is collected using radar, lidar, or a camera.

10. The system of claim 4 , wherein the initial stage of descent comprises diving.

11. The system of claim 4 , wherein the aircraft is in a cruise position in the initial stage of descent.

12. The system of claim 1 , wherein the aircraft comprises one or more wings that are able to tilt during flight.

13. The system of claim 1 , wherein the aircraft comprises two parallel wings that each comprise two rotors positioned on leading edges of the wings.

14. The system of claim 13 , wherein all rotors are at maximum throttle in the final stage of descent.

15. The system of claim 1 , wherein throttle is set to zero in the event the aircraft touches ground.

16. A method for landing an aircraft, comprising:

determining to start a final stage of descent for the aircraft;

determining a set of commands for actuators of the aircraft, based on the determination to start the final stage of descent, to flare the aircraft while at least a plurality of rotors comprising the actuators of the aircraft are substantially in a forward flight position, followed by transitioning to a vertical flight position of the plurality of rotors and completing the landing in substantially vertical flight; and

providing the set of commands to the actuators.

17. The method of claim 16 , wherein the set of commands are determined based at least in part on a net loss of lift.

18. The method of claim 16 , further comprising determining to start a final stage of descent for the aircraft in the event the aircraft is substantially close to ground.

19. The method of claim 16 , further comprising determining to start an initial stage of descent for the aircraft.

20. The method of claim 19 , wherein the initial stage of descent for the aircraft comprises a low power stage and the final stage of descent for the aircraft comprises a high power stage.

21. The method of claim 19 , wherein the final stage of descent for the aircraft occurs in a shorter amount of time than the initial stage of descent.

22. A computer program product for landing an aircraft, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:

determining to start a final stage of descent for the aircraft;

determining a set of commands for actuators of the aircraft, based on the determination to start the final stage of descent, to flare the aircraft while at least a plurality of rotors comprising the actuators of the aircraft are substantially in a forward flight position, followed by transitioning to a vertical flight position of the plurality of rotors and completing the landing in substantially vertical flight; and

providing the set of commands to the actuators.

23. The computer program product of claim 22 , wherein the set of commands are determined based at least in part on a net loss of lift.

24. The computer program product of claim 22 , further comprising computer instructions for determining to start a final stage of descent for the aircraft in the event the aircraft is substantially close to ground.

25. The computer program product of claim 22 , further comprising computer instructions for determining to start an initial stage of descent for the aircraft.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded May 22, 2023
From: ONE AERO, LLC
To: KITTY HAWK CORPORATION
Reel/Frame 063713/0367 →
SECURITY INTEREST Recorded Mar 25, 2022
From: KITTY HAWK CORPORATION
To: ONE AERO, LLC
Reel/Frame 059503/0382 →
SECURITY INTEREST Recorded Nov 4, 2021
From: KITTY HAWK CORPORATION
To: ONE AERO, LLC
Reel/Frame 058029/0610 →
SECURITY INTEREST Recorded Oct 22, 2020
From: KITTY HAWK CORPORATION
To: ONE AERO, LLC
Reel/Frame 054206/0714 →
SECURITY INTEREST Recorded Dec 7, 2018
From: KITTY HAWK CORPORATION
To: ONE AERO, LLC
Reel/Frame 047739/0947 →
SECURITY INTEREST Recorded Oct 25, 2018
From: KITTY HAWK CORPORATION
To: ONE AERO, LLC
Reel/Frame 047308/0927 →
Continuity (2)
Continuation 15447029 · Mar 1, 2017
Related Publication 20180321690A1 · Nov 8, 2018