IP Library Granted Patent US 8,919,788
Granted Patent B2
US 8,919,788 · App. 13/974,942 · Granted Dec 30, 2014

Gyroscopic system in vehicle suspension

Inventors: Daniel Kee Young Kim (Vancouver, WA); Eric Miller (Torrance, CA)
Assignee: Lit Motors Corporation
B60G17/0162B60G17/01908B60G21/08B60G2400/0511
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Quick Facts
Patent No.
US 8,919,788
App. No.
13/974,942
Granted
Dec 30, 2014
Kind
B2
Abstract

Embodiments of the invention describe methods, apparatuses, and systems for enhanced vehicle stabilization solutions. Embodiments of the invention may receive sensor information from at least one sensor coupled to a vehicle having two or more wheels, the at least one sensor coupled to at least one of a wheel, a suspension component, or a frame of the vehicle. A tilt angle of the vehicle is determined from the received sensor information, the tilt angle comprising an offset angle from a reference plane for the vehicle. A controller transmits a command to one or more control moment gyroscopes (CMGs) coupled to the frame of the vehicle to produce a total angular moment based, at least in part, on the tilt angle of the vehicle.

Claims (36)

1. A vehicle comprising:

a frame;

three wheels, including at least one front wheel and at least one rear wheel, wherein the three wheels includes at least one steerable wheel;

at least one suspension component;

at least one sensor coupled to at least one of the three wheels, the at least one suspension component, or the frame;

one or more control moment gyroscopes (CMGs) coupled to the frame; and

a CMG controller to:

receive sensor information from the at least one sensor;

determine a tilt angle of the vehicle from the sensor information, the tilt angle comprising an offset angle from a reference plane for the vehicle; and

transmit a command to one or more CMGs coupled to the frame of the vehicle to produce a total angular moment based, at least in part, on the tilt angle of the vehicle.

2. The vehicle of claim 1 , wherein the one or more CMGs optionally receive regenerated energy received from a vehicle braking system or an electrical generator.

3. The vehicle of claim 1 , wherein the reference plane comprises a level stasis for the vehicle.

4. The vehicle of claim 1 , wherein each of the one or more CMGs is actuated on one or more axes.

5. The vehicle of claim 1 , wherein the total angular momentum of the one or more CMGs is further based on an acceleration of the vehicle.

6. The vehicle of claim 1 , wherein the total angular momentum of the one or more CMGs is further based on a position of the at least one steerable wheel of the vehicle.

7. The vehicle of claim 1 , wherein the at least one sensor comprises one or more of an inertial measurement unit, a height sensor, an angle sensor, a length sensor, or a distance sensor.

8. The vehicle of claim 1 , wherein the one or more CMGs comprise a plurality of CMGs coupled with at least one of the three wheels.

9. A method comprising:

receiving sensor information from at least one sensor coupled to a vehicle having three wheels, including at least one front wheel and at least one rear wheel, the at least one sensor coupled to at least one of the three wheels, a suspension component, or a frame of the vehicle;

determining a tilt angle of the vehicle from the received sensor information, the tilt angle comprising an offset angle from a reference plane for the vehicle; and

transmitting a command to one or more control moment gyroscopes (CMGs) coupled to the frame of the vehicle to produce a total angular moment based, at least in part, on the tilt angle of the vehicle.

10. The method of claim 9 , further comprising:

routing regenerated energy to the one or more CMGs from at least one of a vehicle braking system or a vehicle drive motor.

11. The method of claim 9 , wherein the reference plane comprises a level stasis for the vehicle.

12. The method of claim 9 , wherein each of the one or more CMGs is actuated on one or more axes.

13. The method of claim 9 , wherein the total angular momentum of the one or more CMGs is further based on an acceleration of the vehicle.

14. The method of claim 9 , wherein the total angular momentum of the one or more CMGs is further based on a position of one or more steerable wheels of the vehicle.

15. The method of claim 9 , wherein the at least one sensor comprises one or more of an inertial measurement unit, a height sensor, an angle sensor, a length sensor, or a distance sensor.

16. The method of claim 9 , wherein the one or more CMGs comprise a plurality of CMGs coupled with at least one of the three wheels.

17. An apparatus comprising:

a data bus to receive sensor information from one or more sensors coupled to a vehicle having three wheels, including at least one front wheel and at least one rear wheel, the one or more sensors coupled at least one of the three wheels, a suspension component, or a frame of the vehicle; and

logic to:

determine from the sensor information a tilt angle of the vehicle, the tilt angle comprising an offset angle from a reference plane for the vehicle; and

transmit a command to one or more control moment gyroscopes (CMGs) coupled to the frame of the vehicle to produce a total angular moment based, at least in part, on the tilt angle of the vehicle.

18. The apparatus of claim 17 , wherein the total angular momentum of the one or more CMGs is further based on at least one of an acceleration of the vehicle, or on a position of one or more steerable wheels of the vehicle.

19. The apparatus of claim 17 , wherein the one or more sensors comprises one or more of an inertial measurement unit, a height sensor, an angle sensor, a length sensor, and/or a distance sensor.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Mar 6, 2020
From: KIM, DANIEL S.; KIM, HOOJA
To: LIT MOTORS INC.
Reel/Frame 052038/0813 →
SECURITY INTEREST Recorded Jan 10, 2020
From: LIT MOTORS CORPORATION
To: KIM, DANIEL S.; KIM, HOOJA
Reel/Frame 051481/0772 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2014
From: KIM, DANIEL KEE YOUNG; MILLER, ERIC
To: LIT MOTORS CORPORATION
Reel/Frame 032918/0183 →
Continuity (2)
Provisional Application 61693561 · Aug 27, 2012
Related Publication 20140054867A1 · Feb 27, 2014