Flywheel assemblies and vehicles including same

• US 8,640,809 B2
• Filed: 01/04/2011
• Issued: 02/04/2014
• Est. Priority Date: 01/05/2010
• Status: Expired due to Fees

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Whinnery, Joseph P. W.
• Primary Examiner(s): Boehler, Anne Marie
• Assistant Examiner(s): WILLIAMS, MAURICE L
• Application Number:
  US12/984,167
• Publication Number:
  US 20110163516A1
• Time in Patent Office: 1,127 Days
• Field of Search: 701/124, 280/268, 280/272, 280/755, 280/296, 180/219
• US Class Current: 180/219
• CPC Class Codes: B60T 8/1706 for single-track vehicles, e.g. motorcycles
• CPC Class Codes: B62D 49/08 having means for preventing overturning or tipping safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles B60K28/00
• CPC Class Codes: B62K 11/04 characterised by the engine being between front and rear wheels

Abstract

A vehicle includes a frame, an engine, a steering assembly, a steerable wheel, a brake system, a flywheel assembly, and a controller. The frame defines a roll axis. The engine is supported by the frame. The steering assembly is pivotally coupled with the frame and is pivotable about a steering axis. The steerable wheel is rotatably coupled with the steering assembly. The flywheel assembly comprises at least one inertial mass and is coupled with the frame. A controller is coupled with the flywheel assembly and is configured to facilitate rotation of said at least one inertial mass.

Claims

1. A vehicle comprising:

a frame defining a roll axis;

an engine supported by the frame;

a steering assembly pivotally coupled with the frame and pivotable about a steering axis;

a front wheel rotatably coupled with the steering assembly;

a rear wheel rotatably coupled with the frame;

a brake system associated with at least one of the front wheel and the rear wheel and configured to facilitate selective braking of at least one of the front wheel and the rear wheel;

a flywheel assembly comprising at least one inertial mass and being coupled with the frame, said at least one inertial mass being rotatable about a spin axis, wherein rotation of each of said at least one inertial mass produces an overall spin vector that extends coaxially with the spin axis; and

a controller coupled with the flywheel assembly and configured to facilitate selective rotation of said at least one inertial mass in order to produce the overall spin vector in anticipation of one of vehicular acceleration and vehicular deceleration, in a direction that facilitates exertion of a counter-pitching moment on the vehicle in opposition of a pitching moment imparted on the vehicle as a result of said one of vehicular acceleration and vehicular deceleration;

wherein the flywheel assembly is attached to a front of the frame at a position between the frame and the front wheel, said at least one inertial mass arranged such that the spin axis lies in a plane, and the plane intersects the roll axis and is declined toward a front of the vehicle.

2. The vehicle of claim 1 wherein the vehicular deceleration is facilitated by a braking operation.

3. The vehicle of claim 1 wherein the overall spin vector comprises one of a negative overall spin vector and a positive overall spin vector.

4. The vehicle of claim 3 wherein said at least one inertial mass comprises only one inertial mass that is rotatable in one of a clockwise direction and a counterclockwise direction to produce the negative overall spin vector and the positive overall spin vector, respectively.

5. The vehicle of claim 3 wherein the controller is configured to facilitate selective rotation of each of said at least one inertial mass to produce the positive overall spin vector and the negative overall spin vector in anticipation of an approaching leftward turn and an approaching rightward turn, respectively.

6. The vehicle of claim 3 wherein the controller is configured to facilitate selective rotation of each of said at least one inertial mass to produce the negative overall spin vector and the positive overall spin vector in anticipation of exiting a leftward turn and a rightward turn, respectively.

7. The vehicle of claim 3

the controller is further configured to control rotation of said at least one inertial mass in anticipation of an approaching turn;

and

the controller is further configured to produce one of the positive overall spin vector and the negative overall spin vector based upon the direction of the approaching turn.

8. The vehicle of claim 7 wherein the controller is configured to facilitate selective rotation of each of said at least one inertial mass to produce the positive overall spin vector and the negative overall spin vector in anticipation of one of an approaching leftward turn and an approaching rightward turn, respectively.

9. The vehicle of claim 8 wherein the controller is configured to produce the negative overall spin vector and the positive overall spin vector in anticipation of exiting the rightward turn and the leftward turn, respectively.

10. The vehicle of claim 8 wherein the controller is configured to control an angular velocity of each of said at least one inertial mass according to the severity of one of the approaching leftward turn and the approaching rightward turn.

11. The vehicle of claim 8 further comprising an electronic steering damper coupled with the frame and the steering assembly, the electronic steering damper being in communication with the controller, wherein the controller is configured to operate the electronic steering damper in anticipation of one of the approaching leftward turn and the approaching rightward turn.

12. The vehicle of claim 11 wherein the controller is configured to increase a dampening force applied by the electronic steering damper in anticipation of one of the approaching leftward turn and the approaching rightward turn.

13. The vehicle of claim 1 wherein the controller is configured to facilitate rotation of said at least one inertial mass to produce a zero overall spin vector.

14. The vehicle of claim 1 wherein the controller is configured to control a magnitude of the overall spin vector by controlling an angular velocity of each of said at least one inertial mass.

15. The vehicle of claim 14 wherein the angular velocity of each of said at least one inertial mass is controlled according to a severity of one of an approaching leftward turn and an approaching rightward turn.

16. The vehicle of claim 1 further comprising a steering damper coupled with the frame and the steering assembly, the steering damper being configured to selectively dampen pivoting of the steering assembly.

17. The vehicle of claim 16 wherein the steering damper comprises an electronic steering damper in communication with the controller and wherein the controller is configured to operate the steering damper in conjunction with rotation of said at least one inertial mass.

18. The vehicle of claim 1 comprising a motorcycle.

19. A method for operating a motorcycle, the motorcycle comprising a frame, a front wheel, a braking system and a flywheel assembly, the flywheel assembly having at least one inertial mass that is rotatable about a spin axis, the method comprising:

providing a flywheel assembly along a front of the frame at a position between the frame and the front wheel, said at least one inertial mass being arranged such that the spin axis lies in a plane, and the plane intersects a roll axis of the motorcycle and is declined toward a front of the motorcycle;

rotating each of said at least one inertial mass to produce an overall spin vector;

controlling each of said at least one inertial mass to produce the overall spin vector in anticipation of one of vehicular deceleration and vehicular acceleration, respectively; and

controlling a direction of the spin vector to facilitate exertion of a counter-pitching moment on the vehicle in opposition of a pitching moment imparted on the vehicle as a result of said one of vehicular acceleration and vehicular deceleration.

20. The method of claim 19 further comprising operating an electronic steering damper in conjunction with rotation of said at least one inertial mass.

21. The method of claim 19 wherein the overall spin vector comprises one of a negative overall spin vector and a positive overall spin vector, the method further comprising

controlling each of said at least one inertial mass to produce the positive overall spin vector and the negative overall spin vector in anticipation of an approaching leftward turn and an approaching rightward turn, respectively, and based upon a direction of the approaching turn.

22. The method of claim 21 further comprising controlling an angular velocity of each of said at least one inertial mass in anticipation of one of the approaching leftward turn and the approaching rightward turn.