Twin axis steering wheel system

• US 20020089160A1
• Filed: 01/05/2001
• Published: 07/11/2002
• Est. Priority Date: 01/05/2001
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Mendis, Kolita
• Granted Patent: US 6,581,966 B2
• Time in Patent Office: Days
• US Class Current: 280/777
• CPC Class Codes: B62D 1/181 with power actuated adjustment, e.g. with position memory
• CPC Class Codes: B62D 1/195 Yieldable supports for the steering column

Abstract

A steering wheel system (10) for a steer-by-wire vehicle includes a lower subframe (52), an upper subframe (54), and a steering wheel (20). The lower subframe (52) is attached to the vehicle body (36) and moveable with respect to the vehicle body (36) by a translational sliding mechanism (38). The upper subframe (54) is attached to said lower subframe (52) through a translational sliding mechanism (34) to allow movement of the upper subframe (54) with respect to the lower subframe (52) upon application of a predetermined amount of force.

Claims

1. A steering wheel system for a steer-by-wire vehicle, comprising:

a lower subframe that is secured to the vehicle body through a translational sliding mechanism to allow said lower subframe to move with respect to the vehicle body;

an upper subframe that is secured to said lower subframe;

a steering wheel attached to said upper subframe;

a translational sliding mechanism disposed between said upper subframe and said lower subframe to allow said upper subframe to move in a horizontal direction upon application of a predetermined amount of forces.

2. The system of claim 1, further comprising:

a revolute joint connecting said upper subframe to said steering wheel to allow a driver to adjust an angle of said steering wheel.

3. The system of claim 1, wherein movement of said upper subframe with respect to said lower subframe is initiated by inertial forces.

4. The system of claim 1, wherein movement of said upper subframe with respect to said lower subframe is initiated by airbag forces.

5. The system of claim 1, wherein movement of said upper subframe with respect to said lower subframe is initiated by a pyrotechnic device.

6. The system of claim 1, wherein said steering wheel is automatically positioned based on a sensed physical feature of a driver.

7. A steering wheel system for a vehicle, comprising:

a steering wheel for controlling a plurality of vehicle wheels;

a computer in communication with said steering wheel and said vehicle wheels to effectuate steering of said vehicle wheels;

an upper subframe secured to said steering wheel;

a lower subframe secured to said upper subframe;

said upper subframe being moveable with respect to said lower subframe in the event of a front-end vehicle collision.

8. The system of claim 7, wherein said upper subframe and said lower subframe are jointly moveable with respect to a vehicle body structure in order to locate said steering wheel in an optimum position for a driver.

9. The system of claim 8, wherein said steering wheel is located in said optimum position based on a sensed physical feature of said driver.

10. The system of claim 9, wherein said sensed physical feature is a driver'"'"'s eyes.

11. The system of claim 8, wherein said lower subframe is attached to said vehicle body structure by a translational sliding mechanism.

12. The system of claim 8, wherein said upper subframe is attached to said lower subframe by a translational sliding mechanism.

13. the system of claim 7, wherein said movement of said upper subframe with respect to said lower subframe is initiated by inertial forces.

14. The system of claim 7, wherein said movement of said upper subframe with respect to said lower subframe is initiated by airbag forces.

15. The system of claim 7, wherein said movement of said upper subframe with respect to said lower subframe is initiated by a pyrotechnic device.

16. The system of claim 8, wherein said steering wheel is connected to said upper subframe by a revolute joint.

18. The system of claim 17, wherein the steering wheel system is incorporated into a steer-by-wire steering system.

19. The system of claim 17, wherein said predetermined amount of force is initiated by one or more of the following:

inertial forcers, airbag forces, and a pyrotechnic device.

20. The system of claim 17, wherein said subframe is attached to the vehicle by a translational sliding mechanism.

17. An adjustable steering wheel system for a vehicle, comprising:

an adjustable steering wheel;

said steering wheel being attached to a subframe, said subframe being moveable along an axis that is diagonal with respect to ground to adjust said steering wheel;

a sliding mechanism connecting a first portion of said subframe to a second portion of said subframe and allowing relative movement therebetween upon application of a predetermined amount of force; and

a revolute joint connecting said steering wheel to said subframe and allowing rotation of said steering wheel about an axis upon application of said predetermined amount of force.