Device for adjusting camber and/or toe of a vehicle wheel

Patent metadata

Field	Value
Publication number	US-10286954-B2
Application number	US-201515329171-A
Country	US
Kind code	B2
Filing date	Jun 22, 2015
Priority date	Jul 26, 2014
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A device for adjusting camber and/or toe of a vehicle wheel of a motor vehicle, includes a wheel carrier including a wheel-side carrier part, an axle-side guide part and rotary parts arranged between the wheel-side carrier part and the axle-side guide part, the rotary parts being supported on a common bearing site for rotation relative to each other about a rotation axis, the wheel-side carrier part being rotatable about said rotation axis about an instantaneous center of rotation for toe or camber adjustment of the vehicle wheel and supporting a brake caliper interacting with a brake disc of the vehicle wheel; and a torque bridge configured as a torque transmission element which supports the wheel-side carrier part on the axle-side guide part when a braking moment acts on the wheel-side carrier part during a braking process, and which when supporting the wheel-side carrier part on the axle-side guide part generates a directed force component with which the wheel-side carrier part is impingable.

First claim

What is claimed is:

1. A device for adjusting camber and/or toe of a vehicle wheel of a motor vehicle, comprising:
a wheel carrier including a wheel-side carrier part, an axle-side guide part and rotary parts arranged between the wheel-side carrier part and the axle-side guide part to thereby define a wheel-side rotary part and an axle-side rotary part, said rotary parts being supported on a common bearing site for rotation relative to each other about a rotation axis, said wheel-side carrier part being rotatable about said rotation axis about an instantaneous center of rotation for toe or camber adjustment of the vehicle wheel and supporting a brake caliper interacting with a brake disc of the vehicle wheel; and
a torque bridge configured as a torque transmission element which supports the wheel-side carrier part on the axle-side guide part when a braking moment acts on the wheel-side carrier part during a braking process, and which when supporting the wheel-side carrier part on the axle-side guide part generates a directed force component with which the wheel-side carrier part is impingable, said torque transmission element being constructed as at least one coupling rod, which is subjectable to tensile and compressive forces.

2. The device of claim 1 , wherein the torque transmission element is constructed for articulate connection on a wheel-side attachment site on the wheel-side carrier part and on an axle-side attachment site on the axle-side guide part.

3. The device of claim 2 , wherein the wheel-side attachment site and the axle-side attachment site of the torque transmission element are positioned so that the torque transmission element is seizable between the carrier part and the guide part.

4. The device of claim 2 , wherein the wheel-side attachment site and the axle-side attachment site of the torque transmission element are spaced apart from the instantaneous center of rotation in three spatial directions.

5. The device of claim 2 , wherein the wheel-side attachment site and the axle-side attachment site of the torque transmission element when viewed in vehicle transverse direction are offset from the instantaneous center of rotation inwards by respective distances.

6. The device of claim 2 , wherein the wheel-side attachment site and the axle-side attachment site when viewed in vehicle longitudinal direction are positioned before or behind the instantaneous center of rotation by respective distances.

7. The device of claim 2 , wherein the wheel-side attachment site and the axle-side attachment site are offset from the instantaneous center of rotation (MP) in vehicle vertical direction by respective distances.

8. The device of claim 2 , wherein the torque transmission element is constructed for articulate connection on a wheel-side attachment site on the wheel-side carrier part and on an axle-side attachment site on the axle-side guide part, the wheel-side attachment site and the axle-side attachment site of the torque transmission element when viewed in vehicle transverse direction being offset from the instantaneous center of rotation inwards by respective distances.

9. The device of claim 1 , wherein during the braking process, the torque transmission element generates a counter moment to reduce a reaction moment, resulting from a total vehicle wheel moment and being conducted from the vehicle wheel to the rotary parts.

10. The device of claim 1 , wherein a wheel center of the vehicle wheel and the instantaneous center of rotation are spaced apart from each other by a lever arm.

11. The device of claim 1 , further comprising a wheel bearing integrated in the wheel-side rotary part.

12. The device of claim 11 , wherein in the wheel bearing of the wheel carrier a wheel hub section of a wheel flange which carries the vehicle wheel is rotatably supported.

13. The device of claim 12 , wherein the carrier part is arranged radially outside the wheel-side rotary part.

14. The device of claim 13 , wherein the carrier part is supported on the wheel-side rotary part via a radially inner bearing site.

15. The device of claim 12 , wherein the wheel bearing is configured demountable and includes a radially inner bearing housing and a demountable radially outer bearing housing, said demountable outer bearing housing being mounted on an outer circumference of the wheel hub or an inner circumference of the wheel-side rotary part.

16. The device of claim 15 , wherein the radially, outer bearing housing is mounted by press fit or by screwing.

17. The device of claim 12 , wherein the wheel-side rotary part directly forms the radially outer bearing housing of the wheel bearing, and wherein radially inward of the rotary part, which forms the outer bearing housing a wheel hub section of a wheel flange, which carries the vehicle wheel is rotatably supported.

18. The device of claim 1 , wherein the carrier part is supported in the wheel-side rotary part via a bearing site.

19. A device for adjusting camber and/or toe of a vehicle wheel of a motor vehicle, comprising:
a wheel carrier including a wheel-side carrier part, an axle-side guide part and rotary parts arranged between the wheel-side carrier part and the axle-side guide part to thereby define a wheel-side rotary part and an axle-side rotary part, said rotary parts being supported on a common bearing site for rotation relative to each other about a rotation axis, said wheel-side carrier part being rotatable about said rotation axis about an instantaneous center of rotation for toe or camber adjustment of the vehicle wheel and supporting a brake caliper interacting with a brake disc of the vehicle wheel; and
a torque bridge configured as a torque transmission element which supports the wheel-side carrier part on the axle-side guide part when a braking moment acts on the wheel-side carrier part during a braking process, and which when supporting the wheel-side carrier part on the axle-side guide part generates a directed force component with which the wheel-side carrier part is impingable, said torque transmission element including at least one coupling member, which is solely subjectable to tensile forces but not to compressive force.

20. The device of claim 19 , wherein the torque transmission element is constructed as a chain or a pull strap.

21. The device of claim 19 , wherein a wheel center of the vehicle wheel and the instantaneous center of rotation are spaced apart from each other by a lever arm.

22. The device of claim 19 , wherein the torque transmission element is constructed for articulate connection on a wheel-side attachment site on the wheel-side carrier part and on an axle-side attachment site on the axle-side guide part, the wheel-side attachment site and the axle-side attachment site of the torque transmission element being spaced apart from the instantaneous center of rotation in three spatial directions.

23. The device of claim 19 , further comprising a wheel bearing integrated in the wheel-side rotary part, wherein in the wheel bearing of the wheel carrier a wheel hub section of a wheel flange which carries the vehicle wheel is rotatably supported, said wheel bearing being configured demountable and including a radially inner bearing housing and a demountable radially outer bearing housing, said demountable outer bearing housing being mounted on an outer circumference of the wheel hub or an inner circumference of the wheel-side rotary part.

Assignees

• Audi Ag

Inventors

• Klinger Thomas
• Schmid Wolfgang
• Beringer Heinrich
• Glas Achim
• Voll Ulrich
• Braumandl Michael
• Pourroy-Solari Vincent

Classifications

• B60G2206/50

  Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments · CPC title

• B60Y2400/405

  Electric motors actuators · CPC title

• B60G2202/42

  Electric actuator · CPC title

• B62D17/00 Primary

  Means on vehicles for adjusting camber, castor, or toe-in · CPC title

• B60Y2300/02

  Control of vehicle driving stability · CPC title