Wheel carrier for a two-track motor vehicle

Patent metadata

Field	Value
Publication number	US-10351173-B2
Application number	US-201515329141-A
Country	US
Kind code	B2
Filing date	Jul 8, 2015
Priority date	Jul 26, 2014
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A wheel carrier for a two-track motor vehicle including a wheel-side carrier part, which carries a vehicle wheel; an axle-side guide part; axle-side rotary parts arranged between the wheel-side carrier part and the axle-side guide part and supported on a common bearing site for rotation relative to each other about a rotation axis by respective rotation angles, wherein the carrier part is pivotable about the rotation axis about a pivot point for toe and/or camber adjustment of the vehicle wheel by rotation of at least one of the rotary parts by the respective rotation angle into a rotary position, which correlates with a toe and/or camber angle of the vehicle wheel, wherein the toe and/or camber angle being arbitrarily adjustable within a toe and/or camber angular range. The wheel carrier further includes at least one movement stop adapted for limiting the toe and/or camber angular range of the vehicle wheel.

First claim

The invention claimed is:

1. A wheel carrier for a motor vehicle, comprising:
a wheel-side carrier part which carries a vehicle wheel;
an axle-side guide part;
rotary parts arranged between the wheel-side carrier part and the axle-side guide part,
wherein the rotary parts are supported on a common bearing site for rotation relative to each other about a rotation axis by respective rotation angles in a same direction or opposite directions of rotation,
said carrier part being pivotable about the rotation axis about a pivot point for toe and/or camber adjustment of the vehicle wheel by rotation of at least one of the rotary parts by the respective rotation angle into a rotary position, which correlates with a toe and/or camber angle of the vehicle wheel, said toe and/or camber angle being arbitrarily adjustable within a toe and/or camber angular range; and
at least one movement stop arrange to act between the carrier part and the guide part or between the rotary parts for limiting the toe and/or camber angular range of the vehicle wheel.

2. The wheel carrier of claim 1 , wherein the wheel-side carrier part and the axle-side guide part are rotatively fixed, and wherein the at least one movement stop is constructed as a rotary angular stop, which limits a rotary adjustment between the rotatively fixed wheel-side carrier part and a wheel-side one of the rotary parts and/or between the rotatively fixed axle-side guide part and an axle-side one of the rotary parts.

3. The wheel carrier of claim 2 , further comprising a further movement stop, with at least one of the further movement stop and the rotary angular stop having mechanical stop elements which are formed on at least one of the wheel side carrier part, the rotary parts and the axle-side guide part.

4. The wheel carrier of claim 1 , wherein the movement stop limits a rotary adjustment of an associated one of the rotary parts to an angular segment smaller than 360°.

5. The wheel carrier of claim 1 , wherein the movement stop limits a rotary adjustment of an associated one of the rotary parts to an angular segment smaller than 180°.

6. The wheel carrier of claim 1 , further comprising plural of said at least one movement stop which interact with respective confronting ends of toothings of the rotary parts.

7. The wheel carrier of claim 1 , wherein the at least one movement stop during a toe and/or camber adjustment of the vehicle wheel limits a displacement path of the carrier part in a direction towards the guide part.

8. The wheel carrier of claim 1 , wherein the at least one movement stop has pressure elements, which are formed on the carrier part and/or on the guide part, and which are engageable in pressure contact with each other during a toe and/or camber adjustment of the vehicle wheel.

9. The wheel carrier of claim 1 , wherein the at least one movement stop has tappet elements, which are interposed between the rotary parts.

10. The wheel carrier of claim 1 , wherein the at least one movement stop during a rotary adjustment of at least one of the rotary parts generates a movement coupling in which the rotary parts are adjustable over an adjustment path in a same direction and with identical adjustment speeds.

11. The wheel carrier of claim 1 , wherein the at least one movement stop is configured as an electronic movement stop.

12. The wheel carrier of claim 1 , wherein the at least one movement stop is configured as an end position switch.

13. The wheel carrier of claim 1 , further comprising an electronic controller having an analysis unit and adapted for implementing the toe and/or camber adjustment and for determining, as a function of driving operating parameters of the vehicle, a value pair defined by the rotation angle for one of the rotary parts and the rotation angle for the other one of the rotary parts, with a drive unit of the rotary parts being controllable unit based on said value pair.

14. The wheel carrier of claim 13 , wherein the at least one movement stop is taken into account in the electronic controller.

15. The wheel carrier of claim 1 , wherein a wheel-side one of the rotary parts is ratably connected with the wheel-side carrier part at a bearing site and defines a first rotary part axis and an axle-side one of the rotary parts is rotatably connected with the guide part at another bearing site and defines a second rotary part axis.

16. The wheel carrier of claim 15 , wherein in a zero position the first and second rotary part axes are coaxial relative to each other so as to form a singularity and wherein the toe and camber angles that correlate with the zero position are situated outside of the toe and/or camber range of the vehicle wheel defined by the at least one movement stop.

17. The wheel carrier of claim 15 , wherein in a zero position the first and second rotary part axes are coaxial relative to each other so as to form a singularity, with the toe and/or camber angles that correlate with the zero position being situated outside of the toe and/or camber angular range of the vehicle wheel defined by the movement stop, or wherein for avoiding the singularity a position of the first and second rotary part axes is selected so that the first and second rotary part axes are not arranged coaxial to each other at any operating time point.

18. The wheel carrier of claim 1 , wherein at least one of the rotary parts has an outer toothing, which is a part of a gear stage which is drivingly connected with a rotary part drive unit, with the outer toothing extending partially about the associated rotary part over an angular segment.

19. The wheel carrier of claim 1 , wherein the at least one movement stop is configured for reducing load peaks with correspondingly soft characteristic curves, and wherein the characteristic curves can have different digressive, progressive or linear courses.

20. The wheel carrier of claim 1 , wherein the at least one movement stop forms an input for teaching a rotary angle sensor system which is adapted for detecting an angular position of the rotary parts, and wherein upon contact of the at least one movement stop the sensor system recognizes a respective absolute position of the rotary parts.

Assignees

• Audi Ag

Inventors

• Schmid Wolfgang
• Klinger Thomas
• Voll Ulrich
• Braumandl Michael
• Beringer Heinrich
• Glas Achim

Classifications

• B60G2204/45

  Stops limiting travel · CPC title

• B60G2202/42

  Electric actuator · CPC title

• B60G2202/40

  Type of actuator · CPC title

• B60G2200/46

  camber angle · CPC title

• B60G2202/442

  Rotary actuator · CPC title