# US 10,369,854 B2 · Device for adjusting a camber and/or toe of a vehicle wheel

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- Number: US 10,369,854 B2
- Document ID: US10369854B2
- Status: Granted
- Kind: B2
- Application number: 15/329,169
- Filed: 2015-07-02
- Published: 2017-08-10
- Granted: 2019-08-06
- Earliest claimed: 2014-07-26
- Assignees: Audi AG
- Applicants: Audi AG
- Inventors: Thomas Klinger; Vincent Pourroy-Solari
- Web page: https://patentgrep.com/patent/US10369854B2

## CPC

- B60G 7/006: {Attaching arms to sprung or unsprung part of vehicle, characterised by comprising attachment means controlled by an external actuator, e.g. a fluid or electrical motor (B62D7/146 takes precedence)}
- B60G 7/005: {Ball joints (B60G7/006 takes precedence; for steering linkage B62D7/16; ball joints per se F16C11/06)}
- B60G 17/0157: {non-fluid unit, e.g. electric motor}
- B62D 17/00: Means on vehicles for adjusting camber, castor, or toe-in
- B60G 2200/46: camber angle
- B60G 2200/462: Toe-in/out
- B60G 2202/40: Type of actuator
- B60G 2202/42: Electric actuator
- B60G 2202/442: Rotary actuator
- B60G 2204/4104: Bushings having modified rigidity in particular directions
- B60G 2206/50: Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments
- B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00})
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

A device for adjusting camber and/or toe of a vehicle wheel includes a multi-part wheel carrier having a wheel-side carrier part, an axle-side guide part, and an adjusting member, in particular two rotary parts, arranged there between, by which the carrier part is swingable about a wobble point for toe and/or camber adjustment of the vehicle wheel. A bearing point is formed radially outside of the adjusting member, on which the carrier part and the guide part are articulated to one another. The bearing point is designed in a firm manner in the wheel-axle circumferential direction for support of the carrier part which is subjected to a brake torque, and is designed in a soft manner to realize a trouble-free adjustment and, compared with the wheel-axle circumferential direction, a particularly smooth adjustment of the carrier part about the toe and/or camber angle in the vehicle transverse direction.

## Claims

### Claim 1

A device for adjusting camber and/or toe of a vehicle wheel of a motor vehicle, said device comprising:
a wheel carrier including a wheel-side carrier part which is subjected to a brake torque, an axle-side guide part, and an adjusting member arranged between the carrier part and the guide part and configured to swing the carrier part about a wobble point for toe and/or camber adjustment of the vehicle wheel; and
a bearing point formed radially outside of the adjusting member for articulation of the carrier part and the guide part to one another, said bearing point being configured such as to be firm in a wheel-axle circumferential direction for support of the carrier part, and to be soft in comparison to the wheel-axle circumferential direction to enable adjustment of the carrier part about a toe and/or camber angle in a vehicle transverse direction, wherein the bearing point is a rubber-metal bearing configured to exhibit a firm characteristic in the wheel-axle circumferential direction and a soft characteristic in the vehicle transverse direction.

### Claim 2 (depends on 1)

The device of claim 1, wherein the adjusting member includes two rotary parts, with one of the rotary parts being linked to the carrier part and the other one of the rotary parts being linked to the guide part.

### Claim 3 (depends on 2)

The device of claim 2, wherein one of the two rotary parts is a wheel-side rotary part, said carrier part being arranged radially outside of the wheel-side rotary part.

### Claim 4 (depends on 3)

The device of claim 3, further comprising a further radially inner bearing point configured to support the carrier part upon the wheel-side rotary part.

### Claim 5 (depends on 1)

The device of claim 1, wherein the carrier part supports a brake caliper that interacts with a brake disc of the vehicle wheel.

### Claim 6

A device for adjusting camber and/or toe of a vehicle wheel of a motor vehicle, said device comprising:
a wheel carrier including a wheel-side carrier part which is subjected to a brake torque, an axle-side guide part, and an adjusting member arranged between the carrier part and the guide part and configured to swing the carrier part about a wobble point for toe and/or camber adjustment of the vehicle wheel; and
a bearing point formed radially outside of the adjusting member for articulation of the carrier part and the guide part to one another, said bearing point being configured such as to be firm in a wheel-axle circumferential direction for support of the carrier part, and to be soft in comparison to the wheel-axle circumferential direction to enable adjustment of the carrier part about a toe and/or camber angle in a vehicle transverse direction, wherein the bearing point includes a bearing housing linked to the carrier part, a bearing core linked to the guide part, and elastomer material arranged between the bearing housing and the bearing core, said bearing core being telescopically adjustable over a bearing path in relation to the bearing housing so as to provide a bearing transverse softness.

### Claim 7 (depends on 6)

The device of claim 6, wherein the bearing core being telescopically adjustable between transverse stops that define the bearing path.

### Claim 8 (depends on 6)

The device of claim 6, wherein the bearing housing is formed in one piece with and of same material as the carrier part.

### Claim 9 (depends on 6)

The device of claim 6, wherein the bearing core is formed in one piece with and of same material as the guide part.

### Claim 10

A device for adjusting camber and/or toe of a vehicle wheel of a motor vehicle, said device comprising:
a wheel carrier including a wheel-side carrier part which is subjected to a brake torque, an axle-side guide part, and an adjusting member arranged between the carrier part and the guide part and configured to swing the carrier part about a wobble point for toe and/or camber adjustment of the vehicle wheel; and
a bearing point formed radially outside of the adjusting member for articulation of the carrier part and the guide part to one another, said bearing point being configured such as to be firm in a wheel-axle circumferential direction for support of the carrier part, and to be soft in comparison to the wheel-axle circumferential direction to enable adjustment of the carrier part about a toe and/or camber angle in a vehicle transverse direction, wherein the bearing point is arranged between the carrier part and the guide part and configured as a bearing joint which includes a ball joint formed in one member selected from a group consisting of the carrier part and the guide part, and a plunging joint formed in the other member of the group.

### Claim 11 (depends on 10)

The device of claim 10, wherein the ball joint is configured soft in a rotation direction and firm in the vehicle transverse direction.

### Claim 12 (depends on 10)

The device of claim 10, wherein the plunging joint is configured firm in the rotation direction and soft in the vehicle transverse direction.

### Claim 13 (depends on 10)

The device of claim 10, wherein the ball joint includes a joint ball which is swingably mounted in corresponding joint sockets of one member selected from a group consisting of the carrier part and the guide part.

### Claim 14 (depends on 10)

The device of claim 10, wherein the ball joint includes a joint ball which is extended by a joint rod that is shiftable substantially without play in a bearing channel of the plunging joint for realizing a transverse softness of the bearing point in the transverse direction.

### Claim 15 (depends on 10)

The device of claim 10, wherein the ball joint is a rubber-metal bearing.

### Claim 16 (depends on 10)

The device of claim 10, wherein the plunging joint is a rubber-metal bearing.

### Claim 17 (depends on 10)

The device of claim 10, wherein the adjusting member includes two rotary parts, with one of the rotary parts being linked to the carrier part and the other one of the rotary parts being linked to the guide part.

### Claim 18 (depends on 17)

The device of claim 17, wherein the carrier part supports a brake caliper that interacts with a brake disc of the vehicle wheel.

### Claim 19 (depends on 17)

The device of claim 17, wherein one of the two rotary parts is a wheel-side rotary part, said carrier part being arranged radially outside of the wheel-side rotary part.

### Claim 20 (depends on 19)

The device of claim 19, further comprising a further radially inner bearing point configured to support the carrier part upon the wheel-side rotary part.
