Wheel suspension

Patent metadata

Field	Value
Publication number	US-11142032-B2
Application number	US-201716462293-A
Country	US
Kind code	B2
Filing date	Oct 16, 2017
Priority date	Nov 22, 2016
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A wheel suspension (1), for a motor vehicle, having a hub carrier (2) for holding a wheel (3), a wheel-guiding link (4) for an articulated connection of the hub carrier (2) to a body (6), and a steering rod (8) for steering the wheel (3). The hub carrier (2) and the wheel-guiding link (4), for steering the wheel (3), are pivotally connected to each other such that the hub carrier (2) can be swiveled about a steering axis relative to the wheel-guiding link (4). The hub carrier (2) is directly connected to the wheel-guiding link (4), in a first connection area (20), and the hub carrier (2) is indirectly coupled to the wheel-guiding link (4), in a second connecting area (21), via an integral link (5) connected to a chassis element (12).

First claim

The invention claimed is:

1. A wheel suspension for a motor vehicle, the wheel suspension comprising:
a hub carrier for holding a wheel;
a wheel-guiding link having a body-side that is pivotally connected to a body of the vehicle, and the wheel-guiding link having first and second receptacles that are part of first and second connection areas, respectively, and the wheel-guiding link articulately connecting the hub carrier to the body;
a steering means being pivotally connected to the hub carrier for steering the wheel;
an elongate chassis element having a body-side end that is connected to the body;
an integral link is pivotally connected to the chassis element and extends in a substantially vertical direction of the vehicle in an unsteered position of the wheel;
the hub carrier and the wheel-guiding link, for steering the wheel, being pivotally connected to each other such that the hub carrier is pivotable about a steering axis relative to the wheel-guiding link;
the hub carrier being directly connected to the first receptacle of the wheel-guiding link in the first connection area; and
the hub carrier being indirectly coupled, via the integral link and the chassis element, to the second receptacle of the wheel-guiding link in the second connection area.

2. The wheel suspension according to claim 1 , wherein a first end of the integral link is connected to the chassis element by a first joint, and either:
an opposite end of the chassis element, that is opposite the body-side end, is pivotally connected to the second receptacle of the wheel-guiding link and a second end of the integral link is connected to the hub carrier by a second articulation, or
the opposite end of the chassis element is pivotally connected to the hub carrier and the second end of the integral link is connected to the second receptacle of the wheel-guiding link by a second joint.

3. The wheel suspension according to claim 1 , wherein the chassis element is either a damper or a spring-damper system that is connected to the body, at the body-side end thereof, for damping vibration of the wheel.

4. The wheel suspension according to claim 1 , wherein a vertically lower end of the integral link is pivotally connected to a lower end of the chassis element that is opposite the body-side end by a first joint, which is spaced further apart from a center of the vehicle than a bearing that pivotally connects the lower end of the chassis element to the second receptacle of the wheel-guiding link.

5. The wheel suspension according to claim 1 , wherein a lower end of the elongate chassis element, that is opposite the body-side end, is pivotally connected to the second receptacle of the wheel-guiding link, and the chassis element extends substantially in the vertical direction of the vehicle.

6. The wheel suspension according to claim 1 , wherein the first and the second connection areas are spaced apart from one another in a longitudinal direction of the vehicle.

7. The wheel suspension according to claim 6 , wherein, in the longitudinal direction of the vehicle, one of the first and the second connection areas is located in front of a wheel center and the other one of the first and the second connection areas is located behind the wheel center.

8. The wheel suspension according to claim 1 , wherein an upper end of the integral link is pivotally connected, via an upper second joint, to a link of the hub carrier that projects rearward relative to a longitudinal direction of the vehicle, and a lower end of the integral link is pivotally connected, via a lower first joint, to a lower end of the chassis element.

9. The wheel suspension according to claim 1 , wherein, the body-side of the wheel-guiding link is pivotally attached to the body by a front bearing and a rear bearing such that the wheel-guiding link pivots relative to the body about an axis of rotation that is inclined in relation to a longitudinal axis of the vehicle.

10. The wheel suspension according to claim 1 , wherein the first receptacle has a hub carrier bearing and the second receptacle has a damper bearing.

11. The wheel suspension according to claim 1 , wherein the wheel-guiding link is arranged in a lower link plane, in relation to the substantially vertical direction of the vehicle, and a camber arm connecting the hub carrier to the body is arranged in another link plane, above the lower link plane.

12. The wheel suspension according to claim 1 , wherein the steering means is designed either for passive steering via a wheel travel as a steering link or for active steering via a steering actuator as a tie link.

13. The wheel suspension according to claim 1 , wherein, in a plan view from the substantially vertical direction of the vehicle, the integral link, the chassis element and a spring assigned to the wheel-guiding link are arranged approximately along a line extending in a transverse direction of the vehicle, and in relation to a longitudinal direction of the vehicle, the integral link, the chassis element and the spring are arranged between the steering means and a camber arm that connects the hub carrier to the body.

14. The wheel suspension according to claim 13 , wherein the wheel is drivable via a shaft extending substantially in a transverse direction of the vehicle and in relation to the longitudinal direction of the vehicle, and the drive shaft is arranged between the steering means and the camber arm.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Wallgren Klaus

Classifications

• B60G2204/422

  Links for mounting suspension elements · CPC title

• B60G7/008

  Attaching arms to unsprung part of vehicle (B60G7/005, B60G7/006 take precedence) · CPC title

• B60G2204/129

  Damper mount on wheel suspension or knuckle · CPC title

• B60G2206/121

  the arm having an H or X-shape · CPC title

• B62D7/228

  acting between the steering gear and the road wheels, e.g. on tie-rod · CPC title