Multi-link motor vehicle axle

Patent metadata

Field	Value
Publication number	US-11872865-B2
Application number	US-202117530656-A
Country	US
Kind code	B2
Filing date	Nov 19, 2021
Priority date	Jan 8, 2021
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

A multi-link motor vehicle axle for the attachment of a wheel carrier to a motor vehicle body. The axle includes a first link plane and a second link plane. A first transverse link and a second transverse link are assigned to the first link plane. The second link plane includes a trapezoidal link which is attached by way of a first coupling link to the wheel carrier and by way of a second coupling link to the motor vehicle body. A longitudinal link of the multi-link motor vehicle axle is formed, which longitudinal link is connected, at its longitudinal link end facing away from the second link plane, to the motor vehicle body. The longitudinal link is attached, by way of its longitudinal link end facing toward the second link plane, to the trapezoidal link.

First claim

What is claimed is:

1. A multi-link motor vehicle axle for the attachment of a wheel carrier to a motor vehicle body, said multi-link motor vehicle axle comprising:
a first link plane and a second link plane,
a first transverse link and a second transverse link each assigned to the first link plane,
a trapezoidal link assigned to the second link plane and which is attached by way of a first coupling link to the wheel carrier and by way of a second coupling link to the motor vehicle body, wherein the first coupling link includes a first end that is pivotably coupled to the wheel carrier and a second end that is pivotably coupled to the trapezoidal link at a first connection point, and wherein the second coupling link includes a first end that is pivotably coupled to the trapezoidal link at a second connection point and a second end that is configured to be attached to the motor vehicle body, and
a longitudinal link having (i) a first longitudinal link end that faces away from the second link plane and is configured to be connected to the motor vehicle body, and (ii) a second longitudinal link end that faces toward the second link plane and is attached to the trapezoidal link,
wherein the longitudinal link is mounted to the trapezoidal link at a location between the first and second connection points on the trapezoidal link,
wherein the longitudinal link is connected, at an attachment element, to the trapezoidal link, and
wherein the attachment element is at least partially positioned on a top surface of the trapezoidal link.

2. The multi-link motor vehicle axle as claimed in claim 1 , wherein the longitudinal link is attached behind a wheel axis or in front of the wheel axis as viewed in a direction of a motor vehicle longitudinal axis (X) in a direction of travel.

3. The multi-link motor vehicle axle as claimed in claim 1 , wherein the longitudinal link is arranged on the trapezoidal link in a manner pivotable about an element axis of the attachment element, wherein the element axis is formed orthogonally with respect to a longitudinal axis of the longitudinal link.

4. The multi-link motor vehicle axle as claimed in claim 1 , wherein the longitudinal link has, at one of the longitudinal link ends, a mount which has a function of a comfort mount.

5. The multi-link motor vehicle axle as claimed in claim 1 , wherein one of the two transverse links is an active tie rod.

6. The multi-link motor vehicle axle as claimed in claim 1 , further comprising a load-bearing spring and a damper of the motor vehicle body, which are arranged substantially in a direction of a motor vehicle longitudinal axis (X) relative to one another.

7. The multi-link motor vehicle axle as claimed in claim 1 , wherein the two transverse links are arranged substantially parallel.

8. The multi-link motor vehicle axle as claimed in claim 1 , wherein the first coupling link and the second coupling link respectively engage on a side of the trapezoidal link which faces toward the wheel carrier and on a side of the trapezoidal link which faces away from the wheel carrier.

9. The multi-link motor vehicle axle as claimed in claim 1 , wherein the second longitudinal link end is directly connected to the trapezoidal link.

10. The multi-link motor vehicle axle as claimed in claim 1 , wherein the second longitudinal link end is not directly connected to the wheel carrier.

11. The multi-link motor vehicle axle as claimed in claim 1 , wherein the second longitudinal link end is positioned further from the wheel carrier than the first coupling link.

12. The multi-link motor vehicle axle as claimed in claim 1 , wherein the longitudinal link is configured to pivot relative to the attachment element about an element axis.

13. The multi-link motor vehicle axle as claimed in claim 12 , wherein the element axis is oriented obliquely relative to a longitudinal axis of the wheel carrier.

14. The multi-link motor vehicle axle as claimed in claim 12 , wherein the element axis is oriented orthogonally relative to a longitudinal axis of the longitudinal link.

15. The multi-link motor vehicle axle as claimed in claim 12 , wherein the element axis is oriented (i) obliquely relative to a longitudinal axis of the wheel carrier, and (ii) orthogonally relative to a longitudinal axis of the longitudinal link.

16. A multi-link motor vehicle axle for the attachment of a wheel carrier to a motor vehicle body, said multi-link motor vehicle axle comprising:
a first link plane and a second link plane,
a first transverse link and a second transverse link each assigned to the first link plane,
a trapezoidal link assigned to the second link plane and which is attached by way of a first coupling link to the wheel carrier and by way of a second coupling link to the motor vehicle body, wherein the first coupling link includes a first end that is pivotably coupled to the wheel carrier and a second end that is pivotably coupled to the trapezoidal link at a first connection point, and wherein the second coupling link includes a first end that is pivotably coupled to the trapezoidal link at a second connection point and a second end that is configured to be attached to the motor vehicle body, and
a longitudinal link having (i) a first longitudinal link end that faces away from the second link plane and is configured to be connected to the motor vehicle body, and (ii) a second longitudinal link end that faces toward the second link plane and is attached to the trapezoidal link,
wherein the longitudinal link is mounted to the trapezoidal link at a location between the first and second connection points on the trapezoidal link,
wherein the second longitudinal link end is directly connected to the trapezoidal link, and wherein the second longitudinal link end is not directly connected to the wheel carrier.

Assignees

• Porsche Ag

Inventors

• Zeretzke Stefan
• Sabath Stefan
• Munzert Andreas
• Krawietz Marcel
• Kemna Jens

Classifications

• B60G3/202 Primary

  having one longitudinal arm and two parallel transversal arms, e.g. dual-link type strut suspension · CPC title

• B60G7/001

  Suspension arms, e.g. constructional features (B60G7/006 takes precedence) · CPC title

• B60G2200/182

  with one longitudinal arm or rod and lateral rods · CPC title

• B60G2204/422

  Links for mounting suspension elements · CPC title

• B60G2206/11

  the arm being a radius or track or torque or steering rod or stabiliser end link · CPC title