Wheel suspension and axle including wheel suspension for a motor vehicle

Patent metadata

Field	Value
Publication number	US-9643464-B2
Application number	US-201514669770-A
Country	US
Kind code	B2
Filing date	Mar 26, 2015
Priority date	Mar 26, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A single wheel suspension is provided for a rear axle of a vehicle. The single wheel suspension may have a transverse leaf spring, a damper, and a wheel carrier. The wheel carrier can be connected to the vehicle via a transverse link connected to the wheel carrier in an articulated manner. The wheel carrier can be further connected to the vehicle via a tie rod. The transverse links may include a carrier link and a camber link. The carrier link may be connected to the wheel carrier via two connections, with the transverse leaf spring being coupled in an articulated manner to one of the transverse links or wheel carrier via a connection element, which permits relative movement between the leaf spring and the transverse link or wheel carrier the leaf spring is coupled to.

First claim

What is claimed:

1. A single wheel suspension for a rear axle of a vehicle, comprising:
a transverse leaf spring;
a damper;
a wheel carrier; and
a transverse carrier link and a transverse camber link coupled to the wheel carrier in an articulated manner and configured to connect the wheel carrier to the vehicle, wherein the transverse camber link is arranged above the transverse carrier link; and
a tie rod connecting the wheel carrier to the vehicle, either directly or via an auxiliary frame interposed between the tie rod and the wheel carrier, the tie rod being positioned forward of the transverse camber link in a direction of travel of the vehicle,
wherein the transverse leaf spring is coupled in an articulated manner to one of the transverse carrier link, the transverse camber link, or the wheel carrier via a connection link comprising first and second opposite ends, the first end of the connection link being directly connected to the transverse leaf spring and the second end of the connection link being directly connected to the one of the transverse carrier link, the transverse camber link, or the wheel carrier.

2. The suspension of claim 1 , wherein the transverse leaf spring comprises a composite material or is made of a composite material.

3. The suspension of claim 1 , wherein the tie rod extends either inside a plane of the transverse carrier link or outside the plane of the transverse carrier link.

4. A rear axle for a vehicle, the axle comprising:
an auxiliary frame;
the transverse leaf spring; and
two single wheel suspensions, each single wheel suspension being arranged according to claim 1 .

5. The rear axle of claim 4 , further comprising two leaf spring bearings spaced apart from one another and arranged between the two single wheel suspensions on the auxiliary frame, wherein the transverse leaf spring is supported on the auxiliary frame by the leaf spring bearings.

6. The rear axle of claim 4 , wherein the transverse leaf spring has a cross-section that changes over a longitudinal extent of the transverse leaf spring.

7. A vehicle comprising a rear axle including two single wheel suspensions, wherein each single wheel suspension is arranged as claimed in claim 1 .

8. The suspension of claim 1 , wherein the transverse leaf spring is coupled in the articulated manner to the transverse camber link via the connection link, and wherein the connection link extends between the transverse leaf spring and the transverse camber link in a direction that is substantially perpendicular to a transverse direction of the vehicle.

9. The suspension of claim 1 , wherein the transverse carrier link is coupled to the wheel carrier in an articulated manner by two connections.

10. A single wheel suspension for a rear axle of a vehicle, comprising:
a transverse leaf spring;
a wheel carrier; and
first and second transverse links articulatably coupled to the wheel carrier, the first transverse link being coupled to the wheel carrier by two connections,
wherein the transverse leaf spring is articulatably coupled to, and movable along a transverse direction of the vehicle relative to, one of the transverse links or the wheel carrier.

11. The suspension of claim 10 , wherein a cross-section of the leaf spring varies along a length thereof.

12. The suspension of claim 10 , further comprising a connection element coupling the transverse leaf spring to the one of the transverse links or the wheel carrier, the connection element comprising a first end connected directly to the transverse leaf spring and a second end, opposite the first end, connected directly to the one of the transverse links or the wheel carrier.

13. The suspension of claim 10 , wherein the transverse leaf spring is made of a composite material.

14. The suspension of claim 10 , wherein the first transverse link is directly coupled to the wheel carrier in the articulated manner.

15. The suspension of claim 10 wherein the first transverse link is a carrier link and the second transverse link is a camber link, wherein the camber link is positioned above the carrier link.

16. The suspension of claim 15 , further comprising a tie rod positioned forward of the camber link in a direction of travel of the vehicle.

17. The suspension of claim 16 , further comprising a damper positioned between the tie rod and the camber link.

18. A rear axle for a vehicle, comprising:
an auxiliary frame;
a transverse leaf spring connecting first and second single wheel suspensions;
and
two leaf spring bearings spaced apart from one another and arranged between the first and second single wheel suspensions on the auxiliary frame,
wherein the transverse leaf spring is supported on the auxiliary frame by the leaf spring bearings, and
wherein each single wheel suspension comprises:
a wheel carrier;
first and second transverse links articulatably coupled to the wheel carrier; and

a connection element articulatably coupling the transverse leaf spring to one of the transverse links or the wheel carrier, the connection element comprising a first end connected directly to the transverse leaf spring and a second end, opposite the first end, connected directly to the one of the transverse links or the wheel carrier.

Assignees

• Ford Global Tech Llc

Inventors

• Zandbergen Paul
• Girelli Consolaro Albert
• Mainz Daniel

Classifications

• B60G11/08

  arranged substantially transverse to the longitudinal axis of the vehicle · CPC title

• B60G2202/114

  transversally arranged · CPC title

• B60G3/20 Primary

  all arms being rigid · CPC title

• B60G2200/18

  Multilink suspensions, e.g. elastokinematic arrangements · CPC title

• B60G2204/121

  Mounting of leaf springs · CPC title