Suspension system

Patent metadata

Field	Value
Publication number	US-11345204-B2
Application number	US-202117143585-A
Country	US
Kind code	B2
Filing date	Jan 7, 2021
Priority date	Feb 28, 2019
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

A suspension system having a knuckle carrier. A pivot mechanism may pivotally couple a control arm to the knuckle carrier. The pivot mechanism may include a preload nut that may exert a preload force on a bearing assembly. A platform may be fixedly disposed on the knuckle carrier. The platform may support an air spring and may have an arm that is coupled to a stabilizer bar subassembly.

First claim

What is claimed is:

1. A suspension system comprising:
a knuckle carrier that has a mounting stem;
a steering knuckle that is pivotally mounted to the knuckle carrier along an axis of rotation;
an upper control arm that is pivotally mounted to the knuckle carrier along a first control arm pivot axis; and
a platform that is fixedly disposed on the mounting stem and located above the upper control arm, wherein the platform supports an air spring and has an arm that is coupled to a stabilizer bar subassembly.

2. The suspension system of claim 1 wherein the arm extends along an arm axis and the arm axis is substantially parallel to the first control arm pivot axis.

3. The suspension system of claim 1 wherein the arm extends in a rearward longitudinal direction.

4. The suspension system of claim 1 wherein the platform has a disc portion that engages the air spring and is coupled to the mounting stem and the arm extends tangentially from the disc portion.

5. The suspension system of claim 1 wherein the mounting stem extends away from the steering knuckle.

6. The suspension system of claim 1 wherein the stabilizer bar subassembly is disposed above the upper control arm and the knuckle carrier.

7. The suspension system of claim 6 wherein the stabilizer bar subassembly includes a drop link that extends from the arm such that the drop link extends in an upward direction that extends away from the upper control arm.

8. The suspension system of claim 1 wherein the knuckle carrier has a upper hole that facilitates mounting of the upper control arm, a lower hole that facilitates mounting of a lower control arm, a shock absorber mount disposed above the lower hole that has first and second mounting tabs that extend from opposing first and second sides of the knuckle carrier, respectively, a neck portion disposed above the shock absorber mount, and a connecting web that extends from the upper hole to the shock absorber mount.

9. The suspension system of claim 8 wherein the connecting web is offset from a center plane of the knuckle carrier such that the connecting web extends to the first mounting tab to partially define the first side and does not extend to the second mounting tab, thereby partially defining a clearance recess between the connecting web and the second side.

10. The suspension system of claim 8 wherein the first and second mounting tabs are disposed opposite each other and are disposed directly above the lower hole.

11. The suspension system of claim 8 wherein the mounting stem is disposed directly above the upper hole.

12. The suspension system of claim 1 wherein the arm is disposed further inboard than the mounting stem.

13. The suspension system of claim 1 wherein the platform has a disc portion that has a first set of holes that receive fasteners that facilitate mounting of the disc portion to the knuckle carrier, wherein the arm is disposed further inboard than the first set of holes.

14. The suspension system of claim 13 wherein the disc portion has a second set of holes that receive fasteners that couple the air spring to the platform, wherein members of the second set of holes are disposed closer to an outside perimeter of the disc portion than the first set of holes are disposed to the outside perimeter.

15. A suspension system comprising:
a knuckle carrier that has a mounting stem;
a steering knuckle that is pivotally mounted to the knuckle carrier along an axis of rotation;
an upper control arm that is pivotally mounted to the knuckle carrier along a first control arm pivot axis; and
a platform that is fixedly disposed on the mounting stem and located above the upper control arm, wherein the platform supports an air spring and has an arm that is coupled to a stabilizer bar subassembly, wherein the arm extends along an arm axis and the arm axis is disposed above and substantially parallel to the first control arm pivot axis.

16. The suspension system of claim 15 wherein the arm axis is disposed further from the steering knuckle than the first control arm pivot axis is disposed from the steering knuckle.

17. A suspension system comprising:
a knuckle carrier that has a mounting stem;
a steering knuckle that is pivotally mounted to the knuckle carrier along an axis of rotation,
an upper control arm that is pivotally mounted to the knuckle carrier along a first control arm pivot axis; and
a platform that is fixedly disposed on the mounting stem and located above the upper control arm, wherein the platform supports an air spring and has an arm that is coupled to a stabilizer bar subassembly, wherein the stabilizer bar subassembly includes a drop link that extends from the arm in an upward direction that extends away from the upper control arm to an intermediate link.

18. The suspension system of claim 17 wherein the intermediate link extends in a rearward direction from the drop link.

19. The suspension system of claim 18 wherein the intermediate link extends from the drop link to a stabilizer bar that extends inboard from the intermediate link.

20. The suspension system of claim 19 wherein the stabilizer bar is positioned at a higher elevation than the upper control arm.

Assignees

• Arvinmeritor Technology Llc

Inventors

• Lorenz Edwin D
• Sadlik Adam P
• SCHLUNDT Michael
• Marathe Rituja D

Classifications

• B60G2202/24

  Fluid damper · CPC title

• B60G11/28

  characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle · CPC title

• B60G2204/1224

  End mounts of stabiliser on wheel suspension · CPC title

• B60G2300/14

  Buses · CPC title

• B60G2300/02

  Trucks; Load vehicles · CPC title