Suspension system for vehicle

Patent metadata

Field	Value
Publication number	US-10435068-B2
Application number	US-201715673670-A
Country	US
Kind code	B2
Filing date	Aug 10, 2017
Priority date	Dec 14, 2016
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A suspension system for a vehicle may include a knuckle rotatably supporting a wheel and a plurality of arms connecting the knuckle with a vehicle body wherein an arm among the plurality of arms may be a virtual link formed by a virtual link module and a point at which the virtual link applies a constraint force to the knuckle may be formed at a virtual space.

First claim

What is claimed is:

1. A suspension system for a vehicle comprising a knuckle rotatably supporting a wheel and a plurality of arms connecting the knuckle with a vehicle body,
wherein an arm among the plurality of arms is a virtual link formed by a virtual link module and a point at which the virtual link applies a constraint force to the knuckle is formed at a virtual space, and
wherein the virtual link module includes:
an upper virtual arm including two arms extending from a virtual joint to form a triangle; and
a lower virtual arm including two arms extending from the virtual joint to form a triangle different from the triangle formed by the upper virtual arm, and

wherein end portions of the two arms of the upper virtual arm are respectively connected to the knuckle, and
wherein end portions of the two arms of the lower virtual arm are respectively connected to the vehicle body.

2. The suspension system of claim 1 , wherein the end portions of the two arms of the upper virtual arm are respectively formed of an internal joint and an external joint, and
the end portions of the two arms of the lower virtual arm are respectively formed of an internal joint and an external joint.

3. The suspension system of claim 2 , wherein horizontal rubber bushings are respectively used for the internal joint and the external joint of the upper virtual arm, and horizontal rubber bushings are respectively used for the internal joint and the external joint of the lower virtual arm.

4. The suspension system of claim 2 , wherein the internal joint of the upper virtual arm is disposed lower than the external joint of the upper virtual arm, and the internal joint of the lower virtual arm is disposed higher than the external joint of the lower virtual arm.

5. The suspension system of claim 1 , wherein a ball joint is used for the virtual joint to enable of relative rotation of the upper virtual arm and the lower virtual arm.

6. The suspension system of claim 1 , wherein the point at which the virtual link applies the constraint force to the knuckle is an intersection point formed by intersecting an intersection line where an extending surface of the triangle formed by the upper virtual arm intersects with an extending surface of the triangle formed by the lower virtual arm with an extending line connecting the end portions of the two arms of the lower virtual arm.

7. The suspension system of claim 6 , wherein the virtual link is formed by the intersection line between the intersection point and the virtual joint.

8. A suspension system for a vehicle including a knuckle rotatably supporting a wheel and a plurality of arms connecting the knuckle with a vehicle body,
wherein an arm among the plurality of arms is a virtual link formed by a virtual link module, and the virtual link module includes an upper virtual arm and a lower virtual arm respectively having two arms extending from a virtual joint to cause a point at which the virtual link applies a constraint force to the knuckle to be formed at a virtual space.

9. The suspension system of claim 8 , wherein the two arms of the upper virtual arm extend from the virtual joint to form a triangle, and end portions of the two arms of the upper virtual arm are respectively connected to the knuckle, and
the two arms of the lower virtual arm extend from the virtual joint to form a triangle different from the triangle formed by the upper virtual arm, and end portions of the two arms of the lower virtual arm are respectively connected to the vehicle body.

10. The suspension system of claim 9 , wherein the end portions of the two arms of the upper virtual arm are respectively formed of an internal joint and an external joint, and
the end portions of the two arms of the lower virtual arm are respectively formed of an internal joint and an external joint.

11. The suspension system of claim 10 , wherein each of horizontal rubber bushings is respectively used for the internal joint and the external joint of the upper virtual arm, and each of horizontal rubber bushings is respectively used for the internal joint and the external joint of the lower virtual arm.

12. The suspension system of claim 10 , wherein the internal joint of the upper virtual arm is disposed lower than the external joint of the upper virtual arm, and the internal joint of the lower virtual arm is disposed higher than the external joint of the lower virtual arm.

13. The suspension system of claim 9 , wherein a ball joint is used for the virtual joint to enable of relative rotation of the upper virtual arm and the lower virtual arm.

14. The suspension system of claim 9 , wherein the point at which the virtual link applies the constraint force to the knuckle is an intersection point formed by intersecting an intersection line where an extending surface of the triangle formed by the upper virtual arm intersects with an extending surface of the triangle formed by the lower virtual arm with an extending line connecting the end portions of the two arms of the lower virtual arm.

15. The suspension system of claim 14 , wherein the virtual link is formed by the intersection line between the intersection point and the virtual joint.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Seoul Nat Univ R&Db Foundation

Inventors

• Kwon Seungmin
• Yi Yong Sub
• Woo Seung Hoon
• Kim Yoon Young
• Kim Suh In

Classifications

• B62D7/18

  Steering knuckles; King pins · CPC title

• B60G2200/144

  with two lateral arms forming a parallelogram · CPC title

• B62D7/20 Primary

  Links, e.g. track rods (means for adjusting camber, castor, or toe-in B62D17/00) · CPC title

• B60G3/20 Primary

  all arms being rigid · CPC title

• B60G2204/421

  Pivoted lever mechanisms for mounting suspension elements, e.g. Watt linkage · CPC title