IP Library Granted Patent US 8,517,448
Granted Patent B2
US 8,517,448 · App. 13/221,445 · Granted Aug 27, 2013

Decklid damper for a vehicle

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Quick Facts
Patent No.
US 8,517,448
App. No.
13/221,445
Granted
Aug 27, 2013
Kind
B2
Abstract

In accordance with exemplary embodiments, a magnetic decklid damper system is provided for a vehicle. The system comprises a decklid coupled to a body of the vehicle via a hinge strap facilitating the decklid moving between a closed position and an open position. The hinge strap includes a first magnetic element coupled to the hinge strap, and a second magnetic element coupled to a body member of the vehicle. The first and second magnetic elements have a common polarity to magnetically repel each other as the decklid moves toward the open position to provide a damping effect for the decklid.

Claims (33)

1. A system, comprising:

a decklid for a vehicle;

a hinge strap coupled to a body of the vehicle and the decklid facilitating the decklid moving between a closed position and an open position;

a first electromagnetic assembly coupled to the hinge strap; and

a second electromagnetic assembly coupled to a body member of the vehicle and having a common polarity as the first magnetic element to magnetically repel the first magnetic element as the decklid moves toward the open position;

wherein the first electromagnetic assembly and second electromagnetic assembly are activated upon the decklid moving toward the open position.

2. The system of claim 1 , wherein the first electromagnetic assembly and second electromagnetic assembly are deactivated upon the decklid returning to the closed position.

3. The system of claim 1 , wherein the first magnetic element and second magnetic element further comprise a first and second magentic assembly each having a plurality of magnets interleaved with a plurality of insulating spacers.

4. The system of claim 3 , wherein pairs of the plurality of insulating spacers have a deformable hinge therebetween.

5. The system of claim 4 , wherein the deformable hinge between the pairs of insulating spacers deforms when the decklid moves into the open position.

6. The system of claim 5 , wherein the first magnetic assembly includes end-caps for the assembly, the end caps having mounting members and providing a loading force to retain the assembly coupled to the hinge strap.

7. The system of claim 1 , further comprising a powertrain providing power to wheels to propel the vehicle.

8. A system comprising:

a decklid for a vehicle;

a hinge box coupled to the vehicle;

a hinge strap coupled to the hinge box and the decklid, and facilitating the decklid moving between a closed position and an open position; and

a magnetic assembly comprising:

a first magnet positioned within a body coupled to the hinge box; and

a second magnet having a common polarity as the first magnet mounted on a rod coupled to the hinge strap, the rod co-axially arranged to translate within the body when the decklid moves between the closed position and the open position;

wherein, the rod moves the second magnet toward the first magnet within the body resulting in a magnetic repelling force between the first and second magnets when the decklid moves toward the open position.

9. The system of claim 8 , further comprising a powertrain providing power to wheels to propel the vehicle.

10. A vehicle, comprising:

a body for the vehicle;

a decklid providing a closure for a portion of the body;

a powertrain mounted within the body for providing power to wheels to propel the vehicle;

a hinge strap coupled to the body of the vehicle and the decklid facilitating the decklid moving between a closed position and an open position; and

a first electromagnetic assembly coupled to the hinge strap; and

a second electromagnetic assembly coupled to a body member of the vehicle and having a common polarity as the first magnetic element to magnetically repel the first magnetic element as the decklid moves toward the open position;

wherein the first electromagnetic assembly and the second electromagnetic assembly are activated upon the decklid moving toward the open position.

11. The vehicle of claim 10 , wherein the first electromagnetic assembly and the second electromagnetic assembly are deactivated upon the decklid moving to the closed position.

12. The vehicle of claim 10 , wherein the first magnetic element and second magnetic element further comprise a first and second magentic assembly each having a plurality of magnets interleaved with a plurality of insulating spacers.

13. The vehicle of claim 12 , wherein pairs of the plurality of insulating spacers have a deformable hinge therebetween.

14. The vehicle of claim 13 , wherein the deformable hinge between the pairs of insulating spacers deforms when the decklid moves into the open position.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034186/0776 →
SECURITY AGREEMENT Recorded Jun 28, 2012
From: GM GLOBAL TECHNOLOGY OPERATIONS LLC
To: WILMINGTON TRUST COMPANY
Reel/Frame 028458/0184 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 30, 2011
From: KRAJENKE, GARY W.; STANDARD, ALVIN N.; SCHULTE, EDWARD L.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 026830/0674 →