Structure of tail gate guide bumper using magnetic force

Patent metadata

Field	Value
Publication number	US-9598122-B2
Application number	US-201514958752-A
Country	US
Kind code	B2
Filing date	Dec 3, 2015
Priority date	Apr 10, 2015
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A structure of a tail gate guide bumper using magnetic force may include one or more tail gate guide bumpers configured to be provided at a tail gate, and a vehicle body-side guide bumper provided at a vehicle body side at a position corresponding to the tail gate guide bumper, in which the tail gate guide bumper includes a permanent magnet, and the vehicle body-side guide bumper includes an electromagnet, and a polarity of the electromagnet may be controlled, so that the electromagnet exerts repulsive force and gravitation force with respect to the permanent magnet of the tail gate guide bumper in response to opening and closing of the tail gate.

First claim

What is claimed is:

1. A structure of a tail gate guide bumper using magnetic force, comprising:
one or more tail gate guide bumpers configured to be provided at a tail gate; and
a vehicle body-side guide bumper provided at a vehicle body side at a position corresponding to the tail gate guide bumper,
wherein the tail gate guide bumper includes a permanent magnet, and
the vehicle body-side guide bumper includes an electromagnet, and a polarity of the electromagnet is controlled, so that the electromagnet exerts repulsive force and gravitation force with respect to the permanent magnet of the tail gate guide bumper in response to opening and closing of the tail gate.

2. The structure of claim 1 , wherein a polarity of the electromagnet of the vehicle body-side guide bumper is configured to be changed by a current flow control of a body control module (BCM) in response to the opening and closing of the tail gate.

3. The structure of claim 2 , wherein the electromagnet of the vehicle body-side guide bumper is controlled so as to have an opposite polarity to the polarity of the permanent magnet of the tail gate guide bumper, so that the tail gate is maintained while being in close contact with the vehicle body side by magnetic force when the tail gate is closed, and to have the same polarity as the polarity of the permanent magnet, so that the tail gate is separated from the vehicle body by repulsive force when the tail gate is opened.

4. The structure of claim 1 , wherein the electromagnet is buried in the vehicle body-side guide bumper by insert molding.

5. The structure of claim 2 , wherein when a tail gate open switch is pressed or the tail gate is opened by a lever, the body control module is configured to detect a latch locking release signal, and control a current of an external surface of the electromagnet mounted at the vehicle-body side to flow from a first end to a second end of a coil of the electromagnet so that the external surface of the electromagnet has the same polarity as the polarity of the permanent magnet of the tail gate.

6. The structure of claim 2 , wherein when the tail gate is closed, the body control module is configured to detect a latch locking signal through a sensor, and control a current to flow from a second end to a first end of a coil in the electromagnet of the vehicle body-side guide bumper, so that the electromagnet of the vehicle body-side guide bumper has an opposite polarity to that of the permanent magnet of the tail gate.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Lee Ho Sang
• Yoo Dahm

Classifications

• B62D33/037 Primary

  Latching means therefor · CPC title

• E05F5/022 Primary

  specially adapted for vehicles, e.g. for hoods or trunks · CPC title

• E05Y2600/10

  Adjustable · CPC title

• E05F5/06

  Buffers {or stops limiting opening of swinging wings, e.g. floor or wall stops}(E05F5/02 takes precedence) · CPC title

• E05Y2201/462

  Electromagnets · CPC title