Method for charging a traction battery, device for transmitting energy to an electric vehicle and electric vehicle

Patent metadata

Field	Value
Publication number	US-8933663-B2
Application number	US-201214234082-A
Country	US
Kind code	B2
Filing date	Jun 14, 2012
Priority date	Jul 22, 2011
Publication date	Jan 13, 2015
Grant date	Jan 13, 2015

Abstract

In a device for transmitting energy to the electric vehicle a first rotating disc is provided on a parking space, which turning disc can be rotated about a rotational axis by means of a drive device. Arranged on the rotating disc is a positioning device by means of which an energy output device can be positioned on the first rotating disc, as a result of which a radial distance between the output device and the first rotational axis can be changed.

First claim

The invention claimed is:

1. A device for transmitting energy to an electric vehicle, comprising:
a parking place for parking the electric vehicle;
a first rotating disc arranged on a bottom of the parking place;
a first drive device constructed to rotate the first rotating disc about a first rotation axis;
a positioning device arranged on the first rotating disc; and
an output device for outputting the energy, said output device arranged on the positioning device and movable by the positioning device on the first rotating disc.

2. The device of claim 1 , wherein the positioning device is completely arranged within an outer circumference of the first rotating disc.

3. The device of claim 1 , further comprising a second drive device, said positioning device comprising a second rotating disk, said output device being arranged on the second rotating disc and rotatable about a rotation axis of the second rotating disc by the second drive device, and wherein a diameter of the second rotating disc is greater than a radius of the first rotating disk.

4. The device of claim 3 , wherein the first drive device for the first rotating disc and/or the drive device for the positioning device are constructed to transmit a respective drive force respectively generated by the first and second drive device onto the first and second rotating disc via frictional coupling.

5. The device of claim 1 , wherein the output device is movable exclusively in a plane parallel to the bottom of the parking place by the first rotating disc and the positioning device.

6. The device of claim 1 , wherein the output device includes a primary coil for generating an alternating magnetic field.

7. The device of claim 6 , wherein the primary coil is configured rotation symmetrical.

Assignees

• Elias Björn
• Peer Reinhard
• Audi Ag

Inventors

• Elias Björn
• Peer Reinhard

Classifications

• H02J50/10

  using inductive coupling · CPC title

• H02J50/90

  involving detection or optimisation of position, e.g. alignment · CPC title

• B60L2270/147

  electro magnetic [EMI] · CPC title

• B60L2210/40

  DC to AC converters · CPC title

• B60L53/38

  specially adapted for charging by inductive energy transfer · CPC title