Drive wheel having an electric wheel hub motor for motor vehicles and motor vehicle

Patent metadata

Field	Value
Publication number	US-9783040-B2
Application number	US-201514816594-A
Country	US
Kind code	B2
Filing date	Aug 3, 2015
Priority date	Sep 9, 2014
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

A drive wheel having an electric wheel hub motor for a motor vehicle includes a stator arranged around a wheel hub and is connected to the wheel hub in a non-rotatable manner. A rotor is mounted in such a manner that it can rotate relative to the stator to drive a wheel rim connected to the rotor in a non-rotatable manner. At least two energy storage devices are arranged between the wheel hub and the stator to output electrical energy for operation of the electric wheel hub motor. The energy storage devices are embodied in each case in the shape of a ring segment in such a manner that the energy storage devices form a closed ring around the wheel hub when lying adjacent to one another.

First claim

What is claimed is:

1. A drive wheel having a wheel hub motor, comprising:
a stator non-rotatably mounted to a wheel hub;
a rotor rotatably mounted to the stator, and having an outer circumference configured to receive a tire; and
batteries arranged between the wheel hub and the stator to power the wheel hub motor, each of the batteries shaped as ring segments contacting one another and with arcuate inner walls forming a closed ring around the wheel hub.

2. The drive wheel of claim 1 , wherein an inner circumferential surface of the stator forms an outer wall of the batteries.

3. The drive wheel of claim 1 , wherein an outer circumferential surface of the wheel hub forms an inner wall of the batteries.

4. The drive wheel of claim 1 further comprising at least one power control device attached to at least one of the batteries to control electrical energy supplied from each of the batteries to the wheel hub motor.

5. The drive wheel of claim 1 , wherein the rotor is mounted in a rotatable manner on an outer circumferential surface of the stator using at least one roller bearing arranged between the rotor and the stator.

6. The drive wheel of claim 1 further comprising a rubber tire secured in a non-rotatable manner to an outer circumferential surface of the rotor.

7. A drive wheel, comprising:
a wheel hub;
a stator non-rotatably mounted to the wheel hub;
a rotor rotatably mounted to the stator and having an outer rim configured to receive a tire; and
batteries, each comprising an annular sector contacting adjacent batteries and forming a closed ring of segments around the wheel hub to electrically power a wheel motor comprising the stator and the rotor.

8. The drive wheel of claim 7 further comprising a rubber tire mounted to the rotor.

9. The drive wheel of claim 7 further comprising a controller electrically connected to at least two of the batteries and configured to control electrical power to the wheel motor.

10. The drive wheel of claim 9 wherein the controller is mounted to at least one of the batteries.

11. The drive wheel of claim 7 further comprising:
a tire mounted to the outer rim of the rotor.

12. A vehicle drive wheel, comprising:
a motor including a stator configured for non-rotatable mounting to a wheel hub, and a rotor rotatably mounted to the stator by at least one bearing therebetween, the rotor having a rim configured to receive a tire; and
a plurality of batteries each shaped as an annular segment and contacting one another to form a closed ring around the wheel hub, the batteries configured for connection to the motor.

13. The vehicle drive wheel of claim 12 further comprising a controller electrically connected to the plurality of batteries and the motor, the controller configured to control electrical energy flow between the batteries and the motor.

14. The vehicle drive wheel of claim 13 wherein the controller is mounted to at least one of the plurality of batteries.

Assignees

• Ford Global Tech Llc

Inventors

• Wolf-Monheim Friedrich Peter

Classifications

• Y02T10/641

  Cross-Sectional Technologies · mapped topic

• B60K7/0007 Primary

  the motor being electric · CPC title

• H02K7/14

  Structural association with mechanical loads, e.g. with hand-held machine tools or fans (with fan or impeller for cooling the machine H02K9/06) · CPC title

• B60K2007/0038

  the motor moving together with the wheel axle · CPC title

• B60L2220/44

  Wheel Hub motors, i.e. integrated in the wheel hub · CPC title