Drive device for a vehicle

Patent metadata

Field	Value
Publication number	US-9564839-B2
Application number	US-201314651322-A
Country	US
Kind code	B2
Filing date	Nov 25, 2013
Priority date	Dec 11, 2012
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A drive device for a vehicle, in particular a rail vehicle, includes a set of drive units each having at least one electric traction motor and a power generation unit which is provided for generating power for the traction motor, and a set of motor contactor units each being assigned to a traction motor. In order to provide a type of drive device which has a high availability in the event of a failure, has few structural elements and can be produced economically, at least one motor contactor unit includes at least one switching device which is connected between the power generation unit for the associated traction motor and a feed point.

First claim

The invention claimed is:

1. A drive device for a vehicle or a rail vehicle, the drive device comprising:
a feed;
a set of drive units each having at least one respective electric traction motor and a power generation unit for generating power for said respective traction motor; and
a set of motor contactor units each being associated with a respective one of said traction motors, at least one of said motor contactor units having at least one switching element configured to disconnect said associated traction motor from said respective power generation unit and at least one of said motor contactor units having at least one switching device connected between said respective power generation unit for said associated traction motor and said feed.

2. The drive device according to claim 1 , wherein said drive units are connected with one another in a parallel connection and said parallel connection is supplied by said feed.

3. The drive device according to claim 1 , wherein said traction motors are synchronous motors.

4. The drive device according to claim 1 , wherein said motor contactor unit has a control unit for synchronously activating said switching element and said switching device.

5. The drive device according to claim 1 , wherein each of said motor contactor units has at least one respective switching device connected between said respective power generation unit for said associated traction motor and said feed.

6. The drive device according to claim 1 , wherein:
said feed supplies said set of drive units in common; and
a feed contactor unit is configured to disconnect said set of drive units from said feed and has a central disconnection element connected between said set of drive units and said feed.

7. The drive device according to claim 6 , which further comprises a pre-charging circuit associated with said feed contactor unit.

8. The drive device according to claim 1 , which further comprises an inductor unit having inductor elements each being associated with a different one of said drive units and being connected between said respective power generation unit and said feed.

9. The drive device according to claim 8 , wherein said inductor elements are each disposed between said feed and a respective one of said switching devices.

10. A rail vehicle, comprising a drive device according to claim 1 .

Assignees

• Siemens Ag

Inventors

• Fetter Wolfgang

Classifications

• Y02T10/648

  Cross-Sectional Technologies · mapped topic

• H02P5/74 Primary

  controlling two or more AC dynamo-electric motors (H02P5/46, H02P5/60 take precedence) · CPC title

• B60L2210/40

  DC to AC converters · CPC title

• B60L2210/30

  AC to DC converters · CPC title

• B60L3/04

  Cutting off the power supply under fault conditions (protective devices and circuit arrangements in general H01H; H02H) · CPC title