Drive arrangement for a hybrid vehicle

• US 20080023287A1
• Filed: 07/18/2007
• Published: 01/31/2008
• Est. Priority Date: 07/28/2006
• Status: Abandoned Application

• Current Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Sasse, Christoph, Thiede, Andreas, Bartha, Alexander, Wetzel, Michael, Muller, Thorsten, Niehaus, Udo
• Application Number:
  US11/880,071
• Publication Number:
  US 20080023287A1
• Time in Patent Office: Days
• US Class Current: 192/48.1
• CPC Class Codes: B60K 6/26 characterised by the motors or the generators
• CPC Class Codes: B60K 6/38 characterised by the driveline clutches shift clutches within the gearing or transmission B60K6/36 , B60K6/54
• CPC Class Codes: B60K 6/387 Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
• CPC Class Codes: B60K 6/40 characterised by the assembly or relative disposition of components
• CPC Class Codes: B60K 6/405 Housings
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60L 15/2054 by controlling transmissions or clutches
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2220/14 Synchronous machines
• CPC Class Codes: B60L 2220/50 Structural details of electrical machines
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/443 Torque
• CPC Class Codes: B60L 2270/145 Structure borne vibrations
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: F16H 2045/002 comprising a clutch between prime mover and fluid gearing
• CPC Class Codes: H02K 7/006 Structural association of a motor or generator with the drive train of a motor vehicle
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility

Abstract

A drive arrangement for a hybrid vehicle includes an internal combustion engine with a takeoff shaft; an electrical machine with a rotor and a stator; a first and a second clutch, each with an input part and an output part; and a housing, which surrounds at least the clutches and the electrical machine. The input part of the first clutch is in working connection with the takeoff shaft of the internal combustion engine, and the output part of the second clutch can be connected to the drive wheels of the vehicle. A torque-transmitting device for transmitting a torque is installed between the output part of the first clutch and the input part of the second clutch, where the housing has an intermediate housing wall, on which the rotor of the electrical machine is at least indirectly supported, and where the rotor of the electrical machine is or can be connected nonrotatably to the torque-transmitting device.

Claims

1. A drive arrangement for a hybrid vehicle, the arrangement comprising:

a first clutch having an input part and an output part, wherein the input part can be connected to the takeoff shaft of an internal combustion engine;

a second clutch having an input part and an output part, wherein the output part can be connected to the drive wheels of the vehicle;

a torque transmitting device installed between the output part of the first clutch and the input part of the second clutch;

an electrical machine having a rotor and a stator, wherein the rotor can be connected nonrotatably to the torque transmitting device; and

a housing surrounding the first clutch, the second clutch, and the electrical machine, the housing having an intermediate wall on which the rotor is supported.

2. The drive arrangement of claim 1 wherein the first clutch is a dry friction clutch.

3. The drive arrangement of claim 1 further comprising an actuating device which can actuate the first clutch, the actuating device being supported on the intermediate housing wall.

4. The drive arrangement of claim 3 wherein the actuating device comprises a concentric slave cylinder which supports the rotor of the electrical machine.

5. The drive arrangement of claim 1 wherein the second clutch is a hydrodynamic clutch.

6. The drive arrangement of claim 5 wherein the hydrodynamic clutch is a torque converter.

7. The drive arrangement of claim 1 wherein the torque transmitting device comprises an intermediate shaft which is detachably connected for rotation in common to the output part of the first clutch.

8. The drive arrangement of claim 7 wherein the intermediate shaft is formed as part of the input part of the second clutch.

9. The drive arrangement of claim 7 wherein the intermediate shaft is separate from the second clutch and is in working nonrotatable connection with the input part of the second clutch.

10. The drive arrangement of claim 7 wherein the electrical machine further comprises a rotor hub, the intermediate shaft being in working connection with the rotor hub.

11. The drive arrangement of claim 7 wherein the electrical machine further comprises a rotor hub formed by the intermediate shaft.

12. The drive arrangement of claim 1 wherein the second clutch is supported permanently in the housing.

13. The drive arrangement of claim 1 further comprising a gear shift transmission connected to the output part of the second clutch.

14. The drive arrangement of claim 13 further comprising a torsional vibration damper between the takeoff shaft of the internal combustion engine and the gear shift transmission, the torsional vibration damper having an input part and an output part.

15. The drive arrangement of claim 14 wherein the output part of the torsional vibration damper forms the input part of the first clutch.

16. The drive arrangement of claim 14 wherein the output part of the torsional vibration damper is nonrotatably connected to the input part of the first clutch.