Drive train of a hybrid motor vehicle

Patent metadata

Field	Value
Publication number	US-10350985-B2
Application number	US-201415021999-A
Country	US
Kind code	B2
Filing date	Jun 24, 2014
Priority date	Oct 9, 2013
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A drive train of a hybrid motor vehicle has an internal combustion engine (4), at least one first electric motor (16), at least a first clutch arrangement (6), at least one gear assembly (8), a storage arrangement and at least one auxiliary unit, such as an air conditioning compressor. The internal combustion engine (4) is connected drivingly to a first drive axle (14) via the clutch arrangement (6) and the gear assembly (8), and the first electric motor (16) is connected drivingly to a second drive axle (22) and to the storage arrangement and/or the auxiliary unit. The first electric motor (16) has a rotor shaft (36) with a first end (34) drivingly connected to the second drive axle (22) by a first switching unit (18) and a second end (38) drivingly connected to a crankshaft (28) of the internal combustion engine (4) by a second switching unit (24).

First claim

The invention claimed is:

1. A drive train of a hybrid motor vehicle comprising: an internal combustion engine ( 4 ) with a drive shaft ( 5 ), at least one first electric motor ( 16 ), at least one first clutch arrangement ( 6 ), at least one transmission arrangement ( 8 ), a storage arrangement ( 40 ) and at least one auxiliary unit ( 50 ), the internal combustion engine ( 4 ) being connected drivingly to a first drive axle ( 14 ) by means of the clutch arrangement ( 6 ) and the transmission arrangement ( 8 ), and the first electric motor ( 16 ) selectively being connected to one of a second drive axle ( 22 ) and to the storage arrangement ( 40 ) and/or the auxiliary unit ( 50 ), the first electric motor ( 16 ) having a rotor shaft ( 36 ) aligned parallel to the drive shaft ( 5 ) of the internal combustion engine ( 4 ) with the rotor shaft ( 36 ) having a first end selectively connected drivingly to the second drive axle ( 22 ) by means of a first selector unit ( 18 ) and at a second end selectively connected drivingly to a crankshaft ( 28 ) of the internal combustion engine ( 4 ) by means of a second selector unit ( 24 ).

2. The drive train of claim 1 , further comprising a second electric motor ( 30 ) drivingly connected to the first drive axle ( 14 ) by means of a third selector unit ( 32 ) downstream of the transmission arrangement ( 8 ).

3. The drive train of claim 1 , further comprising a second electric motor ( 30 ′) drivingly connected to an input shaft of the first clutch arrangement ( 6 ) upstream of the first clutch arrangement ( 6 ).

4. The drive train of claim 3 , further comprising a second clutch arrangement between the second electric motor ( 30 ′) and the first clutch arrangement ( 6 ).

5. The drive train of claim 1 , wherein the driving connection between the first electric motor ( 16 ) and the crankshaft ( 28 ) is established by a belt drive ( 26 ).

6. The drive train of claim 1 , wherein the at least one auxiliary unit comprises an air conditioning compressor.

7. The drive train of claim 1 , wherein the rotor shaft ( 36 ) of the first electric motor ( 16 ) is offset laterally from the drive shaft ( 5 ) of the internal combustion engine ( 4 ).

8. The drive train of claim 1 , wherein the first electric motor ( 16 ) is offset laterally from the internal combustion engine ( 4 ).

9. The drive train of claim 8 , wherein the first electric motor ( 16 ) and the internal combustion engine ( 4 ) are aligned with or forward of a front axle of the hybrid motor vehicle.

Assignees

• Porsche Ag

Inventors

• Heilfort Falk

Classifications

• B60Y2200/92

  Hybrid vehicles · CPC title

• Y02T10/6234

  Cross-Sectional Technologies · mapped topic

• B60K6/442

  Series-parallel switching type · CPC title

• B60Y2400/82

  Four wheel drive systems · CPC title

• B60K6/547

  the transmission being a stepped gearing · CPC title