Motor vehicle having a drive train with a laterally arranged internal combustion engine

Patent metadata

Field	Value
Publication number	US-9724990-B2
Application number	US-201213488688-A
Country	US
Kind code	B2
Filing date	Jun 5, 2012
Priority date	Jun 9, 2011
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

A motor vehicle ( 10 ) has a drive train in the region of a front axle. A body of the motor vehicle has connection points ( 1, 2, 3 ) for a laterally arranged internal combustion engine, a vehicle transmission ( 15 ) and a torque plate of a motor vehicle ( 10 ) that can be driven exclusively by the internal combustion engine. The connection points ( 1, 2, 3 ) also are connection points for a hybrid drive train ( 11 ). The vehicle uses a modular design principle and can be equipped with differently designed drive systems, including conventional drive exclusively by an internal combustion engine and hybrid drive, without having to make structural modifications. The hybrid drive train may be a serial hybrid or a parallel hybrid.

First claim

What is claimed is:

1. A motor vehicle comprising: a body with first, second and third connection points disposed at fixed specified positions in proximity to an axle of the vehicle and configured for selectively supporting one of:
a conventional drive train having an internal combustion engine as an exclusive drive power source for the motor vehicle and a transmission arranged laterally of the internal combustion engine, the conventional drive train having no traction motor, the internal combustion engine of the conventional drive train being supported at the first connection point of the vehicle, the transmission of the conventional drive train being supported at the second connection point of the vehicle and the third connection point of the vehicle being connected to a location on the conventional drive train to receive torque introduced from the conventional drive train to the vehicle; and
a hybrid drive train in a region of the vehicle axle, the hybrid drive train having a laterally arranged internal combustion engine that is smaller than the internal combustion engine of the conventional drive train and that is supported at the first connection point, the hybrid drive train further having an electric traction motor supported at the second connection point, and a vehicle transmission for the hybrid drive train supported at the third connection point,
whereby the first, second and third connection points at the fixed specified positions of the vehicle enable the body of the vehicle to support either the conventional drive train or the hybrid drive train.

2. The motor vehicle of claim 1 , wherein the vehicle body has first and second longitudinal members and a crossmember between the longitudinal members, the first and second connection points being provided respectively on the first and second longitudinal members and the third connection point being on the crossmember.

3. The motor vehicle of claim 2 , wherein the connection points and the hybrid drive train are in proximity to a front end of the motor vehicle.

4. The motor vehicle of claim 3 , wherein the transmission of the hybrid drive train has a spur gear stage with two cardan shafts arranged behind the internal combustion engine relative to a direction of travel of the motor vehicle and are connected to the transmission, for driving wheels of a front vehicle axle of the vehicle.

5. The motor vehicle of claim 2 , wherein the third connection point is a torque plate that receives torque introduced into the body by the hybrid drive train.

6. The motor vehicle of claim 1 , wherein the hybrid drive train has a serial hybrid.

7. The motor vehicle of claim 6 , wherein the serial hybrid has the laterally arranged internal combustion engine, a generator, the electric traction motor and the transmission mechanically coupled to one another, the internal combustion engine and the generator defining a torque coupled first subassembly and the traction motor and the transmission defining a torque coupled second subassembly, with torque decoupling between the first subassembly of the internal combustion engine and the generator with respect to the second subassembly of the electric motor and the transmission.

8. The motor vehicle of claim 1 , wherein the transmission of the hybrid drive train has a spur gear stage with two cardan shafts arranged in front of or behind the internal combustion engine relative to a direction of travel of the motor vehicle and are connected to the transmission of the hybrid drive train, for driving the wheels of a vehicle axle of the vehicle.

9. A motor vehicle, comprising: a body with first, second and third connection points disposed at fixed specified positions in proximity to an axle of the vehicle and configured for selectively supporting one of:
a conventional drive train having an internal combustion engine as an exclusive drive power source for the motor vehicle and a transmission arranged laterally of the internal combustion engine, the conventional drive train having no traction motor, the internal combustion engine of the conventional drive train being supported at the first connection point of the vehicle, the transmission of the conventional drive train being supported at the second connection point of the vehicle and the third connection point of the vehicle being connected to a location on the conventional drive train to receive torque introduced from the conventional drive train to the vehicle; and
a hybrid drive train in a region of the vehicle axle, the hybrid drive train having a laterally arranged internal combustion engine that is smaller than the internal combustion engine of the conventional drive train and that is supported at the first connection point, the hybrid drive train further having an electric traction motor supported at the second connection point, and a vehicle transmission for the hybrid drive train supported at the third connection point, wherein the hybrid drive train has a parallel hybrid,
whereby the first, second and third connection points at the fixed specified positions of the vehicle enable the body of the vehicle to support either the conventional drive train or the hybrid drive train.

10. The motor vehicle of claim 9 , wherein the parallel hybrid has an internal combustion engine, an electric traction motor and a transmission, with mechanical coupling and torque coupling of the internal combustion engine, the electric traction motor and the transmission.

11. The motor vehicle of claim 10 , wherein the parallel hybrid has an electrical machine that can be operated as the electric traction motor and as a generator.

Assignees

• Hoermandinger Klaus
• Henger Nikolai
• Porsche Ag

Inventors

• Hoermandinger Klaus
• Henger Nikolai

Classifications

• B60Y2200/92

  Hybrid vehicles · CPC title

• B60K5/12

  Arrangement of engine supports · CPC title

• B60K5/04 Primary

  with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle · CPC title

• B60K6/20

  the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs · CPC title

• B60K5/1216

  characterised by the location of the supports relative to the motor or to each other (B60K5/1225 takes precedence) · CPC title