Hybrid module

Patent metadata

Field	Value
Publication number	US-10737567-B2
Application number	US-201816157298-A
Country	US
Kind code	B2
Filing date	Oct 11, 2018
Priority date	Oct 27, 2017
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

A hybrid module includes a housing, an annular stator, first and second annular rotors, and a first bearing. The housing is arranged for fixing to a combustion engine and a multi-speed transmission of a vehicle. The annular stator is fixed to the housing. The first annular rotor is disposed on a first axial side of the stator. The second annular rotor is disposed on a second axial side of the stator, opposite the first axial side. The first bearing is installed between the first annular rotor or the second annular rotor, and the annular stator. In an example embodiment, the first annular rotor or the second annular rotor includes an annular magnet. In an example embodiment, the first annular rotor is fixed to the second annular rotor.

First claim

What is claimed is:

1. A hybrid module, comprising:
a housing arranged for fixing to a combustion engine and a multi-speed transmission of a vehicle;
an annular stator fixed to the housing;
a first annular rotor disposed on a first axial side of the annular stator and comprising a clutch carrier portion;
a second annular rotor disposed on a second axial side of the annular stator, opposite the first axial side;
a first bearing installed between the first annular rotor or the second annular rotor, and the annular stator;
a drive plate arranged for connection to a crankshaft of the combustion engine;
a clutch pack including at least one first clutch plate drivingly engaged with the clutch carrier portion and at least one second clutch plate drivingly engaged with the drive plate; and,
a piston plate for compressing the at least one first clutch plate and the at least one second clutch plate to form a connection between the clutch carrier portion and the drive plate.

2. The hybrid module of claim 1 wherein the first annular rotor or the second annular rotor includes an annular magnet.

3. The hybrid module of claim 1 wherein the first annular rotor is fixed to the second annular rotor.

4. The hybrid module of claim 1 further comprising a hub arranged for driving engagement with an input shaft of the multi-speed transmission, the hub being fixed to the first annular rotor and the second annular rotor.

5. The hybrid module of claim 4 wherein the hub includes a first tubular protrusion extending in a first axial direction, and the second annular rotor includes a second tubular protrusion extending in a second axial direction, opposite the first axial direction.

6. The hybrid module of claim 1 further comprising a hub arranged for driving engagement with an input shaft of the multi-speed transmission, the hub and the first annular rotor or the second annular rotor being formed of a same piece of material.

7. The hybrid module of claim 6 wherein:
the hub and the first annular rotor are formed of the same piece of material;
the hub includes a first tubular protrusion extending in a first axial direction; and,
the second annular rotor includes a second tubular protrusion extending in a second axial direction, opposite the first axial direction.

8. The hybrid module of claim 1 wherein the first annular rotor includes a tubular protrusion and the first bearing is disposed on the tubular protrusion.

9. The hybrid module of claim 1 further comprising a hub arranged for driving engagement with an input shaft of the multi-speed transmission, wherein:
the hub is fixed to the first annular rotor and the second annular rotor; and,
the piston plate is sealed to the hub.

10. The hybrid module of claim 1 wherein the first annular rotor includes a tubular portion and the piston plate is sealed to the tubular portion.

11. The hybrid module of claim 10 further comprising a backing plate and a plurality of springs; wherein:
the backing plate is sealed to the piston plate; and,
the plurality of springs are disposed in an axial space between the piston plate and the backing plate.

12. The hybrid module of claim 1 further comprising an engine hub and a second bearing, wherein:
the housing includes a radially extending portion;
the drive plate is fixed to the engine hub; and,
the second bearing is installed between the radially extending portion and the engine hub.

13. The hybrid module of claim 12 wherein the radially extending portion is sealed to the engine hub.

14. The hybrid module of claim 12 further comprising a damper including a cover plate and a flange, wherein:
the cover plate is arranged for fixing to the crankshaft of the combustion engine;
the engine hub includes a drive spline; and,
the flange includes a mating spline drivingly engaged with the drive spline.

15. The hybrid module of claim 14 wherein the damper includes a plurality of coil springs for transmitting a torque between the cover plate and the flange.

16. The hybrid module of claim 1 wherein the second annular rotor includes a tubular protrusion for driving engagement with an oil pump of the multi-speed transmission.

Assignees

• Schaeffler Technologies Ag

Inventors

• Steinberger Markus
• Smith David
• Steiner Micah

Classifications

• F16D25/10

  Clutch systems with a plurality of fluid-actuated clutches (arrangements or mounting of clutches in vehicles B60K17/00) · CPC title

• H02K7/006

  Structural association of a motor or generator with the drive train of a motor vehicle · CPC title

• H02K7/085

  radially supporting the rotary shaft at only one end of the rotor (H02K7/086, H02K7/09 take precedence) · CPC title

• B60K6/547

  the transmission being a stepped gearing · CPC title

• H02K7/088

  radially supporting the rotor directly · CPC title