HYBRID MODULE WITH AN AXIALLY PARALLEL E-MACHINE AND VEHICLE COMPRISING SAME

Abstract

A hybrid module for arranging between an internal combustion engine, an electric machine and a transmission, wherein the hybrid module has an input shaft which is connectible to a torsional damper mounted at the internal combustion engine, wherein a starting element is provided, wherein a transmission shaft is connectible to the output side of the starting element, wherein the electric machine is arranged axially parallel to the input shaft, and wherein the electric machine is connected to the starting element by a traction mechanism drive, characterized in that a bearing plate is provided which is arranged directly adjacent the torsional damper, in that a disconnect clutch is provided between the input shaft and the starting element, and in that the disconnect clutch is constructed as dog clutch. The invention is further directed to a motor vehicle having such a hybrid module.

Claims

1. A Hybrid module for arranging between an internal combustion engine, and an electric machine and a transmission, wherein the hybrid module has an input shaft which is connectible to a torsional damper mounted at the internal combustion engine, wherein a starting element is provided, wherein a transmission shaft is connectible to the output side of the starting element, wherein the electric machine is arranged axially parallel to the input shaft, wherein the electric machine is connected to the starting element by a traction mechanism drive, and wherein a bearing plate is provided which is arranged directly adjacent the torsional damper, in that a disconnect clutch is provided between the input shaft and the starting element, and in that the disconnect clutch is constructed as dog clutch.

2. The Hybrid module according to claim 1, wherein the traction mechanism drive is connected to the housing of the starting element.

3. The Hybrid module according to claim 1, wherein the starting element is formed as torque converter.

4. The Hybrid module according to claim 1, wherein the housing of the starting element is formed on the drive side as a closed wet space.

5. The Hybrid module according to claim 1, wherein a seal is provided between the bearing plate and the input shaft in order to seal a further wet space from the dry space.

6. The Hybrid module according to claim 1, wherein a bearing is provided between the bearing plate and the input shaft in order to support the input shaft at least in a radial direction.

7. The Hybrid module according to claim 1, wherein the actuating means of the disconnect clutch are arranged at the bearing plate.

8. The Hybrid module according to claim 1, wherein a housing of the hybrid module is formed integral with a housing of the electric machine.

9. The Hybrid module according to claim 1, wherein a housing of the hybrid module is constructed separate from a housing of the electric machine, and these housings are connectable to one another.

10. The Hybrid module according to claim 9, wherein the relative position of the housings of the hybrid module and of the electric machine is variable via adjusting means in order to tension the traction mechanism drive.

11. The Hybrid module according to claim 1, wherein the housing of the hybrid module is formed separate from a housing of the transmission.

12. The Hybrid module according to claim 1, wherein the housing of the hybrid module is formed integral with a housing of the transmission.

13. A Motor vehicle with a hybrid drive having a hybrid module according to claim 1.

14. The Hybrid module according to claim 6, wherein the input shaft is supported in the radial and axial directions.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The invention will be explained in more detail in the following with reference to the figures. Like or similar elements are designated with consistent reference numerals. In particular, the figures show:

[0048] FIG. 1 a schematic construction of an embodiment example;

[0049] FIG. 2 an embodiment example of a hybrid module;

[0050] FIG. 3 a further embodiment example of a hybrid module.

DETAILED DESCRIPTION OF THE DISCLOSED EMBODIMENTS

[0051] FIG. 1 shows a schematic construction of a portion of a powertrain with a hybrid module H according to the invention, only one half of which is shown in the further figures.

[0052] The hybrid module H is connected to an internal combustion engine, not shown, to be arranged on the left-hand side with reference to FIG. 1. The connection is carried out via a torsional damper 1 which is arranged in a dry space OR1. The dry space OR1 is separated from the interior of the hybrid module H via a bearing plate 4.

[0053] A starting element 2 containing a wet space OR2 is provided in the hybrid module H.

[0054] Further, the hybrid module H is connected to an electric machine EM via a traction mechanism drive 3. The electric machine EM is arranged axially parallel to the hybrid module H. The area in which the traction mechanism drive 3 is arranged constitutes a further wet space OR3.

[0055] The hybrid module H is further connected to a transmission G.

[0056] FIG. 2 shows a first embodiment example of a hybrid module H.

[0057] The torsional damper 1 connected to an internal combustion engine is connected via a spline to an input shaft 5 so as to be fixed with respect to rotation relative to it. The input shaft 5 is further connected to the input side of the starting element 2.

[0058] In this embodiment example, the starting element 2 is formed as a hydrodynamically cooled clutch. The input shaft 5 is connected to the inner plate carrier of the hydrodynamically cooled clutch which constitutes the input side of the starting element 2. The housing 7 of the starting element 2 which also constitutes the outer plate carrier in this case is connected to an output shaft 6 which is subsequently connected to, or is a part of, the transmission G, although this is not shown.

[0059] A part, in particular a sprocket, of a traction mechanism drive 3 is fixedly mounted at the housing 7 of the starting element 2. In principle, it is also possible that it is formed integral with the housing 7. The electric machine EM is directly connected to the output side of the starting element 2 via the traction mechanism drive 3.

[0060] The housing 7 also has an axial portion which extends coaxial to the input shaft 5 and which also partially overlaps the bearing plate 4 in axial direction. A bearing 9 which supports the starting element 2 in the hybrid module H is provided at the axial portion.

[0061] In addition to bearing 9, a third seal 8.3 is provided between the bearing plate 4 and the axial portion, which seal 8.3 seals the further wet space OR3 relative to an intermediate space ZR. In the depicted embodiment example, the third seal 8.3 is formed as a radial sealing ring operative at both sides. In the depicted example, the bearing 9 is arranged on the transmission side of the third seal 8.3. A reverse arrangement at the drive side in which the bearing 9 is arranged in the intermediate space is also possible.

[0062] A first seal 8.1 is provided between the input shaft 5 and the axial portion coaxially surrounding the input shaft 5. A wet space OR1 in the starting element 2 is sealed relative to the intermediate space ZR by means of the first seal 8.1.

[0063] Further, a second seal 8.2 is provided between the bearing plate 4 and the input shaft 5. The intermediate space ZR is sealed relative to the dry space OR1 by means of the second seal 8.2.

[0064] In the area of the intermediate space ZR or between the first seal 8.1 and the second seal 8.2, the input shaft 5 has at least one discharge opening 10 through which leakage oil located in the intermediate space ZR is discharged inward, preferably in direction of the transmission G.

[0065] A further embodiment example of a hybrid module H whose basic arrangement corresponds to FIG. 2 is shown in FIG. 3.

[0066] The starting element 2 in FIG. 3 is formed as a torque converter. An impeller of the torque converter is fixedly connected to the housing 7 of the starting element 2 and constitutes the input side. A stator 14 is fixedly held via a transmission-side opening of the housing 7 by means of a connection, not shown, to a housing of the hybrid module H or of the transmission G. The turbine 13 is connectible, for example, via a spline, to an output shaft 6, not shown in FIG. 3, or a transmission shaft so as to be fixed with respect to rotation relative to it and constitutes the output side of the starting element 2.

[0067] Further, a lockup clutch is shown schematically at the turbine 13. A direct connection between the input side and output side can be produced by means of this lockup clutch.

[0068] The housing 7 of the starting element 2 is likewise connected to a traction mechanism drive 3 analogous to FIG. 2 which, in this embodiment example, produces a connection of the electric machine EM to the input side.

[0069] In this example, a disconnect clutch 11 is provided between the input shaft 5 and the driving element 2. The disconnect clutch 11 shown here is formed as a dog clutch and, via a sliding sleeve, produces a connection between an outer toothing provided on the input shaft 5 and an inner toothing provided at the housing 7 of the starting element 2. Alternatively, other constructions of a dog clutch, as well as other clutches, are also possible.

[0070] The actuating means 12 of the disconnect clutch 11 are mounted at the bearing plate 4 to axially displace the sliding sleeve.

[0071] Since the torque converter in the embodiment example shown in FIG. 3 has a completely closed housing 7 on the drive side, the seal system can be constructed in a simpler manner compared to FIG. 2. A seal 8 and a bearing 9 are provided between the bearing plate 4 and the input shaft 5.

[0072] Further, the invention is also not limited to the embodiments described above. As has already been mentioned, advantageous features can also be provided in isolation or combined with one another.