阅读说明：本技术 混合动力模块 (Hybrid module ) 是由 马西莫·梅罗拉 斯特凡·马科维亚克 罗伯特·迈尔 于 2020-01-27 设计创作，主要内容包括：本发明涉及一种混合动力模块,该混合动力模块包括壳体(3)和电机(2),壳体具有容纳在壳体中的复式离合器(4),该复式离合器具有第一离合器装置(5)、第二离合器装置(6)和第三离合器装置(7)以及处于轴向端部位置的支承件(13),电机以轴向平行的方式布置在壳体(3)上并且经由传递扭矩的齿轮连接件(9)联接至复式离合器(4)。壳体(3)借助于在轴向和径向上邻接支承件(13)的壳体覆盖件部分(14)或借助于连接在下游的传动装置的在轴向上邻接支承件(13)的传动装置壁(23)轴向地封闭。待输送至复式离合器(4)的润滑剂能够经由至少一个供给管道径向地或经由至少一个供给管道轴向地输送至支承件(13)。(The invention relates to a hybrid module comprising a housing (3) having a multiple clutch (4) accommodated therein, having a first clutch device (5), a second clutch device (6) and a third clutch device (7) and a bearing (13) in an axial end position, and an electric machine (2) which is arranged on the housing (3) in an axially parallel manner and is coupled to the multiple clutch (4) via a torque-transmitting gear connection (9). The housing (3) is axially closed by means of a housing cover part (14) which axially and radially adjoins the support (13) or by means of a transmission wall (23) of a downstream transmission which axially adjoins the support (13). The lubricant to be supplied to the multiple clutch (4) can be supplied to the support (13) radially or axially via at least one supply line.)

1. Hybrid module comprising a housing (3) with a multiple clutch (4) accommodated therein, having a first clutch device (5), a second clutch device (6) and a third clutch device (7) and a support (13) in an axial end position, and an electric machine (2) which is arranged in an axially parallel manner on the housing (3) and is coupled to the multiple clutch (4) via a torque-transmitting gear connection (9), wherein the housing (3) is axially closed by means of a housing cover part (14) which axially and radially adjoins the support (13) or by means of a transmission wall (23) of a transmission connected downstream which axially adjoins the support (13), wherein lubricant to be delivered to the multiple clutch (4) can be radially closed via at least one supply conduit Or axially to the support (13) via at least one supply duct.

2. Hybrid module according to claim 1, characterized in that radial holes forming the supply duct are provided on the housing cover portion (14) axially closing the housing (3) or on a housing wall portion axially arranged adjacent to the transmission wall (23), which radial holes open into radial holes (17) arranged on the support (13).

3. Hybrid module according to claim 1, characterized in that a feed pipe forming the feed conduit and leading to a radial hole provided on the support is provided on the housing cover part.

4. Hybrid module according to claim 3, wherein a radial portion (18) of the support (13) engages in a recess (19) of the housing cover part (14) delimited radially outwards via a cover edge part (14), wherein the supply pipe (16) extends through the recess (19) and through a hole in the cover edge part (20).

5. Hybrid module according to claim 1, characterized in that an axial hole (25) is provided in the transmission wall (23) which leads to an axial hole (26) provided in the support (13).

6. Hybrid module according to claim 5, characterised in that the axial hole (26) is incorporated into a radial hole (27) leading to the output shaft (8) of the double clutch (4).

7. Hybrid module according to any one of the preceding claims, characterized in that a dry or wet-operated damping device is provided in the housing (3).

8. Hybrid module according to any one of the preceding claims, characterized in that a centrifugal pendulum is provided in the housing (3).

Technical Field

The invention relates to a hybrid module comprising a housing and an electric machine, the housing having a multiple clutch accommodated in the housing, the multiple clutch having a first clutch device, a second clutch device and a third clutch device and a bearing in an axial end position.

Background

In modern motor vehicles, hybrid modules are increasingly used, which offers the possibility of being able to operate the vehicle by means of an internal combustion engine or by means of an electric machine. A dual clutch comprising three independent clutch devices, commonly referred to as K0, K1 and K2, enables a corresponding coupling operation with the downstream transmission. The K0 clutch enables the internal combustion engine to be coupled or decoupled from the drive train. This means that the torque transmission from the combustion engine to the transmission or from the electric machine to the transmission can be controlled. The basic structure of such a hybrid module is known.

There is always a need to design such hybrid modules as compact as possible in order to make optimum use of the usually small available space or to be able to integrate the hybrid module, wherein the operation of the hybrid module and in particular the supply of lubricant must of course be ensured at the same time.

The invention is therefore based on the problem of specifying a comparatively improved hybrid module.

Disclosure of Invention

In order to solve this problem, according to the present invention, there is provided a hybrid module including a housing having a multiple clutch accommodated therein and a motor, the multiple clutch has a first clutch device, a second clutch device and a third clutch device and a bearing in an axial end position, the electric machines are arranged in an axially parallel manner on the hybrid motor housing and are coupled to the multiple clutch via a torque-transmitting gear connection, wherein the housing is axially closed by means of a housing cover part which axially and radially adjoins the support or by means of a transmission wall of a downstream transmission which axially adjoins the support, wherein the lubricant to be delivered to the dual clutch can be delivered to the support radially via the at least one supply conduit or axially via the at least one supply conduit.

On the one hand, the hybrid module according to the invention is very compact, so that the hybrid module can be integrated even with a small installation space due to its compactness. At the same time, however, the hybrid module also offers the possibility of being able to transmit the required torque and of ensuring a corresponding lubricant supply for the multiple clutch. The electric machine is arranged on the housing axially parallel and radially outwardly offset with respect to the clutch-side output shaft, i.e. is fastened directly to the housing. In order to be able to transmit torque from the electric motor to the output shaft, a gear connection is provided via which the electric motor is coupled to the multiple clutch. The gear connection comprises a first gear wheel which is driven via a motor and meshes with a second gear wheel arranged on the clutch side. This means that there are two specific joints between the housing and the axially parallel electric machine, i.e. on the one hand, via which the gear connection can transmit the required torque, and on the other hand, the housing-side connection of the electric machine is directly connected to the hybrid module housing and is tightened there accordingly.

A further engagement, namely an engagement with respect to the axial end of the housing, is provided in the hybrid module housing, which can be designed in different ways. According to a first variant, the housing can be closed axially via a housing cover part of the hybrid module housing itself, which for this purpose is connected axially and radially to a bearing of the double clutch arranged coaxially with the output shaft axis. The housing cover portion is screwed firmly to the support via a series of connection screws. This results in a closed, compact system due to the axial and radial nesting of the support and housing cover portions and their direct connection. In this case, the lubricant is supplied radially to the bearings, usually steel bearings, of the double clutch after the transmission is flanged on and coupled to the clutch output shaft, as viewed in the axial direction.

Alternatively, the housing closure of the hybrid module housing can also take place by means of a transmission wall of the downstream transmission itself, i.e. the transmission wall is actually integrated on the hybrid module side. The transmission wall is located axially directly downstream of the support or steel support so that the transmission wall can be screwed directly to the support and no internal screw connection between the housing and the steel support is required. This configuration is particularly advantageous for reducing the axial installation space, since finally the wall thickness of the housing cover part can be dispensed with, since no wall thickness is required for housing closure. However, this also means that the housing of the hybrid module can be designed in a significantly reduced and simpler manner, also in terms of weight. In this case the supply of lubricant may take place radially as already described in the first variant, but in this case it may also preferably take place axially, i.e. via the transmission wall itself, as will be discussed below.

Overall, the hybrid module according to the invention is characterized by a high degree of compactness, but ensures all functions and also provides a corresponding lubricant supply.

Starting from the first variant of the invention with a housing cover part closing off the housing axially, in a further development of the invention, a radial bore forming the supply duct can be provided on the housing cover part closing off the housing axially and leading to a radial bore provided on the support. In this case, the supply of lubricant to the bearings is ensured via the radial bores, from which the lubricant is further distributed to be supplied to the three individual clutch devices. The radial bores are open on the outside of the housing cover part, so that corresponding lubricant supply ducts can be connected to the radial bores.

Within the scope of the second variant of the invention, it is also conceivable to supply lubricant radially with the housing closed via the transmission wall. In this case, the respective housing wall portion of the housing, which is located axially adjacent to the transmission wall, will be provided with a respective radial bore through which lubricant can flow.

As an alternative to forming the lubricant supply line via a radial bore formed on the housing cover part, it is also conceivable to provide a supply tube forming the supply line and leading to a radial bore provided on the support. This embodiment is advantageous if the housing wall sections are designed to be as small as possible, in particular for weight saving, and the lubricant can be supplied via such a supply pipe which is significantly lighter than the corresponding housing section. This supply pipe opens into a corresponding radial bore on the support side, i.e. again directly on the support itself.

It is conceivable that a radial portion of the support engages in a recess of the housing cover part which is delimited radially outwards via a cover edge part, wherein the supply pipe extends through the recess and through a hole in the cover edge part. The cover is thus correspondingly reduced, in particular for weight reduction, and is provided with a recess through which the supply pipe extends. One end of the supply pipe opens into a corresponding radial hole of the support and the other end passes through a hole in the edge portion of the cover, which hole closes the recess radially on the outside, wherein the connection of the supply pipe to the corresponding supply line also takes place in this region.

If a transmission wall is provided via which the axial housing closure takes place, there is preferably an axial lubricant supply to the support, to which the transmission wall is correspondingly screwed. For this purpose, the transmission wall is provided with a suitable axial bore which opens into an axial bore provided on the bearing, wherein the bearing-side axial bore can also be incorporated into a radial bore which opens into the output shaft of the double clutch, depending on how the lubricant supply or the downstream lubricant path is specifically designed. In this case, the axial lubricant supply takes place directly from the transmission, which is particularly simple, since the bearing and the transmission wall bear in each case axially flat against one another, so that the lubricant supply from the transmission can be ensured by means of two simple, mutually engaging axial bores.

Furthermore, a damping device for damping corresponding torque fluctuations may be provided in the housing itself, wherein such a damping device may be operated dry or wet. A centrifugal pendulum may also be integrated in the housing.

Drawings

The invention is explained below on the basis of exemplary embodiments with reference to the drawings. The figures are schematic representations in which:

fig. 1 shows a schematic view of a first variant of a hybrid module according to the invention;

fig. 2 shows a detail of the hybrid module from fig. 1 in the region of a dual clutch;

FIG. 3 illustrates a perspective view of the hybrid module of FIG. 1 showing a lubricant supply;

FIG. 4 illustrates a perspective view of a hybrid module housing;

FIG. 5 shows a partial view of a second embodiment of a hybrid module according to the present invention;

fig. 6 shows a perspective view of the hybrid module according to fig. 5;

FIG. 7 shows an enlarged detail view of region VII in FIG. 5; and

fig. 8 shows a perspective view of a second variant of the hybrid module housing.

Detailed Description

Fig. 1 shows a hybrid module 1 according to the invention with an electric machine 2. The hybrid module 1 comprises a housing 3 in which a multiple clutch 4 is provided, which comprises a first clutch device 5, which is also commonly referred to as the K0 clutch, a second clutch device 6, which is commonly referred to as the K1 clutch, and a third clutch device 7, which is commonly referred to as the K2 clutch. The basic structure of such a double clutch and its function are known. The K0 clutch is used for coupling and decoupling the internal combustion engine connected to the left side of the hybrid module 1 and for connecting the electric machine 2. Via the double clutch 4, an output shaft arrangement 8, which is only partially shown here, can be supplied with a corresponding torque, which is transmitted from the output shaft arrangement to the right-hand transmission.

As shown in fig. 1, the electric machine 2 is arranged radially outwardly biased, but screwed directly onto the housing 3 of the hybrid module 1. In order to be able to transmit torque, a gear connection 9 is provided, which comprises a gear wheel 10 directly connected to the output of the electric machine 2, which meshes with a hybrid module-side gear wheel 11, which is rotatably mounted on a support 13, typically a steel support, by means of corresponding rolling bearings 12.

Referring in particular also to fig. 3, the housing 3 has a housing cover part 14, which, referring to the sectional view according to fig. 1, adjoins the support 13 in the radial and axial direction, i.e. both the housing cover part and the support are nested in the axial and radial direction. The housing cover part 14 is firmly connected to the support 13 via various connection screws 15, wherein, referring to fig. 3, the axial closure of the housing 3 is provided by both the inner support 13 and the housing cover part 14 radially surrounding the housing.

In this embodiment, the lubricant for supplying the clutch devices 5, 6, 7 is supplied from the radially outer side of the housing 3. In the example shown, with reference to fig. 3, a supply duct 16 is provided which leads to a radial hole 17 of a radial portion 18 of the support 13. The radial portion 18 engages to some extent in a recess 19 in the housing cover portion 14, which recess 19 is closed radially outwards via a cover edge portion 20. The supply pipe 16 extends through this cover rim portion 20 so that the supply pipe can be connected to a radially outer connection 21.

By means of the radial bores in the radial portion 18 of the bearing 13, the lubricant enters the interior of the housing and thus the region of the double clutch 4, where it can be guided directly into the desired coupling region via suitable channel portions.

However, instead of the design with the supply pipe 16 shown in fig. 3, in the case of a closed housing cover part 14 it is also conceivable to realize the supply line via a radial bore which is open radially on the outside of the housing cover part 14 and communicates radially on the inside with a corresponding radial bore 17 of the support 13.

Finally, fig. 4 shows a perspective view of the housing 3, wherein the housing has a housing cover part 14 and a dome-shaped receiving space 22 (see also fig. 1) formed thereon, in which the gear connection or the gear 10 is received, from which torque is transmitted.

The first embodiment variant of the hybrid module according to the invention shown in fig. 1 to 4 is characterized by a high degree of compactness, but can transmit the required torque and ensure lubricant supply. The specific difference lies in the two joints between the electric machine 2 and the housing 3 of the hybrid module 1, wherein one joint is realized via a gear connection 9, by means of which the required torque can be transmitted. A second joint is necessary for connecting the electric machine 2 to the hybrid module housing 3, wherein the electric machine 2 is screwed directly onto the housing 3. The electric machine 2 is located above the double clutch 4, i.e. above the triple clutch in this case, as viewed in part.

Inside the hybrid module housing, a further engagement is located, namely the engagement of the housing 3 or the housing cover part 14 with a screw connection via a screw 15 to the carrier 13 of the multiple clutch 4. The joint enables the construction of an independent, compact system. In the exemplary embodiment shown, the necessary lubricant supply takes place via the supply pipe 16, but may alternatively also take place via a direct radial bore in the housing cover part 14. Finally, a dry or wet-operated damper and an integrated centrifugal pendulum are possible.

Fig. 5 to 8 show a second modification of the present invention. In this embodiment of the invention, which makes it possible to shorten the installation space in the axial direction, the housing 3 is axially closed by means of a transmission wall 23, which, see the schematic illustration according to fig. 4, is screwed directly to the support 13 by means of various screw connections 24, which are only shown in principle in fig. 7. The basic structure of the hybrid module 1 according to fig. 5 to 7 is similar to that of the hybrid module of fig. 1, i.e. the electric machine 2 is also directly attached to the housing 3, wherein a double clutch 4 with three separate clutch devices 5, 6, 7 is again provided in the housing 3. The transmission of torque from the electric machine 2 to the double clutch 4 takes place here again via the gear connection 9 with the gears 10, 11, wherein the gear 11 is in turn mounted on a carrier 13 via a rolling bearing 12.

However, the support 13 is axially shorter than in the design according to the first variant of fig. 2, since in this variant the housing is closed via the transmission wall 23.

The lubricant is here supplied axially, for which purpose, see fig. 7, an axial bore 25 indicated in fig. 7 provided in the transmission wall 23 merges into an axial bore 26 in the support 13, wherein the axial bore 26 optionally merges into a radial bore 27 in the example shown. This means that the lubricant is here supplied directly from the transmission, rather than radially from the outside as in variant 1, but this is also possible in principle in this variant according to fig. 5 to 8.

Here, the motor 2 is fastened directly to the housing 3 by means of a screw connection 28 as indicated in fig. 7. In this embodiment, the housing 3 itself is not screwed to the support 13; but is screwed to the transmission wall 23 only by means of the screw connection 25.

Since the housing 3 according to this second modification does not have a housing cover part, the housing 3 can have a simpler and reduced design, see fig. 8. As can be observed, the housing 3 according to fig. 8 does not have a radially inwardly drawn cover part like the housing 3 of the first variant, in this regard see fig. 4.

In the embodiment according to fig. 5 to 8, the transmission wall 23 is directly connected to or integrated with the support 13. Due to this direct connection, there is no need to screw the housing 3 to the support 13 inside the hybrid module 1, which provides a potential saving in axial installation space. By using the transmission wall 23 of the downstream transmission, the housing 3 itself as well as the support 13 can also be optimized in terms of weight and size, and therefore ultimately also in terms of costs, since the support 13 can also be made shorter, since no corresponding cover part is provided on the housing side. The lubricant is preferably supplied axially directly from the transmission wall, but may be supplied radially if necessary.

Here, it is also conceivable to integrate dry or wet damping devices or centrifugal pendulums.

List of reference numerals

1 hybrid power module

2 electric machine

3 case

4-compound clutch

5 Clutch device

6 clutch device

7 Clutch device

8 output shaft assembly

9 Gear connecting piece

10 Gear

11 Gear

12 rolling bearing

13 support member

14 housing cover part

15 connecting screw

16 supply pipe

17 radial hole

18 radial part

19 recess

20 cover edge portion

21 connecting piece

22 installation space

23 wall of transmission

24 screw connector

25 screw connector

26 axial hole

27 radial hole

28 screw connector