TRIPLE CLUTCH DEVICE

Description

[0001] The present invention relates to a triple clutch device for arrangement in a drivetrain of a motor vehicle having a concentric double clutch device comprising an outer disk clutch for selective torque transmission between a first input-side disk carrier and a first output-side disk carrier and an inner disk clutch for selective torque transmission between a second input- side disk carrier, which is connected rotationally fixed to the first input-side disk carrier, and a second output side disk carrier, wherein additionally a separating clutch device is provided comprising a third disk clutch for selective torque transmission between a third input- side disk carrier and a third output-side disk carrier.

[0002] A triple clutch device is known from DE 10 2012 024 699 A1 for arrangement in a drivetrain of a motor vehicle between a drive unit and a transmission. The triple clutch device has on the one hand a parallel double clutch device, which is composed of two disk clutches arranged parallel to each other, thus arranged staggered in the axial direction. The first and second disk clutches have a mutual input-side disk carrier. The input-side disk carrier additionally forms the output- side disk carrier of a third disk clutch, via which a torque from a drive unit may be selectively transferred to the mutual input-side disk carrier of the first and second disk clutches. The actuating devices for the first, second, and third disk clutches are arranged on a support hub of the mutual, input-side disk carrier of the first and second disk clutches.

[0003] The known triple clutch device has proven itself with regards to a relatively compact structure; however, it has a relatively complex actuating device for the third disk clutch. In addition, the triple clutch device is less flexibly usable and is linked to increased assembly costs due to the compact structure.

[0004] It is therefore one object of the present invention to create a triple clutch device for arrangement in a drivetrain of a motor vehicle, preferably between a drive unit and a double clutch transmission, which has a concentric double clutch device in connection with a separating clutch device, wherein the triple clutch device is to be particularly compact and simply designed to achieve low assembly costs and flexible usability. In addition, the underlying object of the present invention is to create a drivetrain for a motor vehicle with such an advantageous triple clutch device .

[0005] This problem is solved by the features listed in Patent Claims 1 or 10. Advantageous embodiments of the invention are the subject matter of the subclaims.

[0006] The triple clutch device according to the invention is conceived of for arrangement in a drivetrain of a motor vehicle, preferably between a drive unit or an internal combustion engine on the one side and a transmission or a double clutch transmission on the other side. The triple clutch device has a concentric double clutch device. The concentric double clutch device thereby comprises an outer disk clutch for selective torque transmission between a first input-side disk carrier and a first output-side disk carrier and an inner disk clutch for selective torque transmission between a second input-side disk carrier and a second output side disk carrier, wherein the second input-side disk carrier of the inner disk clutch is connected rotationally fixed to the first input-side disk carrier of the outer disk clutch. As this is a concentric double clutch device, the disks or the disk set of the outer and inner disk clutches are arranged at least partially nested in the radial direction. In addition, the triple clutch device has a separating clutch device. This comprises a third disk clutch for selective torque transmission between a third input-side disk carrier and a third output-side disk carrier. In contrast to the known triple clutch device from DE 10 2012 024 699 Al, the third output-side disk carrier of the third disk clutch is not, however, designed as one piece with the disk carrier of one of both disk clutches of the double clutch device; instead, the third output-side disk carrier has an output side rotary driving contour, which is in rotary driving engagement with an input-side rotary driving contour on the first input-side disk carrier, wherein the third output-side disk carrier is arranged detachably on the first input-side disk carrier.

[0007] The triple clutch device according to the invention has the advantage that this may relatively easily assembled, particularly as only the third output- side disk carrier must be brought into rotary driving engagement with the input-side rotary driving contour on the first input-side disk carrier via the output-side rotary driving contour in order to connect the concentric double clutch device with the separating clutch device. In addition, the triple clutch device is also particularly flexibly usable. If, for example, the separating clutch device is not required within a drivetrain, then the separating clutch device may be easily detached from the concentric double clutch device, so that the remaining concentric double clutch device is usable as a simple, concentric double clutch device without the separating clutch device, in that the separating clutch device is exchanged, for example, with a simple driving plate with a corresponding output-side rotary driving contour.

[0008] In one preferred embodiment of the triple clutch device according to the invention, the output-side rotary driving contour and the input-side rotary driving contour are arranged farther outward in the radial direction than the second input-side disk carrier in order to achieve a most direct connection between the separating clutch device and the concentric double clutch device, in which an output hub of the separating clutch device on the one side and an input hub of the concentric double clutch device on the other side may be omitted, which would have to have been extensively brought into rotary driving connection with each other. Consequently, a particularly simple and compact design is achieved in this embodiment.

[0010] In another preferred embodiment of the triple clutch device according to the invention, the input-side rotary driving contour is provided on a tubular disk support section of the first input-side disk carrier. It is thereby preferred if the mentioned input-side rotary driving contour equally forms a rotary driving contour for disks of the outer disk clutch so that within the context of production, no increased expense must be pursued in order to create an additional input-side rotary driving contour deviating from the rotary driving contour for the disks. Alternatively or supplementally, the input-side rotary driving contour is designed as an inner toothing, into which the output-side rotary driving contour on the third output-side disk carrier may securely and quickly engage.

[0011] In another preferred embodiment of the triple clutch device according to the invention, the output-side rotary driving contour is designed as a toothing, preferably an outer toothing, wherein the latter may engage directly into the input-side rotary driving contour of the first input-side disk carrier designed as an inner toothing. In this context, an output-side rotary driving contour, in particular in the form of a dovetail toothing, has proven advantageous, in particular because this type of dovetail toothing may additionally engage behind the first input-side disk carrier or its disk support section from outside in the radial direction in order to prevent an expansion of the first output-side disk carrier caused by centrifugal force.

[0012] In one advantageous embodiment of the triple clutch device according to the invention, the concentric double clutch device and the separating clutch device have a mutual clutch input hub. Consequently, the concentric double clutch device does not have an input hub, which would have to be brought into rotary driving engagement with an output hub of the separating clutch device; instead, the mutual clutch input hub functions both for torque input into the separating clutch device and via the separating clutch device into the double clutch device, wherein the separating clutch device is in rotary driving engagement with the concentric double clutch device without an additional hub-hub connection. By this means, a particularly simple and space-saving design of the triple clutch device is achieved. In this embodiment, the separating clutch device is preferably arranged in the torque transmission path between the mutual clutch input hub and the first input-side disk carrier. Alternatively or supplementally, the mutual clutch input hub is designed as one piece to reduce the number of parts and the assembly costs.

[0013] In order to further increase the mentioned flexibility when using the triple clutch device or components thereof within a specific drivetrain, and to be able to actuate the third disk clutch particularly easily and directly, an actuating device, which is arranged on the mutual clutch input hub, is provided for the third disk clutch in one particularly preferred embodiment of the triple clutch device according to the invention. By this means, the third disk clutch is actuatable in a particularly direct way, and additionally, the separating clutch device, including the third disk clutch and the associated actuating device, may be particularly easily detached from the triple clutch device, if the triple clutch device is to be used as merely a simple concentric double clutch device without the separating clutch device.

[0014] In another preferred embodiment of the triple clutch device according to the invention, the actuating device for the third disk clutch has a displaceable actuating piston, which - as already previously mentioned is arranged on the mutual clutch input hub. In addition, it is preferred in this embodiment if the actuating device additionally has a pressure chamber to which hydraulic pressure may be applied, optionally, also a hydraulic counter pressure chamber, which is assigned to the displaceable actuating piston. It is hereby preferred if the pressure chamber, optionally, also the hydraulic counter pressure chamber, is at least partially delimited by the mutual clutch input hub, consequently it contacts the mutual clutch input hub. Corresponding conduits to the hydraulic pressure chamber, optionally, also to the hydraulic counter pressure chamber, may also be designed in the mutual clutch input hub in order to enable the supply of a hydraulic fluid through the mutual clutch input hub.

[0015] In order to facilitate a particularly simple assembly or disassembly of the separating clutch device to or from the concentric double clutch device, the clutch input hub, the actuating piston, and the third input-side disk carrier, optionally also a delimiting wall to delimit the pressure or counter pressure chamber, form a coherent module, which is detachable from the triple clutch device. The listed components of the module are thereby preferably arranged on each other in such a way that, when the module is considered alone, the clutch input hub, the actuating piston, and the third input-side disk carrier, optionally also the delimiting wall, are arranged captively on each other so that a particularly simple and fast assembly or disassembly of the module is possible .

[0016] Due to the concentrically designed double clutch device of the triple clutch device, a low axial installation length of the triple clutch device is already achieved, while the extension in the radial direction is increased. To prevent an even greater extension in the radial direction, a disk set of the third disk clutch is arranged aligned in the axial direction with a disk set of the outer disk clutch and/or with a disk set of the inner disk clutch in another advantageous embodiment of the triple clutch device according to the invention in order to use the installation space gained in the axial direction by the concentric configuration of the double clutch device. In this embodiment, it has proven advantageous if the disk set of the third disk clutch is arranged aligned with the disk set of the inner disk clutch in the axial direction, wherein it is additionally advantageous if the disk set of the third disk clutch is not arranged aligned with the disk set of the outer disk clutch in the axial direction in order to achieve a low extension in the radial direction in the area of the separating clutch device.

[0017] In another advantageous embodiment of the triple clutch device according to the invention, the first and the third input-side disk carriers are designed as outer disk carriers.

[0018] According to another advantageous embodiment of the triple clutch device according to the invention, the first and second input-side disk carriers are connected rotationally fixed to each other by means of a clutch support hub. It has hereby proven advantageous if a first actuating piston for actuating the outer disk clutch and a second actuating piston for actuating the inner disk clutch are arranged on the clutch support hub in order to create a concentric double clutch device in the form of an easy to assembly or disassemble double clutch module - similar to the separating clutch device.

[0019] In order to create a particularly secure radial support of the third output-side disk carrier on the one side and of the first input-side disk carrier in rotary driving engagement therewith on the other side, the third output-side disk carrier is supported or supportable in the radial direction on a stationary housing or housing cover of the triple clutch device in one particularly advantageous embodiment of the triple clutch device according to the invention, wherein for this purpose a roller bearing or deep grooved ball bearing is preferably provided between the third output-side disk carrier on the one side and the stationary housing of housing cover on the other side.

[0020] In another preferred embodiment of the triple clutch device according to the invention, the third output-side disk carrier is designed as an outer disk carrier. Thus, the third output-side disk carrier, designed as an outer disk carrier, preferably has a first radial section, on which the output-side rotary driving contour is provided, a disk support section, which follows the first radial section and which functions for accommodating the disks of the third disk clutch, and a second radial section, which follows the disk support section and via which the third output-side disk carrier is preferably supported or supportable on the stationary housing or housing cover, as this has been previously indicated with reference to one embodiment of the triple clutch device. Starting from the disk support section of the third output-side disk carrier, the first radial section preferably extends in the one radial direction, particularly preferably outward in the radial direction, while the second radial section preferably extends in the opposite radial direction, particularly preferably inward in the radial direction. A third output-side disk carrier, designed in this way, is particularly easy to produce, is lightweight, and space saving. [0021] In another advantageous embodiment of the triple clutch device according to the invention, the rotor of an electric machine and/or a means for achieving a rotary driving connection with the output side of an electric machine is arranged rotationally fixed on the first input-side disk carrier. Consequently, the triple clutch device is designed here in particular for use within the drivetrain input side of hybrid vehicles. The means for achieving the rotary driving connection with the output side of an electric machine is preferably a gear or sprocket.

[0022] The drivetrain according to the invention has a triple clutch device of the type according to the invention, which is preferably arranged between a drive unit, optionally an internal combustion engine, and a transmission, optionally a double clutch transmission.

[0023] In one advantageous embodiment of the drivetrain according to the invention, the mutual clutch input hub is in direct or indirect rotary driving connection with an output side of an internal combustion engine, while an output side of an electric machine is in rotary driving connection with the first input-side disk carrier so that this embodiment is a drivetrain for a hybrid vehicle.

[0024] The invention will be subsequently described in greater detail with the aid of an exemplary embodiment with reference to the appended drawings. As shown in:

Figure 1 a partial side view of one embodiment of a triple clutch device within the drivetrain of a hybrid vehicle in a sectional depiction, and Figure 2 the triple clutch device from Figure 1 after replacing the separating clutch device with a drive plate .

[0025] Figure 1 shows a triple clutch device 2 within a drivetrain of a motor vehicle, in this case, a hybrid vehicle. In the figure, the opposite axial directions 4, 6, the opposite radial directions 8, 10, and the opposite circumferential directions 12, 14 of triple clutch device 2 are indicated by corresponding arrows, wherein triple clutch device 2 has a central axis of rotation 16.

[0026] Within the drivetrain, triple clutch device 2 is arranged between an internal combustion engine 18 on the one side, indicated merely schematically, and a double clutch transmission 20 on the other side, wherein at least part of housing 22, a first transmission input shaft 24, and a second transmission input shaft 26 of the double clutch transmission 20 are indicated. First transmission input shaft 24 thereby extends in axial directions 4, 6 into substantially tubular second transmission input shaft 26, so that a radial nesting of both transmission input shafts 24, 26 may be discussed.

[0027] Triple clutch device 2 is arranged within a wet space 28 which is delimited in axial direction 6 and in radial direction 8 by housing 22 on the one hand, and in axial direction 4 by a housing cover 30 detachably fixed on housing 22, wherein housing 22 has a housing bell for this purpose. Triple clutch device 2 is composed substantially from a concentric double clutch device 32 and a separating clutch device 34, wherein the design of concentric double clutch device 32 will be subsequently described first. [0028] Concentric double clutch device 32 has an outer disk clutch 36 and an inner disk clutch 38, so that a disk set 40 of outer disk clutch 36 is arranged at least partially nested with a disk set 42 of inner disk clutch 38 in radial directions 8, 10.

[0029] Outer disk clutch 36 functions for selective torque transmission between a first input-side disk carrier 44 and a first output-side disk carrier 46. Inner disk clutch 38 correspondingly functions for selective torque transmission between a second input-side disk carrier 48 and a second output side disk carrier 50. Both input-side disk carriers 44, 48 are each designed as outer disk carriers, while both output-side disk carriers 46, 50 are each designed as inner disk carriers. Both input-side disk carriers 44, 48 each have a substantially tubular disk support section 52, 54 and a radial support section 56, 58 extending inward in radial direction 10 and connected to respective disk support sections 52, 54 in axial direction 6. Consequently, both input-side disk carriers 44, 48 are designed as substantially pot shaped and open in axial direction 4. Both input-side disk carriers 44, 48 are also connected rotationally fixed to each other, wherein this is not carried out directly in the depicted embodiment, but instead both input-side disk carriers 44, 48 are connected rotationally fixed by the ends of their radial support sections 56, 58, facing inward in radial direction 10, to a substantially tubular clutch support hub 60, via which both input-side disk carriers 44, 48 are indirectly connected rotationally fixed to each other.

[0030] Both disk clutches 36, 38 are hydraulically actuatable. For this purpose, a first actuating piston 62, displaceable in axial directions 4, 6, is assigned to disk set 40 of outer disk clutch 36 and a second actuating piston 64, displaceable in axial directions 4, 6, is assigned to disk set 42 of inner disk clutch 38. Both actuating pistons 62, 64 are arranged on clutch support hub 60, supported on clutch support hub 60 in radial directions 8, 10 in the embodiment depicted. A pressure chamber 66, 68, to which a hydraulic fluid may be applied, and a counter pressure chamber 70, 72, which may be filled with hydraulic fluid, are thereby respectively assigned to both actuating pistons 62, 64.

Both pressure chambers 66, 68 and also counter pressure chambers 70, 72 may be filled with hydraulic fluid via conduits 74 within the wall of tubular clutch support hub 60, wherein clutch support hub 60 interacts with housing 22 via a rotary feedthrough 76 so that conduits within housing 22 (not depicted) are fluidly connected to conduits 74 within clutch support hub 60 via rotary feedthrough 76. Clutch support hub 60 is supported or supportable on second transmission input shaft 26 inwardly in radial direction 10 via radial bearing 78 on the one side, and outwardly in radial direction 8 on housing 22 via rotary feedthrough 76.

[0031] Both output-side disk carriers 46, 50 are likewise designed as substantially pot-shaped, wherein these are open in opposite axial direction 6 and are connected inwardly in radial direction 10 rotationally fixed to a first clutch output hub 80 or to a second clutch output hub 82. Thus, first clutch output hub 80 is in detachable rotary driving connection with first transmission input shaft 24 and second clutch output hub 82 is in detachable rotary driving connection with second transmission input shaft 26.

[0032] Substantially tubular disk support section 52 of first input-side disk carrier 44 has an input-side rotary driving contour 84 which is designed, for example, as an inner toothing in the embodiment depicted. Input- side rotary driving contour 84 may hereby preferably be formed by a rotary driving contour for the disks, in this case the outer disks, of disk set 40 of outer disk clutch 36. Input-side rotary driving contour 84 functions for the rotary driving connection with separating clutch device 34, described later in greater detail. Concentric double clutch device 32 dispenses with its own clutch input hub; instead, concentric double clutch device 32 and separating clutch device 34 have mutual clutch input hub 88, wherein separating clutch device 34 is arranged in the torque transmission path between mutual clutch input hub 88 and first input-side disk carrier 44. In addition, mutual clutch input hub 88 is designed as one piece .

[0033] Separating clutch device 34 of triple clutch device 2 has a third disk clutch 90 with a corresponding disk set 92. Third disk clutch 90 functions for selective torque transmission between a third input-side disk carrier 94 and a third output-side disk carrier 96. Third input-side disk carrier 94 is designed as an inner disk carrier, which has a substantially tubular disk support section 98 and a radial support section 100 connected to disk support section 98 in axial direction 4, wherein radial support section 100 extends on the one side outward in radial direction 8 over disk support section 98 in order to function here as a stop for disk set 92 in axial direction 4, and extends on the other side inward in radial direction 10 in order to be connected rotationally fixed with mutual clutch input hub 88. Third input-side disk carrier 94 is also composed of two pieces from disk support section 98 and radial support section 100, which are fixed rotationally fixed to each other in order to enable a simple production of third input-side disk carrier 94 while achieving the supportability of disk set 92 on radial support section 100 in axial direction 4.

[0034] Third output-side disk carrier 96 is designed an outer disk carrier. Thus, third output-side disk carrier 96 has a first radial section 102 extending substantially in radial directions 8, 10, a substantially tubular disk support section 104, which connects to first radial section 102 in radial direction 10 and extends starting from first radial section 102 in axial direction 4, and a second radial section 106, which connects in axial direction 4 to disk support section 104 and starting from disk support section 104 extends inward in radial direction 10. Third output-side disk carrier 96 is also supported or supportable in radial directions 8, 10 on a stationary housing or housing cover of triple clutch device 2. In the embodiment depicted, the radial support is carried out on housing cover 30 via second radial section 106. Stated more precisely, a support hub 108 is fixed on the end of second radial section 106 facing inward in radial direction 10, wherein support hub 108 is supported or supportable on housing cover 30 via a radial bearing 110, here a roller bearing or a grooved ball bearing. For this purpose, housing cover 30 has a support collar 114, which surrounds a central housing cover opening 112 and projects in axial direction 6, on which support collar radial bearing 110 is supported or supportable in radial directions 8, 10. In addition, mutual clutch input hub 88 extends out of wet space 28 in axial direction 4 through housing cover opening 112 in order to be directly or indirectly connected or connectable to an output side of internal combustion engine 18 outside of wet space 28. [0035] Separating clutch device 34 is arranged inside of wet space 28, wherein its disk set 92 is arranged aligned in axial directions 4, 6 with one or both of disk sets 40, 42 of the inner and outer disk clutches 38, 36. In the advantageous embodiment depicted, disk set 92 of third disk clutch 90 is arranged in such a way that disk set 92 is only arranged aligned at least partially with disk set 42 of inner disk clutch 38 in axial directions 4, 6, while disk set 92 is offset far inward in radial direction 10 in such a way that it is not arranged aligned with disk set 40 of outer disk clutch 36 in axial directions 4, 6.

[0036] In order to couple separating clutch device 34 to double clutch device 32 without the intermediate connection of another clutch input hub of concentric double clutch device 32, third output-side disk carrier 96 has an output-side rotary driving contour 116. Output- side rotary driving contour 116 is designed on the end of first radial section 102 of third input-side disk carrier 96 facing outward in radial direction 8, wherein output- side rotary driving contour 116 is designed here by way of example, as a toothing, stated more precisely, as an outer toothing. In addition, output-side rotary driving contour 116 is designed as a dovetail toothing, which is consequently suited for engaging behind disk support section 52 of first input-side disk carrier 44 from the outside in radial direction 10.

[0037] Output-side rotary driving contour 116 is in rotary driving engagement with previously mentioned input-side rotary driving contour 84 on disk support section 52 of first input-side disk carrier 44. In addition, output-side rotary driving contour 116 or first radial section 102 of third output-side disk carrier 96 is supported or supportable in axial direction 4 on disk support section 52 of first input-side disk carrier 44 via a retaining ring 118. By loosening retaining ring 118, third output-side disk carrier 96 may, however, be detached in axial direction 4 from first input-side disk carrier 44, so that in general a detachable fixing of third output-side disk carrier 96 or of separating clutch device 34 on first input-side disk carrier 44 may be discussed. Output-side rotary driving contour 116 and input-side rotary driving contour 84 are thereby arranged farther outward in radial direction 10 than second input- side disk carrier 48.

[0038] While the actuating devices for outer and inner disk clutches 36, 38 are arranged on clutch support hub 60, an actuating device 120 for actuating third disk clutch 90 is arranged on mutual clutch input side 88. Actuating device 120 is likewise a hydraulic actuating device, wherein actuating device 120 correspondingly has an actuating piston 122 displaceable in axial directions 4, 6 relative to mutual clutch input hub 88. Actuating piston 122 is arranged on mutual clutch input hub 88 or supported or supportable on the same in radial directions 8, 10. A pressure chamber 124, to which hydraulic pressure may be applied, and a counter pressure chamber 126, which may be filled with a hydraulic fluid, are assigned to actuating piston 122, wherein pressure chamber 124 and counter pressure chamber 126 are delimited at least partially inwardly in radial direction 10 by clutch input hub 88. Pressure chamber 124 is delimited in axial direction 6 by a limiting wall 128 fixed on mutual clutch input hub 88 and in axial direction 4 by actuating piston 122. Counter pressure chamber 126 is delimited in turn in axial direction 6 by actuating piston 122 and in axial direction 4 by a partition 130, which borders radial support section 100 and/or mutual clutch input hub 88 in axial direction 4 while forming a fluid overflow 132 from counter pressure chamber 126. Fluid overflow 132 has the advantage that fluid overflowing from counter pressure chamber 126 may be supplied to disk set 92 of third disk clutch 90 and additionally the filling level in counter pressure chamber 126 may be precisely set. The supply of both pressure chamber 124 and also of counter pressure chamber 126 is carried out via conduits 134 within mutual clutch input hub 88. In the embodiment depicted, the supply of conduits 134 is carried out via a rotary feedthrough between mutual clutch input hub 88 and first transmission input shaft 24, within which corresponding supply conduits 136 are designed.

[0039] Mutual clutch input hub 88, actuating piston 122, third input-side disk carrier 94, limiting wall 128, partition 130, and the chambers between the components, namely pressure chamber 124 and counter pressure chamber 126, form a coherent module detachable from triple clutch device 2. In other words, if the mentioned module is detached from triple clutch device 2 and arranged alone, then mutual clutch input hub 88, actuating piston 122, third input-side disk carrier 94, limiting wall 128, partition 130, pressure chamber 124, and counter pressure chamber 126 are arranged captively on each other, by which means not only is a simplified assembly and disassembly possible, but also a particularly simple modular design of triple clutch device 2 is achieved, as this shall be explained below in greater detail.

[0040] To disassemble, housing cover 30 is initially removed in order to subsequently loosen retaining ring 118. As a result, the previously mentioned module, including third output-side disk carrier 96 and disk set 92 of third disk clutch 90 may be detached in axial direction 4 from triple clutch device 2. If separating clutch device 34 has been detached from triple clutch device 2 in the described way, then this may be - as is shown in Figure 2 - simply replaced by a drive plate 138 with a hub 140 arranged rotationally fixed thereon, in that a rotary driving contour 142 on drive plate 138, which substantially corresponds to output-side rotary driving contour 116 of third output-side disk carrier 96, may be brought into rotary driving engagement with input- side rotary driving contour 84 of first input-side disk carrier 44 in order to subsequently support drive plate 138 in axial direction 4 via retaining ring 118. It is obvious from this that a particularly flexibly usable triple clutch device 2 is created, which on the one hand may be used as a triple clutch device 2 and on the other hand - after replacing separating clutch device 34 with drive plate 138 - it may be used as a concentric double clutch device 32 in the drivetrain without an upstream separating clutch device 34.

[0041] As the drivetrain indicated in Figure 1 is a drivetrain for a hybrid vehicle, a means 144 for achieving a rotary driving connection with the output side of an electric machine 146 is additionally provided on first input-side disk carrier 44, wherein means 144 may be, for example, a gear or sprocket and/or is fixed rotationally fixed on first input-side disk carrier 44. Alternatively, the rotor of an electric machine 146 may also be fixed rotationally fixed on first input-side disk carrier 44. Regardless of whether means 144 or a rotor of an electric machine 146 is arranged on first input-side disk carrier 44, it is preferred in any case that the arrangement or fixing is carried out on an axial section 148 of first input-side disk carrier 44, said axial section being recessed inward in radial direction 10 with respect to disk support section 52.

Reference numerals

Triple clutch device

Axial direction

Axial direction

Radial direction

Radial direction

Circumferential direction

Circumferential direction

Axis of rotation

Internal combustion engine Double clutch transmission Housing

First transmission input shaft Second transmission input shaft Wet space

Housing cover

Concentric double clutch device

Separating clutch device

Outer disk clutch

Inner disk clutch

Disk set

Disk set

First input-side disk carrier First output-side disk carrier Second input-side disk carrier Second output side disk carrier Disk support section

Disk support section

Radial support section

Radial support section

Clutch support hub First actuating piston

Second actuating piston

Pressure chamber

Pressure chamber

Counter pressure chamber

Counter pressure chamber

Conduits

Rotary feedthrough

Radial bearing

First clutch output hub

Second clutch output hub

Input-side rotary driving contour

Rotary driving contour

Clutch input hub

Third disk clutch

Disk set

Third input-side disk carrier

Third output-side disk carrier

Disk support section

Radial support section

First radial section

Disk support section

Second radial section

Support hub

Radial bearing

Housing cover opening

Support collar

Output-side rotary driving contour Retaining ring

Actuating device

Actuating piston

Pressure chamber Counter pressure chamber

Limiting wall

Partition

Fluid overflow

Conduits

Supply conduit

Drive plate

Hub

Rotary driving contour Means

Electric machine

Axial section