CN220742699U - Hybrid power module - Google Patents

Hybrid power module Download PDF

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Publication number
CN220742699U
CN220742699U CN202190000791.1U CN202190000791U CN220742699U CN 220742699 U CN220742699 U CN 220742699U CN 202190000791 U CN202190000791 U CN 202190000791U CN 220742699 U CN220742699 U CN 220742699U
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CN
China
Prior art keywords
rotor
clutch
hybrid module
pressure plate
plate
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Active
Application number
CN202190000791.1U
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Chinese (zh)
Inventor
勒内·代克勒
卡尔-路德维希·基米希
亚历山大·福伊特
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
    • F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
    • F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
    • F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/385—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs double clutches, i.e. comprising two friction disc mounted on one driven shaft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The present application relates to a hybrid module (1) for coupling and decoupling an internal combustion engine (4) to and from a drive train of a motor vehicle, comprising an electric motor (6) and a separating clutch (7) which is arranged in a radial direction (R) of the hybrid module (1) within the electric motor (6) and which has a counter plate (24), a pressure plate (27) which is displaceably limited in an axial direction (A) of the hybrid module (1) and an intermediate pressure plate (26) which is arranged between the counter plate (24) and the pressure plate (27) and is displaceably limited in the axial direction (A), and a clutch disk (34, 35) which is clamped in a friction fit between the counter plate (24), the intermediate pressure plate (26) and the pressure plate (27), wherein the electric motor (6) has a rotor (16) which is rotatably supported by means of a rotor tab (20) with respect to a stator (15) of the electric motor (6), wherein the rotor (20) is connected to the rotor (21) in the radial direction (R) on the rotor disk (21) or to the rotor (21) on the outer side of the rotor (21) of the rotor carrier, and the rotor (21) on the outer side of the rotor carrier (21) is formed by means of the rotor-carrier, wherein the pressure plate (27) and/or the intermediate pressure plate (26) are connected to the rotor carrier (21) or the rotor web (20) or the counter pressure plate (24) on the inside of the rotor carrier (21) in a rotationally fixed manner via a leaf spring (30).

Description

Hybrid power module
Technical Field
The present application relates to a hybrid module for coupling and decoupling an internal combustion engine to and from a powertrain of a motor vehicle. The hybrid module has an electric motor and a disconnect clutch that is disposed within the electric motor in a radial direction of the hybrid module, and that has a counter plate, a pressure plate that is limitedly displaceable in an axial direction of the hybrid module, and an intermediate pressure plate that is disposed between the counter plate and the pressure plate and is limitedly displaceable in the axial direction. The separating clutch further has a clutch disk which can be clamped in a friction fit between the counter plate, the intermediate pressure plate and the pressure plate.
Background
The drive train of a hybrid vehicle generally comprises a combination of an internal combustion engine and an electric motor, and enables a purely electric mode of operation, for example in populated areas, with sufficient active radius and availability during long-distance travel. Furthermore, there is the possibility that in certain operating situations both the internal combustion engine and the electric motor are driven. In hybrid vehicles, the electric motor generally replaces, on the one hand, the earlier usual starter for the internal combustion engine and, on the other hand, the earlier usual generator, in order to reduce the weight increase of the hybrid vehicle relative to a vehicle that is operated solely by the internal combustion engine.
As is known from EP 0 773 A1, a disconnect clutch can be provided between the internal combustion engine and the electric motor in order to disconnect the internal combustion engine from the remaining drive train of the electric motor and the hybrid vehicle. In the pure electric mode, the off-state clutch, also referred to as the K0 clutch, is then disengaged and the internal combustion engine is switched off, so that the drive torque of the hybrid vehicle is applied only by the electric motor.
Such disconnect clutches are typically operated by means of a hydraulic operating system. Hydraulic operating systems generally have a master cylinder which transmits the pressure generated at the master cylinder to a slave cylinder via a hydraulic pressure line. The slave cylinder transmits hydraulic pressure with the aid of a piston displaceable in the axial direction, with the interposition of a clutch release bearing, to a rod system, by means of which a friction fit at the release clutch is formed or released. A fully hydraulic operating system as is typically used in hybrid modules can be provided with a central separator, which is also commonly referred to as Concentric Slave Cylinder (CSC, concentric slave cylinder), for example. The operation system based on the central separator requires a relatively large installation space within the hybrid module.
The hybrid modules can be divided into the following categories P0-P5 according to the arrangement or engagement points of the electric motor into the powertrain:
p0: the electric motor is arranged in the torque path upstream of the internal combustion engine and is coupled to the internal combustion engine, for example via a belt. In this arrangement of the electric motor, the electric motor is sometimes also referred to as a belt starter generator (RSG).
P1: the electric motor is arranged in the torque path directly after the combustion engine. This arrangement of the electric motor can take place, for example, in a torque path before the start clutch or the shift clutch in a manner fixed to the crankshaft.
P2: the electric motor is disposed in the torque path between a disconnect clutch, commonly referred to as the K0 clutch, and a start clutch or shift clutch, but in the torque path before the vehicle transmission.
P3: the electric motor is disposed on the vehicle transmission and/or transmission output shaft.
P4: the motor is located at the existing or separate axle.
P5: the electric motor is arranged at or in the driven wheel, for example as an in-wheel motor.
The disconnect clutch required for the hybrid drive of a conventional drive train must meet specific requirements with respect to design size and energy efficiency in comparison to conventional starting or shifting clutches. In particular, the disconnect clutch for the P2 hybrid module must be particularly low drag torque in the open or disconnected state. If the vehicle is driven by an electric motor and the internal combustion engine is switched off, a high rotational speed difference usually occurs in the disengaged clutch for a long time between the drive side and the driven side of the disengaged clutch. Even small drag torques occurring in the disconnect clutch can rapidly cause an unacceptably large energy input because of the large rotational speed difference. If the energy input in the separating clutch is too high, this can lead to increased wear of the friction linings of the clutch disk and thus to premature failure of the separating clutch. The high energy input into the disengaged clutch can also negatively influence the radius of movement that the motor vehicle can travel without the assistance of the internal combustion engine by means of battery charging.
Disclosure of Invention
The object of the present application is to make it possible to realize a hybrid module having a structure that is as compact as possible.
The object is achieved according to the present application by a hybrid module having the features of the independent claims. Preferred embodiments of the hybrid module are specified in the dependent claims.
According to a first aspect, a hybrid module for coupling and decoupling an internal combustion engine to and from a drive train of a motor vehicle is proposed, which has an electric motor and a disconnect clutch which is arranged in a radial direction of the hybrid module within the electric motor and which has a counter plate, a pressure plate which is displaceably limited in an axial direction of the hybrid module and an intermediate pressure plate which is arranged between the counter plate and the pressure plate and is displaceably limited in the axial direction, and a clutch disk which is clamped in a friction fit between the counter plate, the intermediate pressure plate and the pressure plate, wherein the electric motor has a rotor which is rotatably supported with respect to a stator of the electric motor by means of rotor webs, wherein the rotor webs are connected to or transition into a rotor carrier outside the clutch disk in the radial direction, on the outside of which the rotor is formed in a rotationally fixed manner with the rotor carrier. Since the pressure plate and/or the intermediate pressure plate are rotationally fixed to the rotor carrier or the rotor web or the counter pressure plate via the leaf springs on the inner side of the rotor carrier, a compact design is possible.
According to a preferred embodiment, the rotor web is supported by the rotor bearing in an axially fixed and rotatable manner on a support wall which carries the stator of the electric motor indirectly or directly. By means of the described manner of support, the required installation space is further reduced.
It is furthermore advantageous if the rotor carrier and/or the rotor has recesses distributed in the circumferential direction of the hybrid module, by means of which recesses the hybrid module can be connected in a rotationally fixed manner, in particular to the torque converter and/or the torque converter lock-up clutch. The required installation space can be reduced even further by means of the recess.
According to a further preferred embodiment, the pressure plate is in contact with a pressure tank of a concentric hydraulic actuating device that rotates with the rotor carrier, for engaging and/or disengaging the separating clutch. Since a separate release bearing can thus be dispensed with, the required installation space can be further reduced.
According to a further preferred embodiment, at least one of the clutch disks is connected in a rotationally fixed manner and in an axial direction to an input shaft, which is connected in a rotatable manner to the internal combustion engine. Thus, it is not necessary to maintain the plugging tooth movable in the axial direction, whereby the required installation space can be further reduced.
Furthermore, it is advantageous if the input shaft is rotatably supported on the rotor web of the electric motor by means of axial and radial bearings. As a result, the installation space required for the hybrid module is also further reduced.
Preferably, the input shaft has a flange, to which at least one of the clutch disks is connected in a rotationally fixed and elastic manner in the axial direction via at least one spring device, whereby the installation space required for the hybrid module can be further reduced.
It is furthermore advantageous if the first spring plate of the first spring device has cutouts spaced apart in the circumferential direction of the hybrid module, through which cutouts the axial sections of the second spring device of the other clutch disk extend in the axial direction. The construction enables a particularly compact clutch disc assembly, whereby the installation space required for the hybrid module can be further reduced.
It is particularly advantageous if the friction lining of the other clutch disk is arranged in the axial direction on one side of the first spring plate and the second spring plate of the second spring device is arranged in the axial direction on the other side of the first spring plate for elastic engagement with the flange in the axial direction, as a result of which the installation space requirements of the clutch disk assembly or the hybrid module can be further reduced.
According to a second aspect, which is preferably also considered independently of the first aspect and/or the preferred embodiments described above, a hybrid module for coupling and decoupling an internal combustion engine to and from a drive train of a motor vehicle is proposed, which has an electric motor and a separating clutch which is arranged in a radial direction of the hybrid module within the electric motor and which has a counter plate, a pressure plate which is limitedly displaceable in an axial direction of the hybrid module, and at least one clutch disk which is clamped in a friction fit between the counter plate and the pressure plate, wherein the clutch disk is connected in a rotationally fixed manner in an axial direction within a rotor of the electric motor to an input shaft of the hybrid module. Since the input shaft is rotatably mounted with respect to a support wall of the electric motor, which indirectly or directly carries the stator, and is formed without axial and radial bearings within the rotor in the axial direction, the installation space of the hybrid module can be reduced.
Advantageously, the input shaft is rotatably supported by means of axial and radial bearings at the rotor tab of the electric motor and the rotor tab is rotatably supported by means of the rotor bearings at the support wall. As a result, the installation space required for the hybrid module can be further reduced.
Preferably, the axial bearing and the radial bearing of the input shaft overlap the center of gravity of the input shaft in the axial direction. By means of the type of support, no additional support bearing is required to prevent a tilting of the input shaft, as a result of which the installation space required for the hybrid module can be further reduced.
Advantageously, the counter-pressure plate forms the rotor web, as a result of which the installation space required for the hybrid module can be further reduced.
According to a further preferred embodiment, the end of the input shaft on the combustion engine side has a guide bearing, by means of which the input shaft can be rotatably supported on the crankshaft of the combustion engine. The hybrid module itself can be constructed compactly by means of the type of support.
According to a third aspect which can preferably be considered independently of the first and/or second aspect and/or the preferred embodiment mentioned in the foregoing, a clutch disc assembly for a multi-disc disconnect clutch for coupling an internal combustion engine to and decoupling from a drive train of a motor vehicle is proposed, which clutch disc assembly has at least one first clutch disc and at least one second clutch disc, which are both fixedly secured against torsion and in an axial direction of the clutch disc assembly at a flange, and which have spring means acting in an axial direction, respectively. Since the spring devices of the first clutch disk have cutouts spaced apart in the circumferential direction of the clutch disk assembly, through which the axial sections of the spring devices of the second clutch disk extend in the axial direction, the clutch disk assembly can be constructed particularly compactly.
According to a preferred embodiment, the incisions are uniformly spaced apart from each other by angular values in the circumferential direction. Furthermore, the axial sections are uniformly spaced apart from one another in the circumferential direction by the same angle value, so that the two clutch disks can be mounted in a rotatable manner relative to one another by an integer multiple of the angle value when they are mounted. Thereby, the structural space required for the clutch disc assembly can be reduced.
It is furthermore advantageous if the first clutch disk has a first imbalance and the second clutch disk has a second imbalance, and the two clutch disks are rotatably mounted relative to one another such that the total imbalance formed by the first and second imbalance is minimal. As a result, a particularly compact clutch disk assembly can also be achieved, in particular if no separate counterweight is provided at the clutch disk assembly.
Preferably, the first clutch disk is joined to the flange in a rotationally fixed manner and elastically in the axial direction via at least one first spring plate as the first spring means. Since the first spring plate has cutouts spaced apart in the circumferential direction, the clutch disc assembly can be constructed particularly compactly.
It is furthermore advantageous if the second spring device has at least a spacer screw as an axial section, a lining support ring and a second spring plate, wherein the lining support ring is arranged on one side of the first spring plate and the second spring plate is arranged on the other side of the first spring plate, and the spacer screw connects an inner region of the lining support ring with an outer region of the second spring plate through a cutout in the first spring plate. Thus, a particularly compact clutch disc assembly is possible.
Preferably, the two spring plates are connected, preferably riveted, to the flange on different sides of the flange. Thereby, the space requirement of the clutch disc assembly can be further reduced.
Furthermore, a hybrid module for coupling and decoupling an internal combustion engine to and from a drive train of a motor vehicle is proposed, which has an electric motor and a separating clutch which is arranged in a radial direction of the hybrid module within the electric motor and which has a counter plate, a pressure plate which is displaceably limited in an axial direction of the hybrid module and an intermediate pressure plate which is arranged between the counter plate and the pressure plate and is displaceably limited in the axial direction, and a clutch disc assembly according to one of the preceding embodiments, wherein a first clutch disc is frictionally clampable between the counter plate and the intermediate pressure plate and a second clutch disc is frictionally clampable between the intermediate pressure plate and the pressure plate. Such a hybrid module can be constructed particularly compactly.
Preferably, the electric motor has a rotor which is rotatably supported by a rotor tab with respect to a stator of the electric motor, wherein the counter plate forms the rotor tab. The installation space requirement of the hybrid module can thereby be further reduced.
Furthermore, the flange is preferably formed on the input shaft which can be connected in a rotationally fixed manner to the internal combustion engine, as a result of which the installation space of the hybrid module is further reduced.
Furthermore, a method for mounting a clutch disc assembly for a multi-disc disconnect clutch of a hybrid module for coupling and decoupling an internal combustion engine to and from a drive train of a motor vehicle is proposed, in particular according to one of the above-described embodiments, which clutch disc assembly has at least one first clutch disc with a first imbalance and at least one second clutch disc with a second imbalance, wherein the two clutch discs are rotated relative to one another such that the total imbalance formed by the first and second imbalance is minimized and the two clutch discs are fixedly secured at the flange with the minimum total imbalance in torsion and in the axial direction of the clutch disc assembly. The method enables the installation of a particularly compact clutch disc assembly.
According to a fourth aspect which can preferably be considered independently of the first and/or second and/or third aspects and/or the preferred embodiments mentioned in the foregoing, a hybrid module for coupling and decoupling an internal combustion engine to and from a drive train of a motor vehicle is proposed, which has an electric motor and a separating clutch which is arranged within the electric motor in a radial direction of the hybrid module and which has a counter plate, a pressure plate which is displaceably limited in an axial direction of the hybrid module and an intermediate pressure plate which is arranged between the counter plate and the pressure plate and displaceably limited in the axial direction, and a clutch disk which is clampable in a friction fit between the counter plate, the intermediate pressure plate and the pressure plate, wherein the electric motor has a rotor which is rotatably supported with respect to a stator of the electric motor by means of rotor tabs. Because the counter-pressure plate forms the rotor web, the hybrid module can be designed particularly compact.
According to a preferred embodiment, the rotor web, which is formed as a counter plate, is connected to the rotor carrier outside the clutch disk in the radial direction or merges into the rotor carrier, on the outside of which the rotor is formed in a rotationally fixed manner with the rotor carrier. As a result, the installation space required for the hybrid module can be further reduced.
Advantageously, the pressure plate and/or the intermediate pressure plate are rotationally fixed to the rotor carrier or the rotor web on the inner side of the rotor carrier by means of leaf springs. As a result, the installation space required for the hybrid module can be further reduced.
According to a fifth aspect which can preferably be considered independently of the first and/or second and/or third and/or fourth aspects and/or the preferred embodiments mentioned in the foregoing, a hybrid module for coupling and decoupling an internal combustion engine to and from a drive train of a motor vehicle is proposed, which has an electric motor and a separating clutch which is arranged within the electric motor in a radial direction of the hybrid module and which has at least two pressure plates, at least one of which is rotationally fixed by a leaf spring within a rotor carrier by means of a rivet connection and is movable in an axial direction of the hybrid module onto the other pressure plate in order to clamp a clutch disk between the pressure plates in a friction fit, on the outside of which the rotor of the electric motor is rotationally fixed to the rotor carrier. Since the rivet connection delimits the engagement path of a pressure plate before the wear limit of the clutch disk is reached, separate components for delimitation of the engagement path can be dispensed with, so that the hybrid module can be constructed in a particularly compact manner.
Preferably, the wear limit of the clutch disc is reached when the friction lining of the clutch disc has the same height as the head of the rivet, by means of which the friction lining is riveted with the spring means of the clutch disc.
According to a further preferred embodiment, the head of the riveting device of the leaf spring can be brought into abutment with a further pressure plate or an element fixed with respect to the rotor carrier in order to delimit the engagement path of the one pressure plate. As a result, the installation space required for the hybrid module can be further reduced.
It is furthermore advantageous if one pressure plate is formed as a pressure plate of a single-disk or multi-disk clutch and the other pressure plate is formed as a counter pressure plate that is fixed in the axial direction.
Alternatively, it is advantageous if one pressure plate is formed as a pressure plate of a multi-disk clutch and the other pressure plate is formed as an intermediate pressure plate.
Furthermore, it is alternatively advantageous if one pressure plate is formed as an intermediate pressure plate of a multi-disk clutch and the other pressure plate is formed as a counter pressure plate that is fixed in the axial direction.
Drawings
The present application is described in detail below with reference to the attached drawings according to preferred embodiments. The drawings show:
figure 1 shows a half-section of a first embodiment of a hybrid module,
Figure 2 shows a half-section of a second embodiment of a hybrid module,
figure 3 shows a half-section of a third embodiment of a hybrid module,
figure 4 shows a detail view of the disconnect clutch of a fourth embodiment of the hybrid module,
figure 5 shows a detail view of the disconnect clutch of the fifth embodiment of the hybrid module in a new state,
FIG. 6 shows a detail of the disconnect clutch of FIG. 5 in a worn state, an
Fig. 7a to 7c show a schematic illustration of a method for mounting a clutch assembly for a multi-plate disconnect clutch of a hybrid module.
Detailed Description
Fig. 1 to 7c show exemplary embodiments of a hybrid module 1, to be precise a P2 hybrid module, a clutch disk assembly 33 for a multi-disk disconnect clutch 7 of the hybrid module 1 and a method for mounting the clutch disk assembly 33. Features and combinations of features not considered essential for the utility model in the description of fig. 1 to 7c are understood to be optional.
The hybrid module 1 shown in the half section in fig. 1 has an input side 2 and an output side 3. Via the input side 2, the hybrid module 1 can be connected indirectly or directly to the internal combustion engine 4. In the exemplary embodiment shown, the internal combustion engine 4 is connected to an input-side torsional vibration damper 5, for example a dual-mass flywheel with a curved spring or a straight compression spring, in particular in conjunction with a centrifugal pendulum. The input-side torsional vibration damper 5 is connected in a rotationally fixed manner via its output side to the input side 2 of the hybrid module 1, preferably by means of a plug-in toothing 9.
The hybrid module 1 is connected on its output side 3 in a rotationally fixed manner to a torque converter and/or a torque converter lock-up clutch 50. The transmission shaft 49, which is arranged coaxially with the input shaft 8 of the hybrid module 1, can extend through a torque converter and/or a torque converter lock-up clutch 50. The input shaft 8 of the hybrid module 1 extends in the axial direction a of the hybrid module 1 and defines the rotational axis D of the hybrid module 1.
The hybrid module 1 has an electric motor 6 and a disconnect clutch 7. The electric motor 6 is an electric machine that can be operated not only as a drive in the manner of an engine, but also as a current generator in the manner of a generator. The disconnect clutch 7 is a so-called K0 clutch, which is designed to couple and decouple the internal combustion engine 4 to and from a drive train of the motor vehicle on which the hybrid module 1 is arranged. The disconnect clutch 7 is disposed within the electric motor 6 in the radial direction R of the hybrid module 1. The separating clutch 7 is in the embodiment shown configured as a dry multi-disc clutch, but can also be configured as a dry plate clutch or a dry single-disc clutch. It is also possible to construct the wet plate clutch.
On the input side 2 of the hybrid module 1, the torque of the internal combustion engine 4 can be transmitted directly or indirectly via the torsional vibration damper 5 on the input side to the input shaft 8 of the hybrid module 1. The input shaft 8 can also be referred to as a countershaft or a hybrid shaft.
In the case where the internal combustion engine 4 is directly coupled to the hybrid module 1, the input shaft 8 may be the crankshaft itself or an extension of the crankshaft of the internal combustion engine 4. The input shaft 8 is rotatably supported with respect to the motor 6 by bearings on the input side, which are designed as axial and radial bearings 11. For this purpose, the axial and radial bearings 11 are arranged between the inner input shaft 8 in the radial direction R and the outer rotor web 20 of the electric motor 6 in the radial direction R.
The input shaft 8 has an end 13 on the internal combustion engine side and an end 14 on the transmission side. The transmission-side end 14 defines the end of the input shaft 8 facing away from the internal combustion engine 4. While the plug tooth 9 is formed at the internal combustion engine-side end 13 of the input shaft 8 in the exemplary embodiment shown, the transmission-side end 14 of the input shaft 8 in the exemplary embodiment shown in fig. 1 has a transmission shaft bearing 19 via which the input shaft 8 is supported and centered on a transmission shaft 49. Between the end 13 on the internal combustion engine side and the end 14 on the transmission side in the axial direction a, in the embodiment shown in fig. 1, on the one hand, axial and radial bearings 11 and on the other hand, a flange 10 of the input shaft 8 are provided.
In the axial direction a, the flange 10 of the input shaft 8 is formed inside the separating clutch 7. Likewise, the flange 10 of the input shaft 8 is formed within the disconnect clutch 7 in the radial direction R. Furthermore, the flange 10 is arranged in the embodiment shown in fig. 1 in the axial direction a between the axial and radial bearing 11 and the transmission shaft bearing 19.
Flange 10 is part of a clutch plate assembly 33, which in the embodiment shown in fig. 1 has a first clutch plate 34 and a second clutch plate 35. At least one of the clutch disks 34, 35 is therefore connected in a rotationally fixed manner and in the axial direction a to the input shaft 8, which is connected in a rotatable manner to the internal combustion engine 4.
The separating clutch 7 has a counter-pressure plate 24 which is fixed in position in the axial direction a, a pressure plate 27 which is displaceably limited in the axial direction a, and an intermediate pressure plate 26 which is arranged between the counter-pressure plate 24 and the pressure plate 27 and is displaceably limited in the axial direction a. Furthermore, the separating clutch 7 has a clutch disk assembly 33 which can be clamped in a friction fit between the counter plate 24, the intermediate pressure plate 26 and the pressure plate 27, wherein the first clutch disk 34 can be clamped in a friction fit between the counter plate 24 and the intermediate pressure plate 26 and the second clutch disk 35 can be clamped in a friction fit between the intermediate pressure plate 26 and the pressure plate 27.
The electric motor 6 has a rotor 16 which is rotatably supported by a rotor web 20 with respect to the stator 15 of the electric motor. The rotor web 20 is connected to the rotor carrier 21 or merges into the rotor carrier 21 in the radial direction R outside the clutch plates 34, 35 or outside the clutch plate assembly 33 in the radial direction R. On the outside of the cylindrical or pot-wall-shaped rotor support 21, the rotor 16 is formed in a rotationally fixed manner with the rotor support 21. The pressing plate 27 and/or the intermediate pressing plate 26 are joined to the rotor carrier 21 or the rotor web 20 or the counter-pressure plate 24 on the inner side of the rotor carrier 21 in a rotationally fixed manner via a leaf spring 30.
In particular, the leaf springs 30 to which the pressing plates 27 are fastened and the leaf springs 30 to which the intermediate pressing plates 26 are fastened are disposed distributed in the circumferential direction U of the hybrid module 1. Where desired, the leaf spring 30 is spaced apart from the counter-pressure plate 24 in the axial direction a by an intermediate element 25, for example an intermediate ring. In order to fasten the leaf spring 30 to the counter plate 24, a riveted connection 31 is preferably formed, which extends in the axial direction a through the counter plate 24, the intermediate element 25 and the leaf spring 30, to be precise the end of the leaf spring 30 that is fixed in position in the axial direction a. The rivet connection 31 connects all three components or component groups, namely the counter plate 24, the intermediate element 25 and the leaf spring 30, to one another.
The rotor carrier 21 is arranged in the radial direction R outside the counter plate 24 or outside the intermediate element 25. The rotor carrier 21 is connected to the counter-pressure plate 24 and/or the intermediate element 25 at its end facing the input side 2 of the hybrid module 1 in a rotationally fixed and axially fixed manner. It is also possible here for the rotor carrier 21 to be formed in one piece with the counter-pressure plate 24 or in one piece with the intermediate element 25, wherein in the latter case a rotationally fixed and axially fixed connection to the counter-pressure plate 24 takes place by means of the rivet connection 31.
The rotor carrier 21 has, at its end facing the output side 3 of the hybrid module 1, a rotor carrier flange 22 extending outwards in the radial direction R. The rotor carrier flange 22 is arranged in the axial direction between the rotor 16 on the one hand and the torque converter and/or the torque converter lock-up clutch 50 on the other hand. The rotor carrier flange 22 has recesses 23 distributed in the circumferential direction U, which cooperate with corresponding recesses in the rotor 16 and in the housing of the torque converter or torque converter lock-up clutch 50, which recesses extend in the axial direction a, in order to enable a rotationally fixed engagement of the hybrid module 1 to the torque converter or torque converter lock-up clutch 50. For this purpose, bolts are screwed, for example, by means of screws, which extend from the input side 2 through the rotor 16 and the rotor support flange 22 into the housing of the torque converter or of the torque converter lock-up clutch 50.
The rotor web 20 is connected in a rotationally fixed manner to the counter-pressure plate 24 in the region of the input-side end of the rotor carrier 21. Furthermore, the rotor web 20 is mounted in a rotationally fixed manner in the axial direction a by means of the rotor bearing 18 on a support wall 17 which carries the stator 15 of the electric motor 6 indirectly or directly. In this case, the rotor web 20 has a flange section in the region of the bearing, on the inner side of which the axial and radial bearings 11 are arranged, and on the outer side of which the rotor bearing 18 is arranged. The stator 15 is connected directly to the support wall 17 or to a housing member which in turn is connected to the support wall 17.
The pressure plate 27 is in contact with a pressure tank 28 of a concentric hydraulic actuating device 29, which rotates with the rotor carrier 21, for engaging and/or disengaging the separating clutch 7. The operating device 29 can be supported at the torque converter or torque converter lock-up clutch 50. Alternatively or additionally, the operating device 29 can be supported at the transmission shaft 49. In any case, it is advantageous if the oil supply of the operating device 29 takes place via the transmission shaft 49.
The input-side clutch plate assembly 33 has at least a first clutch plate 34 and a second clutch plate 35. The two clutch disks 34, 35 are fastened to the flange 10 in a rotationally fixed manner and in the axial direction a of the clutch disk assembly 33 or of the hybrid module 1. The first clutch disk 34 can be clamped in a friction fit between the counter plate 24 and the intermediate pressure plate 26. The second clutch disk 35 can be clamped in a friction fit between the intermediate pressure plate 26 and the pressure plate 27.
The two clutch discs 34, 35 each have a spring device 36, 37 acting in the axial direction a. The spring means 36 of the first clutch disk 34 has cutouts 40 spaced apart in the circumferential direction U of the clutch disk assembly 33 or of the hybrid module 1. The axial section of the spring means 37 of the second clutch disc 35 extends through the cutout 40 in the axial direction a.
More precisely, the first clutch disk 34 is joined to the flange 10 in a rotationally fixed manner and elastically in the axial direction a via at least one first spring plate 38 as a first spring device 36. Friction linings 43 are joined to both sides of the first spring plate 38 in a rotationally fixed manner in order to be able to come into contact with friction surfaces of the counter-pressure plate 24 and the intermediate pressure plate 26 in a friction fit. The first spring plate 38 has cutouts 40 spaced apart in the circumferential direction U.
The second spring device 37 has at least a spacer screw 42 as an axial section, a lining support ring 41 and a second spring plate 39. The lining carrier ring 41 is arranged on one side of the first spring plate 38, while the second spring plate 39 is arranged on the other side of the first spring plate 38. Spacer bolts 42 pass through cutouts 40 in the first spring plate 38 to connect the inner region of the lining carrier ring 41 with the outer region of the second spring plate 39. In the outer region of the lining support ring 41, friction linings 43 are arranged on both sides of the lining support ring 41 in a rotationally fixed manner in order to be able to come into friction fit with the friction surfaces of the intermediate pressure plate 26 and the pressure plate 27. As a whole, the friction lining 43 of the second clutch disc 35 is thus arranged on one side of the first spring plate 38, while the second spring plate 39 of the second spring means 37 is arranged on the other side of the first spring plate 38 to be elastically engaged to the flange 10 of the input shaft 8 in the axial direction a.
The two spring plates 38, 39 are connected to the flange 10 on different sides of the flange in the axial direction a. Preferably, the connection is performed by riveting. It is to be noted here that the separating clutch 7 can also be designed as a single-disk clutch, so that at least one of the clutch disks 34 or at least one spring device 36, 37 engages in a rotationally fixed manner and in the axial direction a elastically with the flange 10 of the input shaft 8.
The embodiment of the hybrid module 1 shown in fig. 2 differs from the embodiment of the hybrid module 1 shown in fig. 1 in that the input shaft 8 is formed generally shorter. Thus, the flange 10 of the input shaft 8 forms a transmission-side end 14 of the input shaft 8. The input shaft 8 is rotatably mounted with respect to a support wall 17 of the electric motor 6, which indirectly or directly carries the stator 15, and is formed without axial and radial bearings within the rotor 16 in the axial direction a. That is to say, unlike the exemplary embodiment of the hybrid module 1 shown in fig. 1, the transmission-side end 14 of the input shaft 8 does not extend into the transmission shaft 49 and does not have the transmission shaft bearing 19.
In the exemplary embodiment of the hybrid module 1 shown in fig. 2, the input shaft 8 is rotatably supported on the rotor web 20 of the electric motor 6 only by means of the axial and radial bearings 11. The rotor tab 20 is rotatably supported at the support wall 17 by means of a rotor bearing 18. The axial and radial bearings 11 of the input shaft 8 overlap the center of gravity of the input shaft 8 in the axial direction a.
It is to be noted that the separating clutch 7 of the hybrid module 1 shown in fig. 2 is, although it is configured as a two-disk or multi-disk clutch, the separating clutch 7 can also be configured as a single-disk clutch, which has a counter-pressure plate 24 that is positionally fixed in the axial direction a and a pressure plate 27 that is displaceably limited in the axial direction a, and a single clutch disk that is arranged in the axial direction a between the counter-pressure plate 24 and the pressure plate 27.
The embodiment of the hybrid module 1 shown in fig. 3 can also be configured in the same way. The embodiment of the hybrid module 1 shown in fig. 3 differs from the embodiment of the hybrid module 1 shown in fig. 2 in that the input shaft 8 extends in the direction of the input side 2 of the hybrid module 1, i.e. in the direction of the internal combustion engine 4, and has a guide bearing 12 at its end 13 on the internal combustion engine side, preferably in the outer circumference of the input shaft 8. By means of the guide bearing 12, the input shaft 8 can be rotatably supported, for example, at an input flange of the input-side torsional vibration damper 5 or at a further component which is connected in a rotationally fixed manner to the crankshaft of the internal combustion engine 4. In particular, the input shaft 8 can be rotatably supported by means of a guide bearing 12 on the crankshaft of the internal combustion engine 4. It can be accompanied that the axial and radial bearings 11 of the input shaft 8 no longer overlap the center of gravity of the input shaft 8 in the axial direction a.
In the exemplary embodiment shown in fig. 4, the counter plate 24 of the disconnect clutch 7 forms a rotor web 20, by means of which the rotor 16 of the electric motor 6 is rotatably supported with respect to the stator 15 of the electric motor 6. More precisely, the counter plate 24 forming the rotor tab 20 is rotatably supported at the support wall 17 by means of the rotor bearing 18. The rotor webs, which are embodied as counter plates 24, are connected to the rotor carrier 21 outside the clutch disks 34, 35 in the radial direction R or, as shown in fig. 4, merge into the rotor carrier 21, i.e., are preferably embodied in one piece with the rotor carrier 21. On the outside of the rotor carrier 21, the rotor 16 of the electric motor 6 is formed rotationally fixed to the rotor carrier 21. The pressure plate 27 and/or the intermediate pressure plate 26 are joined to the rotor carrier 21 or the rotor web 20 on the inner side of the rotor carrier 21 in a rotationally fixed manner via a leaf spring 30.
The separating clutch 7 of the hybrid module 1 shown in fig. 4 can be designed as a single-disc clutch or as a two-disc or multi-disc clutch, even if only a single clutch disc 34 is shown in fig. 4. The same applies to the embodiment of the disconnect clutch 7 of the hybrid module 1 shown in fig. 5 and 6.
The disconnect clutch 7 of the hybrid module 1 shown in fig. 5 and 6 has at least two pressure plates 24, 26, 27, at least one pressure plate 26, 27 of which is rotationally fixed within the rotor carrier 21 by means of a leaf spring 30 by means of a rivet connection 31 and is movable in the axial direction a of the hybrid module 1 onto the other pressure plate 24, 26 in order to clamp the clutch disk 34, 35 between the pressure plates 24, 26, 27 in a friction fit. Before the wear limit of the clutch discs 34, 35 is reached, the rivet connection device 31 delimits the engagement path of the pressure plates 26, 27. When the friction linings 43 of the clutch discs 34, 35 have the same height H as the heads 45 of the rivets 44, the wear limit of the clutch discs 34, 35 is reached, the friction linings 43 being riveted to the spring devices 36, 37 of the clutch discs 34, 35 by means of the rivets. In particular, the head 32 of the rivet connection 31 of the leaf spring 30 can be brought into contact with the further pressure plate 24, 26 or with a component fixed with respect to the rotor carrier 21 in order to delimit the joining path of the one pressure plate 26, 27.
One pressure plate 26, 27 can be designed as a pressure plate 27 of a single-disk or multi-disk clutch 7 and the other pressure plate 24, 26 can be designed as a counter-pressure plate 24 that is fixed in the axial direction a. Alternatively, one pressure plate 26, 27 can be designed as a pressure plate 27 of the multiplate clutch 7 and the other pressure plate 24, 26 as an intermediate pressure plate 26. Alternatively, one pressure plate 26, 27 can be configured as an intermediate pressure plate 26 of the multiplate clutch 7 and the other pressure plate 24, 26 can be configured as a counter pressure plate 24 that is fixed in the axial direction a.
Fig. 7a to 7c show a method for mounting a clutch disk assembly 33 for a multi-disk disconnect clutch 7 of a hybrid module 1. The first clutch plate 34 has a first degree of imbalance 46. The second clutch disc 35 has a second imbalance 47. The two clutch plates 34, 35 are rotated relative to each other such that the total imbalance 48 formed by the first and second imbalances 46, 47 is minimized. The two clutch disks 34, 35 having the smallest total unbalance 48 are fastened in a rotationally fixed manner and fixedly to the flange 10 in the axial direction a of the clutch disk assembly 33 or the hybrid module 1.
In particular, it is advantageous here if the cutouts 40 provided in the spring arrangements 36 of the first clutch disk 34 are uniformly spaced apart from one another by an angle value in the circumferential direction U, and the axial sections of the spring arrangements 37 of the second clutch disk 35 are uniformly spaced apart from one another by the same angle value in the circumferential direction U, so that the two clutch disks 34, 35 can be mounted in a rotationally fixed manner to one another by an integer multiple of the angle value when they are mounted. Then the first clutch disc 34 is rotationally mounted with its first imbalance 46 and the second clutch disc 35 with its second imbalance 47 with respect to each other such that the total imbalance 48 formed by the first and second imbalance 46, 47 is minimized, as this is shown in fig. 7 c.
The exemplary embodiments mentioned hereinabove relate to a hybrid module 1 for coupling and decoupling an internal combustion engine 4 to and from a drive train of a motor vehicle, having an electric motor 6 and a disconnect clutch 7 which is arranged in a radial direction R of the hybrid module 1 within the electric motor 6 and which has a counter plate 24, a pressure plate 27 which is displaceably limited in an axial direction a of the hybrid module 1 and an intermediate pressure plate 26 which is arranged between the counter plate 24 and the pressure plate 27 and displaceably limited in the axial direction a, and clutch plates 34, 35 which are clamped in a friction fit between the counter plate 24, the intermediate pressure plate 26 and the pressure plate 27, wherein the electric motor 6 has a rotor 16 which is rotatably supported by rotor webs 20 with respect to a stator 15 of the electric motor 6, wherein the rotor webs 20 are connected to a rotor carrier 21 or transition into the rotor carrier 21 outside the clutch plates 34, 35, on the outside of which the rotor 16 is formed integrally with the rotor carrier 21, wherein the pressure plate 27 and/or the intermediate pressure plate 26 is/are engaged via the rotor webs 20 or the rotor carrier 21 via the counter plate 24 or the rotor webs 20.
Furthermore, the embodiments mentioned hereinabove relate to a hybrid module 1 for coupling and decoupling an internal combustion engine to and from a drive train of a motor vehicle, which has an electric motor 6 and a separating clutch 7 which is arranged in a radial direction R of the hybrid module 1 within the electric motor 6 and which has a counter plate 24, a pressure plate 27 which is displaceably limited in an axial direction a of the hybrid module 1, and at least one clutch disk 34, 35 which is clamped in a friction fit between the counter plate 24 and the pressure plate 27, wherein the clutch disk 34, 35 is connected in a rotationally fixed manner in the axial direction a to an input shaft 8 of the hybrid module 1 within a rotor 16 of the electric motor 6 and the input shaft 8 is rotatably mounted with respect to a support wall 17 of the electric motor 6 which indirectly or directly carries a stator 15 and is formed without axial and radial bearings within the rotor 16 in the axial direction a.
Furthermore, the embodiments mentioned hereinabove relate to a clutch disk assembly 33 of a multi-disk disconnect clutch 7 of a hybrid module 1 for coupling and decoupling an internal combustion engine 4 to and from a drive train of a motor vehicle, which clutch disk assembly has at least one first clutch disk 34 and at least one second clutch disk 35, both of which are fixedly secured at a flange 10 in a rotationally fixed manner and in an axial direction a of the clutch disk assembly 33, and both of which have spring devices 36, 37 acting in the axial direction a, respectively, wherein the spring devices 36 of the first clutch disk 34 have cutouts 40 spaced apart in a circumferential direction U of the clutch disk assembly 33, through which axial sections of the spring devices 37 of the second clutch disk 35 extend in the axial direction a.
Furthermore, the embodiments mentioned hereinabove relate to a method for mounting a clutch disk assembly 33 of a multi-disk disconnect clutch 7 of a hybrid module 1 for coupling and decoupling an internal combustion engine 4 to and from a drive train of a motor vehicle, which has at least one first clutch disk 34 with a first imbalance 46 and at least one second clutch disk 35 with a second imbalance 47, wherein the two clutch disks 34, 35 are rotated relative to one another such that the total imbalance 48 formed by the first and second imbalance 46, 47 is minimized and the two clutch disks 34, 35 are fixedly secured at the flange 10 with the minimum total imbalance 48 in the axial direction a of the clutch disk assembly 33.
Furthermore, the embodiment mentioned hereinabove relates to a hybrid module 1 for coupling and decoupling an internal combustion engine 4 to and from a drive train of a motor vehicle, which has an electric motor 6 and a separating clutch 7 which is arranged in a radial direction R of the hybrid module 1 within the electric motor 6 and which has a counter plate 24, a pressure plate 27 which is displaceably limited in an axial direction a of the hybrid module 1 and an intermediate pressure plate 26 which is arranged between the counter plate 24 and the pressure plate 27 and is displaceably limited in the axial direction a, and clutch disks 34, 35 which are clampable in a friction fit between the counter plate 24, the intermediate pressure plate 26 and the pressure plate 27, wherein the electric motor 6 has a rotor 16 which is rotatably supported by means of rotor webs 20 with respect to a stator 15 of the electric motor 6, wherein the counter plate 24 forms rotor webs 20.
Furthermore, the exemplary embodiment mentioned above relates to a hybrid module 1 for coupling and decoupling an internal combustion engine 4 to and from a drive train of a motor vehicle, comprising an electric motor 6 and a separating clutch 7 which is arranged within the electric motor 6 in a radial direction R of the hybrid module 1 and which has at least two pressure plates 24, 26, 27, wherein at least one pressure plate 26, 27 is rotationally fixed within a rotor carrier 21 by means of a leaf spring 30 by means of a rivet connection 31 and is movable in an axial direction a of the hybrid module 1 onto the other pressure plate 24, 26 in order to clamp a clutch disk 34, 35 between the pressure plates 24, 26, 27 in a friction fit, on the outside of which the rotor 16 of the electric motor 6 is rotationally fixed to the rotor carrier 21, wherein the rivet connection 31 delimits the engagement path of the one pressure plate 26, 27 before the wear limit of the clutch disk 34, 35 is reached.
Description of the reference numerals
1 P2 hybrid power module
2. Input side
3. Output side
4. Internal combustion engine
5. Torsional vibration damper on input side
6. Motor with a motor housing having a motor housing with a motor housing
7. Separating clutch
8. Input shaft
9. Plug-in tooth part of input shaft
10. Flange of input shaft
11. Axial and radial bearing
12. Guide bearing
13. End of internal combustion engine side
14. End on transmission side
15. Stator
16. Rotor
17. Supporting wall
18. Rotor bearing
19. Transmission shaft bearing
20. Rotor tab
21. Rotor carrier
22. Rotor carrier flange
23. Blank part
24. Counter plate/platen
25. Intermediate element
26. Intermediate platen/press plate
27. Compacting plate/platen
28. Pressure tank
29. Operating device
30. Leaf spring
31. Riveting connection device
32. Head of riveting connection device
33. Clutch disc assembly
34. First clutch disc
35. Second clutch disc
36. First spring device
37. Second spring device
38. First spring plate
39. Second spring plate
40. Cutouts in the first spring plate
41. Lining carrying ring
42. Spacing bolt
43. Friction lining
44. Rivet
45. Head part
46. First degree of unbalance
47. Second degree of unbalance
48. Total unbalance degree
49. Transmission shaft
50. Torque converter lockup clutch
H height
D axis of rotation
Aaxial direction
R radial direction
And the circumferential direction of the U ring.

Claims (10)

1. Hybrid module (1) for coupling and decoupling an internal combustion engine (4) to and from a drive train of a motor vehicle, having an electric motor (6) and a separating clutch (7), characterized in that the separating clutch is arranged within the electric motor (6) in a radial direction (R) of the hybrid module (1) and has a counter plate (24), a pressure plate (27) which is limitedly displaceable in an axial direction (A) of the hybrid module (1) and an intermediate pressure plate (26) which is arranged between the counter plate (24) and the pressure plate (27) and is limitedly displaceable in the axial direction (A), and a clutch disc (34, 35) which is frictionally clamped between the counter plate (24), the intermediate pressure plate (26) and the pressure plate (27), wherein the electric motor (6) has a rotor (16) which is rotatably supported by a rotor (20) with respect to a stator (15) of the electric motor (6), wherein the rotor (20) is connected to a rotor (21) or a carrier disc (21) which is carried in the radial direction, the rotor (16) is formed in a rotationally fixed manner to the rotor carrier (21), wherein the pressure plate (27) and/or the intermediate pressure plate (26) are rotationally fixed to the rotor carrier (21) or the rotor web (20) or the counter pressure plate (24) on the inner side of the rotor carrier (21) via a leaf spring (30).
2. Hybrid module (1) according to claim 1, characterized in that,
wherein the rotor web (20) is mounted in a rotationally fixed manner in the axial direction (A) by means of a rotor bearing (18) on a support wall (17) which carries the stator (15) of the electric motor (6) indirectly or directly.
3. Hybrid module (1) according to claim 1, characterized in that,
wherein the rotor carrier (21) and/or the rotor (16) has recesses (23) which are arranged distributed in the circumferential direction (U) of the hybrid module (1) and through which the hybrid module (1) is connected in a rotationally fixed manner to a torque converter and/or a torque converter lock-up clutch (50).
4. Hybrid module (1) according to claim 1, characterized in that,
wherein the pressure plate (27) is in contact with a pressure tank (28) of a concentric, hydraulic actuating device (29) which rotates with the rotor carrier (21) for engaging and/or disengaging the separating clutch (7).
5. Hybrid module (1) according to claim 1, characterized in that,
wherein the counter plate (24) forms the rotor web (20).
6. Hybrid module (1) according to any one of claims 1 to 5, characterized in that,
At least one of the clutch disks (34, 35) is connected in a rotationally fixed manner and in the axial direction (A) to an input shaft (8) which is rotatably connected to the internal combustion engine (4).
7. Hybrid module (1) according to claim 6, characterized in that,
wherein the input shaft (8) is rotatably supported on the rotor web (20) of the electric motor (6) by means of an axial and radial bearing (11).
8. Hybrid module (1) according to claim 6, characterized in that,
wherein the input shaft (8) has a flange (10) to which at least one of the clutch disks (34) is connected in a rotationally fixed manner and in an axial direction (a) in an elastic manner via at least one spring device (36, 37).
9. Hybrid module (1) according to claim 8, characterized in that,
wherein the first spring plate (38) of the first spring device (36) has cutouts (40) which are spaced apart in the circumferential direction (U) of the hybrid module (1) and through which axial sections of the second spring device (37) of the further clutch disk (35) extend in the axial direction (A).
10. Hybrid module (1) according to claim 9, characterized in that,
Wherein a friction lining (43) of the further clutch disc (35) is arranged on one side of the first spring plate (38) and a second spring plate (39) of the second spring means (37) is arranged on the other side of the first spring plate (38) to be elastically engaged with the flange (10) of the input shaft (8) in an axial direction (a).
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DE102018104361A1 (en) * 2018-02-27 2019-08-29 Schaeffler Technologies AG & Co. KG Coupling arrangement with additional support bearing; as well as drive unit
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