EP3631225A1 - Clutch arrangement, and drive train unit - Google Patents
Clutch arrangement, and drive train unitInfo
- Publication number
- EP3631225A1 EP3631225A1 EP18725431.3A EP18725431A EP3631225A1 EP 3631225 A1 EP3631225 A1 EP 3631225A1 EP 18725431 A EP18725431 A EP 18725431A EP 3631225 A1 EP3631225 A1 EP 3631225A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clutch
- coupling arrangement
- friction clutch
- flywheel
- dog clutch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- 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
- F16D21/00—Systems comprising a plurality of actuated clutches
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- 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
- F16D11/00—Clutches in which the members have interengaging parts
- F16D11/08—Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially
- F16D11/10—Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially with clutching members movable only axially
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- 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
- B60K6/30—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 chargeable mechanical accumulators, e.g. flywheels
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G3/00—Other motors, e.g. gravity or inertia motors
- F03G3/08—Other motors, e.g. gravity or inertia motors using flywheels
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- 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
- F16D11/00—Clutches in which the members have interengaging parts
- F16D11/14—Clutches in which the members have interengaging parts with clutching members movable only axially
-
- 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
-
- 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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/50—Engine start by use of flywheel kinetic energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N5/00—Starting apparatus having mechanical power storage
- F02N5/04—Starting apparatus having mechanical power storage of inertia type
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- 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
Definitions
- the invention relates to a clutch assembly with a friction clutch and a dog clutch.
- the electric motor in hybridized drive trains to start the internal combustion engine.
- This has the disadvantage that the electric motor must withhold a corresponding power reserve, so that can be changed from the electric operation in the hybrid mode or the sole internal combustion engine operation. Accordingly, the electric motor is designed to be stronger than necessary for the sole electromotive operation.
- the output side of the friction clutch and the output side of the dog clutch are connectable to a flywheel device.
- the coupling device as such thus has only connection points, after assembly, it is connected to the flywheel device.
- the clutch assembly which is also marked as flywheel clutch assembly, is arranged in front of the flywheel device. This makes it possible to keep the flywheel by the electric motor to rotate, which is why the flywheel mass means has a large rotational or rotational energy.
- flywheel clutch the engine can be separated from the flywheel device during the electric motor gearbox. To start the engine is then closed the fly-start clutch, with large torque peaks can occur. These can be absorbed by the parallel friction clutch and dog clutch.
- the dog clutch may have a claw element with at least one input-side and one output-side toothing.
- One of the teeth preferably the input-side toothing, can be spitted out in order to achieve disengagement.
- the dog clutch may comprise a jaw member which is storable on the flywheel device.
- the jaw member is thus formed substantially hollow cylindrical.
- the jaw member or a bearing sleeve on which the jaw member is plugged or pushed are connected to the flywheel device.
- the jaw element is mounted in particular axially movable.
- the dog clutch may be formed as a radial dog clutch. Accordingly, the teeth of the toothing are arranged in the radial direction.
- the dog clutch on a jaw member, wherein on the jaw member a radially outwardly directed projection is arranged, by means of which the dog clutch is actuated.
- An actuation of the dog clutch is accordingly effected by an axial displacement of the jaw member.
- the projection is provided on which an actuating device can act.
- the jaw member may be biased by a preload spring in a preferred position.
- the preload spring creates a defined starting position of the dog clutch.
- the preload spring can engage the projection provided for actuating the dog clutch.
- the friction clutch and / or the dog clutch may be formed as a normally-closed clutch.
- the preload spring then supports the dog element in the direction of closing.
- the friction clutch can be designed as a dry-running clutch.
- the friction clutch is designed as a wet-running multi-plate clutch.
- the friction clutch can basically also be configured as a dry-running multi-disc clutch, it is preferred for the friction clutch to have a clutch disc. This is advantageously arranged on the input side.
- the clutch disc is usually connected to the transmission input shaft. It is thus arranged on the output side of the clutch.
- the clutch disc may be connected via a hub to the crankshaft.
- at least one elastic element, in particular tangential leaf springs, can be located between the hub and the clutch disk.
- the friction clutch may have a pressure plate, which is arranged on the output side. This results in the arrangement of the clutch disc on the input side.
- the coupling arrangement can have a counter pressure plate.
- a flywheel or dual mass flywheel is used as the counterpressure plate. This is in the described construction not possible because the flywheel device is located on the output side of the clutch assembly and thus can not be part of the clutch input.
- the Gegenanpressplatte is rotatably connected to a housing portion of the clutch assembly. Further preferably, the Jacobanpressplatte be stored on the input side of the clutch assembly.
- the counter-pressure plate can be mounted on the input-side hub of the clutch assembly. For this purpose, there is preferably a roller bearing between the hub and the Gegenanpressplatte. This results in a closed coupling module, which can be connected to the crankshaft on one side and the flywheel device on the other side in a simple manner.
- the friction clutch and the dog clutch may have a common actuator.
- the friction clutch and the dog clutch are always used simultaneously. Therefore, it is advantageous to use a single actuator through which then both clutches are operated simultaneously. In normally closed couplings, these are thus disengaged together. By the joint operation, the control of the clutch assembly is simplified, further components can be saved.
- the actuator may close the friction clutch in the direction first. This makes it possible to operate the clutch assembly in the slip mode before the dog clutch is engaged.
- the dog clutch is designed first.
- the friction clutch and / or the dog clutch may comprise an actuating device which actuates by means of pressure oil.
- the actuation is thus hydraulic, while the clutches of the clutch assembly in a preferred embodiment are both dry running.
- the dog clutch is always dry running, the friction clutch is in the preferred embodiment.
- the pressure oil can be provided by a gear pump. In this way, the operation of the clutch assembly can be realized without additional components except the piston, the supply line and a valve.
- the clutch assembly may include an actuator with an actuating piston that actuates both the friction clutch and the dog clutch.
- the actuating piston may be annular, with radially inwardly and radially outwardly cupped walls extending in the radial direction.
- the actuating piston may have a radially extending actuating plate.
- the friction clutch may be designed so that it can absorb negative torques occurring in the pulling direction.
- the friction clutch is designed so that it can handle the negative moments alone. As a result, possible noises of the dog clutch, so a rattling, avoided.
- the dog clutch is then designed so that it can absorb the remaining peak torques in a positive torque direction and also provides a safety margin.
- the friction clutch can transmit 600 Nm. When the peak torques are in the positive direction of 2,000 Nm, the dog clutch is designed to transmit 1,500 Nm. As already described above, the 600 Nm results from the fact that this torque is to be covered in a negative pulling direction.
- the friction clutch can have an input-side hub, with which the input toothing of the dog clutch can be connected in a rotationally fixed manner.
- the input hub of the friction clutch is therefore also the input part of the dog clutch, whereby the parallel connection of the friction clutch and the dog clutch is made.
- a non-rotatable connectivity does not mean that the input teeth of the dog clutch, which is preferably arranged on the jaw element, engages in a toothing incorporated directly into the input hub of the friction clutch.
- a kind of toothed carrier can be firmly connected to the input hub. In this toothing can then intervene the input teeth of the dog clutch.
- the input teeth of the dog clutch can be tracked out. D. h., That is disengaged when disengaging the positive connection of the teeth between the hub and input teeth of the dog clutch.
- the toothing on the output side of the dog clutch may preferably be constantly in engagement with a toothing on the side of the flywheel device.
- the teeth can be integrally incorporated into the part of the flywheel device, which is in contact with the dog clutch.
- a kind of toothed carrier is firmly connected to the flywheel mass device and a multipart design of the flywheel device is present. This is manufacturing technology considerably easier to manufacture than a one-piece design of the flywheel device.
- the clutch assembly may be formed as a mounting unit. It is then a preassembled module that can be used in the drive train.
- the invention relates to a drive train unit with a clutch assembly and at least part of a flywheel device.
- the clutch assembly is to be used as a fly-starting clutch in a hybridized drive train. It is not a starting clutch, but a clutch for starting the internal combustion engine.
- the drivetrain stands out Accordingly, characterized in that the clutch assembly is formed as described.
- the output side of the friction clutch is rotatably connected to the flywheel device.
- the claw member is mounted on the flywheel device.
- the dog clutch is spitted to disengage. On one side of the dog clutch so no permanent connection of the teeth but only an intervention in the engaged state is provided.
- the flywheel device can be designed as a dual-mass flywheel. Then, the output side of the friction clutch is connected to the primary side of the dual mass flywheel. Likewise, the output teeth of the dog clutch with the primary side of the dual mass flywheel is connected or connectable.
- a single-mass flywheel could also be used.
- the coupling points should be the same as for the dual mass flywheel.
- the friction clutch and / or dog clutch may comprise an actuating device which is actuated by means of pressure oil and the flywheel device be adapted to receive a portion of the pressure chamber.
- the flywheel device form part of the wall of the pressure chamber, but it can also absorb a wall element of the pressure chamber and support it so.
- the flywheel device can also consist of several components.
- the flywheel mass device can accommodate a part of the wall of the pressure chamber, wherein the output toothing of the dog clutch simultaneously acts on this component. This results in an extremely compact design of the drive train, since the pressure chamber simultaneously forms the output of the dog clutch.
- a pressure oil supply lead through the flywheel device.
- the pressure oil supply of the pressure oil supply of the actuator of the friction clutch and / or the dog clutch may be.
- the pressure oil supply can lead in the formation of the flywheel device as a dual mass flywheel through the primary part of the dual mass flywheel.
- the drive train can have a separating clutch on the output side of the flywheel mass device. This serves to separate the electric motor from the internal combustion engine, so that in electric motor operation, the drag torque of the internal combustion engine does not have to be overcome.
- the drive train may have an electric motor on the output side of the flywheel device. The electric motor is preferably coupled in P2 arrangement to the drive train.
- Fig. 3 is a detail view of a dog clutch
- FIG. 4 is a coupling arrangement in a second embodiment.
- FIG. 1 shows a drive train 1 with an internal combustion engine 2, a
- Flywheel clutch assembly 3 a flywheel device 4, a clutch 5, an electric motor 6 and a transmission 7.
- the electric motor 6 can be configured as a single electric motor or as series-connected electric motors, it is essential here that the electric motor 6 in front of the transmission 7 on the drive train attacks.
- the flywheel clutch assembly 3 is characterized by its position in front of the flywheel device 4. This is due to the particular function of the flywheel clutch assembly 3, which only serves for the high travel of the internal combustion engine 2 and otherwise transmits the torque of the internal combustion engine 2.
- the flywheel clutch assembly 3 By providing the flywheel clutch assembly 3, it is possible to design the electric motor 6 with lower power reserves, whereby it is cheaper to produce.
- the flywheel clutch assembly 3 separates the engine 2 from the remainder of the drive train in purely electronic operation, the electric motor 6 thus drives the flywheel device 4 as an energy store in purely electric motor operation.
- the additional power which the electric motor 6 has to apply for this purpose in purely electromotive operation is less than the power reserve that would be required if the electric motor 6 had to accelerate not only this but also the flywheel device 4 for starting the internal combustion engine.
- the fly-starting clutch assembly 3 is not a starting clutch since it is not used to move the motor vehicle. Regardless of whether or not the motor vehicle is already in motion, the fly-starting clutch assembly 3 merely serves to start the engine 2. It is therefore of interpretation, for example, in relation to the abovementioned transport of heat can be interpreted differently than a starting clutch. In this respect, the different function, for example, in the amount of material of the pressure plate noticeable.
- FIG. 2 shows a swing start clutch arrangement 3 in a first embodiment.
- the flywheel clutch assembly 3 has a friction clutch 8 and a dog clutch 9 arranged parallel thereto.
- the friction clutch 8 is designed as a dry-running friction clutch. It is designed in particular as a single-disk friction clutch and accordingly comprises a pressure plate 10 and a clutch disk 12.
- the input side of the friction clutch 8 is connected to the crankshaft 14, via the hub 16.
- the hub 16 by means of screws 18 with the Be screwed crankshaft 14.
- the clutch plate 12 is secured to the input hub 16 by means of rivets 20 and tangential leaf springs 22.
- the clutch sprocket 12 is thus rotatably connected to the crankshaft 14.
- the tangential leaf springs 22 provide for an axial displaceability of the clutch disc 12, which can also be realized differently.
- the hub 16 need not have a hub disc 24 on which the tangential leaf springs 22 or the clutch disc 12 engage.
- the diaphragm spring 34 is secured by means of rivets 36 on the primary side 38 of the flywheel device 4. However, this is not mandatory, as shown for example in FIG.
- the pressure plate 10 is axially displaceably mounted on the housing 32 via the tangential leaf springs 30 as in this type of friction clutch. About the diaphragm spring 34, the friction clutch 8 can be disengaged.
- the friction clutch 8 is thus designed as a normally-closed clutch.
- the dog clutch 9 also connects the crankshaft 14 with the primary side 38 of the flywheel device 4.
- the output teeth 46 of the dog clutch 9 and the jaw member 42 however, with the primary side 38 or generally with the flywheel device 4 is engaged.
- the teeth on the side of the hub 16 and on the primary side 38 is not part of the dog clutch 9.
- these can also be considered or designed as part of the dog clutch.
- the flywheel clutch assembly 3 has an actuator 48 for actuating the friction clutch 8 and the dog clutch 9.
- Actuator 48 is controlled by pressurized oil which axially displaces an actuating piston 50.
- the actuating piston 50 is annular, radially inwardly and radially outwardly, it has a wall 52 and 54, respectively.
- the wall 52 is in contact with the diaphragm spring 34 and the wall 54 with a projection 56 which is arranged on the jaw member 42.
- the fact that the wall 52 is higher than the wall 54 and also due to the arrangement of the friction clutch 8 in comparison to the dog clutch 9, the friction clutch 8 is actuated earlier, d. H. engaged and disengaged as the dog clutch 9.
- the pressure chamber is limited not only by the piston 50, but also by the connecting element 56.
- the connecting element 56 is part of the primary side 38 of the flywheel device 4.
- the primary side 38 is thus formed in several parts, the main body 58 is a kind of skeleton, on the the connection element 56 is attached.
- the primary side 38 and thus the flywheel device 4 also receives the pressure chamber 60.
- a supply line 62 to the pressure chamber 60 leads through the primary side 38.
- the connection element 56 fulfills a dual function. On the one hand, it forms the wall of the pressure chamber 60, on the other hand, it has a toothing 64, which is in engagement with the output teeth 46 of the jaw member 42.
- the teeth 46 and 64 are preferably always engaged, that is, regardless of whether the dog clutch 9 is switched on or disengaged. This is realized via the axial length of the teeth 46 and 64.
- FIG. 3 shows the claw element 42 in detail.
- the input teeth 40 is designed with two teeth 66 and 68, so that when there is an axial movement to the left no longer covering with the counter teeth and so the adhesion is repealed. Then the input teeth 40 is madepurt.
- the counter-toothing is arranged on the driver element 44 as described above and consists of the toothings 70 and 72.
- the output toothing 46 is much longer in the axial direction, so that the counter toothing 64 is not spitted out even with an axial displacement relative to the toothing 46 and thus remains constantly in engagement.
- the diaphragm spring is not attached to the primary side 38 of the flywheel device 4 but on a driver plate 76, whereby the flywheel clutch assembly can be installed as a completely pre-assembled module.
- the flywheel clutch assembly 3 can then be screwed to the flywheel assembly 4.
- Only output-side elements are screwed.
- the structure of Figure 4 agrees in many details with the structure of Figure 2, which is why the same reference numerals are used.
- the actuating piston 82 is no longer provided with walls in contrast to Figure 2, but it consists more or less of a straight front, also referred to as actuator plate, which can move both the diaphragm spring 34 as well as the jaw member 80 axially. However, the piston 82 is still annular.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017209398.6A DE102017209398A1 (en) | 2017-06-02 | 2017-06-02 | Coupling arrangement and drive train unit |
PCT/EP2018/061748 WO2018219595A1 (en) | 2017-06-02 | 2018-05-08 | Clutch arrangement, and drive train unit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3631225A1 true EP3631225A1 (en) | 2020-04-08 |
Family
ID=62196526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18725431.3A Withdrawn EP3631225A1 (en) | 2017-06-02 | 2018-05-08 | Clutch arrangement, and drive train unit |
Country Status (5)
Country | Link |
---|---|
US (1) | US11732762B2 (en) |
EP (1) | EP3631225A1 (en) |
CN (1) | CN110709615B (en) |
DE (1) | DE102017209398A1 (en) |
WO (1) | WO2018219595A1 (en) |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3245508A (en) * | 1966-04-12 | Damper | ||
US2738864A (en) * | 1951-08-18 | 1956-03-20 | Borg Warner | Clutch belleville spring type |
US3584720A (en) * | 1969-06-27 | 1971-06-15 | Int Harvester Co | Clutch discs with rubbers separators |
SE375361B (en) * | 1973-07-05 | 1975-04-14 | Stal Laval Turbin Ab | |
US4869354A (en) * | 1987-03-17 | 1989-09-26 | Glen Brazier | Flywheel disengagement assembly |
US5048654A (en) * | 1990-07-20 | 1991-09-17 | Borg-Warner Automotive, Inc. | Ceramic clutch separator plates |
EP1736345A1 (en) * | 2005-06-22 | 2006-12-27 | Zf Friedrichshafen Ag | Drive module with electric motor |
US8905212B2 (en) * | 2008-04-16 | 2014-12-09 | Borgwarner, Inc. | Synchro-lock clutch-combination friction and mechanical locking clutch |
DE102009003108B4 (en) * | 2009-05-14 | 2017-08-10 | Zf Friedrichshafen Ag | Drive arrangement with two input-side couplings |
DE102009045562A1 (en) * | 2009-10-12 | 2011-04-14 | Zf Friedrichshafen Ag | Coupling arrangement for drive strand of vehicle, comprises multi-disk coupling, interrupter coupling and drive device, particularly internal combustion engine, where another drive device is provided as electric motor |
JP5929163B2 (en) * | 2011-12-22 | 2016-06-01 | アイシン精機株式会社 | Hybrid vehicle drive device |
CN202986798U (en) * | 2012-10-08 | 2013-06-12 | 刘培生 | Dynamic mixing device of hybrid electric vehicle |
CN103983436B (en) * | 2013-02-07 | 2016-07-06 | 重庆长安汽车股份有限公司 | A kind of brake friction, heating, vibration coupling testing stand |
DE102014213818A1 (en) * | 2014-07-16 | 2016-01-21 | Schaeffler Technologies AG & Co. KG | drive arrangement |
DE112014006807B4 (en) * | 2014-07-16 | 2021-12-23 | Allison Transmission, Inc. | Connection and disconnection device for a vehicle drive train |
DE102015211436A1 (en) * | 2014-07-25 | 2016-01-28 | Schaeffler Technologies AG & Co. KG | drive arrangement |
JP6168023B2 (en) * | 2014-10-07 | 2017-07-26 | トヨタ自動車株式会社 | Vehicle clutch mechanism |
DE102017205942A1 (en) * | 2017-04-06 | 2018-10-11 | Bayerische Motoren Werke Aktiengesellschaft | Drive device with a coupling device, drive system with this drive device and method for operating the drive system |
-
2017
- 2017-06-02 DE DE102017209398.6A patent/DE102017209398A1/en active Pending
-
2018
- 2018-05-08 CN CN201880036711.0A patent/CN110709615B/en active Active
- 2018-05-08 EP EP18725431.3A patent/EP3631225A1/en not_active Withdrawn
- 2018-05-08 WO PCT/EP2018/061748 patent/WO2018219595A1/en active Application Filing
- 2018-05-08 US US16/617,407 patent/US11732762B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN110709615B (en) | 2021-09-14 |
US11732762B2 (en) | 2023-08-22 |
DE102017209398A1 (en) | 2018-12-06 |
CN110709615A (en) | 2020-01-17 |
WO2018219595A1 (en) | 2018-12-06 |
US20210123483A1 (en) | 2021-04-29 |
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