EP3934927A1 - Hybrid module having a separating clutch and actuation unit without compensation, and drive train - Google Patents
Hybrid module having a separating clutch and actuation unit without compensation, and drive trainInfo
- Publication number
- EP3934927A1 EP3934927A1 EP20705882.7A EP20705882A EP3934927A1 EP 3934927 A1 EP3934927 A1 EP 3934927A1 EP 20705882 A EP20705882 A EP 20705882A EP 3934927 A1 EP3934927 A1 EP 3934927A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure chamber
- hybrid module
- carrier
- clutch
- separating 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- Withdrawn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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- 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
- B60K6/22—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
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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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
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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
- 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
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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
- F16D25/00—Fluid-actuated clutches
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
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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
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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
- F16D21/02—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
- F16D21/06—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
- F16D2021/0661—Hydraulically actuated multiple lamellae 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
- F16D21/00—Systems comprising a plurality of actuated clutches
- F16D21/02—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
- F16D21/06—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
- F16D2021/0692—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric with two clutches arranged axially without radial overlap
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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
- F16D43/00—Automatic clutches
- F16D43/28—Automatic clutches actuated by fluid pressure
- F16D43/284—Automatic clutches actuated by fluid pressure controlled by angular speed
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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 hybrid module for a drive train of a motor vehicle, such as a car, truck, bus or other utility vehicle, with a housing, an input shaft that can be rotated relative to the housing and can be connected to an internal combustion engine, an electrical machine, and a rotor of the electrical machine rotatably coupled carrier, a separating clutch acting between the input shaft and the carrier, and a hydraulic actuating unit designed to adjust the separating clutch between a closed position and an open position, the actuating unit having a sliding element which acts on several friction elements of the separating clutch and which slide element to its first axial side encloses a hydraulic pressure chamber with the carrier and is acted upon by a restoring spring unit with an axial restoring force towards its second axial side.
- a motor vehicle such as a car, truck, bus or other utility vehicle
- Hybrid modules of the generic type with rotary feedthroughs are known, for example, from WO 2019/015714 A1.
- the centrifugal forces acting during operation can lead to pressure fluctuations within the pressure chamber.
- a compensation chamber is usually used to compensate for these pressure fluctuations caused by centrifugal force.
- the object of the present invention to eliminate the disadvantages known from the prior art and, in particular, to provide a hybrid module which, in spite of (mechanical) centrifugal force compensation, has a compact structure.
- This is achieved according to the invention in that the restoring spring unit and the pressure chamber are designed and coordinated with one another in such a way that, when the hybrid module is operating, with a rotating carrier up to a speed of at least 3000 rpm, the restoring force generated by the restoring spring is greater than one is generated by a centrifugal force in the pressure chamber, axially opposite to the restoring force acting on the sliding element in the direction of the closed position, axial Ver adjusting force of the pressure chamber.
- the actuation unit is formed without a compensation chamber.
- the resetting spring unit which is so strongly designed, has the effect that additional components previously used for putting the compensation chamber can be omitted. This makes the structure much more compact.
- the return spring unit it has been found to be expedient for use in higher-speed vehicles if the return spring unit and the pressure chamber are designed and coordinated in such a way that in operation, with a rotating carrier, up to a speed of at least 4000 rev / min, preferably at least 6000 rpm, more preferably at least 8000 rpm, particularly preferably at least 10,000 rpm, the restoring force generated by the return spring unit is greater than the axial displacement force of the pressure chamber generated by the centrifugal force in the pressure chamber.
- the return spring unit has a plurality of spring elements, each of which is preferably implemented as helical compression springs, the highest possible return force can be generated.
- a hydraulic rotary feedthrough is provided in the carrier which is connected to the pressure chamber and is further connected to a channel system on the housing side.
- the rotary feedthrough is designed to save space.
- the actuating collar of the sliding element extends radially outside the pressure chamber is implemented directly as a pressure pot and interacts with the friction elements of the separating clutch. The sliding element is thus made particularly compact axially.
- the sliding element is formed in one piece from a sheet of metal.
- the sliding element has an axially projecting guide collar directly, which guide collar is guided displaceably on a mounting base of the carrier, the construction of the actuating unit is further simplified.
- the mounting base is expediently mounted so that it can rotate further relative to the housing by means of a support bearing.
- a second device sealing the pressure chamber is received on the carrier in a non-displaceable manner.
- the separating clutch If, in addition to the separating clutch, there is at least one further clutch axially offset from the separating clutch, it can be further connected to a transmission.
- the invention also relates to a drive train for a motor vehicle with a hybrid module according to the invention according to at least one of the embodiments described above.
- a coupling KO separating coupling
- a rotary leadthrough is implemented without compensation.
- a return spring (return spring unit) of the separating clutch is particularly well designed.
- FIG. 1 shows a longitudinal sectional illustration of a hybrid module according to the invention, designed according to a preferred exemplary embodiment, the cut components being shown without hatching.
- the hybrid module 1 is typically implemented as a combined structural unit made up of an electrical machine 5 (for the sake of clarity, it is only shown on the part of its rotor 6) and at least one, here even three clutches 8, 25a, 25b.
- the hybrid module 1 is arranged during operation in a drive train 2 of a motor vehicle, which is indicated in principle in FIG. 1.
- the hybrid module 1 is viewed along a central axis of rotation 28, inserted between an output shaft of an internal combustion engine and several transmission input shafts of a transmission.
- the presence of the electric machine 5 means that the hybrid module 1 is used to implement the hybrid drive train 2.
- the hybrid module 1 has an input shaft 4.
- the input shaft 4 is non-rotatably connected to the output shaft of the internal combustion engine during operation.
- the input shaft 4 is rotatably mounted relative to a partially shown housing 3 of the hybrid module 1.
- the input shaft 4 penetrates the housing 3 and protrudes into an interior of the hybrid module 1 / the housing 3.
- the input shaft 4 is connected to a separating clutch 8.
- the separating clutch 8, which is realized here as a multi-plate clutch, namely friction plate steering clutch, has a first clutch component 29a, which rotates is firmly connected to the input shaft 4.
- a pot-shaped lamellar carrier 30 of the separating clutch 8 is fastened directly rotating test on the input shaft 4 be.
- the first clutch component 29a of the separating clutch 8 has, in addition to the disk carrier 30, a plurality of first friction elements 10a which are rotatably mounted on the disk carrier 30 but are axially displaceable relative to one another.
- the carrier 7 forms a sleeve-shaped torque transmission region 31, on the radial outer side 32 of which the rotor 6 of the electrical machine 5 is received directly.
- the torque transmission area 31 has an internal toothing 33, which internal toothing 33 forms the second clutch component 29b directly.
- the first friction elements 10a and the second friction elements 10b of the separating clutch 8 are typically arranged alternately to one another in the axial direction. Consequently, the first friction elements 10a and the second friction elements 10b are arranged axially at the same height as the torque transmission region 31 / the rotor 6 and radially within the torque transmission region 31. In an open position of the separating clutch 8, the friction elements 10a, 10b are rotationally decoupled from one another; in a closed position of the separating clutch 8, the friction elements 10a, 10b are pressed against one another with a frictional connection.
- a hydraulic actuation unit 9 is provided, which is implemented according to the embodiment of the invention.
- the actuation unit 9 is equipped with a sliding element 11.
- the sliding element 11 is received directly on the carrier 7 and is thus coupled to it in a rotationally fixed manner.
- the Schiebeele element 1 1 is formed in one piece from a sheet metal.
- the sliding element 11 forms a piston area 34 on a radial inside, which piston area 34 in a receiving space 35 of the carrier 7, with the formation of a sealed hydraulic pressure chamber 13 is performed.
- the receiving space 35 is implemented in particular as an annular circumferential recess.
- the sliding element 11 faces towards its first axial side 12a the region of the Trä gers 7 forming the receiving space 35 and includes the pressure space 13 with it.
- a remindstellfe derritt 14 acts directly on the sliding element 11.
- the sliding element 11 has a radially inner side of the piston area 34 egg NEN axially protruding guide collar 19.
- the guide collar 19 is immediacy bar on a mounting base 21 of the carrier 7, which also extends in the axial direction Rich out.
- the bearing base 21 is in turn implemented here in the form of a roller bearing, namely ball bearings, relative to the housing 3 by means of a support bearing 27.
- the bearing base 21 is penetrated by a radial connecting channel 36 which connects directly to a hydraulic channel system 16 of the hous ses 3 and together with this forms a rotary leadthrough 17.
- a hydraulic medium can consequently be fed to the pressure chamber 13 or removed from it during operation in order to adjust the separating clutch 8.
- Fig. 1 an open position of the separating clutch 8 is implemented.
- hydraulic pressure is applied to the pressure chamber 13 and as soon as this pressure exceeds a restoring force generated by the restoring spring unit 14, the sliding element 11 is moved in such a way that it frictionally presses the Rei elements 10a, 10b against one another.
- the sliding element 11 is equipped radially outside the Kol ben Schemees 34 and the pressure chamber 13 with an actuating collar 18, which also protrudes axially.
- the actuating collar 18 serves directly as Pressure pot and acts in this embodiment on an end arranged second Rei belement 10b of the clutch 8 adjusting.
- This second friction element 10b arranged at the end is also referred to as a pressure plate.
- the restoring spring unit 14 and the pressure chamber 13 are formed and coordinated with one another in such a way that when the hybrid module 1 is in operation, with the carrier 7 rotating up to a speed of 10000 rpm, the restoring force generated by the restoring spring unit 14 is greater than that generated by a centrifugal force generated in the pressure chamber 13, axially opposite to the restoring force acting on the sliding element 11, axial adjustment force of the pressure chamber 13 is.
- the sliding element 11 below a speed of 10,000 rpm and in the absence of additional pressurization of the pressure chamber 13 with hydraulic pressure, the sliding element 11 thus remains in a position / rest position corresponding to the open position of the separating clutch 8, as shown in FIG.
- the second axial side 12b can thus be converted freely from a compensation chamber. There is thus no compensation chamber implemented in the entire actuation unit 9.
- the return spring unit 14 is shown in Fig. 1 only on the part of a spring element 15 in the form of a helical compression spring. In principle, according to further embodiments, it is also advantageous if the return spring unit 14 has a plurality of spring elements 15. These several spring elements 15 are preferably arranged distributed in the circumferential direction Rich. However, it is also advantageous if several spring elements 15 are combined in a common spring assembly and, for example, a first spring element designed as a helical compression spring is located within a further second spring element, also designed as a helical compression spring. The formation of a plate spring as the spring element 15 is also implemented in further embodiments according to the invention. The spring element 15 is supported according to FIG.
- a centering element 37 which is firmly supported on the carrier 7, is supported via a securing ring 38 which is received directly on the carrier 7.
- a first seal 22 is axially fixed in a recess 23 of the bearing base 21 in the carrier 7, namely in the mounting base 21.
- This first seal 22 serves to seal a first ra-media gap, between the bearing base 21 and the guide collar 19, to a radial inside of the pressure chamber 13 out.
- a further second seal 24 is applied directly to the sliding element 11 in this embodiment. This second seal 24 serves to seal a second radial gap between the carrier 7 and the sliding element 11, towards a radial outside of the pressure chamber 13.
- two clutches 25a, 25b each forming a partial clutch of a double clutch 26, are provided in the hybrid module 1, so that the hybrid module 1 as a whole has a triple clutch.
- the two partial clutches 25a, 25b are each inserted between the carrier 7 and a transmission input shaft of a transmission, not shown here for the sake of clarity.
- the first partial clutch 25a is inserted between the carrier 7 and a first transmission input shaft and the second partial clutch 25b between the carrier 7 and a second transmission input shaft.
- the separating clutch 8 with its friction elements 10a, 10b is arranged in the radial direction at the same height as a plurality of friction elements 39a, 39b of the first partial clutch 25a.
- a plurality of friction elements 40a, 40b of the second partial clutch 25b are arranged radially within the friction elements 39a, 39b of the first partial clutch 25a and the friction elements 10a, 10b of the separating clutch 8.
- the first and second friction elements 40a, 40b of the second partial clutch 25b are also arranged in the axial direction at the same height as the rotor 6.
- the structure of the first and second partial clutches 25a, 25b corresponds to the usual structure of a friction disk clutch, as it is already implemented by the separating clutch 8.
- the partial clutches 25a, 25b are actuated via a further clutch actuation system 20, which in turn has a subunit for each partial clutch 25a, 25b.
- the clutch actuation system 20 is arranged at least partially radially inside the friction elements 40a, 40b of the second partial clutch 25b.
- a possibility is given to reduce the axial installation space and to dispense with a separate speed compensation of the clutch K0 (separating clutch 8).
- a return spring return spring unit 14
- a return spring is designed to be particularly strong.
- the usual, previously implemented compensation with compensation chamber works as follows:
- the clutch K0 is actuated via a pressure pot (sliding element 1 1).
- the required force is generated by oil pressure in the pressure chamber 13.
- the oil pressure is provided by the transmission hydraulics.
- a return spring 14 has the effect that the pressure pot 11 only moves from a certain oil pressure and that the clutch 8 closes.
- the clutch 8 begins to rotate, the oil in the pressure chamber 13 also rotates.
- the centrifugal forces acting there generate a so-called centrifugal oil pressure in the pressure chamber 13, which also acts on the pressure pot 11. If this centrifugal oil pressure is greater than the restoring force of the restoring spring 14, the clutch 8 begins to close without this being intended.
- the compensation chamber / compensation space has so far been located on the rear side 12b of the pressure pot 11.
- the compensation chamber is limited by a seal carrier.
- the compensation space is filled with pressureless oil.
- the return springs 15 are reinforced and thus the remindstellfe derkraft is greater than the force resulting from the centrifugal oil pressure in the pressure chamber 13. Or the number of return springs 15 is increased so that the return spring force is also greater than the force resulting from the centrifugal oil pressure in the pressure chamber 13.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hybrid Electric Vehicles (AREA)
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019105789 | 2019-03-07 | ||
PCT/DE2020/100035 WO2020177798A1 (en) | 2019-03-07 | 2020-01-20 | Hybrid module having a separating clutch and actuation unit without compensation, and drive train |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3934927A1 true EP3934927A1 (en) | 2022-01-12 |
Family
ID=69630104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20705882.7A Withdrawn EP3934927A1 (en) | 2019-03-07 | 2020-01-20 | Hybrid module having a separating clutch and actuation unit without compensation, and drive train |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220185091A1 (en) |
EP (1) | EP3934927A1 (en) |
CN (1) | CN113543997A (en) |
DE (1) | DE102019115904A1 (en) |
WO (1) | WO2020177798A1 (en) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4336778A (en) * | 1980-02-29 | 1982-06-29 | Delta Systems, Inc. | Safety limiter for engine speed |
DE10004186B4 (en) * | 1999-09-30 | 2013-03-07 | Volkswagen Ag | Multiple clutch device |
AT4445U1 (en) * | 1999-12-07 | 2001-07-25 | Steyr Daimler Puch Ag | POWER TRANSMISSION UNIT WITH A SPEED DIFFERENTIAL-RELATED HYDRAULIC CLUTCH |
JP2008106902A (en) * | 2006-10-27 | 2008-05-08 | Nok Corp | Seal-integrated piston |
DE102009039223B8 (en) * | 2009-08-28 | 2013-05-08 | Getrag Ford Transmissions Gmbh | Dual clutch arrangement for a transmission with two input shafts |
DE102010062247A1 (en) * | 2010-12-01 | 2012-06-06 | Zf Friedrichshafen Ag | Device for controlling a rotating switching element of an automatic transmission for a start-stop operation |
DE102016125078A1 (en) * | 2016-10-06 | 2018-04-12 | Schaeffler Technologies AG & Co. KG | Coupling device and hybrid module |
DE102016219682A1 (en) * | 2016-10-11 | 2018-04-12 | Schaeffler Technologies AG & Co. KG | coupling device |
DE102017127219A1 (en) | 2017-07-18 | 2019-01-24 | Schaeffler Technologies AG & Co. KG | Hybrid module with self-contained force flow of actuating forces |
US11254200B2 (en) * | 2018-03-28 | 2022-02-22 | Aisin Corporation | Vehicle drive device |
DE102018205463A1 (en) * | 2018-04-11 | 2019-10-17 | Zf Friedrichshafen Ag | Hybrid drive module for a motor vehicle |
-
2019
- 2019-06-12 DE DE102019115904.0A patent/DE102019115904A1/en active Pending
-
2020
- 2020-01-20 WO PCT/DE2020/100035 patent/WO2020177798A1/en active Application Filing
- 2020-01-20 CN CN202080017571.XA patent/CN113543997A/en active Pending
- 2020-01-20 EP EP20705882.7A patent/EP3934927A1/en not_active Withdrawn
- 2020-09-10 US US17/432,157 patent/US20220185091A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2020177798A1 (en) | 2020-09-10 |
US20220185091A1 (en) | 2022-06-16 |
DE102019115904A1 (en) | 2020-09-10 |
CN113543997A (en) | 2021-10-22 |
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