EP4097376A1 - Antriebssystem für ein fahrzeug - Google Patents
Antriebssystem für ein fahrzeugInfo
- Publication number
- EP4097376A1 EP4097376A1 EP21701993.4A EP21701993A EP4097376A1 EP 4097376 A1 EP4097376 A1 EP 4097376A1 EP 21701993 A EP21701993 A EP 21701993A EP 4097376 A1 EP4097376 A1 EP 4097376A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- area
- assembly
- drive system
- clutch
- interruption
- 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- Withdrawn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
-
- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
-
- 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
- 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 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 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 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
- 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 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 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
-
- 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
- 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 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 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H2045/005—Combinations of fluid gearings for conveying rotary motion with couplings or clutches comprising a clutch between fluid gearing and the mechanical gearing unit
-
- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0205—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type two chamber system, i.e. without a separated, closed chamber specially adapted for actuating a lock-up clutch
-
- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
-
- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0278—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch comprising only two co-acting friction surfaces
-
- 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 present invention relates to a drive system for a vehicle having a drive system input area to be coupled to a drive unit and a drive system output area to be coupled to a transmission arrangement and an electric machine.
- Such a drive system is known from US Pat. No. 8,298,105 B2.
- a start-up assembly in the form of a hydrodynamic torque converter with a with a housing by means of a hitch be connectable pump impeller and in an interior of the housing is arranged and coupled to an output area of the start-up assembly Turbi nenrad procedure.
- a coupling acting between the pump wheel and the turbine wheel can bridge the hydrodynamic circuit built up with the pump wheel, the turbine wheel and a stator and thus provide a fixed mechanical torque transmission connection from the housing providing an input area of the start-up assembly to the output area of the start-up assembly.
- An electric machine is positioned outside the housing of the starting assembly and is coupled to the pump wheel in order to apply drive torque to the output area of the starting assembly and thus also an output area of the drive system via the pump wheel, the clutch acting between the pump wheel and the turbine wheel and the turbine wheel transfer.
- a drive system for a vehicle comprising: a drive system to be coupled to a drive unit.
- a start-up assembly comprising a start-up assembly input area that is coupled to or provides the drive system input area and a start-up assembly output area coupled with or providing the drive system output area
- the start-up assembly in the torque transmission path between the start-up assembly input area and the start-up assembly output area comprises a hydrodynamic circuit with a pump wheel and a turbine wheel, an interrupt coupling in the torque transmission path between the turbine wheel and the start-up assembly output area, with the start-up assembly input area connected to the start-up assembly output area for torque transmission in an engaged state is and in a disengaged state of the interrupter clutch of the starting assembly input area is not connected to the starting assembly output area, one with the start HR module output area and / or the drive system output area coupled electric machine.
- the interruption coupling is arranged in the torque flow after the turbine wheel of the hydrodynamic circuit, the entire hydrodynamic circuit is decoupled from the starting assembly output area in the disengaged state of the interruption coupling. This means that in an operating state in which a drive torque is supplied by the electric machine, no system areas assigned to the hydrodynamic circuit are dragged along.
- the start-up assembly comprises a housing filled or fillable with fluid, the pump wheel being provided on the housing and the turbine wheel being arranged in a housing interior, and that the interruption coupling is arranged in the housing interior and the electric machine outside the housing interior is arranged.
- the start-up assembly can for example be designed as a hydrodynamic torque converter and comprise a stator in association with the pump wheel and the turbine wheel.
- the start-up assembly can include a lock-up clutch, the lock-up clutch being designed to establish a torque transmission connection between the start-up assembly input area and the interruption clutch while at least partially bridging the hydrodynamic circuit.
- an output area of the lock-up clutch be coupled to an input area of the break-up clutch.
- the output area of the lock-up clutch can be coupled to an input area of the interruption clutch via at least one torsional vibration damper.
- an input area of the break clutch includes at least one conical, i.e. frustoconical, input friction surface that is concentric with respect to a starting assembly axis of rotation, and that an output area of the break clutch includes at least one input friction surface with respect to the starting assembly.
- Axis of rotation concentric, conical, i.e. frustoconical, output friction surface comprises, wherein in the engaged state of the interruption clutch each input friction surface is in friction contact with an output friction surface.
- one area of the input area and output area of the interruption clutch comprises at least one friction element which can be displaced in the direction of the starting assembly axis of rotation to carry out actuation processes, and that the other area
- the input area and output area comprise at least one counter-friction element which is axially essentially fixed axially when performing actuation processes with respect to the starting assembly axis of rotation.
- one area of the input area and output area of the interruption clutch can include a friction element that is essentially stationary when performing actuation processes with respect to the starting assembly axis of rotation, with the other area of the input area and output area of the interruption clutch being an axially displaceable element Friction element and the axially essentially stationary friction element of the one area of the input area and output area of the interruption clutch arranged counter-friction element.
- the axially displaceable friction element of one area of the input area and output area of the interruption coupling are axially fixed with respect to the friction element of one area of the input area and output area of the interruption coupling is held non-rotatably.
- the at least one axially displaceable friction element can be assigned an actuating member that can be acted upon by pressurized fluid.
- the actuating element can be pressable against the friction element in order to act on the at least one axially displaceable friction element.
- the actuating element can form part of the axially displaceable friction element.
- a pressure fluid chamber which can be filled with pressure fluid for actuating the interruption coupling is formed between the actuating member and an axially fixed abutment element.
- the number of components for supporting a compact structure can be kept low in that the abutment element comprises a turbine wheel carrier coupled to the input area of the interruption coupling.
- One area can be the input area of the break clutch and the other area can be the output area of the break clutch.
- the start-up assembly input area can include the housing, which can be coupled to a drive shaft of the drive unit, which is designed, for example, as an internal combustion engine, via known coupling means, such as a flexplate or the like.
- the starting assembly output area can comprise an output hub arranged in the housing, which can be coupled by meshing engagement with a transmission input shaft that forms the or part of the drive system output area or with an intermediate shaft coupled to it.
- the invention further relates to a drive train for a vehicle, comprising a drive unit coupled to a transmission arrangement by means of a drive system constructed according to the invention.
- FIG. 1 shows a basic representation of a vehicle with a drive train comprising a drive unit and a transmission arrangement
- FIG. 2 shows the drive train of the vehicle of FIG. 1 in a circuit diagram-like representation
- FIG. 3 shows a partial longitudinal sectional view of a start-up assembly of the drive train of FIG. 2 designed as a hydrodynamic torque converter
- FIG. 4 shows an illustration corresponding to FIG. 3 of an alternative embodiment of a start-up assembly
- FIG. 5 shows an illustration corresponding to FIG. 3 of an alternative embodiment of a start-up assembly
- Fig. 6 shows a detailed view of a further alternative embodiment of a start-up assembly.
- a vehicle shown in principle is designated generally by 10.
- the vehicle 10 comprises a drive train 12 in which the drive torque provided by a drive unit 14 designed as an internal combustion engine is transmitted to driven wheels 16, 18.
- the drive train 12 comprises between the internal combustion engine 14 and a transmission arrangement 20 a drive system, generally designated 22, with a starting assembly 24, an interrupter clutch 26 and an electric machine 28
- Drive torque a support torque are supplied to the vehicle 10 in a hybrid drive mode so well by the drive unit 14 as well as the internal combustion engine 28 to drive.
- the drive unit 14 can be started by means of the electric machine 28.
- the drive unit 14 is decoupled from the region of the drive train 12 following the interruption clutch 26, see above that the vehicle 10 can be driven solely by the electric machine 28 in an electromotive operating mode.
- FIG. 2 illustrates in more detail the area of the drive train 12 which is referred to as drive system 22 in the context of the present invention and which is essentially located between the drive unit 14 and the transmission arrangement 20.
- the drive system 22 comprises, as a central assembly, the start-up assembly 24, which in the illustrated embodiment is designed as a hydrodynamic torque converter with a hydrodynamic circuit 32 built up in a housing 30.
- This hydrodynamic circuit 32 is coupled to the hous se 30, so coupled with this for common rotation Pum penrad 34, a turbine wheel 38 arranged in an interior 36 of the housing 30 and a radial inside between the pump wheel 34 and the turbine wheel 38 to be ordered Idler 40 built up.
- the housing 30 forms a start-up assembly input area 42, via which the torque output by the drive unit 14 is introduced into the start-up assembly 24 and thus the drive system 22.
- the housing 30 can also be viewed as a drive system input area 44 at the same time.
- the housing 30, i.e. the starter assembly input area 42 or the drive system input area 44, can be coupled to a drive shaft of the drive unit 14, in particular a cure shaft of the drive unit 14 designed as an internal combustion engine, for example by means of a flexplate or the like.
- a lock-up clutch 46 is also arranged parallel to the hydrodynamic circuit 32.
- a torque can be transmitted parallel to the hydrodynamic circuit 32 to the turbine wheel 38 or a turbine wheel carrier 48 carrying it and via this to a starting assembly output area 50.
- a torque between the start-up assembly input area 42 and the start-up assembly output area 50 either via the hydrodynamic circuit 32 and thus with the circulation of a fluid present in the housing interior 36, generally oil, or the torque is transmitted via the lockup clutch 46 which establishes a mechanical connection .
- the slip mode of the lock-up clutch 46 a portion of the torque introduced into the start-up assembly 24 can be transmitted to the start-up assembly output area 50 via both torque transmission paths.
- the interruption coupling 26 is also arranged in the housing interior 36.
- An input area 52 of the break clutch 26 is coupled to an output area 54 of the lock-up clutch 46, while an input area 56 of the lock-up clutch is coupled to the housing 30 or is provided by this.
- An output area 58 of the interrupter coupling 26 is coupled to the starting assembly output area 50.
- the interruption coupling 26 arranged in the housing interior 36 creates the possibility of interrupting the torque flow between the starting assembly input area 42 and the starting assembly output area 50 or permitting torque transmission in the starting assembly 24.
- the interrupter clutch 26 is disengaged, no torque is transmitted between the starting assembly input area 42 and the starting assembly output area 50, regardless of the state in which the lockup clutch 46 is.
- the break clutch 26 is engaged, regardless of whether the lock-up clutch 46 is engaged or disengaged, the torque introduced into the starting assembly input area 42 or the torque emitted by the turbine wheel 38 is transmitted to the starting assembly output area 50.
- the starting assembly output area 50 can, as set out below, comprise, for example, an output hub connected to a transmission input shaft 60 or an intermediate shaft coupled to it.
- the intermediate shaft or the transmission input shaft 60 can be a drive system Provide output area 62, via which a torque can be introduced into the transmission arrangement 20.
- the electric machine 28 or a rotor arrangement 64 of the same is coupled to the starting assembly output area 50 or the drive system output area 62 and is thus firmly connected to it for torque transmission.
- the rotor assembly 64 of the electric machine 28, the stator assembly 66 of which can be carried on a stationary assembly can be coupled to the transmission input shaft 60 or an intermediate shaft coupling the transmission input shaft 60 to the starting assembly output area 50.
- a torque in the drive train 12 for starting the drive unit 14 can be transmitted, for example by means of the electric machine 28, when the interruption clutch 26 and also the lockup clutch 46 are engaged.
- a starter could additionally be provided which, for example, is coupled to the starting assembly input area 42 and can provide a starting torque for the drive unit 14.
- a drive torque of the drive unit 14 can be transmitted to the drive system output area 62 and thus to the transmission arrangement 20 when the interruption clutch 26 is engaged.
- the lock-up clutch can be engaged or disengaged or operated in slip mode.
- the electric machine 28 can deliver an assisting torque in order to operate the vehicle 10 in a hybrid drive mode.
- the electric machine 28 can be operated as a generator in this state or in an engine braking state in order to charge a battery present in the vehicle 10.
- the entire engine braking torque can be provided by the electric machine 28 when the interruption clutch 26 provided in the starting assembly 24 is disengaged and the drive unit 14 is thus decoupled. This means that very efficient battery charging can be achieved in recuperation mode, without any system areas of the start-up assembly 24 having to be dragged along with a loss of energy.
- the interruption clutch 26 is disengaged, so that a drive torque is passed solely through the electric machine 28 into the drive system output area 62 and via this into the transmission arrangement 20. In this state, too, no system areas of the start-up assembly 24 leading to significant energy losses have to be dragged along.
- the housing 30 which provides the start-up assembly input area 42 and also the drive system input area 44, is constructed with two housing shells 70, 72.
- the housing shell 70 essentially also provides the pump wheel 34 or a pump wheel shell of the same.
- the turbine wheel 38 or a turbine wheel shell of the same is coupled to the turbine wheel carrier 48, which is rotatably mounted radially on the inside on the output hub 68, for example by riveting.
- the turbine wheel carrier 48 Via the stator 40, the turbine wheel carrier 48 is axially rotatably supported with respect to the housing shell 70 with respect to the latter or also with respect to the stator 40.
- the bridging clutch 46 comprises a clutch piston 74 supported radially on the inside on the output hub 68 so that it can be axially displaced in a fluid-tight manner.
- a fluid pressure built up in the housing interior 36 can press the clutch piston 74 against the housing shell 70 in a manner known per se, thereby engaging the bridging clutch 46.
- the housing 30 thus provides the input area 56 of the lock-up clutch 46 with its housing shell 70.
- the clutch piston 74 forms the output area 54 of the bridging clutch 46. In the embodiment shown, this is coupled via a torsional vibration damper 76 to the turbine wheel carrier 48 providing the input area 52 of the interruption clutch 26 in a radially central section.
- the torsional vibration damper 76 can be constructed in a conventional manner and can include springs arranged one after the other or nested within one another in the circumferential direction, which can be supported on the one hand with respect to the clutch piston 74 and on the other hand with respect to the turbine wheel carrier 48 and thus a Allow limited Relativdre hung between these about an axis of rotation A of the starting assembly 24.
- this has a conical or truncated cone-shaped section 78, which in this embodiment example is an axially essentially fixed friction element 80, in the sense of the present invention a counter-friction element 83, of the input area 52 of the Interrupt coupling 26 provides with an input friction surface formed on its radial inside.
- a ring-shaped friction element 82 has a likewise conical section 84 which is positioned radially inside the conical section 78 of the turbine wheel carrier 48 and on the radial outside of which an output friction surface is provided.
- the friction element 82 is connected, for example, by toothing engagement with a transmission element 86 firmly attached to the output hub 58, for example by welding, in such a way that the friction element 82 and the transmission element 86 are coupled for common rotation about the axis of rotation A and the friction element 82 is coupled axially with respect to the Transmission element 86 can be displaced.
- the interruption coupling 26 further comprises an actuating member 88 which is guided in fluid tightly axially movable manner on the output hub 68.
- a pressure fluid chamber 92 is formed between the actuating member 88 and the transmission element 86 acting as an axially fixed abutment element 90. Via openings formed in the output hub 68 and a channel formed, for example, in the transmission input shaft 60, pressure fluid can be introduced into the pressure fluid chamber 92.
- the pressure fluid presses the actuator 88 in the illustration of FIG.
- a friction pad that increases the frictional force can be provided.
- the friction elements 80, 82 are provided as formed sheet metal parts and, if a friction lining is not provided on any of these friction elements 80, 82, their metallic surface can be brought into frictional interaction with one another.
- a sealing arrangement for a fluid-tight closure of the pressurized fluid chamber 92, a sealing arrangement, generally designated 94, is provided in the example shown on the actuator 80, which comprises, for example, a sealing element 95 fixed on the actuator 80, e.g. can attack cylindrical portion of the transmission element 86 and axially guided with respect to this.
- the above-described electric machine 28 can be coupled to the transmission input shaft 60 in an axial area between the starting assembly 24 and the transmission arrangement.
- the dynamic seals acting radially inward and radially outward between these are not subjected to rotation, but essentially to translation when the actuating element 88 is axially displaced.
- These seals can comprise ring-like sealing elements which can have an open or a closed cross-section.
- the pressure fluid chamber 92 is sealed in a fluid-tight manner by the welded connection of the transmission element 86 to the output hub 68.
- a reset of the actuating member 88 to disengage the interruption clutch 26 can be done, for example, by a spring element acting between this and the turbine wheel carrier 48.
- the friction element 82 can also be biased in the direction of disengaging the interruption clutch 26.
- pressure fluid actuation of the actuator in the direction of disengagement can be provided, for which purpose the fluid pressure built up in the area of the pressure fluid chamber 92 is reduced with respect to the fluid pressure built up in the surrounding area of the housing interior 36.
- several serially arranged torsional vibration dampers can act in the torque transmission path between the output area 54 of the lock-up clutch 46 and the input area 52 of the interruption clutch 26, several serially arranged torsional vibration dampers can act.
- one or more absorbers for example fixed-frequency absorbers or speed-adaptive absorbers, can be coupled to the turbine wheel carrier 48.
- FIG. 4 An alternative embodiment of the start-up assembly 24 is shown in FIG. 4.
- the basic structure of the starting assembly 24 corresponds to the structure described above with reference to FIG. 3, so that reference can be made to the relevant Auscut ments.
- the interruption coupling 26 comprises a basically conically shaped friction element 82 of the output region 58 of the interruption coupling 26 which provides the conical section 84 on the transmission element 86.
- the friction element 82 is designed as an axially fixed friction element and is held in an axially fixed and rotationally fixed manner on the transmission element 86, for example by form-fitting, in particular by tooth-like engagement.
- the friction element 82 thus also provides an axially fixed counter-friction element 83 within the meaning of the present invention.
- the input region 52 of the interruption coupling 26 comprises an axially moveable and as an integral part of the actuating member 88 provided friction element 80 which provides the conical portion 78 corresponding to the conical portion 84 of the friction element 82.
- the input region 52 of the interruption coupling 26 comprises a further, axially fixed friction element 80 'which provides a conical section 78' or is basically already conical in shape.
- the friction element 80 ' is connected to the turbine wheel carrier 48, which is constructed in two parts in the illustrated embodiment, in an axially fixed and rotationally fixed manner, for example by welding and / or a form fit.
- the two input-side friction elements 80, 80 ′ each provide one with one of the two output friction surfaces in frictional engagement input friction surface ready.
- the actuator 88 is axially movable with the friction element 80 formed thereon with respect to the axially fixed friction element 80 'of the input area 52 of the interrupter clutch 26, but is held non-rotatably with respect to this and / or with respect to the turbine wheel carrier 48 by form-fitting or by tooth-like engagement.
- the two friction elements 80, 80 'of the input area 52 of the interruption coupling 26 are arranged radially on both sides with respect to the friction element 82 of the output area 58 of the interruption coupling 26.
- the friction element 80 is pressed with its conical section 78 against the friction element 82, which in turn is located radially on the axially fixed friction element 80 ' supports.
- a doubling of the maximum torque that can be transmitted via the interruption clutch 26 is achieved.
- Multiple staggering of the input and output side friction elements of the break clutch is also possible in order to achieve a corresponding increase in the friction surface pairings that work together and, accordingly, an increase in the maximum transmittable torque.
- the actuating member 88 is supported in an axially movable manner radially on the inside on an axially extending section 96 of the turbine wheel carrier 48. Since a relative rotation between the actuating element 88 and the turbine wheel carrier 48 will not essentially occur in this embodiment, the seal acting between the actuating element 88 and the turbine wheel carrier 48 and the seal provided by the sealing arrangement 94 are both radially inwardly of the pressurized fluid chamber 92 is loaded essentially only in translation and not in rotation.
- a biasing spring acting between this and the transmission element 86 acting as an abutment element 90 can be provided, which can for example be designed as a disc spring or comprise several springs distributed in the circumferential direction, for example helical compression springs or the like can.
- a support element 100 of the sealing arrangement 94 which is provided on the actuating element 88 and contributes to the tight closure of the pressure fluid chamber 92 and is formed from sheet metal material, can at the same time also act as an axial stop for the actuating element 88 in the direction of the turbine wheel carrier 48.
- FIG. 5 shows a modification of the embodiment shown in FIG. 4.
- the actuating member 88 is provided as a component formed separately from the friction element 80 and presses against a radially inner flange section 102 of the friction element 80 in order to engage the interruption clutch 26.
- FIG. 6 Another modification of the start-up assembly 24 is shown in FIG. 6.
- This change relates in particular to the structure of the interruption clutch 26.
- the axially fixed friction element 80, so the counter-friction element 83 of the input area 52 of the interruption clutch 52, is in turn by a conical section 78 of the turbine wheel carrier 48, which, for example, by a radially inward extended portion of a turbine wheel outer shell can be provided, formed and thus coupled to this.
- the only in this case axially movable friction element 82 of the output side 58 of the interruption coupling 26 is provided by a radially outer, conical section 84 of the actuating member 88.
- the actuating member 88 is coupled to the output hub 68 in a rotationally fixed manner radially on the inside in a toothed region 104, but so as to be axially displaceable.
- the radially inner area of the turbine wheel carrier 48 is supported axially in a fluid-tight manner with respect to the output hub 68 by means of corresponding axial bearings, but with respect to this additionally rotatable and also provides the abutment element 90 for the pressure fluid chamber 92.
- the actuating member 88 is connected to the output hub 68 in a fluid-tight and axially movable manner.
- the actuating element 88 in the illustration in FIG to acted upon, whereby the two friction linings 80, 82 of the input area 52 and the output area 58 of the interruption clutch 26 are pressed into mutual friction position and the interruption clutch 26 arrives in its engaged state.
- the axial support acting radially on the inside on the turbine wheel carrier 48 is designed in such a way that it also ensures a fluid-tight seal of the pressure fluid chamber 92 at the same time.
- the supply or discharge of pressurized fluid to or from the pressurized fluid chamber 92 can take place via openings provided in the output hub 68 or one or more channels provided in the shaft that is non-rotatably coupled to the output hub 68.
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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)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Arrangement Of Transmissions (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020200886.8A DE102020200886A1 (de) | 2020-01-27 | 2020-01-27 | Antriebssystem für ein Fahrzeug |
| PCT/EP2021/051648 WO2021151844A1 (de) | 2020-01-27 | 2021-01-26 | Antriebssystem für ein fahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4097376A1 true EP4097376A1 (de) | 2022-12-07 |
Family
ID=74285484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21701993.4A Withdrawn EP4097376A1 (de) | 2020-01-27 | 2021-01-26 | Antriebssystem für ein fahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4097376A1 (de) |
| DE (1) | DE102020200886A1 (de) |
| WO (1) | WO2021151844A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61189330A (ja) * | 1985-02-13 | 1986-08-23 | Toyota Motor Corp | クラツチ装置 |
| US5697466A (en) * | 1992-11-12 | 1997-12-16 | Kabushikikaisha Equos Research | Hybrid vehicle |
| DE19945475B4 (de) | 1998-10-01 | 2016-04-07 | Schaeffler Technologies AG & Co. KG | Kraftübertragungseinrichtung |
| DE102007053970A1 (de) | 2006-11-29 | 2008-06-05 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Kraftübertragungsvorrichtung, Antriebsstrang mit Kraftübertragungsvorrichtung und Verfahren zur Steuerung der Betriebsweise einer Kraftübertragungsvorrichtung in einem Antriebsstrang |
| KR100773927B1 (ko) | 2006-12-07 | 2007-11-06 | 한국파워트레인 주식회사 | 하이브리드 차량용 토크 컨버터 |
| US8298105B2 (en) | 2008-09-30 | 2012-10-30 | Aisin Seiki Kabushiki Kaisha | Hybrid drive device |
| JP6649950B2 (ja) * | 2014-09-22 | 2020-02-19 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | 単一のダンパを備えたハイブリッド駆動モジュール |
-
2020
- 2020-01-27 DE DE102020200886.8A patent/DE102020200886A1/de not_active Withdrawn
-
2021
- 2021-01-26 EP EP21701993.4A patent/EP4097376A1/de not_active Withdrawn
- 2021-01-26 WO PCT/EP2021/051648 patent/WO2021151844A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020200886A1 (de) | 2021-07-29 |
| WO2021151844A1 (de) | 2021-08-05 |
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