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WO2018145690A1 - Dispositif d'actionnement conçu pour un embrayage et procédé de production - Google Patents

Dispositif d'actionnement conçu pour un embrayage et procédé de production Download PDF

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Publication number
WO2018145690A1
WO2018145690A1 PCT/DE2018/100018 DE2018100018W WO2018145690A1 WO 2018145690 A1 WO2018145690 A1 WO 2018145690A1 DE 2018100018 W DE2018100018 W DE 2018100018W WO 2018145690 A1 WO2018145690 A1 WO 2018145690A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
clutch
insert
actuating device
hybrid module
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.)
Ceased
Application number
PCT/DE2018/100018
Other languages
German (de)
English (en)
Inventor
Manuel BAßLER
Philippe Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN201880011248.4A priority Critical patent/CN110268179B/zh
Priority to DE112018000754.5T priority patent/DE112018000754A5/de
Publication of WO2018145690A1 publication Critical patent/WO2018145690A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/083—Actuators therefor
    • 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
    • B60K6/22—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
    • B60K6/40—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • 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
    • 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
    • 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
    • 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 an actuating device for a clutch, in particular an actuating device comprising a cylinder receptacle, a piston unit which is arranged to be linearly movable in the cylinder receptacle in a direction parallel to a rotation axis, and a rotationally symmetrical component formed around the rotation axis, in which the cylinder receptacle is trained.
  • the present invention also relates to a use of the actuating device, a hybrid module and a motor vehicle.
  • the present invention also relates to a method of manufacturing an actuator for a clutch.
  • motor vehicles with hybrid drive and hybrid modules for drive trains of motor vehicles have an internal combustion engine and an electric machine.
  • the hybrid module By means of the hybrid module it is ensured that the internal combustion engine can be coupled with the electric machine by means of a separating clutch.
  • the internal combustion engine with the separating clutch can be decoupled from the electric machine.
  • the hybrid module has a double clutch, which serves to effect a technical coupling and decoupling of the hybrid drive from a transmission of the vehicle.
  • the separating clutch causes the coupling between the electric machine and the internal combustion engine, wherein the dual clutch then couples the hybrid module with the transmission or decoupled from this.
  • the actuating device usually comprises a so-called KO-slave cylinder, also known as KO-CSC, where "KO” stands for the “zeroth” or actually better “third” clutch, in addition to the so-called K1 / K2 double clutch, where "K1" and “ K2 “stands for the first part clutch and the second part clutch, and where" CSC “is the abbreviation for” Concentric Slave Cylinder.
  • the actuating device for the separating clutch is usually designed as a central release.
  • connection or attachment of this actuator to a carrier sitting on an intermediate wall (housing) of the hybrid module for example, via screw. It is necessary here that these elements together have a very high rigidity. To achieve this, the carrier is usually designed as a steel part. It is also known from the prior art that the KO-CSC, including a cylindrical receptacle (pressure space sleeve) surrounding the KO-CSC, is completely installed in the carrier.
  • the cylinder receptacle may in particular be annular.
  • a disadvantage of this construction is that when the cylinder receiving the actuator for the clutch (separating clutch) is integrated into the support member made of steel, it is not possible to ensure the usually very high demands on the surface of the cylinder receptacle, for example, the seal of the piston unit Do not overuse the actuator over its lifetime and / or to ensure the maximum permissible towline and friction over the service life. This will be explained in detail later in connection with FIG.
  • the specification of the cylinder mount with respect to the surface must be very accurate, so that the seal over the life does not wear excessively and this, and the maximum permissible drag gap and friction requirement over the life, can be guaranteed.
  • Hybrid module with such a durable actuator to provide.
  • the actuating device according to the invention for opening and / or closing a clutch comprises a cylinder receptacle and a piston unit, which in the
  • Cylinder receiving in a direction parallel to a rotation axis is arranged linearly movable.
  • the actuating device according to the invention also comprises a formed around the axis of rotation component in which the cylinder receptacle is formed.
  • the component consists of a carrier which has formed a shape into which an insert (inlet) is inserted as a separate component and in use the cylinder receptacle is formed.
  • the clutch may be a disconnect clutch.
  • the clutch may be a disconnect clutch.
  • the carrier is made of a first material and the insert with the cylinder receptacle made of a second material.
  • the first material has particularly good stiffness properties, such as steel, and the second material particularly good machining properties, such as
  • plastic or aluminum on.
  • plastic or aluminum on.
  • Cylinder mount for the CSC can be guaranteed.
  • at least one holding element for holding the insert in the carrier engages in a recess of the carrier, in particular for axial fixation of the insert with the cylinder receptacle to the carrier.
  • the retaining element is a retaining ring. In the case of an annular cylinder receiving the indentation is annular.
  • At least one sealing element is arranged between the insert and the carrier, which seals the insert with the cylinder receptacle relative to the carrier.
  • at least one sealing element is preferably arranged in a recess (annular groove) of the cylinder receptacle and / or at least one sealing element (sealing ring) in a recess (annular groove) of a wall section of the carrier of the hybrid module. More preferably, the at least one sealing ring is biased so that geometric tolerances of the sealing elements and associated
  • the actuator according to the invention can be used in particular in a hybrid module with a triple clutch for an internal combustion engine and a transmission of a motor vehicle, as described above.
  • the hybrid module according to the invention for a motor vehicle has an actuating device for opening and / or closing the clutch according to one of the embodiments described above.
  • the clutch may be a disconnect clutch.
  • the hybrid module further comprises an electric machine having a stator and a rotor, a dual clutch having first and second split clutches adapted to detachably couple the hybrid module to a transmission of the motor vehicle, and a disconnect clutch adapted to an internal combustion engine of the motor vehicle separable with the hybrid module to couple.
  • the cylinder receptacle may in particular be annular.
  • the motor vehicle according to the invention has a hybrid module according to one of the embodiments described above.
  • the method according to the invention for producing an actuating device for opening and / or closing a clutch comprises the following steps: forming a formation in a carrier such that the carrier is substantially rotationally symmetrical about an axis; Forming an insert, wherein a cylindrical receptacle is formed, and an outer profile of the insert is designed such that the outer profile is at least partially positive fit with inserted insert with the shape of the carrier; Attaching at least one sealing element (sealing ring) in the shape of the carrier; Inserting the insert into the shape of the carrier; and attaching a retaining element in a recess of the carrier, so that the insert is supported in the shape of the carrier.
  • the molding of the insert with the cylinder receptacle can be carried out by a suitable known method.
  • the insert may be manufactured in die cast if its material is aluminum, or made in an injection molding process, if its material is plastic.
  • the cylinder mount of a CSC is currently completely made of plastic or a combination of a steel sleeve as an inner cylinder receiving wall with an aluminum housing as the outer cylinder receiving wall.
  • FIG. 1 is a schematic view of a hybrid module of a motor vehicle with a triple clutch with an actuator according to a
  • FIG. 2 shows the actuating device according to FIG. 1 in an enlarged view
  • FIG. 3 shows the actuating device according to FIGS. 1 and 2 in an enlarged perspective view
  • Fig. 4 is a schematic cross section, as the carrier of a
  • Actuator may be attached to a housing according to the prior art
  • Figure 5 is a schematic cross section of how the carrier of an embodiment of the actuator according to the invention can be attached to a housing.
  • Fig. 6 is an enlarged schematic cross section and a section of a
  • FIG. 1 shows a schematic view of a possible embodiment of a hybrid module 1 for a motor vehicle not shown in detail.
  • the hybrid module 1 comprises a housing 3, a stator 4 and a rotor 120 with magnets 5 of an electric machine comprising the stator 4 and the magnet 5.
  • the rotor 120 is arranged around a rotary shaft 140 through which a central axis of rotation A passes.
  • the hybrid module 1 also includes a triple clutch.
  • the triple clutch comprises a first clutch 91 and a second clutch 92 having double clutch 9, which is adapted to the hybrid module 1 separable with a transmission 6 of the motor vehicle to couple and a clutch 7, which is adapted to an internal combustion engine 2 of the motor vehicle separable to couple with the hybrid module 1.
  • the position of the internal combustion engine 2 and the transmission 6 with respect to the hybrid module 1 is indicated only very schematically by a respective arrow in Figure 1.
  • the clutch 7 is according to the illustration of Figure 1 is a disconnect clutch.
  • the dual clutch 9 with its two partial clutches 91, 92 and the separating clutch 7 are arranged both radially and axially with respect to the axis of rotation A and within the rotor 120.
  • the separating clutch 7 and the double clutch 9 are used essentially in the rotor 120.
  • the separating clutch 7 lies against a first wall 51 of the rotor 120 and an extension 56 connected to the rotary shaft 140 (inner disk carrier, since this has the toothing on the inner disks at the inner diameter).
  • the first part coupling 91 is located on a second wall 52 of the rotor 120 and on a further extension 57 (outer disk carrier, since this has the teeth on the outer diameter of the slats) of a first gear hub 61 with internal teeth for the transmission shaft 1 (not shown).
  • the second part of clutch 92 is also on the second wall 52 of the rotor 120 and on a further extension 58 (outer disk carrier) of a second gear hub shaft 62 at.
  • the first and the second partial clutch 91, 92 are arranged one behind the other in the axial direction AR, wherein the double clutch 9 in the radial direction R is further away from the axis of rotation A of the rotor 120 than the separating clutch 7.
  • the separating clutch 7 in the radial direction R closer to the rotation axis A of the rotor 120 arranged as the double clutch. 9
  • the dual clutch 9 and the separating clutch 7 may be arranged integrated within the rotor 120. Due to the radial and axial nesting of the double clutch 9 and the separating clutch 7, a particularly compact construction of the hybrid module 1 is ensured. It is thus possible to use the hybrid module 1 even in very small vehicles or in vehicles with very little installation space and / or transversely mounted internal combustion engine.
  • the separating clutch 7 can be seen arranged on the first wall 51 of the rotor 120, that is, the first wall 51 has a toothing, with the lamellae 71 of the separating clutch 7 frictionally cooperate with each other and thus positively with the toothing.
  • the extension 56 of the rotary shaft 140 has an internal toothing, with which the lamellae 71 of the separating clutch 7 frictionally cooperate with each other and thus form-fitting manner with the internal toothing.
  • first partial clutch 91 and the second partial clutch 92 are arranged on the second wall 52 of the rotor 120, that is, the fins 93 of the partial clutches 91, 92 cooperate by means of an internal toothing on the second wall 52 of the rotor 120.
  • the lamellae 93 of the first partial clutch 91 also interact with an external toothing of the extension 57 of the first transmission hub 61.
  • the lamellae 93 of the second partial coupling 92 also interact with an external toothing of the extension 58 of the second transmission hub 62.
  • the term internal toothing or external toothing means that an internal toothing is executed on the axis of rotation A and an external toothing is directed away from the axis of rotation A.
  • the dual clutch 9 and the separating clutch 7 are provided between substantially the walls 51, 52 of the rotor 120.
  • the rotor 120 assumes with the walls 51, 52, the function of the support for the slats 71 of the clutch 7 and the fins 93 of the dual clutch 9.
  • the two walls 51, 52 of the rotor 120 are shown concentrically arranged, said the external toothing of the first wall 51 is arranged opposite the internal toothing of the second wall 52.
  • the lamellae 71, 93 of the clutches 7, 91, 92 have also on both sides also a topology formed, which interacts with the corresponding internal toothing or the corresponding external toothing substantially form-fitting manner.
  • the hybrid module 1 has an actuating device 20 which, for example, is designed as a central release device and is shown enlarged in FIG.
  • the actuator 20 is used to open and / or close the clutch 7.
  • the hybrid module 1 a further actuator 951, which is associated with the first part of the clutch 91 91 of the dual clutch 9 and a further actuator 961, the second part of the clutch 92 of the dual clutch 9 assigned is.
  • the actuators 20, 951, 961 usually comprise several components, such as a bearing, pressure receiver, pressure transducer in various configurations. Pressure transducers, thrusters can also have several components, including cylinders and / or shaped sheets. For reasons of illustration, in FIG.
  • the arrowheads of the arrows to the actuating devices 951, 961 only point to the respective pressure transmitters which, when actuated, pass on the respective pressure to the first partial coupling 91 or to the second partial coupling 92.
  • the actuating device 951 for the first partial clutch 91 and the K2 bearing of the actuator 961 for the second partial clutch 92 so also another bearing, namely the actuating bearing 21, necessary, which rotation about the axis A allows and, together with the actuator 20, the burner 2 separates from the electric motor 4 + 5 or this connects.
  • the actuator 20 for actuating the separating clutch 7, a pressure sensor 25 (KO-slave cylinder, KO-CSC), a pressure transmitter 23 and a switch between the pressure transducer 25 and 23 pressure transducer actuation bearing 21.
  • the pressure receiver 25 is arranged within a cylinder receptacle 24.
  • the cylinder receptacle 24 is in turn arranged directly within a carrier 22, for example steel carrier.
  • the carrier 22 is also associated with the actuator 20.
  • the carrier 22 represents a component 8, which has formed according to the invention a molding 28 into which an insert 10 is inserted as a separate component and in the insert 10, the cylinder receptacle 24 is formed. Further details will be described in connection with FIGS. 5 and 6.
  • the pressure receiver 25 comprises a piston unit 1 1, which is arranged in the cylinder receptacle 24 in a direction AR parallel to a rotational axis A linearly movable. Adjacent to a sealing element 15 (sealing ring), a pressure chamber 29 is formed which is surrounded by an inner wall 27.
  • the piston unit 1 1 usually comprises a piston body 13 (plunger) to which the sealing element 15 is arranged and prevents a hydraulic fluid from the pressure chamber 29 exits at the point where the piston plunger 13 enters the pressure chamber 29 and extends out of the pressure chamber 29 ,
  • Another sealing element 244 in the form of a sealing ring, in particular O-ring, is arranged in a recess (annular groove) of the carrier 22.
  • the actuating bearing 21 usually comprises, inter alia, an outer ring 21 1, an inner ring 213 and a plurality of roller bodies 215 arranged therebetween, which have the shape of a ball in the embodiment shown here.
  • the actuating bearing 21 is suitable for installation in the actuator 20 for acting on the pressure transducer, for example, as shown here in Figure 1, a pressure pot 23. Through the pressure pot 23, the separating clutch 7 of the hybrid module 1 is actuated.
  • the pressure receiver 25 receives a compressive force which it transmits via the outer ring 21 1 to the actuating bearing 21.
  • the pressure pot 23 serves as a transmission element, the is acted upon axially by an actuating force from the pressure receiver 25, in order then to transmit this actuating force to the separating clutch 7.
  • the pressure force is applied to the entire actuator 20 and the entire actuator 20 disengages, if the actuator 20 is designed as a releaser.
  • the hybrid module 1 can be actuated via a low-pressure system or via a high-pressure system, for example with a pressure from 1 .5 bar.
  • the actuating device 20 for the clutch as Gottausschreiber and the actuators 95, 96 for the dual clutch 9 can be actuated by means of a rotary input;
  • the working pressure of the working fluid is 14 bar.
  • the actuators 20, 95, 96 are all operable as a central release;
  • the working pressure of the working fluid is 38 bar.
  • the invention is not limited to these embodiments of the actuators 20, 95, 96 for low and high pressure systems.
  • a high-pressure system is shown.
  • Figure 3 shows the embodiment of an actuator 20 according to the invention according to Figures 1, 2, 5 and 6 in an enlarged perspective view.
  • a conduit 32 for the conduit prevents the conduit from being forced axially outward of the cylinder surface by the fluid.
  • Sealing element carrier (sealing ring carrier) 34 prevent the gap extrusion of the sealing element (sealing ring) 15 in the gap to the piston body 13. All other elements are described in connection with Figures 1, 2, 5 and 6.
  • Figure 4 shows a section of a schematic cross section of a hybrid module 1 with a known from the prior art, completely in the carrier 22 of an actuator 20 (Zentralaus Weger) a (separating) clutch 7 integrated cylinder receptacle 24.
  • the carrier 22 and the cylinder receptacle 24 are thus built in one piece.
  • the carrier 22 is screwed to a housing 30 and consists for example entirely of steel. This is due to the outer surfaces of the cylinder receiving 24 opposite outer surfaces of the Carrier 22 a matching holding profile 17 formed on which the pressure taker 25 (KO- slave cylinder, KO-CSC) can be supported or received.
  • the cylinder receptacle 24 of a pressure transducer 25 (KO-slave cylinder, KO-CSC) is formed entirely of plastic or a combination of a steel sleeve as the inner pressure chamber wall 27 with an aluminum housing as the outer pressure chamber wall 26.
  • the steel sleeves can be honed to their outer diameter and then joined to the outer aluminum housing.
  • the cylinder receptacle 24 in the carrier 22 consists of the outer pressure chamber wall 26 and the inner pressure chamber wall 27, which usually have a very small distance, for example less than 10 mm, to each other and must be at least equal to.
  • FIG. 5 and enlarged in FIG. 6 show a section of an embodiment of the actuating device 20 according to the invention.
  • the actuating device 20 comprises a cylinder receptacle 24 (annular pressure pickup receptacle) and a piston unit 1 1 (see FIG. 2) which is arranged to be linearly movable in the cylinder receptacle 24 in a direction AR parallel to a rotation axis A.
  • the piston body 13 is an annular piston in the illustrated embodiment.
  • the actuating device 20 additionally comprises a rotationally symmetrical component 8, which is formed around the axis of rotation A and in which the cylindrical receptacle 24 is formed.
  • the rotationally symmetrical component 8 consists of a carrier 22, which has a shape in which an insert 10 (inlet) is used as a separate component and in the insert 10, the cylinder receptacle 24 is formed.
  • the carrier 22 and the insert 10 for the cylinder receptacle 24 are thus formed as separate components.
  • the carrier 22 is formed so as to support the separate insert 10 at a predetermined position. It is advantageous that the surface quality of the cylinder receptacle 24 for the CSC 25 can be improved compared to the prior art described above.
  • the pressure receiver 25 usually comprises a piston unit 1 1, which is arranged in the cylinder receptacle 24 in a direction AR parallel to a rotational axis A linearly movable.
  • the piston unit 1 1 usually comprises a plunger 13 (piston body), to which a sealing element 15 (sealing ring) is arranged, which prevents a hydraulic fluid from escaping from the cylinder space at the point where the piston body 13 into the pressure chamber 29 of the pressure transducer 25 (FIG. KO-slave cylinder, K0-CSC) retracts or extends out of the pressure chamber 29.
  • the piston unit 1 1 is surrounded by an outer pressure chamber wall 26.
  • the carrier 22 is made of a first material and the insert 10 is made with the cylinder receptacle 24 of a second material.
  • the first material has particularly good stiffness properties, such as steel, and the second material of the insert 10 particularly good machining properties, such as plastic or aluminum on.
  • the carrier 22 for the actuator 20 is attached directly to the housing 30 of the hybrid module 1.
  • the positioning of the insert 10 relative to the carrier 22 takes place in the radial direction R through the surface of the carrier 22 surrounding the insert 10.
  • essential regions of the outer surfaces of the insert 10 facing the carrier 22 can be arranged in a form-fitting manner on the corresponding outer surfaces of the carrier 22.
  • at least one holding element is provided for unambiguous positioning, in particular for axial fixing, of the insert 10 with the cylinder receptacle 24 on the carrier 22.
  • the holding means is a securing ring 243 and engages in a recess 242 (annular groove) of the carrier 22 a.
  • At least one sealing element (sealing ring) 244, 245 is arranged between the insert 10 and the carrier 22, which seals the insert 10 with the cylinder receptacle 24 with respect to the carrier 22 or at the points of the cylinder receptacle 24 where the sealing elements 244, 245 are arranged, the high pressure section seals to the outside.
  • two radially arranged sealing rings 244, 245 are provided, which seal the insert 10 with the cylinder receptacle 24 to the carrier 22 at the corresponding points.
  • the sealing rings 244, 245 are formed for example as O-rings.
  • the sealing element 244 is arranged on the cylinder receptacle 24.
  • the sealing element 245 is arranged on a wall section of the carrier 22 of the hybrid module 1.
  • the two sealing elements 244, 245 are received in recesses (annular grooves) in the cylinder receptacle 24 or in a wall section of the support 22. More preferably, the sealing elements 244, 245 are biased so that geometrical tolerances of the sealing elements 244, 245 and associated assembly problems can be reduced, as already described above.
  • the actuating device 20 can be used in a hybrid module 1 (see FIG. 1) with a triple clutch 7, 91, 91 for an internal combustion engine and a transmission of a motor vehicle.
  • the inventive method for producing an actuator 20 for a clutch 7 comprises the following steps: forming a formation 28 in a carrier 22, that the carrier 22 is rotationally symmetrical about an axis A; Forming an insert 10, wherein a cylindrical receptacle 24 is formed, and an outer profile 19 of the insert 10 is designed such that the outer profile 19 is at least partially positive fit with the insert 28 with the formation 28 of the carrier 22 with inserted insert 10; Attaching at least one sealing ring 244 in the formation 28 of the carrier 22; Inserting the insert 10 into the formation 28 of the carrier 22; and attaching a holding element 243 in a recess 242 of the carrier 22, so that the insert 10 is held in the formation 28 of the carrier 22.
  • the molding of the insert 10 may be performed by any suitable known method.
  • the insert 10 is in a die-
  • the pressure receiver 25 (K0 slave cylinder, KO-CSC) is not shown in FIGS. 5 and 6.
  • the actuator according to the invention can be used in all applications in which a high stiffness of the slave cylinder (CSCs) is required, ie not only for clutches, in particular disconnect couplings, of hybrid modules in motor vehicles.
  • sealing element sealing ring
  • sealing element sealing ring
  • sealing element carrier sealing ring carrier

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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)
  • Hybrid Electric Vehicles (AREA)

Abstract

L'invention concerne un dispositif d'actionnement conçu pour un embrayage, comprenant un logement cylindrique, un ensemble piston qui est disposé dans le logement cylindrique de manière à pouvoir être déplacé linéairement dans une direction parallèle à un axe de rotation et une pièce formée autour de l'axe de rotation, dans laquelle le logement cylindrique est ménagé. Selon l'invention, la pièce à symétrie de rotation est constituée d'un support pourvu d'un évidement dans lequel un insert peut être introduit en tant que pièce distincte, le logement cylindrique étant formé dans cet insert. La présente invention concerne en outre un procédé pour produire un tel dispositif d'actionnement.
PCT/DE2018/100018 2017-02-10 2018-01-12 Dispositif d'actionnement conçu pour un embrayage et procédé de production Ceased WO2018145690A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880011248.4A CN110268179B (zh) 2017-02-10 2018-01-12 用于离合器的操纵装置和制造方法
DE112018000754.5T DE112018000754A5 (de) 2017-02-10 2018-01-12 Betätigungseinrichtung für eine Kupplung und Herstellungsverfahren

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102017102647 2017-02-10
DE102017102647.9 2017-02-10
DE102017108629 2017-04-24
DE102017108629.3 2017-04-24

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WO2018145690A1 true WO2018145690A1 (fr) 2018-08-16

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CN (1) CN110268179B (fr)
DE (1) DE112018000754A5 (fr)
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DE102021117752A1 (de) 2021-07-09 2023-01-12 Schaeffler Technologies AG & Co. KG Kupplungseinrichtung für einen Hybridantriebsstrang eines Kraftfahrzeugs

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EP1887242A2 (fr) * 2006-08-09 2008-02-13 LuK Lamellen und Kupplungsbau Beteiligungs KG Dispositif destiné à l'actionnement pneumatique d'un embrayage de véhicule

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DE112018000754A5 (de) 2019-11-07
CN110268179A (zh) 2019-09-20

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