CN109236890A - Method and system for fluid control of two partial clutches - Google Patents

Method and system for fluid control of two partial clutches Download PDF

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Publication number
CN109236890A
CN109236890A CN201810620971.4A CN201810620971A CN109236890A CN 109236890 A CN109236890 A CN 109236890A CN 201810620971 A CN201810620971 A CN 201810620971A CN 109236890 A CN109236890 A CN 109236890A
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CN
China
Prior art keywords
valve
clutch
fluid
pump
application apparatus
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.)
Granted
Application number
CN201810620971.4A
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Chinese (zh)
Other versions
CN109236890B (en
Inventor
卡斯滕·迈耶
马可·格雷特
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
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Schaeffler Technologies AG and Co KG
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Publication of CN109236890A publication Critical patent/CN109236890A/en
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Publication of CN109236890B publication Critical patent/CN109236890B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/68Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
    • F16H61/684Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
    • F16H61/688Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00Fluid-actuated clutches
    • F16D25/12Details not specific to one of the before-mentioned types
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00External control of clutches
    • F16D48/02Control by fluid pressure
    • F16D48/0206Control by fluid pressure in a system with a plurality of fluid-actuated clutches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0262Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
    • F16H61/0265Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
    • F16H61/0267Layout of hydraulic control circuits, e.g. arrangement of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26Generation or transmission of movements for final actuating mechanisms
    • F16H61/28Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30Hydraulic or pneumatic motors or related fluid control means therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00External control of clutches
    • F16D48/02Control by fluid pressure
    • F16D2048/0227Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
    • F16D2048/0233Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump actuation
    • F16D2048/0236Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump actuation with multiple independent pumps, e.g. one per clutch, or for supplying fluid to different systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00External control of clutches
    • F16D48/02Control by fluid pressure
    • F16D2048/0227Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
    • F16D2048/0233Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump actuation
    • F16D2048/0245Electrically driven rotary pumps
    • F16D2048/0248Reversible rotary pumps, i.e. pumps that can be rotated in the two directions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00External control of clutches
    • F16D48/02Control by fluid pressure
    • F16D2048/0257Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
    • F16D2048/0278Two valves in series arrangement for controlling supply to actuation cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00Fluid-actuated clutches
    • F16D25/12Details not specific to one of the before-mentioned types
    • F16D25/14Fluid pressure control

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The invention relates to a method and a system for the fluidic control of two partial clutches (15, 16), which belong to a dual clutch transmission, wherein the two partial clutches are controlled by means of two pump actuators (11, 12) in a fluidic system (10). In order to improve the functionality and/or the availability when controlling the two partial clutches (15, 16), the two secondary fluid application devices (18, 19) are simultaneously controlled, if necessary, by means of the two pump actuators (11, 12).

Description

The method and system of two separation clutchs is controlled for fluid
Technical field
The present invention relates to the sides for two separation clutchs by two pump actuator fluid control double-clutch speed changers Method and system.
Background technique
From the stream for fluid control machine motor-car component a kind of known to 10 2,015 218 784 A1 of German laid-open document DE Body device, wherein at least one automotive component is clutch and at least one other automotive component is speed changer portion Part, wherein fluid means has multiple fluid sources, and each of described fluid source includes fluid pump, and fluid pump has First conveying direction and second conveying direction opposite with the first conveying direction, wherein so connect fluid source fluid with controlling It connects in fluid means, so that at least one of fluid source is suitable for activating two automotive component, and fluid stream At least one of amount source is suitable for that the automotive component of other fluid source can also be passed through.
Summary of the invention
The technical problem to be solved by the present invention is to, by two pump actuators in fluid system improve control it is double from Functionality and/or availability when two separation clutchs of conjunction speed changer.
The technical problem controls double-clutch speed changer by a kind of two pump actuator fluids by fluid system The method of two separation clutchs solves, wherein controls two secondary fluid application dresses simultaneously by two pump actuators if necessary It sets.Pump actuator is preferably electric pump actuator, and each pump actuator includes the fluid pump by motor drive, especially liquid Press pump.Targetedly control motor activated separation clutch or secondary fluid application apparatus in one.Fluid pump, especially Hydraulic pump is designed to be able to along opposite conveying direction trandfer fluid, the especially reversible pump of hydraulic medium.Pump actuator is matched Belong to two separation clutchs.Connecting with being parallel to respectively with actuator with valve with fuel tank interface.Advantageously or valve is connected Between two pump actuators and secondary application device.Such as via the valve gear that can actively activate, pass through pump actuator and two The connection appropriate of a secondary fluid application apparatus, two secondary pump actuators are in addition to for controlling two separation clutchs, also It can be used very efficiently for two secondary fluid application apparatus of actuating.The advantages of designing in this way is that it is possible to completely left out be used for The actuator of itself of secondary fluid application apparatus.
The preferred embodiment of this method is characterized in that two secondary fluid application apparatus are fluid-type transmission control systems System and additional separation clutch.Fluid-type control system of speed variator includes for example hydraulic or air pressure shift adjuster or liquid Pressure or the drive actuator of air pressure.Advantageously, two points of double-clutch speed changer are controlled by fluid-type control system of speed variator Speed changer.Additional separation clutch is, for example, the K0 having in the hybrid drive train of main drive and assistant drive device Clutch.Main drive is, for example, Thermal Motor, is also referred to as internal combustion engine.Assistant drive device includes e.g. at least one The electric driver of a motor or a motor.Additional separation clutch is preferably placed in main drive and secondary driving dress Between setting.Main drive can be disconnected by additional separation clutch, to allow only to be driven by assistant drive device, such as pure electricity Motor vehicle of the dynamic device driving equipped with hybrid drive train.
The other preferred embodiment of this method is characterized in that two secondary fluid application apparatus are pumped independently of each other A control in actuator.Therefore the pump for being for example able to use the separation clutch of double-clutch speed changer not controlled currently causes Dynamic device controls one in secondary fluid application apparatus.However, can also be used simultaneously according to the design scheme of hydraulic system Two pump actuators, to activate two secondary fluid application apparatus independently of each other.
The other preferred embodiment of this method is characterized in that, one separated in clutch is maintained under current state For a period of time, so that two pump actuators can be used for two secondary fluid application apparatus within described a period of time.For example, The separation clutch for being maintained at its current state is fluidly disconnected with fluid system.For example, realizing separation by suitable valve gear The disconnection of clutch and fluid system, the valve gear interrupt separation clutch and separate the stream between the pump actuator that clutch is attached with this Body connection.
The other preferred embodiment of this method is characterized in that is occurred during keeping separating clutch leaks through institute The short-term fluid communication of the pump actuator attached compensates.Leakage is to be not intended to existing in itself, but is usually inevitable 's.If clutch drop of pressure is too many, fluid, particularly hydraulic medium are supplemented by attached pump actuator, to keep Separation clutch is in its current state.
The other preferred embodiment of this method is characterized in that, will be more frequent during double-clutch speed changer is runThe separation clutch for dividing speed changer used is fluidly disconnected with fluid system, and only on demand with the pump attached Actuator fluidly connects.In this embodiment, the separation clutch just divides clutch fluid to connect only for control with other It connects.Within remaining time, pump actuator can be used in conjunction with other pump actuator, with control secondary fluid application apparatus or Supply fluid, especially hydraulic medium.
In the fluid system, which has two of two separation clutchs for fluid control double-clutch speed changer A pump actuator, double-clutch speed changer include two points of speed changers, are realized in double-clutch speed changer by two points of speed changers Gear alternatively or additionally solves above-mentioned technical problem especially according to the above method in this way, in two pump actuators and two The valve gear that can actively activate is disposed between the above-mentioned secondary fluid application apparatus of secondary fluid application apparatus, especially two. As known to 10 2,015 218 784A1 of Germany Patent document DE, in such as Common fluids system or Common fluids device In, the valve gear of active substitution is passively or valve.In this case it is known that receive the valve gear of active relative to passively Or the increased control cost of valve.
The preferred embodiment of fluid system is characterized in that the valve gear of energy active control is designed to two position four-way valves. Two position four-way valves include the interface for being respectively used to two secondary fluid application apparatus.One in secondary fluid application apparatus, example Such as fluid control systems, it can be directly connected to two position four-way valves.Other secondary fluid application apparatus, such as additional separation Clutch or K0 clutch are preferably connected to two position four-way valves in the case where being inserted into other shut-off valve.In addition cut-off Valve is preferably designed for the two position two-way valve with open position and closed position.Advantageously, additional shut-off valve is pre-tightened Its closed position, in the closed position, two position four-way valves and secondary fluid application apparatus (such as additional separation clutch or Person says K0 clutch) between connection be interrupted.Shut-off valve can be switched to open position from its closed position by Electromagnetically actuated It sets.It, can be simultaneously and according to each of two pump drives by being designed to the valve gear of two position four-way valves Switching position controls two secondary fluid application apparatus.Particularly, one in conjunction with following in separation clutch and attached Shut-off valve between pump actuator enables the valve gear for being designed to two position four-way valves to control two secondary fluids simultaneously and answers With device, to obtain apparent availability and jump in the motor vehicle equipped with the fluid system.Preferably, with electricity Magnetic mode controls the valve gear of energy active control.It is also referred to as with a corresponding shut-off valve in secondary fluid application apparatus Block valve.
The other preferred embodiment of fluid system is characterized in that the valve gear of energy active control is designed to four four Port valve.Preferably, the valve gear of energy active control is controlled with electromagnetic mode.In the design scheme as four-way valve, first The cutting function by additional shut-off valve of preceding description is integrated into the valve gear of energy active control.Pass through four four-ways Valve is advantageously carried out following four function.It blocks as one K0 clutch in secondary fluid application apparatus, is let out with reducing Leakage, and it is connected to the fluid-type control system of speed variator and the first pump actuator of other secondary fluid application apparatus.Resistance Disconnected K0 clutch is to reduce leakage, and connecting fluid formula control system of speed variator and the second pump actuator.Connect K0 clutch With the first pump actuator, and connecting fluid formula control system of speed variator and the second pump actuator.Connect K0 clutch and second Actuator, and connecting fluid formula control system of speed variator and the first pump actuator.
In the particularly preferred design scheme of the valve gear for the energy active control for being designed to four-way valve, dedicated Fluid-type derailleur control device in, it is not necessary to the switching position for disconnecting valve gear adjustment with K0 clutch, this The fluid with pressure of K0 clutch can overflow in switching position.Therefore, fluid-type control system of speed variator can be with first Pump actuator and the connection of the second pump actuator, without generating additional leakage at K0 clutch.
The other preferred embodiment of fluid system is characterized in that the valve gear of energy active control is designed to rotary valve. Rotary valve includes turntable, can for example pass through stepper motor and the hydraulic-driven turntable.The advantages of turntable, is that it is possible to realize and connect The increased leakproofness of mouth, so as to engage K0 clutch.By corresponding action face, the pressure on K0 clutch can Realize the pressure for sealing of turntable.However, in such a case it is necessary to for example ensuring accordingly to press by using suitable film Power room is No leakage in action face.
The other preferred embodiment of fluid system is characterized in that, at least one of them separation clutch and is attached Shut-off valve is arranged between pump actuator.Shut-off valve is preferably placed between separation clutch and the pump actuator attached.Shut-off valve It is preferably designed for the two position two-way valve with open position and closed position.In open position, in separation clutch and affiliated It realizes and fluidly connects between pump actuator.In closed position, this is fluidly connected is interrupted by shut-off valve, so that separation clutch is kept In current state.
The other preferred embodiment of fluid system is characterized in that shut-off valve is pre-tightened on its closed position.Therefore, When not controlling shut-off valve, separation clutch is fluidly disconnected.Do not consider inevitably to leak as a result, separation clutch is kept In its actuating state, that is, open or close state.Preferably, shut-off valve is controlled with electromagnetic mode, i.e., switched from its closed position To its open position.
The hydraulic pump of pump actuator can be designed to vane pump, gear pump or piston pump.Advantageously, it is driven using motor Dynamic pump actuator.On the first conveying direction, such as it is able to use the pump actuator of also referred to as reversible pump actuator, with control Clutch is separated, especially engagement separation clutch.On the second conveying direction, it is able to use reversible pump actuator, to control secondary Fluid application apparatus or supply hydraulic medium.The separation clutch of double clutch can be controlled, directly or indirectly.Separate clutch energy It is enough the clutch of wet type or dry-running.
The invention further relates to the valve gears and/or shut-off valve for above-mentioned fluid system.Valve gear and/or shut-off valve can Separately operation.
When necessary, the invention further relates to a kind of component, the component has the fluid portion for constituting above-mentioned fluid system Part and/or electrical or electromechanical component.The component includes such as pump actuator, valve gear, shut-off valve and various fluid application apparatus.
Detailed description of the invention
Below by the different embodiments elaborated in conjunction with attached drawing provide additional advantages of the present invention, technical characteristic with And details.Attached drawing are as follows:
Fig. 1 is tool there are two the fluid system of pump actuator, and two pump actuators control double-clutch speed changer for fluid Two separation clutchs, which, which has, is designed to the active valve gears of two position four-way valves;
Fig. 2 is designed to the active valve gear of four-way valve;
Fig. 3 is the profilograph of the structure design of four-way valve;
Fig. 4 is tool there are two the fluid system of pump actuator, and two pump actuators control double-clutch speed changer for fluid Two separation clutchs, which has active valve gear according to fig. 2;And
Fig. 5 is tool there are two the fluid system of pump actuator, and two pump actuators control double-clutch speed changer for fluid Two separation clutchs, which, which has, is designed to the active valve gear of rotary valve.
Specific embodiment
The fluid system 10 with the first pump actuator 11 and the second pump actuator 12 is shown in FIG. 1.Pump actuator 11,12 are designed to reversible pump actuator.Reversible pump actuator 11,12 is designed to fluid pump, especially hydraulic pump, such as arrow Shown in symbol, reversible pump actuator can be run on opposite conveying direction.Reversible pump actuator 11 and 12 can be with advantageous Ways and means control double clutch 14 and two secondary fluid application apparatus 18,19.
Double clutch 14 includes the first separation clutch 15 and the second separation clutch 16.First separation clutch of double clutch 14 15 can be controlled by pump actuator 11.Second separation clutch 16 of double clutch 14 can be controlled by pump actuator 12.
Two pump actuators 11,12 are assigned and valve 21,22 respectively.Dual-pressure valve is also referred to as with valve 21,22 and has two A interface is connected to the corresponding interface of attached pump actuator 11,12 with valve 21,22 by two interfaces.It is wrapped with valve 21,22 Include the fuel tank interface as third interface.
By the way that dual-pressure valve can be realized with method in a simple manner in other words with valve 21,22: pump actuator can be passed through 11,12 independently of rotation direction form different control situations.
The Vidacare corp for being used for pump actuator 11 is indicated by rectangle symbols 23.It is used for by the expression of rectangle symbols 24 The local control unit for for example adjusting pressure of the Vidacare corp 23 of pump actuator 11.
The Vidacare corp for being used for pump actuator 12 is indicated by rectangle symbols 25.It is used for by the expression of rectangle symbols 26 The local control unit for for example adjusting pressure of the Vidacare corp 25 of pump actuator 12.
Shut-off valve 28 is arranged in the clutch supply line 27 of separation clutch 16.Shut-off valve 28 is designed to have closing The two position two-way valve of position and open position.Indicate that shut-off valve 28 is pre-tightened closed position shown in it by spring symbol On.
On the closed position shown in, shut-off valve 28, which is interrupted, to be connected in pump actuator 12 with the fluid separated between clutch 16 It connects.If shut-off valve 28 is electromagnetically actuated and (is indicated by other symbol), shut-off valve 28 is switched to its open position, On open position, fluidly connecting between the right side output end in Fig. 1 of pump actuator 12 and separation clutch 16 is opened.
Or valve 30 is connected two pump actuators 11 and 12 on the right side of Fig. 1 and the secondary fluid application apparatus on the left of Fig. 1 Between 18.By or valve 30, pump actuator 11 or pump actuator 12 can be conveyed to 18 supply fluid of secondary fluid application apparatus Flow and fluid conveying pressure.
Secondary application device 18 in Fig. 1 and Fig. 5 is fluid-type control system of speed variator.Fluid-type control system of speed variator It can include the fluid actuator of gear adjuster or speed changer.In Fig. 1 and Fig. 5, secondary application device 19 is other point Luxuriant clutch is also referred to as K0 clutch.
Such as shown in Fig. 1, Fig. 4 and Fig. 5, two secondary fluid application apparatus 18,19 are via active valve gear 30;40; It is integrated into fluid system 10 to 50 fluid-types.Secondary fluid application apparatus 18 is filled via the valve that connecting pipeline 34 is connected to active Set 30;40;50.Secondary fluid application apparatus 19 is connected to the valve gear 30 of active via connecting pipeline 35;40;50.
Pump actuator 11 is connected to the valve gear 30 of active via connecting pipeline 37;40;50.Pump actuator 12 is via connection Pipeline 36 is connected to the valve gear 30 of active;40;50.Two connecting pipelines 36 and 37 are respectively from fluid branch fluid section in other words Point 33,32 starts.Fluid node 33,32 is connected with pump actuator 12,11 fluid branch respectively in other words, and is activated with pump Device 12,11 is in parallel to be connected with valve 22,21.
About valve gear 30;40;50, term " active " refers to valve gear 30;40;50 can be actively controlled.Such as exist Pass through shown in corresponding symbol in Fig. 1 and Fig. 4, valve gear 30;40 actuating is electromagnetic type.As passed through rectangle institute in Fig. 5 Show, the actuating of valve gear 50 is electrically driven device completion.
In the embodiment of fluid system 10 shown in Fig. 1, the valve gear 30 of active is designed to two position four-way valves 31.It borrows Two position four-way valves 31 are helped, it can be respectively according to the switching position of valve gear 30, by being designed to fluid-type transmission control system The secondary fluid application apparatus 18 of system and the secondary fluid application apparatus 19 for being designed to K0 clutch are electronic by two simultaneously Pump actuator 11,12 controls double-clutch speed changer.
The shut-off valve 38 of also referred to as block valve is also arranged in the connecting pipeline 35 for leading to K0 clutch 19.Shut-off valve 38 are designed to have the two position two-way valve of closed position and open position.Indicate that shut-off valve 38 is pre-tightened by spring symbol On its closed position.In the case where carrying out electromagnetic type control, shut-off valve 38 is opened.
By fluid system 10 shown in Fig. 1, two secondary fluid application apparatus 18,19 can be controlled simultaneously, from And apparent availability and jump are generated in the motor vehicles equipped with fluid system 10.
As shown in Figure 1, K0 clutch 19 can be separated with fluid system 10 by 38 fluid-type of shut-off valve.Therefore, K0 from Clutch 19 can be maintained under its current state in the case where no fluid-actuated.In order to which fluid-type activates K0 clutch 19, Open shut-off valve 38.Then, K0 clutch 19 can be controlled by the valve gear 30 of active.
, it can be seen that the valve gear 40 of active is designed to four-way valve 41 in Fig. 2 and Fig. 4.In this embodiment, It is integrated into valve gear 40 by the break-in facility shown in FIG. 1 of shut-off valve 38.
Fig. 3 shows the structure design of valve gear 40.In the design of the structure shown in, valve gear 40 includes having seven to connect The valve casing 60 of mouth 61 to 67.Interface 61 and 62 correspond to K0 clutch (
18 in Fig. 4).Interface 63 corresponds to fluid-type control system of speed variator (19 in Fig. 4).Interface 64 corresponds to the Two pump actuators (12 in Fig. 4).Interface 65 corresponds to the first pump actuator (11 in Fig. 4).Interface 66 also corresponds to One pump actuator (11 in Fig. 4).Interface 67 corresponds to the second pump actuator (12 in Fig. 4).
Valve piston 68 is accommodated in valve casing 60, valve piston 68 resists the pretightning force of spring, can for example pass through Electromagnetic Control It moves back and forth, i.e., can be moved to the left and to the right in Fig. 3.Valve piston 68 includes four in total has different sizes in the axial direction Piston section.
The size of the piston section 71 to 74 of valve piston 68 and the interface 61 to 67 of valve gear 40 are so adapted, so that In the case that secondary fluid application apparatus (19 in Fig. 4) only carries out speed Control, it is not necessary to idle position is switched to, in unloaded position It sets and is opened with the connection of K0 clutch (18 in Fig. 4) and therefore can overflow the fluid with pressure of K0 clutch.Cause This, control system of speed variator (19 in Fig. 4) is connectable to the first pump actuator and the second pump actuator, without K0 from Additional leakage is generated at clutch.
By active valve gear 40, four functions can be realized advantageously during the operation of fluid system 10.Fluid-type Control system of speed variator (secondary fluid application apparatus (19 in Fig. 4)) is also abbreviated as GASS, wherein capitalization GASS generation Table english terminology Gear Actuated Subsystem (shifter actuation subsystem).
In the first function, to reduce leakage, K0 clutch is disconnected or blocked, and GASS is connected to via valve gear 40 First pump actuator.In the second function, to reduce leakage, equally K0 clutch is blocked or disconnected, and GASS is filled via valve It sets 40 and is connected to the second pump actuator.In third function, K0 clutch is connected to the first pump actuator, and GASS is connected to Two pump actuators.In the 4th function, K0 clutch is connected to the second pump actuator, and GASS is connected to the first pump actuator.
Valve gear 50 shown in Fig. 5 is configured to have the rotary valve of turntable 51.Turntable 51 is activated via driving device 52. Turntable 51 is for example by stepper motor electric drive.However, turntable 51 also fluidly especially can hydraulically drive.
The advantages of turntable 51, is that it is possible to realize the increased leakproofness of interface.Therefore advantageously, K0 clutch 19 can It is fully engaged or disconnects.It, can be using the pressure on K0 clutch 19, to be applied on capstan 51 by corresponding action face Plus-pressure.By the pressure, better seal can be realized by pressing turntable.But it must assure that pressure in this case Power room No leakage at action face.This can for example be realized by using film.
Reference signs list
10 fluid systems
11 pump actuators
12 pump actuators
14 double clutches
15 separation clutchs
16 separation clutchs
18 secondary application devices
19 secondary application devices
21 and valve
22 and valve
23 rectangle icons
24 rectangle icons
25 rectangle icons
26 rectangle icons
27 clutch supply pipelines
28 shut-off valves
The valve gear of 30 actives
31 liang of position four-way valves
32 branches
33 branches
34 connecting pipelines
35 connecting pipelines
36 connecting pipelines
37 connecting pipelines
38 shut-off valves
The valve gear of 40 actives
41 four-way valves
The valve gear of 50 actives
51 turntables
52 driving devices
60 valve casings
61 interfaces
62 interfaces
63 interfaces
64 interfaces
65 interfaces
66 interfaces
67 interfaces
68 valve pistons
71 piston sections
72 piston sections
73 piston sections
74 piston sections

Claims (10)

1. a kind of two points by two pump actuator (11,12) fluids control double-clutch speed changer in fluid system (10) The method of clutch (15,16), which is characterized in that control two simultaneously by described two pump actuators (11,12) if necessary Secondary fluid application apparatus (18,19).
2. the method according to claim 1, wherein described two secondary fluid application apparatus (18,19) are stream Body formula control system of speed variator and additional separation clutch.
3. method according to any one of the preceding claims, which is characterized in that described two secondary fluid application apparatus (18,19) are independently of each other respectively by a control in the pump actuator (11,12).
4. method according to any one of the preceding claims, which is characterized in that will be in the separation clutch (15,16) One is maintained under current state a period of time, thus in described a period of time can by described two pump actuators (11, 12) described two secondary fluid application apparatus (18,19) are used for.
5. a kind of fluid system (10), the fluid system has two separation clutchs for fluid control double-clutch speed changer Two pump actuators (11,12) of (15,16), the double-clutch speed changer include two points of speed changers, pass through described two points Speed changer realizes the gear in the double-clutch speed changer, method especially according to any one of the preceding claims, It is characterized in that, on described two pump actuators (11,12) and two secondary fluid application apparatus (18,19), especially two State the valve gear (30 that energy active control is disposed between secondary fluid application apparatus (18,19);40;50).
6. fluid system according to claim 5, which is characterized in that the valve gear (30) of the energy active control is designed For two position four-way valves (31).
7. fluid system according to claim 5, which is characterized in that the valve gear (40) of the energy active control is designed For four-way valve (41).
8. fluid system according to claim 5, which is characterized in that the valve gear (50) of the energy active control is designed For rotary valve.
9. the fluid system according to any one of claim 5 to 8, which is characterized in that in the separation clutch (15,16) At least one of arrange shut-off valve (28) between the pump actuator (11,12) attached.
10. a kind of valve gear (30;40;And/or shut-off valve (28 50);38), for according to any one of the claims institute The fluid system (10) stated.
CN201810620971.4A 2017-07-11 2018-06-15 Method and system for fluid control of two partial clutches Active CN109236890B (en)

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DE102017115453.1 2017-07-11

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DE102019133810A1 (en) * 2019-12-10 2021-06-10 Fte Automotive Gmbh Hydraulic transmission actuator and assembly with such a transmission actuator and a transmission for a drive train of a motor vehicle

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