CN104047971A - Coupling device with hydraulic system and method for operating the coupling device - Google Patents
Coupling device with hydraulic system and method for operating the coupling device Download PDFInfo
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- CN104047971A CN104047971A CN201410088869.6A CN201410088869A CN104047971A CN 104047971 A CN104047971 A CN 104047971A CN 201410088869 A CN201410088869 A CN 201410088869A CN 104047971 A CN104047971 A CN 104047971A
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- Prior art keywords
- cool stream
- clutch
- valve
- stream path
- path
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/72—Features relating to cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D48/0206—Control by fluid pressure in a system with a plurality of fluid-actuated clutches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0473—Friction devices, e.g. clutches or brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control 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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation 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
- F16H61/2807—Generation 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 using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control 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
- F16H61/68—Control 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
- F16H61/684—Control 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
- F16H61/688—Control 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0221—Valves for clutch control systems; Details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0224—Details of conduits, connectors or the adaptors therefor specially adapted for clutch control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/02—Overheat protection, i.e. means for protection against overheating
- F16D2300/021—Cooling features not provided for in group F16D13/72 or F16D25/123, e.g. heat transfer details
- F16D2300/0214—Oil or fluid cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/305—Signal inputs from the clutch cooling
- F16D2500/3055—Cooling oil properties
- F16D2500/3056—Cooling oil temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
- F16D2500/70446—Clutch cooling parameters
- F16D2500/70448—Clutch cooling parameters for regulating the amount of fluid flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a coupling device, in particular a double clutch gearbox, having at least one clutch (2, 3) and a hydraulic system (1) which provides the clutch (2, 3) with a cooling flow (4). According to the invention, the hydraulic system (1) comprises a first cooling flow path (6) with a temperature-dependent aperture (8), wherein the aperture is formed as a hollow body with an average diameter and with a length in the flow direction, wherein a ratio of the length of the hollow body and the average diameter is greater than 3. The invention also relates to a method for the operation of the coupling device.
Description
Technical field
The present invention relates to a kind of clutch device, in particular for the double-clutch speed changer of Motor Vehicle, it has at least one clutch and has a hydraulic system, and described hydraulic system is supplied with described clutch with cool stream.The present invention relates to a kind of for moving the method for described clutch device in addition.
Background technique
By EP1637756B1 known a kind of double-clutch speed changer, described double-clutch speed changer comprises a hydraulic system, a first clutch and a second clutch.Described hydraulic system provides a cool stream and a lubrication flow at this, their cooling or lubricated described two clutches that are configured to wet friction clutch.Described hydraulic system has a control valve, and described cool stream can regulate by described control valve.Give described control valve the rearmounted changing valve that connects, described changing valve directs into described cool stream on described first clutch and in the second place and directs on described second clutch in primary importance.In addition, described changing valve is supplied with described second clutch with lubrication flow in described primary importance, and it supplies with described first clutch with this in the second place.Because described changing valve can be changed each second in multiple times between primary importance and the second place, so for first clutch with for second clutch, occur dividually two Bu Tong size, the volume flow of substantial constant on the time, these volume flows cause the Cooling and Lubricator of each clutch.
Regulate the described control valve of described cool stream should cover as far as possible well various running statees.Conventionally, for clutch described in lubrication and cooling, use oil, oil is high viscosity at sub-zero temperature.If for example should switch a gear in a sub-speed changer of double-clutch speed changer, attach troops to a unit so and open in the clutch of described sub-speed changer.But if this clutch of opening is supplied with the oil at sub-zero temperature, oil can cause pulling moment so, described in pull moment and make switch to become difficult or even may not accomplish.Therefore,, in handoff procedure, when oil is also very cold, should not have as far as possible cool stream or lubrication flow to reach the clutch relating to, to keep as few as possible the moment that pulls of this clutch.
When few energy is input in described clutch, the cool stream of appropriateness or lubrication flow are just enough, and it is mainly used in lubricated described clutch.In the situation that high energy input in contrast for example when one or two clutches of clutch all move in slippage, must be discharged a lot of heat, the cool stream that this requirement is large as far as possible.The adjusting of described cool stream must cover this different running state of describing reliably above.
Summary of the invention
Task of the present invention is to provide a kind of clutch device with clutch and hydraulic system, and described hydraulic system is supplied with described clutch with cool stream, and described hydraulic system can be reacted well and build as far as possible simply different running statees.
Another task is to propose a kind of for moving the method for described clutch device, the described running state of the good covering of described method.
Based on task of the present invention, according to independent power, require to solve.Embodiments of the invention can be obtained by dependent claims.
Arranged according to the present invention: described hydraulic system has the first cool stream path, described cool stream path have one with the aperture (Blende) of temperature correlation, wherein, described orifice structure is hollow body, described hollow body has average diameter and the length of streamwise, wherein, the length of described hollow body and the ratio of described average diameter are greater than 3.This ratio also can be greater than 4 or 6.For example, this ratio can be greater than 5 and be less than 10.
Described hollow body can be configured to have the pipe of constant diameter.Described average diameter is at this corresponding to described constant diameter, and it does not change in the length of described pipe.If for example described constant diameter so that the in the situation that of pipe described average diameter be 1.2mm, so in the situation that the length of tube acquisition ratio 5 of 6mm.
In the situation that form is the typical aperture of boring, wherein, the ratio obviously less (for example <1.5) of boring length phase and bore diameter, the kinetic viscosity of the mobile medium through described aperture affects flow passage resistance hardly.If use oil as flowing medium, oil kinetic viscosity consumingly with temperature correlation, although the kinetic viscosity of the difference size under different temperatures and obtain almost identical flow passage resistance in the situation that of typical aperture so, this flow passage resistance causes almost temperature independent volume flow under the pressure dependence providing.According to aperture of the present invention in the situation that, flow passage resistance is affected consumingly by oily temperature, thereby make to be less than in temperature-20 °, does not in fact provide the volume flow through described aperture with using under common hydraulic pressure oil condition.Below, the concept of " oil " and correspondingly combined concept, as " oil temperature " is synonymously used to " flowing medium ", its kinetic viscosity and temperature correlation.
Tubular aperture is called subsequently pore mouth with shortening and it is characterized in that, it does not have the parts that can move and then builds especially simply, by the aperture with temperature correlation or especially by tubular aperture, thus can be separately by the intrinsic temperature coherence of described flow passage resistance, understand in cooling/two running statees during lubricated described clutch: described the first cool stream path utilizes described pore mouth not allow volume flow in the low-down situation of oil temperature, in the low-down situation of this oil temperature, high in clutch of worry, make the become moment that pulls of difficulty of the switching of double-clutch speed changer.But, if oil temperature is in obviously higher level, for example be greater than 60 ℃, flow passage resistance is importantly only by the flow cross section in described aperture with less affect by its length so, thereby so makes to provide the certain cool stream through described aperture.The design in described aperture can be carried out in this wise at this, so make to obtain such volume flow, this volume flow is enough for the lubrication and cooling under the low-yield input condition in clutch.Low energy input for example just provides when only applying little torque to be passed on described clutch and/or when described clutch is worked with very little slip.
Described hollow body needn't be the pipe with constant diameter forcibly.For example, described hollow body can have a flow cross section, this flow cross section be not on the one hand circular and on the other hand in the length of described hollow body in certain gauge (be for example less than ± 20%) change.Can first consider that in this case such average cross-section is long-pending, it is corresponding to the mean value of the cross-section area of different sizes.From this average cross-section is long-pending, can then derive an average diameter, wherein, in the calculating of described average diameter, having implied described average cross-section long-pending is a circle.If for example described average cross-section amasss as 3mm2, average diameter will be entered 2mm so thus.
In a preferred embodiment, be provided with at least one second cool stream path, described at least one second cool stream path is in parallel with described the first cool stream path.Open and close can be carried out by the first cool stream valve in this second cool stream path.Therefore, described the first cool stream valve can have primary importance, and the in the situation that of this primary importance, described the second cool stream path does not guide volume flow.In the second place of described the first cool stream valve, described the second cool stream path can fully be opened, thereby so makes to obtain the volume flow of a maximum.By the parallel connection in the first cool stream path and the second cool stream path, the volume flow in each path is superimposed as to a total volume and flows, this total volume flows to and reaches described clutch.Described the first cool stream valve can be configured to close/open valve, and described close/open valve only can occupy only described two positions.In addition also can consider: described the first cool stream valve can occupy the 3rd position, in the 3rd position, through described the second cool stream path flow one average external volume stream.In addition also can arrange: described the first cool stream valve ends described the first cool stream path in described the second switching position.
Described the second cool stream path can be designed in this wise, makes in the situation that the volume flow of the cool stream valve of opening completely (for example, in the situation that be not more than 120 ℃ for the double-clutch speed changer of Motor Vehicle) in total range of operation of described cold oil temperature is greater than the volume flow through the aperture of described and temperature correlation.In corresponding mode of execution in the second cool stream path, in the situation that flowing, the average external volume that the cool stream valve partially opening occurs also can similarly in total range of operation of cold oil temperature, be greater than the volume flow through described the first cold oil path.In the situation that running temperature is greater than 60 ℃, can be more than half of the maximum volume stream through described the second cool stream path through the volume flow with the aperture of temperature correlation.
The 3rd cool stream path can be set in addition, and open and close can be carried out by the second cool stream valve in described the 3rd cool stream path and described the first cool stream path in parallel directed and described the 3rd cool stream path.Described the second cool stream valve can at least be switched in a primary importance and a second place at this.In these positions, described the second cool stream valve is opened completely or is completely closed.In addition, described the second cool stream valve can occupy another or the 3rd position, and the average external volume obtaining through described the 3rd cool stream path by it flows.Described average external volume stream through described the 3rd cool stream path can be greater than the volume flow in the second cool stream path of opening completely at this.
Described clutch device can have a switched system, described switched system has for switching the actuator of gear, wherein, described the first cool stream valve and/or described the second cool stream valve are connected with a switching valve by a signal line, and described switching valve is placed on the actuator of described switched system oil pressure.Described the first cool stream valve can be loaded with a signal thus, gear can be hung into or be hung up to described signal, corresponding to the signal for switching valve, by it.By described signal line, can occur by described the first cool stream valve thus: when described switched system gear shift, described the second cool stream path is always closed.Can only obtain the volume flow through described the first cool stream path in this case, wherein, the volume flow causing by described pore mouth when temperature is low equals zero or is very little.
Be used for moving clutch device, be particularly useful for moving the method according to this invention setting of double-clutch speed changer: described the second cool stream path in the situation that low energy in being input to described clutch closed and in the situation that high energy input open, and wherein, in the situation that cold oil temperature is less than-30 ℃, do not have volume flow or only very little volume flow (≤0.3 Liter Per Minute) flow through described aperture, and in the situation that cold oil temperature is greater than 80 ℃, volume flow (preferably 1.3 to 1.8l/min) higher than 1 Liter Per Minute flows through described aperture.Described method preferably arranges: in described double-clutch speed changer, during gear shift, described the second cool stream path is closed.
Accompanying drawing explanation
According to embodiment illustrated in the accompanying drawings, should explain in detail the present invention.Wherein:
Fig. 1 shows according to the parts of the hydraulic system of clutch device of the present invention;
Fig. 2 shows the parts of the hydraulic system of another embodiment of the present invention;
Fig. 3 shows another cool stream valve; And
Fig. 4 has schematically shown other parts of described hydraulic system.
Embodiment
Fig. 1 shows in the first embodiment according to the parts of the hydraulic system 1 of clutch device of the present invention.In addition, Fig. 1 has schematically shown first clutch 2 and second clutch 3.Clutch 2,3 relates to a kind of wet friction clutch, and it is supplied to cool stream 4.Described cooling medium is oil normally, but also can comprise other fluid in principle.
Described cool stream 4 guides by pipeline 5, and described pipeline is divided into the first cool stream path 6 and the second cool stream path 7.Described the first cool stream path 6 have one with the aperture of temperature correlation and guiding one 3/2 path valves, described 3/2 path valve is expressed as the first cool stream valve 9 here.In the primary importance of described the first cool stream valve 9, open and the second cool stream path 7 closures in described the first cool stream path.In the situation that this primary importance of described the first cool stream valve 9, therefore described cool stream 4 only reaches pipeline 10 by pore mouth 8, and this pipeline makes described the first cool stream valve 9 be connected with a changing valve 11.Described changing valve 11 is configured to 4/2 path valve and has 12,13 and two outlets 14,15 of two entrances.By passing into the pipeline 16 of described entrance 13, should current lubrication flow, described lubrication flow (as shown) in the primary importance of described changing valve 11 is input to first clutch 2.The described second clutch 3 so described cool stream 4 leads.Acting on pressure in described pipeline 10 should be higher than 1bar(overvoltage).
Give preposition connection one signal element 17 of described the first cool stream valve 9, described signal element is connected with described cool stream valve 9 by a signal line 18.Described signal line 18 is for transmitting such signal, and the first cool stream valve 9 can switch by this signal.In position shown in Figure 1, described signal element 17 does not produce signal or pressure.In contrast, if described signal element 17 is in another unshowned position, signal or pressure are applied on described the first cool stream valve 9 by described signal line 18 so.This pressure is by described the first cool stream valve 9 against the defeating in the second place of spring 19, and in this second place, open in closed and the second cool stream path 7, described the first cool stream path 6.
When cold oil temperature is low, described pore mouth 8 does not allow or does not substantially allow the volume flow through described the first cool stream path 6.Thus, in the situation that cold oil temperature is low and in the situation that the position shown in Fig. 1 of described the first cool stream valve does not have cool stream can reach described second clutch 3.Thus, described second clutch can at least temporarily neither lubricatedly not be cooled yet, but this can cause the low moment that pulls in described second clutch 3.The in the situation that of larger cold oil temperature, described pore mouth allows volume flow, thereby makes cool stream independently to reach second clutch 3 with the switching position of described the first cool stream valve 9 in contrast.Described the first cool stream valve 9 or described signal element 17 are configured to simple close/open valve, and it can be manufactured more inexpensively.
By described changing valve 11, cool stream 4 can be switched on first clutch 2, wherein, the lubrication flow guiding by pipeline 16 is input to second clutch 3 simultaneously.Because described changing valve 11 in multiple times moment switch, so can individually set volume flow for described clutch 2,3, so these volume flows are combined into by cool stream 4 with through the lubrication flow of pipeline 16 pro rata.If for example described changing valve 11 is in the second other switching position for two time quantum places the first switching position shown in Figure 1 with for a time quantum, so can be for described second clutch 3 obtains a volume flow, described volume flow is combined into by two-part cool stream 4 and a part of lubrication flow.Just for other viewpoint and details reference EP1637756B1 of changing valve 11.
Fig. 2 shows the parts of another embodiment of the present invention.At this, for member/feature class of Fig. 1 like or consistent member and feature with identical reference character, represent.This is also applicable to all other accompanying drawings aptly.
In addition, the described hydraulic system 1 of Fig. 2 has one second cool stream valve 20, and described the second cool stream valve constitution is 2/3 path valve.Give preposition connection one signal element 21 of described the second cool stream valve 20, described signal element is connected with described the second cool stream valve by a signal line 22.By described signal element 21, can on the second cool stream valve 20, there are three different positions: in the first switching position (as shown), described the second cool stream valve allows the volume flow of a maximum.In the second switching position, described the second cool stream valve should allow a stream that is subject to gauge, wherein, so can be moved to the left completely in the view of Fig. 2 with the valve body of 23 expressions.In also can being expressed as the 3rd position in neutral position, described the second cool stream valve separates the pipeline of inlet side 24 in contrast completely with the pipeline 25 of outlet side.
Described pipeline 24,25 is the parts in the 3rd cool stream path 26, and cool stream 4 can reach clutch 2,3 by this part.With Fig. 1 on the contrary, described clutch 2,3 is here shown in a public group.This expression is owing to such situation: according to the mode of execution of Fig. 2, should relate to and a kind ofly having at the double-clutch speed changer of seeing in the radial direction the clutch 2,3 that nested (geschachtelt) arranges, these clutches come cooling or lubricated by a public cool stream.The embodiment of Fig. 1 is the double-clutch speed changer based on so in contrast, and wherein, described clutch 2,3 is lubricated individually respectively or be cooling.When clutch 2,3 is in axial direction seen while being arranged side by side, this situation preferably.Also can consider: in the situation that radially nested clutch arranges is independent lubricated/cooling.
Cool stream that can be cooling by the cooling unit 27 only schematically showing or cold oil 4 also can reach by other path clutch 2,3.Be parallel to described the second cool stream valve 20 pipeline 28 is set, this pipeline makes cold oil pass through the first cool stream path 6 described pore mouths 8 of guiding and by described the second cool stream path 7 described the first cool stream valve 9 that leads.In the embodiment of Fig. 2, described the first cool stream valve 9 is configured to 2/2 path valve, and wherein, described the first cool stream valve 9 is here only designed to open or closed described the second cool stream path 7.
Described the first cool stream path 6 is except described pore mouth 8 is that always open and irrelevant with described the first cool stream valve 9' thus (contrary with the embodiment of Fig. 1, in this embodiment, the first cool stream valve 9' can closed described the first cool stream path 6.
In addition, Fig. 2 does not illustrate independent foreline valve or for the signal element of the first cool stream valve 9' yet.Two signal lines 29,30 are only shown, and signal or pressure can be switched on the first cool stream valve 9 by them.Described signal or described signal line 29,30 are inquired into after a while in detail.
If the first cool stream valve 9 and the closed described cool stream of the second cool stream valve 20 path 7,26, so only also have the cold oil through described pore mouth can reach described clutch 2,3.By described pore mouth 8, cause ground, this in the situation that low cold oil temperature cause to the low-down volume flow of clutch 2,3 or there is no volume flow.Then the volume flow that should arrive by described the first cool stream path should equal 0 or be less than 0.3 Liter Per Minute in one embodiment.In contrast, if described cold oil temperature is for example, higher than 60 ℃ (80 ℃), the described volume flow through described pore mouth 8 should be 1.0 to 1.5 Liter Per Minutes so.In contrast, if described the first cool stream valve 9' place shown in figure 2 in switching position, so through should the flow volume flow of 2.5 Liter Per Minutes of described the second cool stream path 7.If then also additionally open described the second cool stream valve 20, should for example reach, more than 15 Liter Per Minutes (20l/min through described the 3rd cool stream path 26 so in one embodiment, the second cool stream valve is in its first switching position) or 5 to 7 Liter Per Minutes (for example 6l/min, the second cool stream valve 20 is in its second switching position).Thus, by cool stream valve 9,20 shown in figure 2 can from temperature correlation occur to the volume flow of a plurality of different sizes of clutch 2,3.
Fig. 3 shows for cool stream valve, is particularly useful for another embodiment of the second cool stream valve 20 of Fig. 2.The cool stream valve of described Fig. 3 represents with 31 and is configured to 4/3 path valve.As also the second cool stream valve 20 in the situation that, described cool stream valve 31 pipeline 24,25 completely separately in switching position in the middle of, thus described the 3rd cool stream path 26 can be closed.Give described cool stream valve 31 the rearmounted apertures 32 that connect, described aperture in the situation that described the second cool stream valve 20 of Fig. 2 be integrated in described valve.
Fig. 4 shows another parts of described hydraulic system 1.The parts of the described hydraulic system 1 being illustrated in Fig. 2 are combined into a group and represent with 33 in Fig. 4.
According to Fig. 4, described hydraulic system 1 also comprises a switched system only schematically showing 34, and the gear of double-clutch speed changer can pass through this switched system, via actuator, hangs into and hangs up.In addition, described hydraulic system 1 comprises the first pressure regulator 35 and the second pressure regulator 36, on them, by pipeline 37, applies operating pressure.In postposition, be connected in the pipeline 38 of the first pressure regulator 35 and have the pressure through regulating, it is drawn towards the first changing valve 40.By this changing valve 40, the pressure through regulating being applied in described pipeline 38 of described the first pressure regulator 35 can or be placed on first clutch 2, be placed on transducer 41, from this transducer out, then the described pressure through regulating reach described switched system 34.If the described pressure through regulating is placed on described switched system 34, so described changing valve regulates with no pressurely by first clutch 2, thereby it is opened.
Be similar to the first pressure regulator 35, the pressure that described the second pressure regulator 36 produces through regulating, the pipeline 39 that this pressure through regulating connects by postposition is drawn towards the second changing valve 42.Described the second changing valve 42 is by the pressure guiding second clutch 3 through regulating or the guiding transducer 41 of described the second pressure regulator 36.With inlet side applied pressure relatively, described transducer 41 or set up the connection between described changing valve 40 and described switched system 34, or set up the connection between described changing valve 42 and described switched system 34.Described transducer 41 always continues the higher pressure of inlet side to direct on described switched system 34 at this.
Give preposition connection one signal element 43 of described the first changing valve 40, described signal element produces (control) signal or for switching the pressure of described the first changing valve 40.If this class control signal or pilot pressure are applied on described the first changing valve, this valve is switched to described transducer 41 by the pressure through regulating in pipeline 38 and thus on described switched system 34 so.Described the first pressure regulator can be used to hang into or hang up gear thus.If described control signal is applied on described the first changing valve 40, its while signal line 30 based on set is also applied to described the first cool stream valve 9' above so, thereby makes described the second cold oil path 7(see Fig. 2) closure.In this case, when the while also closed described the second cool stream valve 20, cold oil only can also reach described clutch 2,3 through described pore mouth 8 by described the first cool stream path 6.But, in the situation that the temperature of cold oil is low, do not have volume flow to pass described pore mouth and reach described clutch 2,3, thereby so make not overcome large in clutch 2,3 the low-down temperature in the situation that by described switched system 34 yet and pull moment ground and can hang into or hang up gear.
Described the second changing valve 42 also has signal element 44.If described signal element 44 produces signals or a control signal or for the pilot pressure of described the second changing valve 42, the pressure producing by described the second pressure regulator 36 so is no longer switched on described second clutch, but is switched on described switched system 34 by described transducer 41.Also here by described signal line 29, guarantee: the signal of described signal element 44 is guided and this cool stream valve is pressed onto in following position to described the first cool stream valve 9', in this position, described the second cool stream path 7 closures.
For described the first cool stream valve 9' use when switching described double-clutch speed changer described in the control signal after all existing of signal element 43,44 simplified described hydraulic system 1.The control signal that is alternatively to described signal element 43,44 also can be used the other signal that for example comes from described switched system 34, in the time must hanging in described double-clutch speed changer or hang up gear, these other signals after all produce by described hydraulic system.
Reference numerals list
1 hydraulic system
2 first clutches
3 second clutches
4 cool stream
5 pipelines
6 first cool stream paths
7 second cool stream paths
8 pore mouths
9 first cool stream valves (9,9')
10 pipelines
11 changing valves
12 entrances
13 entrances
14 outlets
15 outlets
16 pipelines
17 signal elements
18 signal lines
19 springs
20 second cool stream valves
21 signal elements
22 signal lines
23 valve bodies
24 pipelines
25 pipelines
26 the 3rd cool stream paths
27 cooling units
28 pipelines
29 signal lines
30 signal lines
31 second cool stream valves
32 apertures
33 groups
34 switched systems
35 first pressure regulators
36 second pressure regulators
37 pipelines
38 pipelines
39 pipelines
40 first changing valves
41 transducers
42 second changing valves
43 signal elements
44 signal elements
Claims (12)
1. clutch device, especially a double-clutch speed changer, described clutch device has at least one clutch (2, 3) and there is a hydraulic system (1), described hydraulic system is supplied with described clutch (2 with cool stream (4), 3), it is characterized in that, described hydraulic system (1) has the first cool stream path (6), described the first cool stream path have one with the aperture (8) of temperature correlation, wherein, described orifice structure is hollow body, described hollow body has average diameter and the length of streamwise, wherein, the length of described hollow body and the ratio of described average diameter are greater than 3.
2. clutch device according to claim 1, is characterized in that, described ratio is greater than 5 and be less than 10.
3. clutch device according to claim 1 and 2, is characterized in that, described hollow body is one to have the pipe of constant diameter.
4. according to the clutch device one of claims 1 to 3 Suo Shu, it is characterized in that, be provided with at least one the second cool stream path (7) that is parallel to described the first cool stream path (6) guiding, the first cool stream valve (9 can be passed through in described at least one second cool stream path; 9') carry out open and close.
5. clutch device according to claim 4, is characterized in that, described the second cool stream path (7) allows a volume flow, and described volume flow is greater than the volume flow through the aperture (8) of described and temperature correlation in total range of operation of cool stream temperature.
6. clutch device according to claim 5, is characterized in that, in the situation that running temperature is greater than 60 ℃, through the volume flow in the aperture (8) of described and temperature correlation, is less than through 3/4ths of the volume flow in described the second cool stream path (7).
7. according to the clutch device one of claim 4 to 6 Suo Shu, it is characterized in that, the 3rd cool stream path (26) is set, and open and close can be carried out by the second cool stream valve (20) in described the 3rd cool stream path and described the first cool stream path (6) in parallel directed and described the 3rd cool stream path.
8. clutch device according to claim 7, is characterized in that, described the second cool stream valve (20) can occupy such position, occurs the average external volume stream through described the 3rd cool stream path (26) in this position.
9. clutch device according to claim 8, is characterized in that, described average external volume stream is greater than the volume flow in the described second cool stream path (7) of opening.
10. according to the clutch device one of claim 4 to 9 Suo Shu, it is characterized in that, described clutch device has a switched system (34), and described switched system has for switching the actuator of gear, wherein, and described the first cool stream valve (9; 9') by a signal line (29,30), be connected with a switching valve (40,42), described switching valve is placed on the described actuator of described switched system (34) handling pressure.
11. for moving clutch device, be particularly useful for moving the method for double-clutch speed changer, wherein, described clutch device comprises at least one clutch (2, 3) and one hydraulic system (1), described hydraulic system is supplied with described clutch (2 with cool stream (4), 3) and there is the first cool stream path (6) and the second cool stream path (7), described the first cool stream path have one with the aperture (8) of temperature correlation, described the second cool stream path and described the first cool stream path (6) arrange in parallel, wherein, described the second cool stream path (7) is input to described clutch (2 at few energy, 3) closed and open when high energy input in the time of in, and wherein, in the situation that cool stream temperature is less than-30 ℃, the volume flow that there is no volume flow or be only less than 0.3l/min flows through described aperture, described aperture (8) allows to surpass the volume flow of 1.0l/min in the situation that cool stream temperature is greater than 60 ℃.
12. methods according to claim 11, is characterized in that, when gear shift in described double-clutch speed changer, and described the second cool stream path (7) closure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013102415.7 | 2013-03-11 | ||
| DE102013102415.7A DE102013102415B4 (en) | 2013-03-11 | 2013-03-11 | Coupling device with hydraulic system |
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| Publication Number | Publication Date |
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| CN104047971A true CN104047971A (en) | 2014-09-17 |
| CN104047971B CN104047971B (en) | 2019-02-15 |
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| CN201410088869.6A Active CN104047971B (en) | 2013-03-11 | 2014-03-11 | Clutch apparatus with hydraulic system and the method for running clutch apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104047971B (en) |
| DE (1) | DE102013102415B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448598A (en) * | 2017-07-31 | 2017-12-08 | 安徽江淮汽车集团股份有限公司 | A kind of clutch control of gearbox |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015225090A1 (en) * | 2015-12-14 | 2017-06-14 | Schaeffler Technologies AG & Co. KG | Actuation module for a hydraulically actuated clutch actuation |
| DE102018202844B4 (en) * | 2018-02-26 | 2021-07-01 | Magna Pt B.V. & Co. Kg | Method for diagnosing a hydraulic system of a motor vehicle |
| CN109404521A (en) * | 2018-11-29 | 2019-03-01 | 重庆青山工业有限责任公司 | A kind of cooling circuit system of double-clutch automatic gearbox |
| DE102020127947B3 (en) * | 2020-10-23 | 2021-10-28 | Universität Rostock | Valve arrangement |
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| CN87108336A (en) * | 1986-12-10 | 1988-07-27 | 伊马治公司 | Be used for and be equipped with the multifunctional measuring control device with variable-volume chamber and the fluid supply circuit of ink jet printhead |
| CN101135368A (en) * | 2006-08-07 | 2008-03-05 | 丰田自动车株式会社 | Hydraulic stroking device, planetary gear automatic transmission, and clutch apparatus |
| EP1637756B1 (en) * | 2004-09-16 | 2011-04-13 | Getrag Ford Transmissions GmbH | Double clutch transmission with an hydraulic system to provide pressures and flows |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT73393B (en) | 1914-03-24 | 1917-05-10 | Leopold Kail | Sewing strap. |
| DE102004033362B4 (en) | 2004-07-02 | 2007-05-16 | Getrag Getriebe Zahnrad | Hydraulic circuit for a dual-clutch transmission |
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2013
- 2013-03-11 DE DE102013102415.7A patent/DE102013102415B4/en active Active
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- 2014-03-11 CN CN201410088869.6A patent/CN104047971B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87108336A (en) * | 1986-12-10 | 1988-07-27 | 伊马治公司 | Be used for and be equipped with the multifunctional measuring control device with variable-volume chamber and the fluid supply circuit of ink jet printhead |
| EP1637756B1 (en) * | 2004-09-16 | 2011-04-13 | Getrag Ford Transmissions GmbH | Double clutch transmission with an hydraulic system to provide pressures and flows |
| CN101135368A (en) * | 2006-08-07 | 2008-03-05 | 丰田自动车株式会社 | Hydraulic stroking device, planetary gear automatic transmission, and clutch apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448598A (en) * | 2017-07-31 | 2017-12-08 | 安徽江淮汽车集团股份有限公司 | A kind of clutch control of gearbox |
| CN107448598B (en) * | 2017-07-31 | 2019-04-16 | 安徽江淮汽车集团股份有限公司 | A kind of clutch control of gearbox |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013102415B4 (en) | 2022-05-25 |
| DE102013102415A1 (en) | 2014-09-25 |
| CN104047971B (en) | 2019-02-15 |
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