WO2015021982A1 - Fluidanordnung - Google Patents
Fluidanordnung Download PDFInfo
- Publication number
- WO2015021982A1 WO2015021982A1 PCT/DE2014/200384 DE2014200384W WO2015021982A1 WO 2015021982 A1 WO2015021982 A1 WO 2015021982A1 DE 2014200384 W DE2014200384 W DE 2014200384W WO 2015021982 A1 WO2015021982 A1 WO 2015021982A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- arrangement according
- gear
- fluid arrangement
- fluidic
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
-
- 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
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
-
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0202—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 characterised by the signals used the signals being electric
- F16H61/0204—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of valves
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
- F16H63/20—Multiple final output mechanisms being moved by a single common final actuating mechanism with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate
Definitions
- the invention relates to a fluid arrangement for the fluidic actuation of a transmission which comprises a plurality of passages which can be selected and switched with the aid of the fluid arrangement, with a first gear actuator for representing the selection function and with a second gear actuator for representing the switching function, and with a fluidic energy source ,
- a hydraulic arrangement for controlling a dual-clutch transmission of a motor vehicle which comprises: a hydraulic energy source for supplying the hydraulic system by means of a hydraulic medium with hydraulic energy; a pressure accumulator for storing the hydraulic energy; a clutch cooling for cooling clutches of the dual-clutch transmission by means of the hydraulic medium; Clutch actuators for actuating a first clutch and a second clutch, wherein the hydraulic power source comprises a double-flow electric pump.
- the object of the invention is to simplify the actuation of a transmission which comprises a plurality of gears, which can be selected and switched by means of a fluid arrangement.
- the object is with a fluid arrangement for the fluidic actuation of a transmission, which comprises a plurality of gears, which can be selected and switched by means of the fluid arrangement, with a first gear actuator for displaying the selector function and with a second gear actuator for representing the switching function, and with a fluidic Energy source, achieved in that the fluidic energy source comprises a fluid machine with opposite fluid flow directions, which is fluidly connected via a valve logic with the gear actuators, that both the selection function and the switching function can be displayed with the one fluid machine.
- the fluid arrangement is preferably a hydraulic arrangement which is operated with a hydraulic medium, such as hydraulic oil.
- Both Gear actuators are, for example, hydraulic differential surface cylinders.
- a desired shift gate of a gear to be engaged or to be selected is selected.
- shifting the gear is engaged or designed in the previously selected shift gate.
- different gear ratios are activated or deactivated.
- the fluid arrangement according to the invention comprises only a single fluid machine, which can be driven by an electric motor, for example.
- the associated valve logic can advantageously be made relatively simple.
- the fluid machine is advantageously designed as a displacement machine, for example as a vane machine, gear machine or piston machine.
- a preferred embodiment of the fluid arrangement is characterized in that the fluid machine is designed so that it can build up a flow rate in opposite directions of flow against a load pressure.
- the fluid machine can be operated as a pump or as a motor. The operation in opposite directions is also referred to as reversing.
- valve logic comprises Nachsaugventile and overflow valves.
- the valve logic advantageously comprises only two Nachsaugventile and two overflow valves, which are associated with a fluid container.
- the Nachsaugventile together with the fluid container to represent a Nachsaugfunktion.
- the overflow valves are used in combination with the fluid container to represent an overflow function.
- a further preferred embodiment of the fluid arrangement is characterized in that the two gear actuators can be actuated via fluidic paths in different actuation directions.
- a first fluidic path includes a first fluid conduit connected to a first fluid port of the fluid machine.
- a second fluidic path includes a second fluid line connected to a second fluid port of the fluid machine.
- a further preferred exemplary embodiment of the fluid arrangement is characterized in that at least one activation valve device, in particular in each case one activation valve device, is assigned to the two fluidic routes.
- the activation valve device is, for example, as a 4/2-way valve with an open position and a closing position. executed.
- the activation valve device allows the inflow and outflow of hydraulic medium to or from the respective gear actuator. Since the sub-functions select and switch usually run sequentially, two activation valve devices can be combined.
- an activation device for example, an x / y-way valve can be used, with which the switch positions "Select while locking disable", "Switch while blocking select” and “Disable dialing and switching" can be realized.
- a further preferred embodiment of the fluid arrangement is characterized in that at least one of the gear actuators comprises a hydraulic cylinder, in particular a differential surface cylinder.
- the differential area cylinder is a fluid cylinder in which a piston is accommodated to be moved back and forth, which in turn can be subjected to fluid pressure at surfaces of different sizes.
- both gearbox actuators may include a hydraulic cylinder, such as a differential area cylinder.
- a further preferred embodiment of the fluid arrangement is characterized in that the first gear actuator is coupled via an axially displaceable, but non-rotatable connection with the second gear actuator in order to represent the selection function and the switching function.
- the axially displaceable, but non-rotatable connection advantageously serve a hydraulic cylinder, in particular a differential surface cylinder, and a pivot motor.
- the functions select and switch can also be mechanically separated from each other. If both gear actuators comprise a differential area cylinder, then, for example, by means of the one gear actuator, a translational movement can be generated. With the help of the other gear actuator can advantageously be shown a pivoting movement.
- the differential surface cylinder of the other gear actuator is advantageously coupled to a mechanism which converts a translational movement of a piston of the differential surface cylinder into a pivoting movement.
- a further preferred embodiment of the fluid arrangement is characterized in that one of the gear actuators comprises a fluidically driven swing motor.
- the fluidically driven swivel motor is advantageously used to represent the function switching.
- the function Select can advantageously be represented by means of the differential area cylinder.
- a further preferred embodiment of the fluid arrangement is characterized in that both transmission actuators are coupled to a common shift finger.
- the shift finger is guided, for example, in a guide rail, which is pivotable by means of the swivel motor.
- Another preferred exemplary embodiment of the fluid arrangement is characterized in that a pressure sensor and / or the two gear actuators are assigned a position detection to the two fluidic paths. As a result, the pressure in the fluidic paths and / or the position of the actuators can be detected in a simple manner.
- a further preferred embodiment of the fluid arrangement is characterized in that the two fluidic routes are connected by a Nachsaugventil raised and a Kochströmventil raised with a fluid container.
- the Nachsaugventil interests and the spill valve preferably comprise two valves and are used to represent a Nachsaugfunktion and overflow function.
- the valves can be designed as active or passive valves in poppet design or in slide valve design.
- a further preferred embodiment of the fluid arrangement is characterized in that the Nachsaugventil shark / spill valve means comprises two Nachsaugventi- le / overflow valves which open away from the fluid container / to the fluid container. In the opposite directions close the valves.
- a further preferred embodiment of the fluid arrangement is characterized in that the fluid machine is driven by an electric motor and / or designed as a fluid motor and / or fluid pump.
- the fluid machine is preferably designed as a 4-quadrant-capable hydraulic machine, in particular reversing pump or reversible motor.
- the fluid machine is preferably driven by an electric drive machine, for example an electric motor.
- the electric drive machine is advantageously reversible, that is operable in opposite directions of rotation, and optionally also allows a generator operation. If appropriate, the invention also relates to a method for actuating a transmission with the aid of a previously described fluid arrangement.
- FIG. 1 shows a fluid circuit diagram of a fluid arrangement according to a first embodiment
- FIG. 2 shows a similar fluid arrangement as in Figure 1 according to a second embodiment.
- FIG. 1 shows a fluid arrangement 1 with a first gear actuator 4 and a second gear actuator 5.
- the first gear actuator 4 serves to display a selection function and is assigned to a first fluidic path 8.
- the second gear actuator 5 is used to represent a switching function and is associated with a second fluidic path 9.
- the fluid assembly 1 is preferably operated with a hydraulic medium, such as hydraulic oil, and therefore also referred to as a hydraulic arrangement 1.
- the fluidic lines 8, 9 are referred to as hydraulic lines.
- the fluid arrangement 1 comprises only a single fluidic energy source 10 in the form of a fluid machine 12.
- the fluid machine 12 is also referred to as a hydraulic machine and is driven by an electric motor 14.
- the first hydraulic section 8 comprises a hydraulic line which connects the first gear actuator 4 to a first connection of the fluid machine or hydraulic machine 12.
- the second hydraulic section 9 comprises a second hydraulic line, which connects the second gear actuator 5 with a second connection of the hydraulic machine or fluid machine 12.
- the fluid arrangement 1 comprises a relatively simple valve logic 15 with a suction valve device 16 and an overflow valve device 17.
- the suction-suction valve device 16 and the overflow valve device 17 are combined with a fluid container 20 which, for example, play a hydraulic medium, such as hydraulic oil containing. Therefore, the fluid container 20 is also referred to as a hydraulic container.
- the two hydraulic sections 8, 9 are fluidly connected to each other by a Nachsaug Gustav 21 and a parallel arranged overflow line 22.
- the fluid container 20 is connected both to the secondary suction line 21 and to the overflow line 22.
- the Nachsaugventi- le 24, 25 are shown in simplified form as check valves, which close to the fluid container 20 out. From the fluid container 20 open the Nachsaugventile 24, 25 depending on the pressure.
- overflow valves 26, 27 are arranged in the overflow 22 in the overflow 22.
- the overflow valves 26, 27 are shown in simplified form as check valves.
- the overflow valves 26, 27 open towards the fluid container 20. From the fluid container away close the overflow valves 26, 27th
- the valve logic 15 with the Nachsaugventil pain 16 and the spill valve 17 is two Aktiv mecanicsventil painen 31, 32 connected upstream.
- the activation valve device 31 is connected in the first fluidic path 8 between the valve logic 15 and the first gear actuator 4.
- the second activation valve device 32 is connected in the second fluidic path 9 between the valve logic 15 and the second gear actuator 5.
- the fluid machine 12 is designed as a reversing pump, with the two gear actuators 4, 5 are particularly advantageous actuated.
- the reversing pump can build up a flow in both directions unrestricted against a load pressure.
- the Nachsaugventile 24, 25 and the spill valves 26, 27 in a simple manner allow a balanced volume flow balance.
- an actuator device which comprises two gear actuators 4, 5 and which is driven by means of a single electric motor 14 via the fluid machine 12.
- the actuator device according to the invention is therefore also referred to as a 1-motor actuator device.
- the fluid machine 12 represents via the two gear actuators 4, 5, the direction-reversible sub-functions select and switch.
- the sequential sequences during selection and switching enable the common use of a single hydraulic energy source 10, for example in the form of a so-called recirculation pump device.
- four or more gears of a simple transmission can be selected and switched in a simple manner.
- the fluid arrangement 1 according to the invention is also suitable for selecting and switching eight or more gears in a dual-clutch transmission.
- the activation valve devices 31, 32 are designed as 4/2-way valves with an open position and a closed position.
- the electromagnetically actuated activation valve devices 31, 32 are biased by a symbolically indicated spring in its illustrated closed position.
- the activation valve devices 31, 32 have two connections arranged at the bottom in FIG. 1 and two connections arranged at the top in FIG.
- the two fluidic lines 8, 9 are connected to the two lower connections of the activation valve devices 31, 32.
- the two upper connections of the activation valve device 31 are connected to a first pressure connection 41 and to a second pressure connection 42 of a hydraulic cylinder 44.
- the two upper ports of the activation valve device 32 are connected to a first pressure port 45 and to a second pressure port 46 of a hydraulic swing motor 50.
- the two activation devices 31, 32 can also be combined, for example in an x / y-way valve.
- the hydraulic swing motor 50 is rotatably connected to a guide rail 52 through which a piston rod 54 extends therethrough.
- the piston rod 54 is based on a piston which is guided to be moved back and forth in the hydraulic cylinder 44 designed as a differential surface cylinder.
- the piston rod 54 is rotatably connected via the guide rail 52 with the pivot motor 50.
- the piston rod 54 can be locked in different switching positions.
- a shift finger 58 is formed at the free, in Figure 1 right end of the piston rod 54.
- the shift finger 58 can be advantageously controlled in four directions of movement. Via the first gear actuator 4, the shift finger 58 can be moved forwards or backwards, that is to say to the right or to the left in FIG. 1, in order to select a desired shift gate. About the second gear actuator 5 with the pivot motor 50, the shift finger 58 can be rotated in one or the other direction to engage or interpret a desired gear.
- the axial movements of the piston rod 54 are performed by the piston in the hydraulic cylinder 44.
- the effective direction of the hydraulic cylinder 44 is determined by the direction of rotation of the fluid machine 12, which is preferably designed as a displacement machine.
- the activation valve device 31 To generate an axial movement of the piston rod 54, the activation valve device 31 must be actuated, that is, be moved from its illustrated closed position to its open position. In this case, volume demand differences are compensated via the intake valve device 14 and the overflow valve device 17.
- the piston rod 54 is guided by means of the guide rail 52 through the pivot motor 50 therethrough.
- a suitable geometry such as a toothed shaft or splined shaft geometry, it is possible for the pivoting motor 50 to generate a torque for initiating a desired rotational movement in a position-independent manner from the piston rod 54 via the guide rail 52 in both directions of rotation.
- the pivoting movement of the shift finger 58 is initiated by switching the activation valve device 32 from the illustrated closed position to its open position.
- the locking device 55 can be advantageously used to hold the piston rod 54 in the rotational movement in its previously selected axial position.
- Swivel motor 50 is directly related to the selected direction of rotation of the fluid machine 12.
- the hydraulic swing motor 50 is designed, for example, as a swing-wing motor.
- FIG. 2 shows a fluid arrangement 61 which is similar to the fluid arrangement 1 from FIG. To denote the same parts, the same reference numerals are used. To avoid repetition, reference is made to the preceding description of FIG. In the following, mainly the differences between the two fluid arrangements 1 and 61 will be discussed.
- the essential difference between the two fluid arrangements 1 and 61 is that the functions of selecting and switching in the fluid arrangement 61 shown in FIG. 2 can be mechanically separated from one another. In the case of the fluid arrangement 61, both the function shift and the function select via hydraulic cylinder are realized.
- a first gear actuator 64 comprises a similar hydraulic cylinder as in FIG. 1 with a piston which serves to represent the function of selecting.
- a second gear actuator 65 includes a similar hydraulic cylinder 74 having a piston from which a piston rod 75 extends.
- the piston rod 75 is coupled to a suitable mechanism 78, which makes it possible to convert an axial movement of the piston rod 75 into a pivoting movement for the shifting of the gears.
- the two upper ports of the activation valve device 32 are connected to two pressure ports 71, 72 of the hydraulic cylinder 74.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112014003747.8T DE112014003747A5 (de) | 2013-08-14 | 2014-08-06 | Fluidanordnung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013216137.9 | 2013-08-14 | ||
DE102013216137 | 2013-08-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015021982A1 true WO2015021982A1 (de) | 2015-02-19 |
Family
ID=51453550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2014/200384 WO2015021982A1 (de) | 2013-08-14 | 2014-08-06 | Fluidanordnung |
Country Status (2)
Country | Link |
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DE (2) | DE112014003747A5 (de) |
WO (1) | WO2015021982A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015218782A1 (de) | 2015-09-29 | 2017-03-30 | Schaeffler Technologies AG & Co. KG | Fluidanordnung zur Ansteuerung von Aktoreinheiten einer Getriebe-Aktoreinrichtung |
DE102016203629A1 (de) | 2016-03-07 | 2017-09-07 | Schaeffler Technologies AG & Co. KG | Fluidanordnung |
DE102017004575A1 (de) * | 2017-05-12 | 2018-11-15 | Wabco Gmbh | Wähl- und Schaltvorrichtung für ein automatisiertes Stirnrad-Schaltgetriebe |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19900852A1 (de) * | 1998-01-16 | 1999-07-22 | Atlas Fahrzeugtechnik Gmbh | Getriebe mit einer Einrichtung zur Betätigung des Drehmomentenübertragungssystems und der Getriebebetätigungselemente |
FR2807812A1 (fr) * | 2000-04-18 | 2001-10-19 | Renault | Dispositif de commande d'une boite de vitesses et boite de vitesses |
DE102008009653A1 (de) | 2007-03-07 | 2008-09-11 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulikanordnung zur Steuerung eines Doppelkupplungsgetriebes eines Kraftfahrzeuges |
DE102010047801A1 (de) | 2009-10-29 | 2011-05-05 | Schaeffler Technologies Gmbh & Co. Kg | Hydrostataktor |
EP2587097A1 (de) * | 2011-10-26 | 2013-05-01 | GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG | Schaltanordnung für ein Kraftfahrzeuggetriebe |
-
2014
- 2014-08-06 DE DE112014003747.8T patent/DE112014003747A5/de not_active Withdrawn
- 2014-08-06 WO PCT/DE2014/200384 patent/WO2015021982A1/de active Application Filing
- 2014-08-06 DE DE201410215517 patent/DE102014215517A1/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19900852A1 (de) * | 1998-01-16 | 1999-07-22 | Atlas Fahrzeugtechnik Gmbh | Getriebe mit einer Einrichtung zur Betätigung des Drehmomentenübertragungssystems und der Getriebebetätigungselemente |
FR2807812A1 (fr) * | 2000-04-18 | 2001-10-19 | Renault | Dispositif de commande d'une boite de vitesses et boite de vitesses |
DE102008009653A1 (de) | 2007-03-07 | 2008-09-11 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulikanordnung zur Steuerung eines Doppelkupplungsgetriebes eines Kraftfahrzeuges |
DE102010047801A1 (de) | 2009-10-29 | 2011-05-05 | Schaeffler Technologies Gmbh & Co. Kg | Hydrostataktor |
EP2587097A1 (de) * | 2011-10-26 | 2013-05-01 | GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG | Schaltanordnung für ein Kraftfahrzeuggetriebe |
Also Published As
Publication number | Publication date |
---|---|
DE102014215517A1 (de) | 2015-02-19 |
DE112014003747A5 (de) | 2016-05-12 |
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