DE112005000814B4 - Hydraulic system for controlling two clutches of a gearbox - Google Patents
Hydraulic system for controlling two clutches of a gearbox Download PDFInfo
- Publication number
- DE112005000814B4 DE112005000814B4 DE112005000814.2T DE112005000814T DE112005000814B4 DE 112005000814 B4 DE112005000814 B4 DE 112005000814B4 DE 112005000814 T DE112005000814 T DE 112005000814T DE 112005000814 B4 DE112005000814 B4 DE 112005000814B4
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- check valve
- pressure line
- connection
- clutches
- 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.)
- Expired - Fee Related
Links
Images
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
- 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
- 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
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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
- F16D2048/0224—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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
- F16D2048/0233—Source 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
- F16D2048/0236—Source 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
- F16D2048/0242—Two or more rotating pumps driven together by the same power source, e.g. connected by a shaft, or a single pump having two or more fluid outputs
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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
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0263—Passive valves between pressure source and actuating cylinder, e.g. check valves or throttle valves
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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
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0266—Actively controlled valves between pressure source and actuation cylinder
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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
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0281—Complex circuits with more than two valves in series or special arrangements thereof not provided for in previous groups
-
- 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
- F16D2500/302—Signal inputs from the actuator
- F16D2500/3024—Pressure
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)
Abstract
Hydrauliksystem für die Steuerung zweier Kupplungen eines Getriebes, wobei jede der beiden Kupplungen über einen Nehmerzylinder (1, 2) verfügt, und das Hydraulikfluid von einer steuerbaren Pumpeneinheit (33) aus einem Reservoir (17) über eine erste Druckleitung (21) dem ersten Nehmerzylinder (1) und über eine zweite Druckleitung (22) dem zweiten Nehmerzylinder (2) zur Verfügung gestellt wird, dadurch gekennzeichnet, dass a) eine einzige umsteuerbare Pumpeneinheit (33) mit einem ersten und einem zweiten Anschluss vorgesehen ist, wobei je nach Förderrichtung der Verdrängungspumpe (34) entweder der eine oder andere Anschluss (7, 8) Sauganschluss und entweder der andere oder der eine Anschluss (8, 7) Druckanschluss ist, wobei die Pumpeneinheit (33) aus einer umkehrbaren Verdrängungspumpe (34) und einem umsteuerbaren Elektromotor (5) besteht, b) der erste Anschluss (7) über ein erstes bei positivem Druck schließendes Rückschlagventil (13) mit dem Reservoir (17) und über ein zweites bei positivem Druck öffnendes Rückschlagventil (14) mit einer ersten Druckleitung (21) in Verbindung steht, c) der zweite Anschluss (8) über ein drittes bei positivem Druck schließendes Rückschlagventil (15) mit dem Reservoir (17) und über ein viertes bei positivem Druck öffnendes Rückschlagventil (16) mit einer zweiten Druckleitung (22) in Verbindung steht, d) die erste Druckleitung (21) über ein fünftes Rückschlagventil (26) und die zweite Druckleitung (22) über ein sechstes Rückschlagventil (27) mit einem Manometer (25) in Verbindung steht, die einer die Pumpeneinheit (33) verstellenden Steuereinheit (30) ein Drucksignal liefert.Hydraulic system for controlling two clutches of a transmission, each of the two clutches having a slave cylinder (1, 2) and the hydraulic fluid from a controllable pump unit (33) from a reservoir (17) via a first pressure line (21) to the first slave cylinder (1) and via a second pressure line (22) to the second slave cylinder (2), characterized in that a) a single reversible pump unit (33) is provided with a first and a second connection, the depending on the direction of delivery Displacement pump (34) is either one or the other connection (7, 8) suction connection and either the other or the one connection (8, 7) pressure connection, the pump unit (33) comprising a reversible displacement pump (34) and a reversible electric motor ( 5), b) the first connection (7) via a first check valve (13) closing at positive pressure with the reservoir (17) and via a two it is connected to a first pressure line (21) in the case of positive pressure opening check valve (14), c) the second connection (8) via a third check valve (15) closing with positive pressure to the reservoir (17) and via a fourth positive pressure opening check valve (16) is connected to a second pressure line (22), d) the first pressure line (21) via a fifth check valve (26) and the second pressure line (22) via a sixth check valve (27) with a pressure gauge (25) is connected, which supplies a pressure signal to a control unit (30) adjusting the pump unit (33).
Description
Die Erfindung betrifft ein Hydrauliksystem für die Steuerung zweier Kupplungen eines Getriebes, wobei jede der beiden Kupplungen über einen Nehmerzylinder verfügt, und das Hydraulikfluid von einer steuerbaren Pumpeneinheit aus einem Reservoir über eine erste Druckleitung der ersten Kupplung und über eine zweite Druckleitung der zweiten Kupplungen zur Verfügung gestellt wird. Dabei ist gedacht an: Doppelkupplungsgetriebe, Lastschaltgetriebe, Getriebe zur einstellbaren Verteilung einer Antriebkraft auf zwei Halbwellen einer Achse oder zur Verteilung einer Antriebkraft auf zwei angetriebene Achsen und Verteilergetriebe, gegebenenfalls noch zusätzlich mit einer schaltbaren Geländegangstufe.The invention relates to a hydraulic system for controlling two clutches of a transmission, wherein each of the two clutches has a slave cylinder, and the hydraulic fluid from a controllable pump unit from a reservoir via a first pressure line of the first clutch and a second pressure line of the second clutches available is provided. It is intended to: dual-clutch transmission, powershift transmission, gearbox for adjustable distribution of a drive force on two half-shafts of an axle or for distributing a drive force to two driven axles and transfer case, possibly additionally with a switchable off-road gear.
Bei derartigen Getrieben wird üblicherweise eine starr angetriebene Pumpe eingesetzt und die Steuerung erfolgt über eine Anzahl Steuerventile. Anzahl und Schaltung der Steuerventile bedingen aus Gründen der Betriebssicherheit und Stellgenauigkeit einen erheblichen Aufwand. Es muss sichergestellt sein, dass nie beide Kupplungen gleichzeitig eingerückt sind, dass die Kupplungen (oder zumindest eine) bei Wegfall des Öldruckes öffnen(t), die Kupplungen müssen für Fahrzeuge mit ABS (elektronisch beeinflusster Bremseneingriff) auch sehr schnell ausrückbar sein. Aus der
Die
Es ist daher Ziel der Erfindung, ein einfaches, billiges, raumsparendes und absolut eigensicheres Hydrauliksystem für die Ansteuerung von zwei Kupplungen zu schaffen. Erfindungsgemäß wird das durch die kennzeichnenden Merkmale des ersten Anspruches erreicht. Die Umsteuerbarkeit der Pumpeneinheit, das heißt die Umkehr der Förderrichtung wird hier genutzt, um das Drucköl der einen oder anderen Kupplung zu liefern. Das wird durch die Anordnung der vier Rückschlagventile möglich. Dadurch wird nicht nur eine ganze Pumpe mit ihrem Antrieb eingespart, sondern auch inhärente Sicherheit gegen das Einrücken von beiden Kupplungen erzielt.It is therefore an object of the invention to provide a simple, inexpensive, space-saving and absolutely intrinsically safe hydraulic system for the control of two clutches. According to the invention this is achieved by the characterizing features of the first claim. The reversibility of the pump unit, that is, the reversal of the conveying direction is used here to supply the pressure oil of one or the other clutch. This is made possible by the arrangement of the four check valves. This not only saves a whole pump with its drive, but also inherent security against the engagement of both clutches achieved.
Erfindungsgemäß besteht die Pumpeneinheit aus einer umkehrbaren Verdrängungspumpe und einem umsteuerbaren Elektromotor. Die Verdrängungspumpe hat einen rotierenden Verdränger, so dass die Förderrichtung vom Drehsinn des Verdrängers abhängt. Sie kann zum Beispiel eine Zahnradpumpe oder eine sogenannte Gerotorpumpe sein. Die Steuerung der Pumpeneinheit erfolgt dann nur durch Regelung beziehungsweise Formung des Stromes, der dem die Verdrängungspumpe treibenden Elektromotor zugeführt wird, und somit über alle vier Quadranten des Kennfeldes.According to the invention, the pump unit consists of a reversible displacement pump and a reversible electric motor. The displacement pump has a rotating displacer, so that the conveying direction depends on the direction of rotation of the displacer. It can be, for example, a gear pump or a so-called gerotor pump. The control of the pump unit is then carried out only by regulating or shaping the current which is supplied to the electric motor driving the displacement pump, and thus over all four quadrants of the characteristic field.
Erfindungsgemäß steht die erste Druckleitung über ein fünftes Rückschlagventil und die zweite Druckleitung über ein sechstes Rückschlagventil mit einem Manometer in Verbindung, die einer die Pumpeneinheit verstellenden Steuereinheit ein Drucksignal liefert. Somit wird auch nur ein einziges Manometer benötigt und die Steuereinheit braucht den vorgegebenen Sollwert nur mit einem einzigen Regelsignal zu vergleichen. Eine weitere Vereinfachung wird dadurch erzielt, dass das fünfte und das sechste Rückschlagventil zu einem doppeltwirkenden Rückschlagventil zusammengefasst sind.According to the invention, the first pressure line is connected via a fifth check valve and the second pressure line via a sixth check valve to a pressure gauge, which supplies a pressure signal to a control unit which adjusts the pump unit. Thus, only a single pressure gauge is needed and the control unit needs to compare the predetermined setpoint only with a single control signal. A further simplification is achieved in that the fifth and the sixth check valve are combined to form a double-acting check valve.
In Weiterverfolgung des Erfindungsgedankens ist in der ersten Druckleitung ein erstes Schnellablassventil und in der zweiten Druckleitung ein zweites Schnellablassventil vorgesehen, das bei Unterschreiten eines bestimmten Druckes in der jeweiligen Druckleitung sofort von selbst öffnet, sodass auch dafür kein gesteuertes Ventil benötigt wird. Weiters kann zwischen dem doppeltwirkenden Rückschlagventil und dem Manometer ein Sicherheitsventil angeordnet sein, das bei Auftreten einer Störung öffnet. Eine solche Störung kann etwa ein Zusammenbrechen der Versorgungsspannung sein. Durch Ansprechen des Sicherheitsventiles werden die Druckleitungen drucklos und die Kupplungen öffnen.In pursuit of the inventive concept, a first quick-release valve is provided in the first pressure line and a second quick-release valve in the second pressure line, which opens immediately when falling below a certain pressure in the respective pressure line by itself, so that even no controlled valve is needed. Furthermore, between the double-acting check valve and the pressure gauge, a safety valve can be arranged, which opens when a fault occurs. Such a fault may be about a breakdown of the supply voltage. When the safety valve responds, the pressure lines are depressurized and the couplings open.
Im Folgenden wird die Erfindung anhand einer schematischen Abbildung beschrieben und erläutert. Der Nehmerzylinder der ersten Kupplung ist mit
Die Pumpeneinheit
Die Rückschlagventile (erstes
In jeder der beiden Druckleitungen
Weiters ist nur ein einziger Drucksensor
Weiters ist noch ein Sicherheitsventil
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATGM456/2004 | 2004-06-30 | ||
AT4562004 | 2004-06-30 | ||
PCT/AT2005/000245 WO2006002450A1 (en) | 2004-06-30 | 2005-06-30 | Hydraulic system for controlling two clutches of a transmission |
Publications (2)
Publication Number | Publication Date |
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DE112005000814A5 DE112005000814A5 (en) | 2007-07-26 |
DE112005000814B4 true DE112005000814B4 (en) | 2014-11-27 |
Family
ID=35149523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112005000814.2T Expired - Fee Related DE112005000814B4 (en) | 2004-06-30 | 2005-06-30 | Hydraulic system for controlling two clutches of a gearbox |
Country Status (2)
Country | Link |
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DE (1) | DE112005000814B4 (en) |
WO (1) | WO2006002450A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017101932A1 (en) | 2015-12-18 | 2017-06-22 | Schaeffler Technologies AG & Co. KG | Pump actuator for clutch actuation and gear selector actuation in a transmission of a motor vehicle |
DE102015225323A1 (en) | 2015-12-15 | 2017-06-22 | Schaeffler Technologies AG & Co. KG | Valve block for a hydraulic system of a dual-clutch transmission |
DE102016216264A1 (en) | 2016-08-30 | 2018-03-01 | Schaeffler Technologies AG & Co. KG | Fluid arrangement for actuating vehicle components |
WO2018077330A1 (en) | 2016-10-27 | 2018-05-03 | Schaeffler Technologies AG & Co. KG | Hydraulic system having pressure sensor and valve |
DE102018130700A1 (en) * | 2018-12-03 | 2020-06-04 | Schaeffler Technologies AG & Co. KG | Method for establishing a hydraulic readiness of a hydraulic system and hydraulic system |
US11111972B2 (en) | 2017-07-11 | 2021-09-07 | Schaeffler Technologies AG & Co. KG | Method for identifying leaks by means of an actuator |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006061516B4 (en) * | 2006-12-18 | 2010-11-11 | Getrag Driveline Systems Gmbh | Hydraulic arrangement for controlling two actuators |
WO2008088474A2 (en) * | 2006-12-19 | 2008-07-24 | Magna Powertrain Usa, Inc. | Hydraulic coupling |
DE102009027097A1 (en) * | 2009-06-23 | 2010-12-30 | Zf Friedrichshafen Ag | Pressure medium supply device of a hydraulically actuated switching element |
DE102011102277B4 (en) * | 2011-05-23 | 2017-03-23 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Powertrain for a motor vehicle |
DE102011105648A1 (en) | 2011-06-07 | 2012-12-13 | Fte Automotive Gmbh | Hydraulic actuator for the actuation of clutches in particular a multi-clutch transmission for motor vehicles |
DE102012010172A1 (en) * | 2012-05-15 | 2013-11-21 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Actuator assembly for a motor vehicle powertrain |
DE102012015863A1 (en) * | 2012-08-06 | 2014-05-15 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Multi-step transmission for a motor vehicle |
DE112014003738A5 (en) * | 2013-08-14 | 2016-05-19 | Schaeffler Technologies AG & Co. KG | fluid arrangement |
EP3084273B1 (en) * | 2013-12-17 | 2018-08-01 | Schaeffler Technologies AG & Co. KG | Fluid arrangement |
DE102014102250A1 (en) | 2014-02-21 | 2015-08-27 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Clutch assembly, automotive powertrain and clutch control method |
DE202016107084U1 (en) * | 2016-12-16 | 2018-03-19 | Trioliet B. V. | Planetary gear and powershift transmission |
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DE19927079A1 (en) * | 1999-06-15 | 2000-12-21 | Hydraulik Ring Gmbh | Actuator for a lock, preferably a friction lock, of a differential gear |
EP1236918A1 (en) * | 2001-02-22 | 2002-09-04 | ZF Sachs AG | Clutch system with a pump actuated clutch |
WO2003040580A1 (en) * | 2001-11-09 | 2003-05-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive train for a motor vehicle |
DE10344648A1 (en) * | 2002-10-02 | 2004-04-15 | Hoerbiger Hydraulik Gmbh | Hydraulic operating system has one side of first cylinder directly connected to compression side of supply unit |
WO2004040158A2 (en) * | 2002-10-31 | 2004-05-13 | Magna Steyr Powertrain Ag & Co Kg | Simple action actuator with a hydraulic fast-opening valve for controlling a clutch |
US20040097323A1 (en) * | 2002-11-15 | 2004-05-20 | Duan Xiaohong N. | Torque biasing assembly and method |
-
2005
- 2005-06-30 WO PCT/AT2005/000245 patent/WO2006002450A1/en active Application Filing
- 2005-06-30 DE DE112005000814.2T patent/DE112005000814B4/en not_active Expired - Fee Related
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1952824A1 (en) * | 1969-10-21 | 1971-05-19 | Standard Elek K Lorenz Ag | Device for changing points in railway systems |
DE4227001A1 (en) * | 1992-08-14 | 1994-02-17 | Rexroth Mannesmann Gmbh | Hydraulic drive for cam setting in IC engine - has hydraulic pump driven by reversible DC motor and separated from pump by non return valves cross linked to other feed lines. |
DE69406252T2 (en) * | 1993-12-03 | 1998-02-26 | Applied Power Inc | Hydraulic circuit |
DE69508316T2 (en) * | 1994-07-20 | 1999-07-15 | Applied Power Inc | Hydraulic circuit |
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EP1236918A1 (en) * | 2001-02-22 | 2002-09-04 | ZF Sachs AG | Clutch system with a pump actuated clutch |
DE10108668A1 (en) * | 2001-02-22 | 2002-09-05 | Zf Sachs Ag | Coupling system with a coupling device which can be actuated by means of a hydraulic pump arrangement |
WO2003040580A1 (en) * | 2001-11-09 | 2003-05-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive train for a motor vehicle |
DE10344648A1 (en) * | 2002-10-02 | 2004-04-15 | Hoerbiger Hydraulik Gmbh | Hydraulic operating system has one side of first cylinder directly connected to compression side of supply unit |
WO2004040158A2 (en) * | 2002-10-31 | 2004-05-13 | Magna Steyr Powertrain Ag & Co Kg | Simple action actuator with a hydraulic fast-opening valve for controlling a clutch |
US20040097323A1 (en) * | 2002-11-15 | 2004-05-20 | Duan Xiaohong N. | Torque biasing assembly and method |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015225323A1 (en) | 2015-12-15 | 2017-06-22 | Schaeffler Technologies AG & Co. KG | Valve block for a hydraulic system of a dual-clutch transmission |
CN106884907A (en) * | 2015-12-15 | 2017-06-23 | 舍弗勒技术股份两合公司 | For the valve group of the hydraulic system of double-clutch speed changer |
WO2017101932A1 (en) | 2015-12-18 | 2017-06-22 | Schaeffler Technologies AG & Co. KG | Pump actuator for clutch actuation and gear selector actuation in a transmission of a motor vehicle |
DE102015225862A1 (en) | 2015-12-18 | 2017-06-22 | Schaeffler Technologies AG & Co. KG | Pump actuator for clutch and Gangstelleraktuierung in a transmission of a motor vehicle |
DE102016216264A1 (en) | 2016-08-30 | 2018-03-01 | Schaeffler Technologies AG & Co. KG | Fluid arrangement for actuating vehicle components |
WO2018077330A1 (en) | 2016-10-27 | 2018-05-03 | Schaeffler Technologies AG & Co. KG | Hydraulic system having pressure sensor and valve |
US11111972B2 (en) | 2017-07-11 | 2021-09-07 | Schaeffler Technologies AG & Co. KG | Method for identifying leaks by means of an actuator |
DE102018130700A1 (en) * | 2018-12-03 | 2020-06-04 | Schaeffler Technologies AG & Co. KG | Method for establishing a hydraulic readiness of a hydraulic system and hydraulic system |
DE102018130700B4 (en) | 2018-12-03 | 2020-07-02 | Schaeffler Technologies AG & Co. KG | Method for establishing a hydraulic readiness of a hydraulic system and hydraulic system |
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DE112005000814A5 (en) | 2007-07-26 |
WO2006002450A1 (en) | 2006-01-12 |
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