WO2002004841A1 - Vorrichtung sowie verfahren zur zielgenauen versorgung von bauteilen eines automatgetriebes für kraftfahrzeuge - Google Patents
Vorrichtung sowie verfahren zur zielgenauen versorgung von bauteilen eines automatgetriebes für kraftfahrzeuge Download PDFInfo
- Publication number
- WO2002004841A1 WO2002004841A1 PCT/EP2001/007147 EP0107147W WO0204841A1 WO 2002004841 A1 WO2002004841 A1 WO 2002004841A1 EP 0107147 W EP0107147 W EP 0107147W WO 0204841 A1 WO0204841 A1 WO 0204841A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- line
- valve
- pressure
- hydraulic oil
- motor vehicles
- 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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
-
- 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
-
- 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
-
- 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
- F16H61/66—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 continuously variable gearings
- F16H61/664—Friction gearings
Definitions
- the present invention relates to a device for the precise supply of components of an automatic transmission for motor vehicles, in particular a friction wheel transmission, and a method suitable therefor.
- Stepless friction wheel gears usually have input and output disks arranged coaxially to a common shaft, which are arranged in pairs to one another and whose inner surfaces are designed in a toroidal shape, and friction wheels arranged between the pairs of input and output disks.
- These friction wheels are in frictional contact with both the input disks and the output disks and transmit the torque transmitted to them from the input disk to the output disk by frictional contact, the speed of the friction wheels being greater the greater the distance between their contact point with the Input disc and the axis of rotation is.
- the speed of the output disk is greater the closer the point of contact between the friction wheel and the output disk is to the axis of rotation.
- the speed of the output disk can therefore be adjusted continuously and arbitrarily.
- the axes of rotation of the friction wheels are mounted on a carrier which can be controlled via a pivoting device.
- the device designed according to the invention for the precise supply of components of an automatic transmission for motor vehicles therefore provides that the supply line supplying the transmission with hydraulic oil is divided into two lines, one line in the direction of flow seen has an orifice and a differential pressure valve and the second line has a pressure relief valve.
- the differential pressure valve is advantageously connected to an electrical pressure regulator, which in turn is connected to the electronic transmission control; In another advantageous embodiment, the pressure relief valve is also connected to the electrical pressure regulator.
- the hydraulic oil supplied to the transmission for the purpose of lubrication and cooling is divided into two subsets by two lines, the volume flow in one line in one of these inserted orifice and a differential pressure valve inserted therein, while in the second line the pressure in the first line in front of the orifice is set by a pressure relief valve inserted therein.
- the differential pressure valve in the first line regulates the differential pressure at the orifice inserted in the same line.
- the volume flow in the first line provided with the orifice and the differential pressure valve is set by the targeted activation of the differential pressure valve by means of a control valve in the form of an electrical pressure actuator, which in turn is connected to the electronic transmission control.
- the remaining hydraulic oil flows through the second line and is supplied to the bearing points of the gear components, for example.
- the device according to the invention has the advantage that a considerably smaller amount of hydraulic oil has to be provided for cooling and lubrication purposes, a saving of approximately 50% compared to conventional automatic transmissions being achieved.
- the exact setting of the hydraulic oil quantity in the first line provided with the orifice and the differential pressure valve enables the setting and maintenance of a predetermined temperature at heat-generating points in the automatic transmission and in particular on the starting clutch.
- the advantage of a reduced energy consumption of the hydraulic oil provided for lubrication purposes is also achieved.
- the resolution and hysteresis of the volume flow characteristic is also more advantageous compared to the conventional automatic transmission.
- Fig. 1 shows a first hydraulic oil circuit
- Fig. 2 shows a second hydraulic oil circuit according to the invention.
- Hydraulic oil for an automatic transmission which is in particular a friction gear.
- the feed line 3 is divided into two lines 1, 2 for the precise supply Components in the automatic transmission that require different operating points for cooling or lubrication.
- a differential pressure valve 5 is inserted in the first line 1 in the orifice 4, while a pressure limiting valve 6 is used in the second line 2.
- the differential pressure valve 5 in the first line 1 is connected to an electrical pressure regulator 7, which in turn is connected to the electronic transmission control 8 and is actuated by the latter in accordance with the required operating parameters.
- the pressure relief valve 6 in the second line 2 is additionally connected via the line 9 shown in broken lines to the electrical pressure actuator 7 and thus to the electronic transmission control 8.
- the hydraulic oil required for the automatic transmission is divided into two subsets and conveyed through lines 1 and 2, the volume flow in the first line 1 being able to be set exactly via the orifice 4 and the differential pressure valve 5.
- the differential pressure valve 5 generates a differential pressure at the orifice 4, the differential pressure valve 5 being controlled via the electronic transmission control 8 and the electrical pressure regulator 7. This enables an exact setting of the volume flow in line 1, which is connected to the heat-generating starting clutch of the friction gear.
- the remaining hydraulic oil flows through line 2 and serves to lubricate the bearings or the toothing, the pressure relief valve 6 provided in the second line 2 adjusting the pressure upstream of the orifice 4. If the pressure relief valve 6 is additionally controlled via the line 9 according to FIG. 2 by the electrical pressure actuator 7 and thus by the electronic transmission control 8, the pressure in the first line 1 in front of the orifice 4 can also be set.
- the exact setting of the hydraulic oil quantity in the first line 1 for setting a predetermined temperature at heat-generating points in the automatic transmission makes it possible to reduce the total quantity of hydraulic oil to be made available to the transmission by approximately 50%. At the same time, there is less energy consumption when providing lubricating pressure.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Control Of Transmission Device (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50100621T DE50100621D1 (de) | 2000-07-07 | 2001-06-23 | Vorrichtung sowie verfahren zur zielgenauen versorgung von bauteilen eines automatgetriebes für kraftfahrzeuge |
EP01943540A EP1299660B1 (de) | 2000-07-07 | 2001-06-23 | Vorrichtung sowie verfahren zur zielgenauen versorgung von bauteilen eines automatgetriebes für kraftfahrzeuge |
US10/332,357 US20030155182A1 (en) | 2000-07-07 | 2001-06-23 | Device and method for accurately supplying components of an automatic gearbox for motor vehicles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10033085A DE10033085A1 (de) | 2000-07-07 | 2000-07-07 | Vorrichtung sowie Verfahren zur zielgenauen Versorgung von Bauteilen eines Automatgetriebes für Kraftfahrzeuge |
DE10033085.1 | 2000-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002004841A1 true WO2002004841A1 (de) | 2002-01-17 |
Family
ID=7648144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/007147 WO2002004841A1 (de) | 2000-07-07 | 2001-06-23 | Vorrichtung sowie verfahren zur zielgenauen versorgung von bauteilen eines automatgetriebes für kraftfahrzeuge |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1299660B1 (de) |
DE (2) | DE10033085A1 (de) |
WO (1) | WO2002004841A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009053265A1 (de) * | 2007-10-25 | 2009-04-30 | Zf Friedrichshafen Ag | Ölversorgungseinrichtung eines schaltgetriebes |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10318070C5 (de) | 2003-04-17 | 2022-06-23 | Volkswagen Ag | Vorrichtung und Verfahren zur Schmierung und Kühlung von Zahnradgetrieben |
DE102011081006A1 (de) * | 2011-08-16 | 2013-02-21 | Zf Friedrichshafen Ag | Kühl- und Schmiersystem für ein Automatgetriebe und Verfahren zum Betreiben eines solchen |
DE102015109736A1 (de) | 2015-06-18 | 2016-12-22 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Vorrichtung zur Ölversorgung von Bauteilen eines Kraftfahrzeuggetriebes |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4501172A (en) * | 1982-08-16 | 1985-02-26 | Excelermatic Inc. | Hydraulic speed control arrangement for an infinitely variable transmission |
EP0980995A2 (de) * | 1998-08-18 | 2000-02-23 | Honda Giken Kogyo Kabushiki Kaisha | Schmiermitteldruckregler |
DE10042749A1 (de) * | 1999-10-04 | 2001-04-05 | Luk Lamellen & Kupplungsbau | Getriebe |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT389157B (de) * | 1988-07-06 | 1989-10-25 | Steyr Daimler Puch Ag | Einrichtung zur schmier- und kuehlmittelversorgung einer unter last schaltbaren kupplung eines kraftfahrzeuggetriebes |
DE3937939A1 (de) * | 1988-12-01 | 1990-06-07 | Zahnradfabrik Friedrichshafen | Steuereinrichtung fuer eine reibschluessige ueberbrueckungskupplung eines hydrodynamischen drehmomentwandlers |
DE3840942A1 (de) * | 1988-12-05 | 1990-06-07 | Ford Werke Ag | Steuereinrichtung zur druckmittelversorgung eines automatischen getriebes |
DE4020239A1 (de) * | 1989-07-05 | 1991-02-07 | Zahnradfabrik Friedrichshafen | Schmiereinrichtung fuer ein lastschaltgetriebe |
DE4242873C1 (de) * | 1992-12-18 | 1993-11-11 | Daimler Benz Ag | Drucksteuereinrichtung für eine Gruppe von Verbrauchern |
JP4029945B2 (ja) * | 1996-11-07 | 2008-01-09 | アイシン・エィ・ダブリュ株式会社 | 自動変速機の潤滑油制御装置 |
DE19705956C1 (de) * | 1997-02-17 | 1998-02-19 | Zahnradfabrik Friedrichshafen | Verfahren zur Regelung einer Wandlerkupplung bei einem Anfahrvorgang |
JP3277850B2 (ja) * | 1997-07-09 | 2002-04-22 | 日産自動車株式会社 | トロイダル型無段変速機の油圧制御装置 |
DE19903344A1 (de) * | 1999-01-28 | 2000-08-03 | Fmb Hydraulik Gmbh | Hydraulikeinrichtung |
-
2000
- 2000-07-07 DE DE10033085A patent/DE10033085A1/de not_active Withdrawn
-
2001
- 2001-06-23 EP EP01943540A patent/EP1299660B1/de not_active Expired - Lifetime
- 2001-06-23 DE DE50100621T patent/DE50100621D1/de not_active Expired - Lifetime
- 2001-06-23 WO PCT/EP2001/007147 patent/WO2002004841A1/de active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4501172A (en) * | 1982-08-16 | 1985-02-26 | Excelermatic Inc. | Hydraulic speed control arrangement for an infinitely variable transmission |
EP0980995A2 (de) * | 1998-08-18 | 2000-02-23 | Honda Giken Kogyo Kabushiki Kaisha | Schmiermitteldruckregler |
DE10042749A1 (de) * | 1999-10-04 | 2001-04-05 | Luk Lamellen & Kupplungsbau | Getriebe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009053265A1 (de) * | 2007-10-25 | 2009-04-30 | Zf Friedrichshafen Ag | Ölversorgungseinrichtung eines schaltgetriebes |
Also Published As
Publication number | Publication date |
---|---|
DE50100621D1 (de) | 2003-10-16 |
EP1299660B1 (de) | 2003-09-10 |
EP1299660A1 (de) | 2003-04-09 |
DE10033085A1 (de) | 2002-01-17 |
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