DE10305914A1 - Gearbox, especially automatic gearbox for motor vehicle, has oil channels in controller, housing and/or shafts with oil openings for cooling loss points, oil openings have viscosity-dependent chokes - Google Patents
Gearbox, especially automatic gearbox for motor vehicle, has oil channels in controller, housing and/or shafts with oil openings for cooling loss points, oil openings have viscosity-dependent chokes Download PDFInfo
- Publication number
- DE10305914A1 DE10305914A1 DE10305914A DE10305914A DE10305914A1 DE 10305914 A1 DE10305914 A1 DE 10305914A1 DE 10305914 A DE10305914 A DE 10305914A DE 10305914 A DE10305914 A DE 10305914A DE 10305914 A1 DE10305914 A1 DE 10305914A1
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- Germany
- Prior art keywords
- oil
- dependent
- gearbox
- viscosity
- openings
- 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.)
- Ceased
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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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
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
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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
- F16H57/0434—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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0456—Lubrication by injection; Injection nozzles or tubes 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/72—Inputs being a function of gearing status dependent on oil characteristics, e.g. temperature, viscosity
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
Die Erfindung betrifft Getriebe mit Getriebeölkanälen, insbesondere automatisch schaltbare Getriebe von Kraftfahrzeugen, mit den Merkmalen des Anspruchs 1.The invention relates to gears with Transmission oil channels, in particular automatically switchable transmission of motor vehicles, with the features of claim 1.
Der Wirkungsgrad von automatisch schaltbaren Getrieben wird bisher im wesentlichen bei Betriebstemperatur optimiert. Die Starttemperatur beim aktuellen ECE-Zyklus beginnt jedoch schon bei 20° C und zukünftig wahrscheinlich bei -7° C. Untersuchungen zeigen, dass vor allem zwischen 20° C und -7° C die Verlustleistung von automatischen Getrieben und damit deren Verbrauch deutlich erhöht ist. Üblicherweise erwärmt sich zunächst das dem schaltbaren Getriebe vor allem zum Betätigen der Schaltkupplungen und zum Wärmetransport zugeführte Getriebeöl vorrangig im Wandler und in der Pumpe schneller als Getriebeteile. Zur Reduktion des Kraftstoffverbrauchs im ECE-Zyklus und im realen Betrieb von Kraftfahrzeugen ist es deshalb als sinnvoll angesehen worden, das Getriebeöl des Getriebes schnell zu erwärmen.The efficiency of automatic switchable gears have so far been essentially at operating temperature optimized. The start temperature for the current ECE cycle begins however already at 20 ° C and future probably at -7 ° C. Studies show that the power loss is mainly between 20 ° C and -7 ° C of automatic transmissions and thus their consumption is significantly increased. Usually heated yourself first that the switchable transmission especially for actuating the clutches and for heat transport supplied Priority gear oil in the converter and in the pump faster than gear parts. For reduction of fuel consumption in the ECE cycle and in real operation of motor vehicles it was therefore considered sensible to use the gearbox oil in the gearbox to warm up quickly.
Die
Aufgabe der Erfindung ist es, Getriebe mit Getriebeölkanälen, insbesondere automatisch schaltbare Getriebe von Kraftfahrzeugen, zu schaffen, die mit reduzierten Verlusten betrieben werden können.The object of the invention is gear with transmission oil channels, in particular automatically switchable transmissions of motor vehicles, to create that can be operated with reduced losses.
Die Lösung erfolgt mit Getrieben mit Getriebeölkanälen, insbesondere automatisch schaltbaren Getrieben von Kraftfahrzeugen, mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen dargestellt.The solution is with gears with transmission oil channels, in particular automatically switchable transmissions of motor vehicles, with the features of Claim 1. Advantageous embodiments of the invention are in the subclaims shown.
Gemäß der Erfindung weist ein Getriebe, insbesondere ein automatisch schaltbares Getriebe von Kraftfahrzeugen, Ölöffnungen an Getriebeölkanälen in Steuerung, Gehäuse und/oder Wellen auf. Die Ölöffnungen weisen zum Kühlen der Verluststellen im Getriebe viskositätsabhängige Drosseln auf, die bei kühlem Ö1 mit hoher Viskosität weniger Getriebeöl bei gegebenem Druckniveau durch lassen. Erfindungsgemäß können die Ölöffnungen betriebszustandsabhängig vergrößert werden, um damit den Druckwiderstand zu verringern und damit automatisch, z. B. bei druckgeregeltem oder druckabhängigem Getriebeölstrom, die Getriebeölmenge erhöhen zu können, so dass sich der Vorteil ergibt, daß in der Warm laufphase bei noch kühlem Getriebeöl mit hoher Viskosität weniger Getriebeöl durch die Getriebeölkanäle abgegeben werden kann und sich so in der Warmlaufhase die relevanten Verluststellen im Getriebe bei reduzierter Beaufschlagung mit Getriebeöl schneller erwärmen und so schneller ein günstiger Wirkungsgrad des erfindungsgemäßen Getriebes und z. B. Kosteneinsparungen durch geringeren Kraftstoffverbrauch eines Motors des Kraftfahrzeugs im Zyklus und im realen Betrieb erreichbar ist.According to the invention, a transmission has in particular an automatically switchable transmission of motor vehicles, oil openings on transmission oil channels in the controller, casing and / or waves. The oil holes exhibit for cooling the loss points in the gearbox on viscosity-dependent throttles, which with high Ö1 cool viscosity less gear oil let the given pressure level through. According to the oil openings operating condition dependent be enlarged, to reduce the pressure resistance and thus automatically, z. B. with pressure-controlled or pressure-dependent gear oil flow, the transmission oil quantity increase to can, so that there is the advantage that in the warm-up phase even cooler transmission oil with high viscosity less gear oil released through the transmission oil passages the relevant loss points in the warm-up phase in the transmission faster with reduced exposure to transmission oil heat and so a faster efficiency of the transmission according to the invention and z. B. Cost savings through lower fuel consumption The motor of the motor vehicle can be reached in the cycle and in real operation is.
Gemäß einer bevorzugten Ausgestaltung der Erfindung sind die viskositätsabhängigen Drosseln als Bohrungen mit konstanter Geometrie, als Bimetallventile, als vorzugsweise durch Temperatursensor gesteuerte Magnetventile oder als Gedächtnismetalle ausgebildet.According to a preferred embodiment of the Invention are the viscosity-dependent chokes as bores with constant geometry, as bimetallic valves, as preferably controlled by temperature sensor solenoid valves or as memory metals educated.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung ist eine getaktete Ansteuerung des Getriebeöls für die Getriebeölkanäle zur Mengenregelung vorgesehen. Durch die Druckpulsation wird vermieden, dass sich bei reduzierter Menge des Getriebeöls eine falsche Mengenaufteilung ergibt, bei der die in Durchflussrichtung vorn liegenden Verluststellen viel und die in Durchflussrichtung hinten liegenden Verluststellen wenig bekämen, wenn die Getriebeölverteilung bedarfsgerecht, wie üblich durch Blenden und Durchflußwiderstände fest eingestellt und nur mit dieser konstanten Menge die richtige Aufteilung gegeben wäre. Die Taktung gemäß der Erfindung ist so ausgelegt, dass in der Abschaltphase keine Mangelschmierung an welchen Stellen des Getriebes auch immer auftritt und in der Durchflussphase ausreichende Schmierung sicher gestellt ist, wobei in der Summe deutlich weniger gekühlt wird bis zu einer möglichst schnellen Erwärmung des Getriebes auf Betriebstempe ratur. Vorzugsweise reduziert die getaktete Ansteuerung die Durchflußmenge des Getriebeöls durch die Getriebeölkanäle betriebszustandsabhängig, nämlich last-, motordrehzahl-, gang-, schaltungs- und temperaturabhängig.According to another preferred Embodiment of the invention is a clocked control of the gear oil for the gear oil channels for quantity control intended. The pressure pulsation avoids that at reduced amount of gear oil incorrect quantity distribution results in the in the flow direction Lots of loss at the front and in the direction of flow little loss at the rear if the gear oil distribution as needed, as usual through Orifices and flow resistances firmly set and only with this constant amount the correct distribution would be given. The clocking according to the invention is designed so that there is no lack of lubrication in the shutdown phase wherever the gearbox occurs and in which Sufficient lubrication is ensured in the flow phase, whereby in total, cooling is significantly less up to one possible rapid warming of the gearbox to operating temperature. Preferably reduces the clocked control through the flow rate of the transmission oil the gear oil channels depending on the operating state, namely load, depending on engine speed, gear, circuit and temperature.
Die Erfindung wird im Folgenden anhand eines bevorzugten Ausführungsbeispiels beschrieben.The invention is explained below of a preferred embodiment described.
Ein automatisch schaltbares Getriebe eines Kraftfahrzeugs weist Getriebeölkanäle in seiner Steuerung, Gehäuse und/oder Wellen auf, durch die Getriebeöl druckgeregelt oder druckabhängig gefördert wird. Die Getriebeölkanäle sind mit Ölöffnungen mit viskositätsabhängigen Drosseln versehen. Durch die Ölöffnungen an den Getriebeölkanälen tritt Getriebeöl zum Kühlen der Verluststellen im Getriebe aus.An automatically switchable transmission of a motor vehicle has transmission oil channels in its control, housing and / or shafts through which Gear oil is pressure regulated or pressure dependent. The transmission oil channels are provided with oil openings with viscosity-dependent throttles. Gear oil escapes through the oil openings on the gear oil channels to cool the loss points in the gear.
Die viskositätsabhängigen Drosseln sind als Bohrungen mit konstanter Geometrie, als Bimetallventile, als vorzugsweise durch Temperatursensor gesteuerte Magnetventile oder als Gedächtnismetalle ausgebildet.The viscosity-dependent chokes are as bores with constant geometry, as bimetallic valves, as preferred solenoid valves controlled by temperature sensors or as memory metals educated.
Es ist eine getaktete Ansteuerung des Getriebeöls für die Getriebeölkanäle vorgesehen, bei der immer entweder die Auslegungsmenge oder nichts durchfließt, so daß in der Summe mit weniger Getriebeöl deutlich weniger gekühlt wird bis zu einer möglichst schnellen Erwärmung des Getriebes auf Betriebstemperatur.It is a clocked control of the transmission oil for the Gear oil channels provided, where always either the design quantity or nothing flows through, so that in the Total with less gear oil significantly less chilled will be up to one if possible rapid warming of the gearbox to operating temperature.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10305914A DE10305914A1 (en) | 2003-02-13 | 2003-02-13 | Gearbox, especially automatic gearbox for motor vehicle, has oil channels in controller, housing and/or shafts with oil openings for cooling loss points, oil openings have viscosity-dependent chokes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10305914A DE10305914A1 (en) | 2003-02-13 | 2003-02-13 | Gearbox, especially automatic gearbox for motor vehicle, has oil channels in controller, housing and/or shafts with oil openings for cooling loss points, oil openings have viscosity-dependent chokes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10305914A1 true DE10305914A1 (en) | 2004-08-26 |
Family
ID=32747787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE10305914A Ceased DE10305914A1 (en) | 2003-02-13 | 2003-02-13 | Gearbox, especially automatic gearbox for motor vehicle, has oil channels in controller, housing and/or shafts with oil openings for cooling loss points, oil openings have viscosity-dependent chokes |
Country Status (1)
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DE (1) | DE10305914A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007018504A1 (en) * | 2007-04-19 | 2008-10-23 | Zf Friedrichshafen Ag | Coolant and lubricant supply system for use in railcar gearbox system, has cooling branch closable with locking device depending on temperature of operating medium for prioritized supply of lubricating fitting |
DE102012000782A1 (en) * | 2012-01-17 | 2013-07-18 | Gm Global Technology Operations, Llc | Lubricant supply system for gear box in vehicle, has conduit including opening by which lubricant is selectively applied on outer surface of gearbox, where controllable valve opens and closes opening of conduit |
DE102012004876A1 (en) * | 2012-03-10 | 2013-09-12 | Daimler Ag | Transmission device i.e. automatic transmission device, for e.g. passenger car, has control and/or regulation unit exhibiting interval function to adjust lubricant/coolant flow to two different values within lubricant/coolant demand phase |
WO2015040308A1 (en) * | 2013-09-23 | 2015-03-26 | Renault S.A.S | Method for controlling the lubrication of a speed reducer of a motor vehicle and related lubrication device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3313830C2 (en) * | 1983-04-16 | 1992-02-13 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
DE3329802C2 (en) * | 1983-08-18 | 1992-11-26 | Wabco Westinghouse Fahrzeugbremsen Gmbh, 3000 Hannover, De | |
DE4228313A1 (en) * | 1992-08-26 | 1994-03-03 | Leybold Ag | Counterflow leak detector with high vacuum pump |
DE69017616T2 (en) * | 1989-12-19 | 1995-08-31 | Kone Elevator Gmbh | Control valve for hydraulic elevator. |
DE19637817A1 (en) * | 1996-09-17 | 1998-03-19 | Laengerer & Reich Gmbh & Co | Device and method for cooling and preheating |
DE19840115C1 (en) * | 1998-09-03 | 1999-11-11 | Wessel Hydraulik | Load switching drive control for excavator vehicle |
DE19856941C1 (en) * | 1998-12-10 | 2000-02-17 | Daimler Chrysler Ag | Lubrication system for gearbox in road vehicle incorporates pump and control valve |
DE19737253C2 (en) * | 1997-08-27 | 2000-11-30 | Danfoss Fluid Power As Nordbor | Hydraulic control device |
-
2003
- 2003-02-13 DE DE10305914A patent/DE10305914A1/en not_active Ceased
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3313830C2 (en) * | 1983-04-16 | 1992-02-13 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
DE3329802C2 (en) * | 1983-08-18 | 1992-11-26 | Wabco Westinghouse Fahrzeugbremsen Gmbh, 3000 Hannover, De | |
DE69017616T2 (en) * | 1989-12-19 | 1995-08-31 | Kone Elevator Gmbh | Control valve for hydraulic elevator. |
DE4228313A1 (en) * | 1992-08-26 | 1994-03-03 | Leybold Ag | Counterflow leak detector with high vacuum pump |
DE19637817A1 (en) * | 1996-09-17 | 1998-03-19 | Laengerer & Reich Gmbh & Co | Device and method for cooling and preheating |
DE19737253C2 (en) * | 1997-08-27 | 2000-11-30 | Danfoss Fluid Power As Nordbor | Hydraulic control device |
DE19840115C1 (en) * | 1998-09-03 | 1999-11-11 | Wessel Hydraulik | Load switching drive control for excavator vehicle |
DE19856941C1 (en) * | 1998-12-10 | 2000-02-17 | Daimler Chrysler Ag | Lubrication system for gearbox in road vehicle incorporates pump and control valve |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007018504A1 (en) * | 2007-04-19 | 2008-10-23 | Zf Friedrichshafen Ag | Coolant and lubricant supply system for use in railcar gearbox system, has cooling branch closable with locking device depending on temperature of operating medium for prioritized supply of lubricating fitting |
DE102007018504B4 (en) * | 2007-04-19 | 2016-11-17 | Zf Friedrichshafen Ag | Coolant and lubricant supply system of a transmission |
DE102012000782A1 (en) * | 2012-01-17 | 2013-07-18 | Gm Global Technology Operations, Llc | Lubricant supply system for gear box in vehicle, has conduit including opening by which lubricant is selectively applied on outer surface of gearbox, where controllable valve opens and closes opening of conduit |
DE102012004876A1 (en) * | 2012-03-10 | 2013-09-12 | Daimler Ag | Transmission device i.e. automatic transmission device, for e.g. passenger car, has control and/or regulation unit exhibiting interval function to adjust lubricant/coolant flow to two different values within lubricant/coolant demand phase |
WO2015040308A1 (en) * | 2013-09-23 | 2015-03-26 | Renault S.A.S | Method for controlling the lubrication of a speed reducer of a motor vehicle and related lubrication device |
FR3011054A1 (en) * | 2013-09-23 | 2015-03-27 | Renault Sa | METHOD FOR CONTROLLING THE LUBRICATION OF A MOTOR VEHICLE SPEED REDUCER AND ASSOCIATED LUBRICATION DEVICE |
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Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |
Effective date: 20130411 |