DE3414490A1 - Multi-stage automatic transmission with a lock-up clutch and a F omega ttinger torque converter with an injector - Google Patents
Multi-stage automatic transmission with a lock-up clutch and a F omega ttinger torque converter with an injectorInfo
- Publication number
- DE3414490A1 DE3414490A1 DE19843414490 DE3414490A DE3414490A1 DE 3414490 A1 DE3414490 A1 DE 3414490A1 DE 19843414490 DE19843414490 DE 19843414490 DE 3414490 A DE3414490 A DE 3414490A DE 3414490 A1 DE3414490 A1 DE 3414490A1
- Authority
- DE
- Germany
- Prior art keywords
- turbine
- torque
- converter
- lock
- clutch
- 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.)
- Withdrawn
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/105—Final actuators by passing part of the fluid
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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
- F16D33/00—Rotary fluid couplings or clutches of the hydrokinetic type
- F16D33/02—Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the flow of the liquid in the working circuit, while maintaining a completely filled working circuit
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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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/48—Control of exclusively fluid gearing hydrodynamic
- F16H61/50—Control of exclusively fluid gearing hydrodynamic controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Fluid Gearings (AREA)
- Structure Of Transmissions (AREA)
Abstract
Description
Mehrstu figes Automatikgetriebe mit Überbrückungskupplung und Föttinger-Wandler mit Injektor Die Erfindung bezieht sich auf ein mehrstufiges Automatikgetriebe mit Überbrückungskupplung und Föttinger -Wandlermit 1 nj ektor.Multi-stage automatic transmission with lock-up clutch and Föttinger converter with injector The invention relates to a multi-stage automatic transmission with Lock-up clutch and Föttinger converter with 1 nj ector.
Es ist ein Föttinger-Wandler mit einer Vorrichtung zu Nutzung des Injektoreffektes bekannt (D. Pat.Anm.P 34 09 934.4), Dieter Wandler eignet sich besonders für die Anwendung in einernmehrstufigen Automatikgetriebe.It is a Föttinger converter with a device to use the Injector effect known (D. Pat.Anm.P 34 09 934.4), Dieter Wandler is suitable especially for use in a multi-stage automatic transmission.
Wie in der o.a. Patentanmeldung gezeigt, kann man mit der zwischen Pumpenauslaß und Turbineneinlaß angebrachten Vorrichtung zur Nutzung des Injektoreffektes die Strömungsverluste im Wandler verringern und somit speziell bei kleinem Drehzahlverhältnis das Tu rbinendehmoment und den Wandlerwirkungsgrad heraufsetzen.As shown in the above patent application, the between Pump outlet and turbine inlet attached device to use the injector effect reduce the flow losses in the converter and thus especially at a low speed ratio Increase the door torque and the converter efficiency.
Abbildung 1 zeigt die Schaltung eines mehrstufigen Automatikgetriebes (15) mit Überbrückungskupplung (14) und Föttinger-Wandler mit Injektor.Figure 1 shows the circuit of a multi-stage automatic transmission (15) with lock-up clutch (14) and Föttinger converter with injector.
Der Föttinger-Wandler ist nach dem bekannten Prinzip aufgebaut. Das Pumpenrad (1)wird von der Abtriebsachse (2)der Kraftmaschineangetrieben, das Turbinenrad (3) ist an der Achse zur Arbeitsmaschine (4) befestigt. Das Leitrad (5) umläuft im Freilauf das Gehäuse (6) oder stützts sich daran ab.The Föttinger converter is based on the known principle. That The pump wheel (1) is driven by the output shaft (2) of the engine, the turbine wheel (3) is attached to the axis to the machine (4). The guide wheel (5) rotates in freewheeling the housing (6) or is supported on it.
Als Besonderheit des Föttinger-Wandlers mit Injektor befindet sich eine Vorrichtung (7)zu@ Nutzung des Injektoreffektes zwischen Pumpenauslaß (8) und Turbineneinlaß (9). Im Beispiel ist es ein am Gehäuse (6) fester Träger mit Klappen (10), die den ringförmigen Strom vom Pumpenauslaß zum Turbineneinlaß begrenzen. Die Klappen können z.B. hydraulisch so verstellt werden, daß der ringförmige Auslaß der Pumpe verengt wird.A special feature of the Föttinger converter with injector is a device (7) to @ use the injector effect between the pump outlet (8) and Turbine inlet (9). In the example it is a support with flaps fixed to the housing (6) (10) which limit the annular flow from the pump outlet to the turbine inlet. The flaps can, for example, be adjusted hydraulically so that the annular outlet the pump is narrowed.
Dadurch fungieren die Klappen als Drosseln. Gleichzeitig öffnen sie dann Spalte zu der an ihre Außenseiten anstoßenden Kanälen (11,12).Diese Kanäle (11 ,12)bringen Fluid vom Turbinen- oder Leitradauslaß zurück zum Turbineneinlaß (9).As a result, the flaps act as throttles. At the same time they open then column to the channels adjoining their outer sides (11,12). These channels (11, 12) bring fluid from the turbine or stator outlet back to the turbine inlet (9).
Strömt nun das Fluid mit hoher Geschwindigkeit von der Pumpe in die Turbine, reißt es aus den Kanälen (11,12)Fluid in die Turbine. Damit ist in der Turbine Fluiddurchsatz.und Geschwindigkeit höher als in der Pumpe. Gegenüber herkömmlichen Wandlern sinkt damit der Strömungsverlust der Pumpe, Momentenzahl und Wandlerwirkungsgrad steigen. Bisher wurde nur die Maximierung des Turbinendrehmomentes gekennzeichnet.Now the fluid flows at high speed from the pump into the Turbine, it tears from the channels (11,12) fluid into the turbine. This is in the Turbine fluid throughput. And speed higher than in the Pump. Compared to conventional converters, this reduces the flow loss of the pump and the number of moments and converter efficiency increase. So far only the maximization of the turbine torque has been made marked.
Die injektorartige Vorrichtung kann aber auch anderen Steuerungsmöglichkeiten dienen.The injector-like device can also have other control options to serve.
Will man bei vorgegebener Pumpendrehzahl und vorgegebenem Drehzahlverhältnis das Drehmoment an der Turbine maximieren, ist der Pumpenauslaß ein wenig verengt.If you want to with a given pump speed and a given speed ratio To maximize the torque on the turbine, the pump outlet is narrowed a little.
Drosselt man den Pumpenstrom noch mehr, dann sinkt, da der erzeugbare Druck einer Kreiselpumpe nach oben begrenzt ist, die von der Pumpe an die Turbine abgegebene Leistung. Das Drehmoment an der Turbine sinkt.If the pump current is throttled even more, then the amount that can be generated drops The pressure of a centrifugal pump is limited by the upper limit from the pump to the turbine submitted power. The torque on the turbine drops.
Auf diese Weise ist bei vorgegebenem Drehzahlverhältnis und vorgegebener Pumpendrehzahl das Turbinendrehmoment zwischen einem Maxi malw ert -- der erheblich über dem maximalen Turbinendrehmoment bekannter Wandler liegt - und Null frei wählbar (Patentanspruch 1).In this way, with a given speed ratio and a given one Pump speed, the turbine torque between a maximum value - which is considerable is above the maximum turbine torque of known converters - and zero can be freely selected (Claim 1).
Bei bisher in Automatikgetrieben verwendeten , unverstellbaren Wandlern ist das Turbinendrehmoment nur über die Pumpendrehzahl zu verändern.In the case of non-adjustable converters previously used in automatic transmissions the turbine torque can only be changed via the pump speed.
Ist der Pumpenauslaß (8) durch die Klappen (10) vollständig geschlossen, strömt kein Fluid von der Pumpe zur Turbine. Bei drehender Turbine wirkt diese nun selber als Pumpe und fördert das Fluid - je nachdem, ob eine Zentrifugal- oder Zentr;petalturbine verwendet wird - in gleicher oder entgegengesetzter Strömngsrichtung.If the pump outlet (8) is completely closed by the flaps (10), no fluid flows from the pump to the turbine. This now works when the turbine is rotating itself as a pump and conveys the fluid - depending on whether a centrifugal or centrifugal turbine is used - in the same or opposite direction of flow.
Ist eine Zentripetalturbine vorhanden, dann kann man z.B. an der Außenseite der injektorartigenVorrichtung ( 7) starre Leiträder(13) anbringen.If there is a centripetal turbine, one can e.g. on the outside attach rigid guide wheels (13) to the injector-like device (7).
Das aus der nun als Pumpe genutzten Turbine in diese Leiträder strämende Fluid bremst die Turbine ab, der Wandler wirkt als Bremse (Patentanspruch 3).That from the turbine, which is now used as a pump, pouring into these guide wheels Fluid brakes the turbine, the converter acts as a brake (claim 3).
Das Getriebe steuert man so. Über das Gaspedal legt man das Drehmoment an der Antriebsachse fest. Liegt dieses Drehmoment über dem Volllastdrehmoment der eingelegten Stufe des mechanischen Getriebes öffnet die Überbrückungskupplung und die Beschleunigung erfolgt über den Wandler. Die Steuerung legt Injektorstellung und Motordrehzahl so fest, daß das gewünschte Drehmoment in dem Punkt erreicht wird, in dem das Produkt aus Motorenwirkungsgrad und Wandlerwirkungsgrad maximal wird.The transmission is controlled like that. The torque is applied via the accelerator pedal on the drive axle. If this torque is above the full load torque of the The engaged stage of the mechanical transmission opens the lock-up clutch and the acceleration takes place via the converter. The control sets the injector position and engine speed so fixed that the desired torque is achieved at the point in which the product of engine efficiency and converter efficiency is maximum.
Claims (5)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843414490 DE3414490A1 (en) | 1984-04-17 | 1984-04-17 | Multi-stage automatic transmission with a lock-up clutch and a F omega ttinger torque converter with an injector |
AT85102654T ATE37219T1 (en) | 1984-03-17 | 1985-03-08 | FLUID MACHINE AND METHODS OF CONTROLING THEM. |
EP85102654A EP0158126B1 (en) | 1984-03-17 | 1985-03-08 | Turbo machine and method of controlling it |
DE8585102654T DE3564990D1 (en) | 1984-03-17 | 1985-03-08 | Turbo machine and method of controlling it |
US06/712,199 US4751817A (en) | 1984-03-17 | 1985-03-15 | Fluid machine and a method of controlling the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843414490 DE3414490A1 (en) | 1984-04-17 | 1984-04-17 | Multi-stage automatic transmission with a lock-up clutch and a F omega ttinger torque converter with an injector |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3414490A1 true DE3414490A1 (en) | 1985-10-31 |
Family
ID=6233818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843414490 Withdrawn DE3414490A1 (en) | 1984-03-17 | 1984-04-17 | Multi-stage automatic transmission with a lock-up clutch and a F omega ttinger torque converter with an injector |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3414490A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4444242B4 (en) * | 1993-12-23 | 2004-07-08 | Volkswagen Ag | Coupling arrangement for a motor vehicle |
-
1984
- 1984-04-17 DE DE19843414490 patent/DE3414490A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4444242B4 (en) * | 1993-12-23 | 2004-07-08 | Volkswagen Ag | Coupling arrangement for a motor vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |