DE202005005813U1 - Electronic-hydraulic controller for automatic vehicle gearbox has pressure control valve with rising characteristic controlled by defined current to engage emergency gear(s) in emergency mode, interrupts force transfer in no-current state - Google Patents
Electronic-hydraulic controller for automatic vehicle gearbox has pressure control valve with rising characteristic controlled by defined current to engage emergency gear(s) in emergency mode, interrupts force transfer in no-current state Download PDFInfo
- Publication number
- DE202005005813U1 DE202005005813U1 DE200520005813 DE202005005813U DE202005005813U1 DE 202005005813 U1 DE202005005813 U1 DE 202005005813U1 DE 200520005813 DE200520005813 DE 200520005813 DE 202005005813 U DE202005005813 U DE 202005005813U DE 202005005813 U1 DE202005005813 U1 DE 202005005813U1
- Authority
- DE
- Germany
- Prior art keywords
- emergency
- gear
- control
- pressure control
- control valve
- 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 - Lifetime
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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
- F16H61/02—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
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1204—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures for malfunction caused by simultaneous engagement of different ratios resulting in transmission lock state or tie-up condition
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/122—Avoiding failures by using redundant parts
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1224—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1232—Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
- F16H2061/1264—Hydraulic parts of the controller, e.g. a sticking valve or clogged channel
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
- F16H2061/1268—Electric parts of the controller, e.g. a defect solenoid, wiring or microprocessor
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/1292—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the power supply, e.g. the electric power supply
Abstract
Description
Die Erfindung betrifft eine elektronisch-hydraulische Steuereinrichtung für automatisch schaltende Kraftfahrzeuggetriebe nach dem Oberbegriff des Patentanspruchs 1.The The invention relates to an electronic-hydraulic control device for automatically switching motor vehicle transmission according to the preamble of the claim 1.
Bei elektronisch-hydraulischen Steuerungen für Antriebssysteme von Fahrzeugen mit automatischem Gangwechsel, wie z. B. bei Stufenautomatgetrieben, automatisierten Handschaltgetrieben, Doppelkupplungsgetrieben usw., existiert in der Regel keine Möglichkeit, in Abhängigkeit einer Druckreglerlogik einen Notbetrieb zu aktivieren, um das Fahrzeug bei Ausfall des elektronischen Steuergeräts in einem Notgang weiterbewegen zu können. Aus dem Stand der Technik sind elektronisch-hydraulische Steuerungen für Antriebssysteme von Fahrzeugen mit automatischem Gangwechsel bekannt, welche einen reinen hydraulischen Notbetrieb ermöglichen. In einem solchen hydraulischen Notbetrieb, nehmen Magnetventile oder elektrische Drucksteuerventile im stromlosen Zustand immer eine vorgegebene Stellung ein, bei welcher über entsprechende Ventilkombinationen zugehörige Reibkupplungen oder Bremsen ein- oder ausgerücktwerden, um den Notgang einzulegen. Ein solcher hydraulischer Notbetrieb ermöglicht keinen Diebstahlschutz, bei welchem ein Kraftschluss des Getriebes im stromlosen Zustand verhindert wird, um eine unautorisierte Benutzung des Fahrzeugs zu verhindern.at electronic-hydraulic controls for drive systems of vehicles with automatic gear change, such. B. in stepped automatic transmissions, automated manual transmissions, dual-clutch transmissions etc., there is usually no possibility dependent on a pressure controller logic to activate an emergency operation to the vehicle in case of failure of the electronic control unit in an emergency move on can. From the state of the art are electronic-hydraulic controls for drive systems of vehicles with automatic gear change known which a enable pure hydraulic emergency operation. In such a hydraulic Emergency operation, take solenoid valves or electric pressure control valves in de-energized state always a predetermined position, in which over corresponding Associated valve combinations Friction clutches or brakes on or off to engage the emergency gear. One such hydraulic emergency operation does not allow theft protection, in which a traction of the transmission in the de-energized state prevents unauthorized use of the vehicle to prevent.
In
der Patentschrift
Der Erfindung liegt die Aufgabe zugrunde, eine elektronischhydraulische Steuereinrichtung für automatisch schaltende Kraftfahrzeuggetriebe mit einem Notbetrieb anzugeben, vorzugsweise für Sechsganggetriebe, welche im stromlosen Zustand den Kraftfluss zwischen einer Antriebswelle und einer Abtriebswelle unterbricht.Of the Invention is based on the object, an electronic hydraulic Control device for automatically switching motor vehicle transmission with an emergency operation indicate, preferably for Six-speed gearbox, which in the de-energized state, the power flow between a drive shaft and an output shaft interrupts.
Die Erfindung löst diese Aufgabe durch Bereitstellung einer elektronisch-hydraulischen Steuereinrichtung für automatisch schaltende Kraftfahrzeuggetriebe mit den Merkmalen des Patentanspruchs 1.The Invention solves this task by providing an electronic-hydraulic Control device for automatically switching motor vehicle transmission with the features of Patent claim 1.
Vorteilhafte Ausführungsformen und Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.advantageous embodiments and further developments of the invention are specified in the dependent claims.
Erfindungsgemäß umfasst die elektronisch-hydraulische Steuereinrichtung für automatisch schaltende Kraftfahrzeuggetriebe mindestens ein elektrisch betätigbares Drucksteuerventil mit einer steigenden Steuerkennlinie, welches zum Einlegen einer Notgangstufe im Notbetrieb mit einem vorgebbaren Steuerstrom ansteuerbar ist, wobei im stromlosen Zustand der Kraftschluss des Kraftfahrzeuggetriebes unterbrochen ist. Die erfindungsgemäße Steuereinrichtung stellt in vorteilhafter Weise einen elektrisch simulierten hydraulischen Notbetrieb sicher, so dass das Fahrzeug in Vorwärts- und Rückwärtsrichtung bewegt werden kann und die Fahrzeugverfügbarkeit im Fehlerfall deutlich erhöht werden kann, wobei zusätzlich die Anforderung des Diebstahlschutzes erfüllt wird, dass im stromlosen Zustand kein Kraftschluss zwischen einer Antriebswelle und einer Abtriebswelle vorhanden ist.According to the invention the electronic-hydraulic control device for automatic switching motor vehicle transmission at least one electrically actuated Pressure control valve with a rising control characteristic, which for inserting an emergency gear in emergency mode with a predefinable Control current is controlled, wherein in the de-energized state of adhesion of the motor vehicle transmission is interrupted. The control device according to the invention provides advantageously an electrically simulated hydraulic emergency operation safe so that the vehicle can be moved in the forward and reverse directions and vehicle availability significantly increased in case of error can be, in addition the requirement of theft protection is met, that in the de-energized Condition no adhesion between a drive shaft and a Output shaft is present.
Durch den Wegfall des reinen hydraulischen Notbetriebs im stromlosen Zustand ergeben sich auch Auswirkungen für andere spezielle Fehlerfälle, z. B. für einen Ausfall des Fahrtrichtungssensors. In vorteilhafter Weise simuliert die erfindungsgemäße Steuereinrichtung auch bei diesen Fehlerfällen den hydraulischen Notbetrieb über die elektrische Ansteuerung des mindestens einen Drucksteuerventils mit steigender Steuerkennlinie, so dass das Fahrzeug in Vorwärts- und Rückwärtsrichtung bewegt werden kann.By the elimination of pure hydraulic emergency operation in the de-energized state there are also consequences for other special errors, z. For example a failure of the direction of travel sensor. In an advantageous way simulates the control device according to the invention even with these errors the hydraulic emergency operation over the electrical control of the at least one pressure control valve with increasing control characteristic, so that the vehicle in forward and reverse direction can be moved.
Durch die erfindungsgemäße Steuereinrichtung bleibt im Gegensatz zu einem reinen hydraulischen Notbetrieb eine Wandlerregelung aktiv, so dass in vorteilhafter Weise ein geringerer Wärmeeintrag ins Getriebe entsteht. Außerdem ist während des Notbetriebs jederzeit eine Rückkehr in den Normalbetrieb möglich, wenn beispielsweise temporäre Fehler auftreten.By the control device according to the invention remains in contrast to a pure hydraulic emergency operation one Converter control active, so that advantageously a lesser heat input into the transmission arises. Furthermore is during the emergency operation at any time a return into normal operation possible if for example, temporary Errors occur.
In Ausgestaltung der erfindungsgemäßen Steuereinrichtung ist das mindestens eine Drucksteuerventil mit ansteigender Steuerkennlinie bei einem Ausfall der elektronischen Steuereinheit und bei einer berechtigten Benutzung über entsprechende elektrische Schaltungsmaßnahmen mit dem vorgegebenen Steuerstrom ansteuerbar, so dass der hydraulische Notbetrieb elektrisch simulierbar ist.In Embodiment of the control device according to the invention this is at least one pressure control valve with increasing control characteristic in case of failure of the electronic control unit and at a authorized use over corresponding electrical circuit measures with the specified Control current can be controlled, so that the hydraulic emergency operation electrically is simulated.
In weiterer Ausgestaltung schaltet die erfindungsgemäße Steuereinrichtung im Notbetrieb über mindestens ein stromlos geschaltetes Drucksteuerventil und das mindestens eine Drucksteuerventil mit steigender Steuerkennlinie bei einem zuvor eingelegten niedrigen Gang automatisch in eine niedrige Notgangstufe, vorzugsweise in einen dritten Gang, und bei einem zuvor eingelegten höheren Gang automatisch in eine höhere Notgangstufe, vorzugsweise in einen fünften Gang. Dadurch werden in vorteilhafter Weise große Gangsprünge zwischen dem zuvor betriebenen Gang und der Notgangstufe vermieden, so dass eine thermische Belastung der Reibkupplung bzw. Bremse zum Einlegen des Notgangs verhindern werden kann.In Further embodiment switches the control device according to the invention in emergency mode at least one normally closed pressure control valve and the at least a pressure control valve with increasing control characteristic at a previously engaged low gear automatically in a low emergency gear, preferably in a third gear, and in a previously inserted higher gear automatically in a higher Emergency gear, preferably in a fifth gear. This will be advantageously large gear steps avoided between the previously operated gear and the emergency gear, so that a thermal load on the friction clutch or brake for Insertion of the emergency can be prevented.
Da im Notbetrieb während der Fahrt nicht mehr geschaltet werden kann, wird bei einer eingelegten höheren Notgangstufe in die niedrigere Notgangstufe umgeschaltet, wenn das Fahrzeug, beispielsweise bei einem Abbremsvorgang oder einem Stillstand, eine vorgegebene Geschwindigkeitsschwelle erreicht und/oder unterschreitet. Dadurch wird in vorteilhafter Weise ein erneutes Anfahren des Fahrzeugs ermöglicht.There during emergency operation during the trip can not be switched, is at an inserted higher emergency gear switched to the lower emergency gear, when the vehicle, for example, during a deceleration or a standstill, a reached predetermined speed threshold and / or falls below. As a result, a restart of the vehicle is advantageously allows.
In weiterer Ausgestaltung der erfindungsgemäßen Steuereinrichtung gibt im Notbetrieb das mindestens eine Drucksteuerventil mit steigender Steuerkennlinie einen Kraftschluss über den eingelegten Notgang vor, um eine Vorwärtsbewegung und eine Rückwärtsbewegung des Fahrzeugs zu ermöglichen, während die Bewegungsrichtung durch die Hydraulik vorgebbar ist.In further embodiment of the control device according to the invention in emergency operation, the at least one pressure control valve with increasing Control characteristic a frictional connection on the inserted emergency, about a forward movement and a backward movement to allow the vehicle while the direction of movement can be predetermined by the hydraulic system.
In Abhängigkeit von der vorherigen Gangstufe legen im Notbetrieb ein erstes Drucksteuerventil mit steigender Steuerkennlinie und ein zweites Drucksteuerventil mit steigender Steuerkennlinie, welche mit dem maximalen Steuerstrom angesteuert werden, die niedrige Notgangstufe oder die höhere Notgangstufe ein.In dependence from the previous gear set put in emergency operation, a first pressure control valve with increasing control characteristic and a second pressure control valve with increasing control characteristic, which with the maximum control current be controlled, the low emergency gear or the higher emergency gear one.
Eine vorteilhafte Ausführungsform der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben.A advantageous embodiment The invention is illustrated in the drawing and will be described below.
Die einzige Figur zeigt ein vereinfacht dargestelltes Steuerschema für ein Ausführungsbeispiel einer erfindungsgemäßen Steuereinrichtung mit Diebstahlschutz im elektrisch simulierten hydraulischen Notbetrieb.The single figure shows a simplified illustrated control scheme for an embodiment a control device according to the invention with theft protection in electrically simulated hydraulic emergency operation.
Wie
aus der Figur ersichtlich ist, wird die dargestellte Steuereinrichtung
Tabelle 1 Table 1
Tabelle
2 zeigt den Zustand des von einer Steuereinheit
Tabelle 2 Table 2
Tabelle
3 zeigt die Schaltstellung des Magnetventils
Tabelle 3 Table 3
Wie
aus der Figur weiter ersichtlich ist, umfasst die Steuereinrichtung
Ist
beispielsweise der erste Gang eingelegt, dann steuert die elektronische
Steuereinheit
Tritt
nun in den niedrigen Gängen
Tritt
der Fehler in der Steuereinheit
Wird
das Fahrzeug während
des Betriebs im höheren
Notgang bis zum Stillstand abgebremst, dann kann es unter ungünstigen
Bedingungen möglich
sein, dass im höheren
Notgang zu wenig Drehmoment zum Anfahren erzeugt wird. Daher wird
im Notbetrieb vom höheren
Notgang in den niedrigen Notgang umgeschaltet, wenn das Fahrzeug
während
des Betriebs im höheren
Notgang eine vorgegebene Geschwindigkeitsschwelle erreicht oder
unterschreitet. Das Umschalten kann beispielsweise dadurch erreicht
werden, dass das Magnetventil
Der
Kraftschluss zwischen der Antriebswelle und der Abtriebswelle wird
ebenfalls unterbrochen, wenn das Diebstahlschutzsystem eine unberechtigte
Benutzung anzeigt. Die Unterbrechung des Kraftschlusses für den Diebstahlschutz
wird dadurch umgesetzt, dass das Magnetventil
- 11
- Steuereinrichtungcontrol device
- 22
- elektronische Steuereinheitelectronic control unit
- 33
- Pumpepump
- 44
- SystemdruckventilSystem pressure valve
- 55
- Wählschieberselector slide
- 66
- elektrisches Drucksteuerventilelectrical Pressure control valve
- 77
- elektrisches Drucksteuerventilelectrical Pressure control valve
- 88th
- elektrisches Drucksteuerventilelectrical Pressure control valve
- 99
- elektrisches Drucksteuerventilelectrical Pressure control valve
- 1010
- elektrisches Drucksteuerventilelectrical Pressure control valve
- 1111
- elektrisches Drucksteuerventilelectrical Pressure control valve
- 1212
- Magnetventilmagnetic valve
- 1313
- Kanalchannel
- 1414
- Wählhebelselector lever
- 1515
- Schaltventilswitching valve
- 1616
- Kanalchannel
- 1717
- Kanalchannel
- 1818
- NotfahrventilNotfahrventil
- 1919
- Schaltventilswitching valve
- 2020
- Steuerventilcontrol valve
- 2121
- Steuerventilcontrol valve
- 2222
- Kanalchannel
- 2323
- Steuerventilcontrol valve
- 2424
- VentilValve
- 2525
- Kanalchannel
- 2626
- Kanalchannel
- 2727
- Kanalchannel
- 2828
- Kanalchannel
- 2929
- Steuerventilcontrol valve
- 3030
- Steuerventilcontrol valve
- AA
- Reibkupplungfriction clutch
- BB
- Reibkupplungfriction clutch
- CC
- Bremsebrake
- DD
- Bremsebrake
- Ee
- Reibkupplungfriction clutch
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200520005813 DE202005005813U1 (en) | 2005-04-12 | 2005-04-12 | Electronic-hydraulic controller for automatic vehicle gearbox has pressure control valve with rising characteristic controlled by defined current to engage emergency gear(s) in emergency mode, interrupts force transfer in no-current state |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200520005813 DE202005005813U1 (en) | 2005-04-12 | 2005-04-12 | Electronic-hydraulic controller for automatic vehicle gearbox has pressure control valve with rising characteristic controlled by defined current to engage emergency gear(s) in emergency mode, interrupts force transfer in no-current state |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202005005813U1 true DE202005005813U1 (en) | 2005-06-23 |
Family
ID=34707120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200520005813 Expired - Lifetime DE202005005813U1 (en) | 2005-04-12 | 2005-04-12 | Electronic-hydraulic controller for automatic vehicle gearbox has pressure control valve with rising characteristic controlled by defined current to engage emergency gear(s) in emergency mode, interrupts force transfer in no-current state |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202005005813U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006028255A1 (en) * | 2006-06-20 | 2007-12-27 | Zf Friedrichshafen Ag | Automatic transmission emergency program for motor vehicle, has instructions for making circuit by manual interference if low emergency gear is switched, and for releasing into high emergency gear by manual operation of position lever |
DE102016203573A1 (en) * | 2016-03-04 | 2017-06-08 | Zf Friedrichshafen Ag | Method and control device for operating a transmission |
-
2005
- 2005-04-12 DE DE200520005813 patent/DE202005005813U1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006028255A1 (en) * | 2006-06-20 | 2007-12-27 | Zf Friedrichshafen Ag | Automatic transmission emergency program for motor vehicle, has instructions for making circuit by manual interference if low emergency gear is switched, and for releasing into high emergency gear by manual operation of position lever |
DE102016203573A1 (en) * | 2016-03-04 | 2017-06-08 | Zf Friedrichshafen Ag | Method and control device for operating a transmission |
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Effective date: 20050728 |
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Effective date: 20080430 |
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Effective date: 20110420 |
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Effective date: 20130522 |
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