DE10238104A1 - Controlling emergency switching program for automatic gearbox with start-up clutch involves controlling emergency switching program depending on signal dependent on vehicle and/or engine speed - Google Patents
Controlling emergency switching program for automatic gearbox with start-up clutch involves controlling emergency switching program depending on signal dependent on vehicle and/or engine speed Download PDFInfo
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- DE10238104A1 DE10238104A1 DE10238104A DE10238104A DE10238104A1 DE 10238104 A1 DE10238104 A1 DE 10238104A1 DE 10238104 A DE10238104 A DE 10238104A DE 10238104 A DE10238104 A DE 10238104A DE 10238104 A1 DE10238104 A1 DE 10238104A1
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- engine speed
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- vehicle
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- 230000001419 dependent effect Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000001960 triggered effect Effects 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 description 1
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
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/066—Control of fluid pressure, e.g. using an accumulator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18027—Drive off, accelerating from standstill
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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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
- B60W2510/107—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
- B60W2710/023—Clutch engagement rate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
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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
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/102—Actuator
- F16D2500/1026—Hydraulic
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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
- F16H61/12—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
- F16H2061/1256—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
-
- 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
- F16H2312/00—Driving activities
- F16H2312/02—Driving off
-
- 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
- F16H2312/00—Driving activities
- F16H2312/16—Coming to a halt
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Ansteuern eines Notschaltprogramms für ein Automatgetriebe mit einer Anfahrkupplung, gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a method for controlling an emergency shift program for an automatic transmission with a starting clutch, according to the preamble of claim 1.
Nach dem Stand der Technik weisen Lastschaltgetriebe üblicherweise einen hydrodynamischen Wandler als Anfahreinrichtung auf. Hydrodynamische Wandler beanspruchen jedoch verhältnismäßig viel Bauraum und haben einen Leistungsverlust, der beispielsweise durch Strömungsverluste verursacht wird. Bei Lastschaltgetrieben mit hydrodynamischem Wandler ist auch bekannt, dass beim Ausfall des elektronischen Steuergerätes das Anhalten und Anfahren über den Wandler erfolgt, wobei der Kraftschluß im Getriebe durch ein rein hydraulisches Betätigen der relevanten Kupplungen und Bremsen, die sich im Kraftfluß befinden müssen, hergestellt wird.According to the state of the art Powershift gearbox usually a hydrodynamic converter as a starting device. Hydrodynamic However, converters are relatively demanding Space and have a loss of performance, for example, by Flow losses caused becomes. With powershift transmissions with hydrodynamic converter is also known that the failure of the electronic control unit Stop and start over the converter takes place, the adhesion in the transmission by a pure hydraulic actuation the relevant clutches and brakes that are in the power flow have to, will be produced.
Um die Getriebelänge zu verkürzen und Leistungsverluste zu vermeiden, ist nach dem Stand der Technik vorgeschlagen worden, auf einen hydrodynamischen Wandler als Anfahreinrichtung zu verzichten. Gemäß diesem Konzept wird die Anfahrelementfunktion von einer Getriebekupplung bzw. Bremse übernommen.To shorten the transmission length and loss of performance to avoid, has been proposed in the prior art to dispense with a hydrodynamic converter as a starting device. According to this The concept is the starting element function of a gearbox clutch or brake applied.
Für ein Getriebe mit einer Anfahrkupplung kann bei Anwendung des gleichen Notfahrkonzeptes, wie es für Getriebe mit einem Wandler eingesetzt wird, nur eine stark eingeschränkte Verfügbarkeit gewährleistet werden. Wenn der Not lauf während der Vorwärtsfahrt auftritt, dann kann in einen geeigneten Notgang geschaltet werden, wodurch eine Weiterfahrt ermöglicht wird. Wenn jedoch der Notlauf bei Stillstand des Fahrzeugs auftritt oder wenn das Fahrzeug im Notlauf auf eine Geschwindigkeit v, die geringer als eine Schwellengeschwindigkeit v_Schwelle ist, abgebremst wird, dann wird der Motor „abgewürgt"; in einer derartigen Situation ist ein Anfahren nicht mehr möglich.For a gearbox with a starting clutch can be used with the same Emergency driving concept as it is for Gearbox used with a converter, only a very limited availability guaranteed become. If the emergency runs during the forward drive occurs, then you can switch to a suitable emergency room, which enables a further journey becomes. However, if the limp-home mode occurs when the vehicle is stationary or when the vehicle is running at a speed v that is lower than a threshold speed v_Schwelle, braked the engine is "stalled"; in In such a situation, starting is no longer possible.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Ansteuern eines Notschaltprogramms für ein Automatgetriebe mit einer Anfahrkupplung anzugeben, welches die Nachteile des Standes der Technik vermeidet.The present invention lies the task is based on a method for controlling an emergency switching program for a Specify automatic transmission with a starting clutch, which the Avoids disadvantages of the prior art.
Insbesondere soll ein Notlauf auch bei Stillstand des Fahrzeugs ermöglicht werden; zudem soll der Fahrzeugmotor im Schubbetrieb nicht unter eine Drehzahlschwelle fallen, ab der ein Hochlaufen des Motors nicht mehr möglich ist.In particular, an emergency run should also enabled when the vehicle is stationary become; in addition, the vehicle engine should not be under in overrun a speed threshold fall below which the engine does not start up more is possible is.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere Varianten und Vorteile gehen aus den Unteransprüchen hervor.This task is due to the characteristics of claim 1 solved. Further variants and advantages emerge from the subclaims.
Demnach wird vorgeschlagen, das Notschaltprogramm über ein von der Fahrzeuggeschwindigkeit (z. B. Abtriebsdrehzahl) und/oder der Motordrehzahl abhängiges Signal anzusteuern. Insbesondere wird über das von der Fahrzeuggeschwindigkeit und/oder der Motordrehzahl abhängiges Signal die Anfahrkupplung im Rahmen des Notbetriebs angesteuert.Accordingly, it is proposed to use the emergency switching program the vehicle speed (e.g. output speed) and / or dependent on the engine speed Control signal. In particular, it is based on the vehicle speed and / or the engine speed dependent Signal the starting clutch activated in the context of emergency operation.
Zu diesem Zweck wird ein von der Fahrzeuggeschwindigkeit und/oder Motordrehzahl abhängiges Signal erzeugt, welches über eine Ventillogik verarbeitbar ist und welches bewirkt, dass im Schubbetrieb der Kraftschluss vom Antrieb zum Motor rechtzeitig unterbrochen wird, um den Fahrzeugmotor im Schubbetrieb nicht unter eine Drehzahlschwelle zu ziehen, ab der der Motor nicht mehr hochlaufen kann.For this purpose one of the Vehicle speed and / or engine speed dependent signal generated which over a valve logic can be processed and which causes that in overrun mode the frictional connection from the drive to the motor is interrupted in good time is to keep the vehicle engine in overrun not below a speed threshold pull from which the engine can no longer start.
Auf diese Weise werden die Getriebekupplungen bzw. Bremsen im Notprogramm so geschaltet, dass der Motor mit Leerlaufdrehzahl drehen kann, während der Abtrieb steht.In this way, the gear clutches or brakes in the emergency program so that the engine runs at idle speed can rotate while the output is stopped.
Erfindungsgemäß ist vorgesehen, dass beim Anfahren die hydraulische Getriebesteuerung entsprechend dem Fahrerwunsch ein Signal erhält, um anschließend den Kraftschluss wieder herzustellen. Dieses Signal wird in Abhängigkeit von der Getriebeeingangsdrehzahl und damit auch der Motordrehzahl erzeugt und steuert direkt, oder in gewandelter Form ein oder mehrere Ventile in der Hydrauliksteuerung an, so dass ein gezieltes Schließen der Anfahrkupplung, vorzugsweise rampenförmig, ausgelöst wird, während für den Notgang ein weiteres Schaltelement geschaltet ist. Auf diese Weise kann das Fahrzeug im Notanfahrgang weiter bewegt werden, wobei ein Schalten in einen höheren Gang nicht vorgesehen ist; ein Anhalten und Anfahren ist erneut möglich, wie bereits beschrieben.According to the invention it is provided that when starting the hydraulic transmission control according to the driver's request receives a signal to then to restore the adhesion. This signal becomes dependent generated by the transmission input speed and thus also the engine speed and controls one or more valves directly or in a modified form in the hydraulic control, so that a targeted closing of the Starting clutch, preferably ramp-shaped, is triggered while for the emergency gear another switching element is switched. That way the vehicle can be moved further in the emergency starting gear, with a shift in a higher one Gear is not provided; stopping and starting is again possible, as already described.
Die Umsetzung der Motordrehzahl in ein hydraulisches Signal kann gemäß einer Variante der Erfindung über die Leckagesteuerung zur Ermittlung der Pumpenförderleistung erfolgen. Hierbei wird davon ausgegangen, dass ein Ventil, welches sich hinter einer Leckagestelle befindet, erst dann genügend Öldruck erhält, wenn das Pumpenvolumen ausreicht, um alle Leckagen auszugleichen. Die Leckagen können entweder gezielt erzeugt werden, oder es können die vorhandenen, systembedingten Leckagen genutzt werden.Implementation of the engine speed in According to a variant of the invention, a hydraulic signal can be transmitted via the Leakage control to determine the pump delivery rate. in this connection it is assumed that a valve, which is behind a Leakage point, only receives sufficient oil pressure when the pump volume sufficient to compensate for all leaks. The leaks can either can be generated specifically, or the existing, system-related Leaks can be used.
Im Rahmen einer vorteilhaften Variante kann der Sekundärdruck am Systemdruckventil als Signalquelle genutzt werden, wie im folgenden erklärt wird, wobei in diesem Fall die dadurch gewonnenen Signale von der Ölviskosität und folglich von der Öltemperatur abhängig sind. Das Systemdruckventil ist nach dem Stand der Technik als mehrstufiges Druckbegrenzungsventil ausgebildet, das in der ersten Stufe den zur Verfügung stehenden Volumenstrom auf den primären Hauptdruck verteilt, beispielsweise auf Schaltelemente und Druckregler. Nach einer Sättigung des Volumenbedarfs in der ersten Stufe steigt der Hauptdruck an, so dass das Systemdruckventil die sekundäre Steuerkante öffnet und auf diese Weise diesen Bereich mit Öl versorgt. Der sekundäre Hauptdruck (Sekundärdruck) ist in zwei Sektionen unterteilt, so dass eine direkte Abhängigkeit zwischen Pumpenförderleistung und Leckagemenge in den verschiedenen Systemdruckbereichen vorliegt.As part of an advantageous variant, the secondary pressure at the system pressure valve can be used as a signal source, as will be explained below, in which case the signals obtained in this way depend on the oil viscosity and consequently on the oil temperature. According to the prior art, the system pressure valve is designed as a multi-stage pressure relief valve which, in the first stage, distributes the available volume flow to the primary main pressure, for example to switching elements and pressure regulators. After the volume requirement in the first stage is saturated, the main pressure rises, so that the system pressure valve opens the secondary control edge and in this way supplies this area with oil. The secondary main pressure (secondary pressure) is in two sections divided so that there is a direct dependency between the pump delivery rate and leakage quantity in the different system pressure ranges.
Gemäß der Erfindung wird bei einer Antriebsdrehzahl zwischen ca. 500 und 1 500 Umdrehungen pro Minute über die beginnende Sättigung eines der Systemdrücke, die Kupplung gesteuert zugeschalten. Um den Einfluss der Ölviskosität zu reduzieren, ist gemäß einer vorteilhaften Weiterbildung vorgesehen, beim Umschalten eine Bimetallblende zu verwenden.According to the invention, one Drive speed between approx. 500 and 1 500 revolutions per minute over the beginning saturation one of the system pressures, the clutch is switched on in a controlled manner. To reduce the influence of the oil viscosity, is according to one advantageous development provided to switch a bimetallic aperture use.
Eine weitere Möglichkeit der Umsetzung der Motordrehzahl in ein hydraulisches Signal besteht darin, ein Pitotrohr an der Getriebeeingangswelle anzuordnen, wobei die Ölviskosität einen Einfluss auf das gelieferte Signal hat.Another way of implementing the engine speed in a hydraulic signal is a pitot tube at the To arrange the transmission input shaft, the oil viscosity influencing the delivered Signal.
Des weiteren kann zur Umsetzung der Motordrehzahl in ein hydraulisches Signal an der Getriebeeingangswelle ein Fliehkraftregler oder Fliehkraftschalter vorgesehen sein, wobei eine große Hysterese bezüglich der Schaltpunkte insbesondere für den Ein- und Auskuppelvorgang von Vorteil ist.Furthermore, to implement the Engine speed in a hydraulic signal on the transmission input shaft a centrifugal governor or centrifugal switch may be provided, wherein a big Hysteresis regarding the switching points especially for the engagement and disengagement process is advantageous.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10238104A DE10238104A1 (en) | 2002-08-21 | 2002-08-21 | Controlling emergency switching program for automatic gearbox with start-up clutch involves controlling emergency switching program depending on signal dependent on vehicle and/or engine speed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10238104A DE10238104A1 (en) | 2002-08-21 | 2002-08-21 | Controlling emergency switching program for automatic gearbox with start-up clutch involves controlling emergency switching program depending on signal dependent on vehicle and/or engine speed |
Publications (1)
Publication Number | Publication Date |
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DE10238104A1 true DE10238104A1 (en) | 2004-03-04 |
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ID=31197131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE10238104A Withdrawn DE10238104A1 (en) | 2002-08-21 | 2002-08-21 | Controlling emergency switching program for automatic gearbox with start-up clutch involves controlling emergency switching program depending on signal dependent on vehicle and/or engine speed |
Country Status (1)
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DE (1) | DE10238104A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004018962B3 (en) * | 2004-04-14 | 2005-10-06 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Hydraulic circuit and method for controlling the same |
WO2005106291A2 (en) | 2004-04-27 | 2005-11-10 | Zf Friedrichshafen Ag | Control valve arrangement for controlling a start clutch of an automatic gearbox |
DE102005001505A1 (en) * | 2005-01-13 | 2006-11-16 | Zf Friedrichshafen Ag | Method for controlling a manual transmission in case of unscheduled engine behavior |
DE102005050494A1 (en) * | 2005-10-21 | 2007-04-26 | Zf Friedrichshafen Ag | Valve arrangement for control of starting clutch of automatic transmission unit, comprises self-holding valve transmitting activating pressure in relation to engine dependant control pressure to activating valve |
WO2007045401A1 (en) * | 2005-10-21 | 2007-04-26 | Zf Friedrichshafen Ag | Control valve assembly for controlling a starting clutch of an automatic transmission |
DE102005050489A1 (en) * | 2005-10-21 | 2007-04-26 | Zf Friedrichshafen Ag | Control valve arrangement for controlling a starting clutch of an automatic transmission |
DE102021208816A1 (en) | 2021-08-12 | 2023-02-16 | Zf Friedrichshafen Ag | Actuation of a converter lock-up clutch of a hydrodynamic torque converter using a safety function |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19943939A1 (en) * | 1999-09-14 | 2001-03-15 | Volkswagen Ag | Emergency control for a motor vehicle |
DE19954605A1 (en) * | 1999-11-12 | 2001-07-19 | Volkswagen Ag | Method for controlling an automatic transmission for a motor vehicle |
-
2002
- 2002-08-21 DE DE10238104A patent/DE10238104A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19943939A1 (en) * | 1999-09-14 | 2001-03-15 | Volkswagen Ag | Emergency control for a motor vehicle |
DE19954605A1 (en) * | 1999-11-12 | 2001-07-19 | Volkswagen Ag | Method for controlling an automatic transmission for a motor vehicle |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004018962B3 (en) * | 2004-04-14 | 2005-10-06 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Hydraulic circuit and method for controlling the same |
WO2005103531A1 (en) | 2004-04-14 | 2005-11-03 | Getrag Getriebe- Und Zahnradfabrik | Hydraulic circuit and method for controlling said circuit |
US7338408B2 (en) | 2004-04-14 | 2008-03-04 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Ag | Hydraulic circuit and method for controlling said circuit |
WO2005106291A2 (en) | 2004-04-27 | 2005-11-10 | Zf Friedrichshafen Ag | Control valve arrangement for controlling a start clutch of an automatic gearbox |
WO2005106291A3 (en) * | 2004-04-27 | 2006-03-30 | Zahnradfabrik Friedrichshafen | Control valve arrangement for controlling a start clutch of an automatic gearbox |
US7736270B2 (en) | 2004-04-27 | 2010-06-15 | Zf Friedrichshafen Ag | Control valve arrangement for controlling a start clutch of an automatic gearbox |
DE102005001505A1 (en) * | 2005-01-13 | 2006-11-16 | Zf Friedrichshafen Ag | Method for controlling a manual transmission in case of unscheduled engine behavior |
US7699750B2 (en) | 2005-01-13 | 2010-04-20 | Zf Friedrichshafen Ag | Method for controlling a manual transmission in the event of a disorderly engine behavior |
DE102005050489A1 (en) * | 2005-10-21 | 2007-04-26 | Zf Friedrichshafen Ag | Control valve arrangement for controlling a starting clutch of an automatic transmission |
DE102005050493A1 (en) * | 2005-10-21 | 2007-04-26 | Zf Friedrichshafen Ag | Control valve arrangement for controlling a starting clutch of an automatic transmission |
WO2007045401A1 (en) * | 2005-10-21 | 2007-04-26 | Zf Friedrichshafen Ag | Control valve assembly for controlling a starting clutch of an automatic transmission |
DE102005050494A1 (en) * | 2005-10-21 | 2007-04-26 | Zf Friedrichshafen Ag | Valve arrangement for control of starting clutch of automatic transmission unit, comprises self-holding valve transmitting activating pressure in relation to engine dependant control pressure to activating valve |
US7771317B2 (en) | 2005-10-21 | 2010-08-10 | Zf Friedrichshafen Ag | Control valve assembly for controlling a starting clutch of an automatic transmission |
US7780572B2 (en) | 2005-10-21 | 2010-08-24 | Zf Friedrichshafen Ag | Control valve arrangement for controlling a starting clutch of an automatic transmission |
CN101292103B (en) * | 2005-10-21 | 2013-05-29 | Zf腓德烈斯哈芬股份公司 | Control valve assembly for controlling a starting clutch of an automatic transmission |
DE102021208816A1 (en) | 2021-08-12 | 2023-02-16 | Zf Friedrichshafen Ag | Actuation of a converter lock-up clutch of a hydrodynamic torque converter using a safety function |
US12000477B2 (en) | 2021-08-12 | 2024-06-04 | Zf Friedrichshafen Ag | Actuation of a converter lock-up clutch of a hydrodynamic torque converter by means of a safety function |
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