DE4322523A1 - Control device for a motor vehicle automatic transmission - Google Patents

Control device for a motor vehicle automatic transmission

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Publication number
DE4322523A1
DE4322523A1 DE19934322523 DE4322523A DE4322523A1 DE 4322523 A1 DE4322523 A1 DE 4322523A1 DE 19934322523 DE19934322523 DE 19934322523 DE 4322523 A DE4322523 A DE 4322523A DE 4322523 A1 DE4322523 A1 DE 4322523A1
Authority
DE
Germany
Prior art keywords
control device
electro
parking lock
hydraulic control
operating
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Withdrawn
Application number
DE19934322523
Other languages
German (de)
Inventor
Josef Neuner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE19934322523 priority Critical patent/DE4322523A1/en
Publication of DE4322523A1 publication Critical patent/DE4322523A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/34Locking or disabling mechanisms
    • F16H63/3416Parking lock mechanisms or brakes in the transmission
    • F16H63/3483Parking lock mechanisms or brakes in the transmission with hydraulic actuating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02Selector apparatus
    • F16H59/08Range selector apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F16H63/48Signals to a parking brake or parking lock; Control of parking locks or brakes being part of the transmission
    • F16H63/483Circuits for controlling engagement of parking locks or brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/02Control 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
    • F16H61/0202Control 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
    • F16H61/0251Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
    • F16H2061/026On-off solenoid valve

Abstract

An electro-hydraulic control device for a motor vehicle automatic transmission is proposed, which is designed so that it functions reliably in all operating stages. This is achieved in that the operating stages D, R and N are selected by pressure actuation of individual gearshift elements (2, 3, 12), whilst the operating stage P is selected by depressurising all gearshift elements (2, 3, 12). It is furthermore proposed that in changing over between the operating stages D, R and N two solenoid valves (7, 8, 9) be switched in each case. In addition, the selector device (15) is coupled to the parking position (1) by a second control device so that engagement of the parking position (1) is prevented when the operating stage P is not selected on the selector device (15). <IMAGE>

Description

Die Erfindung betrifft eine elektro-hydraulische Steuer­ einrichtung für ein Kraftfahrzeug-Automatikgetriebe nach dem Oberbegriff des Hauptanspruchs.The invention relates to an electro-hydraulic control device for a motor vehicle automatic transmission after the preamble of the main claim.

Es ist bekannt, daß der Fahrer eines Kraftfahrzeugs mit Automatikgetriebe über einen Wählhebel verschiedene Be­ triebsstufen, z. B. Vorwärtsfahrt, Rückwärtsfahrt, Neutral- oder Parkstellung, vorwählen kann. Im Automatik­ getriebe werden, je nach eingelegter Betriebsstufe, aus Stellzylindern, Kupplungen und Bremsen bestehende Schalt­ glieder über eine hydraulische Steuerung betätigt. Dazu ist der Wählhebel entweder mechanisch oder elektrisch über Magnetventile so mit hydraulischen Schaltventilen zusammengeschaltet, daß die Schaltglieder einzelne Ge­ triebeelemente entsprechend blockieren oder freigeben.It is known that the driver of a motor vehicle with Automatic transmission via a selector lever various loading drive stages, e.g. B. forward drive, reverse drive, Neutral or park position. In automatic gearboxes are switched off, depending on the selected operating level Actuating cylinders, clutches and brakes existing switching operated by a hydraulic control. To the selector lever is either mechanical or electrical via solenoid valves so with hydraulic switching valves interconnected that the switching elements individual Ge Block or release the drive elements accordingly.

Die DE-OS 41 27 991 beschreibt eine Parksperre für ein Automatikgetriebe, die über eine solche hydraulische Steuereinrichtung betätigt wird. Da das Einlegen der Parksperre auch bei Defekten in der Steuerung gewährlei­ stet sein muß, wird diese durch Federkraft mechanisch eingelegt, wenn der Wählhebel vom Fahrer in die Stellung P gebracht wird. In den anderen Stellungen des Wählhebels wird die Parksperre durch hydraulischen Druck außer Ein­ griff gehalten.DE-OS 41 27 991 describes a parking lock for a Automatic transmission that has such a hydraulic Control device is operated. Since inserting the Ensure parking lock even in the event of defects in the control system must be constant, this becomes mechanical by spring force engaged when the driver selects the selector lever in position P  brought. In the other positions of the selector lever the parking lock is deactivated by hydraulic pressure held.

Über die Steuerung des Automatikgetriebes in den anderen Stellungen des Wählhebels ist in dieser Veröffentlichung nichts offenbart.Via the control of the automatic transmission in the others Positions of the selector lever is in this publication nothing revealed.

Deshalb ist es Aufgabe der Erfindung, eine elektro­ hydraulische Steuereinrichtung für ein Kraftfahrzeug-Au­ tomatikgetriebe so auszubilden, daß sie in allen Be­ triebsstufen zuverlässig arbeitet.Therefore, it is an object of the invention, an electro hydraulic control device for a motor vehicle Au to train the tomato transmission so that it can be used in all drive stages works reliably.

Die Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.The object is achieved with the characteristic Features of claim 1 solved. Other configurations the invention emerge from the subclaims.

Nach der Erfindung ist die elektro-hydraulische Steuer­ einrichtung für ein Automatikgetriebe so gestaltet, daß die Betriebsstufen D, R und N durch Druckbeaufschlagung einzelner Schaltglieder eingelegt werden, während die Be­ triebsstufe P durch Drucklosschaltung aller Schaltglieder eingelegt wird. Das hat den Vorteil, daß durch die hydraulische Steuereinrichtung nicht nur in der Betriebs­ stufe P, sondern in allen Betriebsstufen des Wählhebels bei Druckausfall die Parksperre eingelegt wird.According to the invention, the electro-hydraulic control device for an automatic transmission designed so that operating levels D, R and N by pressurization individual switching elements are inserted while the loading gear stage P by depressurizing all switching elements is inserted. This has the advantage that the hydraulic control device not only in operation level P, but in all operating levels of the selector lever the parking lock is inserted in the event of pressure loss.

In einer vorteilhaften Ausführung der Erfindung werden durch die Wähleinrichtung drei 2/2-Wege-Ventile angesteu­ ert. Zusätzlich ist die Steuerung so ausgebildet, daß bei der Umschaltung zwischen den Betriebsstufen D, R und N jeweils zwei Magnetventile geschaltet werden.In an advantageous embodiment of the invention controlled by the selection device three 2/2-way valves ert. In addition, the control is designed so that at switching between operating levels D, R and N two solenoid valves can be switched.

Bei einer bevorzugten Ausführung der Erfindung sind Wähl­ einrichtung und Parksperre durch eine zweite Steuerein­ richtung so gekoppelt, daß das Einrücken der Parksperre verhindert wird, wenn an der Wähleinrichtung nicht die Betriebsstufe P eingelegt ist.In a preferred embodiment of the invention, dialing is facility and parking lock by a second control unit direction coupled so that the engagement of the parking lock  is prevented if the dialing device does not have the Operating level P is inserted.

So kann vorteilhafterweise während der Vorwärtsfahrt keine Kraftschlußunterbrechung und grundsätzlich kein un­ gewolltes Einlegen der Parksperre stattfinden.So can advantageously during the forward drive no interruption of adhesion and basically no un deliberate insertion of the parking lock take place.

Die zweite Steuereinrichtung zwischen Parksperre und Wähleinrichtung wird konstruktiv einfach und preiswert dadurch verwirklicht, daß sie in einer weiteren vorteil­ haften Ausführung der Erfindung aus einer Wirkverbindung, z. B. einem Bowdenzug, besteht.The second control device between the parking lock and The selection device is structurally simple and inexpensive realized by having another advantage liable implementation of the invention from an active connection, e.g. B. a Bowden cable.

Um das Fahrzeug bei Funktionsausfall der Steuereinrich­ tung und eingelegter Parksperre abschleppen zu können, ist in einer weiteren bevorzugten Ausführung der Er­ findung vorgesehen, daß die Parksperre durch eine vom Fahrer bedienbare Notentriegelung außer Eingriff gebracht werden kann.To control the vehicle in the event of a malfunction towing and inserted parking lock, is the Er in a further preferred embodiment invention provided that the parking lock by one of Driver-operated emergency release disengaged can be.

Eine wiederum konstruktiv einfache und preiswerte Ausfüh­ rung der Notentriegelung ist eine Wirkverbindung, z. B. ein Bowdenzug, zwischen einem vom Fahrer bedienbaren Handhebel und der Parksperre.This, in turn, is structurally simple and inexpensive tion of the emergency release is an active connection, z. B. a Bowden cable between one that can be operated by the driver Hand lever and the parking lock.

Ein bevorzugtes Ausführungsbeispiel der Erfindung be­ schreibt die nachfolgende Beschreibung mit der zugehöri­ gen Zeichnung. Es zeigt:A preferred embodiment of the invention be write the following description with the corresponding drawing. It shows:

Fig. 1 den Schaltplan der elektro-hydraulischen Steuereinrichtung gemäß der Erfindung, Fig. 1 shows the circuit diagram of the electro-hydraulic control device according to the invention,

Fig. 2 eine Schaltmatrix für den Schaltplan aus Fig. 1 und Fig. 2 is a switching matrix for the circuit diagram of Fig. 1 and

Fig. 3 eine Prinzipdarstellung des automatischen Ge­ triebes mit den Verbindungen zu Wähleinrichtung und Notentriegelung. Fig. 3 is a schematic diagram of the automatic gearbox with the connections to the selector and emergency release.

Nach Fig. 1 werden über eine elektro-hydraulische Steuer­ einrichtung eine Parksperre 1 und Schaltglieder für Rück­ wärtsfahrt 2 und Vorwärtsfahrt 3, die in der Zeichnung nur symbolisch dargestellt sind, mit hydraulischem Druck beaufschlagt. Der Schaltkreis enthält ein Schaltventil 4 für die Parksperre 1, ein Schaltventil 5 für das Schalt­ glied für Rückwärtsfahrt 2 und ein Schaltventil 6 für das Schaltglied für Vorwärtsfahrt 3. Gesteuert wird der Schaltkreis durch drei Magnetventile: Ein Magnetventil 7 für die Parksperre 1, ein Magnetventil 8 für das Schalt­ glied für Rückwärtsfahrt 2 und ein Magnetventil 9 für das Schaltglied für Vorwärtsfahrt 3. Bei den Magnetventilen 7, 8, 9 handelt es sich um 2/2-Wege-Ventile, die ein­ gangsseitig mit Drucköl von einer nicht gezeichneten Pumpe versorgt werden. Diese nicht gezeichnete Pumpe ver­ sorgt auch einen Hauptdruckölanschluß 10 des Schalt­ kreises.According to FIG. 1, a parking lock 1 and switching elements for reverse travel 2 and forward travel 3 , which are shown only symbolically in the drawing, are acted upon by hydraulic pressure via an electro-hydraulic control device. The circuit contains a switching valve 4 for the parking lock 1 , a switching valve 5 for the switching element for reverse travel 2 and a switching valve 6 for the switching element for forward driving 3rd The circuit is controlled by three solenoid valves: a solenoid valve 7 for the parking lock 1 , a solenoid valve 8 for the switching element for reverse travel 2 and a solenoid valve 9 for the switching element for forward movement 3 . The solenoid valves 7 , 8 , 9 are 2/2-way valves that are supplied with pressure oil from a pump (not shown) on the inlet side. This pump, not shown, also provides a main pressure oil connection 10 of the switching circuit.

Neben den bereits erwähnten Elementen des Schaltkreises enthält dieser noch ein Doppelrückschlagventil 11, das zwischen die Ausgangsleitungen der Magnetventile 7, 8 für die Parksperre und für Rückwärtsfahrt geschaltet ist. Der Ausgang des Doppelrückschlagventils 11 mit zwei Ein­ gängen, das selbsttätig den jeweils entlüfteten Eingang sperrt, wirkt einseitig auf den Kolben des Schaltventils 6 für das Schaltglied 3 für Vorwärtsfahrt.In addition to the elements of the circuit already mentioned, it also contains a double check valve 11 , which is connected between the output lines of the solenoid valves 7 , 8 for the parking lock and for reverse travel. The output of the double check valve 11 with two inputs, which automatically blocks the vented input, acts on one side on the piston of the switching valve 6 for the switching element 3 for forward travel.

Fig. 2 zeigt die Schaltmatrix des Schaltplans von Fig. 1. Bei eingelegter Parksperre, dem Schaltzustand, der auch in Fig. 1 dargestellt ist, sperren alle drei Magnetven­ tile 7, 8, 9. Der Pumpendruck liegt nur an dem Haupt­ druckölanschluß 10 an. Durch die Stellung der Schaltven­ tile 4, 5, 6 sind alle Ausgänge des Schaltkreises ent­ lüftet und die Zuleitungen zu den Schaltgliedern drucklos geschaltet. Dies betrifft die Schaltglieder für Rück­ wärtsfahrt 2 bzw. Vorwärtsfahrt 3 und die Zuleitung 13 zum Stellzylinder 12 der Parksperre 1. Diese Schalt­ stellung ist in der ersten Zeile der Schaltmatrix der Fig. 2 dargestellt. Wird von der Betriebsstufe P auf die Betriebsstufe N umgeschaltet, schaltet das Magnetventil 7 für die Parksperre 1, wie in der zweiten Zeile der Schaltmatrix dargestellt, auf Durchlaß. Dadurch bewegt sich der Kolben des Schaltventils 4 für die Parksperre 1 in seine andere Endlage und die Zuleitung 13 für den Stellzylinder 12 der Parksperre 1 wird vom Pumpendruck des Hauptdruckölanschlusses 10 beaufschlagt. Der Kolben des Stellzylinders 12 verschiebt sich gegen den Druck der Feder 14 und entriegelt die Parksperre 1. Die Schalt­ glieder für Rückwärtsfahrt 2 und Vorwärtsfahrt 3 sind drucklos. Fig. 2 shows the switching matrix of the circuit diagram of Fig. 1. With the parking lock engaged, the switching state, which is also shown in Fig. 1, all three magnetic valves 7 , 8 , 9 lock. The pump pressure is only at the main pressure oil connection 10 . Due to the position of the Schaltven tile 4 , 5 , 6 , all outputs of the circuit are vented and the supply lines to the switching elements are depressurized. This applies to the switching elements for reverse travel 2 or forward travel 3 and the supply line 13 to the actuating cylinder 12 of the parking lock 1 . This switching position is shown in the first line of the switching matrix of FIG. 2. If the operating mode P is switched to operating mode N, the solenoid valve 7 for the parking lock 1 switches to passage, as shown in the second line of the switching matrix. As a result, the piston of the switching valve 4 for the parking lock 1 moves into its other end position and the supply line 13 for the actuating cylinder 12 of the parking lock 1 is acted upon by the pump pressure of the main pressure oil connection 10 . The piston of the actuating cylinder 12 moves against the pressure of the spring 14 and unlocks the parking lock 1 . The switching elements for reverse travel 2 and forward travel 3 are depressurized.

Wie die Zeilen 3 und 4 der Fig. 2 zeigen, wird beim Um­ schalten auf die Betriebsstufen für Rückwärts- bzw. Vor­ wärtsfahrt (R, D) das jeweilige Magnetventil 8, 9 auf Durchlaß geschaltet. Dadurch wird wiederum das betref­ fende Schaltglied 2, 3 über die entsprechenden Schaltven­ tile 5, 6 betätigt.As lines 3 and 4 of FIG. 2 show, the respective solenoid valve 8 , 9 is switched to passage when switching to the operating stages for reverse or forward travel (R, D). As a result, the switching element 2 , 3 in question is actuated via the corresponding switching valves 5 , 6 .

Fig. 3 zeigt eine zweite Steuereinrichtung zwischen Wähl­ einrichtung 15, die hier als Wählhebel ausgebildet ist, und der Parksperre. Von der Parksperre ist nur der außen am Getriebegehäuse 16 angebrachte Hebel 17 zur Not­ entriegelung sichtbar, dessen mechanische Koppelung mit der Parksperre 1 in Fig. 1 dargestellt ist. Eine Blockiereinrichtung 18 für den Hebel 17 verhindert in allen Stellungen der Wähleinrichtung 15, außer der für die Betriebsstufe P, eine Schwenkbewegung des Hebels 17 zum Einlegen der Parksperre. Wird die Wähleinrichtung 15 auf die Betriebsstufe P verdreht, schwenkt die Blockier­ einrichtung 18 aufgrund einer Bowdenzug-Verbindung 20 zur Wähleinrichtung 15 aus dem Bewegungsbereich des Hebels 17 heraus. Die Parksperre 1 wird durch die Kraft der Feder 14 (siehe Fig. 1) eingelegt. Fig. 3 shows a second control device between the selection device 15 , which is designed here as a selector lever, and the parking lock. From the parking lock, only the lever 17 attached to the outside of the transmission housing 16 for emergency unlocking is visible, the mechanical coupling of which to the parking lock 1 is shown in FIG. 1. A blocking device 18 for the lever 17 prevents a pivoting movement of the lever 17 for engaging the parking lock in all positions of the selector device 15 , except for that for the operating stage P. If the selector 15 is rotated to the operating level P, the blocking device 18 pivots due to a Bowden cable connection 20 to the selector 15 out of the range of movement of the lever 17 . The parking lock 1 is inserted by the force of the spring 14 (see Fig. 1).

Zur Notentriegelung der Parksperre ist ein zweiter Bowdenzug 21 vorgesehen, der den Hebel 17 mit einem vom Fahrer bedienbaren Handgriff 22 verbindet. Wird dieser betätigt, schwenkt der Hebel 17 und entriegelt dabei die Parksperre. Jetzt wird durch die Kraft der Feder 19 die Blockiereinrichtung 18 wieder in Eingriffsstellung mit dem Hebel 17 gebracht, und die Wähleinrichtung 15 aus der Betriebsstufe P zurückgestellt.For emergency unlocking of the parking lock, a second Bowden cable 21 is provided, which connects the lever 17 to a handle 22 that can be operated by the driver. If this is actuated, the lever 17 pivots and unlocks the parking lock. Now, the blocking device 18 is brought back into engagement position with the lever 17 by the force of the spring 19 , and the selector device 15 is reset from the operating stage P.

Claims (8)

1. Elektro-hydraulische Steuereinrichtung für ein Kraftfahrzeug-Automatikgetriebe mit einer vom Fahrer bedienbaren Wähleinrichtung (15) zur elektrischen Ansteuerung von Magnetventilen (7, 8, 9), die mit hydraulischen Schaltventilen (4, 5, 6) so zusammen­ wirken, daß durch hydraulische Druckbeaufschlagung von aus Stellzylindern, Kupplungen und Bremsen be­ stehenden Schaltgliedern (2, 3, 12) mindestens die Automatikgetriebe-Betriebsstufen D, R, N, P einleg­ bar sind, dadurch gekennzeichnet, daß die Betriebs­ stufen D, R und N durch Druckbeaufschlagung ein­ zelner Schaltglieder (2, 3) eingelegt werden, während die Betriebsstufe P durch Drucklosschaltung aller Schaltglieder (2, 3, 12) eingelegt wird.1. Electro-hydraulic control device for a motor vehicle automatic transmission with a driver-operated selection device ( 15 ) for the electrical control of solenoid valves ( 7 , 8 , 9 ), which interact with hydraulic switching valves ( 4 , 5 , 6 ) so that by Hydraulic pressurization of switching elements ( 2 , 3 , 12 ) consisting of actuating cylinders, clutches and brakes, at least the automatic transmission operating stages D, R, N, P are insertable, characterized in that the operating stages D, R and N are pressurized zelner switching elements ( 2 , 3 ) are inserted, while the operating level P is inserted by depressurizing all switching elements ( 2 , 3 , 12 ). 2. Elektro-hydraulische Steuereinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß von der Wählein­ richtung (15) drei 2/2-Wege-Ventile (7, 8, 9) an­ steuerbar sind und daß bei der Umsteuerung zwischen den Betriebsstufen D, R und N jeweils zwei dieser Magnetventile (7, 8, 9) geschaltet werden. 2. Electro-hydraulic control device according to claim 1, characterized in that from the select direction ( 15 ) three 2/2-way valves ( 7 , 8 , 9 ) are controllable and that in the reversal between the operating stages D, R and N two of these solenoid valves ( 7 , 8 , 9 ) are switched. 3. Elektro-hydraulische Steuereinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß Wähl­ einrichtung (15) und Parksperre (1) durch eine zweite Steuereinrichtung so gekoppelt sind, daß das Einrücken der Parksperre (1) verhindert wird, wenn an der Wähleinrichtung (15) nicht die Betriebsstufe P eingelegt ist.3. Electro-hydraulic control device according to claim 1 or 2, characterized in that the selection device ( 15 ) and parking lock ( 1 ) are coupled by a second control device so that the engagement of the parking lock ( 1 ) is prevented when on the selection device ( 15 ) Operating level P is not selected. 4. Elektro-hydraulische Steuereinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die zweite Steuerein­ richtung aus einer Wirkverbindung zwischen der Wähl­ einrichtung (15) und der Parksperre (1) besteht.4. Electro-hydraulic control device according to claim 3, characterized in that the second Steuerein direction consists of an operative connection between the selector device ( 15 ) and the parking lock ( 1 ). 5. Elektro-hydraulische Steuereinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Wirkverbindung ein Bowdenzug (20) ist.5. Electro-hydraulic control device according to claim 4, characterized in that the operative connection is a Bowden cable ( 20 ). 6. Elektro-hydraulische Steuereinrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß die Parksperre (1) durch eine vom Fahrer bedienbare Notentriegelung außer Eingriff gebracht werden kann.6. Electro-hydraulic control device according to one of claims 3 to 5, characterized in that the parking lock ( 1 ) can be disengaged by an emergency release operated by the driver. 7. Elektro-hydraulische Steuereinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Notentriegelung aus einer Wirkverbindung zwischen einem Handgriff (22) und der Parksperre (1) besteht.7. Electro-hydraulic control device according to claim 6, characterized in that the emergency release consists of an operative connection between a handle ( 22 ) and the parking lock ( 1 ). 8. Elektro-hydraulische Steuereinrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Wirkverbindung ein Bowdenzug (21) ist.8. Electro-hydraulic control device according to claim 7, characterized in that the operative connection is a Bowden cable ( 21 ).
DE19934322523 1993-07-06 1993-07-06 Control device for a motor vehicle automatic transmission Withdrawn DE4322523A1 (en)

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0814287A2 (en) * 1996-06-22 1997-12-29 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Part-lock mechanism for motor vehicle with an automatic transmission
DE19643812A1 (en) * 1996-10-30 1998-05-07 Zahnradfabrik Friedrichshafen Parking lock for automatic gear
DE19800880A1 (en) * 1998-01-13 1999-04-29 Bosch Gmbh Robert Gearshift with park setting
DE19850374A1 (en) * 1998-11-02 2000-05-04 Bayerische Motoren Werke Ag Motor vehicle with selector for automatic selection gearbox has blocking element that prevents deployment of parking lock if neutral operating setting selected using selection lever
DE19858543A1 (en) * 1998-12-18 2000-06-21 Zahnradfabrik Friedrichshafen Electro-hydraulic control device of car's auto gearbox has by manual unlocking of park lock device, control valve hydraulically controlled and thereby forwards gear applied.
DE19858540A1 (en) * 1998-12-18 2000-06-29 Zahnradfabrik Friedrichshafen Electronic-hydraulic control device for motor vehicle automatic gearbox acts via electrical interaction to drive control unit that drives couplings and brakes via electrically actuated valves
DE19950696A1 (en) * 1999-10-21 2001-04-26 Volkswagen Ag Double clutch gearbox esp. for motor vehicle with 1st gearbox input shaft having low gear and connecting with 1st clutch with 2nd gearbox input shaft connected with 2nd clutch having travel gear also common gearbox driven shaft
WO2001075336A1 (en) 2000-03-30 2001-10-11 Zf Friedrichshafen Ag Parking brake system for a gearbox of a motor vehicle
WO2002010619A1 (en) * 2000-08-02 2002-02-07 Zf Friedrichshafen Ag Parking brake, especially for an automotive gearbox
EP1199233A2 (en) * 2000-10-19 2002-04-24 Deere & Company Control device for a park-lock mechanism for motor vehicle
WO2004031623A1 (en) * 2002-09-28 2004-04-15 Daimlerchrysler Ag Parking brake actuator and driving position selector for an automatic transmission of a motor vehicle
DE10128430B4 (en) * 2001-06-12 2006-09-28 Zf Friedrichshafen Ag Parking brake system
DE102006012343A1 (en) * 2006-03-17 2007-09-20 Zf Friedrichshafen Ag Parking brake for a motor vehicle with an automatic transmission comprises a damping device formed as a brake acting on a parking brake wheel and actuated using a hydraulic brake cylinder arrangement
DE102007006354B4 (en) * 2006-02-13 2009-09-10 GM Global Technology Operations, Inc., Detroit Parking lock assembly for an electric transmission range selection system
DE102004025596B4 (en) * 2003-06-03 2011-01-05 General Motors Corp., Detroit Hydraulic servo arrangement for an internal electronic system for selection of transmission ranges (ETRS)
DE102009035348A1 (en) 2009-07-30 2011-02-03 Volkswagen Ag Parking lock device for automatic or automated motor vehicle transmission, has slide valve provided between relief valve and hydraulic cylinder in pressure pipe and servo-controlled by shift valve
DE102009028340A1 (en) 2009-08-07 2011-02-10 Zf Friedrichshafen Ag Device for emergency release of a parking brake of an automatic transmission of a motor vehicle
DE102004025595B4 (en) * 2003-06-03 2011-06-09 General Motors Corp. (N.D.Ges.D. Staates Delaware), Detroit Park Solenoid Assembly for an Internal Electronic System for Selection of Transmission Areas (ETRS)
DE10212038B4 (en) * 2002-03-19 2011-06-16 Zf Friedrichshafen Ag parking lock
US8157076B2 (en) 2008-04-04 2012-04-17 GM Global Technology Operations LLC Hydraulic control for a park by wire system used in a multimode hybrid transmission
DE102010043257A1 (en) * 2010-11-03 2012-05-03 Zf Friedrichshafen Ag Device for operating parking brake device, has piston-cylinder-device formed as double acting piston-cylinder-device, where piston of piston-cylinder-device is impinged with operating pressure
WO2013017202A1 (en) * 2011-08-04 2013-02-07 Daimler Ag Hydraulic controller for an automatic transmission of a motor vehicle
US8636130B2 (en) 2006-08-25 2014-01-28 Zf Friedrichshafen Ag Parking brake device for motor vehicle transmissions
DE102014214870A1 (en) 2014-07-29 2016-02-04 Zf Friedrichshafen Ag Emergency unlocking of a parking lock
US20190003589A1 (en) * 2017-06-29 2019-01-03 Zf Friedrichshafen Ag Actuation Arrangement
DE102020214576A1 (en) 2020-11-19 2022-05-19 Zf Friedrichshafen Ag Device and method for operating a parking lock of a motor vehicle transmission
DE102020214577A1 (en) 2020-11-19 2022-05-19 Zf Friedrichshafen Ag Device and method for operating a parking lock of a motor vehicle transmission

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DE19625019A1 (en) * 1996-06-22 1998-01-02 Bayerische Motoren Werke Ag Motor vehicle with an automatic transmission
EP0814287A3 (en) * 1996-06-22 1998-07-01 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Part-lock mechanism for motor vehicle with an automatic transmission
US5919112A (en) * 1996-06-22 1999-07-06 Bayerische Motoren Werke Aktiengesellschaft Motor vehicle having an automatically shifted transmission
EP0814287A2 (en) * 1996-06-22 1997-12-29 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Part-lock mechanism for motor vehicle with an automatic transmission
DE19643812A1 (en) * 1996-10-30 1998-05-07 Zahnradfabrik Friedrichshafen Parking lock for automatic gear
DE19800880A1 (en) * 1998-01-13 1999-04-29 Bosch Gmbh Robert Gearshift with park setting
DE19850374A1 (en) * 1998-11-02 2000-05-04 Bayerische Motoren Werke Ag Motor vehicle with selector for automatic selection gearbox has blocking element that prevents deployment of parking lock if neutral operating setting selected using selection lever
DE19850374B4 (en) * 1998-11-02 2007-05-10 Bayerische Motoren Werke Ag Motor vehicle with a drive motor and an automatically connected transmission with a selection device
US6527670B1 (en) 1998-12-18 2003-03-04 Zf Friedrichshafen Ag Control device for an automatic automobile transmission
DE19858543A1 (en) * 1998-12-18 2000-06-21 Zahnradfabrik Friedrichshafen Electro-hydraulic control device of car's auto gearbox has by manual unlocking of park lock device, control valve hydraulically controlled and thereby forwards gear applied.
DE19858540A1 (en) * 1998-12-18 2000-06-29 Zahnradfabrik Friedrichshafen Electronic-hydraulic control device for motor vehicle automatic gearbox acts via electrical interaction to drive control unit that drives couplings and brakes via electrically actuated valves
WO2000037836A1 (en) * 1998-12-18 2000-06-29 Zf Friedrichshafen Ag Control device for an automatic automobile transmission
DE19950696A1 (en) * 1999-10-21 2001-04-26 Volkswagen Ag Double clutch gearbox esp. for motor vehicle with 1st gearbox input shaft having low gear and connecting with 1st clutch with 2nd gearbox input shaft connected with 2nd clutch having travel gear also common gearbox driven shaft
US6675668B2 (en) 1999-10-21 2004-01-13 Volkswagen Ag Double clutch transmission and method for controlling an automated double clutch transmission
US6872165B2 (en) 2000-03-30 2005-03-29 Zf Freidrichshafen Ag Parking brake system for a gearbox of a motor vehicle
WO2001075336A1 (en) 2000-03-30 2001-10-11 Zf Friedrichshafen Ag Parking brake system for a gearbox of a motor vehicle
WO2002010619A1 (en) * 2000-08-02 2002-02-07 Zf Friedrichshafen Ag Parking brake, especially for an automotive gearbox
KR100822494B1 (en) * 2000-08-02 2008-04-16 젯트에프 프리드리히스하펜 아게 Parking brake, especially for an automotive gearbox
US6823976B2 (en) 2000-08-02 2004-11-30 Zf Friedrichshafen Ag Parking brake, especially for an automotive gearbox
EP1199233A2 (en) * 2000-10-19 2002-04-24 Deere & Company Control device for a park-lock mechanism for motor vehicle
EP1199233A3 (en) * 2000-10-19 2003-08-13 Deere & Company Control device for a park-lock mechanism for motor vehicle
DE10128430B4 (en) * 2001-06-12 2006-09-28 Zf Friedrichshafen Ag Parking brake system
DE10212038B4 (en) * 2002-03-19 2011-06-16 Zf Friedrichshafen Ag parking lock
WO2004031623A1 (en) * 2002-09-28 2004-04-15 Daimlerchrysler Ag Parking brake actuator and driving position selector for an automatic transmission of a motor vehicle
DE102004025596B4 (en) * 2003-06-03 2011-01-05 General Motors Corp., Detroit Hydraulic servo arrangement for an internal electronic system for selection of transmission ranges (ETRS)
DE102004025595B4 (en) * 2003-06-03 2011-06-09 General Motors Corp. (N.D.Ges.D. Staates Delaware), Detroit Park Solenoid Assembly for an Internal Electronic System for Selection of Transmission Areas (ETRS)
DE102007006354B4 (en) * 2006-02-13 2009-09-10 GM Global Technology Operations, Inc., Detroit Parking lock assembly for an electric transmission range selection system
DE102006012343A1 (en) * 2006-03-17 2007-09-20 Zf Friedrichshafen Ag Parking brake for a motor vehicle with an automatic transmission comprises a damping device formed as a brake acting on a parking brake wheel and actuated using a hydraulic brake cylinder arrangement
US8636130B2 (en) 2006-08-25 2014-01-28 Zf Friedrichshafen Ag Parking brake device for motor vehicle transmissions
US8157076B2 (en) 2008-04-04 2012-04-17 GM Global Technology Operations LLC Hydraulic control for a park by wire system used in a multimode hybrid transmission
DE102009035348A1 (en) 2009-07-30 2011-02-03 Volkswagen Ag Parking lock device for automatic or automated motor vehicle transmission, has slide valve provided between relief valve and hydraulic cylinder in pressure pipe and servo-controlled by shift valve
DE102009028340A1 (en) 2009-08-07 2011-02-10 Zf Friedrichshafen Ag Device for emergency release of a parking brake of an automatic transmission of a motor vehicle
US8770057B2 (en) 2009-08-07 2014-07-08 Zf Friedrichshafen Ag Device for emergency release of an automotive parking interlock
DE102010043257A1 (en) * 2010-11-03 2012-05-03 Zf Friedrichshafen Ag Device for operating parking brake device, has piston-cylinder-device formed as double acting piston-cylinder-device, where piston of piston-cylinder-device is impinged with operating pressure
WO2013017202A1 (en) * 2011-08-04 2013-02-07 Daimler Ag Hydraulic controller for an automatic transmission of a motor vehicle
DE102014214870A1 (en) 2014-07-29 2016-02-04 Zf Friedrichshafen Ag Emergency unlocking of a parking lock
US20190003589A1 (en) * 2017-06-29 2019-01-03 Zf Friedrichshafen Ag Actuation Arrangement
US10788126B2 (en) * 2017-06-29 2020-09-29 Zf Friedrichshafen Ag Actuation arrangement
DE102020214576A1 (en) 2020-11-19 2022-05-19 Zf Friedrichshafen Ag Device and method for operating a parking lock of a motor vehicle transmission
DE102020214577A1 (en) 2020-11-19 2022-05-19 Zf Friedrichshafen Ag Device and method for operating a parking lock of a motor vehicle transmission

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