DE10245369A1 - Blocking system for motor vehicle automatic gearboxes has a spring-loaded piston and locking rod which is released by hydraulically pressurizing the piston by a pump - Google Patents
Blocking system for motor vehicle automatic gearboxes has a spring-loaded piston and locking rod which is released by hydraulically pressurizing the piston by a pump Download PDFInfo
- Publication number
- DE10245369A1 DE10245369A1 DE2002145369 DE10245369A DE10245369A1 DE 10245369 A1 DE10245369 A1 DE 10245369A1 DE 2002145369 DE2002145369 DE 2002145369 DE 10245369 A DE10245369 A DE 10245369A DE 10245369 A1 DE10245369 A1 DE 10245369A1
- Authority
- DE
- Germany
- Prior art keywords
- parking lock
- pump
- pressure
- lock mechanism
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3483—Parking lock mechanisms or brakes in the transmission with hydraulic actuating means
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3491—Emergency release or engagement of parking locks or brakes
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control 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
- F16H63/48—Signals to a parking brake or parking lock; Control of parking locks or brakes being part of the transmission
-
- 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
- F16H2312/12—Parking
-
- 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)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Parksperrenmechanismus für ein Automatgetriebe oder ein automatisiertes Schaltgetriebe eines Kraftfahrzeugs gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a parking lock mechanism for an automatic transmission or an automated manual transmission Motor vehicle according to the preamble of claim 1.
Aus dem Stand der Technik sind Parksperrenmechanismen für Automatgetriebe bekannt. Üblicherweise weisen derartige Mechanismen eine vorgespannte Feder auf, über die die Parksperre aktiviert wird. Zum Deaktivieren der Parksperre wird ein hydraulisch oder pneumatisch betätigter Zylinder verwendet.Parking lock mechanisms are state of the art for automatic transmissions known. Usually such mechanisms have a preloaded spring, via which the parking lock is activated. To deactivate the parking lock a hydraulically or pneumatically operated cylinder is used.
Beispielsweise offenbart die
Des weiteren beschreibt die
Hierbei ist die Betätigungsstange gleichzeitig die Kolbenstange eines im Inneren des Getriebegehäuses angeordneten, einfach wirkenden Zylinders, der im drucklosen Zustand die Betätigungsstange vorschiebt und somit die Parksperre über eine Feder geschlossen hält und bei Druckbeaufschlagung diese öffnet. Der Zylinder wird im Normalfall mit Druck von der getriebeseitigen Ölpumpe versorgt. Da die Ölpumpe nur bei laufendem Fahrzeugmotor Öl liefert, kann die Parksperre nach Abschalten des Fahrzeugmotors durch die Federvorspannung aktiviert werden. Da dies nicht erwünscht ist, ist ein zusätzlicher Überdruckspeicher vorgesehen, der vorzugsweise in die vorhandene Getriebehydraulik eingebunden ist.Here is the operating rod at the same time the piston rod of an inside of the gear housing, single-acting cylinder that advances the actuating rod when depressurized and thus the parking lock over keeps a spring closed and opens it when pressurized. The cylinder is in the Normally supplied with pressure from the transmission oil pump. Because the oil pump only with the vehicle engine running oil supplies, the parking lock after switching off the vehicle engine activated by the spring preload. Since this is not desirable, is an additional pressure accumulator provided, preferably in the existing transmission hydraulics is involved.
Der zusätzliche Speicher kann den Öldruck für eine gewisse Zeit aufrecht halten. Da aber die hydraulischen Getriebesteuerungen in der Regel leckagebehaftet sind und die Größe eines Speichers bauraumbedingt eingeschränkt ist, ist die Zeit, die durch einen zusätzlichen Speicher überbrückt werden kann, ebenfalls eingeschränkt.The additional storage can control the oil pressure for some Keep time going. But since the hydraulic transmission controls are usually leaky and the size of a memory due to space requirements limited is the time that can be bridged by additional memory also restricted.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Parksperrenmechanismus für ein Automatgetriebe oder ein automatisiertes Schaltgetriebe eines Kraftfahrzeugs anzugeben, der diesen Nachteil des Standes der Technik vermeidet. Insbesondere soll eine unerwünschte Aktivierung der Parksperre nach Abschalten des Fahrzeugmotors vermieden werden. Außerdem soll der Parksperrenmechanismus die notwendige Energie bereitstellen, um eine eingelegte Parksperre ohne laufenden Fahrzeugmotor auslegen zu können.The present invention lies based on the task of a parking lock mechanism for an automatic transmission or to specify an automated manual transmission of a motor vehicle, which avoids this disadvantage of the prior art. In particular supposed to be an unwanted Activation of the parking lock after switching off the vehicle engine avoided become. Moreover the parking lock mechanism should provide the necessary energy to lay out an inserted parking lock without the vehicle engine running to be able to.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.This task is due to the characteristics of claim 1 solved. Further configurations and advantages emerge from the subclaims.
Demnach wird ein Parksperrenmechanismus für ein Automatgetriebe oder ein automatisiertes Schaltgetriebe, mit einer Parksperre, die über einen Federspeicher eingelegt wird und hydraulisch oder pneumatisch über die Druckbeaufschlagung eines Parksperrenzylinders ausgelegt wird vorgeschlagen, der eine vorzugsweise elektrische Zusatzpumpe umfasst, die entweder im Dauerbetrieb die Druckversorgung aufrechterhält oder bei Bedarf einen optional vorgesehenen, mit dem Parksperrenzylinder verbundenen Speicher wieder füllen kann.Accordingly, a parking lock mechanism for a Automatic transmission or an automated manual transmission, with a Parking lock that over a spring mechanism is inserted and hydraulically or pneumatically via the Pressurization of a parking lock cylinder is proposed, the a preferably electric auxiliary pump, which either maintains the pressure supply in continuous operation or, if required, an optionally provided connected to the parking lock cylinder can fill again.
Dadurch wird gewährleistet, dass einerseits der unerwünschte Effekt der Aktivierung der Parksperre nach Abschalten des Antriebsmotors des Getriebes nicht auftritt, andererseits eine mechanisch eingelegte Parksperre auch bei stehendem Antriebsmotor ausgelegt werden kann.This ensures that, on the one hand, the undesirable Effect of activation of the parking lock after switching off the drive motor the transmission does not occur, on the other hand a mechanically inserted Parking lock can be designed even with the drive motor stopped.
Die Erfindung wird im folgenden anhand der beigefügten Figur, welche den erfindungsgemäßen Parksperrenmechanismus schematisch darstellt, beispielhaft näher erläutert.The invention is illustrated below the attached Figure, which the parking lock mechanism according to the invention represents schematically, exemplified.
Gemäß der Figur umfasst der erfindungsgemäße Parksperrenmechanismus
Im Rahmen der gezeigten Ausführungsform ist
ein Speicher
Zum Ein- und Ausschalten der Pumpe
Die Bauteile Parksperrenzylinder
Im Rahmen einer nicht dargestellten
Ausführungsform
ist der Parksperrenzylinder
Gemäß der Erfindung können anstelle
der elektrisch angetriebenen Pumpe
- 11
- ParksperrenmechanismusParking lock mechanism
- 22
- ParksperrenzylinderParking lock cylinder
- 33
- Pumpepump
- 44
- Tanktank
- 55
- SpeicherStorage
- 66
- Druckschalterpressure switch
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002145369 DE10245369A1 (en) | 2002-09-27 | 2002-09-27 | Blocking system for motor vehicle automatic gearboxes has a spring-loaded piston and locking rod which is released by hydraulically pressurizing the piston by a pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002145369 DE10245369A1 (en) | 2002-09-27 | 2002-09-27 | Blocking system for motor vehicle automatic gearboxes has a spring-loaded piston and locking rod which is released by hydraulically pressurizing the piston by a pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10245369A1 true DE10245369A1 (en) | 2004-04-15 |
Family
ID=32009959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002145369 Withdrawn DE10245369A1 (en) | 2002-09-27 | 2002-09-27 | Blocking system for motor vehicle automatic gearboxes has a spring-loaded piston and locking rod which is released by hydraulically pressurizing the piston by a pump |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10245369A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008101457A1 (en) * | 2007-02-21 | 2008-08-28 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulic arrangement for controlling a belt-driven conical disk transmission |
DE102012010172A1 (en) * | 2012-05-15 | 2013-11-21 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Actuator assembly for a motor vehicle powertrain |
DE102014208374A1 (en) | 2014-05-05 | 2015-11-05 | Zf Friedrichshafen Ag | Parking lock actuator for a hydraulically operated parking lock of an automatic transmission |
DE102014208373A1 (en) | 2014-05-05 | 2015-11-05 | Zf Friedrichshafen Ag | Parking lock actuator for a hydraulically operated parking lock of an automatic transmission |
DE102014208879A1 (en) | 2014-05-12 | 2015-11-12 | Zf Friedrichshafen Ag | Parksperrenaktuator for a hydraulically actuated parking brake of a motor vehicle automatic transmission |
DE102014223037A1 (en) | 2014-11-12 | 2016-05-12 | Zf Friedrichshafen Ag | Parksperrenaktuator for a parking brake of a motor vehicle automatic transmission |
DE102015200978A1 (en) | 2015-01-22 | 2016-07-28 | Zf Friedrichshafen Ag | Parking lock actuator for a Parsperre a motor vehicle automatic transmission |
CN106641242A (en) * | 2015-10-30 | 2017-05-10 | 长城汽车股份有限公司 | Hydraulic parking push rod assembly, automatic transmission and automobile |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834074A1 (en) * | 1998-07-29 | 2000-02-03 | Zahnradfabrik Friedrichshafen | Manual release for parking brake in automatic transmission has a manually operated hydraulic pump to provide hydraulic pressure to release the brake |
DE10015781A1 (en) * | 2000-03-30 | 2001-10-04 | Zahnradfabrik Friedrichshafen | Parking lock system for motor vehicle gearbox has parking lock with releasing device subjected to vacuum independent of gearbox to release parking lock |
DE10143929A1 (en) * | 2000-09-08 | 2002-03-21 | Borgwarner Inc | Transmission control device |
DE10158434A1 (en) * | 2000-11-30 | 2002-06-06 | Denso Corp | Hydraulic pressure control device for automatic transmission of motor vehicle has failsafe device enabling feed of hydraulic pressure from first hydraulic pump to frictional engagement elements if control valve should seize closed |
-
2002
- 2002-09-27 DE DE2002145369 patent/DE10245369A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834074A1 (en) * | 1998-07-29 | 2000-02-03 | Zahnradfabrik Friedrichshafen | Manual release for parking brake in automatic transmission has a manually operated hydraulic pump to provide hydraulic pressure to release the brake |
DE10015781A1 (en) * | 2000-03-30 | 2001-10-04 | Zahnradfabrik Friedrichshafen | Parking lock system for motor vehicle gearbox has parking lock with releasing device subjected to vacuum independent of gearbox to release parking lock |
DE10143929A1 (en) * | 2000-09-08 | 2002-03-21 | Borgwarner Inc | Transmission control device |
DE10158434A1 (en) * | 2000-11-30 | 2002-06-06 | Denso Corp | Hydraulic pressure control device for automatic transmission of motor vehicle has failsafe device enabling feed of hydraulic pressure from first hydraulic pump to frictional engagement elements if control valve should seize closed |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008101457A1 (en) * | 2007-02-21 | 2008-08-28 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulic arrangement for controlling a belt-driven conical disk transmission |
DE102012010172A1 (en) * | 2012-05-15 | 2013-11-21 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Actuator assembly for a motor vehicle powertrain |
US9624990B2 (en) | 2012-05-15 | 2017-04-18 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Actuator arrangement for a motor vehicle drive train |
DE102014208374A1 (en) | 2014-05-05 | 2015-11-05 | Zf Friedrichshafen Ag | Parking lock actuator for a hydraulically operated parking lock of an automatic transmission |
DE102014208373A1 (en) | 2014-05-05 | 2015-11-05 | Zf Friedrichshafen Ag | Parking lock actuator for a hydraulically operated parking lock of an automatic transmission |
DE102014208879A1 (en) | 2014-05-12 | 2015-11-12 | Zf Friedrichshafen Ag | Parksperrenaktuator for a hydraulically actuated parking brake of a motor vehicle automatic transmission |
DE102014223037A1 (en) | 2014-11-12 | 2016-05-12 | Zf Friedrichshafen Ag | Parksperrenaktuator for a parking brake of a motor vehicle automatic transmission |
DE102015200978A1 (en) | 2015-01-22 | 2016-07-28 | Zf Friedrichshafen Ag | Parking lock actuator for a Parsperre a motor vehicle automatic transmission |
CN106641242A (en) * | 2015-10-30 | 2017-05-10 | 长城汽车股份有限公司 | Hydraulic parking push rod assembly, automatic transmission and automobile |
CN106641242B (en) * | 2015-10-30 | 2018-12-11 | 长城汽车股份有限公司 | A kind of hydraulic parking push rod assembly, automatic transmission and automobile |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |