DE102007035307A1 - Rotation reversal directing device for use in vehicle i.e. agricultural tractor, has gear wheels train formed as stepped planetary gear and integrated into planetary gear train of summation gear - Google Patents
Rotation reversal directing device for use in vehicle i.e. agricultural tractor, has gear wheels train formed as stepped planetary gear and integrated into planetary gear train of summation gear Download PDFInfo
- Publication number
- DE102007035307A1 DE102007035307A1 DE102007035307A DE102007035307A DE102007035307A1 DE 102007035307 A1 DE102007035307 A1 DE 102007035307A1 DE 102007035307 A DE102007035307 A DE 102007035307A DE 102007035307 A DE102007035307 A DE 102007035307A DE 102007035307 A1 DE102007035307 A1 DE 102007035307A1
- Authority
- DE
- Germany
- Prior art keywords
- planetary gear
- gear
- hydrostatic
- mechanical power
- summation
- 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.)
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
-
- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H2037/088—Power split variators with summing differentials, with the input of the CVT connected or connectable to the input shaft
- F16H2037/0886—Power split variators with summing differentials, with the input of the CVT connected or connectable to the input shaft with switching means, e.g. to change ranges
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2012—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with four sets of orbital gears
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2048—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with seven engaging means
Abstract
Description
Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zur Drehrichtungsumkehr für ein stufenloses hydrostatisch-mechanisches Leistungsverzweigungsgetriebe gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a device for reversing the direction of rotation for a stepless hydrostatic-mechanical power split transmission according to the preamble of claim 1.
Stufenlose hydrostatisch-mechanische Leistungsverzweigungsgetriebe sind aus dem Stand der Technik bekannt; sie werden vorzugsweise in landwirtschaftlichen Fahrzeugen, beispielsweise in Ackerschleppern eingesetzt. Derartige Leistungsverzweigungsgetriebe umfassen üblicherweise nach dem Stand der Technik ein stufenlos verstellbares Hydrostatgetriebe mit einer volumenverstellbaren und einer volumenkonstanten Einheit, einem Summierungsgetriebe und einem Bereichsgetriebe mit mehreren schaltbaren Gängen. Die über eine Antriebswelle eingeleitete Leistung verzweigt sich zum einen zu dem Hydrostatgetriebe und zum anderen auf eine Eingangswelle des Summierungsgetriebes.stepless Hydrostatic-mechanical power split transmissions are off known in the art; They are preferably in agricultural Vehicles, for example, used in farm tractors. such Power split transmissions usually include the Prior art, a continuously variable hydrostatic transmission with a volume-adjustable and a volume-constant unit, a summation gear and a range gearbox with several switchable gears. The over a drive shaft introduced power branches on the one hand to the Hydrostatgetriebe and on the other to an input shaft of the summation.
Durch das Summierungsgetriebe werden die Drehzahlen und Drehmomente des Hydrostatgetriebes und der Antriebsmaschine zusammengeführt. Mit Hilfe von Schaltelementen sind verschiedene Gänge anwählbar, indem die Ausgangswelle des Summiergetriebes über unterschiedliche Stirnradstufen mit der Abtriebswelle gekoppelt wird.By the summation gear will be the speeds and torques of the Hydrostatic transmission and the prime mover merged. With Help of switching elements are various courses selectable by the output shaft of the summation via different Spurradstufen is coupled to the output shaft.
Die Verwendung von derartigen Getrieben in Fahrzeugen, insbesondere bei landwirtschaftlichen Zugmaschinen, ermöglicht das Einstellen einer gewünschten Fahrgeschwindigkeit des Fahrzeugs durch die Wahl von Motordrehzahl und Getriebeübersetzung.The Use of such transmissions in vehicles, in particular in agricultural tractors, allows the setting a desired vehicle speed of the vehicle the choice of engine speed and transmission ratio.
Bei hydrostatisch-mechanischen Leistungsverzweigungsgetrieben wird die zur Realisierung des Rückwärtsganges erforderliche Drehrichtungsumkehr nach dem Stand der Technik durch ein nachgeschaltetes separates Wendegetriebe, das beispielsweise in Vorgelegebauweise angeordnet sein kann, dargestellt. Dadurch ergibt sich ein Gesamtgetriebe, das bei Vorwärts- und Rückwärtsfahrt in etwa den gleichen Geschwindigkeitsbereich erzeugt.in hydrostatic-mechanical power split transmissions is the required for the realization of the reverse gear Direction of rotation reversal according to the prior art by a downstream separate reverse gear, for example, in countershaft design can be arranged. This results in a total transmission, the forwards and backwards in about generates the same speed range.
Aus
der
Aus
der
Des
weiteren ist aus der
Aus
der
Die
Bei den aus dem Stand der Technik bekannten Konstruktionen werden durch die nachgeschalteten Kupplungen für Vorwärts- und Rückwärtsfahrt, die Kosten und der Konstruktions- und Montageaufwand erheblich erhöht, da diese Kupplungen zur Übertragung von hohen Momenten ausgelegt werden müssen. Des weiteren wird durch das separate Wendegetriebe in nachteiliger Weise zusätzlicher Bauraum benötigt, wobei durch die zwei benötigten Schaltelemente und die zusätzlichen Bauteile des Wendegetriebes der Montage- und Herstellungsaufwand hoch ist.In the known from the prior art constructions are significantly increased by the downstream clutches for forward and reverse, the cost and the construction and assembly costs, as these clutches designed for the transmission of high torque who have to. Furthermore, additional space is disadvantageously required by the separate reversing gear, which is high through the two required switching elements and the additional components of the reversing gear assembly and manufacturing costs.
Aus
der
Bei
dem Wendegetriebe gemäß
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zur Drehrichtungsumkehr für ein hydrostatisch-mechanisches Leistungsverzweigungsgetriebe anzugeben, bei dem die Leistungszweige in einem Summierungs- bzw. Koppelgetriebe umfassend zumindest einen Planetensatz summiert werden, welche einfach aufgebaut ist und geringen Bauraum erfordert.Of the The present invention is therefore based on the object, a device to reverse the direction of rotation for a hydrostatic-mechanical power split transmission specify that the power branches in a summation or coupling gear comprising at least one planetary gear set, which are simple is constructed and requires little space.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.These The object is solved by the features of claim 1. Further embodiments and advantages of the invention are apparent from the dependent claims.
Demnach wird eine Vorrichtung zur Drehrichtungsumkehr vorgeschlagen, welche einen als Stufenplanetengetriebe, umfassend einfache Stirnräder, ein Sonnenrad und kein Hohlrad ausgebildeten Rädersatz umfasst, der in das Summierungsgetriebe des stufenlosen Getriebes integriert ist.Therefore a device for reversing the direction is proposed, which as a stepped planetary gear, comprising simple spur gears, a Comprises sun gear and no ring gear formed gear set, integrated in the summation gear of the continuously variable transmission is.
Erfindungsgemäß wird das Stufenplanetengetriebe in einen existierenden Planetensatz des Summierungsgetriebes integriert, wobei die vorhandenen Planetenachsstiche und Lagerungen mit zusätzlichen Rückwärtsplanetenrädern ausgeführt werden. In vorteilhafter Weise wird das Stufenplanetengetriebe der erfindungsgemäßen Vorrichtung in den Planetensatz des Summierungsgetriebes integriert, dessen Steg, Sonnenrad oder Hohlrad den Abtrieb des Summierungsgetriebes bildet.According to the invention the stepped planetary gear in an existing planetary gearset of the summation integrated, with existing planetary axis stitches and bearings with additional reverse planet wheels be executed. Advantageously, the stepped planetary gear the device according to the invention in the planetary gear set the summation gear integrated, the bridge, sun gear or Ring gear forms the output of the summation.
Hierbei wird die maximale Fahrzeuggeschwindigkeit bei Rückwärtsfahrt im Vergleich zu hydrostatisch-mechanischen Leistungsverzweigungsgetrieben mit einem separaten Wendegetriebe reduziert und entspricht nicht der maximalen Fahrzeuggeschwindigkeit bei Vorwärtsfahrt, was sich aber aufgrund des typischen Einsatzspektrums der mit hydrostatisch-mechanischen Leistungsverzweigungsgetrieben ausgerüsteten Fahrzeuge nicht negativ auswirkt.in this connection will be the maximum vehicle speed when reversing compared to hydrostatic-mechanical power split transmissions reduced with a separate reverse gear and does not correspond the maximum vehicle speed when driving forwards, which, however, due to the typical range of use of hydrostatic-mechanical Power split transmissions equipped vehicles does not affect negatively.
Da hydrostatisch-mechanische Leistungsverzweigungsgetriebe in der Regel in landwirtschaftlichen Fahrzeugen mit hohen Antriebsleistungen und Einsatzgewichten eingebaut werden, wird aufgrund des typischen Einsatzspektrums, bei dem die Übertragungsfähigkeit hoher Zugkräfte in beiden Fahrtrichtungen relevant ist, nicht der volle Rückwärts – Geschwindigkeitsbereich wie bei Vorwärtsfahrt benötigt; typische Maximalgeschwindigkeiten sind ca. 56 km/h bei Vorwärtsfahrt und ca. 14 km/h bei Rückwärtsfahrt.There hydrostatic-mechanical power split transmission in the rule in agricultural vehicles with high drive power and insert weights will be installed due to the typical Range of application in which the transmission capacity high tractive forces in both directions is relevant, not the full reverse speed range as needed when driving forward; typical maximum speeds are about 56 km / h when driving forward and about 14 km / h at Reversing.
Durch die erfindungsgemäße Konzeption der Integration eines zusätzlichen kostengünstigen Rädersatzes an das existierende Summierungsgetriebe, wird die Funktion der Drehrichtungsumkehr innerhalb des Summierungsgetriebes auf einfache Weise dargestellt.By the inventive concept of integration an additional inexpensive wheelset to the existing summation gear, the function of reversing the direction of rotation becomes represented within the summation gear in a simple manner.
Die Erfindung wird im folgenden anhand der beigefügten Figuren beispielhaft näher erläutert. Es zeigen:The Invention will be described below with reference to the accompanying figures exemplified in more detail. Show it:
Der allgemeine Aufbau und die Funktionsweise hydrostatischmechanischer Leistungsverzweigungsgetriebe sind dem Fachmann bestens bekannt. Hier soll daher nur auf Besonderheiten der vorliegenden Erfindung eingegangen werden.The general construction and the functional The hydrostatic-mechanical power split transmission are well known to those skilled in the art. Here, therefore, only special features of the present invention will be discussed.
In
Der
hydrostatische Teil
Das
Summierungsgetriebe
Die
Funktionsweise des gezeigten Summierungsgetriebes ist beispielsweise
im Rahmen der
Wie bereits erläutert, werden durch die nachgeschalteten Kupplungen KV und KR für Vorwärts- und Rückwärtsfahrt, die Kosten und der Konstruktions- und Montageaufwand erheblich erhöht, wobei durch das separate Wendegetriebe in nachteiliger Weise zusätzlicher Bauraum benötigt wird.As already explained, by the downstream couplings KV and KR for forward and reverse, considerably increases the costs and the construction and assembly costs, whereby by the separate reversing gear adversely additional Space is needed.
In
Das
Stufenplanetengetriebe
Wenn
bei geöffneter Bremse BG, welche das Hohlrad des Planetensatzes
P4 mit dem Gehäuse lösbar verbindet, die Bremse
BR und die Kupplung K1 geschlossen wird, ergibt sich ein erster
langsamer Rückwärtsfahrbereich, wobei bei geschlossener Kupplung
K2 ein schnellerer Rückwärtsfahrbereich realisiert
wird, wie in
Der
Gegenstand
der
Durch die erfindungsgemäße Konzeption entfällt die Notwendigkeit eines separaten kompletten Wendegetriebes, wobei in vorteilhafter Weise lediglich ein Schaltelement, nämlich die Bremse BR, die als Lamellenbremse ausgeführt sein kann, zur Realisierung der Rückwärtsfahrt erforderlich ist.By the concept according to the invention is omitted the need for a separate complete reversing gear, taking advantageously only one switching element, namely the brake BR, which can be designed as a multi-disc brake, required for the realization of the reverse drive is.
Des weiteren kann der Steg des Planetensatzes P4 einfach ausgeführt sein und nur die drei ohnehin vorhandenen Planetenachsstiche und Lagerungen aufweisen, so dass diesbezüglich keine Modifikation erforderlich ist. Durch die geringe Anzahl an Neuteilen, nämlich des einen Sonnenrad, der drei als einfache Stirnräder ausgebildeten Planetenräder und der einen Bremse werden die Montage- und Herstellungskosten reduziert.Of Furthermore, the web of the planetary gear set P4 can be easily executed and only the three existing planet axis stitches and Have storage, so that in this regard no modification is required. Due to the small number of new parts, namely of a sun gear, the three trained as a simple spur gears Planetary wheels and one brake are the assembly and reduced manufacturing costs.
In vorteilhafter Weise ist durch Umschalten der Bremsen BG und BR ein Schuttlebetrieb des Fahrzeuges möglich, wobei zum Reversieren kein Stillstand des Fahrzeugs erforderlich ist. Zudem können durch Variation der Übersetzungen des Sonnenrades und der Planetenräder (d. h. durch Änderung der Zähnezahlen) im gleichen Einbauraum unterschiedliche maximale Rückwärtsgeschwindigkeiten und Zugkraftwerte dargestellt werden.In Advantageously, by switching the brakes BG and BR on Schuttlebetrieb of the vehicle possible, with reversing no standstill of the vehicle is required. In addition, you can by varying the translations of the sun gear and the Planetary wheels (ie by changing the number of teeth) in the same installation space different maximum reverse speeds and Traction values are displayed.
Das der Erfindung zugrunde liegende Prinzip der Integration eines als Stufenplanetengetriebe mit drei Planeten und einem Sonnenrad ausgeführten Radsatzes in einen Planetensatz des Summierungsgetriebes zur Realisierung der für den Rückwärtsgang erforderlichen Drehrichtungsumkehr kann auf weitere stufenlose leistungsverzweigte Getriebe übertragen werden, beispielsweise bei Getrieben umfassend einen Reibradvariator oder einen Variator mit einem Umschlingungselement.The The principle underlying the invention of the integration of a Stepped planetary gear with three planets and a sun gear wheel set in a planetary gearset of summation gear for the realization the required for the reverse gear Direction of rotation reversal can be further stepless power split Transmission are transmitted, for example, in transmissions comprehensive a Reibradvariator or a variator with a belt element.
Selbstverständlich fällt auch jede konstruktive Ausbildung, insbesondere jede räumliche Anordnung der Bauteile der Vorrichtung zur Drehrichtungsumkehr an sich sowie zueinander und soweit technisch sinnvoll, unter den Schutzumfang der vorliegenden Ansprüche, ohne die Funktion der Vorrichtung, wie sie in den Ansprüchen angegeben ist, zu beeinflussen, auch wenn diese Ausbildungen nicht explizit in den Figuren oder in der Beschreibung dargestellt sind.Of course Every constructive training, especially every one, also falls Spatial arrangement of the components of the device for reversing the direction of rotation in itself and to each other and as far as technically reasonable, among the Scope of the present claims, without the function the device as stated in the claims to influence, even if these training courses are not explicitly in the figures or in the description are shown.
- 11
- hydrostatischer Teil des hydrostatisch-mechanischen Leistungsverzweigungsgetriebeshydrostatic Part of the hydrostatic-mechanical power split transmission
- 22
- mechanischer Teil des hydrostatisch-mechanischen Leistungsverzweigungsgetriebesmechanical Part of the hydrostatic-mechanical power split transmission
- 33
- Eingangswelleinput shaft
- 44
- Zwischenwelleintermediate shaft
- 55
- Abtriebswelleoutput shaft
- 66
- WendegetriebeReverse gear
- 77
- Summierungsgetriebesumming
- 88th
- Vorrichtung zur Drehrichtungsumkehrcontraption to reverse the direction of rotation
- 99
- StufenplanetengetriebeStepped planetary gear
- 1010
- Planetplanet
- 1111
- Sonnenradsun
- 1212
- Stegweb
- 1313
- Sonnenradsun
- 1414
- Planetplanet
- 1515
- Abtriebswelleoutput shaft
- 1616
- Hohlradring gear
- 1717
- Lagercamp
- 1818
- Gehäusecasing
- K1K1
- Kupplungclutch
- K2K2
- Kupplungclutch
- K3K3
- Kupplungclutch
- K4K4
- Kupplungclutch
- BGBG
- Bremsebrake
- BRBR
- Bremsebrake
- P1P1
- Planetensatzplanetary set
- P2P2
- Planetensatzplanetary set
- P3P3
- Planetensatzplanetary set
- P4P4
- Planetensatzplanetary set
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10123105 A1 [0006] - DE 10123105 A1 [0006]
- - EP 0834027 B1 [0007, 0030] - EP 0834027 B1 [0007, 0030]
- - DE 10128076 A1 [0008] - DE 10128076 A1 [0008]
- - EP 0482039 B1 [0009] EP 0482039 B1 [0009]
- - DE 19522833 A1 [0010, 0030] DE 19522833 A1 [0010, 0030]
- - DE 10313486 A1 [0012, 0013] DE 10313486 A1 [0012, 0013]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007035307A DE102007035307A1 (en) | 2007-07-27 | 2007-07-27 | Rotation reversal directing device for use in vehicle i.e. agricultural tractor, has gear wheels train formed as stepped planetary gear and integrated into planetary gear train of summation gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007035307A DE102007035307A1 (en) | 2007-07-27 | 2007-07-27 | Rotation reversal directing device for use in vehicle i.e. agricultural tractor, has gear wheels train formed as stepped planetary gear and integrated into planetary gear train of summation gear |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007035307A1 true DE102007035307A1 (en) | 2009-01-29 |
Family
ID=40157318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007035307A Withdrawn DE102007035307A1 (en) | 2007-07-27 | 2007-07-27 | Rotation reversal directing device for use in vehicle i.e. agricultural tractor, has gear wheels train formed as stepped planetary gear and integrated into planetary gear train of summation gear |
Country Status (1)
Country | Link |
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DE (1) | DE102007035307A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010003944A1 (en) * | 2010-04-14 | 2011-12-01 | Zf Friedrichshafen Ag | Transmission device for drive train of tractor, has two planetary gear devices coaxial arranged to each other, and manual transmission formed with one of planetary gear devices to represent translation regions |
WO2012008884A1 (en) * | 2010-07-16 | 2012-01-19 | Volvo Construction Equipment Ab | Continuously variable transmission and a working maching including a continuously variable transmission |
DE102011082673A1 (en) * | 2011-09-14 | 2013-03-14 | Zf Friedrichshafen Ag | Gearbox device for drivetrain of agricultural vehicle, has determination unit arranged in power path between variator and gear device and determining rotational torque in path, where speed of gear device is determined based on translation |
DE102011082672A1 (en) * | 2011-09-14 | 2013-03-14 | Zf Friedrichshafen Ag | Transmission device for vehicle, has variator that is connected with transmission input shaft through gear box unit, and power path that is supported between wave shaft of variator and planetary gear unit by rotational torque |
DE102020201775B3 (en) * | 2020-02-13 | 2021-02-04 | Zf Friedrichshafen Ag | Power-split continuously variable transmission |
WO2021185643A1 (en) * | 2020-03-17 | 2021-09-23 | Zf Friedrichshafen Ag | Power-split continuously variable transmission |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1290781B (en) * | 1965-08-31 | 1969-03-13 | Delalio George Martin | Infinitely adjustable, hydrostatic-mechanical compound transmission with power split |
DE4106746A1 (en) * | 1990-09-02 | 1992-09-03 | Michael Meyerle | Four-shaft summing gear drive for hydrostatic-mechanical drive - has two planet gears on branch shaft with its two output shafts selectively connected to second downstream gear drive |
EP0482039B1 (en) | 1989-07-14 | 1994-04-27 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Continuously variable driving unit of a motor vehicle |
DE19522833A1 (en) | 1995-06-23 | 1997-01-02 | Zahnradfabrik Friedrichshafen | Power split transmission |
EP1012493B1 (en) * | 1997-09-09 | 2002-08-14 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Hydrostatic mechanical torque divider transmission with four areas |
DE10123105A1 (en) | 2001-05-12 | 2002-11-14 | Zahnradfabrik Friedrichshafen | Power branching gearbox has switching device between hydrostatic power branch, summation gearbox for selective connection of hydrostatic power branch to summation gearbox |
DE10128076A1 (en) | 2001-06-09 | 2002-12-12 | Zahnradfabrik Friedrichshafen | Torque division transmission esp. for agricultural vehicles has coupled gear with four different seats of planetary gears, and hydrostatic branch with pump and motor volume of 40ccm/RPM |
WO2004072512A1 (en) * | 2003-02-14 | 2004-08-26 | Deere & Company | Four mode hydro-mechanical transmission |
DE10313486A1 (en) | 2003-03-26 | 2004-10-07 | Zf Friedrichshafen Ag | Combined hydraulic- and mechanical transmission with power combination, has device interrupting transmission on hydraulic drive side |
DE10332216A1 (en) * | 2003-07-16 | 2005-02-03 | Zf Friedrichshafen Ag | Power transmission unit with mechanical and hydrostatic branches, comprising brake units arranged one upon another |
-
2007
- 2007-07-27 DE DE102007035307A patent/DE102007035307A1/en not_active Withdrawn
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1290781B (en) * | 1965-08-31 | 1969-03-13 | Delalio George Martin | Infinitely adjustable, hydrostatic-mechanical compound transmission with power split |
EP0482039B1 (en) | 1989-07-14 | 1994-04-27 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Continuously variable driving unit of a motor vehicle |
DE4106746A1 (en) * | 1990-09-02 | 1992-09-03 | Michael Meyerle | Four-shaft summing gear drive for hydrostatic-mechanical drive - has two planet gears on branch shaft with its two output shafts selectively connected to second downstream gear drive |
DE19522833A1 (en) | 1995-06-23 | 1997-01-02 | Zahnradfabrik Friedrichshafen | Power split transmission |
EP0834027B1 (en) | 1995-06-23 | 1999-03-24 | Zf Friedrichshafen Ag | Hydrostatic-mechanical power distribution transmission |
EP1012493B1 (en) * | 1997-09-09 | 2002-08-14 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Hydrostatic mechanical torque divider transmission with four areas |
DE10123105A1 (en) | 2001-05-12 | 2002-11-14 | Zahnradfabrik Friedrichshafen | Power branching gearbox has switching device between hydrostatic power branch, summation gearbox for selective connection of hydrostatic power branch to summation gearbox |
DE10128076A1 (en) | 2001-06-09 | 2002-12-12 | Zahnradfabrik Friedrichshafen | Torque division transmission esp. for agricultural vehicles has coupled gear with four different seats of planetary gears, and hydrostatic branch with pump and motor volume of 40ccm/RPM |
WO2004072512A1 (en) * | 2003-02-14 | 2004-08-26 | Deere & Company | Four mode hydro-mechanical transmission |
DE10313486A1 (en) | 2003-03-26 | 2004-10-07 | Zf Friedrichshafen Ag | Combined hydraulic- and mechanical transmission with power combination, has device interrupting transmission on hydraulic drive side |
DE10332216A1 (en) * | 2003-07-16 | 2005-02-03 | Zf Friedrichshafen Ag | Power transmission unit with mechanical and hydrostatic branches, comprising brake units arranged one upon another |
Cited By (7)
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DE102010003944A1 (en) * | 2010-04-14 | 2011-12-01 | Zf Friedrichshafen Ag | Transmission device for drive train of tractor, has two planetary gear devices coaxial arranged to each other, and manual transmission formed with one of planetary gear devices to represent translation regions |
WO2012008884A1 (en) * | 2010-07-16 | 2012-01-19 | Volvo Construction Equipment Ab | Continuously variable transmission and a working maching including a continuously variable transmission |
US8747269B2 (en) | 2010-07-16 | 2014-06-10 | Volvo Contruction Equipment Ab | Continuously variable transmission and a working machine including a continuously variable transmission |
DE102011082673A1 (en) * | 2011-09-14 | 2013-03-14 | Zf Friedrichshafen Ag | Gearbox device for drivetrain of agricultural vehicle, has determination unit arranged in power path between variator and gear device and determining rotational torque in path, where speed of gear device is determined based on translation |
DE102011082672A1 (en) * | 2011-09-14 | 2013-03-14 | Zf Friedrichshafen Ag | Transmission device for vehicle, has variator that is connected with transmission input shaft through gear box unit, and power path that is supported between wave shaft of variator and planetary gear unit by rotational torque |
DE102020201775B3 (en) * | 2020-02-13 | 2021-02-04 | Zf Friedrichshafen Ag | Power-split continuously variable transmission |
WO2021185643A1 (en) * | 2020-03-17 | 2021-09-23 | Zf Friedrichshafen Ag | Power-split continuously variable transmission |
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