DE102018201751A1 - Power split continuously variable transmission with two driving ranges - Google Patents
Power split continuously variable transmission with two driving ranges Download PDFInfo
- Publication number
- DE102018201751A1 DE102018201751A1 DE102018201751.4A DE102018201751A DE102018201751A1 DE 102018201751 A1 DE102018201751 A1 DE 102018201751A1 DE 102018201751 A DE102018201751 A DE 102018201751A DE 102018201751 A1 DE102018201751 A1 DE 102018201751A1
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- Germany
- Prior art keywords
- planetary gear
- gear set
- transmission
- continuously variable
- variable transmission
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/12—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric gearing
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- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
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- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
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- Transmission Devices (AREA)
Abstract
Die vorliegende Erfindung bezieht sich auf ein leistungsverzweigtes stufenloses Getriebe mit einem Antrieb, einem Abtrieb, einem drehfesten Bauteil, einem ersten, zweiten und dritten Planetenradsatz, einem Variator mit einem ersten und einem zweiten Energiewandler, und einer ersten und einer zweiten Schalteinrichtung. Die Planetenradsätze weisen jeweils drei Elemente auf. Das erste Element des ersten Planetenradsatzes ist mit dem zweiten Element des zweiten Planetenradsatzes permanent drehfest verbunden, das erste Element des ersten Planetenradsatzes und das zweite Element des zweiten Planetenradsatzes sind mit dem Antrieb wirkverbunden, das dritte Element des ersten Planetenradsatzes ist mit dem ersten Element des zweiten Planetenradsatzes und das dritte Element des zweiten Planetenradsatzes ist mit dem ersten Element des dritten Planetenradsatzes permanent drehfest verbunden, und das zweite Element des dritten Planetenradsatzes ist mit dem Abtrieb wirkverbunden. Ferner ist der erste Energiewandler mit dem zweiten Element des ersten Planetenradsatzes und der zweite Energiewandler mit dem ersten Element des dritten Planetenradsatzes wirkverbunden. Das dritte Element des dritten Planetenradsatzes ist über die erste Schalteinrichtung an dem drehfesten Bauteil festsetzbar und über die zweite Schalteinrichtung drehfest mit dem zweiten Element des ersten Planetenradsatzes verbindbar. The present invention relates to a power-split continuously variable transmission with a drive, an output, a non-rotatable component, a first, second and third planetary gear, a variator with a first and a second energy converter, and a first and a second switching device. The planetary gear sets each have three elements. The first element of the first planetary gear set is permanently connected non-rotatably to the second element of the second planetary gear set, the first element of the first planetary gear set and the second element of the second planetary gear set are operatively connected to the drive, the third element of the first planetary gear set is connected to the first element of the second Planetenradsatzes and the third element of the second planetary gear set is permanently connected to the first element of the third planetary gear set rotationally fixed, and the second element of the third planetary gear set is operatively connected to the output. Furthermore, the first energy converter is operatively connected to the second element of the first planetary gear set and the second energy converter to the first element of the third planetary gear set. The third element of the third planetary gear set can be fixed to the non-rotatable component via the first switching device and connected in a rotationally fixed manner to the second element of the first planetary gear set via the second switching device.
Description
Technisches GebietTechnical area
Die vorliegende Erfindung bezieht sich auf ein leistungsverzweigtes stufenloses Getriebe mit zwei Fahrbereichen. Das Getriebe kann zur Verwendung in einer Arbeitsmaschine ausgebildet sein. Ferner bezieht sich die vorliegende Erfindung auf einen Antriebsstrang für eine Arbeitsmaschine mit solch einem leistungsverzweigten stufenlosen Getriebe, und auf eine Arbeitsmaschine mit solch einem Antriebsstrang.The present invention relates to a power-split continuously variable transmission with two driving ranges. The transmission may be designed for use in a work machine. Furthermore, the present invention relates to a drive train for a work machine with such a power-split continuously variable transmission, and to a work machine with such a drive train.
Stand der TechnikState of the art
Leistungsverzweigte stufenlose Getriebe, insbesondere hydrostatisch-mechanisch leistungsverzweigte Getriebe, kommen im Bereich von Arbeitsmaschinen häufig zum Einsatz. Solche hydromechanischen Getriebe ermöglichen das stufenlose Einstellen der Getriebeübersetzung bei relativ hohen Wirkungsgraden, weisen jedoch eine verhältnismäßig geringe Getriebespreizung auf. Unter der Spreizung eines Getriebes wird das Verhältnis zwischen größter und kleinster Übersetzung verstanden. Zur Vergrößerung der Getriebespreizung wird beispielsweise in der
Darstellung der ErfindungPresentation of the invention
Die vorliegende Erfindung bezieht sich auf ein leistungsverzweigtes stufenloses Getriebe. Bei einem stufenlosen Getriebe ist die Übersetzung stufenlos einstellbar. Bei der Leistungsverzweigung kann es sich beispielsweise um eine hydrostatisch-mechanische und/oder um eine elektrisch-mechanische Leistungsverzweigung handeln. Das Getriebe umfasst einen Antrieb, an dem die zu übersetzende Größe in das Getriebe eingespeist wird. Ebenso umfasst das Getriebe einen Abtrieb, an dem die durch das Getriebe übersetzte Größe ausgegeben wird. Ferner weist das Getriebe ein drehfestes Bauteil auf, bei dem es sich um ein permanent stillstehendes Bauteil handeln kann, beispielsweise um ein Getriebegehäuse.The present invention relates to a power-split continuously variable transmission. In a continuously variable transmission, the ratio is infinitely adjustable. The power split may be, for example, a hydrostatic-mechanical and / or an electric-mechanical power split. The transmission includes a drive to which the variable to be translated is fed into the transmission. Likewise, the transmission comprises an output at which the size translated by the transmission is output. Further, the transmission has a non-rotatable component, which may be a permanently stationary component, for example, a transmission housing.
Das Getriebe weist einen ersten, einen zweiten und einen dritten Planetenradsatz auf. Das Getriebe kann nur einen ersten, zweiten und dritten und damit keinen weiteren Planetenradsatz aufweisen. Bei den Planentenradsätzen kann es sich jeweils um einen Minus-Planetenradsatz handeln, bei dem die Standübersetzung, welche das Drehzahlverhältnis von Sonnenrad und Hohlrad bei festgehaltenem Steg beschreibt, negativ ist. Ebenso kann es sich bei einem, mehreren oder allen Planetenradsätzen um einen Plus-Planetenradsatz handeln, bei dem die Standübersetzung positiv ist.The transmission has a first, a second and a third planetary gear. The transmission can only have a first, second and third and thus no further planetary gear. The Planentenradsätzen can each be a minus planetary gear, in which the state ratio, which describes the speed ratio of sun and ring gear at a fixed web is negative. Likewise, one, several or all of the planetary gear sets may be a plus planetary gear set in which stand translation is positive.
Die Planetenradsätze weisen jeweils drei Elemente auf. Bei dem ersten Element des jeweiligen Planetenradsatzes handelt es sich um ein Sonnenrad. Bei dem zweiten Element des jeweiligen Planetenradsatzes handelt es sich im Falle eines Minus-Planetenradsatzes um einen Planetenträger und im Falle eines Plus-Planetenradsatzes um ein Hohlrad. Bei dem dritten Element des jeweiligen Planetenradsatzes handelt es sich im Falle eines Minus-Planetenradsatzes um ein Hohlrad und im Falle eines Plus-Planetenradsatzes um einen Planetenträger. Der Planetenträger ist auch als Planetensteg oder Steg bekannt. Im Falle eines Minus-Planetenradsatzes kann der Planetenträger mindestens ein, insbesondere aber mehrere, beispielweise drei, Planetenräder tragen, die jeweils sowohl mit dem Sonnenrad als auch mit dem Hohlrad kämmen. Im Falle eines Plus-Planetenradsatzes kann der Planetenträger mindestes ein, insbesondere aber mehrere, beispielweise drei, Planetenradpaare tragen. Eines der Planetenräder des Paars kann mit dem Sonnenrad und das andere mit dem Hohlrad kämmen, wobei die beiden Planetenräder ferner untereinander kämmen können.The planetary gear sets each have three elements. The first element of the respective planetary gear set is a sun gear. In the case of a minus planetary gear set, the second element of the respective planetary gear set is a planetary carrier and, in the case of a plus planetary gear set, a ring gear. In the case of a minus planetary gear set, the third element of the respective planetary gear set is a ring gear and, in the case of a plus planetary gear set, a planet carrier. The planet carrier is also known as the planet web or bridge. In the case of a negative planetary gear set, the planet carrier can carry at least one, but in particular a plurality, for example three, planetary gears which mesh with both the sun gear and the ring gear. In the case of a plus planetary gear set, the planet carrier at least one, but especially several, for example, three, planetary gear pairs wear. One of the planet gears of the pair may mesh with the sun gear and the other with the ring gear, and the two planet gears may further mesh with each other.
Ferner umfasst das Getriebe einen Variator mit einem ersten und einem zweiten Energiewandler, die miteinander gekoppelt sein und in Wirkverbindung stehen können. Bei dem Variator kann es sich um einen hydraulischen und/oder elektrischen Variator handeln. Der Variator ist eingerichtet, um eine Übersetzung des Getriebes stufenlos zu variieren.Furthermore, the transmission comprises a variator with a first and a second energy converter, which can be coupled together and be in operative connection. The variator may be a hydraulic and / or electrical variator. The variator is set up to infinitely vary a transmission ratio.
Darüber hinaus weist das Getriebe eine erste und eine zweite Schalteinrichtung auf. Bei einer Schalteinrichtung kann es sich um eine Kupplung und/oder um eine Bremse handeln. Die Schalteinrichtungen können als formschlüssige Schalteinrichtungen, beispielsweise Klauen und/oder Synchronisierungen, und/oder als reibschlüssige Schalteinrichtungen, beispielsweise Lamellenschaltelemente und/oder Bandbremsen, ausgebildet sein.In addition, the transmission has a first and a second switching device. A switching device may be a clutch and / or a brake. The switching devices can be embodied as form-locking switching devices, for example claws and / or synchronizers, and / or as frictional switching devices, for example lamellae switching elements and / or band brakes.
Sind zwei Elemente wirkverbunden, so sind diese unmittelbar oder mittelbar derart miteinander gekoppelt, dass eine Bewegung des einen Elements eine Reaktion des anderen Elements bewirkt. Zwischen den Elementen können dabei weitere Elemente, beispielsweise eine oder mehrere Getriebestufen, vorgesehen sein. Unter einer permanent drehfesten Verbindung zweier Elemente wird hingegen eine Verbindung verstanden, bei welcher die beiden Elemente zu allen bestimmungsgemäßen Zuständen des Getriebes starr miteinander gekoppelt sind. Die Elemente können dabei als drehfest miteinander verbundene Einzelkomponenten oder auch einstückig vorliegen.If two elements are operatively connected, they are directly or indirectly coupled to one another in such a way that a movement of the one element causes a reaction of the other element. In this case, further elements, for example one or more gear stages, can be provided between the elements. By a permanently non-rotatable connection of two elements, however, a connection is understood, in which the two elements are rigidly coupled to all intended states of the transmission. The elements can be rotatable with each other connected individual components or in one piece.
Ist hingegen ein Schaltelement zwischen zwei Bauelementen des Getriebes vorgesehen, so sind diese Bauelemente nicht permanent drehfest miteinander verbunden, jedoch über das Schaltelement drehfest miteinander verbindbar. Eine drehfeste Koppelung wird erst durch Betätigung des zwischenliegenden Schaltelements herbeigeführt. Dabei bedeutet eine Betätigung des Schaltelements, dass dieses in einen geschlossenen Zustand überführt wird, sodass die an das Schaltelement unmittelbar angekoppelten Bauelemente in ihren Drehbewegungen aneinander angeglichen werden. Ist das betroffene Schaltelement als formschlüssiges Schaltelement ausgebildet, werden die hierüber unmittelbar drehfest miteinander verbundenen Bauelemente unter gleicher Drehzahl laufen. Im Falle eines kraftschlüssigen Schaltelements können, auch nach einem Betätigen desselbigen, Drehzahlunterschiede zwischen den Bauelementen bestehen. Dieser gewollte oder auch ungewollte Zustand wird im Rahmen der Erfindung dennoch als drehfeste Verbindung der jeweiligen Bauelemente bezeichnet.If, in contrast, a switching element is provided between two components of the transmission, then these components are not permanently connected to one another in a rotationally fixed manner, but can be connected to one another in a rotationally fixed manner via the switching element. A rotationally fixed coupling is brought about only by actuation of the intermediate switching element. In this case, an actuation of the switching element means that this is transferred into a closed state, so that the components directly coupled to the switching element are matched in their rotational movements to each other. If the affected switching element is designed as a form-locking switching element, the components which are directly connected to one another in a rotationally fixed manner will run at the same rotational speed. In the case of a non-positive switching element, even after an operation desselbigen, speed differences between the components exist. This intentional or unwanted state is still referred to in the context of the invention as a rotationally fixed connection of the respective components.
Das erste Element des ersten Planetenradsatzes ist mit dem zweiten Element des zweiten Planetenradsatzes permanent drehfest verbunden. Ferner sind das erste Element des ersten Planetenradsatzes und das zweite Element des zweiten Planetenradsatzes mit dem Antrieb wirkverbunden. Das dritte Element des ersten Planetenradsatzes ist mit dem ersten Element des zweiten Planetenradsatzes und das dritte Element des zweiten Planetenradsatzes mit dem ersten Element des dritten Planetenradsatzes permanent drehfest verbunden. Ferner ist das zweite Element des dritten Planetenradsatzes mit dem Abtrieb wirkverbunden.The first element of the first planetary gear set is permanently connected non-rotatably to the second element of the second planetary gear set. Furthermore, the first element of the first planetary gear set and the second element of the second planetary gear set are operatively connected to the drive. The third element of the first planetary gear set is connected to the first element of the second planetary gear set and the third element of the second planetary gear set with the first element of the third planetary gear set permanently rotatably connected. Furthermore, the second element of the third planetary gear set is operatively connected to the output.
Darüber hinaus ist der erste Energiewandler des Variators mit dem zweiten Element des ersten Planetenradsatzes und der zweite Energiewandler des Variators mit dem ersten Element des dritten Planetenradsatzes wirkverbunden. Der erste Energiewandler kann permanent drehfest mit dem zweiten Element des ersten und/oder der zweite Energiewandler permanent drehfest mit dem ersten Element des dritten Planetenradsatzes verbunden sein.In addition, the first energy converter of the variator is operatively connected to the second element of the first planetary gear set and the second energy converter of the variator with the first element of the third planetary gear set. The first energy converter may be permanently non-rotatably connected to the second element of the first and / or the second energy converter permanently rotatably connected to the first element of the third planetary gear set.
Durch Betätigung der ersten Schalteinrichtung wird das dritte Element des dritten Planetenradsatzes an dem drehfesten Bauteil des Getriebes festgesetzt. Durch das Festsetzen wird das dritte Element festgehalten und kann damit nicht rotieren. In diesem Zustand stellt das Getriebe einen ersten Getriebefahrbereich mit einem ersten Übersetzungsbereich bereit. Unter einem Übersetzungsbereich wird ein Spektrum von durch das Getriebe einstellbaren Übersetzungen bezeichnet. Wird hingegen die zweite Schalteinrichtung betätigt, wird das dritte Element des dritten Planetenradsatzes drehfest mit dem zweiten Element des ersten Planetenradsatzes verbunden. In diesem Zustand stellt das Getriebe einen zweiten Getriebefahrbereich mit einem zweiten Übersetzungsbereich bereit. Insbesondere handelt es sich bei dem ersten und zweiten Übersetzungsbereich um voneinander verschiedene Übersetzungsbereiche, sodass die Getriebespreizung vergrößert werden kann.By actuating the first switching device, the third element of the third planetary gear set is fixed to the rotationally fixed component of the transmission. By setting the third element is held and can not rotate with it. In this state, the transmission provides a first transmission range with a first gear range. A range of translations refers to a range of transmissions that can be adjusted by the transmission. If, however, the second switching device is actuated, the third element of the third planetary gear set is rotatably connected to the second element of the first planetary gear set. In this state, the transmission provides a second transmission range with a second gear range. In particular, the first and second transmission ranges are different transmission ranges from each other, so that the transmission spread can be increased.
Mit der vorliegenden Erfindung wird ein leistungsverzweigtes stufenloses Getriebe mit zwei Fahrbereichen und damit einer verhältnismäßig großen Getriebespreizung bereitgestellt. Das Getriebe weist einen einfachen, kompakten und kosteneffizienten Aufbau auf, weil es lediglich drei Planetenradsätze und lediglich zwei Schaltelemente umfasst. Ferner resultiert das Getriebe in geringen Bauteil- und Variatorbelastungen.With the present invention, a power-split continuously variable transmission with two driving ranges and thus a relatively large transmission spread is provided. The transmission has a simple, compact and cost-effective design, because it comprises only three planetary gear sets and only two switching elements. Furthermore, the transmission results in low component and Variatorbelastungen.
Die Energiewandler des Variators können als elektrische Maschinen ausgebildet sein. Die elektrischen Maschinen können jeweils eine Leistungselektronik aufweisen. Ferner ist es denkbar, dass die elektrischen Maschinen über einen Zwischenkreis elektrische Leistung für einen Verbraucher zur Verfügung stellen und elektrische Leistung demnach aus dem Getriebe abführbar ist. In einer Ausführungsform können die elektrischen Maschinen jeweils als Motor und Generator betrieben werden. Ebenso ist es denkbar, dass eine der Maschinen nur als Motor und die andere nur als Generator betreibbar ist. Alternativ oder zusätzlich können die Energiewandler als Hydrostaten ausgebildet sein.The energy converters of the variator can be designed as electrical machines. The electrical machines can each have a power electronics. Furthermore, it is conceivable that the electrical machines provide electrical power for a consumer via a DC link and that electrical power can therefore be dissipated from the transmission. In one embodiment, the electric machines may each be operated as a motor and a generator. It is also conceivable that one of the machines is operable only as a motor and the other only as a generator. Alternatively or additionally, the energy converters can be designed as hydrostatic devices.
Der erste Energiewandler kann an das zweite Element des ersten Planetenradsatzes über eine Vorübersetzung angebunden werden. Alternativ oder zusätzlich kann der zweite Energiewandler an das erste Element des dritten Planetenradsatzes über eine Vorübersetzung angebunden werden. Bei der Vorübersetzung kann es sich um eine Stirnrad- und/oder Planetenradstufe handeln. Beispielsweise kann der zweite Energiewandler des Variators über einen weiteren Planetenradsatz mit dem ersten Element des dritten Planetenradsatzes verbunden sein. Bei dem weiteren Planetenradsatz kann es sich um einen Minus-Planetenradsatz handeln, bei dem das Hohlrad festgesetzt ist. Der Planetenträger kann permanent drehfest an das zweite Element des dritten Planetenradsatzes angebunden sein. Das Sonnenrad kann permanent drehfest an den zweiten Energiewandler angebunden sein. Handelt es sich bei den Energiewandlern um elektrische Maschinen, macht es die Vorübersetzung möglich, elektrische Maschinen mit einer geringeren Baugröße zu verwenden.The first energy converter can be connected to the second element of the first planetary gear set via a pre-translation. Alternatively or additionally, the second energy converter can be connected to the first element of the third planetary gear set via a pre-translation. The pretranslation can be a spur gear and / or planetary gear stage. For example, the second energy converter of the variator can be connected via a further planetary gear set with the first element of the third planetary gear set. The further planetary gearset may be a minus planetary gear set, in which the ring gear is fixed. The planet carrier may be permanently connected non-rotatably to the second element of the third planetary gear set. The sun gear can be permanently connected to the second energy converter in a rotationally fixed manner. If the energy converters are electrical machines, pretranslation makes it possible to use electrical machines of a smaller size.
Einer der Energiewandler oder beide kann/können koaxial zum Antrieb ausgebildet sein. Unter einer koaxialen Ausbildung des Energiewandlers zum Antrieb wird verstanden, dass die Rotationsachse des Energiewandlers mit der Rotationsachse des Antriebs beziehungsweise mit der Antriebswelle zusammenfällt. So kann ein besonders kompaktes und rotationssymmetrisches Getriebe bereitgestellt werden. Ebenso ermöglicht diese Ausgestaltung eine Anbindung des Energiewandlers an das Getriebe mit wenigen Bauteilen. Dies resultiert in einer geringen Komplexität mit geringer Fehleranfälligkeit.One of the energy converters or both may be coaxial with the drive. A coaxial design of the energy converter for the drive is understood to mean that the axis of rotation of the energy converter coincides with the axis of rotation of the drive or with the drive shaft. Thus, a particularly compact and rotationally symmetrical transmission can be provided. Likewise, this embodiment allows a connection of the energy converter to the transmission with few components. This results in a low complexity with low error rate.
Ebenso ist es möglich, dass mindestens einer der Energiewandler achsparallel zum Antrieb beziehungsweise zur Antriebswelle ausgebildet ist. Bei dieser Ausgestaltung fällt die Rotationsachse des Energiewandlers nicht mit dem Antrieb beziehungsweise der Antriebswelle zusammen, ist aber parallel zu dieser vorgesehen. Diese Ausführungsform hat den Vorteil, dass die Ausgestaltung des Energiewandlers, beispielsweise dessen Größe, recht unabhängig von der Ausbildung des sonstigen Getriebes gewählt werden kann. Sind beide Energiewandler achsparallel ausgebildet, können diese auf gegenüberliegenden Seiten des Getriebes vorgesehen sein. Bei achsparalleler Ausgestaltung können die Energiewandler über eine oder mehrere Stirnradstufen an die jeweiligen Planetenradsätze angebunden werden.It is also possible that at least one of the energy converter is formed axially parallel to the drive or to the drive shaft. In this embodiment, the axis of rotation of the energy converter does not coincide with the drive or the drive shaft, but is provided parallel to this. This embodiment has the advantage that the configuration of the energy converter, for example, its size, can be selected quite independently of the formation of the other transmission. If both energy converters are formed axially parallel, they can be provided on opposite sides of the transmission. In the case of an axially parallel configuration, the energy converters can be connected to the respective planetary gear sets via one or more spur gear stages.
Das Getriebe kann ferner ein Wendegetriebe aufweisen. Durch Vorsehen des Wendegetriebes können der erste und zweite Getriebefahrbereich sowohl in Vorwärts- als auch in Rückwärtsrichtung bereitgestellt werden. Das Wendegetriebe kann abtriebsseitig vorgesehen sein. Beispielsweise kann es mit dem zweiten Element des dritten Planetenradsatzes und dem Abtrieb des Getriebes wirkverbunden sein. Ebenso kann das Wendegetriebe antriebsseitig vorgesehen sein. Beispielsweise kann es mit dem ersten Element des ersten Planetenradsatzes, dem zweiten Element des zweiten Planetenradsatzes und dem Antrieb des Getriebes wirkverbunden sein.The transmission may further include a reverse gear. By providing the reverse gear, the first and second transmission ranges can be provided in both the forward and reverse directions. The reversing gear can be provided on the output side. For example, it may be operatively connected to the second element of the third planetary gear set and the output of the transmission. Likewise, the reversing gear can be provided on the drive side. For example, it may be operatively connected to the first element of the first planetary gear set, the second element of the second planetary gear set and the drive of the transmission.
Der erste, zweite und dritte Planetenradsatz können jeweils als Minus-Planetensatz ausgebildet sein. So wird ein einfacher und besonders kompakter Getriebeaufbau bereitgestellt. Ferner können der erste, zweite und dritte Planetenradsatz identische geometrische Abmessungen aufweisen. Beispielsweise können die Sonnen-, Planeten- und Hohlräder der Planetenradsätze identische Durchmesser aufweisen. Auch dies trägt zu einem einfachen und kompakten Getriebeaufbau bei.The first, second and third planetary gear set can each be designed as a minus planetary gear set. Thus, a simple and particularly compact gear construction is provided. Further, the first, second and third planetary gear set may have identical geometric dimensions. For example, the sun, planetary and ring gears of the planetary gear sets may have identical diameters. This also contributes to a simple and compact transmission structure.
Darüber hinaus bezieht sich die vorliegende Erfindung auf einen Antriebsstrang für eine Arbeitsmaschine mit einem leistungsverzweigten stufenlosen Getriebe gemäß einer der zuvor beschriebenen Ausführungsformen. Ebenso bezieht sich die Erfindung ferner auf eine Arbeitsmaschine mit solch einem Antriebsstrang. Die Arbeitsmaschine kann eine Landmaschine oder eine Baumaschine sein. Beispielsweise ist die Arbeitsmaschine ein Ackerschlepper oder ein Radlader.In addition, the present invention relates to a power train for a work machine with a power-split continuously variable transmission according to one of the embodiments described above. Likewise, the invention further relates to a work machine with such a drive train. The work machine may be an agricultural machine or a construction machine. For example, the work machine is a farm tractor or a wheel loader.
Figurenlistelist of figures
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1 zeigt eine schematische Ansicht eines Getriebes gemäß einer ersten Ausführungsform der vorliegenden Erfindung.1 shows a schematic view of a transmission according to a first embodiment of the present invention. -
2 zeigt eine schematische Ansicht eines Getriebes gemäß einer zweiten Ausführungsform der vorliegenden Erfindung.2 shows a schematic view of a transmission according to a second embodiment of the present invention. -
3 zeigt ein Schaltschema der Getriebe aus1-2 .3 shows a circuit diagram of the transmission1-2 , -
4 zeigt eine schematische Ansicht eines Getriebes gemäß einer dritten Ausführungsform der vorliegenden Erfindung.4 shows a schematic view of a transmission according to a third embodiment of the present invention. -
5 zeigt eine schematische Ansicht eines Getriebes gemäß einer vierten Ausführungsform der vorliegenden Erfindung.5 shows a schematic view of a transmission according to a fourth embodiment of the present invention. -
6 zeigt eine schematische Ansicht eines Getriebes gemäß einer fünften Ausführungsform der vorliegenden Erfindung.6 shows a schematic view of a transmission according to a fifth embodiment of the present invention. -
7 zeigt eine schematische Ansicht eines Getriebes gemäß einer sechsten Ausführungsform der vorliegenden Erfindung.7 shows a schematic view of a transmission according to a sixth embodiment of the present invention. -
8 zeigt eine schematische Ansicht eines Getriebes gemäß einer siebten Ausführungsform der vorliegenden Erfindung.8th shows a schematic view of a transmission according to a seventh embodiment of the present invention.
Detaillierte Beschreibung von AusführungsformenDetailed description of embodiments
Der erste 2, zweite 3 und dritte Planetenradsatz
Das Getriebe
Der erste Planetenradsatz
Wie aus
Wie aus
Das Getriebe
Ebenso umfasst das Getriebe
Das erste Schaltelement
Das Getriebe
Darüber hinaus ist das erste Element
Darüber hinaus umfasst das Getriebe
In dieser zweiten Ausführungsform ist ebenfalls das zweite Element
Auch der erste 2 und/oder dritte Planetenradsatz
Die in
Die Wendegruppe
Die in
Die in
Durch Verblockung des in
Wie aus
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Leistungsverzweigtes stufenloses GetriebePower split continuously variable transmission
- 22
- erster Planetenradsatzfirst planetary gear set
- 3, 3'3, 3 '
- zweiter Planetenradsatzsecond planetary gear set
- 44
- dritter Planetenradsatzthird planetary gear set
- 55
- erstes Element erster Planetenradsatzfirst element first planetary gear set
- 66
- zweites Element erster Planetenradsatzsecond element first planetary gear set
- 77
- drittes Element erster Planetenradsatzthird element first planetary gear set
- 8, 8'8, 8 '
- erstes Element zweiter Planetenradsatzfirst element second planetary gear set
- 9, 9'9, 9 '
- zweites Element zweiter Planetenradsatzsecond element second planetary gear set
- 10, 10'10, 10 '
- drittes Element zweiter Planetenradsatzthird element second planetary gear set
- 1111
- erstes Element dritter Planetenradsatzfirst element third planetary gear set
- 1212
- zweites Element dritter Planetenradsatzsecond element third planetary gear set
- 1313
- drittes Element dritter Planetenradsatzthird element third planetary gear set
- 1414
- Planetenrad erster PlanetenradsatzPlanetary gear first planetary gear set
- 15, 15.1', 15.2'15, 15.1 ', 15.2'
- Planetenrad zweiter PlanetenradsatzPlanetary gear second planetary gear set
- 1616
- Planetenrad dritter PlanetenradsatzPlanet wheel third planetary gear set
- 1717
- Getriebeeingangtransmission input
- 1818
- Antriebswelledrive shaft
- 1919
- Getriebeausgangtransmission output
- 2020
- ZapfwellePTO
- 2121
- erste Hohlwellefirst hollow shaft
- 2222
- erstes Verbindungselementfirst connecting element
- 2323
- zweite Hohlwellesecond hollow shaft
- 2424
- Gehäusecasing
- 2626
- dritte Hohlwellethird hollow shaft
- 2727
- zweites Verbindungselementsecond connecting element
- 2828
- drittes Verbindungselementthird connecting element
- 2929
- Abtrieboutput
- 30, 30'30, 30 '
- erster Energiewandlerfirst energy converter
- 31, 31'31, 31 '
- zweiter Energiewandlersecond energy converter
- 32, 32'32, 32 '
- Rotor erster EnergiewandlerRotor first energy converter
- 33, 33'33, 33 '
- Rotor zweiter EnergiewandlerRotor second energy converter
- 34, 34'34, 34 '
- Stator erster EnergiewandlerStator first energy converter
- 35, 35'35, 35 '
- Stator zweiter EnergiewandlerStator second energy converter
- 36, 3736, 37
- Rotorverbindungrotor connection
- B1B1
- Bremsebrake
- K1 K1
- Kupplungclutch
- FB1, FB2FB1, FB2
- Fahrbereichedriving ranges
- 5050
- Wendegruppeturning group
- 5151
- Abtriebswelleoutput shaft
- 52, 5552, 55
- Stirnradstufespur gear
- 53, 5753, 57
- Festradfixed gear
- 54, 5854, 58
- LosradLosrad
- 5656
- Zwischenradidler
- W1, W2W1, W2
- Kupplungclutch
- 6060
- Planetenradsatzplanetary gear
- 6161
- Planetenträgerplanet carrier
- 6262
- Hohlradring gear
- 6363
- Gehäusecasing
- 6464
- Sonnenradsun
- 70, 8070, 80
- Wendegruppeturning group
- 71, 8171, 81
- Sonnenradsun
- 72, 8272, 82
- Planetenträgerplanet carrier
- 73, 8373, 83
- Hohlradring gear
- 74, 8474, 84
- viertes Verbindungelementfourth connection element
- 75, 8575, 85
- Gehäusecasing
- 76, 8676, 86
- vierte Hohlwellefourth hollow shaft
- 87.1, 87.287.1, 87.2
- Planetenradplanet
- B70, B80B70, B80
- Bremsebrake
- K70, K80K70, K80
- Kupplungclutch
- 90, 9190, 91
- Rotorwellerotor shaft
- 92,9392.93
- Gehäusecasing
- 94, 9594, 95
- Festradfixed gear
- 96, 9896, 98
- Festradfixed gear
- 9797
- Zwischenwelleintermediate shaft
- 99, 10099, 100
- Festradfixed gear
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102010029866 A1 [0002]DE 102010029866 A1 [0002]
- DE 102015105358 A1 [0002]DE 102015105358 A1 [0002]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018201751.4A DE102018201751A1 (en) | 2018-02-05 | 2018-02-05 | Power split continuously variable transmission with two driving ranges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018201751.4A DE102018201751A1 (en) | 2018-02-05 | 2018-02-05 | Power split continuously variable transmission with two driving ranges |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102018201751A1 true DE102018201751A1 (en) | 2019-08-08 |
Family
ID=67308787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018201751.4A Withdrawn DE102018201751A1 (en) | 2018-02-05 | 2018-02-05 | Power split continuously variable transmission with two driving ranges |
Country Status (1)
Country | Link |
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DE (1) | DE102018201751A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006049547A1 (en) * | 2005-10-21 | 2007-05-31 | GM Global Technology Operations, Inc., Detroit | Hybrid architecture with three motor / generators and a planetary gear arrangement with a fixed element |
US20070129204A1 (en) * | 2005-12-02 | 2007-06-07 | Bucknor Norman K | Electrically variable transmission having three planetary gear sets with three interconnections |
DE102010029866A1 (en) | 2010-06-09 | 2011-12-15 | Zf Friedrichshafen Ag | Continuous power-split transmission for use in drive train of tractor, has planetary gear device comprising three shafts formed as planetary carriers, ring gears and sun wheel, respectively |
DE102015105358A1 (en) | 2015-04-09 | 2016-10-13 | Claas Industrietechnik Gmbh | Hydromechanical transmission |
-
2018
- 2018-02-05 DE DE102018201751.4A patent/DE102018201751A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006049547A1 (en) * | 2005-10-21 | 2007-05-31 | GM Global Technology Operations, Inc., Detroit | Hybrid architecture with three motor / generators and a planetary gear arrangement with a fixed element |
US20070129204A1 (en) * | 2005-12-02 | 2007-06-07 | Bucknor Norman K | Electrically variable transmission having three planetary gear sets with three interconnections |
DE102010029866A1 (en) | 2010-06-09 | 2011-12-15 | Zf Friedrichshafen Ag | Continuous power-split transmission for use in drive train of tractor, has planetary gear device comprising three shafts formed as planetary carriers, ring gears and sun wheel, respectively |
DE102015105358A1 (en) | 2015-04-09 | 2016-10-13 | Claas Industrietechnik Gmbh | Hydromechanical transmission |
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Legal Events
Date | Code | Title | Description |
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R163 | Identified publications notified | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |