WO2004010026A1 - Multi-clutch gearbox - Google Patents

Multi-clutch gearbox Download PDF

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Publication number
WO2004010026A1
WO2004010026A1 PCT/EP2003/007707 EP0307707W WO2004010026A1 WO 2004010026 A1 WO2004010026 A1 WO 2004010026A1 EP 0307707 W EP0307707 W EP 0307707W WO 2004010026 A1 WO2004010026 A1 WO 2004010026A1
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WO
WIPO (PCT)
Prior art keywords
gear
components
partial
partial transmissions
transmissions
Prior art date
Application number
PCT/EP2003/007707
Other languages
German (de)
French (fr)
Inventor
Wolfgang Rebholz
Michael Herlitzek
Bernd Schulze
Original Assignee
Zf Friedrichshafen 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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2004010026A1 publication Critical patent/WO2004010026A1/en

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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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • F16H2003/0936—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts with multiple countershafts comprising only two idle gears and one gear fixed to the countershaft
    • 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
    • F16H57/00—General details of gearing
    • F16H2057/005—Mounting preassembled units, i.e. using pre-mounted structures to speed up final mounting process
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • 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
    • F16H61/68—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 specially adapted for stepped gearings
    • F16H61/684—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 specially adapted for stepped gearings without interruption of drive
    • F16H61/688—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 specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches

Definitions

  • the present invention relates to a multiple clutch transmission for a motor vehicle according to the preamble of claim 1.
  • a double clutch transmission essentially consists of two strands or partial transmissions with different ones
  • Gear pairs two powershift clutches each assigned to a partial transmission, an input shaft and an output shaft and, depending on the number of gears, made of positive, synchronized or unsynchronized clutches.
  • the gears are arranged alternately in the two sub-transmissions, so that it is possible to preselect a gear in the load-free sub-transmission while the torque is transmitted from the other sub-transmission.
  • a gear shift is realized by transferring the torque to be transmitted from one clutch to the other, so that the gears can be shifted without load and without interruption of tractive power and without tensioning the shiftable gears.
  • the present invention has for its object to provide a multiple clutch transmission for a motor vehicle, which has a simple structure and enables inexpensive manufacture.
  • the multiple clutch transmission according to the invention should have the smallest possible number of different components.
  • a multiple clutch transmission for a motor vehicle comprising at least two partial transmissions with shafts, shifting elements and wheels, a drive wheel and at least one driven wheel, the partial transmissions with a common drive shaft being able to bring power shift clutches assigned to the partial transmissions into motion and each defining at least one transmission branch, where completely or partially identical components are used for the gearbox branches corresponding to the sub-transmissions.
  • completely or partially identical gear assemblies are connected downstream or upstream of the power shift clutches.
  • the gear train consist of the multi-clutch transmission of identical components, which p.osi- tive effect on the manufacturing costs'.
  • the transmission branches assigned to the partial transmissions share components, for example shafts and / or wheels, so that the number of components is advantageously reduced with the same functionality.
  • the components that connect the partial transmissions to the drive wheel and / or the at least one driven wheel are of this type. formed that the required step change in transmission between the transmission branches is realized with identical activated components of the transmission branches corresponding to the partial transmissions. In this way, the gear ratios corresponding to the needs are achieved with the translations of the partial transmissions.
  • Figure 1 is a schematic view of a first embodiment of a transmission according to the invention.
  • FIG. 2 shows a schematic view of a second embodiment of a transmission according to the invention
  • Fig. 3 is a schematic view of a third embodiment of a transmission according to the present invention
  • Fig. 4 is a schematic view of a fourth embodiment of a transmission according to the present invention7
  • a double clutch transmission is shown, which contains two absolutely identical sub-transmissions 1, 2; in the figure, the identical partial transmissions are highlighted by a border.
  • the partial transmissions 1, 2 contain shafts 11, wheels 12 and shifting elements S1A, S2A, S3A, SIA and SIIA or S1B, S2B, S3B, SIB and SIIB, the combinations of which result in different gear ratios, the same combination S1, S2 / S3, SI , SII in branch A causes the same translation as in branch B.
  • a drive wheel 3 is provided, which with the . the powershift clutches A, B assigned to the partial transmissions is connected via the wheels 6 and 7, respectively.
  • the wheel 6 connected to the powershift clutch A has a different number of teeth than the wheel 7 connected to the powershift clutch B, so that if the same elements are activated in the partial transmissions 1, 2, the gear shift required is solely due to the difference in the wheels 6 and 7 is realized.
  • An intermediate shaft 13 with a switching element KR can be provided for shifting the reverse gear.
  • Partial transmissions with corresponding powershift clutches can be provided, so that a multiple clutch transmission with identical partial transmissions is created.
  • Dual clutch transmission shown according to the invention comprises two identical partial transmissions " 1, 2.
  • a difference to that of the embodiment 1 underlying concept is that in addition to the driven wheel 4, a further driven wheel 5 and the output shaft 8 are shared by the sub-transmissions.
  • FIG. 3 A variant of the embodiment from FIG. 1 is shown in FIG. 3.
  • the wheels used for the transmission branches are identical in both embodiments. However, the components required can be reduced by arranging the components of the partial transmission 1, in particular the shifting elements SIA and S2A, and sharing the shaft 9 with the wheel 10 arranged thereon.
  • FIG. 4 Another variant of the embodiment from FIG. 1 is shown in FIG. 4.
  • the same components are used for both sub-transmissions or gear branches 1, 2, a part of these components being shared by the gear branches 1, 2.
  • the shafts 9 and 14 and the gearwheel 10 connected to the output shaft are shared.
  • the gears 6 and 7, which connect the powershift clutches A and B to the common drive wheel 3 are designed differently in terms of the number of teeth, so that the required gear jump is achieved exclusively by the difference between wheels 6 and 7, with otherwise identical components.
  • individual wheel sets differ in the otherwise identical partial transmissions, in order to increase the flexibility with regard to the translations to be achieved in this way.
  • one or both sub-transmissions can additionally be provided with one or more wheel sets, which need not be identical.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

Disclosed is a multi-clutch gearbox for a motor vehicle, containing at least two partial gear mechanisms (1,2) with shafts (9, 11, 14), shift elements (SAI, SAII, SA1, SA2, SA3, SBI, SBII, SB1, SB2, SB3) and gear wheels (10, 12), a drive wheel (3) and at least one driven wheel (4, 5), whereby the partial gear mechanisms (1, 2) can be placed in the force flow with a common drive shaft with the aid of power-shift clutch mechanisms (A,B) associated with the partial gear mechanisms (1,2) and which respectively define at least one gear branch. Identical components are partially or fully used for the gear branches corresponding to the partial gear mechanisms (1,2). The components (6,7) which connect the partial gear mechanisms (1,2) to the drive wheel (3) and/or the at least one driven wheel (4,5) are configured in such a way that the required step-up leap between the gear branches is performed for identical activated components of the gear branches corresponding to the partial gear mechanisms (1,2).

Description

Mehrfachkupplungsgetriebe Multiple clutch transmission
Die vorliegende Erfindung betrifft ein Mehrfachkupp- lungsgetriebe für ein Kraftfahrzeug gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a multiple clutch transmission for a motor vehicle according to the preamble of claim 1.
Mehrfachkupplungsgetriebe, insbesondere in der Form von Doppelkupplungsgetrieben sind aus der Fahrzeugtechnik bekannt, beispielsweise aus der EP 0 969 225, welche einMultiple clutch transmissions, in particular in the form of double clutch transmissions, are known from vehicle technology, for example from EP 0 969 225, which a
Doppelvorgelegewellengetriebe mit einer Doppelkupplung beschreibt.Describes double countershaft transmission with a double clutch.
Im wesentlichen besteht ein- Doppelkupplungsgetriebe aus zwei Strängen bzw. Teilgetrieben mit verschiedenenA double clutch transmission essentially consists of two strands or partial transmissions with different ones
Zahnradpaaren, zwei Lastschaltkupplungen die jeweils einem Teilgetriebe zugeordnet sind, einer Antriebswelle und einer Abtriebswelle sowie je nach Gangzahl aus formschlüssigen, synchronisierten oder unsynchronisierten Schaltkupplungen. Hierbei sind die Gänge abwechselnd in den zwei Teilgetrieben angeordnet, so dass es möglich ist, einen Gang im lastfreien Teilgetriebe vorzuwählen, während das Drehmoment vom anderen Teilgetriebe übertragen wird. Eine Gängschaltung wird realisiert, indem das zu übertragende Drehmoment von der einen Kupplung an die andere übergeben wird, so dass die Gänge lastfrei und ohne Zugkraftunterbrechung sowie ohne Verspannung der -schaltbaren Gänge geschaltet werden können.Gear pairs, two powershift clutches each assigned to a partial transmission, an input shaft and an output shaft and, depending on the number of gears, made of positive, synchronized or unsynchronized clutches. Here, the gears are arranged alternately in the two sub-transmissions, so that it is possible to preselect a gear in the load-free sub-transmission while the torque is transmitted from the other sub-transmission. A gear shift is realized by transferring the torque to be transmitted from one clutch to the other, so that the gears can be shifted without load and without interruption of tractive power and without tensioning the shiftable gears.
Bei den bekannten Mehrfachkupplungsgetrieben werden die unterschiedlichen Übersetzungen durch entsprechende Radpaare in den der jeweiligen. Lastschaltkupplung nachgeschalteten Getriebebaugruppen realisiert, was eine große Zahl unterschiedlich dimensionierter Zahnräder zur Folge hat.In the known multiple clutch transmissions, the different ratios are matched by corresponding wheel pairs in the respective. Powershift clutch downstream transmission assemblies realized what a big Number of differently dimensioned gears.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Mehrfachkupplungsgetriebe für ein Kraftfahrzeug anzugeben, welches einen einfachen Aufbau aufweist und eine kostengünstige Herstellung ermöglicht.The present invention has for its object to provide a multiple clutch transmission for a motor vehicle, which has a simple structure and enables inexpensive manufacture.
Insbesondere soll das erfindungsgemäße Mehrfachkupp- lungsgetriebe eine möglichst geringe Anzahl unterschiedlicher Bauteile aufweisen.In particular, the multiple clutch transmission according to the invention should have the smallest possible number of different components.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere Ausgestaltungen und Vorteile ge- hen aus den ünteransprüchen hervor.This object is achieved by the features of patent claim 1. Further designs and advantages emerge from the subordinate claims.
Demnach wird ein Mehrfachkupplungsgetriebe für ein Kraftfahrzeug, enthaltend mindestens zwei Teilgetriebe mit Wellen, Schaltelementen und Rädern, ein Antriebsrad und mindestens ein Abtriebsrad vorgeschlagen, wobei die Teilgetriebe mit einer gemeinsamen Antriebswelle über den Teilgetrieben zugeordnete Lastschaltkupplungen in Kraftfluss bringbar sind und jeweils mindestens einen Getriebezweig definieren, wobei für die den Teilgetrieben entsprechenden Getriebezweige ganz oder teilweise identische Bauteile eingesetzt werden. Es werden also den Lastschaltkupplungen jeweils ganz oder teilweise identische Getriebebaugruppen nach- oder vorgeschaltet.Accordingly, a multiple clutch transmission for a motor vehicle is proposed, comprising at least two partial transmissions with shafts, shifting elements and wheels, a drive wheel and at least one driven wheel, the partial transmissions with a common drive shaft being able to bring power shift clutches assigned to the partial transmissions into motion and each defining at least one transmission branch, where completely or partially identical components are used for the gearbox branches corresponding to the sub-transmissions. In other words, completely or partially identical gear assemblies are connected downstream or upstream of the power shift clutches.
Im Rahmen einer bevorzugten Ausführungsform bestehen die Teilgetriebe des Mehrfachkupplungsgetriebes aus identischen Bauteilen, was sich auf die Herstellungskosten p.osi- tiv auswirkt'. Eine Weiterbildung der Erfindung sieht vor, dass die den Teilgetrieben zugeordnete Getriebezweige Bauteile, beispielsweise Wellen und/oder Räder, gemeinsam benutzen, so dass die Anzahl der Bauteile bei gleicher Funktionalität in vorteilhafter Weise reduziert wird.In a preferred embodiment, the gear train consist of the multi-clutch transmission of identical components, which p.osi- tive effect on the manufacturing costs'. A further development of the invention provides that the transmission branches assigned to the partial transmissions share components, for example shafts and / or wheels, so that the number of components is advantageously reduced with the same functionality.
Hierbei sind die Bauteile, welche die Teilgetriebe mit dem Antriebsrad und/oder dem mindestens einen Abtriebsrad verbinden, derart. ausgebildet, dass der erforderliche Übersetzungssprung zwischen den Getriebezweigen bei identischen aktivierten Bauteilen der den Teilgetrieben entsprechenden Getriebezweige realisiert wird. Auf diese Weise wird mit den Übersetzungen der Teilgetriebe eine den Bedürfnissen entsprechende Gangabstufung erzielt.Here, the components that connect the partial transmissions to the drive wheel and / or the at least one driven wheel are of this type. formed that the required step change in transmission between the transmission branches is realized with identical activated components of the transmission branches corresponding to the partial transmissions. In this way, the gear ratios corresponding to the needs are achieved with the translations of the partial transmissions.
Die Erfindung wird im folgenden anhand der beigefügten Figuren am Beispiel eines Doppelkupplungsgetriebes näher erläutert. Es stellen dar:The invention is explained below with reference to the accompanying figures using the example of a double clutch transmission. They represent:
Fig. 1 eine schematische Ansicht einer ersten Ausführungsform eines erfindungsgemäßen Getriebes;Figure 1 is a schematic view of a first embodiment of a transmission according to the invention.
Fig. 2 eine schematische Ansicht einer zweiten Aus- führungsform eines erfindungsgemäßen Getriebes;2 shows a schematic view of a second embodiment of a transmission according to the invention;
Fig. 3 eine schematische Ansicht einer dritten Ausführungsform eines Getriebes gemäß der vorliegenden Erfindung und Fig. 4 eine schematische Ansicht einer vierten Ausführungsform eines Getriebes gemäß der vorliegenden Erfindung7 In Fig. 1 ist ein Doppelkupplungsgetriebe gezeigt, welches zwei absolut identische Teilgetriebe 1, 2 enthält; in der Figur sind die identischen Teilgetriebe durch Umrandung hervorgehoben. Die Teilgetriebe 1, 2 enthalten Wellen 11, Räder 12 und Schaltelemente S1A, S2A, S3A, SIA und SIIA bzw. S1B, S2B, S3B, SIB und SIIB, deren Kombinationen unterschiedliche Übersetzungsverhältnisse bewirken, wobei gleiche Kombination Sl, S2/ S3, SI, SII im Zweig A die gleiche Übersetzung wie im Zweig B bewirkt.Fig. 3 is a schematic view of a third embodiment of a transmission according to the present invention and Fig. 4 is a schematic view of a fourth embodiment of a transmission according to the present invention7 In Fig. 1, a double clutch transmission is shown, which contains two absolutely identical sub-transmissions 1, 2; in the figure, the identical partial transmissions are highlighted by a border. The partial transmissions 1, 2 contain shafts 11, wheels 12 and shifting elements S1A, S2A, S3A, SIA and SIIA or S1B, S2B, S3B, SIB and SIIB, the combinations of which result in different gear ratios, the same combination S1, S2 / S3, SI , SII in branch A causes the same translation as in branch B.
Des weiteren ist ein Antriebsrad 3 vorgesehen, welches mit den. den Teilgetrieben zugeordneten Lastschaltkupplungen A, B über die Räder 6 bzw. 7 verbunden ist. Das mit der Lastschaltkupplung A verbundene Rad 6 weist erfindungsgemäß eine andere Zähnezahl auf, als das mit der Lastschaltkupplung B verbundene Rad 7, so dass, wenn gleiche Elemente in den Teilgetrieben 1, 2 aktiviert sind, der benötigte Gangsprung ausschließlich durch den Unterschied der Räder 6 und 7 realisiert wird. Zum Schalten des Rückwärtsganges kann eine Zwischenwelle 13 mit einem Schaltelement KR vorgesehen sein.Furthermore, a drive wheel 3 is provided, which with the . the powershift clutches A, B assigned to the partial transmissions is connected via the wheels 6 and 7, respectively. According to the invention, the wheel 6 connected to the powershift clutch A has a different number of teeth than the wheel 7 connected to the powershift clutch B, so that if the same elements are activated in the partial transmissions 1, 2, the gear shift required is solely due to the difference in the wheels 6 and 7 is realized. An intermediate shaft 13 with a switching element KR can be provided for shifting the reverse gear.
Wie aus Fig. 1 ersichtlich, wird das einzige vorgesehene Abtriebsrad 4 von beiden Teilgetrieben 1, 2 beauf- schlagt. Gemäß der Erfindung können weitere identischeAs can be seen from FIG. 1, the only provided output gear 4 is acted upon by both sub-transmissions 1, 2. According to the invention, other identical ones
Teilgetriebe mit entsprechenden Lastschaltkupplungen vorgesehen sein, so dass ein Mehrfachkupplungsgetriebe mit identischen Teilgetrieben entsteht.Partial transmissions with corresponding powershift clutches can be provided, so that a multiple clutch transmission with identical partial transmissions is created.
In Fig. 2 ist ein zweites Ausführungsbeispiel eines2 is a second embodiment of a
Doppelkupplungsgetriebes gemäß der Erfindung gezeigt; hierbei umfasst das Doppelkupplungsgetriebe zwei identische Teilgetriebe "1, 2. Ein Unterschied zu der der Ausführungs- form nach Fig. 1 zugrundeliegenden Konzeption besteht darin, dass neben dem Abtriebsrad 4 ein weiteres Abtriebsrad 5 sowie die Abtriebswelle 8 von den Teilgetrieben gemeinsam genutzt werden.Dual clutch transmission shown according to the invention; Here, the double clutch transmission comprises two identical partial transmissions " 1, 2. A difference to that of the embodiment 1 underlying concept is that in addition to the driven wheel 4, a further driven wheel 5 and the output shaft 8 are shared by the sub-transmissions.
In Fig. 3 ist eine Variante der Ausführungsform aus Fig. 1 gezeigt. Hierbei sind die verwendeten Räder für die Getriebezweige bei beiden Ausführungsformen identisch. Durch eine andere Anordnung der Bauteile des Teilgetrie- bes 1, insbesondere der Schaltelemente SIA und S2A, und die gemeinsame Nutzung der Welle 9 mit dem darauf angeordneten Rad 10 können jedoch die benötigten Bauteile reduziert werden.A variant of the embodiment from FIG. 1 is shown in FIG. 3. The wheels used for the transmission branches are identical in both embodiments. However, the components required can be reduced by arranging the components of the partial transmission 1, in particular the shifting elements SIA and S2A, and sharing the shaft 9 with the wheel 10 arranged thereon.
Eine weitere Variante der Ausführungsform aus Fig. 1 ist in Fig. 4 dargestellt. Hierbei werden für beide Teilgetriebe bzw. Getriebezweige 1, 2 gleiche Bauteile verwendet, wobei ein Teil dieser Bauteile von den Getriebezweigen 1, 2 gemeinsam genutzt werden.Another variant of the embodiment from FIG. 1 is shown in FIG. 4. Here, the same components are used for both sub-transmissions or gear branches 1, 2, a part of these components being shared by the gear branches 1, 2.
Erfindungsgemäß ist eine gemeinsame Nutzung der Wellen 9 und 14 sowie des mit der Abtriebswelle verbundenen Zahnrades 10 vorgesehen. Gemäß der Erfindung sind in diesem Fall, wie auch bei den Getrieben nach den Fig. 1, 2 und 3, die Zahnräder 6 und 7, welche die Lastschaltkupplungen A bzw. B mit dem gemeinsamen Antriebsrad 3 verbinden, hinsichtlich der Zähnezahl unterschiedlich ausgebildet, so dass der benötigte Gangsprung ausschließlich durch den Unterschied der Räder 6 und 7 realisiert wird, bei ansonsten gleichen Bauteilen. Im Rahmen einer vorteilhaften Weiterbildung der Erfindung kann vorgesehen sein, dass sich einzelne Radsätze in den ansonsten identischen Teilgetrieben unterscheiden, um auf diese Weise die Flexibilität hinsichtlich der zu erzielenden Übersetzungen zu erhöhen. Alternativ dazu können eines oder beide Teilgetriebe zusätzlich mit einem oder mehreren Radsätzen versehen werden, wobei diese nicht identisch sein müssen. According to the invention, the shafts 9 and 14 and the gearwheel 10 connected to the output shaft are shared. According to the invention, in this case, as in the transmissions according to FIGS. 1, 2 and 3, the gears 6 and 7, which connect the powershift clutches A and B to the common drive wheel 3, are designed differently in terms of the number of teeth, so that the required gear jump is achieved exclusively by the difference between wheels 6 and 7, with otherwise identical components. In the context of an advantageous development of the invention, it can be provided that individual wheel sets differ in the otherwise identical partial transmissions, in order to increase the flexibility with regard to the translations to be achieved in this way. As an alternative to this, one or both sub-transmissions can additionally be provided with one or more wheel sets, which need not be identical.
Bezugszeichenreference numeral
1 Teilgetriebe1 partial transmission
2 Teilgetriebe2 gearboxes
3 Antriebsrad3 drive wheel
4 Abtriebsrad4 driven wheel
5 Abtriebsrad5 driven gear
6 Zahnrad6 gear
7 Zahnrad7 gear
8 Abtriebswelle8 output shaft
9 Welle9 wave
10 Zahnrad10 gear
11 Welle11 wave
12 Zahnrad12 gear
13 Zwischenwelle13 intermediate shaft
14 Welle14 wave
A Lastschaltkupplung B LastschaltkupplungA Powershift clutch B Powershift clutch
KR Schaltelement für RückwärtsgangKR shifting element for reverse gear
SAI KupplungSAI clutch
SAH KupplungSAH clutch
SAI Kupplung SA2 KupplungSAI clutch SA2 clutch
SA3 KupplungSA3 clutch
SBI KupplungSBI clutch
SBII KupplungSBII clutch
SBI Kupplung SB2 KupplungSBI clutch SB2 clutch
SB3 Kupplung SB3 clutch

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Mehrfachkupplungsgetriebe für ein Kraftfahrzeug, enthaltend mindestens zwei Teilgetriebe (1, 2) mit Wellen (9, 11, 14), Schaltelementen (SAI, SAH,- SAI, SA2, SA3, SBI, SBII, SBI, SB2, SB3) und Rädern (10, 12), ein Antriebsrad (3) und mindestens ein Abtriebsrad (4, 5), wobei die Teilgetriebe (1, 2) -mit dem gemeinsamen Antriebsrad (3) über den Teilgetrieben (1, 2) zugeordnete Lastschaltkupplungen (A, B) in Kraftfluss bringbar sind und jeweils mindestens einen Getriebezweig definieren, dadurch g e k e n n z e i c h n e t , dass für die den Teilgetrieben (1, 2) entsprechenden Getriebezweige ganz oder teilwei- se identische Bauteile eingesetzt werden, wobei die Bauteile (6, 7), welche die Teilgetriebe (1, 2) mit dem Antriebsrad (3) verbinden, derart ausgebildet sind, dass der erforderliche Übersetzungssprung zwischen den Getriebezweigen bei identischen aktivierten Bauteilen der den Teilgetrie- ben (1, 2) entsprechenden Getriebezweige realisiert wird.1. Multiple clutch transmission for a motor vehicle, comprising at least two partial transmissions (1, 2) with shafts (9, 11, 14), switching elements (SAI, SAH, - SAI, SA2, SA3, SBI, SBII, SBI, SB2, SB3) and Wheels (10, 12), a drive wheel (3) and at least one driven wheel (4, 5), the partial transmissions (1, 2) - with the common drive wheel (3) via the partial transmissions (1, 2) associated power shift clutches (A , B) can be brought into power flow and each define at least one gear branch, characterized in that completely or partially identical components are used for the gear branches corresponding to the partial gears (1, 2), the components (6, 7) which the Connect the partial gears (1, 2) to the drive wheel (3), designed in such a way that the required step change in gear ratio between the gear branches is achieved with identical activated components of the gear branches corresponding to the partial gears (1, 2).
2. Mehrfachkupplungsgetriebe nach Anspruch 1, dadurch g e k e n n z e i c h n e t , dass die Teilgetriebe (1, 2) aus identischen Bauteilen bestehen.2. Multiple clutch transmission according to claim 1, characterized in that the partial transmissions (1, 2) consist of identical components.
3. Mehrfachkupplungsgetriebe nach Anspruch 1, dadurch g e k e n n z e i c hn e t , dass für die den Teilgetrieben (1, 2) entsprechenden Getriebezweige gemeinsame Bauteile (9, 10, 14) vorgesehen sind, so dass die Anzahl der Bauteile des Getriebes reduziert wird. 3. A multiple clutch transmission according to claim 1, characterized in that common components (9, 10, 14) are provided for the transmission branches corresponding to the partial transmissions (1, 2), so that the number of components of the transmission is reduced.
4. Mehrfachkupplungsgetriebe nach Anspruch 2, dadurch g e k e n n z e i c h n e t , dass das Antriebsrad (3) mit den den Teilgetrieben (1, 2) zugeordneten Lastschaltkupplungen (A, B) über Zahnräder (6) bzw. (7) verbunden ist, wobei das mit der Lastschaltkupplung (A) verbundene Rad (6) eine andere Zähnezahl aufweist, als das mit der Lastschaltkupplung (B) verbundene Rad (7) , so dass, wenn gleiche Bauteile in den Teilgetrieben (1, 2) aktiviert •sind, der benötigte Gangsprung durch den Unterschied der. Räder (6) und (7) realisiert wird.4. Multiple clutch transmission according to claim 2, characterized in that the drive wheel (3) with the partial transmissions (1, 2) associated power shift clutches (A, B) via gears (6) or (7) is connected, the power shift clutch (A) connected wheel (6) has a different number of teeth than the wheel (7) connected to the powershift clutch (B), so that when the same components are activated in the partial transmissions (1, 2), the gear shift required by the Difference of. Wheels (6) and (7) is realized.
5. Mehrfachkupplungsgetriebe nach Anspruch 4, dadurch g e k e n n z e i c h n e t , dass zum Schalten des Rückwärtsganges eine Zwischenwelle (13) mit einem Schaltele- ment (KR) vorgesehen ist. 5. Multiple clutch transmission according to claim 4, characterized in that an intermediate shaft (13) with a shift element (KR) is provided for shifting the reverse gear.
PCT/EP2003/007707 2002-07-19 2003-07-16 Multi-clutch gearbox WO2004010026A1 (en)

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DE2002132830 DE10232830A1 (en) 2002-07-19 2002-07-19 Multiple clutch transmission
DE10232830.7 2002-07-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8429992B2 (en) 2005-02-10 2013-04-30 Borgwarner Inc. Power flow configuration for dual clutch transmission mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2875567B1 (en) * 2004-09-23 2008-06-20 Antonov Automotive Europ DOUBLE CLUTCH GEARBOX, IN PARTICULAR FOR MOTOR VEHICLES
DE102006043046B4 (en) * 2006-09-14 2017-02-02 Zf Friedrichshafen Ag Double clutch

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Publication number Priority date Publication date Assignee Title
DE3621545A1 (en) * 1986-06-27 1988-01-28 Tropp Axel Dipl Ing Fh Double clutch gear box for vehicles - has gear levels divided between two input shafts selectable by separate clutch units
US5249475A (en) * 1992-08-31 1993-10-05 Deere & Company Eight- to sixteen-speed powershift transmission
EP0797025A1 (en) * 1996-03-21 1997-09-24 LANDINI SpA Under-load change-speed gear unit with double clutch
DE19911027A1 (en) * 1999-03-12 2000-09-28 Bosch Gmbh Robert Multi-speed manual transmission for a motor vehicle with a double clutch

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Publication number Priority date Publication date Assignee Title
EP0969225A3 (en) * 1998-07-03 2000-05-24 Renault Twin-countershaft transmission with two input clutches

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3621545A1 (en) * 1986-06-27 1988-01-28 Tropp Axel Dipl Ing Fh Double clutch gear box for vehicles - has gear levels divided between two input shafts selectable by separate clutch units
US5249475A (en) * 1992-08-31 1993-10-05 Deere & Company Eight- to sixteen-speed powershift transmission
EP0797025A1 (en) * 1996-03-21 1997-09-24 LANDINI SpA Under-load change-speed gear unit with double clutch
DE19911027A1 (en) * 1999-03-12 2000-09-28 Bosch Gmbh Robert Multi-speed manual transmission for a motor vehicle with a double clutch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8429992B2 (en) 2005-02-10 2013-04-30 Borgwarner Inc. Power flow configuration for dual clutch transmission mechanism
US8844391B2 (en) 2005-02-10 2014-09-30 Borgwarner Inc. Power flow configuration for dual clutch transmission mechanism

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