WO2011110253A1 - Hybrid transmission - Google Patents

Hybrid transmission Download PDF

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Publication number
WO2011110253A1
WO2011110253A1 PCT/EP2010/070393 EP2010070393W WO2011110253A1 WO 2011110253 A1 WO2011110253 A1 WO 2011110253A1 EP 2010070393 W EP2010070393 W EP 2010070393W WO 2011110253 A1 WO2011110253 A1 WO 2011110253A1
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WO
WIPO (PCT)
Prior art keywords
electric machine
hybrid transmission
phase
power electronics
construction
Prior art date
Application number
PCT/EP2010/070393
Other languages
German (de)
French (fr)
Inventor
Stephan Scharr
Timo Wehlen
Wolfgang Schoen
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 WO2011110253A1 publication Critical patent/WO2011110253A1/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
    • 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
    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0006—Electronic control units for transmission control, e.g. connectors, casings or circuit boards
    • 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
    • B60K6/22—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 characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—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 characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B60K6/405—Housings
    • 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
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/61—Arrangements of controllers for electric machines, e.g. inverters
    • 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
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes

Definitions

  • the present invention relates to a hybrid transmission for a vehicle, in particular for a motor vehicle, with a transmission housing according to the closer defined in the preamble of claim 1.
  • a hybrid transmission with a transmission housing is known that the input side has a bell-shaped housing portion in which an electric machine is arranged.
  • the electric machine is used to feed drive energy into a torque path of the hybrid transmission or to remove mechanical energy from a torque path of the hybrid transmission and convert it into electrical energy.
  • An electrical control / regulating device for controlling or regulating the electric machine is arranged in a radial outer region of the bell-shaped housing section. This arrangement requires disadvantageously additional space at the outer region of the transmission housing. Due to the special design, integration with existing vehicle concepts is made difficult or impossible.
  • the present invention is based on the object to propose a hybrid transmission of the type described above, in which the power electronics or the control and / or regulating device of the electric machine is arranged such that the arrangement is adapted to existing transmission concepts and no additional space is required ,
  • a hybrid transmission for a vehicle with a transmission housing in which at least one electric machine is arranged, which is connected to an associated power electronics or control and / or regulation. is coupled, wherein the power electronics is housed in a cover construction or the like of the transmission housing and is connected via a phase interface or the like with the electric machine for driving the same.
  • the cover construction can combine several functions in one component, because the cover construction on the one hand forms the main body of the electronic structure and on the other hand the support for the electronic components, in particular the power electronics or the like.
  • the cover construction By adapting the cover construction to the gear housing, the electronic components of the power electronics are arranged in a closed gear installation space and are protected against environmental influences due to the guarantee of the sealing function.
  • a further function can be realized in the hybrid transmission by the cover construction by at least one cooling channel or the like is integrated into the cover construction.
  • the mass of the lid construction can be selectively used as a heat sink, in particular for the integrated electronic components, because the resulting heat is absorbed by the lid construction and can be removed through the cooling channel in an advantageous manner.
  • the various electronic components of the power electronics it is possible for the various electronic components of the power electronics to be cooled via the cover construction as a heat sink or individual components to be integrated directly into the coolant flow.
  • a phase plug connection or the like is provided as a phase interface.
  • phase interface of the electrical machine can be contacted directly and secured, for example by the subsequent screwing of the lid by only one mating process during assembly of the electronic components having the deck construction.
  • a pre-assembly concept is realized in the hybrid transmission according to the invention in an advantageous manner.
  • the maintenance of the power electronics or the control and / or regulating device of the electric machine is considerably simplified by the construction according to the invention.
  • the phase plug connection may be e.g. comprise two corresponding phase plug, wherein a first phase plug on the lid construction and a second phase plug are provided on the electric machine as a phase interface.
  • phase connections can be used, which realize a direct as simple as possible phase interface between the power electronics and the electric machine.
  • Tycostecker or the like can be used as a phase connector.
  • the cover construction may preferably be releasably secured axially in the region of the transmission bell of the transmission housing, for example radially below the electric machine, next to the oil sump.
  • the cover structure can be fitted into the transmission housing wall in this area and be held by screws or other fastening means preferably releasably attached to the transmission housing.
  • Figure 1 is a schematic sectional view of a transmission housing of a possible embodiment of a hybrid transmission according to the invention; and FIG. 2 shows an enlarged, partial sectional view along the section line A - A according to FIG. 1.
  • FIGs 1 and 2 a possible embodiment of a hybrid transmission for a vehicle, in particular for a motor vehicle, with a transmission housing 1 is shown only schematically.
  • the transmission housing 1 comprises an area for the basic transmission 12 and a transmission bell 1 1.
  • an electric machine 2 is arranged by way of example in order to feed in electrical drive energy in a torque path of the hybrid transmission or to remove mechanical energy from a torque path of the hybrid transmission and to convert it into electrical energy.
  • a power electronics 3 is provided which comprises a plurality of electronic components 6 which are coupled to the electric machine 2 via a phase interface 4.
  • the lid construction 4 serves as a carrier for the electronic components 6 or the electronic components of the power electronics 3.
  • an AC-DC converter, a DC link capacitor, a control board or the like may be provided. It is also possible to integrate further electronic components into the cover construction 4 without difficulty.
  • the lid construction 4 has at least one cooling channel 7, which dissipates the heat, which is absorbed by the mass of the lid construction 4, accordingly.
  • the electronic components 6 can be cooled via the lid construction 4 as a heat sink or can also be arranged directly in the coolant flow of the cooling channel 7, so that the electronic components 6 are cooled directly by the coolant flow.
  • the phase interface 5 is formed by a phase plug connection between the lid construction 4 and the electric machine 2.
  • the phase connector comprises two corresponding phase connectors 8 and 9 which are plugged directly into each other.
  • the first phase plug 8 is arranged on the cover construction 4 on a side facing the transmission housing 1, and the other phase plug 9 is fastened on the side of the electric machine 2 facing the cover construction 4.
  • the first phase plug 8 can be inserted directly into the second phase plug 9 of the electric machine 2, so that a phase connection is formed between the electric machine 2 and the power electronics or the electronic components 6 ,
  • the cover construction 4 is mounted in the region of the gear bell 1 1 radially below the electric machine 2 axially adjacent to the oil pan 10 on the transmission housing 1.
  • this arrangement of the power electronics 3 does not require any additional installation space on the transmission housing or in the hybrid transmission.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hybrid Electric Vehicles (AREA)
  • General Details Of Gearings (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention proposes a hybrid transmission for a vehicle, in particular for a motor vehicle, having a transmission housing (1) in which is arranged at least one electric machine (2) which is coupled to associated power electronics, wherein the power electronics of the electric machine (2) are provided in a cover structure (4) of the transmission housing (1) and is connected to the electric machine (2) via a phase interface (5).

Description

Hybridqetriebe  Hybridqetriebe
Die vorliegende Erfindung betrifft ein Hybridgetriebe für ein Fahrzeug, insbesondere für ein Kraftfahrzeug, mit einem Getriebegehäuse gemäß der im Oberbegriff des Patentanspruches 1 näher definierten Art. The present invention relates to a hybrid transmission for a vehicle, in particular for a motor vehicle, with a transmission housing according to the closer defined in the preamble of claim 1. Art.
Beispielsweise aus der Druckschrift DE 10 2006 005 095 A1 ist ein Hybridgetriebe mit einem Getriebegehäuse bekannt, dass eingangsseitig einen glockenartigen Gehäuseabschnitt aufweist, in dem eine Elektromaschine angeordnet ist. Die Elekt- romaschine dient dazu, Antriebsenergie in einen Drehmomentpfad des Hybridgetriebes einzuspeisen oder mechanische Energie aus einem Drehmomentpfad des Hybridgetriebes zu entnehmen und in elektrische Energie umzuwandeln. Eine elektrische Steuer-/Regeleinrichtung zur Steuerung beziehungsweise Regelung der Elektromaschine ist in einem radialen Außenbereich des glockenartigen Gehäuseabschnittes angeordnet. Diese Anordnung benötigt in nachteiliger weise zusätzlichen Bauraum an dem äußeren Bereich des Getriebegehäuses. Aufgrund der speziellen Konstruktion wird eine Integration an bestehende Fahrzeugkonzepte erschwert beziehungsweise unmöglich. For example, from the publication DE 10 2006 005 095 A1 discloses a hybrid transmission with a transmission housing is known that the input side has a bell-shaped housing portion in which an electric machine is arranged. The electric machine is used to feed drive energy into a torque path of the hybrid transmission or to remove mechanical energy from a torque path of the hybrid transmission and convert it into electrical energy. An electrical control / regulating device for controlling or regulating the electric machine is arranged in a radial outer region of the bell-shaped housing section. This arrangement requires disadvantageously additional space at the outer region of the transmission housing. Due to the special design, integration with existing vehicle concepts is made difficult or impossible.
Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, ein Hybridgetriebe der eingangs beschriebenen Gattung vorzuschlagen, bei dem die Leistungselektronik beziehungsweise die Steuer- und/oder Regelungseinrichtung der elektrischen Maschine derart angeordnet ist, dass die Anordnung an bestehende Getriebekonzepte angepasst ist und kein zusätzlicher Bauraum erforderlich ist. The present invention is based on the object to propose a hybrid transmission of the type described above, in which the power electronics or the control and / or regulating device of the electric machine is arranged such that the arrangement is adapted to existing transmission concepts and no additional space is required ,
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruches 1 gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen und den Zeichnungen. This object is achieved by the features of claim 1. Advantageous embodiments will become apparent from the dependent claims and the drawings.
Demnach wird ein Hybridgetriebe für ein Fahrzeug mit einem Getriebegehäuse vorgeschlagen, in dem zumindest eine elektrische Maschine angeordnet ist, die mit einer zugeordneten Leistungselektronik beziehungsweise Steuer und/oder Rege- lungseinrichtung gekoppelt ist, wobei die Leistungselektronik in einer Deckelkonstruktion oder dergleichen des Getriebegehäuses untergebracht ist und über eine Phasenschnittstelle oder dergleichen mit der elektrischen Maschine zum Ansteuern derselben verbunden ist. Accordingly, a hybrid transmission for a vehicle with a transmission housing is proposed, in which at least one electric machine is arranged, which is connected to an associated power electronics or control and / or regulation. is coupled, wherein the power electronics is housed in a cover construction or the like of the transmission housing and is connected via a phase interface or the like with the electric machine for driving the same.
Auf diese Weise wird die Leistungselektronik der elektrischen Maschine bei dem Hybridgetriebe platzsparend in das Grundgehäuse des Getriebes integriert beziehungsweise angebaut, so dass kein zusätzlicher Bauraum belegt wird und das Hybridgetriebe somit ohne weiteres in bestehende Fahrzeugkonzepte integriert werden kann. Im Gegensatz zum Stand der Technik wird durch die spezielle Deckelkonstruktion der benötigte Bauraum reduziert und dadurch eine hohe Leistungsdichte ermöglicht. In this way, the power electronics of the electric machine in the hybrid transmission space-saving integrated or grown in the basic housing of the transmission, so that no additional space is occupied and the hybrid transmission can thus be readily integrated into existing vehicle concepts. In contrast to the prior art is reduced by the special lid construction of the required space and thereby enables a high power density.
Bei dem erfindungsgemäßen Hybridgetriebe kann die Deckelkonstruktion mehrere Funktionen in einem Bauteil kombinieren, denn die Deckelkonstruktion bildet einerseits den Grundkörper des Elektronikaufbaus und andererseits den Träger für die Elektronikkomponenten insbesondere der Leistungselektronik oder dergleichen. Durch die Adaption der Deckelkonstruktion an das Getriebegehäuse werden die Elektronikkomponenten der Leistungselektronik in einem abgeschlossenen Getriebebauraum angeordnet und sind aufgrund der Gewährleistung der Dichtungsfunktion vor Umwelteinflüsse geschützt. In the hybrid transmission according to the invention, the cover construction can combine several functions in one component, because the cover construction on the one hand forms the main body of the electronic structure and on the other hand the support for the electronic components, in particular the power electronics or the like. By adapting the cover construction to the gear housing, the electronic components of the power electronics are arranged in a closed gear installation space and are protected against environmental influences due to the guarantee of the sealing function.
Gemäß einer nächsten Weiterbildung der Erfindung kann bei dem Hybridgetriebe durch die Deckelkonstruktion eine weitere Funktion realisiert werden, indem zumindest ein Kühlkanal oder dergleichen in die Deckelkonstruktion integriert ist. Dadurch kann die Masse der Deckelkonstruktion gezielt als Kühlkörper insbesondere für die integrierten Elektronikkomponenten eingesetzt werden, weil die entstehende Wärme von der Deckelkonstruktion aufgenommen wird und durch den Kühlkanal in vorteilhafter Weise abgeführt werden kann. Hierbei ist es möglich, dass die verschiedenen Elektronikkomponenten der Leistungselektronik über die Deckelkonstruktion als Kühlkörper gekühlt werden oder auch einzelne Komponenten direkt in den Kühlmittelstrom integriert werden. Um die Montage bei dem erfindungsgemäßen Hybridgetriebe zu verbessern, kann vorgesehen sein, dass als Phasenschnittstelle eine Phasensteckverbindung oder dergleichen vorgesehen ist. Auf diese Weise kann durch lediglich einen Steckvorgang bei der Montage der die Elektronikkomponenten aufweisenden Deckekonstruktion die Phasenschnittstelle der elektrischen Maschine direkt kontaktiert und beispielsweise durch die anschließende Verschraubung des Deckels gesichert werden. Dadurch wird in vorteilhafter Weise ein Vormontagekonzept bei dem erfindungsgemäßen Hybridgetriebe realisiert. Auch die Wartung der Leistungselektronik beziehungsweise der Steuer- und/oder Regeleinrichtung der elektrischen Maschine wird durch den erfindungsgemäßen Aufbau erheblich vereinfacht. According to a next development of the invention, a further function can be realized in the hybrid transmission by the cover construction by at least one cooling channel or the like is integrated into the cover construction. Thereby, the mass of the lid construction can be selectively used as a heat sink, in particular for the integrated electronic components, because the resulting heat is absorbed by the lid construction and can be removed through the cooling channel in an advantageous manner. In this case, it is possible for the various electronic components of the power electronics to be cooled via the cover construction as a heat sink or individual components to be integrated directly into the coolant flow. In order to improve the assembly in the hybrid transmission according to the invention, it can be provided that a phase plug connection or the like is provided as a phase interface. In this way, the phase interface of the electrical machine can be contacted directly and secured, for example by the subsequent screwing of the lid by only one mating process during assembly of the electronic components having the deck construction. As a result, a pre-assembly concept is realized in the hybrid transmission according to the invention in an advantageous manner. The maintenance of the power electronics or the control and / or regulating device of the electric machine is considerably simplified by the construction according to the invention.
Vorzugsweise kann die Phasensteckverbindung z.B. zwei korrespondierende Phasenstecker umfassen, wobei ein erster Phasenstecker an der Deckelkonstruktion und ein zweiter Phasenstecker an der elektrischen Maschine als Phasenschnittstelle vorgesehen sind. Es sind auch andere Phasenverbindungen einsetzbar, die eine direkte möglichst einfache Phasenschnittstelle zwischen der Leistungselektronik und der elektrischen Maschine realisieren. Beispielsweise können als Phasenstecker Ty- costecker oder dergleichen eingesetzt werden. Preferably, the phase plug connection may be e.g. comprise two corresponding phase plug, wherein a first phase plug on the lid construction and a second phase plug are provided on the electric machine as a phase interface. There are also other phase connections can be used, which realize a direct as simple as possible phase interface between the power electronics and the electric machine. For example, Tycostecker or the like can be used as a phase connector.
Bei dem vorgeschlagenen Hybridgetriebe kann die Deckelkonstruktion vorzugsweise im Bereich der Getriebeglocke des Getriebegehäuses zum Beispiel radial unterhalb der elektrischen Maschine axial neben der Ölwanne lösbar befestigt sein. Beispielsweise kann die Deckelkonstruktion in die Getriebegehäusewand in diesen Bereich eingepasst werden und durch Verschraubungen oder auch andere Befestigungsmittel vorzugsweise lösbar an dem Getriebegehäuse gehalten werden. In the proposed hybrid transmission, the cover construction may preferably be releasably secured axially in the region of the transmission bell of the transmission housing, for example radially below the electric machine, next to the oil sump. For example, the cover structure can be fitted into the transmission housing wall in this area and be held by screws or other fastening means preferably releasably attached to the transmission housing.
Nachfolgend wird die vorliegende Erfindung anhand der Zeichnungen näher erläutert. Es zeigen: Hereinafter, the present invention will be explained in more detail with reference to the drawings. Show it:
Figur 1 eine schematische Schnittdarstellung eines Getriebegehäuses eines möglichen Ausführungsbeispiels eines erfindungsgemäßen Hybridgetriebes; und Figur 2 eine vergrößerte, geschnittene Teilansicht entlang der Schnittlinie A- A gemäß Figur 1 . Figure 1 is a schematic sectional view of a transmission housing of a possible embodiment of a hybrid transmission according to the invention; and FIG. 2 shows an enlarged, partial sectional view along the section line A - A according to FIG. 1.
In den Figuren 1 und 2 ist ein mögliches Ausführungsbeispiel eines Hybridgetriebes für ein Fahrzeug, insbesondere für ein Kraftfahrzeug, mit einem Getriebegehäuse 1 lediglich schematisch dargestellt. Das Getriebegehäuse 1 umfasst einen Bereich für das Grundgetriebe 12 und eine Getriebeglocke 1 1 . Im Bereich der Getriebeglocke 1 1 ist exemplarisch eine elektrische Maschine 2 angeordnet, um elektrische Antriebsenergie in einem Drehmomentpfad des Hybridgetriebes einzuspeisen oder mechanische Energie aus einem Drehmomentpfad des Hybridgetriebes zu entnehmen und in elektrische Energie umzuwandeln. Zum Steuern und/oder Regeln der elektrischen Maschine 2 ist eine Leistungselektronik 3 vorgesehen, die mehrere E- lektronikkomponenten 6 umfasst, die über eine Phasenschnittstelle 4 mit der elektrischen Maschine 2 gekoppelt sind. In Figures 1 and 2, a possible embodiment of a hybrid transmission for a vehicle, in particular for a motor vehicle, with a transmission housing 1 is shown only schematically. The transmission housing 1 comprises an area for the basic transmission 12 and a transmission bell 1 1. In the area of the bell housing 1 1, an electric machine 2 is arranged by way of example in order to feed in electrical drive energy in a torque path of the hybrid transmission or to remove mechanical energy from a torque path of the hybrid transmission and to convert it into electrical energy. For controlling and / or regulating the electric machine 2, a power electronics 3 is provided which comprises a plurality of electronic components 6 which are coupled to the electric machine 2 via a phase interface 4.
Erfindungsgemäß weist das vorgeschlagene Hybridgetriebe eine Deckelkonstruktion 4 als Grundkörper auf, die mit dem Getriebegehäuse 1 verbindbar ist, wobei die Deckelkonstruktion 4 über die Phasenschnittstelle 5 mit der elektrischen Maschine 2 verbunden ist. Die Deckelkonstruktion 4 dient als Träger der Elektronikkomponenten 6 beziehungsweise der elektronischen Komponenten der Leistungselektronik 3. Als Elektronikkomponenten 6 können z.B. ein AC-DC-Wandler, ein Zwischenkreis- kondensator, eine Steuerplatine oder dergleichen vorgesehen sein. Es können auch weitere Elektronikkomponenten ohne weiteres in die Deckelkonstruktion 4 integriert werden. According to the invention, the proposed hybrid transmission on a cover structure 4 as a base body which is connectable to the transmission housing 1, wherein the cover construction 4 is connected via the phase interface 5 with the electric machine 2. The lid construction 4 serves as a carrier for the electronic components 6 or the electronic components of the power electronics 3. an AC-DC converter, a DC link capacitor, a control board or the like may be provided. It is also possible to integrate further electronic components into the cover construction 4 without difficulty.
Insbesondere aus Figur 2 ist ersichtlich, wie die Elektronikkomponenten 6 in die Deckelkonstruktion 4 integriert sind. Ferner weist die Deckelkonstruktion 4 zumindest einem Kühlkanal 7 auf, welcher die Wärme, die von der Masse der Deckelkonstruktion 4 aufgenommen wird, entsprechend abführt. Dadurch können die Elektronikkomponenten 6 über die Deckelkonstruktion 4 als Kühlkörper gekühlt werden oder auch direkt in dem Kühlmittelstrom des Kühlkanals 7 angeordnet sein, so dass die Elektronikkomponenten 6 durch den Kühlmittelstrom direkt gekühlt werden. Die Phasenschnittstelle 5 wird durch eine Phasensteckverbindung zwischen der Deckelkonstruktion 4 und der elektrischen Maschine 2 gebildet. Die Phasensteckverbindung umfasst zwei korrespondierende Phasenstecker 8 und 9 die direkt ineinander gesteckt werden. Der erste Phasenstecker 8 ist an der Deckelkonstruktion 4 an einer in dem Getriebegehäuse 1 zugewandten Seite angeordnet und der andere Phasenstecker 9 ist an der der Deckelkonstruktion 4 zugewandten Seite der elektrischen Maschine 2 befestigt. Wenn die Deckelkonstruktion 4 im montierten Zustand an dem Getriebegehäuse 1 befestigt wird, kann der erste Phasenstecker 8 direkt in den zweiten Phasenstecker 9 der elektrischen Maschine 2 gesteckt werden, so dass eine Phasenverbindung zwischen der elektrischen Maschine 2 und der Leistungselektronik beziehungsweise den Elektronikkomponenten 6 gebildet wird. In particular, from Figure 2 it can be seen how the electronic components 6 are integrated into the lid construction 4. Furthermore, the lid construction 4 has at least one cooling channel 7, which dissipates the heat, which is absorbed by the mass of the lid construction 4, accordingly. As a result, the electronic components 6 can be cooled via the lid construction 4 as a heat sink or can also be arranged directly in the coolant flow of the cooling channel 7, so that the electronic components 6 are cooled directly by the coolant flow. The phase interface 5 is formed by a phase plug connection between the lid construction 4 and the electric machine 2. The phase connector comprises two corresponding phase connectors 8 and 9 which are plugged directly into each other. The first phase plug 8 is arranged on the cover construction 4 on a side facing the transmission housing 1, and the other phase plug 9 is fastened on the side of the electric machine 2 facing the cover construction 4. When the lid construction 4 is fastened to the transmission housing 1 in the mounted state, the first phase plug 8 can be inserted directly into the second phase plug 9 of the electric machine 2, so that a phase connection is formed between the electric machine 2 and the power electronics or the electronic components 6 ,
Vorzugsweise wird die Deckelkonstruktion 4 im Bereich der Getriebeglocke 1 1 radial unterhalb der elektrischen Maschine 2 axial neben der Ölwanne 10 an dem Getriebegehäuse 1 befestigt. Wie insbesondere aus Figur 1 ersichtlich ist, wird durch diese Anordnung der Leistungselektronik 3 kein zusätzlicher Bauraum an dem Getriebegehäuse beziehungsweise bei dem Hybridgetriebe benötigt. Preferably, the cover construction 4 is mounted in the region of the gear bell 1 1 radially below the electric machine 2 axially adjacent to the oil pan 10 on the transmission housing 1. As can be seen in particular from FIG. 1, this arrangement of the power electronics 3 does not require any additional installation space on the transmission housing or in the hybrid transmission.
Bezuqszeichen REFERENCE CHARACTERS
Getriebegehäuse gearbox
elektrische Maschine electric machine
Leistungselektronik power electronics
Deckelkonstruktion lid
Phasenschnittstelle Phase interface
Elektronikkomponente electronic component
Kühlkanal cooling channel
erster Phasenstecker first phase plug
zweiter Phasenstecker second phase connector
Ölwanne oil pan
Getriebeglocke transmission bell
Grundgetriebe basic transmission

Claims

Patentansprüche claims
1 . Hybridgetriebe für ein Fahrzeug, insbesondere für ein Kraftfahrzeug, mit einem Getriebegehäuse (1 ), in dem zumindest eine elektrische Maschine (2) angeordnet ist, die mit einer zugeordneten Leistungselektronik gekoppelt ist, dadurch gekennzeichnet, dass die Leistungselektronik der elektrischen Maschine (2) in einer Deckelkonstruktion (4) des Getriebegehäuses (1 ) vorgesehen ist und über eine Phasenschnittstelle (5) mit der elektrischen Maschine (2) verbunden ist. 1 . Hybrid transmission for a vehicle, in particular for a motor vehicle, with a transmission housing (1), in which at least one electric machine (2) is arranged, which is coupled to an associated power electronics, characterized in that the power electronics of the electric machine (2) in a lid construction (4) of the transmission housing (1) is provided and is connected via a phase interface (5) with the electrical machine (2).
2. Hybridgetriebe nach Anspruch 1 , dadurch gekennzeichnet, dass die Deckelkonstruktion (4) als Träger der Elektronikkomponenten (6) der Leistungselektronik (3) ausgebildet ist. 2. Hybrid transmission according to claim 1, characterized in that the cover construction (4) as a carrier of the electronic components (6) of the power electronics (3) is formed.
3. Hybridgetriebe nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Deckelkonstruktion (4) zumindest einen Kühlkanal (7) aufweist. 3. Hybrid transmission according to one of the preceding claims, characterized in that the cover construction (4) has at least one cooling channel (7).
4. Hybridgetriebe nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass als Phasenschnittstelle (5) eine Phasensteckverbindung zwischen der Deckelkonstruktion (4) und der elektrischen Maschine (2) vorgesehen ist. 4. Hybrid transmission according to one of the preceding claims, characterized in that a phase plug connection between the cover construction (4) and the electric machine (2) is provided as the phase interface (5).
5. Hybridgetriebe nach Anspruch 4, dadurch gekennzeichnet, dass die Phasensteckverbindung zwei korrespondierende Phasenstecker (8, 9) umfasst, wobei ein erster Phasenstecker (8) an der Deckelkonstruktion (4) und ein zweiter Phasenstecker (9) an der elektrischen Maschine (2) vorgesehen sind. 5. Hybrid transmission according to claim 4, characterized in that the phase plug connection comprises two corresponding phase plugs (8, 9), wherein a first phase plug (8) on the lid construction (4) and a second phase plug (9) on the electric machine (2) are provided.
6. Hybridgetriebe nach Anspruch 5, dadurch gekennzeichnet, dass die Phasenstecker (8, 9) der Phasensteckverbindung direkt ineinander steckbar sind, wenn die Deckelkonstruktion (4) im montierten Zustand an dem Getriebegehäuse (1 ) befestigt ist, sodass eine Phasenverbindung zwischen der elektrischen Maschine (2) und der Leistungselektronik (3) vorgesehen ist. 6. Hybrid transmission according to claim 5, characterized in that the phase plug (8, 9) of the phase plug connection are plugged directly into one another, when the cover construction (4) is fixed in the mounted state on the transmission housing (1), so that a phase connection between the electric machine (2) and the power electronics (3) is provided.
7. Hybridgetriebe nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Deckelkonstruktion (4) im Bereich der Getriebeglocke (1 1 ) radial unterhalb der elektrischen Maschine (2) axial neben der Ölwanne (10) an dem Getriebegehäuse (2) lösbar befestigt ist. 7. Hybrid transmission according to one of the preceding claims, characterized in that the cover construction (4) in the region of the bell housing (1 1) radially below the electric machine (2) axially adjacent to the oil pan (10) on the transmission housing (2) is releasably attached ,
PCT/EP2010/070393 2010-03-11 2010-12-21 Hybrid transmission WO2011110253A1 (en)

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