WO2013000832A1 - Drive train for a vehicle - Google Patents

Drive train for a vehicle Download PDF

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Publication number
WO2013000832A1
WO2013000832A1 PCT/EP2012/062090 EP2012062090W WO2013000832A1 WO 2013000832 A1 WO2013000832 A1 WO 2013000832A1 EP 2012062090 W EP2012062090 W EP 2012062090W WO 2013000832 A1 WO2013000832 A1 WO 2013000832A1
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WO
WIPO (PCT)
Prior art keywords
transmission
internal combustion
combustion engine
drive train
input shaft
Prior art date
Application number
PCT/EP2012/062090
Other languages
German (de)
French (fr)
Inventor
Georg Helms
Helmut Melde-Tuczai
Original Assignee
Avl List Gmbh
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 Avl List Gmbh filed Critical Avl List Gmbh
Publication of WO2013000832A1 publication Critical patent/WO2013000832A1/en

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Classifications

    • 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
    • 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
    • B60K6/36—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 transmission gearings
    • B60K6/365—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 transmission gearings with the gears having orbital motion
    • 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
    • B60K6/38—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 driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/20—Reducing vibrations in the driveline
    • 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
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0475—Engine and gearing, i.e. joint lubrication or cooling or heating thereof
    • 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
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F16H57/0484—Gearings with gears having orbital motion with variable gear ratio or for reversing rotary motion
    • 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
    • B60Y2400/48—Vibration dampers, e.g. dual mass flywheels
    • 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
    • F16H2003/0931—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 each countershaft having an output gear meshing with a single common gear on the output shaft
    • 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
    • F16H2057/0203—Gearboxes; Mounting gearing therein the gearbox is associated or combined with a crank case of an engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0056—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising seven forward speeds
    • 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

Definitions

  • the invention relates to a drive train for a vehicle, in particular for a hybrid vehicle, with a transmission having at least one transmission input shaft, wherein the transmission input shaft is connected via at least one separating clutch with a driving shaft of an internal combustion engine, wherein the internal combustion engine and the transmission have a common lubricating oil circuit.
  • the object of the invention is to improve the supply of lubricating oil in the region of the center of the transmission in a drive train of the type mentioned in a simple manner.
  • the internal combustion engine and the transmission preferably have a common or directly adjoining housing.
  • the common housing and the common lubricating oil circuit allow a saving of parts and space, as well as a cost-effective production, and allow a particularly rigid structure.
  • the first transmission input shaft is formed as a hollow shaft, wherein the preferably designed as a torsion bar driving shaft is disposed within the hollow shaft, and wherein preferably an annular space is formed between the driving shaft and the hollow shaft
  • the transmission preferably has at least one planetary gear with at least ei ⁇ nem rotatably mounted about a central axis sun gear, which is connected to ⁇ preferably non-rotatably connected to the input shaft.
  • the driving shaft For supplying oil to the transmission, the driving shaft at least one associated with an oil-bearing chamber of the internal combustion engine oil passage, wel ⁇ cher preferably via at least one radial bore in the driving shaft, preferably of about the annulus and / or a bearing of the transmission input shaft, with the interior Transmission, in particular of the planetary gear, fluid-connected.
  • the annular space can be sealed off from the surroundings by way of a shaft seal at the end facing away from the internal combustion engine.
  • At least one electric machine can be integrated, which, preferably via at least one ring gear of the planetary gear, with the transmission input shaft is nadoverbindbar.
  • the "dry” clutch space is located at the end of the "wet” housing. This allows - in comparison with between internal combustion engine and gearbox ⁇ ordered clutches - a shaft seal can be saved. The seal and the eventual maintenance of the clutches is considerably simplified and cheaper, since the engine and transmission can be connected together and stay in place in the vehicle.
  • the Fig. schematically shows a drive train according to the invention for a Hy ⁇ bridGerman with an internal combustion engine ICE and a hybrid transmission HT with a planetary gear 1 in longitudinal section.
  • Internal combustion engine ICE and transmission HT have a common housing 4.
  • a driven by an internal combustion engine ICE shaft 11 is rotatably disposed, which drives a hollow transmission input shaft 2 via a separating clutch 20, within which the shaft 11 is guided.
  • the transmission input shaft 2 and the shaft 11 driven by the internal combustion engine ICE are rotatably mounted about a central axis 1 '.
  • a ring gear 12 of the planetary gear 1 is rotatably connected to a rotor 13 of an electric machine 14. Via the electric machine 14 additional drive torque can be supplied or a braking torque can be initiated.
  • the planet carrier 15 of the planetary gear 1, on which planetary gears 16 are rotatably mounted is connected to a driving shaft 21 in connection.
  • the hollow transmission input shaft 2 is fixedly connected to the sun gear 2 a of the planetary gear 1.
  • the transmission input shaft 2 is rotatably supported via a first and a second bearing 8, 10.
  • the first bearing 8 is arranged on the side facing away from the internal combustion engine ICE side of the planetary gear 1 in the machine housing 17 of the electric machine 14.
  • the second bearing 10 - here a plain bearing - is located on the internal combustion engine ICE side facing the planetary gear 1 in the underlying shaft 21st
  • annular space 19 is formed between the shaft 11 driven by the crankshaft 3 of the internal combustion engine and the hollow transmission input shaft 2 carrying the sun gear 2a.
  • the supply of the planetary gear 1 with lubricating oil is ensured if oil is ge ⁇ introduced into the hollow transmission input shaft 2, or in the annular space 19th
  • the pressure oil of the internal combustion engine ICE is brought via a central oil passage 5 in the driven shaft 11 within the transmission input shaft 2.
  • the oil From a pressurized oil-carrying space 6 of the crankshaft 3 of the internal combustion engine ICE in the shaft connection 7 between the crankshaft 3 and the driving shaft 11, the oil enters the end faces in the form of a torsion bar driving shaft 11.
  • the hollow transmission input shaft 2 is sealed to the outside of the transmission with a Wellenabdichtring 22 and the driven shaft 11 relative to the transmission input shaft 2 with a shaft seal 23.
  • the internal combustion engine ICM out no seal is required because the oil can be used on this page for lubrication of Getriebe sheer- and -finalchn not shown.

Abstract

The invention relates to a drive train for a vehicle, in particular for a hybrid vehicle, comprising a transmission (HT) having at least one transmission input shaft (2), wherein the transmission input shaft (2) is connected to a driving shaft (11) of an internal combustion engine (ICE) by means of at least one decoupler (16), wherein the internal combustion engine and the transmission have a common lubricating oil circuit. In order to ensure a sufficient supply of lubricating oil to the transmission (HT) in the simplest possible way, the transmission (HT) directly adjoins the internal combustion engine (ICE), wherein the clutch (16) is arranged on the side of the transmission (HT) facing away from the internal combustion engine (ICE).

Description

Antriebsstrang für ein Fahrzeug  Powertrain for a vehicle
Die Erfindung betrifft einen Antriebsstrang für ein Fahrzeug, insbesondere für ein Hybridfahrzeug, mit einem Getriebe mit zumindest einer Getriebeeingangswelle, wobei die Getriebeeingangswelle über zumindest eine Trennkupplung mit einer treibenden Welle einer Brennkraftmaschine verbunden ist, wobei die Brennkraftmaschine und das Getriebe einen gemeinsamen Schmierölkreislauf aufweisen. The invention relates to a drive train for a vehicle, in particular for a hybrid vehicle, with a transmission having at least one transmission input shaft, wherein the transmission input shaft is connected via at least one separating clutch with a driving shaft of an internal combustion engine, wherein the internal combustion engine and the transmission have a common lubricating oil circuit.
Bei Getrieben mit mehreren Gangstufen erzeugen die vorhandenen Wellen und Räder einen dichten Ölnebel, der Lagerstellen und Zahneingriffe ausreichend mit Öl versorgt. Insbesondere bei Planetengetrieben mit wenigen Getriebestufen ist der Innenraum des Getriebegehäuses von geschlossenen Rotationskörpern ausgefüllt. Im Fall der fehlenden Wellen und Räder muss die Ölversorgung anders bewerkstelligt werden, weil die Rotationskörper das Öl nur nach außen fördern und im Zentrum ein Ölmangel auftritt. In multi-speed gearboxes, the existing shafts and wheels create a dense oil mist that provides sufficient oil to bearings and gear meshes. In particular, in planetary gears with few gear stages of the interior of the gear housing is filled by closed bodies of revolution. In the case of missing shafts and wheels, the oil supply must be done differently, because the rotary body convey the oil only to the outside and in the center an oil shortage occurs.
Aus den Veröffentlichungen WO 00/08359 AI, US 3, 447,400 A, DE 102 38 594 AI und DE 102 55 727 AI sind Planetengetriebe bekannt, deren Sonnenräder jeweils mit einem Laufrad einer Ölpumpe antriebsverbunden sind. From the publications WO 00/08359 AI, US 3, 447,400 A, DE 102 38 594 AI and DE 102 55 727 AI planetary gear are known, the sun gears are each drivingly connected to an impeller of an oil pump.
Die Veröffentlichungen JP 2010/275 993 A, US 2007/283 919 AI und DE 39 37 587 AI offenbaren Antriebsstränge, wobei jeweils eine Brennkraftmaschine und ein Getriebe einen gemeinsamen Schmierölkreislauf aufweisen. The publications JP 2010/275 993 A, US 2007/283 919 AI and DE 39 37 587 AI disclose drive trains, each having an internal combustion engine and a transmission having a common lubricating oil circuit.
Aufgabe der Erfindung ist es, bei einem Antriebsstrang der eingangs genannten Art auf einfache Weise die Schmierölversorgung im Bereich des im Zentrum des Getriebes zu verbessern. The object of the invention is to improve the supply of lubricating oil in the region of the center of the transmission in a drive train of the type mentioned in a simple manner.
Erfindungsgemäß wird dies dadurch erreicht, dass das Getriebe unmittelbar an die Brennkraftmaschine grenzt, wobei die Trennkupplung auf der der Brennkraftmaschine abgewandten Seite des Getriebes angeordnet ist. According to the invention this is achieved in that the transmission directly adjoins the internal combustion engine, wherein the separating clutch is arranged on the side facing away from the engine of the transmission.
Dadurch können die Ölräume des Getriebes und der Brennkraftmaschine ohne dazwischenliegende störende Trennkupplung miteinander unmittelbar verbunden werden. As a result, the oil chambers of the transmission and the internal combustion engine without intervening disruptive clutch can be directly connected to each other.
Vorzugsweise weisen Brennkraftmaschine und Getriebe ein gemeinsames oder direkt aneinandergrenzendes Gehäuse auf. Das gemeinsame Gehäuse und der gemeinsame Schmierölkreislauf erlauben eine Einsparung von Teilen und Bauraum, sowie eine kostengünstige Herstellung, und ermöglichen eine besonders steife Struktur. The internal combustion engine and the transmission preferably have a common or directly adjoining housing. The common housing and the common lubricating oil circuit allow a saving of parts and space, as well as a cost-effective production, and allow a particularly rigid structure.
Dabei ist es besonders vorteilhaft, wenn die erste Getriebeeingangswelle als Hohlwelle ausgebildet ist, wobei die vorzugsweise als Torsionsstab ausgebildete treibende Welle innerhalb der Hohlwelle angeordnet ist, und wobei vorzugsweise zwischen der treibenden Welle und der Hohlwelle ein Ringraum ausgebildet ist It is particularly advantageous if the first transmission input shaft is formed as a hollow shaft, wherein the preferably designed as a torsion bar driving shaft is disposed within the hollow shaft, and wherein preferably an annular space is formed between the driving shaft and the hollow shaft
Das Getriebe weist bevorzugt zumindest ein Planetengetriebe mit zumindest ei¬ nem um eine zentrale Achse drehbar gelagerten Sonnenrad auf, welches vor¬ zugsweise drehfest mit der Eingangswelle verbunden ist. The transmission preferably has at least one planetary gear with at least ei ¬ nem rotatably mounted about a central axis sun gear, which is connected to ¬ preferably non-rotatably connected to the input shaft.
Zur Ölversorgung des Getriebes weist die treibende Welle zumindest einen mit einem ölführenden Raum der Brennkraftmaschine verbundenen Ölkanal auf, wel¬ cher bevorzugt über zumindest eine radiale Bohrung in der treibenden Welle, vorzugsweise über den Ringraum und/oder ein Lager der Getriebeeingangswelle, mit dem Inneren des Getriebes, insbesondere des Planetengetriebes, strömungs- verbunden ist. Der Ringraum kann an dem der Brennkraftmaschine abgewandten Ende gegenüber der Umgebung über eine Wellendichtung abgedichtet sein. For supplying oil to the transmission, the driving shaft at least one associated with an oil-bearing chamber of the internal combustion engine oil passage, wel ¬ cher preferably via at least one radial bore in the driving shaft, preferably of about the annulus and / or a bearing of the transmission input shaft, with the interior Transmission, in particular of the planetary gear, fluid-connected. The annular space can be sealed off from the surroundings by way of a shaft seal at the end facing away from the internal combustion engine.
In den Antriebsstrang kann zumindest eine elektrische Maschine integriert sein, welche, vorzugsweise über zumindest ein Hohlrad des Planetengetriebes, mit der Getriebeeingangswelle drehverbindbar ist. In the drive train, at least one electric machine can be integrated, which, preferably via at least one ring gear of the planetary gear, with the transmission input shaft is drehverbindbar.
Der "trockene" Kupplungsraum ist am Ende des "nassen" Gehäuses angeordnet. Dadurch kann - im Vergleich mit zwischen Brennkraftmaschine und Getriebe an¬ geordneten Kupplungen - ein Wellendichtring eingespart werden. Die Abdichtung sowie die eventuelle Wartung der Kupplungen wird wesentlich vereinfacht und verbilligt, da Brennkraftmaschine und Getriebe miteinander verbunden und an Ort und Stelle im Fahrzeug bleiben können. The "dry" clutch space is located at the end of the "wet" housing. This allows - in comparison with between internal combustion engine and gearbox ¬ ordered clutches - a shaft seal can be saved. The seal and the eventual maintenance of the clutches is considerably simplified and cheaper, since the engine and transmission can be connected together and stay in place in the vehicle.
Die Erfindung wird im Folgenden anhand der Fig . näher erläutert. The invention will be described below with reference to FIG. explained in more detail.
Die Fig . zeigt schematisch einen erfindungsgemäßen Antriebsstrang für ein Hy¬ bridfahrzeug mit einer Brennkraftmaschine ICE und einem Hybridgetriebe HT mit einem Planetengetriebe 1 im Längsschnitt. Brennkraftmaschine ICE und Getriebe HT weisen ein gemeinsames Gehäuse 4 auf. Im Gehäuse 4 ist eine durch eine Brennkraftmaschine ICE angetriebene Welle 11 drehbar angeordnet, welche über eine Trennkupplung 20 eine hohle Getriebeeingangswelle 2 antreibt, innerhalb welcher die Welle 11 geführt ist. Die Getriebeeingangswelle 2 und die durch die Brennkraftmaschine ICE angetriebene Welle 11 sind um eine zentrale Achse 1' drehbar gelagert. Ein Hohlrad 12 des Planetengetriebe 1 ist drehfest mit einem Rotor 13 einer elektrischen Maschine 14 verbunden. Über die elektrische Maschine 14 kann zusätzliches Antriebsmoment zugeführt oder ein Bremsmoment eingeleitet werden. Der Planetenträger 15 des Planetengetriebes 1, auf welchem Planetenräder 16 drehbar angeordnet sind, steht mit einer treibenden Welle 21 in Verbindung . The Fig. schematically shows a drive train according to the invention for a Hy ¬ bridfahrzeug with an internal combustion engine ICE and a hybrid transmission HT with a planetary gear 1 in longitudinal section. Internal combustion engine ICE and transmission HT have a common housing 4. In the housing 4, a driven by an internal combustion engine ICE shaft 11 is rotatably disposed, which drives a hollow transmission input shaft 2 via a separating clutch 20, within which the shaft 11 is guided. The transmission input shaft 2 and the shaft 11 driven by the internal combustion engine ICE are rotatably mounted about a central axis 1 '. A ring gear 12 of the planetary gear 1 is rotatably connected to a rotor 13 of an electric machine 14. Via the electric machine 14 additional drive torque can be supplied or a braking torque can be initiated. The planet carrier 15 of the planetary gear 1, on which planetary gears 16 are rotatably mounted, is connected to a driving shaft 21 in connection.
Die hohle Getriebeeingangswelle 2 ist fest mit dem Sonnenrad 2a des Planetengetriebes 1 verbunden. Die Getriebeeingangswelle 2 ist über ein erstes und ein zweites Lager 8, 10 drehbar gelagert. Das erste Lager 8 ist dabei auf der der Brennkraftmaschine ICE abgewandten Seite des Planetengetriebes 1 im Maschinengehäuse 17 der elektrischen Maschine 14 angeordnet. Das zweite Lager 10 - hier ein Gleitlager - befindet sich auf der der Brennkraftmaschine ICE zugewandten Seite des Planetengetriebes 1 in der tieibenden Welle 21. The hollow transmission input shaft 2 is fixedly connected to the sun gear 2 a of the planetary gear 1. The transmission input shaft 2 is rotatably supported via a first and a second bearing 8, 10. The first bearing 8 is arranged on the side facing away from the internal combustion engine ICE side of the planetary gear 1 in the machine housing 17 of the electric machine 14. The second bearing 10 - here a plain bearing - is located on the internal combustion engine ICE side facing the planetary gear 1 in the underlying shaft 21st
Zwischen der durch die Kurbelwelle 3 der Brennkraftmaschine ICE angetriebenen Welle 11 und der das Sonnenrad 2a tragenden hohlen Getriebeeingangswelle 2 ist ein Ringraum 19 ausgebildet. Between the shaft 11 driven by the crankshaft 3 of the internal combustion engine and the hollow transmission input shaft 2 carrying the sun gear 2a, an annular space 19 is formed.
Die Versorgung des Planetengetriebes 1 mit Schmieröl ist gesichert, wenn Öl in die hohle Getriebeeingangswelle 2, beziehungsweise in den Ringraum 19 ge¬ bracht wird . Das Drucköl der Brennkraftmaschine ICE wird über einen zentrale Ölkanal 5 in der angetriebenen Welle 11 innerhalb der Getriebeeingangswelle 2 gebracht. Aus einem druckölführenden Raum 6 der Kurbelwelle 3 der Brennkraftmaschine ICE im Bereich der Wellenanbindung 7 zwischen der Kurbelwelle 3 und der treibenden Welle 11 tritt das Öl stirnseitig in die als Drehstab ausgebildete treibende Welle 11. Aus einer oder zwei radialen Bohrungen 9 in der treibenden Welle 11 gelangt das Öl in den Ringraum 15 innerhalb der Getriebeeingangswelle 2. Von dort verteilt es sich durch die Fliehkraft über die Lager 8, 10 in das Planetengetriebe 1. The supply of the planetary gear 1 with lubricating oil is ensured if oil is ge ¬ introduced into the hollow transmission input shaft 2, or in the annular space 19th The pressure oil of the internal combustion engine ICE is brought via a central oil passage 5 in the driven shaft 11 within the transmission input shaft 2. From a pressurized oil-carrying space 6 of the crankshaft 3 of the internal combustion engine ICE in the shaft connection 7 between the crankshaft 3 and the driving shaft 11, the oil enters the end faces in the form of a torsion bar driving shaft 11. From one or two radial holes 9 in the driving shaft eleventh the oil passes into the annular space 15 within the transmission input shaft 2. From there it is distributed by the centrifugal force via the bearings 8, 10 in the planetary gear first
Die hohle Getriebeeingangswelle 2 ist zur Außenseite des Getriebes mit einem Wellenabdichtring 22 und die angetriebene Welle 11 gegenüber der Getriebeeingangswelle 2 mit einem Wellendichtring 23 abgedichtet. Zur Brennkraftmaschine ICM hin ist keine Abdichtung erforderlich, weil das Öl auf dieser Seite zu Schmierung von nicht weiter dargestellten Getriebezwischen- und -finalstufen verwendet werden kann. The hollow transmission input shaft 2 is sealed to the outside of the transmission with a Wellenabdichtring 22 and the driven shaft 11 relative to the transmission input shaft 2 with a shaft seal 23. The internal combustion engine ICM out no seal is required because the oil can be used on this page for lubrication of Getriebezwischen- and -finalstufen not shown.

Claims

P A T E N T A N S P R Ü C H E PATENT APPLICATIONS
1. Antriebsstrang für ein Fahrzeug, insbesondere für ein Hybridfahrzeug, mit einem Getriebe (HT) mit zumindest einer Getriebeeingangswelle (2), wobei die Getriebeeingangswelle (2) über zumindest eine Trennkupplung (16) mit einer treibenden Welle (11) einer Brennkraftmaschine (ICE) verbunden ist, wobei die Brennkraftmaschine und das Getriebe einen gemeinsamen Schmierölkreislauf aufweisen, dadurch gekennzeichnet, dass das Ge¬ triebe (HT) unmittelbar an die Brennkraftmaschine (ICE) grenzt, wobei die Trennkupplung (16) auf der der Brennkraftmaschine (ICE) abgewandten Seite des Getriebes (HT) angeordnet ist. 1. powertrain for a vehicle, in particular for a hybrid vehicle, with a transmission (HT) with at least one transmission input shaft (2), wherein the transmission input shaft (2) via at least one separating clutch (16) with a driving shaft (11) of an internal combustion engine (ICE ), wherein the internal combustion engine and the transmission have a common lubricating oil circuit, characterized in that the Ge ¬ gear (HT) directly adjacent to the internal combustion engine (ICE), wherein the separating clutch (16) on the side facing away from the internal combustion engine (ICE) of the transmission (HT) is arranged.
2. Antriebsstrang nach Anspruch 1, dadurch gekennzeichnet, dass die Brennkraftmaschine (ICE) und das Getriebe (HT) innerhalb eines gemein¬ samen Gehäuses (4) angeordnet sind. 2. Drive train according to claim 1, characterized in that the internal combustion engine (ICE) and the transmission (HT) are arranged within a common housing ¬ (4).
3. Antriebsstrang nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Getriebeeingangswelle (2) als Hohlwelle ausgebildet ist, wobei die vor¬ zugsweise als Torsionsstab ausgebildete treibende Welle (11) innerhalb der Getriebeeingangswelle (2) angeordnet ist, und wobei vorzugsweise zwi¬ schen der treibenden Welle (11) und der Getriebeeingangswelle (2) ein Ringraum (19) ausgebildet ist. 3. Drive train according to claim 1 or 2, characterized in that the transmission input shaft (2) is designed as a hollow shaft, wherein the ¬ preferably designed as a torsion bar driving shaft (11) within the transmission input shaft (2) is arranged, and preferably zwi ¬ A ring space (19) is formed between the driving shaft (11) and the transmission input shaft (2).
4. Antriebsstrang nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Getriebe (HT) zumindest ein Planetengetriebe (1) mit zumindest einem um eine zentrale Achse ( ) drehbar gelagerten Sonnenrad (2a) aufweist. 4. Drive train according to one of claims 1 to 3, characterized in that the transmission (HT) at least one planetary gear (1) with at least one about a central axis () rotatably mounted sun gear (2a).
5. Antriebsstrang nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Sonnenrad (2a) drehfest mit der ersten Getriebeeingangswelle (2) verbunden ist. 5. Drive train according to one of claims 1 to 4, characterized in that the sun gear (2a) is non-rotatably connected to the first transmission input shaft (2).
6. Antriebsstrang nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die treibende Welle ( 11) zumindest einen mit einem ölführenden Raum (6) der Brennkraftmaschine (ICE) verbundenen Ölkanal (5) aufweist. 6. Drive train according to one of claims 1 to 5, characterized in that the driving shaft (11) has at least one connected to an oil-carrying space (6) of the internal combustion engine (ICE) oil passage (5).
7. Antriebsstrang nach Anspruch 6, dadurch gekennzeichnet, dass der Ölkanal (5) über zumindest eine radiale Bohrung (9) in der treibenden Welle (11), vorzugsweise über den Ringraum (19) und/oder ein Lager (8, 10) der Getriebeeingangswelle (2), mit dem Inneren (la) des Getriebes (HT), ins¬ besondere des Planetengetriebes ( 1), strömungsverbunden ist. 7. Drive train according to claim 6, characterized in that the oil passage (5) via at least one radial bore (9) in the driving shaft (11), preferably via the annular space (19) and / or a bearing (8, 10) of the Transmission input shaft (2), with the interior (la) of the transmission (HT), in ¬ particular of the planetary gear (1), is fluidly connected.
8. Antriebsstrang nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Ringraum (19) an einem der Brennkraftmaschine (ICE) abgewandten Ende gegenüber der Umgebung abgedichtet ist. 8. Drive train according to one of claims 1 to 7, characterized in that the annular space (19) on one of the internal combustion engine (ICE) facing away from the environment is sealed off.
9. Antriebsstrang nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass zumindest eine elektrische Maschine ( 14) in den Antriebsstrang integriert ist, welche, vorzugsweise über zumindest ein Hohlrad ( 12) des Planetengetriebes (1), mit der Getriebeeingangswelle (2) drehverbindbar ist. 9. Drive train according to one of claims 1 to 8, characterized in that at least one electric machine (14) is integrated in the drive train, which, preferably via at least one ring gear (12) of the planetary gear (1), with the transmission input shaft (2). is drehverbindbar.
PCT/EP2012/062090 2011-06-30 2012-06-22 Drive train for a vehicle WO2013000832A1 (en)

Applications Claiming Priority (4)

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ATA955/2011 2011-06-30
ATA955/2011A AT511632B1 (en) 2011-06-30 2011-06-30 DRIVE TRAIN FOR ONE VEHICLE
ATA1285/2011A AT511356B1 (en) 2011-06-30 2011-09-08 DRIVE TRAIN FOR ONE VEHICLE
ATA1285/2011 2011-09-08

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AT511356B1 (en) 2012-11-15
AT511632B1 (en) 2013-04-15
WO2013000829A1 (en) 2013-01-03
AT511356A4 (en) 2012-11-15

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