WO2019075497A1 - Drive train for a vehicle - Google Patents

Drive train for a vehicle Download PDF

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Publication number
WO2019075497A1
WO2019075497A1 PCT/AT2018/060241 AT2018060241W WO2019075497A1 WO 2019075497 A1 WO2019075497 A1 WO 2019075497A1 AT 2018060241 W AT2018060241 W AT 2018060241W WO 2019075497 A1 WO2019075497 A1 WO 2019075497A1
Authority
WO
WIPO (PCT)
Prior art keywords
planetary gear
intermediate shaft
gear
transmission
drive train
Prior art date
Application number
PCT/AT2018/060241
Other languages
German (de)
French (fr)
Inventor
Juraj HRUBEC
Original Assignee
Avl Commercial Driveline & Tractor Engineering 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 Commercial Driveline & Tractor Engineering Gmbh filed Critical Avl Commercial Driveline & Tractor Engineering Gmbh
Publication of WO2019075497A1 publication Critical patent/WO2019075497A1/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
    • B60K6/42—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 the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • 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
    • 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
    • B60K6/42—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 the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • 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
    • B60K2006/381—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 characterized by driveline brakes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • the invention relates to a drive train for a vehicle having a hybrid transmission, in particular a dedicated hybrid transmission, with an input shaft drivable by a prime mover and an output shaft, the hybrid transmission having a first electric machine and a second electric machine, and a first planetary gear and a second planetary gear wherein the first planetary gear and the second planetary gear each have three gear elements - namely sun gear, planet carrier and ring gear -, wherein the input shaft is connected to a first element of the first planetary gear, the first electric machine via a first intermediate shaft with a second element of the first planetary gear and the second electric machine is connected via a second intermediate shaft with a first element of the second planetary gear, wherein a transmission element of the first planetary gear with a transmission element of the second s planetary gear is connected
  • Hybrid transmissions are gears with or understood for at least two drive sources, which are used alternatively or simultaneously.
  • a dedicated hybrid transmission DHT
  • DHT dedicated hybrid transmission
  • add-on hybrid transmissions are known which consist of a conventional transmission and are converted by addition or expansion by means of an additional drive source to hybrid transmissions. As a result, if this additional drive source is omitted, a complete functional exercise would be provided.
  • add-on hybrid transmission solutions are considerably heavier, more expensive and require more space compared to a dedicated hybrid transmission.
  • a dedicated hybrid transmission may have various modes of operation, for example, serial operating mode, parallel operating mode, power split CVT operating mode, pure electrical operating mode, pure combustion engine operating mode.
  • DHT transmissions can be dispensed with a separate starter for the internal combustion engine.
  • US 5,931,757 A discloses a powertrain for a vehicle having an electromechanical transmission with two modes of operation, which transmission comprises three planetary gears and two electric machines acting on two of the planetary gears.
  • An input shaft of the electromechanical transmission is connected to an internal combustion engine.
  • For switching a wet clutch and a wet brake is provided.
  • This compact solution also known as the Allison transmission, requires little electrical energy, in particular during operation above a vehicle speed of 25 km / h, the characteristic map having three purely mechanical operating points.
  • the electrical machines can thus be relatively small dimensions. Due to the complex construction of the transmission with the wet clutch switching elements, however, the transmission is relatively expensive and less suitable for use in vehicles in developing countries.
  • the CN 204 055 308 U discloses a hybrid transmission with two planetary gears and two electric machines, each planetary gear is associated with an electric machine.
  • a drivable by an internal combustion engine input shaft is connected to the planet carrier and the first electric machine via a first intermediate shaft with the sun gear of the first planetary gear.
  • the second electric machine is connected to the sun gear and the output shaft to the planet carrier of the second planetary gear, wherein by means of a coupling element in the second planetary gear, the planet carrier is connectable to the ring gear.
  • the ring gear of the first planetary gear is connected to the sun gear of the second planetary gear.
  • the sun gear of the first planetary gear and the ring gear of the second planetary gear can each be held by means of a brake.
  • the object of the invention is to provide a simple and efficient powertrain available.
  • the output shaft is connected to a third transmission element of the first planetary gear, wherein the output shaft is drive-connected via a coupling switching element with the first intermediate shaft.
  • the output shaft according to the invention directly, so in particular only by means of a clutch switching element with the first intermediate shaft drive connectable.
  • a transmission element of the first planetary gear is connected to a transmission element of the same name of the second planetary gear, wherein preferably the planet carrier of the first planetary gear is connected to the planet carrier of the second planetary gear.
  • the planet carrier of the first planetary gear is connected to the planet carrier of the second planetary gear.
  • a transmission element of the first planetary gear is connected to a non-same gear element of the second planetary gear, wherein preferably the planet carrier of the first planetary gear is connected to the ring gear of the second planetary gear.
  • the sun gear of a planetary gear may be rotatably connected to the ring gear or the planet carrier of the other planetary gear. But it may also be rotatably connected to the planet carrier of a planetary gear with the ring gear of the other planetary gear.
  • the first intermediate shaft preferably via the clutch switching element designed as a shift sleeve, can be detected.
  • the intermediate shaft is fixed to the housing when the clutch switching element is closed. It is particularly advantageous if the shift sleeve is displaceable between a first, second and third position, wherein in the first position of the shift sleeve, the first intermediate shaft released, held in the second position, the first intermediate shaft, and in the third position, the first intermediate shaft is rotatably connected to the output shaft.
  • the input shaft is connected to a torsional vibration damper. This increases the ride comfort for the vehicle occupants.
  • the dedicated hybrid transmission has a modular construction, wherein in a first module, the planetary gear and preferably also the torsional vibration damper, in a second module, the electric machines and in a third module, the clutch switching element are arranged.
  • the modular design makes it possible to exchange only individual components in a simple and rapid manner.
  • the modular design allows the drive train to be optimally designed for the respective application.
  • a space-saving arrangement of the hybrid transmission can be achieved if the first intermediate shaft disposed within the second intermediate shaft, wherein preferably the output shaft is disposed within the first intermediate shaft.
  • FIG. 1 shows a drive train according to the invention in a first embodiment
  • FIG. 2 shows a drive train according to the invention in a second embodiment
  • FIG. 3 is a driving force-speed diagram of the drive train according to the invention.
  • Fig. 5 is a speed-speed diagram of the invention
  • Fig. 7 is a power-speed diagram of the invention
  • FIGS. 1 and 2 each show a drive train 1 for a motor vehicle, for example a bus, with a dedicated hybrid transmission 2 with an input shaft 3 that can be driven by a prime mover ICE, for example an internal combustion engine, and an output shaft 4, with input 3 and Output shaft 4 on opposite end faces 5, 6 of the dedicated hybrid transmission 2 are arranged.
  • the hybrid transmission 2 has a first electric machine MGI and a second electric machine MG2.
  • the first electric machine MGI is drive-connected to a first planetary gear PG1 and the second electric machine MG2 to a second planetary gear PG2.
  • Both the first planetary gear PG1 and the second planetary gear PG2 each have three gear elements - namely sun gear Sl, S2, Planetenträ- ger PT1, PT2 with planet gears PI, P2, and ring gear Hl, H2 - on.
  • the input shaft 3 is connected to a first element of the first planetary gear PGl.
  • the first electric machine MGI is connected via a first intermediate shaft 7 to a second element of the first planetary gear set PG1 and the second electric machine MG2 is connected via a second intermediate shaft 8 to a first element of the second planetary gear set PG2.
  • a transmission element of the first planetary gear PGl is connected to a transmission element of the second planetary gear PG2.
  • the input shaft is connected to a torsional vibration damper 9.
  • the output shaft 4 is connected to a third gear element of the first planetary gear PGl and drivably connected via a clutch switching element 10 with the first intermediate shaft 7.
  • the clutch switching element 10 is designed as a switching sleeve 11.
  • the first intermediate shaft 7 can be held on the clutch switching element 10, so are connected to the housing 12 of the hybrid transmission 2.
  • De shift sleeve 11 is displaceable between a first I, second II and third position III.
  • first position I of the shift sleeve 11 the first intermediate shaft 7 is released.
  • second position II the first intermediate shaft 7 is held.
  • third position III the first intermediate shaft 7 is rotatably connected to the output shaft 4.
  • the dedicated hybrid transmission 2 has a modular construction.
  • a first module A the two planetary gear PGl, PG2 and the torsional vibration damper 9 are arranged.
  • the two electric machines MGI, MG2 and in a third module C the clutch switching element 10 are arranged.
  • the first electric machine MGI, the second electric machine MG2, the input shaft 3, the output shaft 4 and the two intermediate shafts 7, 8 are formed coaxially with each other, wherein the two intermediate shafts 7, 8 are formed as hollow shafts.
  • the first intermediate shaft 7 is within the second intermediate shaft 8
  • the output shaft 4 is rotatably disposed within the first intermediate shaft 7.
  • Mode 0 pure electric mode for slow driving of the vehicle.
  • the primary drive machine ICE and the first electric machine MGI are deactivated, the clutch switching element 10 is located in the in Fig. 1 and Fig. 2 plotted switching position I.
  • eCVT mode (eCVT-electric continuous variable transmission).
  • the eCVT mode denotes an operation mode of the electromechanical power split-type hybrid transmission 2 in which the gear ratio between the input shaft 3 and the output shaft 4 is determined by the rotational speeds of the first electric machine MGI and the second electric machine MG2.
  • this mode 1 the entire design speed range of the vehicle is available.
  • the clutch switching element 10 is thereby in the shift position I.
  • this mode 1 is used for vehicle speeds v to about 30 km / h.
  • the prime mover ICE, the first electric machine MGI, and the second electric machine MG2 are activated.
  • the first electric machine MGI is operated predominantly as a generator (depending on the driving situation and driving strategy), the second electric machine MG2 mainly as a motor (depending on the driving situation and driving strategy).
  • Mode 2 Parallel Hybrid Mode 1: Mode 2 is used in the vehicle speed range between about 30 km / h and 50 km / h.
  • the first electric machine MGI is deactivated, the second electric machine MG2 is activated and is operated as a motor or as a generator or recuperative (depending on the driving situation and driving strategy).
  • the clutch switching element 10 is in the switching position II.
  • Mode 3 Parallel Hybrid Mode 2: Mode 3 is used in the vehicle speed range between 50 km / h and 80 km / h. In this mode 3, the clutch switching element 10 is in position III. The prime mover ICE is turned on, both the first electric machine MGI, and the second electric machine MG2 are activated and are powered by a motor or regenerative or recuperative (depending on the driving situation and driving strategy).
  • the hybrid transmission 2 thus has two planetary gear PG1, PG2 and two switching functionalities - with a Kupplungsfunktiion and a brake function - on, with switching and clutch function are realized by the positions III and II of the single clutch switching element 10.
  • the actuation of the clutch switching element 10 formed by the shift sleeve 11 may, for example, via an electrical, pneumatic or hydraulic, not shown. see actuator done.
  • the only mechanical operating point with fixed gear ratio in eCVT mode can be arranged in the range of about 30 km / h of vehicle speed. At the mechanical operating point, the rotor of at least one electric machine MGI, MG2 is blocked by the static electromagnetic moment.
  • the output shaft 4 and the sun gear Sl of the first planetary gear PG1 in the position III of the clutch switching element 10 can be rotatably connected, whereby a direct drive with a gear ratio 1 and almost no drive losses is possible.
  • the electric machines MGI and / or MG2 can be used for so-called "boosting" or for energy recovery.
  • Boosting means that in addition to the prime mover ICE, the first MGI and / or the second electric machine MG2 outputs power to the output shaft 4 of the hybrid transmission 2.
  • the second switching connection between one of the electric machines MGI and MG2 and the housing 12 allows an additional gear with slightly reduced compared to the maximum speed with a gear ratio of about 1.3 to 1.6. With the additional gear, the vehicle can be operated purely mechanically in a speed range of about 30 km / h to 50 km / h.
  • driving force F or climbing ability G of the drive train 1 according to the invention over the vehicle speed v are shown.
  • the partially overlapping operating ranges for the described modes 0 to 3 are entered.
  • the rotational speed n is above the vehicle speed v
  • the driving torque T and in FIG. 7 the power P of the prime mover ICE, the first electric machine MGI and the second electric machine MG2 of the embodiment shown in FIG of the drive train 1 according to the invention in each case plotted against the vehicle speed v.
  • the planetary gear PG1, PG2 are operated with stationary ratios in eCVT mode (mode 1), in the embodiment, the transmission ratio of the first planetary gear PG1 -1.7 and the gear ratio of the second planetary gear PG2 is -2.6.
  • the drive train 1 according to the invention is characterized by the following advantages:

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Abstract

The invention relates to a drive train (1) for a vehicle with a hybrid transmission (2), particularly a dedicated hybrid transmission, comprising an input shaft (3) that can be driven by a primary drive machine (ICE) and an output shaft (4), wherein the hybrid transmission (2) comprises a first electrical machine (MG1) and a second electrical machine (MG2), as well as a first planetary gear (PG1) and a second planetary gear (PG2), the first planetary gear (PG1) and the second planetary gear (PG2) each comprise three gear elements, namely a sun wheel (S1; S2), a planet carrier (PT1; PT2) and a ring gear (H1; H2), the input shaft (3) is connected to a first element of the first planetary gear (PG1), the first electrical machine (MG1) is connected to a second element of the first planetary gear (PG1) by means of a first intermediate shaft (7) and the second electrical machine (MG2) is connected to a first element of the second planetary gear (PG2) by means of a second intermediate shaft (8), and a gear element of the first planetary gear (PG1) is connected to a gear element of the second planetary gear (PG2). The output shaft (4) is connected to a third gear element of the first planetary gear (PG1), and the output shaft (4) is connected to the first intermediate shaft (7) in a driving manner by means of a clutch switching element (10).

Description

Antriebsstrang für ein Fahrzeug  Powertrain for a vehicle
Die Erfindung betrifft einen Antriebsstrang für ein Fahrzeug mit einem Hybridgetriebe, insbesondere einem dedizierten Hybridgetriebe, mit einer durch eine Primärantriebsmaschine antreibbaren Eingangswelle und einer Ausgangswelle, wobei das Hybridgetriebe eine erste elektrische Maschine und eine zweite elektrische Maschine, sowie ein erstes Planetengetriebe und ein zweites Planetengetriebe aufweist, wobei das erste Planetengetriebe und das zweite Planetengetriebe jeweils drei Getriebeelemente - nämlich Sonnenrad, Planetenträger und Hohlrad - aufweisen, wobei die Eingangswelle mit einem ersten Element des ersten Planetengetriebes verbunden ist, die erste elektrische Maschine über eine erste Zwischenwelle mit einem zweiten Element des ersten Planetengetriebes und die zweite elektrische Maschine über eine zweite Zwischenwelle mit einem ersten Element des zweiten Planetengetriebes verbunden ist, wobei ein Getriebeelement des ersten Planetengetriebes mit einem Getriebeelement des zweiten Planetengetriebes verbunden ist The invention relates to a drive train for a vehicle having a hybrid transmission, in particular a dedicated hybrid transmission, with an input shaft drivable by a prime mover and an output shaft, the hybrid transmission having a first electric machine and a second electric machine, and a first planetary gear and a second planetary gear wherein the first planetary gear and the second planetary gear each have three gear elements - namely sun gear, planet carrier and ring gear -, wherein the input shaft is connected to a first element of the first planetary gear, the first electric machine via a first intermediate shaft with a second element of the first planetary gear and the second electric machine is connected via a second intermediate shaft with a first element of the second planetary gear, wherein a transmission element of the first planetary gear with a transmission element of the second s planetary gear is connected
Unter Hybridgetrieben werden Getriebe mit bzw. für zumindest zwei Antriebsquellen verstanden, welche alternativ oder gleichzeitig eingesetzt werden. Als dedizier- tes Hybridgetriebe (DHT) werden Getriebe bezeichnet welche mit zumindest zwei Antriebsquellen, insbesondere einer Brennkraftmaschine und zumindest einer elektrischen Maschine ausgestattet sind, welche für die Ausübung ihrer Funktion über den gesamten Auslegungsbereich alle vorhandenen Antriebsquellen benötigen. Bei Wegfall einer dieser Antriebsquellen wäre ein dediziertes Hybridgetriebe nur eingeschränkt funktionsfähig. Im Gegensatz dazu sind Add-on Hybridgetriebe bekannt, welche aus einem herkömmlichen Getriebe bestehen und durch Zusatz oder Erweiterung mittels einer zusätzlichen Antriebsquelle zu Hybridgetrieben umgebaut werden. Dadurch wäre bei Wegfall dieser zusätzlichen Antriebsquelle eine vollständige Funktionsausübung gegeben. Solche Add-on Hybridgetriebe Lösungen sind aber erheblich schwerer, teurer und benötigen mehr Bauraum im Vergleich zu einem dedizierten Hybridgetriebe. Hybrid transmissions are gears with or understood for at least two drive sources, which are used alternatively or simultaneously. As a dedicated hybrid transmission (DHT) are called transmissions which are equipped with at least two drive sources, in particular an internal combustion engine and at least one electric machine, which require all existing drive sources for the exercise of their function over the entire design range. If one of these drive sources ceases, a dedicated hybrid transmission would only be functional to a limited extent. In contrast, add-on hybrid transmissions are known which consist of a conventional transmission and are converted by addition or expansion by means of an additional drive source to hybrid transmissions. As a result, if this additional drive source is omitted, a complete functional exercise would be provided. However, such add-on hybrid transmission solutions are considerably heavier, more expensive and require more space compared to a dedicated hybrid transmission.
Ein dediziertes Hybridgetriebe kann verschiedene Betriebsmodi aufweisen, zum Beispiel serieller Betriebsmodus, paralleler Betriebsmodus, leistungsverzweigter CVT-Betriebsmodus, rein elektrischer Betriebsmodus, rein verbrennungsmotorischer Betriebsmodus. Bei manchen DHT-Getrieben kann auf einen separaten Starter für die Brennkraftmaschine verzichtet werden. Die US 5,931,757 A offenbart einen Antriebsstrang für ein Fahrzeug mit einem elektromechanischen Getriebe mit zwei Betriebsmodi, welches Getriebe drei Planetengetriebe und zwei elektrische Maschinen aufweist, die auf zwei der Planetengetriebe einwirken. Eine Eingangswelle des elektromechanischen Getriebes ist mit einer Brennkraftmaschine verbunden. Zum Schalten ist eine nasse Kupplung und eine nasse Bremse vorgesehen. Diese auch als Allison-Getriebe bekannte kompakte Lösung braucht insbesondere im Betrieb oberhalb einer Fahrzeuggeschwindigkeit von 25 km/h wenig elektrische Energie, wobei das Kennfeld drei rein mechanische Betriebspunkte aufweist. Die elektrischen Maschinen können somit relativ klein dimensioniert werden. Auf Grund der komplexen Konstruktion des Getriebes mit den nassen Kupplungsschaltelementen ist das Getriebe allerdings relativ kostenintensiv und insbesondere für den Einsatz bei Fahrzeugen in Entwicklungsländern weniger geeignet. A dedicated hybrid transmission may have various modes of operation, for example, serial operating mode, parallel operating mode, power split CVT operating mode, pure electrical operating mode, pure combustion engine operating mode. In some DHT transmissions can be dispensed with a separate starter for the internal combustion engine. US 5,931,757 A discloses a powertrain for a vehicle having an electromechanical transmission with two modes of operation, which transmission comprises three planetary gears and two electric machines acting on two of the planetary gears. An input shaft of the electromechanical transmission is connected to an internal combustion engine. For switching a wet clutch and a wet brake is provided. This compact solution, also known as the Allison transmission, requires little electrical energy, in particular during operation above a vehicle speed of 25 km / h, the characteristic map having three purely mechanical operating points. The electrical machines can thus be relatively small dimensions. Due to the complex construction of the transmission with the wet clutch switching elements, however, the transmission is relatively expensive and less suitable for use in vehicles in developing countries.
Die CN 204 055 308 U offenbart ein Hybridgetriebe mit zwei Planetengetrieben und zwei elektrischen Maschinen, wobei jedem Planetengetriebe eine elektrische Maschine zugeordnet ist. Eine durch eine Brennkraftmaschine antreibbare Eingangswelle ist mit dem Planetenträger und die erste elektrische Maschine über eine erste Zwischenwelle mit dem Sonnenrad des ersten Planetengetriebes verbunden. Die zweite elektrische Maschine ist mit dem Sonnenrad und die Ausgangswelle mit dem Planetenträger des zweiten Planetengetriebes verbunden, wobei mittels eines Kupplungselementes beim zweiten Planetengetriebe der Planetenträger mit dem Hohlrad verbindbar ist. Das Hohlrad des ersten Planetengetriebes ist mit dem Sonnenrad des zweiten Planetengetriebes verbunden. Das Sonnenrad des ersten Planetengetriebes und das Hohlrad des zweiten Planetengetriebes können jeweils mittels einer Bremse festgehalten werden. The CN 204 055 308 U discloses a hybrid transmission with two planetary gears and two electric machines, each planetary gear is associated with an electric machine. A drivable by an internal combustion engine input shaft is connected to the planet carrier and the first electric machine via a first intermediate shaft with the sun gear of the first planetary gear. The second electric machine is connected to the sun gear and the output shaft to the planet carrier of the second planetary gear, wherein by means of a coupling element in the second planetary gear, the planet carrier is connectable to the ring gear. The ring gear of the first planetary gear is connected to the sun gear of the second planetary gear. The sun gear of the first planetary gear and the ring gear of the second planetary gear can each be held by means of a brake.
Aufgabe der Erfindung ist es, einen einfachen und effizienten Antriebstrang zur Verfügung zu stellen. The object of the invention is to provide a simple and efficient powertrain available.
Erfindungsgemäß wird dies dadurch erreicht, dass die Ausgangswelle mit einem dritten Getriebeelement des ersten Planetengetriebes verbunden ist, wobei die Ausgangswelle über ein Kupplungsschaltelement mit der ersten Zwischenwelle an- triebsverbindbar ist. Insbesondere ist die Ausgangswelle erfindungsgemäß direkt, also insbesondere nur mittels des einen Kupplungsschaltelements mit der ersten Zwischenwelle antriebsverbindbar. According to the invention this is achieved in that the output shaft is connected to a third transmission element of the first planetary gear, wherein the output shaft is drive-connected via a coupling switching element with the first intermediate shaft. In particular, the output shaft according to the invention directly, so in particular only by means of a clutch switching element with the first intermediate shaft drive connectable.
In einer ersten Ausführungsvariante der Erfindung ist vorgesehen, dass ein Getriebeelement des ersten Planetengetriebes mit einem gleichnamigen Getriebeelement des zweiten Planetengetriebes verbunden ist, wobei vorzugsweise der Planetenträger des ersten Planetengetriebes mit dem Planetenträger des zweiten Planetengetriebes verbunden ist. Unter gleichnamigen Getriebeelementen des Planetengetriebes sind entweder Sonnenräder, Planetenträger oder Hohlräder zu verstehen. Somit sind entweder die Sonnenräder des ersten Planetengetriebes und des zweiten Planetengetriebes, die Planetenträger des ersten Planetengetriebes und des zweiten Planetengetriebes oder die Hohlräder des ersten Planetengetriebes und des zweiten Planetengetriebes miteinander drehfest verbunden. In a first embodiment of the invention, it is provided that a transmission element of the first planetary gear is connected to a transmission element of the same name of the second planetary gear, wherein preferably the planet carrier of the first planetary gear is connected to the planet carrier of the second planetary gear. Under the same transmission elements of the planetary gear are either sun gears, planet carrier or ring gears to understand. Thus, either the sun gears of the first planetary gear and the second planetary gear, the planet carrier of the first planetary gear and the second planetary gear or the ring gears of the first planetary gear and the second planetary gear are rotatably connected with each other.
Gemäß einer zweiten Ausführungsvariante ist ein Getriebeelement des ersten Planetengetriebes mit einem nicht-gleichnamigen Getriebeelement des zweiten Planetengetriebes verbunden ist, wobei vorzugsweise der Planetenträger des ersten Planetengetriebes mit dem Hohlrad des zweiten Planetengetriebes verbunden ist. Beispielsweise kann das Sonnenrad des einen Planetengetriebes mit dem Hohlrad oder dem Planetenträger des anderen Planetengetriebes drehfest verbunden sein. Es kann aber auch der Planetenträger des einen Planetengetriebes mit dem Hohlrad des anderen Planetengetriebes drehfest verbunden sein. According to a second embodiment, a transmission element of the first planetary gear is connected to a non-same gear element of the second planetary gear, wherein preferably the planet carrier of the first planetary gear is connected to the ring gear of the second planetary gear. For example, the sun gear of a planetary gear may be rotatably connected to the ring gear or the planet carrier of the other planetary gear. But it may also be rotatably connected to the planet carrier of a planetary gear with the ring gear of the other planetary gear.
In einer einfachen Ausführungsvariante der Erfindung ist vorgesehen, dass die erste Zwischenwelle, vorzugsweise über das als Schalthülse ausgebildete Kupplungsschaltelement, feststellbar ist. Darunter wird erfindungsgemäß verstanden, dass die Zwischenwelle bei geschlossenem Kupplungsschaltelement gehäusefest ist. Dabei ist es besonders vorteilhaft, wenn die Schalthülse zwischen einer ersten, zweiten und dritten Stellung verschiebbar ist, wobei in der ersten Stellung der Schalthülse die erste Zwischenwelle frei gegeben, in der zweiten Stellung die erste Zwischenwelle festgehalten, und in der dritten Stellung die erste Zwischenwelle mit der Ausgangswelle drehfest verbunden ist. In a simple embodiment of the invention, it is provided that the first intermediate shaft, preferably via the clutch switching element designed as a shift sleeve, can be detected. By this is understood according to the invention that the intermediate shaft is fixed to the housing when the clutch switching element is closed. It is particularly advantageous if the shift sleeve is displaceable between a first, second and third position, wherein in the first position of the shift sleeve, the first intermediate shaft released, held in the second position, the first intermediate shaft, and in the third position, the first intermediate shaft is rotatably connected to the output shaft.
Durch das als Schalthülse ausgebildete Kupplungselement können kostenintensive Synchronkupplungen eingespart werden. Der Antriebsstrang eignet sich somit besonders für den Einsatz in Entwicklungsländer. By trained as a switching sleeve coupling element costly synchronous couplings can be saved. The drive train is therefore particularly suitable for use in developing countries.
Um Drehschwingungen zu unterdrücken ist es vorteilhaft, wenn die Eingangswelle mit einem Torsionsschwingungsdämpfer verbunden ist. Dies erhöht den Fahrkomfort für die Fahrzeuginsassen. In order to suppress torsional vibrations, it is advantageous if the input shaft is connected to a torsional vibration damper. This increases the ride comfort for the vehicle occupants.
Vielseitige Einsatzmöglichkeiten, sowie einfache Wartungstätigkeiten können erreicht werden, wenn das dedizierte Hybridgetriebe einen modulartigen Aufbau aufweist, wobei in einem ersten Modul die Planetengetriebe und vorzugsweise auch der Torsionsschwingungsdämpfer, in einem zweiten Modul die elektrischen Maschinen und in einem dritten Modul das Kupplungsschaltelement angeordnet sind. Der modulare Aufbau ermöglicht es, nur einzelne Komponenten auf einfache und rasche Weise auszutauschen. Weiters gestattet der modulare Aufbau den Antriebsstrang auf den jeweiligen Einsatzzweck optimal auszulegen. Eine platzsparende Anordnung des Hybridgetriebes kann erreicht werden, wenn die erste Zwischenwelle innerhalb der zweiten Zwischenwelle angeordnet, wobei vorzugsweise die Ausgangswelle innerhalb der ersten Zwischenwelle angeordnet ist. Versatile uses, as well as simple maintenance activities can be achieved when the dedicated hybrid transmission has a modular construction, wherein in a first module, the planetary gear and preferably also the torsional vibration damper, in a second module, the electric machines and in a third module, the clutch switching element are arranged. The modular design makes it possible to exchange only individual components in a simple and rapid manner. Furthermore, the modular design allows the drive train to be optimally designed for the respective application. A space-saving arrangement of the hybrid transmission can be achieved if the first intermediate shaft disposed within the second intermediate shaft, wherein preferably the output shaft is disposed within the first intermediate shaft.
Die Erfindung wir im Folgenden anhand der in den nicht einschränkenden Figuren dargestellten Ausführungsvarianten näher erläutert. Darin zeigen schematisch : The invention will be explained in more detail below with reference to the embodiment variants shown in the non-limiting figures. In it show schematically:
Fig. 1 einen erfindungsgemäßen Antriebsstrang in einer ersten Ausführungsvariante; 1 shows a drive train according to the invention in a first embodiment;
Fig. 2 einen erfindungsgemäßen Antriebsstrang in einer zweiten Ausführungsvariante; 2 shows a drive train according to the invention in a second embodiment;
Fig. 3 ein Antriebskraft-Geschwindigkeitsdiagramm des erfindungsgemäßen Antriebsstranges; 3 is a driving force-speed diagram of the drive train according to the invention;
Fig. 4 ein Steigfähigkeits-Geschwindigkeitsdiagramm des erfindungsgemäßen Antriebsstranges; 4 is a gradeability-speed diagram of the drive train according to the invention;
Fig. 5 ein Drehzahl-Geschwindigkeitsdiagramm des erfindungsgemäßen Fig. 5 is a speed-speed diagram of the invention
Antriebsstranges;  Drive train;
Fig. 6 ein Drehmoment-Geschwindigkeitsdiagramm des erfindungsgemäßen Antriebsstranges; und 6 shows a torque-velocity diagram of the drive train according to the invention; and
Fig. 7 ein Leistungs-Geschwindigkeitsdiagramm des erfindungsgemäßen Fig. 7 is a power-speed diagram of the invention
Antriebsstranges.  Drive train.
Funktionsgleiche Teile sind in den Ausführungsvarianten mit gleichen Bezugszeichen bezeichnet. Functionally identical parts are designated in the embodiment variants with the same reference numerals.
Die Fig. 1 und Fig. 2 zeigen jeweils einen Antriebsstrang 1 für ein Kraftfahrzeug, beispielsweise einem Autobus, mit einem dedizierten Hybridgetriebe 2 mit einer durch eine Primärantriebsmaschine ICE - beispielsweise eine Brennkraftmaschine - antreibbaren Eingangswelle 3 und einer Ausgangswelle 4, wobei Eingangs- 3 und Ausgangswelle 4 an einander abgewandten Stirnseiten 5, 6 des dedizierten Hybridgetriebes 2 angeordnet sind. Das Hybridgetriebe 2 weist eine erste elektrische Maschine MGI und eine zweite elektrische Maschine MG2 auf. Die erste elektrische Maschine MGI ist mit einem ersten Planetengetriebe PG1 und die zweite elektrische Maschine MG2 mit einem zweiten Planetengetriebe PG2 antriebsverbunden. Sowohl das erste Planetengetriebe PG1 als auch das zweite Planetengetriebe PG2 weisen jeweils drei Getriebeelemente - und zwar Sonnenrad Sl, S2, Planetenträ- ger PT1, PT2 mit Planetenräder PI, P2, und Hohlrad Hl, H2 - auf. Die Eingangswelle 3 ist mit einem ersten Element des ersten Planetengetriebes PGl verbunden. Die erste elektrische Maschine MGI ist über eine erste Zwischenwelle 7 mit einem zweiten Element des ersten Planetengetriebes PGl und die zweite elektrische Maschine MG2 über eine zweite Zwischenwelle 8 mit einem ersten Element des zweiten Planetengetriebes PG2 verbunden. Ein Getriebeelement des ersten Planetengetriebes PGl ist mit einem Getriebeelement des zweiten Planetengetriebes PG2 verbunden. FIGS. 1 and 2 each show a drive train 1 for a motor vehicle, for example a bus, with a dedicated hybrid transmission 2 with an input shaft 3 that can be driven by a prime mover ICE, for example an internal combustion engine, and an output shaft 4, with input 3 and Output shaft 4 on opposite end faces 5, 6 of the dedicated hybrid transmission 2 are arranged. The hybrid transmission 2 has a first electric machine MGI and a second electric machine MG2. The first electric machine MGI is drive-connected to a first planetary gear PG1 and the second electric machine MG2 to a second planetary gear PG2. Both the first planetary gear PG1 and the second planetary gear PG2 each have three gear elements - namely sun gear Sl, S2, Planetenträ- ger PT1, PT2 with planet gears PI, P2, and ring gear Hl, H2 - on. The input shaft 3 is connected to a first element of the first planetary gear PGl. The first electric machine MGI is connected via a first intermediate shaft 7 to a second element of the first planetary gear set PG1 and the second electric machine MG2 is connected via a second intermediate shaft 8 to a first element of the second planetary gear set PG2. A transmission element of the first planetary gear PGl is connected to a transmission element of the second planetary gear PG2.
Die Eingangswelle ist mit einem Torsionsschwingungsdämpfer 9 verbunden. The input shaft is connected to a torsional vibration damper 9.
Die Ausgangswelle 4 ist mit einem dritten Getriebeelement des ersten Planetengetriebes PGl verbunden und über ein Kupplungsschaltelement 10 mit der ersten Zwischenwelle 7 antriebsverbindbar. Das Kupplungsschaltelement 10 ist als Schalthülse 11 ausgebildet. Die erste Zwischenwelle 7 kann über das Kupplungsschaltelement 10 festgehalten, also mit dem Gehäuse 12 des Hybridgetriebes 2 verbunden werden. The output shaft 4 is connected to a third gear element of the first planetary gear PGl and drivably connected via a clutch switching element 10 with the first intermediate shaft 7. The clutch switching element 10 is designed as a switching sleeve 11. The first intermediate shaft 7 can be held on the clutch switching element 10, so are connected to the housing 12 of the hybrid transmission 2.
De Schalthülse 11 ist zwischen einer ersten I, zweiten II und dritten Stellung III verschiebbar. In der ersten Stellung I der Schalthülse 11 wird die erste Zwischenwelle 7 frei gegeben. In der zweiten Stellung II wird die erste Zwischenwelle 7 festgehalten. In der dritten Stellung III ist die erste Zwischenwelle 7 mit der Ausgangswelle 4 drehfest verbunden. De shift sleeve 11 is displaceable between a first I, second II and third position III. In the first position I of the shift sleeve 11, the first intermediate shaft 7 is released. In the second position II, the first intermediate shaft 7 is held. In the third position III, the first intermediate shaft 7 is rotatably connected to the output shaft 4.
Das dedizierte Hybridgetriebe 2 weist einen modulartigen Aufbau auf. In einem ersten Modul A sind die beiden Planetengetriebe PGl, PG2 und der Torsionsschwingungsdämpfer 9 angeordnet. In einem zweiten Modul B sind die beiden elektrischen Maschinen MGI, MG2 und in einem dritten Modul C das Kupplungsschaltelement 10 angeordnet. The dedicated hybrid transmission 2 has a modular construction. In a first module A, the two planetary gear PGl, PG2 and the torsional vibration damper 9 are arranged. In a second module B, the two electric machines MGI, MG2 and in a third module C, the clutch switching element 10 are arranged.
Mit Ausnahme der Planetenräder PI, P2 der beiden Planetengetriebe PGl, PG2 sind alle drehenden Teile des Hybridgetriebes 2 um eine gemeinsame Drehachse 13 drehbar gelagert. Somit sind die erste elektrische Maschine MGI, die zweite elektrische Maschine MG2, die Eingangswelle 3, die Ausgangswelle 4 und die beiden Zwischenwellen 7, 8 achsgleich zueinander ausgebildet, wobei die beiden Zwischenwellen 7, 8 als Hohlwellen ausgebildet sind. Die erste Zwischenwelle 7 ist innerhalb der zweiten Zwischenwelle 8, die Ausgangswelle 4 ist innerhalb der ersten Zwischenwelle 7 drehbar angeordnet. With the exception of the planet gears PI, P2 of the two planetary gear PGl, PG2 all rotating parts of the hybrid transmission 2 are rotatably mounted about a common axis of rotation. Thus, the first electric machine MGI, the second electric machine MG2, the input shaft 3, the output shaft 4 and the two intermediate shafts 7, 8 are formed coaxially with each other, wherein the two intermediate shafts 7, 8 are formed as hollow shafts. The first intermediate shaft 7 is within the second intermediate shaft 8, the output shaft 4 is rotatably disposed within the first intermediate shaft 7.
Mit dem erfindungsgemäßen Hybridgetriebe 2 lassen sich folgende vier Betriebsmodi mit zwei mechanischen Gängen realisieren : Modus 0 : rein elektrischer Modus für Langsamfahrbetrieb des Fahrzeuges. Die Primärantriebsmaschine ICE und die erste elektrische Maschine MGI sind deaktiviert, das Kupplungsschaltelement 10 befindet sich dabei in der in Fig. 1 und Fig. 2 eingezeichneten Schaltposition I. With the hybrid transmission 2 according to the invention, the following four operating modes can be realized with two mechanical gears: Mode 0: pure electric mode for slow driving of the vehicle. The primary drive machine ICE and the first electric machine MGI are deactivated, the clutch switching element 10 is located in the in Fig. 1 and Fig. 2 plotted switching position I.
Modus 1 : eCVT Modus (eCVT-electric continuous variable transmission). Der eCVT Modus bezeichnet einen Betriebsmodus des elektromechanischen leistungsver- zweigenden Hybridgetriebes 2, in dem das Übersetzungsverhältnis zwischen der Eingangswelle 3 und der Ausgangswelle 4 von den Drehzahlen der ersten elektrischen Maschine MGI und der zweiten elektrischen Maschine MG2 bestimmt wird. In diesem Modus 1 ist das gesamte auslegungsgemäße Geschwindigkeitsspektrum des Fahrzeuges verfügbar. Das Kupplungsschaltelement 10 befindet sich dabei in der Schaltposition I. Vorzugsweise wird dieser Modus 1 für Fahrzeuggeschwindigkeiten v bis etwa 30 km/h eingesetzt. In diesem Modus 1 sind die Primärantriebsmaschine ICE, die erste elektrische Maschine MGI und die zweite elektrische Maschine MG2 aktiviert. Die erste elektrische Maschine MGI wird überwiegend generatorisch (je nach Fahrsituation und Fahrstrategie), die zweite elektrische Maschine MG2 überwiegend motorisch (je nach Fahrsituation und Fahrstrategie) betrieben. Mode 1: eCVT mode (eCVT-electric continuous variable transmission). The eCVT mode denotes an operation mode of the electromechanical power split-type hybrid transmission 2 in which the gear ratio between the input shaft 3 and the output shaft 4 is determined by the rotational speeds of the first electric machine MGI and the second electric machine MG2. In this mode 1, the entire design speed range of the vehicle is available. The clutch switching element 10 is thereby in the shift position I. Preferably, this mode 1 is used for vehicle speeds v to about 30 km / h. In this mode 1, the prime mover ICE, the first electric machine MGI, and the second electric machine MG2 are activated. The first electric machine MGI is operated predominantly as a generator (depending on the driving situation and driving strategy), the second electric machine MG2 mainly as a motor (depending on the driving situation and driving strategy).
Modus 2 : Parallel-Hybrid-Modus 1 : Der Modus 2 wird im Geschwindigkeitsbereich des Fahrzeuges zwischen etwa 30 km/h und 50 km/h verwendet. Die erste elektrische Maschine MGI ist deaktiviert, die zweite elektrische Maschine MG2 ist aktiviert und wird motorisch oder generatorisch bzw. rekuperativ (je nach Fahrsituation und Fahrstrategie) betrieben. Das Kupplungsschaltelement 10 befindet sich in der Schaltposition II . Mode 2: Parallel Hybrid Mode 1: Mode 2 is used in the vehicle speed range between about 30 km / h and 50 km / h. The first electric machine MGI is deactivated, the second electric machine MG2 is activated and is operated as a motor or as a generator or recuperative (depending on the driving situation and driving strategy). The clutch switching element 10 is in the switching position II.
Modus 3 : Parallel-Hybrid-Modus 2 : Der Modus 3 wird im Geschwindigkeitsbereich des Fahrzeuges zwischen 50 km/h und 80 km/h eingesetzt. In diesem Modus 3 befindet sich das Kupplungsschaltelement 10 in der Position III. Die Primärantriebsmaschine ICE ist eingeschaltet, sowohl die erste elektrische Maschine MGI, als auch die zweite elektrische Maschine MG2 sind aktiviert und werden motorisch oder generatorisch bzw. rekuperativ (je nach Fahrsituation und Fahrstrategie) betrieben. Mode 3: Parallel Hybrid Mode 2: Mode 3 is used in the vehicle speed range between 50 km / h and 80 km / h. In this mode 3, the clutch switching element 10 is in position III. The prime mover ICE is turned on, both the first electric machine MGI, and the second electric machine MG2 are activated and are powered by a motor or regenerative or recuperative (depending on the driving situation and driving strategy).
Das Hybridgetriebe 2 weist also zwei Planetengetriebe PG1, PG2 und zwei Schaltfunktionalitäten - und zwar mit einer Kupplungsfunktiion und einer Bremsfunktion - auf, wobei Schalt- und Kupplungsfunktion durch die Stellungen III bzw. II des einzigen Kupplungsschaltelementes 10 realisiert werden. Die Betätigung des durch die Schalthülse 11 gebildeten Kupplungsschaltelementes 10 kann beispielsweise über einen nicht weiter dargestellten elektrischen, pneumatischen oder hydrauli- sehen Aktuator erfolgen. Der einzige mechanische Betriebspunkt mit fester Übersetzung im eCVT-Modus kann im Bereich von etwa 30 km/h der Fahrzeuggeschwindigkeit angeordnet werden. Im mechanischen Betriebspunkt wird der Rotor zumindest einer elektrischen Maschine MGI, MG2 durch das statische elektromagnetische Moment blockiert. In diesem Punkt erreicht der Leistungsfluss zwischen dieser elektrischen Maschine MGI, MG2 und der mit dieser elektrisch verbundenen Batterie ein Minimum, wodurch der mechanische Gesamt-Wirkungsgrad des Hybridgetriebes 2 erhöht wird. Die Leistungsverzweigungscharakteristik des Hybridgetriebes 2 setzt in diesem Betriebspunkt so wenig elektrische Leistung wie notwendig ein. The hybrid transmission 2 thus has two planetary gear PG1, PG2 and two switching functionalities - with a Kupplungsfunktiion and a brake function - on, with switching and clutch function are realized by the positions III and II of the single clutch switching element 10. The actuation of the clutch switching element 10 formed by the shift sleeve 11 may, for example, via an electrical, pneumatic or hydraulic, not shown. see actuator done. The only mechanical operating point with fixed gear ratio in eCVT mode can be arranged in the range of about 30 km / h of vehicle speed. At the mechanical operating point, the rotor of at least one electric machine MGI, MG2 is blocked by the static electromagnetic moment. At this point, the power flow between this electric machine MGI, MG2 and the battery electrically connected thereto reaches a minimum, thereby increasing the overall mechanical efficiency of the hybrid transmission 2. The power split characteristic of the hybrid transmission 2 employs as little electric power as necessary at this operating point.
Daraus würde sich der Nachteil ergeben, dass bei Höchstgeschwindigkeit des Fahrzeuges eine hohe elektrische Leistung im eCVT-Modus erforderlich wäre. Um diesen Nachteil zu vermeiden ist beim erfindungsgemäßen Hybridgetriebe 2 vorgesehen, dass die Ausgangswelle 4 und das Sonnenrad Sl des ersten Planetengetriebes PG1 in der Stellung III des Kupplungsschaltelementes 10 drehverbunden werden kann, wodurch ein Direkttrieb mit einem Übersetzungsverhältnis 1 und fast keinen Antriebsverlusten ermöglicht wird. Dadurch kann ein optimaler Wirkungsgrad bei höheren Geschwindigkeiten des Fahrzeuges erreicht werden, wobei die elektrischen Maschinen MGI und/oder MG2 zum sogenannten "Boosten" oder zur Energierückgewinnung eingesetzt werden können. "Boosten" bedeutet, dass zusätzlich zur Primärantriebsmaschine ICE die erste MGI und/oder die zweite elektrische Maschine MG2 Leistung an die Ausgangswelle 4 des Hybridgetriebes 2 abgibt. This would result in the disadvantage that at high speed of the vehicle high electrical power would be required in eCVT mode. To avoid this disadvantage is provided in the hybrid transmission 2 according to the invention that the output shaft 4 and the sun gear Sl of the first planetary gear PG1 in the position III of the clutch switching element 10 can be rotatably connected, whereby a direct drive with a gear ratio 1 and almost no drive losses is possible. As a result, optimum efficiency can be achieved at higher speeds of the vehicle, wherein the electric machines MGI and / or MG2 can be used for so-called "boosting" or for energy recovery. "Boosting" means that in addition to the prime mover ICE, the first MGI and / or the second electric machine MG2 outputs power to the output shaft 4 of the hybrid transmission 2.
Die zweite Schaltverbindung zwischen einer der elektrischen Maschinen MGI und MG2 und dem Gehäuse 12 ermöglicht einen zusätzlichen Gang mit im Vergleich zum Höchstgang leicht verminderten Drehzahlen mit einem Übersetzungsverhältnis von etwa 1, 3 bis 1,6. Mit dem zusätzlichen Gang kann das Fahrzeug rein mechanisch in einem Geschwindigkeitsbereich von etwa 30 km/h bis 50 km/h betrieben werden. The second switching connection between one of the electric machines MGI and MG2 and the housing 12 allows an additional gear with slightly reduced compared to the maximum speed with a gear ratio of about 1.3 to 1.6. With the additional gear, the vehicle can be operated purely mechanically in a speed range of about 30 km / h to 50 km / h.
Im in Fig. 1 gezeigten ersten Ausführungsbeispiel ist ein Getriebeelement - hier der Planetenträger PT1 - des ersten Planetengetriebes PG1 mit einem gleichnamigen Getriebeelement - also dem Planetenträger PT2 - des zweiten Planetengetriebes PG2 verbunden. In the first embodiment shown in Fig. 1, a transmission element - here the planet carrier PT1 - the first planetary gear PG1 with a transmission element of the same - ie the planet carrier PT2 - the second planetary gear PG2 connected.
Im in Fig. 2 dargestellten zweiten Ausführungsbeispiel ist ein Getriebeelement - hier der Planetenträger PT1 - des ersten Planetengetriebes PG1 mit einem nichtgleichnamigen Getriebeelement - hier dem Hohlrad H2 - des zweiten Planetengetriebes PG2 verbunden. In Fig. 3 und Fig. 4 sind Antriebskraft F bzw. Steigfähigkeit G des erfindungsgemäßen Antriebsstranges 1 über der Fahrzeuggeschwindigkeit v dargestellt. Dabei sind die sich zum Teil überlappenden Betriebsbereiche für die beschriebenen Modi 0 bis 3 eingetragen. In the second embodiment shown in Fig. 2, a transmission element - here the planet carrier PT1 - the first planetary gear PG1 with a nichtgleichnamigen transmission element - here the ring gear H2 - the second planetary gear PG2 connected. In FIG. 3 and FIG. 4, driving force F or climbing ability G of the drive train 1 according to the invention over the vehicle speed v are shown. The partially overlapping operating ranges for the described modes 0 to 3 are entered.
In Fig. 5 ist die Drehzahl n über der Fahrzeuggeschwindigkeit v, in Fig. 6 das Antriebsdrehmoment T und in Fig. 7 die Leistung P der Primärantriebsmaschine ICE, der ersten elektrischen Maschine MGI und der zweiten elektrischen Maschine MG2 der in Fig. 1 dargestellten Ausführungsvariante des erfindungsgemäßen Antriebsstranges 1 jeweils über der Fahrzeuggeschwindigkeit v aufgetragen. Die Planetengetriebe PG1, PG2 werden dabei mit stationären Übersetzungsverhältnissen im eCVT-Modus (Modus 1) betrieben, wobei im Ausführungsbeispiel das Übersetzungsverhältnis des ersten Planetengetriebes PG1 -1,7 und das Übersetzungsverhältnis des zweiten Planetengetriebes PG2 -2,6 beträgt. In den Diagrammen sind Betriebsweisen mit unterschiedlichen Drehzahlen n der Primärantriebsmaschine ICE dargestellt, wobei mit strichlierten Linien eine Betriebsweise mit einer Drehzahl n der Primärantriebsmaschine ICE von 1300 1/min und mit voll ausgezogenen Linien ein Betrieb mit einer Drehzahl n der Primärantriebsmaschine ICM von 2500 1/min eingetragen ist. Mit "+" ist eine positive Drehzahl, Drehmoment oder Leistung gekennzeichnet, und mit "-" eine negative Drehzahl, Drehmoment oder Leistung der Maschinen ICE, MGI, MG2 angedeutet. In FIG. 5, the rotational speed n is above the vehicle speed v, in FIG. 6 the driving torque T and in FIG. 7 the power P of the prime mover ICE, the first electric machine MGI and the second electric machine MG2 of the embodiment shown in FIG of the drive train 1 according to the invention in each case plotted against the vehicle speed v. The planetary gear PG1, PG2 are operated with stationary ratios in eCVT mode (mode 1), in the embodiment, the transmission ratio of the first planetary gear PG1 -1.7 and the gear ratio of the second planetary gear PG2 is -2.6. Operating modes with different speeds n of the prime mover ICE are shown in the diagrams, with dashed lines showing an operation with a speed n of the prime mover ICE of 1300 rpm and with solid lines an operation with a speed n of the prime mover ICM of 2500 1 / min is registered. With "+" is a positive speed, torque or power marked, and with "-" a negative speed, torque or power of the engine ICE, MGI, MG2 indicated.
Im Vergleich zu dem beschriebenen Stand der Technik zeichnet sich der erfindungsgemäße Antriebsstrang 1 durch folgende Vorteile aus: Compared to the described prior art, the drive train 1 according to the invention is characterized by the following advantages:
• kompakte und einfaches mechanische Bauweise; • compact and simple mechanical design;
• geringer Platzbedarf;  • little need for space;
• geringe Fertigungskosten;  • low production costs;
• gute Wirkungsgrade, insbesondere im Einsatz bei Autobussen, sowohl im innerstädtischen Bereich, als auch im Überlandbereich.  • good efficiencies, especially in busses, both in urban areas and in rural areas.

Claims

P A T E N T A N S P R Ü C H E PATENT APPLICATIONS
1. Antriebsstrang (1) für ein Fahrzeug mit einem Hybridgetriebe (2), insbesondere einem dedizierten Hybridgetriebe, mit einer durch eine Primärantriebsmaschine (ICE) antreibbaren Eingangswelle (3) und einer Ausgangswelle (4), wobei das Hybridgetriebe (2) eine erste elektrische Maschine (MGI) und eine zweite elektrische Maschine (MG2), sowie ein erstes Planetengetriebe (PG1) und ein zweites Planetengetriebe (PG2) aufweist, wobei das erste Planetengetriebe (PG1) und das zweite Planetengetriebe (PG2) jeweils drei Getriebeelemente - nämlich Sonnenrad (Sl; S2), Planetenträger (PTl; PT2) und Hohlrad (Hl; H2) - aufweisen, wobei die Eingangswelle (3) mit einem ersten Element des ersten Planetengetriebes (PG1) verbunden ist, die erste elektrische Maschine (MGI) über eine erste Zwischenwelle (7) mit einem zweiten Element des ersten Planetengetriebes (PG1) und die zweite elektrische Maschine (MG2) über eine zweite Zwischenwelle (8) mit einem ersten Element des zweiten Planetengetriebes (PG2) verbunden ist, wobei ein Getriebeelement des ersten Planetengetriebes (PG1) mit einem Getriebeelement des zweiten Planetengetriebes (PG2) verbunden ist, dadurch gekennzeichnet, dass die Ausgangswelle (4) mit einem dritten Getriebeelement des ersten Planetengetriebes (PG1) verbunden ist, wobei die Ausgangswelle (4) über ein Kupplungsschaltelement (10) mit der ersten Zwischenwelle (7) antriebsver- bindbar ist. A powertrain (1) for a vehicle having a hybrid transmission (2), particularly a dedicated hybrid transmission, having an input shaft (3) drivable by a prime mover (ICE) and an output shaft (4), the hybrid transmission (2) having a first electrical transmission Machine (MGI) and a second electric machine (MG2), and a first planetary gear (PG1) and a second planetary gear (PG2), wherein the first planetary gear (PG1) and the second planetary gear (PG2) each have three transmission elements - namely sun gear ( Sl; S2), planet carrier (PTl; PT2) and ring gear (Hl; H2) -, wherein the input shaft (3) is connected to a first element of the first planetary gear (PG1), the first electric machine (MGI) via a first Intermediate shaft (7) with a second element of the first planetary gear (PG1) and the second electric machine (MG2) via a second intermediate shaft (8) with a first element of the second planetary gear (PG2 ), wherein a transmission element of the first planetary gear (PG1) is connected to a transmission element of the second planetary gear (PG2), characterized in that the output shaft (4) is connected to a third transmission element of the first planetary gear (PG1), wherein the output shaft (4) via a coupling switching element (10) with the first intermediate shaft (7) is drive-connectable.
2. Antriebsstrang (1) nach Anspruch 1, dadurch gekennzeichnet, dass ein Getriebeelement des ersten Planetengetriebes (PG1) mit einem gleichnamigen Getriebeelement des zweiten Planetengetriebes (PG2) verbunden ist, wobei vorzugsweise der Planetenträger (PTl) des ersten Planetengetriebes (PG1) mit dem Planetenträger (PT2) des zweiten Planetengetriebes (PG2) verbunden ist. 2. Drive train (1) according to claim 1, characterized in that a transmission element of the first planetary gear (PG1) is connected to a transmission element of the same type of the second planetary gear (PG2), wherein preferably the planet carrier (PTL) of the first planetary gear (PG1) with the Planet carrier (PT2) of the second planetary gear (PG2) is connected.
3. Antriebsstrang (1) nach Anspruch 1, dadurch gekennzeichnet, dass ein Getriebeelement des ersten Planetengetriebes (PG1) mit einem nicht-gleichnamigen Getriebeelement des zweiten Planetengetriebes (PG2) verbunden ist, wobei vorzugsweise der Planetenträger (PTl) des ersten Planetengetriebes (PG1) mit dem Hohlrad (H2) des zweiten Planetengetriebes (PG2) verbunden ist. 3. Drive train (1) according to claim 1, characterized in that a transmission element of the first planetary gear (PG1) is connected to a non-eponymous transmission element of the second planetary gear (PG2), wherein preferably the planet carrier (PTL) of the first planetary gear (PG1) is connected to the ring gear (H2) of the second planetary gear (PG2).
4. Antriebsstrang (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die erste Zwischenwelle (7), vorzugsweise über das als Schalthülse (11) ausgebildete Kupplungsschaltelement (10), feststellbar ist. 4. Drive train (1) according to one of claims 1 to 3, characterized in that the first intermediate shaft (7), preferably via the switching sleeve (11) formed as a coupling switching element (10), can be detected.
5. Antriebsstrang (1) nach Anspruch 4, dadurch gekennzeichnet, dass die Schalthülse (11) zwischen einer ersten (I), zweiten (II) und dritten Stellung (III) verschiebbar ist, wobei in der ersten Stellung (I) der Schalthülse (11) die erste Zwischenwelle (7) frei gegeben, in der zweiten Stellung (II) die erste Zwischenwelle (7) festgehalten, und in der dritten Stellung (III) die erste Zwischenwelle (7) mit der Ausgangswelle (4) drehfest verbunden ist. 5. Drive train (1) according to claim 4, characterized in that the shift sleeve (11) between a first (I), second (II) and third position (III) is displaceable, wherein in the first position (I) of the shift sleeve ( 11), the first intermediate shaft (7) released, in the second position (II) the first intermediate shaft (7) held, and in the third position (III), the first intermediate shaft (7) with the output shaft (4) is rotatably connected.
6. Antriebsstrang (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Eingangswelle (3) mit einem Torsionsschwingungs- dämpfer (9) verbunden ist. 6. Drive train (1) according to one of claims 1 to 5, characterized in that the input shaft (3) with a torsional vibration damper (9) is connected.
7. Antriebsstrang (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Hybridgetriebe (2) einen modulartigen Aufbau aufweist, wobei in einem ersten Modul (A) die Planetengetriebe (PG1, PG2) und vorzugsweise auch der Torsionsschwingungsdämpfer (9), in einem zweiten Modul (B) die elektrischen Maschinen (MGI, MG2) und in einem dritten Modul (C) das Kupplungsschaltelement (10) angeordnet sind. 7. Drive train (1) according to one of claims 1 to 6, characterized in that the hybrid transmission (2) has a modular construction, wherein in a first module (A), the planetary gear (PG1, PG2) and preferably also the torsional vibration damper (9 ), in a second module (B) the electric machines (MGI, MG2) and in a third module (C), the clutch switching element (10) are arranged.
8. Antriebsstrang (1) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die erste (7) und die zweite Zwischenwelle (8) konzentrisch zueinander ausgebildet sind, wobei vorzugsweise die erste Zwischenwelle (7) innerhalb der zweiten Zwischenwelle (8) drehbar angeordnet ist. 8. Drive train (1) according to one of claims 1 to 7, characterized in that the first (7) and the second intermediate shaft (8) are formed concentrically with each other, wherein preferably the first intermediate shaft (7) within the second intermediate shaft (8) is rotatably arranged.
9. Antriebsstrang (1) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Ausgangswelle (4) konzentrisch zur ersten (7) und zweiten Zwischenwelle (8) ausgebildet ist, wobei vorzugsweise die Ausgangswelle (4) innerhalb der ersten Zwischenwelle (7) drehbar angeordnet ist. 9. Drive train (1) according to one of claims 1 to 8, characterized in that the output shaft (4) concentric with the first (7) and second intermediate shaft (8) is formed, wherein preferably the output shaft (4) within the first intermediate shaft ( 7) is rotatably arranged.
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