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WO2019197336A1 - Vehicle comprising a transfer module - Google Patents

Vehicle comprising a transfer module Download PDF

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Publication number
WO2019197336A1
WO2019197336A1 PCT/EP2019/058804 EP2019058804W WO2019197336A1 WO 2019197336 A1 WO2019197336 A1 WO 2019197336A1 EP 2019058804 W EP2019058804 W EP 2019058804W WO 2019197336 A1 WO2019197336 A1 WO 2019197336A1
Authority
WO
WIPO (PCT)
Prior art keywords
module
shaft
switching unit
gear
vehicle according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2019/058804
Other languages
German (de)
French (fr)
Inventor
Gerhard Hofer
Daniel Lindvai-Soos
Daniel Prix
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Magna Powertrain GmbH and Co KG
Original Assignee
Magna Powertrain GmbH and Co KG
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 Magna Powertrain GmbH and Co KG filed Critical Magna Powertrain GmbH and Co KG
Publication of WO2019197336A1 publication Critical patent/WO2019197336A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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 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 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
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
    • 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
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/02—Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, substantially in or parallel to the longitudinal centre line of the vehicle
    • 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
    • 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 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 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 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 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
    • 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 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 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 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
    • 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 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 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 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
    • 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
    • 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
    • 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 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 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 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 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
    • 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
    • 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 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 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
    • B60K2006/4808—Electric machine connected or connectable to gearbox output shaft
    • 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
    • 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 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 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
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • 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
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
    • B60K23/0808—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles for varying torque distribution between driven axles, e.g. by transfer clutch
    • B60K2023/0816—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles for varying torque distribution between driven axles, e.g. by transfer clutch for varying front-rear torque distribution with a central differential
    • B60K2023/0833—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles for varying torque distribution between driven axles, e.g. by transfer clutch for varying front-rear torque distribution with a central differential for adding torque to the rear wheels
    • 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
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
    • B60K2023/085—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles automatically actuated
    • B60K2023/0858—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles automatically actuated with electric means, e.g. electro-hydraulic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • 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
    • B60Y2400/40—Actuators for moving a controlled member
    • B60Y2400/405—Electric motors actuators
    • 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
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/421—Dog type clutches or 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 vehicle with a longitudinal engine and permanent Vorderachs- drive, which has an internal combustion engine and an electric machine, wherein a module shares drive torque demand on two drive axles ver.
  • central differentials are used. These have a fixed torque distribution between the front and rear axles. An advantage of central differential is that the torque can be distributed even with kinematic slippage.
  • a module for a hybrid four-wheel drive is known.
  • a module is provided with at least three shafts, which is designed as Summierge gear.
  • the drive power between the primary and Se kundärachse is distributed.
  • the four-wheel speed is to be realized and the possibility of recuperation to be given.
  • the object is achieved by a vehicle with a longitudinal engine and permanent front-axle drive, which has an internal combustion engine and an electric machine, wherein a module distributes drive torques on demand,
  • the module is connected to two shafts, wherein a main shaft as an input shaft, a secondary shaft serves as a drive shaft for the rear axle and an intermediate shaft of the electric machine in the module torque can be applied,
  • the module comprises a reduction gear and a whosummiergetriebe and the summed output power of the whosummiergetriebes abuts the secondary shaft and / or the main shaft, wherein a switching unit or a switching element switched the summed output power of the whosummiergetriebes between a front-wheel drive mode and a four-wheel drive mode.
  • the solution combines the advantages of friction clutch systems and differential systems with a fully variable torque distribution between the primary and secondary axles, even with the speed differences between the axles.
  • the use of a two-speed gearbox as a hybrid transmission solves the dilemma of the electric drive, so that a highly geared gear the requirements after electric driving becomes fair.
  • the low gear ratio can be designed for an ideal energy recovery process.
  • the majority of the drive power for example: 90% of the internal combustion engine via the cardan shaft and a small part, for example: 10% of the electrical see machine with 48V, for example.
  • the electrical machine controls the set torque, the total torque delivered at the secondary axis. When occurring speed differences between the front and rear axles, the torque between the front and Hin terachse can still be distributed fully variable.
  • the switching unit acts on the secondary shaft.
  • a further advantageous solution is achieved by the switching element by braking from a planet carrier of whosummiergetriebes switched.
  • the Zwetician is used to obtain high torque in all-electric mode, the planet carrier of the planetary gear is braked and a neutral gear is engaged.
  • the design of the switching element is positive, frictional or non-positive.
  • the control can be configured via a common shift actuator or separate shift actuators.
  • the optional synchronization of the switching unit allows the decoupling of the Se kundärantriebsstrangs.
  • the secondary drive train the rear axle
  • the decoupling of the secondary powertrain reduces the losses in a pure two-wheeler operation.
  • the compound is a positive Ver bond and can be used with a frictional connection in the switching unit.
  • the compound is a reibschlüs sige compound and can be used with a positive connection in the switching unit.
  • the switching unit also has a neutral position.
  • the electric machine can also be coupled directly to the wheels of an axle of the vehicle and thus the mild hybrid functionality consisting of additional power, energy recovery, electric driving can be represented.
  • FIG. 1 shows a schematic representation of the exemplary embodiment
  • FIG. 2 shows an exemplary vehicle
  • FIG. 3 shows an alternative solution to FIG. 1.
  • Target vehicles for which the invention can be used are vehicles with longitudinal engine architecture and permanent Vorderachsantrieb, in addition to the übli chen 12V electrical system also have a 48V electrical system and an electrical machine 2.
  • the 48V powered electrical machine 2 is a part, eg 10%, the total power to the secondary axle, the rear axle 8, Kings deliver NEN.
  • FIG 2 such a permanent front-wheel drive vehicle is shown schematically.
  • An internal combustion engine 6 is installed longitudinally in the vehicle and connected directly to a main transmission 7.
  • a module 1 is connected in this case of game.
  • the main transmission 7 is drivingly connected to the front axle 9, which is schematically illustrated by the oblique connection in the drawing.
  • a main shaft 3 is driven.
  • the secondary shaft 4 is drivingly connected to the rear axle 8.
  • the rear axle has in this embodiment, a switchable and breakable connection 70, with the drive on the rear axle can be decoupled.
  • FIG. 1 shows a module 1 according to the invention.
  • the module 1 according to the invention consists essentially of a beauticiansgetriebe 11, a reduction gear 12 and an electric machine 2.
  • the electric machine 2 is seated on an intermediate shaft 5.
  • the module 1 represents a superposition gear, which fulfills a certain distribution function of torque.
  • the module is arranged directly on the main transmission in FIG. 2, but for its function it can also be mounted along the secondary axle 4 or on the rear axle 8.
  • the electric machine 2 drives the reduction gear 12, more precisely in the first stage 26 a of a spur gear 26, which then drives the second stage 26 b of the front wheel set.
  • the electric machine 2 is connected directly or indirectly in the exemplary embodiment via the second stage 26 b of the spur gear set with a sun gear 21 of the sausum miergetriebes 11 that provides the supporting torque available, which defines the torque of the secondary 4.
  • the whosummiergetriebe is constructed as a planetary drive.
  • the ring gear 24 of the power summation gear 11 is drivingly connected to the main shaft 3.
  • the summed torque of sun 21 and ring gear 24 is transmitted to the secondary shaft 4 via a planetary carrier 23.
  • the module has a switching unit 50, which is arranged coaxially with the intermediate shaft 5.
  • the switching unit 50 is angesteu ert via a switching actuator 53 and has three switching positions, these connections by positive Ver 52, such as dog clutches, are produced.
  • the positive connection 52 for coupling the switching Stel lungs or at least the switching position for the all-wheel drive can be supplemented or replaced by a friction-locked connection 51 to synchronize the secondary drive train, so the secondary shaft 4, when connecting to it possible.
  • an electromotive actuator 53 can be used.
  • the switching unit 50 is shown schematically, the components, such as the electromotive actuator 53 or the positive or frictional Verbindun conditions 52, 51 are not shown in detail.
  • the switching unit 50 switches in the first position the all-wheel mode when the positive or frictional connection 52, 51 is engaged to the right.
  • the torque is constituting right on the two drivable axles, namely the front axle 9 and the rear axle 8, distributed.
  • the internal combustion engine 6 is drivingly connected to the ring gear 24 of the planetary gear 11.
  • the electric machine 2 is drivingly connected to the sun 21 of the planetary gear 11 in the first position via the switching unit 50. In this way, torque is transmitted to the secondary shaft 4 via the tarpaulin carrier 23.
  • the positive or frictional connections 52, 51 are engaged on the left and the vehicle is operated via the front axle 9, or in the generator mode or purely electrically.
  • the switching unit 50 can Also, the compound 70 are opened to make herzu pure two-wheel drive.
  • the electric machine 2 can then be operated in the generator mode and convert corresponding mechanical energy into electrical energy and store it in a battery.
  • This operating mode is shown in position 2 in a switching unit 50.
  • the planetary drive runs in the two-wheel drive / recuperation mode in the block, so that drag losses in the planetary drive are reduced to a minimum and maximum recuperation performance he let.
  • the optional device for decommissioning the secondary drive strand by a frictional connection in the switching unit 50 to the rear axle in the module 1 with a positive connection 70 on a side shaft on the rear axle 8 or with a positive connection in the Weg unit 50 of the module and a frictional connection 70 are shown on a side shaft on the rear axle 8 to enable the connection of the four-wheel drive while driving.
  • the secondary shaft 4 is not connected to the module 1 to drive.
  • the planet carrier 23 of the planetary gear 11 is drivingly connected via the planets with the sun 21 and thus with the Reduktions- onsgetriebe 12.
  • the planet carrier 23 is not, as in the first position of the switching unit 50, drivingly connected to the Se kundärwelle 4.
  • the internal combustion engine 6 acts on the ring gear 24 of the planetary gear 11.
  • the torque of the electrical ma chine 2 and / or the internal combustion engine 6 to the primary axis, ie the front axle 9, of the vehicle are performed.
  • the positive or frictional element 52 is in egg ner center position and thus in a neutral mode.
  • the third position of the switching unit 50 thus represents a neutral position and is a position between the first position and the second position. That a circuit from the first position to the second position, or vice versa, always takes place via the third position.
  • the planet carrier 23 of the planetary gear 11 is neither drive effective with the Se kundärwelle 4 of the vehicle nor connected to the sun 21 of the planetary gear 11.
  • the neutral position i. the third position of the switching unit 50, a synchronization of the waves, namely the main shaft 3, the secondary shaft 4 and he intermediate shaft 5, take place.
  • FIG. 3 shows an alternative solution.
  • the optional two-speed solution can be implemented by the switch unit 50, the position 3, the neutral mode, is inserted and the tarpaulin ten ought 23 of the buttersumm istsgetriebes 11 is braked.
  • the planet carrier 23 is connected by means of the switching device 71 form-, friction or force-fitting with a fixed component.
  • the switching device 71 can be controlled with its own simple actuator or is drivingly connected to the switching actuator 53 of the switching unit, so that for both switching elements, the switching device 71 and the switching unit 50 only one
  • Shift actuator 53 is required.
  • the planet carrier 23 can be braked to a mass Festge, whereby it is prevented in its rotation. In this way it is possible, via the neutral position, to represent, in addition to the gear realized via the second position of the switching unit 50, a highly translating gear for the transmission of the torque of the electric machine 2.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

The invention relates to a vehicle having a longitudinal engine and a permanent front-axle drive, said vehicle comprising an internal combustion engine (6) and an electrical machine (2), wherein a module (1) distributes drive torques as needed, the module (1) being connected to two shafts, a main shaft (3) serving as the input shaft of the module, a secondary shaft (4) serving as the drive shaft for the rear axle (8), and wherein an intermediary shaft (5) can apply a torque from the electrical machine (2) to the module (1). According to the invention, the module (1) has a reduction gear (12) and a power summation gear (11) and the summed output power of the power summation gear (11) is applied to the secondary shaft (4) and/or the main shaft (3), wherein a switching unit (50) or a switching element (71) switches the summed output power of the power summation gear (11) between a front-axle drive mode and an all-wheel drive mode.

Description

Fahrzeug mit einem Verteilermodul  Vehicle with a distributor module

Die Erfindung betrifft ein Fahrzeug mit Längsmotor und permanenten Vorderachs- antrieb, das einen Verbrennungsmotor und eine elektrische Maschine aufweist, wobei ein Modul Antriebsmomente bedarfsgerecht auf zwei Antriebsachsen ver teilt. The invention relates to a vehicle with a longitudinal engine and permanent Vorderachs- drive, which has an internal combustion engine and an electric machine, wherein a module shares drive torque demand on two drive axles ver.

Stand der Technik Auf Grund strikterer Anforderungen der Abgasnormen für PKWs ist es erforderlich, insbesondere bei allradgetriebenen Fahrzeugen, effizienzsteigernde Maßnahmen umzusetzen. PRIOR ART Due to stricter requirements of the exhaust gas standards for passenger cars, it is necessary to implement efficiency-increasing measures, in particular in the case of all-wheel drive vehicles.

Der zusätzliche Kraftstoffverbrauch, und die daraus entstehende Abgaserhöhung, von allradgetriebenen Fahrzeugen kann durch Abschalten der Allradfähigkeit ein geschränkt werden. Bei aktuellen Lösungen, z.B. reibkupplungsbasierende Mo duln, wird dies durch komplettes Öffnen der Reiblamellenkupplung realisiert. The additional fuel consumption, and the resulting increase in exhaust gas, of all-wheel drive vehicles can be limited by switching off the all-wheel capability. In current solutions, e.g. Reibkupplungsbasierende Mo modules, this is realized by completely opening the Reiblamellenkupplung.

Viele Premium-Fahrzeughersteller setzen aus Gründen der Fahrdynamik auf All radantrieb.  Many premium vehicle manufacturers rely on all-wheel drive for reasons of driving dynamics.

Bisher bekannte Systeme, die auf der Technologie von Reiblamellenkupplungen basieren, können voll variabel gesteuert werden und eine Drehmomentverteilung von 0% bis 100% an eine Sekundärachse bereitstellen. Allradsysteme, die auf Reiblamellenkupplungen basieren, haben den Nachteil, dass auftretende Dreh zahldifferenzen an den Achsen Einfluss auf das absetzbare Drehmoment an der Sekundärachse haben. Bei vollem Lenkeinschlag auf hohem Reibwert ist diePreviously known systems based on the technology of friction disk clutches can be fully variably controlled and provide a torque distribution of 0% to 100% to a secondary axle. Four-wheel systems based on friction disk clutches have the disadvantage that occurring rotational speed differences on the axles have an influence on the settable torque on the secondary axle. At full steering angle on a high coefficient of friction is the

Drehmomentverteilung begrenzt, da der kinematische Reifenschlupf zwischen den Achsen an der Reiblamellenkupplung ebenso durch Schlupf in der Reiblamellen kupplung erlaubt werden muss. Alternativ werden auch Zentraldifferenziale eingesetzt. Diese haben eine fixe Drehmomentverteilung zwischen Vorder- und Hinterachse. Ein Vorteil bei Zentral differenzialen ist, dass das Drehmoment auch bei kinematischem Schlupf richtig verteilt werden kann. Torque distribution limited because the kinematic tire slip between the axles on the friction disk clutch must also be allowed by slip in the friction disk clutch. Alternatively, central differentials are used. These have a fixed torque distribution between the front and rear axles. An advantage of central differential is that the torque can be distributed even with kinematic slippage.

Die Anforderungen„rein elektrisches Fahren“ sowie Rekuperationspotential im Zyklus stellen konkurrierende Anforderungen. Für rein elektrisches Fahren ist ein hohes Drehmoment von ca. 1200 Nm auf Achsniveau erforderlich. Dieses Dreh moment kann durch eine entsprechend hohe Übersetzung zwischen Achse und einer elektrischen Maschine erreicht werden. The requirements of "purely electric driving" and recuperation potential in the cycle make competing demands. For purely electric driving, a high torque of approx. 1200 Nm at the axle level is required. This torque can be achieved by a correspondingly high ratio between the axis and an electric machine.

Dem gegenüber steht die Anforderung möglichst viel Energie im Fahrzyklus durch Umwandlung kinetischer Bremsenergie in elektrische Energie zu rekuperieren so wie möglichst niedrige Schleppverluste in der Leistungsmechanik und in der elektrischen Maschine zu generieren. Eine hohe Übersetzung die für„rein elektri sches Fahren“ benötigt wird, bringt die Schleppverluste in der Leistungsmechanik und in der elektrischen Maschine auf ein Niveau, welches das System hinsichtlich C02 Verbesserung unattraktiv macht. On the other hand, the requirement is to recuperate as much energy as possible in the drive cycle by converting kinetic braking energy into electrical energy and to generate the lowest possible drag losses in power mechanics and in the electrical machine. A high gear ratio required for "purely electric driving" brings the drag losses in the power mechanism and in the electric machine to a level which makes the system unattractive in terms of CO 2 improvement.

Aus der DE 103 196 81 A1 ist ein Modul für einen hybriden Allradantrieb bekannt. Dabei wird ein Modul mit mindestens drei Wellen vorgesehen, das als Summierge triebe ausgebildet ist. Dabei wird die Antriebsleistung zwischen Primär- und Se kundärachse verteilt. From DE 103 196 81 A1 a module for a hybrid four-wheel drive is known. In this case, a module is provided with at least three shafts, which is designed as Summierge gear. The drive power between the primary and Se kundärachse is distributed.

Aus der DE 1 1 2009 004 352 T5 ist ein gattungsbildendes Modul bekannt. DE 1 1 2009 004 352 T5 discloses a generic module.

Aus der DE 10 2013 009 081 A1 ist es bekannt, eine elektrische Maschine über eine Kupplungseinrichtung und zwei Schaltstellungen mit einer Abtriebswelle zu verbinden. Beschreibung der Erfindung From DE 10 2013 009 081 A1 it is known to connect an electric machine via a coupling device and two switching positions with an output shaft. Description of the invention

Es ist Aufgabe der Erfindung, ein bestehendes Modul durch ein hybridisiertes Sys tem zu ersetzen, um den zusätzlichen Kraftstoffverbrauch durch Allrad durch Re- kuperation zu kompensieren. Durch die elektrische Maschine soll die Allradfähig keit realisiert werden und auch die Möglichkeit der Rekuperation soll gegeben sein. It is an object of the invention to replace an existing module by a hybridized system in order to compensate for the additional fuel consumption by four-wheel by recuperation. By the electric machine, the four-wheel speed is to be realized and the possibility of recuperation to be given.

Die Aufgabe wird gelöst durch ein Fahrzeug mit Längsmotor und permanenten Vorderachsantrieb, das einen Verbrennungsmotor und eine elektrische Maschine aufweist, wobei ein Modul Antriebsmomente bedarfsgerecht verteilt, The object is achieved by a vehicle with a longitudinal engine and permanent front-axle drive, which has an internal combustion engine and an electric machine, wherein a module distributes drive torques on demand,

wobei das Modul mit zwei Wellen verbunden ist, wobei eine Hauptwelle als Ein gangswelle, eine Sekundärwelle als Antriebswelle für die Hinterachse dient und eine Zwischenwelle von der elektrischen Maschine im Modul ein Drehmoment auf- bringbar ist, wherein the module is connected to two shafts, wherein a main shaft as an input shaft, a secondary shaft serves as a drive shaft for the rear axle and an intermediate shaft of the electric machine in the module torque can be applied,

wobei das Modul ein Reduktionsgetriebe und ein Leistungssummiergetriebe auf weist und die summierte Ausgangsleistung des Leistungssummiergetriebes an der Sekundärwelle und/oder der Hauptwelle anliegt, wobei eine Schalteinheit oder ein Schaltelement die summierte Ausgangsleistung des Leistungssummiergetriebes zwischen einem Vorderradantriebsmodus und einem Allradantriebsmodus schal tet. wherein the module comprises a reduction gear and a Leistungssummiergetriebe and the summed output power of the Leistungssummiergetriebes abuts the secondary shaft and / or the main shaft, wherein a switching unit or a switching element switched the summed output power of the Leistungssummiergetriebes between a front-wheel drive mode and a four-wheel drive mode.

Die Lösung kombiniert den Vorteil von Reibkupplungssystemen und Differential- Systemen mit einer vollständig variablen Drehmomentverteilung zwischen Primär- und Sekundärachse, auch bei vorliegenden Drehzahldifferenzen zwischen den Achsen. The solution combines the advantages of friction clutch systems and differential systems with a fully variable torque distribution between the primary and secondary axles, even with the speed differences between the axles.

Die Verwendung eines Zweiganggetriebes als Hybridgetriebe löst das Dilemma des elektrischen Antriebs, so dass ein hoch übersetzter Gang den Anforderungen nach elektrischem Fahren gerecht wird. Der niedrig übersetzte Gang kann für ein ideales Energiewiedergewinnungsverfahren ausgelegt werden. The use of a two-speed gearbox as a hybrid transmission solves the dilemma of the electric drive, so that a highly geared gear the requirements after electric driving becomes fair. The low gear ratio can be designed for an ideal energy recovery process.

Dabei wird der Großteil der Antriebsleistung, z.B.: 90% von der Verbrennungs kraftmaschine über die Kardanwelle und ein kleiner Teil, z.B.: 10% von der elektri- sehen Maschine mit z.B.: 48V geliefert. Zusätzliche steuert die elektrische Ma schine durch das gestellte Drehmoment, das gesamte Drehmoment, das an der Sekundärachse abgegeben wird. Bei auftretenden Drehzahldifferenzen zwischen Vorderachse und Hinterachse kann das Drehmoment zwischen Vorder- und Hin terachse dennoch vollvariabel verteilt werden. In this case, the majority of the drive power, for example: 90% of the internal combustion engine via the cardan shaft and a small part, for example: 10% of the electrical see machine with 48V, for example. In addition, the electrical machine controls the set torque, the total torque delivered at the secondary axis. When occurring speed differences between the front and rear axles, the torque between the front and Hin terachse can still be distributed fully variable.

Es ist von Vorteil, dass die Schalteinheit an der Sekundärwelle angreift. It is advantageous that the switching unit acts on the secondary shaft.

Eine weitere vorteilhafte Lösung wird erzielt, indem das Schaltelement durch Ab bremsen eines Planetenträgers des Leistungssummiergetriebes schaltet. A further advantageous solution is achieved by the switching element by braking from a planet carrier of Leistungssummiergetriebes switched.

Die Zweigängigkeit wird genutzt, um hohes Drehmoment im reinen elektrischen Modus zu erhalten, wobei der Planetenträger des Planetengetriebes eingebremst und ein Neutralgang eingelegt wird. The Zweängigkeit is used to obtain high torque in all-electric mode, the planet carrier of the planetary gear is braked and a neutral gear is engaged.

Die Ausgestaltung des Schaltelements ist form-, reib- oder kraftschlüssig.  The design of the switching element is positive, frictional or non-positive.

In der Ausführungsform ist es von Vorteil, dass mindestens ein Schaltaktuator das Schaltelement und oder die Schalteinheit ansteuert. Dadurch kann man je nach Regel- und Schaltstrategie die Ansteuerung über einen gemeinsamen Schaltaktuator oder getrennte Schaltaktuatoren ausgestalten. In the embodiment, it is advantageous for at least one shift actuator to actuate the shift element and / or the shift unit. As a result, depending on the control and switching strategy, the control can be configured via a common shift actuator or separate shift actuators.

Die optionale Synchronisierung der Schalteinheit erlaubt die Abkoppelung des Se kundärantriebsstrangs. The optional synchronization of the switching unit allows the decoupling of the Se kundärantriebsstrangs.

Weiterhin ist es möglich, dass der sekundäre Antriebsstrang, die Hinterachse, eine Verbindung zur Stilllegung der Hinterachse aufweist. Die Abkoppelung des sekundären Antriebsstrangs reduziert die Verluste in einem reinen Zweirad-Betrieb. Furthermore, it is possible that the secondary drive train, the rear axle, has a connection for decommissioning the rear axle. The decoupling of the secondary powertrain reduces the losses in a pure two-wheeler operation.

In einer vorteilhaften Ausführungsform ist die Verbindung eine formschlüssige Ver bindung und mit einer reibschlüssigen Verbindung in der Schalteinheit einsetzbar. In einer weiteren vorteilhaften Ausführungsform ist die Verbindung eine reibschlüs sige Verbindung und mit einer formschlüssigen Verbindung in der Schalteinheit einsetzbar.  In an advantageous embodiment, the compound is a positive Ver bond and can be used with a frictional connection in the switching unit. In a further advantageous embodiment, the compound is a reibschlüs sige compound and can be used with a positive connection in the switching unit.

Vorteilhafterweise weist die Schalteinheit auch eine Neutralstellung auf. Advantageously, the switching unit also has a neutral position.

Durch Anwendung einer Schalteinheit mit drei Schaltstellungen kann die elektri- sehe Maschine auch direkt an die Räder einer Achse des Fahrzeugs gekoppelt werden und damit die Mild-Hybridfunktionalität bestehend aus Zusatzleistung, Energierückgewinnung, elektrischen Fahren dargestellt werden. By applying a switching unit with three switching positions, the electric machine can also be coupled directly to the wheels of an axle of the vehicle and thus the mild hybrid functionality consisting of additional power, energy recovery, electric driving can be represented.

Beschreibung des Ausführunqsbeispiels Die Erfindung wird nachfolgend beispielhaft unter Bezugnahme auf die beigefügte Zeichnung beschrieben. DESCRIPTION OF THE EMBODIMENT The invention will now be described by way of example with reference to the accompanying drawings.

Fig. 1 zeigt eine schematische Darstellung der beispielhaften Ausführungsform, Fig. 2 zeigt ein beispielhaftes Fahrzeug, 1 shows a schematic representation of the exemplary embodiment, FIG. 2 shows an exemplary vehicle,

Fig. 3 zeigt eine alternative Lösung zu Fig. 1. FIG. 3 shows an alternative solution to FIG. 1.

Zielfahrzeuge, für die die Erfindung eingesetzt werden kann, sind Fahrzeuge mit Längsmotorarchitektur und permanenten Vorderachsantrieb, die neben dem übli chen 12V Bordnetz auch über ein 48V Bordnetz und eine elektrische Maschinen 2 verfügen. Dabei soll die mit 48V betriebene elektrische Maschine 2 einen Teil, z.B. 10%, der Gesamtleistung an die Sekundärachse, die Hinterachse 8, liefern kön nen. Target vehicles for which the invention can be used are vehicles with longitudinal engine architecture and permanent Vorderachsantrieb, in addition to the übli chen 12V electrical system also have a 48V electrical system and an electrical machine 2. The 48V powered electrical machine 2 is a part, eg 10%, the total power to the secondary axle, the rear axle 8, Kings deliver NEN.

In Figur 2 ist ein solches permanent vorderradgetriebenes Fahrzeug schematisch dargestellt. Ein Verbrennungsmotor 6 ist im Fahrzeug längs eingebaut und direkt mit einem Hauptgetriebe 7 verbunden. An das Hauptgetriebe 7 ist in diesem Bei spiel ein Modul 1 angeschlossen. Das Hauptgetriebe 7 ist antriebswirksam mit der Vorderachse 9 verbunden, was über die schräge Verbindung in der Zeichnung schematisch dargestellt ist. Über das Hauptgetriebe 7 wird zudem eine Haupt welle 3 angetrieben. Die Sekundärwelle 4 ist antriebswirksam mit der Hinterachse 8 verbunden. In Figure 2, such a permanent front-wheel drive vehicle is shown schematically. An internal combustion engine 6 is installed longitudinally in the vehicle and connected directly to a main transmission 7. To the main transmission 7, a module 1 is connected in this case of game. The main transmission 7 is drivingly connected to the front axle 9, which is schematically illustrated by the oblique connection in the drawing. About the main gear 7 also a main shaft 3 is driven. The secondary shaft 4 is drivingly connected to the rear axle 8.

Die Hinterachse weist in diesem Ausführungsbeispiel eine schaltbare und unter brechbare Verbindung 70 auf, mit der der Antrieb auf der Hinterachse entkoppelt werden kann. The rear axle has in this embodiment, a switchable and breakable connection 70, with the drive on the rear axle can be decoupled.

In Figur 1 ist ein erfindungsgemäßes Modul 1 dargestellt. Das erfindungsgemäße Modul 1 besteht im Wesentlichen aus einem Leistungssummierungsgetriebe 11 , einem Reduktionsgetriebe 12 und einer elektrischen Maschine 2. Die elektrische Maschine 2 sitzt auf einer Zwischenwelle 5. Das Modul 1 stellt ein Überlagerungs getriebe dar, das eine gewisse Verteilungsfunktion an Drehmoment erfüllt. FIG. 1 shows a module 1 according to the invention. The module 1 according to the invention consists essentially of a Leistungssummierungsgetriebe 11, a reduction gear 12 and an electric machine 2. The electric machine 2 is seated on an intermediate shaft 5. The module 1 represents a superposition gear, which fulfills a certain distribution function of torque.

Das Modul ist in der Figur 2 direkt am Hauptgetriebe angeordnet, für seien Funk- tion kann es aber auch entlang der Sekundärachse 4 oder an der Hinterachse 8 angebracht sein. The module is arranged directly on the main transmission in FIG. 2, but for its function it can also be mounted along the secondary axle 4 or on the rear axle 8.

Die elektrische Maschine 2 treibt das Reduktionsgetriebe 12, genauer in die erste Stufe 26a eines Stirnradsatzes 26 ein, der dann die zweite Stufe 26 b des Stirn radsatzes antreibt. Die elektrische Maschine 2 ist direkt oder indirekt im Ausführungsbeispiel über die zweite Stufe 26 b des Stirnradsatzes mit einem Sonnenrad 21 des Leistungssum miergetriebes 11 verbunden, dass das Stützmoment zur Verfügung stellt, welches das Drehmoment der Sekundärachse 4 definiert. Das Leistungssummiergetriebe ist als Planetenantrieb aufgebaut. The electric machine 2 drives the reduction gear 12, more precisely in the first stage 26 a of a spur gear 26, which then drives the second stage 26 b of the front wheel set. The electric machine 2 is connected directly or indirectly in the exemplary embodiment via the second stage 26 b of the spur gear set with a sun gear 21 of the Leistungssum miergetriebes 11 that provides the supporting torque available, which defines the torque of the secondary 4. The Leistungssummiergetriebe is constructed as a planetary drive.

Das Hohlrad 24 des Leistungssummierungsgetriebes 11 ist antriebswirksam mit der Hauptwelle 3 verbunden. Das summierte Drehmoment von Sonne 21 und Hohlrad 24 wird an die Sekundärwelle 4 über einen Planetenträger 23 übertragen. The ring gear 24 of the power summation gear 11 is drivingly connected to the main shaft 3. The summed torque of sun 21 and ring gear 24 is transmitted to the secondary shaft 4 via a planetary carrier 23.

Durch das Leistungssummierungsgetriebe 11 wird ein Teil der Gesamtleistung des Verbrennungsmotors 6, welches über das Hauptgetriebe 7 dem Modul 1 zugeführt wird, durch Stützen der elektrischen Maschine 2 abgezweigt und mit der Leistung der elektrischen Maschine 2 verstärkt. Dies ermöglicht eine vollvariable Drehmo mentverteilung zwischen Vorderachse 9 und Hinterachse 8 mit einer hohen Ge nauigkeit. Das Drehmoment der elektrischen Maschine 2 wird durch das Reduktionsgetriebe 12 so übersetzt, dass ein benötigtes Stützmoment am Sonnenrad 21 des Leis tungssummierungsgetriebes 11 anliegt, um ein gewünschtes Drehmoment an die Hinterachse 9 abzuzweigen, z.B.: 1300 Nm. Im Leistungssummierungsgetriebe 11 steuert die elektrische Maschine 2 einen Teil, z.B. 10% = 130 Nm, nach dem Re- duktionsgetriebe 12 bei und der Rest, z.B.: 90% = 1170 Nm wird von der Haupt welle 3 abgezweigt. By the Leistungssummierungsgetriebe 11 is a part of the total power of the engine 6, which is supplied via the main gear 7 to the module 1, branched off by supports of the electric machine 2 and amplified with the power of the electric machine 2. This allows a fully variable torque distribution between the front axle 9 and the rear axle 8 with a high degree of accuracy. The torque of the electric machine 2 is translated by the reduction gear 12 so that a required supporting moment is applied to the sun gear 21 of the power-summing gear 11 to branch a desired torque to the rear axle 9, for example: 1300 Nm. In the power summing gear 11, the electric machine 2 controls a part, e.g. 10% = 130 Nm, after the reduction gear 12 at and the rest, for example: 90% = 1170 Nm is diverted from the main shaft 3.

Durch den Zusammenhang der Drehmomentverteilung, z.B.: 10%:90% definiert sich die Übersetzung des Leistungssummierungsgetriebes 11. Durch die Abhän gigkeit des Drehmoments der Vorderachse 9 vom Drehmoment der elektrischen Maschine 2 besteht die Möglichkeit einen reinen Zweirad-Betrieb zu realisieren, wenn das Drehmoment der elektrischen Maschine 2 gleich 0 Nm beträgt. Das Modul verfügt über eine Schalteinheit 50, welche koaxial zur Zwischenwelle 5 angeordnet wird. Die Schalteinheit 50 wird über einen Schaltaktuator 53 angesteu ert und verfügt über drei Schaltstellungen, wobei diese durch formschlüssige Ver bindungen 52, wie Klauenkupplungen, hergestellt werden. Wahlweise kann die formschlüssige Verbindung 52 zum Koppeln der Schaltstel lungen oder mindestens der Schaltstellung für den Allradantrieb durch eine reib schlüssige Verbindung 51 ergänzt oder ersetzt werden, um das Synchronisieren des Sekundärantriebstrangs, also der Sekundärwelle 4, beim Zuschalten zu er möglichen. Bei dieser Ausführungsform kann auch ein elektromotorischer Aktuator 53 zum Einsatz kommen. By the relationship of the torque distribution, for example: 10%: 90% defines the translation of Leistungssummierungsgetriebes 11. By depen dence of the torque of the front axle 9 from the torque of the electric machine 2, it is possible to realize a pure two-wheel operation when the torque the electric machine 2 is equal to 0 Nm. The module has a switching unit 50, which is arranged coaxially with the intermediate shaft 5. The switching unit 50 is angesteu ert via a switching actuator 53 and has three switching positions, these connections by positive Ver 52, such as dog clutches, are produced. Optionally, the positive connection 52 for coupling the switching Stel lungs or at least the switching position for the all-wheel drive can be supplemented or replaced by a friction-locked connection 51 to synchronize the secondary drive train, so the secondary shaft 4, when connecting to it possible. In this embodiment, an electromotive actuator 53 can be used.

In Figur 1 ist die Schalteinheit 50 schematisch dargestellt, die Komponenten, wie der elektromotorische Aktuator 53 oder die form- oder reibschlüssige Verbindun gen 52, 51 sind nicht im Detail dargestellt. In Figure 1, the switching unit 50 is shown schematically, the components, such as the electromotive actuator 53 or the positive or frictional Verbindun conditions 52, 51 are not shown in detail.

Dabei schaltet die Schalteinheit 50 in der ersten Stellung den Allradmodus, wenn die form- oder reibschlüssige Verbindung 52, 51 rechts eingerückt ist. In this case, the switching unit 50 switches in the first position the all-wheel mode when the positive or frictional connection 52, 51 is engaged to the right.

D.h. in der ersten Stellung der Schalteinheit 50 wird das Drehmoment bedarfsge recht auf die beiden antreibbaren Achsen, nämlich die Vorderachse 9 und die Hin terachse 8, verteilt. Die Verbrennungskraftmaschine 6 ist antriebswirksam mit dem Hohlrad 24 des Planetengetriebes 11 verbunden. Die elektrische Maschine 2 ist in der ersten Stellung über die Schalteinheit 50 antriebswirksam mit der Sonne 21 des Planetengetriebes 11 verbunden. Derart wird Drehmoment über den Plane tenträger 23 auf die Sekundärwelle 4 übertragen. That in the first position of the switching unit 50, the torque is Bedarfsge right on the two drivable axles, namely the front axle 9 and the rear axle 8, distributed. The internal combustion engine 6 is drivingly connected to the ring gear 24 of the planetary gear 11. The electric machine 2 is drivingly connected to the sun 21 of the planetary gear 11 in the first position via the switching unit 50. In this way, torque is transmitted to the secondary shaft 4 via the tarpaulin carrier 23.

In der zweiten Stellung ist die form- oder reibschlüssige Verbindungen 52, 51 links eingerückt und das Fahrzeug wird über die Vorderachse 9, oder im Generatormo- dus oder rein elektrisch betrieben. In dieser Stellung der Schalteinheit 50 kann auch die Verbindung 70 geöffnet werden, um einen reinen Zweiradantrieb herzu stellen. In the second position, the positive or frictional connections 52, 51 are engaged on the left and the vehicle is operated via the front axle 9, or in the generator mode or purely electrically. In this position, the switching unit 50 can Also, the compound 70 are opened to make herzu pure two-wheel drive.

Die elektrische Maschine 2 kann dann im Generatormodus betrieben werden und dementsprechende mechanische Energie in elektrische Energie umwandeln und diese in einer Batterie speichern. Dieser Betriebsmodus wird in der Stellung 2 in einer Schalteinheit 50 dargestellt. Der Planetenantrieb läuft im Zweiradantriebs-/ Rekuperations-Modus im Block um, so dass Schleppverluste im Planetenantrieb auf ein Minimum reduziert werden und eine maximale Rekuperationsleistung er lauben. Wahlweise kann die optionale Vorrichtung zum Stilllegen des Sekundärantriebs strangs durch eine reibschlüssige Verbindung in der Schalteinheit 50 zur Hinter achse im Modul 1 mit einer formschlüssigen Verbindung 70 an einer Seitenwelle an der Hinterachse 8 oder mit einer formschlüssigen Verbindung in der Schaltein heit 50 des Moduls und einer reibschlüssigen Verbindung 70 an einer Seitenwelle an der Hinterachse 8 dargestellt werden, um das Zuschalten des Allradantriebs während der Fahrt zu ermöglichen. The electric machine 2 can then be operated in the generator mode and convert corresponding mechanical energy into electrical energy and store it in a battery. This operating mode is shown in position 2 in a switching unit 50. The planetary drive runs in the two-wheel drive / recuperation mode in the block, so that drag losses in the planetary drive are reduced to a minimum and maximum recuperation performance he let. Optionally, the optional device for decommissioning the secondary drive strand by a frictional connection in the switching unit 50 to the rear axle in the module 1 with a positive connection 70 on a side shaft on the rear axle 8 or with a positive connection in the Schaltein unit 50 of the module and a frictional connection 70 are shown on a side shaft on the rear axle 8 to enable the connection of the four-wheel drive while driving.

D.h. in der zweiten Stellung der Schalteinheit 50 ist die Sekundärwelle 4 nicht an triebswirksam mit dem Modul 1 verbunden. Der Planetenträger 23 des Planeten getriebes 11 ist über die Planeten mit der Sonne 21 und somit mit dem Redukti- onsgetriebe 12 antriebswirksam verbunden. Der Planetenträger 23 ist jedoch nicht, wie in der ersten Stellung der Schalteinheit 50, antriebswirksam mit der Se kundärwelle 4 verbunden. Die Verbrennungskraftmaschine 6 wirkt auf das Hohlrad 24 des Planetengetriebes 11. Derart kann das Drehmoment der elektrischen Ma schine 2 und/oder der Verbrennungskraftmaschine 6 auf die Primärachse, d.h. die Vorderachse 9, des Fahrzeugs geführt werden. In der dritten Stellung befindet sich das form- oder reibschlüssige Element 52 in ei ner Mittelposition und somit in einem neutralen Modus. That is, in the second position of the switching unit 50, the secondary shaft 4 is not connected to the module 1 to drive. The planet carrier 23 of the planetary gear 11 is drivingly connected via the planets with the sun 21 and thus with the Reduktions- onsgetriebe 12. However, the planet carrier 23 is not, as in the first position of the switching unit 50, drivingly connected to the Se kundärwelle 4. The internal combustion engine 6 acts on the ring gear 24 of the planetary gear 11. Thus, the torque of the electrical ma chine 2 and / or the internal combustion engine 6 to the primary axis, ie the front axle 9, of the vehicle are performed. In the third position, the positive or frictional element 52 is in egg ner center position and thus in a neutral mode.

Die dritte Stellung der Schalteinheit 50 stellt somit eine Neutralstellung dar und ist eine Stellung zwischen der ersten Stellung und der zweiten Stellung. D.h. eine Schaltung von der ersten Stellung in die zweite Stellung, oder umgekehrt, erfolgt immer über die dritte Stellung. In der dritten Stellung der Schalteinheit 50 ist der Planetenträger 23 des Planetengetriebes 11 weder antriebswirksam mit der Se kundärwelle 4 des Fahrzeugs noch mit der Sonne 21 des Planetengetriebes 11 verbunden. In der Neutralstellung, d.h. der dritten Stellung der Schalteinheit 50, kann eine Synchronisation der Wellen, nämlich der Hauptwelle 3, der Sekundär welle 4 und er Zwischenwelle 5, erfolgen. Figur 3 zeigt eine alternative Lösung. Wahlweise kann die optionale Zweigang-Lösung umgesetzt werden, indem in der Schalteinheit 50 die Stellung 3, der neutrale Modus, eingelegt wird und der Plane tenträger 23 des Leistungssummierungsgetriebes 11 festgebremst wird. Der Planetenträger 23 wird mittels der Schaltvorrichtung 71 form-, reib- oder kraft schlüssig mit einem feststehenden Bauteil verbunden. Die Schaltvorrichtung 71 kann mit einem eigenen einfachen Aktuator angesteuert werden oder ist antriebs wirksam mit dem Schaltaktuator 53 der Schalteinheit verbunden, so dass für beide Schaltelemente, die Schaltvorrichtung 71 und die Schalteinheit 50 nur ein The third position of the switching unit 50 thus represents a neutral position and is a position between the first position and the second position. That a circuit from the first position to the second position, or vice versa, always takes place via the third position. In the third position of the switching unit 50, the planet carrier 23 of the planetary gear 11 is neither drive effective with the Se kundärwelle 4 of the vehicle nor connected to the sun 21 of the planetary gear 11. In the neutral position, i. the third position of the switching unit 50, a synchronization of the waves, namely the main shaft 3, the secondary shaft 4 and he intermediate shaft 5, take place. FIG. 3 shows an alternative solution. Optionally, the optional two-speed solution can be implemented by the switch unit 50, the position 3, the neutral mode, is inserted and the tarpaulin tenträger 23 of the Leistungssummierungsgetriebes 11 is braked. The planet carrier 23 is connected by means of the switching device 71 form-, friction or force-fitting with a fixed component. The switching device 71 can be controlled with its own simple actuator or is drivingly connected to the switching actuator 53 of the switching unit, so that for both switching elements, the switching device 71 and the switching unit 50 only one

Schaltaktuator 53 benötigt wird. Shift actuator 53 is required.

Über das Schaltelement 71 kann der Planetenträger 23 an einer Masse festge bremst werden, wodurch er in seiner Drehung gehindert wird. Derart ist es möglich über die Neutralstellung, neben dem über die zweite Stellung der Schalteinheit 50 realisierten Gang, einen hochübersetzenden Gang zur Übersetzung des Drehmo- ments der elektrischen Maschine 2 darzustellen. Bezugszeichenliste About the switching element 71, the planet carrier 23 can be braked to a mass Festge, whereby it is prevented in its rotation. In this way it is possible, via the neutral position, to represent, in addition to the gear realized via the second position of the switching unit 50, a highly translating gear for the transmission of the torque of the electric machine 2. LIST OF REFERENCE NUMBERS

1 Modul 1 module

2 Elektrische Maschine 2 electric machine

3 Hauptwelle 3 main shaft

4 Sekundärwelle 4 secondary shaft

5 Zwischenwelle  5 intermediate shaft

6 Verbrennungsmotor 6 internal combustion engine

7 Hauptgetriebe 7 main gears

8 Hinterachse  8 rear axle

9 Vorderachse 9 front axle

10 Hauptkupplung  10 main clutch

11 Leistungssummiergetriebe 11 power summation gearbox

12 Reduktionsgetriebe12 reduction gears

21 Sonne 21 sun

23 Planetenträger 23 planet carrier

24 Hohlrad 24 ring gear

26 Stirnradsatz  26 spur gear set

26a erste Stufe Stirnradsatz 26a first stage spur gear set

26b zweite Stufe Stirnradsatz26b second stage spur gear

50 Schalteinheit 50 switching unit

51 reibschlüssige Verbindung 51 frictional connection

52 formschlüssige Verbindung 53 Schaltaktuator 52 positive connection 53 shift actuator

70 Verbindung 70 connection

71 Schaltvorrichtung  71 switching device

Claims

Ansprüche claims 1. Fahrzeug mit Längsmotor und permanenten Vorderachsantrieb, das einen Ver brennungsmotor (6) und eine elektrische Maschine (2) aufweist, wobei ein Modul (1 ) Antriebsmomente bedarfsgerecht verteilt, 1. vehicle with a longitudinal engine and permanent Vorderachsantrieb having a United combustion engine (6) and an electric machine (2), wherein a module (1) distributed drive torque as needed, wobei das Modul (1 ) mit zwei Wellen verbunden ist, wobei eine Hauptwelle (3) als Eingangswelle des Moduls dient, eine Sekundärwelle (4) als Antriebswelle für die Hinterachse (8) dient und eine Zwischenwelle (5) von der elektrischen Maschine (2) im Modul (1 ) ein Drehmoment aufbringbar ist, wherein the module (1) is connected to two shafts, a main shaft (3) serving as the input shaft of the module, a secondary shaft (4) serving as a drive shaft for the rear axle (8) and an intermediate shaft (5) from the electric machine (2 ) in the module (1) a torque can be applied, wobei das Modul (1 ) ein Reduktionsgetriebe (12) und ein Leistungssummierge triebe (11 ) aufweist und die summierte Ausgangsleistung des Leistungssummier getriebes (11 ) an der Sekundärwelle (4) und/oder der Hauptwelle (3) anliegt, dadurch gekennzeichnet, dass eine Schalteinheit (50) oder ein Schaltelement (71 ) die summierte Ausgangsleistung des Leistungssummiergetriebes (11 ) zwischen einem Vorderradantriebsmodus und einem Allradantriebsmodus schaltet. wherein the module (1) a reduction gear (12) and a Leistungssummierge gear (11) and the summed output power of the Leistungssummier gear (11) on the secondary shaft (4) and / or the main shaft (3) is applied, characterized in that a Switching unit (50) or a switching element (71) switches the summed output power of the Leistungssummiergetriebes (11) between a front-wheel drive mode and a four-wheel drive mode. 2. Fahrzeuge nach Anspruch 1 , dadurch gekennzeichnet, dass die Schalteinheit (50) an der Sekundärwelle (4) angreift. 2. Vehicles according to claim 1, characterized in that the switching unit (50) acts on the secondary shaft (4). 3. Fahrzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Schalt- element (71 ) durch Abbremsen eines Planetenträgers (23) des Leistungssummier getriebes (11 ) schaltet. 3. Vehicle according to claim 1 or 2, characterized in that the switching element (71) by braking a planet carrier (23) of the Leistungssummier transmission (11) switches. 4. Fahrzeug nach Anspruch 3, dadurch gekennzeichnet, dass das Schaltelement (71 ) form-, reib- oder kraftschlüssig ist. 4. Vehicle according to claim 3, characterized in that the switching element (71) is positive, frictionally or non-positively. 5. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeich- net, dass mindestens ein Schaltaktuator (53) das Schaltelement (71 ) und oder die5. Vehicle according to one of the preceding claims, characterized marked, that at least one switching actuator (53), the switching element (71) and or the Schalteinheit (50) ansteuert. Switching unit (50) controls. 6. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeich net, dass der sekundäre Antriebsstrang, die Hinterachse (8), eine Verbindung (70) zur Stilllegung aufweist. 6. Vehicle according to one of the preceding claims, characterized in that the secondary drive train, the rear axle (8), a connection (70) for decommissioning. 7. Fahrzeug nach Anspruch 6, dadurch gekennzeichnet, dass die Verbindung (70) eine formschlüssige Verbindung ist und mit einer reibschlüssigen Verbindung (51 ) in der Schalteinheit (50) einsetzbar ist. 7. Vehicle according to claim 6, characterized in that the connection (70) is a positive connection and with a frictional connection (51) in the switching unit (50) can be used. 8. Fahrzeug nach Anspruch 6, dadurch gekennzeichnet, dass die Verbindung (70) eine reibschlüssige Verbindung ist und mit einer formschlüssigen Verbindung (52) in der Schalteinheit (50) einsetzbar ist. 8. Vehicle according to claim 6, characterized in that the connection (70) is a frictional connection and with a positive connection (52) in the switching unit (50) can be used. 9. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeich net, dass die Schalteinheit (50) auch eine Neutralstellung aufweist. 9. Vehicle according to one of the preceding claims, characterized in that the switching unit (50) also has a neutral position.
PCT/EP2019/058804 2018-04-12 2019-04-08 Vehicle comprising a transfer module Ceased WO2019197336A1 (en)

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