WO2020185139A1 - A powertrain for a vehicle and a vehicle consisting the powertrain - Google Patents

A powertrain for a vehicle and a vehicle consisting the powertrain Download PDF

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Publication number
WO2020185139A1
WO2020185139A1 PCT/SE2020/050147 SE2020050147W WO2020185139A1 WO 2020185139 A1 WO2020185139 A1 WO 2020185139A1 SE 2020050147 W SE2020050147 W SE 2020050147W WO 2020185139 A1 WO2020185139 A1 WO 2020185139A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
powertrain
transmission
propeller shaft
shaft
Prior art date
Application number
PCT/SE2020/050147
Other languages
French (fr)
Inventor
Stefan Karlsson
Jörgen FORSBERG
Tomas LÖFWALL
Christian Ness
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to CN202080012484.5A priority Critical patent/CN113396077A/en
Priority to EP20768938.1A priority patent/EP3934928A4/en
Priority to US17/435,686 priority patent/US12071018B2/en
Priority to BR112021013044-6A priority patent/BR112021013044A2/en
Priority to RU2021121400A priority patent/RU2767094C1/en
Publication of WO2020185139A1 publication Critical patent/WO2020185139A1/en

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    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
    • 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
    • B60K6/24—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 combustion engines
    • 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
    • B60K6/26—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 motors or the generators
    • 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
    • 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
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    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
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    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
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    • 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
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    • 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
    • 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 powertrain for a vehicle according to the appended claims.
  • the invention further relates to a vehicle according to the appended claims.
  • the propulsion unit Depending on the type of propulsion unit in a power train, different types of fuel or power should be supplied to the propulsion unit. If the propulsion unit is an electrical machine, the electrical machine should be supplied with electrical power. If the propulsion unit is an internal combustion engine, the internal combustion engine should be supplied with fuel, such as diesel fuel or petrol. When a vehicle is provided with the powertrain, the propulsion unit may comprise an electrical machine and/or an in ternal combustion engine.
  • the operating range of the vehicle may be extended if the fuel or electric power sup ply of the vehicle is large.
  • Fuel is stored in energy storage units, such as fuel tanks of the vehicle.
  • Electrical power is stored in energy storage units of the vehicle.
  • the en ergy storage units are arranged on the vehicle, so that they do not end up in conflict with other components on the vehicle.
  • electric vehicles which comprises receiving portions for energy storage units on side portions of the vehicle and between front and rear wheels.
  • a vehicle which only propulsion unit is an electrical machine, the storage of energy storage units and the capacity of the energy storage units are critical for the opera tion range of the vehicle.
  • a large energy storage unit or a number of small energy storage units require space in the vehicle.
  • a vehicle comprises compo nents such as shafts, frames, and components in the powertrain, which restrict the possibility to arrange large energy storage units on the vehicle.
  • the propulsion unit also comprises an internal combustion engine, additional storage of fuel in the en ergy storage unit, such as a fuel tank is required. Arranging a conventional power- train rearwards in the vehicle in a direction towards a rear axle for rear drive wheels of the vehicle may not satisfactory create more space in front of the propulsion unit.
  • a powertrain for a vehicle in a position that a space is created for accommodating energy storage units. Further, it is desired to arrange a propulsion unit of a powertrain in a position that allows the propeller shaft to move within allowable angles both in normal driving position and at rear axle movements.
  • An object of the invention is therefore to arrange a powertrain for a vehicle in a posi tion that a space is created for accommodating energy storage units.
  • a further object of the invention is to arrange a propulsion unit of a powertrain in a position that allows the propeller shaft to move within allowable angles both in normal driving position and at rear axle movements.
  • a further object of the invention is to arrange a propulsion unit of a powertrain in a position that allows the propeller shaft to move within allowable angles for different vehicle configurations.
  • a powertrain for a vehicle comprising: at least one propulsion unit; a transmission connected to the at least one propulsion unit; a propeller shaft connected to the transmission, and at least one drive shaft of a rear axle, which at least one drive shaft is connected to the propeller shaft, so that the propeller shaft extends between the transmission and the at least one drive shaft, wherein the at least one propulsion unit is arranged in a posi tion between the transmission and the rear axle in a longitudinal direction of the vehi cle.
  • a vehicle comprising the powertrain disclosed herein.
  • the powertrain may use only electrical machines as a propulsion unit. Since a space is created for accommodating energy storage units in the vehicle, the storage and the capacity of electrical power for propulsion of the electrical machines increase the op eration range of the vehicle.
  • the created space in the vehicle may accommodate a large energy storage unit or a number of small energy storage units. Vehicle compo nents such as shafts, frames, and components in the powertrain will be arranged out side the created space for the energy storage units. If the propulsion unit also com prises an internal combustion engine, the accommodation of an energy storage unit for fuel is possible in the created space in the vehicle.
  • the length of a propeller shaft of the powertrain will be enough for handle maximum allowable angles both in normal driving position and at rear axle movements.
  • Fig. 1 schematically illustrates a side view of a vehicle with a powertrain according to an example
  • Fig. 2 schematically illustrates a view from above of a powertrain according to an ex ample
  • Figures 3a-3c schematically illustrate side views of a powertrain according to an ex ample
  • Fig. 4 schematically illustrates a view from below of a powertrain according to an ex ample
  • Fig. 5 schematically illustrates a section view along line V-V in fig. 4 according to an example.
  • the powertrain according to the present disclosure may be arranged in a position in a vehicle such that a space is created for accommodating energy storage units in the vehicle. Further, a propulsion unit of the powertrain according to the present disclo sure may be arranged in a position in the vehicle, so that the propeller shaft is al lowed to move within allowable angles both in normal driving position and at rear axle movements.
  • a powertrain for a vehicle comprising at least one propulsion unit, a transmission connected to the at least one propulsion unit, a propeller shaft connected to the transmission, and at least one drive shaft of a rear axle.
  • the at least one drive shaft is connected to the propeller shaft, so that the propeller shaft extends between the transmission and the at least one drive shaft.
  • the at least one propulsion unit is arranged in a position be tween the transmission and the rear axle in a longitudinal direction of the vehicle.
  • the powertrain in the vehicle transfers power from the propulsion unit to drive wheels of the vehicle.
  • the vehicle may be a heavy vehicle, e.g. a truck or a bus.
  • the vehicle may alternatively be a passenger car.
  • the vehicle may be driven by a driver.
  • the ve hicle may be remotely operated or autonomously operated.
  • the drive wheels may be arranged in a rear part of the vehicle or in a front part of the vehicle. All wheels of the vehicle may be drive wheels.
  • the propulsion unit may comprise one or several elec trical machines.
  • the propulsion unit may be an internal combustion en gine. It is also possible to combine one or several electrical machines with an internal combustion engine in the powertrain. Such combination may allow the electrical ma chines and the internal combustion engine to work independently of each other or to work in combination as a hybrid drive.
  • the transmission may be a gearbox, comprising gear wheels for transferring torque and gear ratio.
  • the transmission may be a gearbox, comprising a chain or a belt transmission for transferring torque and gear ratio.
  • the gear ratio over the transmis sion may be fixed or variable.
  • the gear ration may be 1 :1.
  • the gearbox may be an automatic or a manual transmission.
  • the gearbox may be an automatic-manual- transmission, such as an AMT gearbox.
  • the propeller shaft is configured to transfer rotational motion and torque between the transmission and the at least one drive shaft of the rear axle.
  • the propeller shaft is with a first end connected to an output shaft of the transmission and with a second end connected to the at least one drive shaft.
  • the second end of the propeller shaft may be connected to the at least one drive shaft via a differential gear, which is ar ranged in the rear axle.
  • the differential gear comprises an input shaft, which is con nected to the propeller shaft, and two output shafts, each connected to a drive shaft.
  • Each drive shaft is connected to a drive wheel, for driving the vehicle.
  • the at least one drive shaft is configured to transfer rotational motion and torque between the propeller shaft and the drive wheel.
  • the propeller shaft may have an extension in the same direction as the extension of the output shaft of the transmission and the exten sion of the input shaft of the differential gear. However, the propeller shaft may have an extension in another direction than the extension of the output shaft of the trans mission and the extension of the input shaft of the differential gear.
  • the rear axle may have an extension from one rear drive wheel at one side of the vehicle to an other drive wheel on the other side of the vehicle.
  • the vehicle may comprise a frame.
  • the powertrain may be connected or attached to the frame.
  • the propulsion unit, transmission, and the rear axle may be connected or attached to the frame.
  • the rear axle may be connected to the frame by means of a suspension, which allows the rear axle to move in a vertical direction in relation to the extension of the frame.
  • the at least one propulsion unit is arranged in a position between the transmission and the rear axle in a longitudinal direction of the vehicle.
  • the transmission may be a gearbox.
  • the at least one propulsion unit is arranged in a position between the gearbox and the rear axle in a longitudinal direction of the vehicle.
  • the at least one propulsion unit is positioned in parallel with the gearbox output shaft and the propeller shaft. In front of the transmission, and thus in front of the powertrain a space is created when the at least one propulsion unit is arranged in a position be tween the transmission and the rear axle.
  • the definition of the longitudinal direction of the vehicle is a direction from the front part of the vehicle to the rear part of the ve hicle.
  • the created space in front of the transmission, and thus in front of the power- train, may accommodate energy storage units for storing electrical power.
  • the cre ated space may alternatively, or in combination, accommodate energy storage units for liquid fuel, such as diesel fuel or petrol.
  • the created space for accommodating energy storage units increases the storage and the capacity of electrical power and/or liquid fuel for propulsion of the propulsion units, and thus increases the operation range of the vehicle.
  • the created space in the vehicle may accommodate a large energy storage unit or a number of small energy storage units.
  • Vehicle components such as shafts, frames, and components in the powertrain will be arranged outside the created space for the energy storage units.
  • the at least one propulsion unit in a position between the transmission and the rear axle in the longitudinal direction of the vehicle will create an essential space in front of the powertrain.
  • the created space in front of the powertrain will be even larger.
  • the at least one propulsion unit and the propeller shaft are connected in parallel to the transmission.
  • the input shaft of the transmission is connected to the at least one propulsion unit.
  • the output shaft of the transmission is connected to the propeller shaft.
  • the input shaft and the output shaft of the transmission have a parallel extension in relation to each other.
  • the input shaft and the output shaft of the transmission extend in the same direction.
  • the transmission is arranged in the vehicle, the input shaft and the output shaft of the transmission extend in a direction towards the rear axle and the rear part of the vehicle.
  • Connecting the at least one propulsion unit and the pro peller shaft in parallel to the transmission will result in a compact powertrain and a large space in front of the transmission for accommodating energy storage units.
  • the axis of the propeller shaft may be directed in different angels in relation to an axis of the output shaft of the transmission.
  • a center axis of the propeller shaft extends in an angle in relation to a center axis of an output shaft of the transmission to which the propeller shaft is connected.
  • the propeller shaft is connected to the output shaft of the transmission.
  • the input shaft and the output shaft of the transmission have a parallel extension in relation to each other.
  • the center axis of the propeller shaft may extend in an angle in relation to the center axis of the output shaft of the transmission.
  • the axial extension of the powertrain in the longitudinal di rection of the vehicle, from the connection between the propeller shaft and the drive shaft, corresponds to the common extension of the propeller shaft and the transmis sion in the longitudinal direction of the vehicle.
  • the length of the powertrain is the common extension of the propeller shaft and the transmission in the longitudinal direction of the vehicle.
  • the length of the propeller shaft and the length or the longitudinal packaging volume of the trans mission will define the extension of the powertrain in front of the rear axle.
  • a short propeller shaft and/or a short or more compact transmission, will create a large space in front of the powertrain for accommodating energy storage units.
  • the axial extension of the transmission in the longitudinal direction of the vehicle is less than 20% of the common axial extension of the propel ler shaft and the transmission in the longitudinal direction of the vehicle.
  • the transmission has an axial extension, a length or a thickness, which is less than 20% of the common axial extension of the propeller shaft and the transmission in the longitudinal direction of the vehicle a compact powertrain is achieved.
  • the lim ited length or a thickness of the transmission will limit the extension of the powertrain in front of the rear axle. As a result, a large space in front of the powertrain is created for accommodating energy storage units.
  • the axial extension of the transmission in the longitudinal direction of the vehicle is less than 10% of the common axial extension of the propel ler shaft and the transmission in the longitudinal direction of the vehicle.
  • a length or a thickness which is less than 10% of the common axial extension of the propeller shaft and the transmission in the longitudinal direction of the vehicle a compact powertrain is achieved.
  • the lim ited length or a thickness of the transmission will limit the extension of the powertrain in front of the rear axle.
  • the transmission having an axial extension less than 10% of the common axial extension of the propeller shaft and the transmission may create a larger space in front of the powertrain than a transmission having an axial extension less than 20% of the common axial extension of the propeller shaft and the transmis sion. Therefore, such transmission having an axial extension less than 10% of the common axial extension of the propeller shaft and the transmission will create an even larger space in front of the powertrain for accommodating energy storage units.
  • the at least one propulsion unit is an electrical machine.
  • the powertrain may use only electrical machines as a propulsion unit.
  • the propulsion unit may comprise a large electrical machine provided with enough torque and power for propelling the vehicle.
  • a number of propulsion units may be ar ranged in the powertrain, comprising a number of small electrical machines, which to gether are provided with enough torque and power for propelling the vehicle.
  • the storage and the capacity of electrical power for propulsion of the electrical machines will increase the operation range of the vehicle due to the larger accommodation ca pacity of the energy storage units.
  • the powertrain comprises at least two propulsion units, wherein the at least two propulsion units comprises at least one electrical machine and an internal combustion engine.
  • An electrical machine may be combined with an internal combustion engine in the powertrain. It is also possible to combine one or several electrical machines with an internal combustion engine in the powertrain. Such combination may allow the elec trical machines and the internal combustion engine to work independently of each other or to work in combination as a hybrid drive.
  • the electrical machine is connected to a first input shaft of the transmission and the internal combustion engine is con nected to a second input shaft of the transmission.
  • the storage and the capacity of electrical power and fluid fuel for propulsion of the electrical machines and the inter nal combustion engine will increase the operation range of the vehicle due to the larger accommodation capacity of the energy storage units in the created space in front of the powertrain.
  • the electrical machine and the internal combustion engine are arranged in a position between the transmission and the rear axle and parallel to each other.
  • the electrical machine and the internal combustion engine are arranged in a position between the transmission and the rear axle in a longitudinal direction of the vehicle.
  • the created space in front of the transmission, and thus in front of the powertrain, may accommodate energy stor age units for storing electrical power and liquid fuel, such as diesel fuel or petrol.
  • the electrical machine is connected to a first input shaft of the transmission and the inter nal combustion engine is connected to a second input shaft of the transmission.
  • the first and second input shafts of the transmission are arranged in parallel to each other, so that they have a parallel extension in relation to each other.
  • the first and second input shafts of the transmission extend in the same direction.
  • the first and second input shafts of the transmis sion in a direction towards the rear axle and the rear part of the vehicle. Connecting the electrical machine and the internal combustion engine in parallel to each other will result in a compact powertrain and a large space in front of the transmission for accommodating energy storage units.
  • the propeller shaft is connected to the transmission and to the at least one drive shaft by means of universal joints, so that the propeller shaft is allowed to change its direction of axial extension, when the rear axle moves in a ver tical direction.
  • the length of a propeller shaft of the powertrain will be enough for handle maximum allowable angles both in normal driving position and at rear axle movements. Also joint angles between the propeller shaft and the transmission, and between the pro peller shaft and the drive shaft, will fall within allowable angels for universal joints.
  • the powertrain may be arranged rearwards in the vehicle in a direction towards rear axle of the vehicle as far as the length of a propeller shaft will be enough for handle the maximum allowable angles. Arranging the powertrain as far as possible towards the rear axle will create an even larger space in front of the powertrain for accommo dating energy storage units.
  • the propeller shaft is telescopically configured, allowing the length of the propeller shaft to vary when the rear axle moves in a perpendicular di rection in relation to the longitudinal direction of the vehicle.
  • the distance be tween the rear axle and the transmission will change.
  • the propeller shaft is connected to the transmission in a first end and connected to the drive shaft of the rear axle with the second end, the length of the propeller will change by means of the telescopic configuration when the rear axle moves in a perpendicular direction in re lation to the longitudinal direction of the vehicle.
  • the powertrain may be arranged rearwards in the vehicle in a direction towards rear axle of the vehicle as far as the length of a propeller shaft will accept the telescopically configuration. Arranging the powertrain as far as possible towards the rear axle will create an even larger space in front of the powertrain for accommodating energy storage units.
  • a vehicle comprising the powertrain disclosed herein.
  • a vehicle provided with such a powertrain will have an increased the operation range due to the extended storing capacity of electrical power and/or fuel in the space created in front of the powertrain in the vehicle.
  • an energy storage unit is arranged in front of the power- train in the vehicle.
  • the created space in front of the powertrain in the vehicle will ac commodate an energy storage unit depending on the type of propulsion unit.
  • Fig. 1 schematically illustrates a side view of a vehicle 1 with a powertrain 2 accord ing to an example.
  • the powertrain 2 comprising a propulsion unit 4, a transmission 6 connected to the at least one propulsion unit 4 and a propeller shaft 8 connected to the transmission 6, and at least one drive shaft 10 of a rear axle 12.
  • the at least one drive shaft 10 is connected to the propeller shaft 8, so that the propeller shaft 8 ex tends between the transmission 6 and the at least one drive shaft 10.
  • the at least one propulsion unit 4 is arranged in a position between the transmission 6 and the rear axle 12 in a longitudinal direction of the vehicle 1 .
  • An energy storage unit 14 is arranged in front of the powertrain 2.
  • the energy storage unit 14 is connected to the propulsion unit 4 and deliver power to the propulsion unit 4.
  • a number of propulsion units 4 may be arranged in series.
  • the vehicle 1 comprises rear drive wheels 16 and front wheels 18.
  • Fig. 2 schematically illustrates a view from above of a powertrain 2 according to an example.
  • the propulsion units 4 are arranged in the powertrain 2.
  • the propulsion units 4 may be electrical machines, which together provide torque and power for pro pelling the vehicle 1.
  • one propulsion unit 4 may be an elec trical machine and the other propulsion unit 4 may be an internal combustion engine.
  • the electrical machine and the internal combustion engine are arranged in a position between the transmission 6 and the rear axle 12 and parallel to each other.
  • a first in put shaft 13 of the transmission 6 is connected to one propulsion unit 4.
  • a second in put shaft 15 of the transmission 6 is connected to the other propulsion unit 4.
  • the propeller shaft 8 is with a first end 20 connected to an output shaft 22 of the transmis sion 6 and with a second end 24 connected to the drive shafts 10 of the rear axle 12.
  • the second end 24 of the propeller shaft 8 may be connected to the drive shafts 10 via a differential gear 26, which is arranged in the rear axle 12.
  • the differential gear 26 comprises an input shaft 28, which is connected to the propeller shaft 8, and two output shafts 30, each connected to a drive shaft 10.
  • Each drive shaft 10 is con nected to a drive wheel 16, for driving the vehicle 1 .
  • An energy storage unit 14 is ar ranged in front of the powertrain 2.
  • the front wheels 18 of the vehicle 1 are steerable by means of a linkage mechanism 32.
  • the propulsion units 4 and the propeller shaft 8 are connected in parallel to the transmission 6.
  • the axial extension of the power train 2 in the longitudinal direction of the vehicle 1 corresponds to the common axial extension of the propeller shaft 8 and the transmission in the longitudinal direction of the vehicle 1.
  • the axial extension of the transmission 6 in the longitudinal direction of the ve hicle 1 my be less than 10% of the common axial extension of the propeller shaft 8 and the transmission 6 in the longitudinal direction of the vehicle 1.
  • FIGS 3a-3c schematically illustrate side views of a powertrain 2 according to an example.
  • the length of the propeller shaft 8 will handle maximum allowable angles both in normal driving position and at movements of the rear axle 12.
  • the length of the propeller shaft 8 will also handle different vehicle 1 heights.
  • the connections between the propeller shaft 8 and the transmission 6 and the drive shafts 10 are accomplished by means of universal joints 34. Also angles between the propeller shaft 8 and the transmission 6 and the drive shaft 10 will fall within allowable angels for the universal joints 34.
  • the powertrain 2 is shown in a normal driving position in which the extension of the propeller shaft 8, the output shaft 22 of the transmission 6 and the input shaft 28 of the differential gear 26 coincides and follow a common line.
  • Such a normal driving position will take place when the vehicle 1 is driving on a smooth or uniform road 36.
  • the powertrain 2 is shown in a driving position in which the drive wheels 16 are on the top of a bump 38 or a protrusion in the road 36.
  • the drive wheels 16 and the rear axle 12 has moved in a vertical direction upwards in relation to the longitudinal direction of the vehicle 1.
  • the rear axle 12 moves in a vertical or perpendicular direction in relation to the longitudinal direction of the vehicle 1 and the position of the transmission 6 is fixed, the distance between the rear axle 12 and the transmission 6 will change.
  • the length of the propeller shaft 8 will change by means of a telescopic configuration 40 when the rear axle 12 moves in a perpen dicular direction in relation to the longitudinal direction of the vehicle 1.
  • the powertrain 2 is shown in a driving position in which the driving wheels 16 are in a cavity 42 in the road.
  • the drive wheels 16 and the rear axle 12 has moved in a vertical direction downwards in relation to the longitudinal direction of the vehicle 1. In such situation there will be an angle between the extension of the propeller shaft 8, the output shaft 22 of the transmission 6 and the input shaft 28 of the differential gear 26.
  • Fig. 4 schematically illustrates a view from below of a powertrain 2 according to an example.
  • the propeller shaft 8 is with the first end 20 connected to the output shaft 22 of the transmission 6 and with the second end connected to the drive shafts 10 of the rear axle 12.
  • the second end 24 of the propeller shaft 8 is connected to the drive shafts 10 via the differential gear 26.
  • the input shaft 28 of the differential gear 26 is arranged beside a centre line 44, which passing symmetrically between the drive wheels 16 and symmetrically and longitudinally through the vehicle 1. For this reason the propeller shaft 8 will extend beside the centre line 44 that pass symmetrically and longitudinally through the vehicle 1 .
  • the input shaft 13 and the output shaft 22 of the transmission 6 have a parallel extension in relation to each other.
  • the center axis of the propeller shaft 8 extends in an angle in relation to the center axis of the output shaft 22 of the trans mission 6.
  • Fig. 5 schematically illustrates a section view along line V-V in fig. 4 according to an example.
  • the propeller shaft 8 extends beside a symmetrical line 46 that pass between the propulsion units 4.
  • the output shaft 22 of the transmission 6 and thus the propeller shaft 8 is positioned a distance from a common centre line 48 that pass through the input shafts 13, 15 of the transmission 6, and thus of the propulsion units 4.
  • the propulsion units 4 can be arranged close to each other, so that the transmission requires less space in the vehicle 1.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

The invention relates to a powertrain (2) for a vehicle (1). The powertrain (2) comprising: at least one propulsion unit (4); a transmission (6) connected to the at least one propulsion unit (4); a propeller shaft (8) connected to the transmission (6), and at 5 least one drive shaft (10) of a rear axle (12), which at least one drive shaft (10) is connected to the propeller shaft (8), so that the propeller shaft (8) extends between the transmission (6) and the at least one drive shaft (10). The at least one propulsion unit (4) is arranged in a position between the transmission (6) and the rear axle (12) in a longitudinal direction of the vehicle (1). The invention also relates to a vehicle (1).

Description

A POWERTRAIN FOR A VEHICLE AND A VEHICLE CONSISTING THE POWERTRAIN
TECHNICAL FIELD
The invention relates to a powertrain for a vehicle according to the appended claims.
The invention further relates to a vehicle according to the appended claims.
BACKGROUND
Depending on the type of propulsion unit in a power train, different types of fuel or power should be supplied to the propulsion unit. If the propulsion unit is an electrical machine, the electrical machine should be supplied with electrical power. If the pro pulsion unit is an internal combustion engine, the internal combustion engine should be supplied with fuel, such as diesel fuel or petrol. When a vehicle is provided with the powertrain, the propulsion unit may comprise an electrical machine and/or an in ternal combustion engine.
The operating range of the vehicle may be extended if the fuel or electric power sup ply of the vehicle is large. Fuel is stored in energy storage units, such as fuel tanks of the vehicle. Electrical power is stored in energy storage units of the vehicle. The en ergy storage units are arranged on the vehicle, so that they do not end up in conflict with other components on the vehicle.
There are electric vehicles, which comprises receiving portions for energy storage units on side portions of the vehicle and between front and rear wheels.
SUMMARY
A vehicle, which only propulsion unit is an electrical machine, the storage of energy storage units and the capacity of the energy storage units are critical for the opera tion range of the vehicle. A large energy storage unit or a number of small energy storage units require space in the vehicle. In addition, a vehicle comprises compo nents such as shafts, frames, and components in the powertrain, which restrict the possibility to arrange large energy storage units on the vehicle. If the propulsion unit also comprises an internal combustion engine, additional storage of fuel in the en ergy storage unit, such as a fuel tank is required. Arranging a conventional power- train rearwards in the vehicle in a direction towards a rear axle for rear drive wheels of the vehicle may not satisfactory create more space in front of the propulsion unit. Since the length of a propeller shaft of the powertrain will decrease to a critical length and joint angles will exceed the maximum allowable angle both in normal driving po sition and at rear axle movements when arranging the conventional powertrain rear wards, the space in front of the powertrain and behind the front axle will be restricted.
Therefore, it is desired to arrange a powertrain for a vehicle in a position that a space is created for accommodating energy storage units. Further, it is desired to arrange a propulsion unit of a powertrain in a position that allows the propeller shaft to move within allowable angles both in normal driving position and at rear axle movements.
An object of the invention is therefore to arrange a powertrain for a vehicle in a posi tion that a space is created for accommodating energy storage units.
A further object of the invention is to arrange a propulsion unit of a powertrain in a position that allows the propeller shaft to move within allowable angles both in normal driving position and at rear axle movements.
A further object of the invention is to arrange a propulsion unit of a powertrain in a position that allows the propeller shaft to move within allowable angles for different vehicle configurations.
The herein mentioned objects are achieved with a powertrain for a vehicle according to the appended claims. The herein mentioned objects are also achieved with a vehi cle according to the appended claims.
According to an aspect of the invention, a powertrain for a vehicle is provided. The powertrain comprising: at least one propulsion unit; a transmission connected to the at least one propulsion unit; a propeller shaft connected to the transmission, and at least one drive shaft of a rear axle, which at least one drive shaft is connected to the propeller shaft, so that the propeller shaft extends between the transmission and the at least one drive shaft, wherein the at least one propulsion unit is arranged in a posi tion between the transmission and the rear axle in a longitudinal direction of the vehi cle.
According to a further aspect of the invention, a vehicle is provided. The vehicle, comprising the powertrain disclosed herein.
By arranging such a powertrain in a position in the vehicle, a space is created for ac commodating energy storage units for electric power and/or fuel in the vehicle. Fur ther, by arranging such a propulsion unit of a powertrain in a position in the vehicle, allows the propeller shaft to move within allowable angles both in normal driving posi tion and at rear axle movements.
The powertrain may use only electrical machines as a propulsion unit. Since a space is created for accommodating energy storage units in the vehicle, the storage and the capacity of electrical power for propulsion of the electrical machines increase the op eration range of the vehicle. The created space in the vehicle may accommodate a large energy storage unit or a number of small energy storage units. Vehicle compo nents such as shafts, frames, and components in the powertrain will be arranged out side the created space for the energy storage units. If the propulsion unit also com prises an internal combustion engine, the accommodation of an energy storage unit for fuel is possible in the created space in the vehicle. The length of a propeller shaft of the powertrain will be enough for handle maximum allowable angles both in normal driving position and at rear axle movements. Also joint angles will fall within allowable angels for universal joints between the propeller shaft and the transmission and the drive shaft. Thus, by arranging the at least one propulsion unit in a position between the transmission and the rear axle in the longitudinal direction of the vehicle will cre ate an essential space in front of the powertrain. Further, when arranging the power- train rearwards in the vehicle in a direction towards rear axle of the vehicle, the cre ated space in front of the powertrain will be even larger. Further, to realize a form fac tor of the propulsion unit, where several internal components, such as the propulsion unit, arranged in parallel with propeller shaft, reduces the unit longitude length and give even more space in front of the powertrain. Additional objectives, advantages and novel features of the invention will be apparent to one skilled in the art from the following details, and through exercising the invention. While the invention is described below, it should be apparent that the invention may not be limited to the specifically described details. One skilled in the art, having access to the teachings herein, will recognize additional applications, modifications and incor porations in other areas, which are within the scope of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
For fuller understanding of the present disclosure and further objects and advantages of it, the detailed description set out below should be read together with the accompa nying drawings, in which the same reference notations denote similar items in the var ious figures, and in which:
Fig. 1 schematically illustrates a side view of a vehicle with a powertrain according to an example;
Fig. 2 schematically illustrates a view from above of a powertrain according to an ex ample;
Figures 3a-3c schematically illustrate side views of a powertrain according to an ex ample;
Fig. 4 schematically illustrates a view from below of a powertrain according to an ex ample; and
Fig. 5 schematically illustrates a section view along line V-V in fig. 4 according to an example.
DETAILED DESCRIPTION
The powertrain according to the present disclosure may be arranged in a position in a vehicle such that a space is created for accommodating energy storage units in the vehicle. Further, a propulsion unit of the powertrain according to the present disclo sure may be arranged in a position in the vehicle, so that the propeller shaft is al lowed to move within allowable angles both in normal driving position and at rear axle movements.
According to the present disclosure, a powertrain for a vehicle is provided. The powertrain comprising at least one propulsion unit, a transmission connected to the at least one propulsion unit, a propeller shaft connected to the transmission, and at least one drive shaft of a rear axle. The at least one drive shaft is connected to the propeller shaft, so that the propeller shaft extends between the transmission and the at least one drive shaft. The at least one propulsion unit is arranged in a position be tween the transmission and the rear axle in a longitudinal direction of the vehicle.
The powertrain in the vehicle transfers power from the propulsion unit to drive wheels of the vehicle. The vehicle may be a heavy vehicle, e.g. a truck or a bus. The vehicle may alternatively be a passenger car. The vehicle may be driven by a driver. The ve hicle may be remotely operated or autonomously operated. The drive wheels may be arranged in a rear part of the vehicle or in a front part of the vehicle. All wheels of the vehicle may be drive wheels. The propulsion unit may comprise one or several elec trical machines. Alternatively, the propulsion unit may be an internal combustion en gine. It is also possible to combine one or several electrical machines with an internal combustion engine in the powertrain. Such combination may allow the electrical ma chines and the internal combustion engine to work independently of each other or to work in combination as a hybrid drive.
The transmission may be a gearbox, comprising gear wheels for transferring torque and gear ratio. The transmission may be a gearbox, comprising a chain or a belt transmission for transferring torque and gear ratio. The gear ratio over the transmis sion may be fixed or variable. The gear ration may be 1 :1. The gearbox may be an automatic or a manual transmission. The gearbox may be an automatic-manual- transmission, such as an AMT gearbox.
The propeller shaft is configured to transfer rotational motion and torque between the transmission and the at least one drive shaft of the rear axle. The propeller shaft is with a first end connected to an output shaft of the transmission and with a second end connected to the at least one drive shaft. The second end of the propeller shaft may be connected to the at least one drive shaft via a differential gear, which is ar ranged in the rear axle. The differential gear comprises an input shaft, which is con nected to the propeller shaft, and two output shafts, each connected to a drive shaft. Each drive shaft is connected to a drive wheel, for driving the vehicle. The at least one drive shaft is configured to transfer rotational motion and torque between the propeller shaft and the drive wheel. The propeller shaft may have an extension in the same direction as the extension of the output shaft of the transmission and the exten sion of the input shaft of the differential gear. However, the propeller shaft may have an extension in another direction than the extension of the output shaft of the trans mission and the extension of the input shaft of the differential gear. The rear axle may have an extension from one rear drive wheel at one side of the vehicle to an other drive wheel on the other side of the vehicle. The vehicle may comprise a frame. The powertrain may be connected or attached to the frame. Thus, the propulsion unit, transmission, and the rear axle may be connected or attached to the frame. The rear axle may be connected to the frame by means of a suspension, which allows the rear axle to move in a vertical direction in relation to the extension of the frame.
The at least one propulsion unit is arranged in a position between the transmission and the rear axle in a longitudinal direction of the vehicle. The transmission may be a gearbox. Thus, the at least one propulsion unit is arranged in a position between the gearbox and the rear axle in a longitudinal direction of the vehicle. Further, the at least one propulsion unit is positioned in parallel with the gearbox output shaft and the propeller shaft. In front of the transmission, and thus in front of the powertrain a space is created when the at least one propulsion unit is arranged in a position be tween the transmission and the rear axle. The definition of the longitudinal direction of the vehicle, is a direction from the front part of the vehicle to the rear part of the ve hicle. The created space in front of the transmission, and thus in front of the power- train, may accommodate energy storage units for storing electrical power. The cre ated space may alternatively, or in combination, accommodate energy storage units for liquid fuel, such as diesel fuel or petrol. The created space for accommodating energy storage units increases the storage and the capacity of electrical power and/or liquid fuel for propulsion of the propulsion units, and thus increases the operation range of the vehicle. The created space in the vehicle may accommodate a large energy storage unit or a number of small energy storage units.
Vehicle components such as shafts, frames, and components in the powertrain will be arranged outside the created space for the energy storage units. Thus, by arrang ing the at least one propulsion unit in a position between the transmission and the rear axle in the longitudinal direction of the vehicle will create an essential space in front of the powertrain. Further, when arranging the powertrain rearwards in the vehi cle in a direction towards rear axle of the vehicle, the created space in front of the powertrain will be even larger.
According to an example, the at least one propulsion unit and the propeller shaft are connected in parallel to the transmission.
The input shaft of the transmission is connected to the at least one propulsion unit. The output shaft of the transmission is connected to the propeller shaft. The input shaft and the output shaft of the transmission have a parallel extension in relation to each other. The input shaft and the output shaft of the transmission extend in the same direction. When the transmission is arranged in the vehicle, the input shaft and the output shaft of the transmission extend in a direction towards the rear axle and the rear part of the vehicle. Connecting the at least one propulsion unit and the pro peller shaft in parallel to the transmission will result in a compact powertrain and a large space in front of the transmission for accommodating energy storage units. The axis of the propeller shaft may be directed in different angels in relation to an axis of the output shaft of the transmission.
According to an example, a center axis of the propeller shaft extends in an angle in relation to a center axis of an output shaft of the transmission to which the propeller shaft is connected. The propeller shaft is connected to the output shaft of the transmission. The input shaft and the output shaft of the transmission have a parallel extension in relation to each other. However, depending on the vehicle configuration the center axis of the propeller shaft may extend in an angle in relation to the center axis of the output shaft of the transmission.
According to an example, the axial extension of the powertrain in the longitudinal di rection of the vehicle, from the connection between the propeller shaft and the drive shaft, corresponds to the common extension of the propeller shaft and the transmis sion in the longitudinal direction of the vehicle.
The length of the powertrain, from the point of connection between the propeller shaft and the drive shaft of the rear axis, is the common extension of the propeller shaft and the transmission in the longitudinal direction of the vehicle. Thus, the length of the propeller shaft and the length or the longitudinal packaging volume of the trans mission will define the extension of the powertrain in front of the rear axle. A short propeller shaft and/or a short or more compact transmission, will create a large space in front of the powertrain for accommodating energy storage units.
According to an example, the axial extension of the transmission in the longitudinal direction of the vehicle is less than 20% of the common axial extension of the propel ler shaft and the transmission in the longitudinal direction of the vehicle.
When the transmission has an axial extension, a length or a thickness, which is less than 20% of the common axial extension of the propeller shaft and the transmission in the longitudinal direction of the vehicle a compact powertrain is achieved. The lim ited length or a thickness of the transmission will limit the extension of the powertrain in front of the rear axle. As a result, a large space in front of the powertrain is created for accommodating energy storage units.
According to an example, the axial extension of the transmission in the longitudinal direction of the vehicle is less than 10% of the common axial extension of the propel ler shaft and the transmission in the longitudinal direction of the vehicle. When the transmission has an axial extension, a length or a thickness, which is less than 10% of the common axial extension of the propeller shaft and the transmission in the longitudinal direction of the vehicle a compact powertrain is achieved. The lim ited length or a thickness of the transmission will limit the extension of the powertrain in front of the rear axle. The transmission having an axial extension less than 10% of the common axial extension of the propeller shaft and the transmission may create a larger space in front of the powertrain than a transmission having an axial extension less than 20% of the common axial extension of the propeller shaft and the transmis sion. Therefore, such transmission having an axial extension less than 10% of the common axial extension of the propeller shaft and the transmission will create an even larger space in front of the powertrain for accommodating energy storage units.
According to an example, the at least one propulsion unit is an electrical machine.
The powertrain may use only electrical machines as a propulsion unit. The propulsion unit may comprise a large electrical machine provided with enough torque and power for propelling the vehicle. Alternatively, a number of propulsion units may be ar ranged in the powertrain, comprising a number of small electrical machines, which to gether are provided with enough torque and power for propelling the vehicle. The storage and the capacity of electrical power for propulsion of the electrical machines will increase the operation range of the vehicle due to the larger accommodation ca pacity of the energy storage units.
According to an example, the powertrain comprises at least two propulsion units, wherein the at least two propulsion units comprises at least one electrical machine and an internal combustion engine.
An electrical machine may be combined with an internal combustion engine in the powertrain. It is also possible to combine one or several electrical machines with an internal combustion engine in the powertrain. Such combination may allow the elec trical machines and the internal combustion engine to work independently of each other or to work in combination as a hybrid drive. The electrical machine is connected to a first input shaft of the transmission and the internal combustion engine is con nected to a second input shaft of the transmission. The storage and the capacity of electrical power and fluid fuel for propulsion of the electrical machines and the inter nal combustion engine will increase the operation range of the vehicle due to the larger accommodation capacity of the energy storage units in the created space in front of the powertrain.
According to an example, the electrical machine and the internal combustion engine are arranged in a position between the transmission and the rear axle and parallel to each other.
The electrical machine and the internal combustion engine are arranged in a position between the transmission and the rear axle in a longitudinal direction of the vehicle.
In front of the transmission, and thus in front of the powertrain a space is created when the electrical machine and the internal combustion engine are arranged in a position between the transmission and the rear axle. The created space in front of the transmission, and thus in front of the powertrain, may accommodate energy stor age units for storing electrical power and liquid fuel, such as diesel fuel or petrol. The electrical machine is connected to a first input shaft of the transmission and the inter nal combustion engine is connected to a second input shaft of the transmission. The first and second input shafts of the transmission are arranged in parallel to each other, so that they have a parallel extension in relation to each other. The first and second input shafts of the transmission extend in the same direction. When the trans mission is arranged in the vehicle, the first and second input shafts of the transmis sion in a direction towards the rear axle and the rear part of the vehicle. Connecting the electrical machine and the internal combustion engine in parallel to each other will result in a compact powertrain and a large space in front of the transmission for accommodating energy storage units.
According to an example, the propeller shaft is connected to the transmission and to the at least one drive shaft by means of universal joints, so that the propeller shaft is allowed to change its direction of axial extension, when the rear axle moves in a ver tical direction.
The length of a propeller shaft of the powertrain will be enough for handle maximum allowable angles both in normal driving position and at rear axle movements. Also joint angles between the propeller shaft and the transmission, and between the pro peller shaft and the drive shaft, will fall within allowable angels for universal joints.
The powertrain may be arranged rearwards in the vehicle in a direction towards rear axle of the vehicle as far as the length of a propeller shaft will be enough for handle the maximum allowable angles. Arranging the powertrain as far as possible towards the rear axle will create an even larger space in front of the powertrain for accommo dating energy storage units.
According to an example, the propeller shaft is telescopically configured, allowing the length of the propeller shaft to vary when the rear axle moves in a perpendicular di rection in relation to the longitudinal direction of the vehicle.
When the rear axle moves in a perpendicular direction in relation to the longitudinal direction of the vehicle and the position of the transmission is fixed, the distance be tween the rear axle and the transmission will change. Since the propeller shaft is connected to the transmission in a first end and connected to the drive shaft of the rear axle with the second end, the length of the propeller will change by means of the telescopic configuration when the rear axle moves in a perpendicular direction in re lation to the longitudinal direction of the vehicle. The powertrain may be arranged rearwards in the vehicle in a direction towards rear axle of the vehicle as far as the length of a propeller shaft will accept the telescopically configuration. Arranging the powertrain as far as possible towards the rear axle will create an even larger space in front of the powertrain for accommodating energy storage units.
According to the present disclosure, a vehicle is provided. The vehicle, comprising the powertrain disclosed herein. A vehicle provided with such a powertrain will have an increased the operation range due to the extended storing capacity of electrical power and/or fuel in the space created in front of the powertrain in the vehicle.
According to an example, an energy storage unit is arranged in front of the power- train in the vehicle. The created space in front of the powertrain in the vehicle will ac commodate an energy storage unit depending on the type of propulsion unit. The present disclosure will now, according to an example, be further illustrated with reference to the appended figures.
Fig. 1 schematically illustrates a side view of a vehicle 1 with a powertrain 2 accord ing to an example. The powertrain 2 comprising a propulsion unit 4, a transmission 6 connected to the at least one propulsion unit 4 and a propeller shaft 8 connected to the transmission 6, and at least one drive shaft 10 of a rear axle 12. The at least one drive shaft 10 is connected to the propeller shaft 8, so that the propeller shaft 8 ex tends between the transmission 6 and the at least one drive shaft 10. The at least one propulsion unit 4 is arranged in a position between the transmission 6 and the rear axle 12 in a longitudinal direction of the vehicle 1 . An energy storage unit 14 is arranged in front of the powertrain 2. The energy storage unit 14 is connected to the propulsion unit 4 and deliver power to the propulsion unit 4. A number of propulsion units 4 may be arranged in series. The vehicle 1 comprises rear drive wheels 16 and front wheels 18.
Fig. 2 schematically illustrates a view from above of a powertrain 2 according to an example. Two propulsion units 4 are arranged in the powertrain 2. The propulsion units 4 may be electrical machines, which together provide torque and power for pro pelling the vehicle 1. According to an example, one propulsion unit 4 may be an elec trical machine and the other propulsion unit 4 may be an internal combustion engine. The electrical machine and the internal combustion engine are arranged in a position between the transmission 6 and the rear axle 12 and parallel to each other. A first in put shaft 13 of the transmission 6 is connected to one propulsion unit 4. A second in put shaft 15 of the transmission 6 is connected to the other propulsion unit 4. The propeller shaft 8 is with a first end 20 connected to an output shaft 22 of the transmis sion 6 and with a second end 24 connected to the drive shafts 10 of the rear axle 12. The second end 24 of the propeller shaft 8 may be connected to the drive shafts 10 via a differential gear 26, which is arranged in the rear axle 12. The differential gear 26 comprises an input shaft 28, which is connected to the propeller shaft 8, and two output shafts 30, each connected to a drive shaft 10. Each drive shaft 10 is con nected to a drive wheel 16, for driving the vehicle 1 . An energy storage unit 14 is ar ranged in front of the powertrain 2. The front wheels 18 of the vehicle 1 are steerable by means of a linkage mechanism 32. The propulsion units 4 and the propeller shaft 8 are connected in parallel to the transmission 6. The axial extension of the power train 2 in the longitudinal direction of the vehicle 1 , from the connection between the propeller shaft 8 and the drive shaft 10, corresponds to the common axial extension of the propeller shaft 8 and the transmission in the longitudinal direction of the vehicle 1. The axial extension of the transmission 6 in the longitudinal direction of the vehicle
1 is less than 20% of the common axial extension of the propeller shaft 8 and the transmission 6 in the longitudinal direction of the vehicle 1. According to another ex ample, the axial extension of the transmission 6 in the longitudinal direction of the ve hicle 1 my be less than 10% of the common axial extension of the propeller shaft 8 and the transmission 6 in the longitudinal direction of the vehicle 1.
Figures 3a-3c schematically illustrate side views of a powertrain 2 according to an example. The length of the propeller shaft 8 will handle maximum allowable angles both in normal driving position and at movements of the rear axle 12. The length of the propeller shaft 8 will also handle different vehicle 1 heights. The connections between the propeller shaft 8 and the transmission 6 and the drive shafts 10 are accomplished by means of universal joints 34. Also angles between the propeller shaft 8 and the transmission 6 and the drive shaft 10 will fall within allowable angels for the universal joints 34. In fig. 3a the powertrain 2 is shown in a normal driving position in which the extension of the propeller shaft 8, the output shaft 22 of the transmission 6 and the input shaft 28 of the differential gear 26 coincides and follow a common line. Such a normal driving position will take place when the vehicle 1 is driving on a smooth or uniform road 36. In fig. 3b the powertrain 2 is shown in a driving position in which the drive wheels 16 are on the top of a bump 38 or a protrusion in the road 36. Thus, the drive wheels 16 and the rear axle 12 has moved in a vertical direction upwards in relation to the longitudinal direction of the vehicle 1. In such situation there will be an angle between the extension of the propeller shaft 8, the output shaft 22 of the trans mission 6 and the input shaft 28 of the differential gear 26. When the rear axle 12 moves in a vertical or perpendicular direction in relation to the longitudinal direction of the vehicle 1 and the position of the transmission 6 is fixed, the distance between the rear axle 12 and the transmission 6 will change. Since the propeller shaft 8 is con nected to the transmission 6 at its first end 22 and connected to the drive shaft 10 of the rear axle 12 with its second end 24, the length of the propeller shaft 8 will change by means of a telescopic configuration 40 when the rear axle 12 moves in a perpen dicular direction in relation to the longitudinal direction of the vehicle 1. In fig. 3c the powertrain 2 is shown in a driving position in which the driving wheels 16 are in a cavity 42 in the road. Thus, the drive wheels 16 and the rear axle 12 has moved in a vertical direction downwards in relation to the longitudinal direction of the vehicle 1. In such situation there will be an angle between the extension of the propeller shaft 8, the output shaft 22 of the transmission 6 and the input shaft 28 of the differential gear 26.
Fig. 4 schematically illustrates a view from below of a powertrain 2 according to an example. The propeller shaft 8 is with the first end 20 connected to the output shaft 22 of the transmission 6 and with the second end connected to the drive shafts 10 of the rear axle 12. The second end 24 of the propeller shaft 8 is connected to the drive shafts 10 via the differential gear 26. The input shaft 28 of the differential gear 26 is arranged beside a centre line 44, which passing symmetrically between the drive wheels 16 and symmetrically and longitudinally through the vehicle 1. For this reason the propeller shaft 8 will extend beside the centre line 44 that pass symmetrically and longitudinally through the vehicle 1 . The input shaft 13 and the output shaft 22 of the transmission 6 have a parallel extension in relation to each other. The center axis of the propeller shaft 8 extends in an angle in relation to the center axis of the output shaft 22 of the trans mission 6.
Fig. 5 schematically illustrates a section view along line V-V in fig. 4 according to an example. The propeller shaft 8 extends beside a symmetrical line 46 that pass between the propulsion units 4. In addition, the output shaft 22 of the transmission 6 and thus the propeller shaft 8 is positioned a distance from a common centre line 48 that pass through the input shafts 13, 15 of the transmission 6, and thus of the propulsion units 4. With this configuration, the propulsion units 4 can be arranged close to each other, so that the transmission requires less space in the vehicle 1.
The foregoing description of the examples has been furnished for illustrative and de scriptive purposes. It is not intended to be exhaustive, or to limit the examples to the variants described. Many modifications and variations will obviously be apparent to one skilled in the art. The examples have been chosen and described in order to best explicate principles and practical applications, and to thereby enable one skilled in the art to understand the examples in terms of its various examples and with the vari ous modifications that are applicable to its intended use. The components and fea tures specified above may, within the framework of the examples, be combined be tween different examples specified.

Claims

1. A powertrain (2) for a vehicle (1 ), the powertrain (2) comprising:
at least one propulsion unit (4);
a transmission (6) connected to the at least one propulsion unit (4);
a propeller shaft (8) connected to the transmission (6), and
at least one drive shaft (10) of a rear axle (12), which at least one drive shaft (10) is connected to the propeller shaft (8), so that the propeller shaft (8) extends be tween the transmission (6) and the at least one drive shaft (10),
wherein
the at least one propulsion unit (4) is arranged in a position between the trans mission (6) and the rear axle (12) in a longitudinal direction of the vehicle (1 ),
characterized in that the axial extension of the power train (2) in the longitudi nal direction of the vehicle (1 ), from the connection between the propeller shaft (8) and the drive shaft (10), corresponds to the common extension of the propeller shaft (8) and the transmission (6) in the longitudinal direction of the vehicle (1 ).
2. The powertrain (2) according to claim 1 , wherein the at least one propulsion unit (4) and the propeller shaft (8) are connected in parallel to the transmission (6).
3. The powertrain (2) according to claim 2, wherein a center axis of the propeller shaft (8) extends in an angle in relation to a center axis of an output shaft (22) of the transmission (6) to which the propeller shaft (8) is connected.
4. The powertrain (2) according to any one of the preceding claims, wherein the axial extension of the transmission (6) in the longitudinal direction of the vehicle (1 ) is less than 20% of the common axial extension of the propeller shaft (8) and the transmis sion (6) in the longitudinal direction of the vehicle (1 ).
5. The powertrain (2) according to claim 4, wherein the axial extension of the trans mission (6) in the longitudinal direction of the vehicle (1 ) is less than 10% of the com mon axial extension of the propeller shaft (8) and the transmission (6) in the longitu dinal direction of the vehicle (1 ).
6. The powertrain (2) according to any one of the preceding claims, wherein the at least one propulsion unit (4) is an electrical machine.
7. The powertrain (2) according to any one of the preceding claims, wherein the powertrain (2) comprises at least two propulsion units (4), wherein the at least two propulsion units (4) comprises at least one electrical machine and an internal com bustion engine.
8. The powertrain (2) according to claim 7, wherein the electrical machine and the in ternal combustion engine are arranged in a position between the transmission (6) and the rear axle (12) and parallel to each other.
9. The powertrain (2) according to any one of the preceding claims, wherein the pro peller shaft (8) is connected to the transmission (6) and to the at least one drive shaft (10) by means of universal joints (34), so that the propeller shaft (8) is allowed to change its direction of axial extension, when the rear axle (12) moves in a vertical di rection.
10. The powertrain (2) according to any one of the preceding claims, wherein the pro peller shaft (8) is telescopically configured, allowing the length of the propeller shaft (8) to vary when the rear axle (12) moves in a perpendicular direction in relation to the longitudinal direction of the vehicle (1 ).
1 1 . A vehicle (1 ), comprising a powertrain (2) according to any one of the preceding claims.
12. The vehicle (1 ) according to claim 1 1 , wherein an energy storage unit (14) is ar ranged in front of the powertrain (2) in the vehicle (1 ).
PCT/SE2020/050147 2019-03-08 2020-02-12 A powertrain for a vehicle and a vehicle consisting the powertrain WO2020185139A1 (en)

Priority Applications (5)

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CN202080012484.5A CN113396077A (en) 2019-03-08 2020-02-12 Powertrain for a vehicle and vehicle comprising a powertrain
EP20768938.1A EP3934928A4 (en) 2019-03-08 2020-02-12 A powertrain for a vehicle and a vehicle consisting the powertrain
US17/435,686 US12071018B2 (en) 2019-03-08 2020-02-12 Powertrain for a vehicle and a vehicle consisting the powertrain
BR112021013044-6A BR112021013044A2 (en) 2019-03-08 2020-02-12 A POWER TRAIN FOR A VEHICLE AND A VEHICLE CONSISTING OF THE POWER TRAIN
RU2021121400A RU2767094C1 (en) 2019-03-08 2020-02-12 Power circuit for a vehicle

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SE1950296A SE543268C2 (en) 2019-03-08 2019-03-08 A powertrain for a vehicle and a vehicle comprising a powertrain
SE1950296-2 2019-03-08

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CN (1) CN113396077A (en)
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EP3934928A4 (en) 2022-12-14
US20220153120A1 (en) 2022-05-19
RU2767094C1 (en) 2022-03-16
EP3934928A1 (en) 2022-01-12
SE543268C2 (en) 2020-11-10
SE1950296A1 (en) 2020-09-09
CN113396077A (en) 2021-09-14
BR112021013044A2 (en) 2021-09-21
US12071018B2 (en) 2024-08-27

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