WO2022233356A1 - Transmission hybride et chaîne cinématique à transmission - Google Patents

Transmission hybride et chaîne cinématique à transmission Download PDF

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Publication number
WO2022233356A1
WO2022233356A1 PCT/DE2022/100241 DE2022100241W WO2022233356A1 WO 2022233356 A1 WO2022233356 A1 WO 2022233356A1 DE 2022100241 W DE2022100241 W DE 2022100241W WO 2022233356 A1 WO2022233356 A1 WO 2022233356A1
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WO
WIPO (PCT)
Prior art keywords
electric machine
torque
hybrid transmission
transmission
drive train
Prior art date
Application number
PCT/DE2022/100241
Other languages
German (de)
English (en)
Inventor
Steffen Lehmann
Original Assignee
Schaeffler Technologies AG & 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
Priority claimed from DE102022106550.2A external-priority patent/DE102022106550A1/de
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2022233356A1 publication Critical patent/WO2022233356A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/442—Series-parallel switching type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—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
    • B60K6/40—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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • 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
    • B60K2006/266—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 with two coaxial motors or generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator

Definitions

  • the invention relates to a hybrid transmission for a hybrid vehicle, with a first torque drive train, which has an input shaft that can be connected to an internal combustion engine and a first electric machine/electrical machine/e-machine that can be connected or connected to the input shaft in a torque-transmitting manner, a second torque drive train that has a has a different second electric machine/electrical machine/e-machine than the first electric machine, an output shaft/drive axle which can be connected or connected in a torque-transmitting manner to the first torque drive train and/or to the second torque drive train, the first electric machine and the second electric machine being arranged coaxially are.
  • the invention relates to a drive train with such a hybrid transmission.
  • WO 2019/242 798 A1 discloses a drive unit for a drive train of an electrically drivable motor vehicle, in particular a hybrid motor vehicle, with a first electric machine and a second electric machine and a first shaft and an output shaft, with a rotor of the first electric machine is non-rotatably connected to the first shaft and a rotor of the second electric machine is non-rotatably connected to the output shaft and the drive unit also has a separating clutch with which the rotor of the first electric machine can be connected or connected to the output shaft for torque transmission, wherein the drive unit also has a connection element for connecting an internal combustion engine, the first electrical machine being operable in generator mode and the rated speed n1 of the first electrical machine for the rated speed n2 of the second electrical M machine is in the ratio n1 > 1.2 x n2.
  • Various transmission structures of such a hybrid transmission are also known from patent applications US 2016/02185
  • hybrid transmissions are also referred to as dedicated hybrid transmissions (DHT).
  • DHT dedicated hybrid transmissions
  • the mechanical part of the transmission is simplified, for example by eliminating the reverse gear, and instead at least one electric machine integrated in the transmission is used to provide the full range of functions.
  • Dedicated hybrid transmissions can be derived from known transmission concepts, i.e. double clutch transmissions, torque converter planetary transmissions, continuously variable transmissions (CVT) or automated manual transmissions.
  • the electrical machine becomes part of the transmission, and it can be connected to different transmission shafts.
  • one or more power-split operating states can also be generated in combination with a planetary gear.
  • a serial hybrid mode is understood to mean that the internal combustion engine no longer has a mechanical/torque-transmitting connection to the drive axle/output shaft.
  • the internal combustion engine drives the first electric machine, which mainly functions as a generator, which in turn supplies the second electric machine, which mainly functions as a traction motor/drive motor, with electricity or charges a battery.
  • the drive axle is driven by the second electric machine.
  • a parallel hybrid mode is understood to mean that the internal combustion engine has a mechanical/torque-transmitting connection to the drive axle/output shaft.
  • the second electric machine can run idle, boost or recuperate.
  • a hybrid transmission and a drive train with a hybrid transmission are to be provided, which are designed to save as much space as possible even at high torques and without restricting functionality.
  • this object is achieved in a generic device according to the invention in that rotors of the first electric machine are attached to a first rotor shaft in a torque-proof manner, rotors of the second electric machine are attached to a second rotor shaft in a torque-proof manner, and the second rotor shaft is designed as a hollow shaft, in which is rotatably mounted the first rotor shaft.
  • the second rotor shaft can itself be a hollow shaft in order, for example, to transport coolant or brake fluid within the rotor shaft.
  • the second rotor shaft can also be designed as a solid shaft radially inside the hollow shaft. that at least one of the first electric machine and the second electric machine is designed as an axial flow machine.
  • the magnetic flux in axial flux machines runs parallel to the axis of rotation.
  • Axial flow machines which are also referred to as disc rotor machines, are known, for example, from DE 10 2019 122 314 A1.
  • the first electric machine and the second electric machine can each be designed as an axial flow machine. In this way, the power density can be further increased compared to known hybrid transmissions.
  • one of the first electric machine and the second electric machine can be designed as an axial flux machine and the other of the first electric machine and the second electric machine can be designed as a radial flux machine.
  • the second electric machine can be designed as an axial flow machine, so that high torques can be provided at the output shaft, particularly in the serial hybrid mode.
  • the first electric machine can be designed as an axial flow machine, so that, for example, boosting in the parallel hybrid mode is particularly powerful.
  • the first rotor shaft can reach through the first electric machine axially.
  • the second rotor shaft can reach through the second electric machine axially. Provision is particularly preferably made here for both rotor shafts to reach through the respective electric machine axially, i.e. to be present axially on both sides of the respective rotors of the corresponding electric machine. In this way, corresponding axial points of application on the rotor shafts can be achieved in a favorable manner.
  • first rotor shaft provision can then be made for the first rotor shaft to be positioned axially outside and axially on both sides of the first electric machine or their rotors is mounted.
  • second rotor shaft is mounted axially outside and axially on both sides of the second electric machine or its rotors.
  • the first electric machine and the second electric machine can be arranged axially adjacent. This makes it particularly easy to ensure that the second electric machine is supplied with electricity that was generated by the first electric machine.
  • the first electric machine and the second electric machine can both be arranged on the same axial side of a transmission, preferably on the side of the transmission opposite the internal combustion engine.
  • This can represent a geometry that is favorable in terms of installation space, and the supply lines can also be laid particularly favorably within the transmission.
  • the first electric machine can be coupled or can be coupled to the internal combustion engine and essentially operated by it as a generator, and the second electric machine can essentially function as a drive motor.
  • the first electric machine preferably serves as a generator for supplying the second electric machine with electricity. This means that the first electric machine is preferably electrically connected to the second electric machine.
  • the first electric machine can also serve as a generator for charging a battery.
  • the first electric machine can serve as a drive motor/traction motor, in particular for boosting in the serial hybrid mode.
  • the hybrid transmission can also have a separating clutch, which connects the first torque drive train to the output shaft in a first switching state in a torque-transmitting manner and separates it from the output shaft in a torque-transmitting manner in a second switching state, so that the second electric machine is only coupled to the internal combustion engine in a first switching state the separating clutch is possible.
  • a particularly simple construction of the hybrid transmission can be achieved.
  • This has the advantage that, depending on the switching position of the separating clutch, which is usually located between the internal combustion engine and the drive axle/output shaft or between the first electric machine and the second electric machine, serial driving/serial hybrid mode occurs in the open state and parallel driving in the closed state driving/the parallel hybrid mode is enabled. This makes it easy to switch between serial and parallel hybrid mode.
  • the hybrid transmission can have a torsional vibration damper which is arranged on the input shaft on the same axial side of the transmission as the internal combustion engine.
  • the input shaft has two input shaft sections which can be rotated relative to one another and which are connected to one another via the torsional vibration damper.
  • One of the input shaft sections can be connected to the internal combustion engine and the other of the input shaft sections can be connected or is connected to the first electric machine without translation.
  • the hybrid transmission can have at least one second gear stage, preferably (at least or exactly) the second gear stage and a third gear stage, via which the second electric machine is connected to the output shaft. This has the advantage that the torque and the speed of the second torque drive train can be translated in a suitable manner.
  • the hybrid transmission can have a first translation stage, via which the input shaft is (directly) connected to the first electric machine.
  • the hybrid transmission can have a differential, which in the torque flow between the first torque drive train and the second torque drive train on the one hand and the output shaft on the other hand is arranged.
  • the torque of the torque drive strands can be transmitted to the output shaft or to two output shafts.
  • the object of the invention is also achieved by a drive train for a hybrid vehicle.
  • the drive train has a hybrid transmission according to the invention and an internal combustion engine, which is connected to the input shaft of the hybrid transmission in a torque-transmitting manner.
  • the torsional vibration damper can preferably be arranged axially between the internal combustion engine and the first electric machine (or the second electric machine).
  • the second electric machine can be arranged axially between the first electric machine and the internal combustion engine or the torsional vibration damper.
  • the invention relates to a 2-E machine hybrid transmission which enables serial driving or serial/parallel driving (i.e. switching between serial and parallel) and in which at least one axial flux machine is provided instead of a radial flux machine (which is otherwise commonly used).
  • both electric machines can also be designed as axial flow machines.
  • the axial flow machines can be arranged coaxially or axially parallel.
  • an electric machine especially the first electric machine
  • an electric machine especially the second electric machine
  • the high power density of the axial flow machine enables a more compact design compared to known hybrid transmissions, in which the axial lengths or outer diameters of the electric machines have to be increased as the torque increases.
  • Fig. 1 is a schematic representation of a hybrid transmission according to the invention and a drive train according to the invention with such a hybrid transmission.
  • the figure is only schematic in nature and is only used to understand the invention.
  • the same elements are provided with the same reference numbers.
  • the hybrid transmission 1 shows a flybridge transmission 1 according to the invention for a hybrid vehicle.
  • the hybrid transmission 1 has a first torque drive train, which has an input shaft 3 that can be connected to an internal combustion engine 2 and a first electric machine 4 that can be connected or is connected to the input shaft 3 in a torque-transmitting manner.
  • the hybrid transmission 1 has a second torque drive train, which has a second electric machine 5 that is different from the first electric machine 4 .
  • the hybrid transmission 1 has an output shaft 6 which can be or is connected via a transmission 7 (not described in detail) to the first torque drive train and/or to the second torque drive train in a torque-transmitting manner.
  • At least one of the first electric machine 4 and the second electric machine 5 is designed as an axial flow machine.
  • the magnetic flux in axial flux machines runs parallel to the axis of rotation.
  • both the first electric machine 4 and the second electric machine 5 are each designed as an axial flow machine.
  • only the first electric machine 4 can be configured as an axial flux machine and the second electric machine 5 can be configured as a radial flux machine, or only the second electric machine 5 can be configured as an axial flux machine and the first electric machine 4 can be configured as a radial flux machine, even if this is not shown .
  • the hybrid transmission 1 can have a separating clutch, not shown, in the transmission 7 .
  • the disconnect clutch torque-transmittingly/mechanically connects the first torque drive train to the output shaft 6 in a first shift state/in a closed state and disconnects the first torque drive train in a second shift state/in a nem open state torque-transmitting / mechanically from the output shaft 6.
  • the clutch can be arranged in the torque flow between the internal combustion engine and the output shaft 6 or between the first electric machine 4 and the second electric machine 5. Depending on the switching position of the separating clutch, it is thus possible to switch between a serial hybrid mode, in which the internal combustion engine 2 is mechanically decoupled, and a parallel hybrid mode.
  • first electric machine 4 and the second electric machine 5 can be arranged coaxially.
  • first electric machine 4 and the second electric machine 5 can be arranged axially parallel, even if this is not shown.
  • Rotors 8 of the first electric machine 4 can preferably be mounted in a torque-proof manner on a first rotor shaft 9 .
  • Rotors 10 of the second electric machine 5 can preferably be attached in a torque-proof manner on a second rotor shaft 11 .
  • a stator 17 of the first electric machine 4 is preferably located axially between the rotors 8 of the first electric machine 4.
  • a stator 18 of the second electric machine 5 is preferably located axially between the rotors 10 of the second electric machine 5.
  • one of the first rotor shaft 9 and the second rotor shaft 11 may be designed as a hollow shaft in which the other of the first rotor shaft 9 and the second rotor shaft 11 is rotatably mounted.
  • the second rotor shaft 11 is formed as the hollow shaft in which the first rotor shaft 9 is rotatably mounted. Both rotor shafts 9 and 11 pass through the respective electric machines 4 and 5 in each case axially completely, so that bearing points for the rotor shafts 9,11 can be provided on both sides of the electric machines 4.5.
  • the bearing point of the first rotor shaft 9 axially facing the transmission 7 lies within the second rotor shaft 11 and is not shown.
  • the first electric machine 4 and the second electric machine 5 can be arranged axially adjacent.
  • the first The electric machine 4 is arranged on an axial side of the second electric machine 5 that faces away from the transmission 7 .
  • the first electric machine 4 can function essentially as a generator.
  • the second electric machine 5 can function essentially as a drive motor.
  • the first electric machine 4 is preferably used as a generator to supply the second electric machine 5 with electricity. This means that the first electric machine 4 is preferably electrically connected to the second electric machine 5 .
  • the first electric machine 4 can serve as a generator for charging an accumulator/battery (for the second electric machine 5).
  • the first electric machine 4 can serve as a drive motor/traction motor.
  • the hybrid transmission 1 can have a torsional vibration damper 12 which is arranged on the input shaft 3 .
  • the input shaft 3 has two input shaft sections 13 , 14 which can be rotated relative to one another and which are connected to one another via the torsional vibration damper 12 .
  • a first input shaft section 13 can be connected to the internal combustion engine 2 and a second input shaft section 14 can be connected or connected to the first electric machine 4 .
  • the hybrid transmission 1 (precisely or at least) can have a first transmission stage in the transmission 7, via which the input shaft 3 is (directly) connected to the first electric machine 4. This means that the first transmission stage connects the input shaft 3 and the first rotor shaft 9 in a torque-transmitting/mechanical manner.
  • the hybrid transmission 1 can have at least one second transmission stage, preferably (exactly or at least) two transmission stages, ie the second transmission stage and a third transmission stage, in the transmission 7, via which the second electric machine is connected to the output shaft 6 .
  • the hybrid transmission 1 can have a differential 15 which is arranged in the torque flow between the first torque drive train and the second torque drive train on the one hand and the output shaft 6 on the other hand.
  • the differential transfers the torque from the transmission 7 to the output shaft 6 or the two output shafts 6.
  • the invention also relates to a drive train 16 for a hybrid vehicle, which has the hybrid transmission 1 and the internal combustion engine 2 that can be or is connected to the input shaft 3 of the hybrid transmission 1 in a torque-transmitting manner.
  • the torsional vibration damper 12 can preferably be arranged axially between the internal combustion engine 2 and the first electric machine 4 or the second electric machine 5 .
  • the second electric machine 5 can be arranged axially between the first electric machine 4 and the internal combustion engine 2 or the torsional vibration damper 12 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

L'invention concerne une transmission hybride (1) pour un véhicule hybride, comprenant une première chaîne cinématique de couple qui comprend un arbre d'entrée (3) pouvant être relié à un moteur à combustion interne (2) ainsi qu'une première machine électrique (4) reliée en transmission de couple à l'arbre d'entrée (3), comprenant en outre une seconde chaîne cinématique de couple qui comprend une seconde machine électrique (5), et comprenant un arbre de sortie (6) qui peut être ou est relié par transmission de couple à la première chaîne cinématique de couple et/ou à la seconde chaîne cinématique de couple, la première machine électrique (4) et/ou la seconde machine électrique (5) étant des machines à flux axial. L'invention concerne en outre une chaîne cinématique (16) pour un véhicule hybride, comprenant une telle transmission hybride (1) et un moteur à combustion interne (2) qui est relié en transmission de couple à l'arbre d'entrée (3) de la transmission hybride (1).
PCT/DE2022/100241 2021-05-03 2022-03-29 Transmission hybride et chaîne cinématique à transmission WO2022233356A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102021111348.2 2021-05-03
DE102021111348 2021-05-03
DE102022106550.2 2022-03-21
DE102022106550.2A DE102022106550A1 (de) 2021-05-03 2022-03-21 Hybridgetriebe sowie Antriebsstrang mit Hybridgetriebe

Publications (1)

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WO2022233356A1 true WO2022233356A1 (fr) 2022-11-10

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6762523B1 (en) * 1999-08-11 2004-07-13 The Swatch Group Management Services Ag Continuously variable electromagnetic transmission
WO2007017719A2 (fr) * 2005-08-05 2007-02-15 Bordini Engineering Srl Systeme de traction hybride
US20160218584A1 (en) 2015-01-28 2016-07-28 Honda Motor Co., Ltd. Integrated system
DE112015006071T5 (de) 2015-01-28 2017-10-12 Honda Motor Co., Ltd. Hybridfahrzeugantriebssystem
WO2019101264A1 (fr) 2017-11-23 2019-05-31 Schaeffler Technologies AG & Co. KG Chaîne cinématique hybride ayant deux machines électriques et un moteur à combustion interne
DE102017130494A1 (de) * 2017-12-19 2019-06-19 Schaeffler Technologies AG & Co. KG Hybrid-Antriebsstrang
WO2019242798A1 (fr) 2018-06-20 2019-12-26 Schaeffler Technologies AG & Co. KG Ensemble d'entrainement et dispositif d'entrainement
GB2580920A (en) * 2019-01-29 2020-08-05 Saietta Group Ltd Axial flux electrical machine and ancillary components
DE102019122314A1 (de) 2019-08-20 2021-03-11 Schaeffler Technologies AG & Co. KG Scheibenläufermaschine für einen Kraftfahrzeugantrieb

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6762523B1 (en) * 1999-08-11 2004-07-13 The Swatch Group Management Services Ag Continuously variable electromagnetic transmission
WO2007017719A2 (fr) * 2005-08-05 2007-02-15 Bordini Engineering Srl Systeme de traction hybride
US20160218584A1 (en) 2015-01-28 2016-07-28 Honda Motor Co., Ltd. Integrated system
DE112015006071T5 (de) 2015-01-28 2017-10-12 Honda Motor Co., Ltd. Hybridfahrzeugantriebssystem
WO2019101264A1 (fr) 2017-11-23 2019-05-31 Schaeffler Technologies AG & Co. KG Chaîne cinématique hybride ayant deux machines électriques et un moteur à combustion interne
DE102017130494A1 (de) * 2017-12-19 2019-06-19 Schaeffler Technologies AG & Co. KG Hybrid-Antriebsstrang
WO2019242798A1 (fr) 2018-06-20 2019-12-26 Schaeffler Technologies AG & Co. KG Ensemble d'entrainement et dispositif d'entrainement
GB2580920A (en) * 2019-01-29 2020-08-05 Saietta Group Ltd Axial flux electrical machine and ancillary components
DE102019122314A1 (de) 2019-08-20 2021-03-11 Schaeffler Technologies AG & Co. KG Scheibenläufermaschine für einen Kraftfahrzeugantrieb

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