WO2012055527A1 - Unité de transmission et unité électrique complémentaire - Google Patents

Unité de transmission et unité électrique complémentaire Download PDF

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Publication number
WO2012055527A1
WO2012055527A1 PCT/EP2011/005350 EP2011005350W WO2012055527A1 WO 2012055527 A1 WO2012055527 A1 WO 2012055527A1 EP 2011005350 W EP2011005350 W EP 2011005350W WO 2012055527 A1 WO2012055527 A1 WO 2012055527A1
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WO
WIPO (PCT)
Prior art keywords
unit
gear
transmission
electric machine
planetary gear
Prior art date
Application number
PCT/EP2011/005350
Other languages
German (de)
English (en)
Inventor
Markus Bichler
Daniel Prix
Rene Scheucher
Original Assignee
Magna Powertrain 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
Application filed by Magna Powertrain Ag & Co Kg filed Critical Magna Powertrain Ag & Co Kg
Priority to DE112011103566.7T priority Critical patent/DE112011103566B4/de
Publication of WO2012055527A1 publication Critical patent/WO2012055527A1/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
    • B60K6/445—Differential gearing distribution type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
    • F16H3/728—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path with means to change ratio in the mechanical gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
    • F16H2037/0866—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
    • F16H2037/0873—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft with switching, e.g. to change ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0043—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising four forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
    • 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 transmission unit for a motor vehicle, with an input element and a change gear, wherein the change gear has at least a first transmission branch, a second transmission branch and a common output element.
  • the input element of the transmission unit is typically drive-connected to an internal combustion engine.
  • the output element of the transmission is usually drivingly connected to a drive train of the motor vehicle, for example with a differential gear of the front axle or the rear axle. If a drive torque introduced via the input element is alternately guided via the first transmission branch and the second transmission branch as a result of a respective gear change within the transmission, such a transmission unit allows switching substantially free of traction interruption. If the two transmission branches for this purpose a respective friction clutch is assigned, such transmission units are known as dual-clutch transmission.
  • the invention further relates to an electrical supplementary unit for a change gear of a motor vehicle, wherein the change gear has a first transmission branch, a second transmission branch and a common output element.
  • a gear unit with the features of claim 1, and in particular by the fact that the gear unit further comprises an at least three-membered planetary gear, a first electric machine and a second electric machine, wherein a first member of the planetary gear with the input element of the gear unit is drive-connected, a second member of the planetary gear is drivingly connected to the first electric machine and the first transmission branch, and a third member of the planetary gear is drivingly connected to the second electric machine and the second transmission branch.
  • the transmission unit forms an electrical dual transmission (“EDT”).
  • EDT electrical dual transmission
  • the planetary gear serves as a summing and / or branching gear to selectively guide the input via the input dementia and / or by the two electric motors drive torque to one or both of the two transmission branches of the transmission.
  • EVT electrical variable transmission
  • the two electric machines also allow support of the drive, ie they allow the introduction of a drive torque in addition to or as an alternative to the drive torque of a coupled to the input element internal combustion engine ("Boosf" function or purely electric driving in a "full hybrid”). If the electrical machines are designed as motor generators, the energy is also recovered possible (recuperation by regenerative braking).
  • a transmission unit is further characterized by a simple structure, since in addition to a separating clutch on the input element no friction clutches are required.
  • mechanical synchronizers can be dispensed with, ie simple jaw clutches can be used.
  • the first electric machine with a countershaft of the first transmission branch rotatably connected
  • the second electric machine is rotatably connected to a countershaft of the second transmission branch.
  • Countershafts preferably arranged axially parallel to each other and also axially parallel to an output shaft of the transmission, which drives the common output member.
  • first transmission branch has a first countershaft and the second transmission branch has a second countershaft, wherein the two
  • Countershafts are arranged coaxially with each other and axially parallel to an output shaft of the transmission, which drives the common output member.
  • the first electric machine can in this case be rotatably connected to the first countershaft of the first transmission branch or drive connected via a first gear ratio
  • the second electric machine can be rotatably connected to the second countershaft of the second transmission branch or drive connected via a second gear ratio.
  • the first member of the planetary gear has a ring gear
  • the second member of the planetary gear has a planet carrier with at least one planetary gear
  • the third member of the planetary gear has a sun gear
  • the at least one planet gear meshes with the ring gear and meshes with the sun gear or is rotationally coupled (in particular via another planetary gear).
  • an electric supplementary unit for a change gear transmission with the features of claim 6, and in particular in that the supplementary unit comprises an input element, an at least three-membered planetary gear, a first electric machine and a second electric machine, wherein a a first member of the planetary gear is drivingly connected to the input element of the supplementary unit, a second member of the planetary gear is drivingly connected to the first electric machine and a first connection element of the supplementary unit, and a third member of the planetary gear with the second electric machine and a second connection element of the supplementary unit is drive connected.
  • Such a supplementary unit allows electrification of the transmission of a conventional dual-clutch transmission.
  • the first connection element and the second connection element of the supplementary unit with the first transmission branch and the second transmission branch of the transmission are drivingly connected (in particular rotationally fixed coupled).
  • the connection elements may be provided at a housing interface of the supplementary unit or within the supplementary unit, or the connection elements protrude, for example as a shaft end of the supplementary unit out.
  • a modular system in which a change gear subsystem of a dual-clutch transmission is optionally combined with said electrical supplementary unit or with a conventional, mechanical double clutch unit.
  • a particularly simple structure results in this case when the first connection element and the second connection element of the supplementary unit are rotatable coaxially with each other, for a coaxial arrangement of the two transmission branches of the associated transmission.
  • the invention also relates to a transmission modular system for a motor vehicle.
  • the modular system comprises at least one electrical supplementary unit of the type described, a double clutch unit and a change gear, which has a first transmission branch, a second transmission branch and a common output element.
  • the dual-clutch unit has an input element and two friction clutches, via which the input element can be selectively connected to a first connection element or to a second connection element of the dual clutch unit.
  • the electrical supplementary unit or the dual clutch unit is optionally coupled to the change gear, wherein the first connection element of the electrical supplementary unit or the dual clutch unit is drivingly connected to the first transmission branch of the transmission and the second connection element of the electrical supplementary unit or the Double clutch unit is drivingly connected to the second transmission branch.
  • Fig. 1 shows schematically the structure of a transmission unit according to a first embodiment.
  • Fig. 2 to 7 show schematically the structure of a transmission unit according to a respective further embodiment, wherein additionally a modular structure (supplementary unit and change gear) is shown.
  • the transmission unit shown in Fig. 1 has an input member 11 in the form of an input shaft to which a separating clutch 13 is provided.
  • the input member 11 is drivingly connected to a crankshaft of an internal combustion engine 15.
  • the gear unit further has a change gear 17, ie a gear with several discrete gear stages (gear ratios).
  • the change gear 17 comprises a first transmission branch 19 with a first countershaft 21 for the odd gear ratios (1st and 3rd), and a second transmission branch 23 with a second countershaft 25 for the even gear stages (2nd and 4th).
  • the change gear 17 further includes a common output shaft 27 which is selectively coupled to the countershafts 21, 25 selectively according to the different gear ratios.
  • the output shaft 27 drives an output member 29 of the transmission 17 in the form of a gear, wherein the output member 29 is in turn drivingly connected to a differential gear 31.
  • the first countershaft 21, the second countershaft 25 and the output shaft 27 are arranged axially parallel to each other in the embodiment shown in FIG.
  • the transmission unit comprises a three-membered planetary gear 33, having the following structure:
  • a first member of the planetary gear 33 includes a ring gear 35 which is rotatably connected to the input member 11.
  • a second member of the planetary gear 33 comprises a planet carrier 37, on which a plurality of first planetary gears 39 and a plurality of second planet gears 41 are rotatably mounted.
  • the planet carrier 37 is drive-connected via a first spur gear stage 43 to the first countershaft 21.
  • a third member of the planetary gear 33 comprises a sun gear 45, which is drive-connected via a second spur gear 47 to the second countershaft 25.
  • the first planetary gears 39 mesh with the ring gear 35 and with a respective second planetary gear 41.
  • the second planet gears 41 mesh with the sun gear 45.
  • Such a double planetary gear arrangement achieves a rotational direction adjustment with respect to the two countershafts 21 and 25.
  • the planetary gear 33 is preferably designed such that an introduced via the input member 11 torque is distributed in equal proportions to the planet carrier 37 and the sun gear 45.
  • a first electric machine 51 is rotatably connected to the first countershaft 21, and a second electric machine 53 is rotatably connected to the second countershaft 25.
  • the spur gear stages 43 and 47 form a first gear stage or a second gear stage via which the first electric machine 51 and the second electric machine 53 are drive-connected to the planet carrier 37 and to the sun gear 45, respectively.
  • the first electric machine 51 and / or the second electric machine 53 can supply a drive torque to the relevant transmission branch 19 or 23 in addition to the drive torque of the internal combustion engine 15.
  • one or both of the two electric machines 51, 53 provides a purely electric drive of the relevant motor vehicle, while the internal combustion engine 15 is decoupled from the drive train by opening the separating clutch 13. If the two electrical machines 51, 53 are designed as motor-generators, kinetic energy can be recovered as electrical energy by regenerative braking (recuperation). As a result, in particular the power losses arising in the case of conventional dual-clutch transmissions (with friction clutches) are reduced, and only a single separating clutch 13 is required.
  • FIGS. 2 to 7 show further embodiments of a respective gear unit, wherein similar elements as in the first embodiment shown in FIG. 1 are identified by the same reference numerals.
  • the embodiments according to FIGS. 2 to 7 relate to an electrical supplementary unit which forms a gear unit together with a change gear.
  • a difference from the first embodiment according to FIG. 1 is that the two
  • Countershafts 21, 25 of the gearbox 17 are arranged coaxially with each other and axially parallel to the output shaft 27.
  • the first electric machine 51 and the second electric machine 53 are arranged eccentrically to a central axis A of the planetary gear 33, which corresponds to the rotation axis of the input member 11 and the rotation axis of the sun gear 45. Accordingly, the first electric machine 51 and the second electric machine 53 are not rotatably connected to the respective countershaft 21 and 25, respectively, but a respective drive-effective coupling via a third spur gear 43 'and a second spur gear 47 is provided.
  • the spur gear stages 43 'and 47 constitute transmission stages which, depending on the selected transmission ratio, permit the use of fast-rotating, small-sized electrical machines 51, 53, in particular when a high transmission takes place at a slow speed.
  • the coaxial arrangement of the two countershafts 21, 25 is made possible in the embodiment according to FIG. 2 in that the planet carrier 37 is coupled to the first countershaft 21 via the first spur gear stage 43 and the third spur gear stage 43 ', wherein the first spur gear stage 43 and the third spur gear 43 'with respect to the central axis A axially offset from one another.
  • the second spur gear stage 47 can thus be arranged between the first spur gear stage 43 and the third spur gear stage 43 '.
  • the gear ratio of the first spur gear 43 and the gear ratio of the third spur gear 43 ' are preferably selected inversely to each other, ie these two spur gears 43, 43' cause a total of no speed difference between the planet carrier 37 and the first countershaft 21.
  • Another difference from the first embodiment according to Fig. 1 is that the arrangement of input member 11 (including separating clutch 13), planetary gear 33, the electric machines 51, 53, and the spur gears 43, 43 ', 47 forms an electrical supplementary unit 61, which is for coupling with the change gear 17th is provided to form a dual-clutch electric transmission according to a modular system.
  • the electrical supplementary unit 61 on the input side has a connecting element 63 for a rotationally fixed coupling with the crankshaft of the internal combustion engine 15, wherein the connecting element 63 is formed for example by a spline portion of the input part of the separating clutch 13.
  • the electrical supplementary unit 61 has a first connecting element 65, which allows a rotationally fixed coupling with the first countershaft 21, and a second connecting element 67, which enables a rotationally fixed coupling with the second countershaft 25.
  • the first connection element 65 and the second connection element 67 are arranged coaxially with each other. net and, for example, designed as a respective spline section.
  • Such an electrical supplementary unit 61 is particularly suitable for supplementing the change gear 17 of a conventional dual-clutch transmission.
  • FIG. 3 shows a third embodiment of a gear unit in which the electrical supplementary unit 61 is similar to that of the second embodiment according to FIG. 2.
  • the two electric machines 51, 52 are arranged eccentrically with respect to the central axis A, whereby an axially shorter size can be realized.
  • the electrical supplementary unit 61 additionally comprises a torsional vibration damper 14 connected upstream of the separating clutch 13.
  • the sun gear 45 of the planetary gear 33 is hollow and surrounds a central shaft 69.
  • the planet carrier 37 is rotatably connected to the input member 11 and the clutch 13 facing side of the planetary gear 33 with the central shaft 69.
  • the first electric machine 51 is drive-connected to the planet carrier 37 on a side of the planetary gear 33 opposite to the input element 11 (ie, on the side facing the change gear 17).
  • the sun gear 45 of the planetary gear 33 drivingly connected to the second electric machine 53 is rotatably connected to a hollow shaft 71 which surrounds the central shaft 69.
  • the central shaft 69 is rotatably connected via the first drive element 65 with the first countershaft 21 of the transmission 17, and the hollow shaft 71 is rotatably connected via the second connection element 67 with the second countershaft 25.
  • the first connection element 65 and the second connection element 67 are arranged coaxially with each other, as in the second embodiment according to FIG. 2, whereby the electrical supplementary unit 61 is particularly well suited to complement the change gear 17 of a dual-clutch transmission with coaxial
  • Countershafts 21, 25 is suitable.
  • the change gear 17 shown by way of example in FIG. 3 comprises five forward gear stages.
  • the first spur gear stage 43 and the second spur gear stage 47 each have a threefold configuration, i.
  • the arrangement of the electric machines 51, 53 radially outside of the planetary gear 33 designed simpler, and it can be realized higher gear ratios, especially in order to use particularly high-revving electric machines 51, 53 can.
  • the electric supplementary unit 61 and the change gear 17 may be separate, respectively preassembled subsystems, which are fastened to each other to jointly form a transmission unit for a motor vehicle.
  • the electric supplementary unit 61 can also be used as an alternative to an alternatively provided double clutch unit (not shown), which typically has an input element and two friction clutches via which the input element optionally has a first connection element or a second connection element of the dual clutch unit is connected to the drive.
  • the change gear 17, the electric supplementary unit 61 and the said dual clutch unit form a gearbox modular system to form from the same change gear 17 either an electric or a mechanical dual-clutch transmission (as in the second embodiment of FIG. 2).
  • Fig. 4 shows a fourth embodiment of a transmission unit, which is composed of a change gear 17 and an electric supplementary unit 61.
  • the two electric machines 51, 53 are arranged coaxially with each other and coaxially with the central axis A of the planetary gear 33.
  • the first electric machine 51 is rotatably connected to the planetary carrier 37 and the associated central shaft 69, wherein the planet carrier 37 is guided by the planetary gear 33 starting from the side facing the change gear 17 and at the side of the planetary gear 33 facing the input element 11 the central shaft 69 is connected.
  • the second electric machine 53 is connected directly to the hollow shaft 71 in a rotationally fixed manner and connected thereto in rotation with the sun gear 45.
  • FIG. 4 shows a fifth embodiment of a transmission unit, which essentially corresponds to the second embodiment according to FIG. 2.
  • a third spur gear stage 43 ' is also provided here, whose input element is arranged coaxially, but axially offset relative to the output element of the first spur gear stage 43, and is non-rotatably connected thereto.
  • the output element of the third spur gear stage 43 ' is arranged coaxially to the central axis A of the planetary gear 33 and rotatably connected to the first connection element 65.
  • the planetary carrier 37 of the planetary gear via the first spur gear 43 and the third spur gear 43 'is drivingly connected to the first output member 65.
  • the change gear 17 has here, for example, five forward gear stages.
  • Reverse gear are executed (see Fig. 7 with Fig. 1 to 6). If no mechanical reverse gear is provided in the change gear 17, the reversing takes place either via one or both of the electric machines 51, 53 (EMI or EM2 or EM1 + EM2).
  • FIG. 6 shows a sixth embodiment of a transmission unit, which substantially corresponds to the first embodiment according to FIG. 1.
  • the gear unit is here divided into a change gear 70 and an electrical supplementary unit 61, which form two separate pre-assembled subsystems.
  • the change gear 17 has here, for example, five forward gear stages.
  • FIG. 7 shows a seventh embodiment of a transmission unit which essentially corresponds to the third embodiment according to FIG. 3.
  • the change gear 17 here has a different structure. It is sits in addition to the first and second countershaft 21, 25 and the output shaft 27 more countershaft and output shafts.
  • the change gear 17 has six forward gear ratios. Furthermore, a reverse gear is shown.
  • the planetary gear 33 is preferably designed such that the drive torque introduced via the respective input element 11 is distributed in equal proportions (ie in each case to 50%) to the planet carrier 37 and the sun gear 45 becomes.
  • the disconnect clutch 13 and the torsional vibration damper 14 are not necessarily part of the electrical supplementing unit 61, ie one or both of these components may also be provided separately.
  • the electric machines 51, 53 may be formed as a motor generator.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Structure Of Transmissions (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

La présente invention concerne une unité de transmission destinée à un véhicule à moteur, présentant un élément d'entrée (11) et une boîte de vitesses (17) qui présente une première branche de transmission (19), une deuxième branche de transmission (23) et un élément de sortie (29) commun. L'unité de transmission comprend également un engrenage planétaire (33) à au moins trois éléments, un premier moteur électrique (51) et un deuxième moteur électrique (53). Un premier élément (35) de l'engrenage planétaire (33) est relié en entraînement à l'élément d'entrée (11) de l'unité de transmission. Un deuxième élément (37) de l'engrenage planétaire (33) est relié en entraînement au premier moteur électrique (51) et à la première branche de transmission (19). Un troisième élément (45) de l'engrenage planétaire (33) est relié en entraînement au deuxième moteur électrique (53) et à la deuxième branche de transmission (23). Dans un mode de réalisation avantageux, une unité électrique complémentaire (61) peut être couplée à une boîte de vitesses (17) pour former une unité de transmission de ce type.
PCT/EP2011/005350 2010-10-25 2011-10-24 Unité de transmission et unité électrique complémentaire WO2012055527A1 (fr)

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Cited By (20)

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WO2014158078A1 (fr) * 2013-03-27 2014-10-02 Scania Cv Ab Groupe motopropulseur hybride comportant une boîte de vitesses et procédé de commande d'un tel groupe motopropulseur hybride
KR20160133561A (ko) * 2014-03-20 2016-11-22 스카니아 씨브이 악티에볼라그 하이브리드 드라이브 라인의 연소 엔진 시동 방법
KR20160135787A (ko) * 2014-03-20 2016-11-28 스카니아 씨브이 악티에볼라그 하이브리드 드라이브 라인의 연소 엔진 시동 방법
DE102016108552A1 (de) * 2016-05-09 2017-11-09 Hofer-Pdc Gmbh Hybridantriebsstrang mit leistungsverzweigendem Getriebe und Schaltverfahren
EP3120009A4 (fr) * 2014-03-20 2017-11-29 Scania CV AB Procédé pour démarrer un moteur à combustion dans une ligne de transmission hybride
US9944273B2 (en) 2014-03-20 2018-04-17 Scania Cv Ab Method for controlling a hybrid driveline in order to achieve gear change without interruption of torque
US9956952B2 (en) 2014-03-20 2018-05-01 Scania Cv Ab Method for controlling a hybrid driveline in order to optimize torque from a combustion engine arranged at the driveline
US10046758B2 (en) 2014-03-20 2018-08-14 Scania Cv Ab Method for starting a combustion engine in a hybrid driveline
US10046754B2 (en) 2014-03-20 2018-08-14 Scania Cv Ab Method for controlling a hybrid vehicle driveline
US10071728B2 (en) 2014-03-20 2018-09-11 Scania Cv Ab Method for controlling a hybrid vehicle driveline
US10077044B2 (en) 2014-03-20 2018-09-18 Scania Cv Ab Method for controlling a hybrid driveline for reducing electrical losses
US10207701B2 (en) 2014-03-20 2019-02-19 Scania Cv Ab Method for controlling a driveline in order to optimize fuel consumption
CN109505939A (zh) * 2018-12-28 2019-03-22 东风商用车有限公司 一种混合动力变速箱
US10315642B2 (en) 2014-03-20 2019-06-11 Scania Cv Ab Method for takeoff of a vehicle with a hybrid driveline
US10479350B2 (en) 2014-03-20 2019-11-19 Scania Cv Ab Method for controlling a hybrid vehicle driveline
CN113147354A (zh) * 2021-05-07 2021-07-23 一汽解放汽车有限公司 混合动力系统
US11155265B2 (en) 2014-03-20 2021-10-26 Scania Cv Ab Method for takeoff of a vehicle comprising a hybrid driveline
US11198427B2 (en) 2014-03-20 2021-12-14 Scania CVAB Method for controlling a hybrid driveline
CN114312296A (zh) * 2022-01-10 2022-04-12 中国重汽集团济南动力有限公司 一种纯电动车动力传动系统
US11827091B2 (en) 2018-07-04 2023-11-28 Byd Company Limited Vehicle transmission apparatus and vehicle

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KR101718456B1 (ko) 2013-03-27 2017-03-21 스카니아 씨브이 악티에볼라그 하이브리드 구동라인, 그러한 하이브리드 구동라인을 구비한 차량, 그러한 하이브리드 구동라인을 제어하는 방법, 그러한 하이브리드 구동라인을 제어하는 컴퓨터 프로그램 및 프로그램 코드를 포함하는 컴퓨터 프로그램 제품
KR20150135491A (ko) * 2013-03-27 2015-12-02 스카니아 씨브이 악티에볼라그 하이브리드 구동라인, 그러한 하이브리드 구동라인을 구비한 차량, 그러한 하이브리드 구동라인을 제어하는 방법, 그러한 하이브리드 구동라인을 제어하는 컴퓨터 프로그램 및 프로그램 코드를 포함하는 컴퓨터 프로그램 제품
WO2014158078A1 (fr) * 2013-03-27 2014-10-02 Scania Cv Ab Groupe motopropulseur hybride comportant une boîte de vitesses et procédé de commande d'un tel groupe motopropulseur hybride
RU2628618C2 (ru) * 2013-03-27 2017-08-21 Сканиа Св Аб Гибридный привод, транспортное средство с таким гибридным приводом, способ управления таким гибридным приводом
US10384671B2 (en) 2014-03-20 2019-08-20 Scania Cv Ab Method for starting a combustion engine in a hybrid driveline
KR101912402B1 (ko) 2014-03-20 2018-10-26 스카니아 씨브이 악티에볼라그 하이브리드 드라이브 라인의 연소 엔진 시동 방법
US11198427B2 (en) 2014-03-20 2021-12-14 Scania CVAB Method for controlling a hybrid driveline
US11155265B2 (en) 2014-03-20 2021-10-26 Scania Cv Ab Method for takeoff of a vehicle comprising a hybrid driveline
US10661783B2 (en) 2014-03-20 2020-05-26 Scania Cv Ab Method for starting a combustion engine in a hybrid driveline
EP3120011A4 (fr) * 2014-03-20 2017-11-29 Scania CV AB Procédé de démarrage d'un moteur à combustion dans une chaîne cinématique hybride
EP3120010A4 (fr) * 2014-03-20 2017-11-29 Scania CV AB Procédé de démarrage d'un moteur à combustion dans une chaîne cinématique hybride
EP3120009A4 (fr) * 2014-03-20 2017-11-29 Scania CV AB Procédé pour démarrer un moteur à combustion dans une ligne de transmission hybride
US9944273B2 (en) 2014-03-20 2018-04-17 Scania Cv Ab Method for controlling a hybrid driveline in order to achieve gear change without interruption of torque
US9956952B2 (en) 2014-03-20 2018-05-01 Scania Cv Ab Method for controlling a hybrid driveline in order to optimize torque from a combustion engine arranged at the driveline
US10046758B2 (en) 2014-03-20 2018-08-14 Scania Cv Ab Method for starting a combustion engine in a hybrid driveline
US10046754B2 (en) 2014-03-20 2018-08-14 Scania Cv Ab Method for controlling a hybrid vehicle driveline
KR101890381B1 (ko) 2014-03-20 2018-08-21 스카니아 씨브이 악티에볼라그 하이브리드 드라이브 라인의 연소 엔진 시동 방법
US10071728B2 (en) 2014-03-20 2018-09-11 Scania Cv Ab Method for controlling a hybrid vehicle driveline
US10077044B2 (en) 2014-03-20 2018-09-18 Scania Cv Ab Method for controlling a hybrid driveline for reducing electrical losses
KR20160135787A (ko) * 2014-03-20 2016-11-28 스카니아 씨브이 악티에볼라그 하이브리드 드라이브 라인의 연소 엔진 시동 방법
US10207701B2 (en) 2014-03-20 2019-02-19 Scania Cv Ab Method for controlling a driveline in order to optimize fuel consumption
US10479350B2 (en) 2014-03-20 2019-11-19 Scania Cv Ab Method for controlling a hybrid vehicle driveline
US10293806B2 (en) 2014-03-20 2019-05-21 Scania Cv Ab Method for starting a combustion engine in a hybrid driveline
US10315642B2 (en) 2014-03-20 2019-06-11 Scania Cv Ab Method for takeoff of a vehicle with a hybrid driveline
KR20160133561A (ko) * 2014-03-20 2016-11-22 스카니아 씨브이 악티에볼라그 하이브리드 드라이브 라인의 연소 엔진 시동 방법
EP3244097A1 (fr) 2016-05-09 2017-11-15 hofer-pdc GmbH Groupe motopropulseur hybride comprenant une transmission à changement de rapports sous charge et procédé de commutation d'une telle transmission dans un groupe motopropulseur hybride
EP3244096A1 (fr) 2016-05-09 2017-11-15 hofer-pdc GmbH Transmission comprenant un accouplement à crabots, notamment pour un groupe motopropulseur hybride, et procédé de fonctionnement
DE102016108552A1 (de) * 2016-05-09 2017-11-09 Hofer-Pdc Gmbh Hybridantriebsstrang mit leistungsverzweigendem Getriebe und Schaltverfahren
DE102016108552B4 (de) 2016-05-09 2023-09-14 Hofer Powertrain Innovation Gmbh Hybridantriebsstrang mit leistungsverzweigendem Getriebe, einer koaxial zwei Wellen umfassenden Zentralwelle und einem mehrere Schaltstellungen aufweisenden Kraftflussverbinder sowie dazugehöriges Schaltverfahren, das unter Last ausführbar ist
US11827091B2 (en) 2018-07-04 2023-11-28 Byd Company Limited Vehicle transmission apparatus and vehicle
CN109505939A (zh) * 2018-12-28 2019-03-22 东风商用车有限公司 一种混合动力变速箱
CN109505939B (zh) * 2018-12-28 2024-03-19 东风商用车有限公司 一种混合动力变速箱
CN113147354A (zh) * 2021-05-07 2021-07-23 一汽解放汽车有限公司 混合动力系统
CN114312296A (zh) * 2022-01-10 2022-04-12 中国重汽集团济南动力有限公司 一种纯电动车动力传动系统
CN114312296B (zh) * 2022-01-10 2024-04-12 中国重汽集团济南动力有限公司 一种纯电动车动力传动系统

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