WO2019141561A1 - Boîte de vitesses pour véhicule automobile, chaîne cinématique de véhicule automobile et procédé permettant de les faire fonctionner - Google Patents

Boîte de vitesses pour véhicule automobile, chaîne cinématique de véhicule automobile et procédé permettant de les faire fonctionner Download PDF

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Publication number
WO2019141561A1
WO2019141561A1 PCT/EP2019/050431 EP2019050431W WO2019141561A1 WO 2019141561 A1 WO2019141561 A1 WO 2019141561A1 EP 2019050431 W EP2019050431 W EP 2019050431W WO 2019141561 A1 WO2019141561 A1 WO 2019141561A1
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WO
WIPO (PCT)
Prior art keywords
planetary gear
gear set
transmission
switching element
drive shaft
Prior art date
Application number
PCT/EP2019/050431
Other languages
German (de)
English (en)
Inventor
Niko Zwerger
Philipp Notheis
Original Assignee
Zf Friedrichshafen Ag
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Filing date
Publication date
Application filed by Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2019141561A1 publication Critical patent/WO2019141561A1/fr

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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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K2006/381—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches characterized by driveline brakes
    • 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
    • B60K2006/4816—Electric machine connected or connectable to gearbox internal shaft
    • 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
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • 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 for a motor vehicle, comprising a first drive shaft, a second drive shaft, an output shaft and a planetary gear set, which is composed of a first element, a second element and a third element in the form of a sun gear, a planetary ridge and a ring gear wherein a first switching element and a second switching element are provided by the selective actuation different power flow guides of at least one of the drive shafts to the output shaft are represented, and wherein the first element of the first planetary gear set via the first switching element can be fixed, whereas the second element of the planetary gear rotatably connected to the output shaft is in communication and the third element of the planetary gear set rotatably connected to the first drive shaft. Furthermore, the invention relates to a motor vehicle drive train with an aforementioned transmission and a method for operating the motor vehicle drive train.
  • gearboxes which have in addition to an output shaft a plurality of drive shafts, via a set of wheels of the respective transmission then a combination of introduced via the drive shafts drive movements is possible.
  • at least one electric machine is provided, wherein the internal combustion engine is connected or connectable to one of the drive shafts of the transmission, while another drive shaft of the transmission is in communication with the at least one electric machine.
  • EP 2 062 770 A1 discloses a motor vehicle drive train of a hybrid vehicle in which an operation of an internal combustion engine can be superimposed with an operation of two electric machines via a transmission.
  • the transmission comprises a planetary gear set which consists of the elements nenrad, planetary gear and ring gear composed, the ring gear can be fixed in a variant of a first switching element and rotatably connected by a second switching element with a spur gear of a spur gear of the transmission.
  • the spur gear is then meshed with a further spur gear of this spur gear, which is rotatably provided on a first drive shaft of the transmission.
  • the first drive shaft while the internal combustion engine and also a first, working as a generator electric machine is connected, the latter being in operative connection with a second, working as an electric motor electric machine.
  • the second electric machine is rotatably connected to a second drive shaft of the transmission, said second drive shaft also carries the sun gear of the planetary gear set.
  • the planetary bridge of the planetary gear set is non-rotatably connected to the output shaft of the transmission.
  • a transmission comprises a first drive shaft, a second drive shaft, an output shaft and a planetary gear set, which is composed of a first element, a second element and a third element in the form of a sun gear, a planet web and a ring gear.
  • a first switching element and a second switching element are provided, can be represented by the selective actuation different power flow guides of at least one of the drive shafts to the output shaft.
  • the first element of the first planetary gear set via the first switching element be set, whereas the second element of the planetary gear set rotatably connected to the output shaft in connection and the third element of the planetary gear is rotatably connected to the first drive shaft.
  • a “shaft” is to be understood as a rotatable component of the transmission via which components connected thereto are connected to one another in a rotationally fixed manner or via which such a connection is produced upon actuation of a corresponding switching element.
  • the respective shaft can connect the components axially or radially or else both axially and radially.
  • the respective shaft can also be present as an intermediate piece, via which a respective component is connected radially, for example.
  • axial in the context of the invention, an orientation in the direction of a longitudinal central axis is meant, to which the planetary gear is arranged coaxially.
  • radial is then an orientation in the diameter direction of a shaft to understand, which lies on this longitudinal central axis.
  • an output of the transmission is provided at an axial end of the transmission opposite to a connection point of the second drive shaft.
  • a connection point of the output shaft is then designed coaxially to an attachment point of the second drive shaft at an axial end of the output shaft, so that a drive via the second drive shaft and an output of the transmission are placed at opposite axial ends of the transmission.
  • a gear designed in this way is suitable for use in a motor vehicle with a drive train aligned in the direction of travel of the motor vehicle.
  • the output shaft of the transmission but also have a toothing, via which the output shaft is then operatively connected in the motor vehicle drive train with an axially parallel to the output shaft arranged differential gear.
  • the toothing is preferably provided at a connection point of the output shaft, wherein this connection point of the output shaft preferably lies axially in the region of one end of the transmission, on which also one of the connections ELLg is provided to an upstream drive machine producing connection point of the second drive shaft.
  • This type of arrangement is particularly suitable for use in a motor vehicle with a transversely oriented to the direction of travel of the motor vehicle drive train.
  • the first drive shaft also has in particular a connection point, wherein this connection point of the first drive shaft preferably lies at the same axial end as the connection point of the second drive shaft.
  • the invention now includes the technical teaching that the first element of the planetary gear set is rotatably connected to the second drive shaft. Further, two of the elements of the planetary gear set can be rotatably connected to each other by means of the second switching element.
  • the first switching element is thus designed in the present case as a brake, which fixes the components connecting thereto upon actuation and prevents in the sequence of a rotational movement.
  • the second switching element is present as a clutch which, when actuated, optionally initially adjusts the components of the gearbox which are directly connected thereto in their rotational movements and subsequently connects them to one another in a torque-proof manner.
  • both switching elements are provided axially on one of the connection point of the second drive shaft facing side of the planetary, wherein in this case the second switching element is further preferably arranged axially between the planetary gear and the first switching element.
  • a respective rotationally fixed connection of the rotatable components of the transmission is realized according to the invention preferably via one or more intermediate waves, which may also be present as a short intermediate pieces in spatially dense position of the components.
  • the components which are permanently connected to one another in a rotationally fixed manner can each be present either as individual components which are connected to one another in a torque-proof manner or also in one piece.
  • the respective components and the possibly existing shaft are then formed by a common component, wherein this is especially realized just when the respective components are spatially close to each other in the transmission.
  • connection is likewise preferably realized via one or more intermediate shafts.
  • a setting is carried out in particular by non-rotatable connection with a non-rotatable component of the transmission, which is preferably a permanently stationary component, preferably a housing of the transmission, a part of such a housing or a rotatably connected thereto component.
  • a non-rotatable component of the transmission which is preferably a permanently stationary component, preferably a housing of the transmission, a part of such a housing or a rotatably connected thereto component.
  • a transmission according to the invention is characterized by a compact design, good gear efficiency and low losses. Furthermore, a simple assembly of the transmission is possible, since the planetary gear set can be used as a unit in a corresponding housing of the transmission.
  • the transmission according to the invention is in particular part of a motor vehicle drive train, wherein in this case preferably at the first drive shaft of the transmission Drive machine connected in the form of an electric machine and connected to the second drive shaft of the transmission, a prime mover in the form of an internal combustion engine or is connectable.
  • the two prime movers can be combined with each other under different operating modes and thus different driving functions of a motor vehicle can be realized.
  • the electric machine connected to the first drive shaft can be operated on the one hand as a generator and on the other hand as an electric motor.
  • At least five operating modes of the motor vehicle drive train can be realized, resulting in a first operating mode when driven by the electric machine and by closing the first switching element and thereby an electrical reverse drive can be realized by initiating a corresponding rotational movement via the electric machine.
  • the first switching element When the first switching element is closed, the first element of the planetary gear set and thus also the second drive shaft are fixed, so that even an internal combustion engine connected to the second drive shaft is stationary.
  • a second operating mode can then also be realized in the case of drive via the electric machine, wherein in this case a rotational movement opposite the rearward movement is introduced via the electric machine and an electric starting function can be represented as a result.
  • electric driving can be realized when driven by the electric machine and by closing the second switching element.
  • the planetary gear runs as a block, so that a rigid through drive from the first drive shaft and thus the working as an electric motor electric machine takes place on the output shaft.
  • This can be realized in block running the planetary gear set a good efficiency.
  • the electric machine however, operated as a generator, it can be realized in the context of braking recuperation of electrical energy.
  • combined driving can then be realized by driving both via the internal combustion engine and the electric machine, and the planetary gear set thereby merges the two drive powers to the output.
  • the planetary gear acts as a summation stage, via which the drive power applied via the internal combustion engine and the drive power applied via the electric motor operating as an electric motor are combined to form the output shaft.
  • the electric motor it would also be conceivable, at least temporarily, to operate the electric motor as a generator, so that part of the drive power represented by the internal combustion engine is branched off to the electric machine and used to generate electrical energy.
  • the invention can also be implemented as a further operating mode and an internal combustion engine starting function when driving on the internal combustion engine, for which purpose the second switching element is slipping to operate.
  • the second switching element then acts as a starting element.
  • an electric machine is provided whose rotor is non-rotatably connected to the first drive shaft.
  • a rotor of the electric machine is connected to the first drive shaft via at least one transmission stage, so that the rotor and the first drive shaft are coupled to one another via an intermediate ratio in the form of at least one transmission stage.
  • an electric machine is integrated with the transmission, which is in communication with the first drive shaft and via which the operating modes described above can be mitgestaltet.
  • the electric machine can in principle be either coaxial with the planetary gear set or off-axis arranged to this lying.
  • the rotor of the electric machine either directly rotatably connected to the first drive shaft or coupled via one or more intermediate gear ratios with this, the latter allows a cheaper design of the electric machine with higher speeds and lower torque.
  • the at least one translation stage can be designed as a spur gear and / or as a planetary stage. In a coaxial arrangement of the electric machine, this can also be arranged within the transmission that this is axially placed at the level of the first, designed as a brake switching element and radially inwardly to this or provided axially at the level of the second switching element and radially surrounding this. In both cases, the axial length of the transmission can be reduced.
  • the electric machine is provided offset in axial direction with respect to the planetary gear set, a coupling takes place via one or more intermediate gear ratios and / or a traction drive.
  • the one or more translation stages can also be realized in detail either as a spur gear or as a planetary stage.
  • a traction drive may be either a belt drive or a chain drive.
  • the second switching element connects on actuation of the first element and the third element of the planetary gear set. Alternatively, by closing the second shift member, the first member and the second member of the planetary gear set or, more alternatively, the second member and the third member of the planetary gear set rotate with each other. In all three aforementioned cases in each case a blocking of the planetary gear set is brought about.
  • the first element of the planetary gear set is the sun gear
  • the second element is a minus planetary gear set around the planetary land
  • the planetary gear set is a positive planetary gear set geared around the ring gear.
  • the first element of the planetary gear set in execution of the planetary gear set as a minus planetary gear set the ring gear and when the planetary gear set as a plus planetary gear set of the planet web.
  • the second element is in execution of the planetary gear set as minus planetary gear set as Planetensteg and in execution of the planetary gear set as positive planetary gear set as ring gear, while it is the sun gear at the third element of the planetary gear.
  • the planetary gear set can therefore be present in the context of the invention as a minus planetary gear set, which is composed in a manner known in principle to the person skilled in the art from the elements sun gear, planet web and ring gear.
  • the planetary web leads at least one, but preferably a plurality of planet gears, which mesh in detail with each of the sun gear, as well as the surrounding ring gear.
  • the planetary gear set but also be present in principle as a plus-planetary gear set, which also includes the elements sun gear, ring gear and planetary gear wherein the latter leads at least one Planetenradstand, in which the one planetary gear with the inner sun gear and the other planet gear meshing with the surrounding ring gear, and the planet gears mesh with each other.
  • a minus planetary gear set can be converted into a plus-planetary gear set, in which case compared to the design as a minus planetary gear set the Hohlrad- and the Planetensteganitati to swap with each other, and a Getrie istübera is to increase by one.
  • a plus planetary gear set could be replaced by a minus planetary gear set, if the connection of the elements of the transmission makes this possible.
  • the ring gear and the planet web connection would then also have to be exchanged with each other, as well as a transmission gear ratio reduced by one.
  • the first switching element and / or the second switching element is designed as a non-positive switching element.
  • the respective switching element is present in particular as a lamellae switching element, wherein the design as non-positive switching element has the advantage that a closing of the respective switching element can also be realized under load. In this respect, a change between the operating modes described above can also take place under load.
  • Execute switching elements as form-locking switching elements such as locking synchronizers or claw switching elements.
  • An embodiment as a form-locking switching elements has the advantage that in the open state of the respective switching element lower drag losses occur and thus the efficiency can be improved. But particularly preferably, both switching elements are available as non-positive switching elements.
  • a pump is connected to the first drive shaft.
  • the sun gear and the ring gear are axially supported against each other.
  • axial forces which occur in a planetary gear set with helical gears on ring gear and sun gear can be reliably absorbed.
  • the ring gear and the sun gear are supported on one another via at least one thrust bearing.
  • the drive shaft and / or the second drive shaft are each preceded on the drive side by at least one transmission stage.
  • the first drive shaft or the second drive shaft or both the first drive shaft and the second drive shaft can therefore be connected on the drive side with one or more upstream transmission stages, which realize a constant ratio to the respective drive shaft.
  • the output shaft may be connected on the output side with one or more gear ratios, via which a constant ratio of the output shaft is made in subsequent components in the motor vehicle drive train.
  • Fig. 1 is a schematic view of a motor vehicle drive train
  • Fig. 2 is a schematic representation of a transmission as may be used in the motor vehicle drive train in Fig. 1;
  • Fig. 3 is another view of the transmission of Fig. 2;
  • Fig. 4 is a schematic view of a transmission, as it is also in the
  • Fig. 5 is a schematic representation of a transmission, as it is also in the
  • FIG. 6 is a tabular representation of different operating modes of the motor vehicle drive train of FIG. 1 with a transmission according to FIG. 2 or FIG. 4 or FIG. 5;
  • FIG. 6 is a tabular representation of different operating modes of the motor vehicle drive train of FIG. 1 with a transmission according to FIG. 2 or FIG. 4 or FIG. 5;
  • FIG. 7 shows a diagram with speed ratios in the individual operating modes from FIG. 6 in the case of the transmission from FIG. 2;
  • FIG. 8 shows a diagram with speed ratios in the individual operating modes in the transmission according to FIG. 4 or 5.
  • FIG. 1 shows a schematic view of a motor vehicle drive train of a hybrid vehicle, wherein in the motor vehicle drive train an internal combustion engine VKM is connected to a transmission G via an intermediate torsional vibration damper TS.
  • the transmission G is the output side, a differential gear AG downstream, via which a drive power is distributed to drive wheels DW a drive axle of the motor vehicle.
  • the gear G and the torsional vibration damper TS are in a common housing of the Gear G arranged, in which then the differential gear AG can be integrated.
  • the internal combustion engine VKM, the torsional vibration damper TS, the gear G and also the differential gear AG are aligned in the direction of travel of the motor vehicle.
  • Fig. 2 shows a schematic representation of the transmission G according to a first embodiment of the invention.
  • the transmission G comprises a planetary gear P1 and an electric machine EM, which are arranged together in the housing of the transmission G.
  • the electric machine EM can be operated on the one hand as an electric motor and the other as a generator.
  • the planetary gear P1 is made up of a first element E1 1, a second element E21 and a third element E31 together, wherein it is the first element E1 1 of the planetary gear set P1 is a sun gear SO, while the second element E21 as the planetary gear PT and the third element E31 is provided as a ring gear HO.
  • At least one planet gear PR is rotatably mounted in the planetary gear PT, which meshes with both the radially inner sun gear SO and the radially surrounding ring gear HO.
  • the planetary gear PT but several planetary gears.
  • the planetary gear set P1 is thus designed as a minus planetary gear set, which in principle would also be feasible as a plus planetary gear set within the scope of the invention.
  • the planetary gear then leads at least one pair of planetary, of the planetary gears a planetary gear with the radially inner sun gear and a planet gear with the radially surrounding ring gear meshing, and the planet gears mesh with each other.
  • the third element E31 of the planetary gear P1 is non-rotatably connected to a first drive shaft GW1 of the transmission G, on which also a rotor of the electric machine (not shown in FIG. 2) EM is rotatably connected.
  • a pump P which in the present case is shown only schematically, is also operated, which for this purpose is likewise connected in a rotationally fixed manner to the first drive shaft GW1.
  • the first element E1 1 is non-rotatably connected to a second drive shaft GW2, at the end-side connection point GW2-A in the motor vehicle drive train of FIG. 1, a connection to the internal combustion engine VKM is made via the intermediate torsional vibration damper TS.
  • the second element E21 is rotatably connected to an output shaft GWA of the transmission G in connection, at the junction GWA-A, the connection to the following on the transmission G axle drive AG is made in the motor vehicle drive train.
  • the transmission G of FIG. 2 also has two switching elements A and B, which are each present as non-positive switching elements and are designed concretely as a lamellar switching elements.
  • the first switching element A is present as a brake, which sets the second drive shaft GW2 and thus also the first element E1 1 of the planetary gear set P1 on a non-rotatable component GG when actuated.
  • the non-rotatable component GG is in particular the gear housing or a part of the gear housing of the transmission G.
  • the second switching element B is present as a coupling which, in the closed state, rotatably connects the first element E1 1 and the third element E31 of the planetary gear set P1 and thereby causes a blocking of the planetary gear P1.
  • the blocking could also be achieved by the second switching element B, when actuated, connecting the first element E1 1 and the second element E21 or the second element E21 and the third element E31 in a torque-proof manner.
  • the first drive shaft GW1, the second drive shaft GW2, and also the output shaft GWA are arranged coaxially with each other, and the planetary gear set P1 is also placed coaxially with the drive shafts GW1 and GW2 and also with the output shaft GWA.
  • the electric machine EM is arranged coaxially with the planetary gear P1 and the waves GW1, GW2 and GWA.
  • FIG. 3 shows a further view of the transmission G from FIG.
  • the planetary gear set P1 is provided axially adjacent to the connection point GWA-A of the output shaft GWA and then axially first the second switching element B, then the Electric machine EM and finally the first switching element A in the direction of the junction GW2-A of the second drive shaft GW2 follow.
  • a rotor R of the electric machine EM is non-rotatably connected to the first drive shaft GW1, while a stator S of the electric machine EM is fixed to the non-rotatable component GG.
  • Fig. 3 is also shown that the sun gear SO and the ring gear HO of the planetary gear P1 via a - not shown in detail here - thrust bearing AL are supported against each other. Axial forces of the planetary gear P1 are thereby recorded via this thrust bearing AL, which occur due to the helical gears of the gears of the planetary gear set P1.
  • FIG. 4 shows a schematic view of a transmission G according to a second embodiment of the invention, as it can also be found in the motor vehicle powertrain in Fig. 1 application.
  • this embodiment corresponds largely to the variant of FIGS. 2 and 3, in contrast to now in the planetary P1, the first element E1 1 is formed by a ring gear HO of the planetary gear P1, while the third element E31 now sun gear SO of the planetary gear set P1 is present.
  • the second element E21 of the planetary gear set P1 is then still a planetary gear PT of the planetary P1, which at least one planetary gear rotatably mounted PR, which is in mesh with both the sun gear SO, and the ring gear HO.
  • the planetary gear set P1 is thus designed as a minus planetary gear set, with an embodiment as a plus planetary gear set also conceivable here. In this case, however, then would be the first element E1 1 of the planetary P1 as a planetary land and the second element E21 as To execute ring gear and a stand ratio of the planetary gear P1 to increase by one.
  • the electric machine EM is arranged axially essentially at the height of the first switching element A and radially inward to it.
  • a nested structure realized and thus the axial length of the transmission G can be reduced.
  • the embodiment possibility according to FIG. 4 otherwise corresponds to the variant according to FIGS. 2 and 3, so that reference is made to the description described here.
  • Fig. 5 shows a schematic view of a transmission G according to a third embodiment of the invention.
  • this embodiment can also be used in the motor vehicle drive train in Fig. 1, wherein the embodiment substantially corresponds to the previous variant of FIG. 4.
  • the electric machine EM is now provided axially between the connection point GWA-A of the output shaft GWA and the planetary gear P1, wherein the electric machine EM is arranged radially inwardly to the planetary gear PT.
  • the sun gear SO and the ring gear HO via an axial bearing AL are axially supported against each other, wherein the thrust bearing AL is not shown here.
  • the embodiment according to FIG. 5 corresponds to the variant according to FIG. 4, so that reference is made to the description described here.
  • FIG. 6 shows a tabular representation of different operating modes 1 to 6 of the motor vehicle drive train from FIG. 1, in which one of the gear G according to FIGS. 2 to 5 is provided.
  • the columns of the table in Fig. 6 is in each case marked with an X whether powered by the electric machine EM or the internal combustion engine VKM and whether the first switching element A and the second switching element B is in a closed state.
  • the first switching element A is closed so that, as a consequence, the second drive shaft GW2 and thus also the internal combustion engine VKM are fixed. At the same time it is driven via the electric machine EM, wherein the electric machine initiates a rotational movement, which has a reverse drive of the motor vehicle result. In this respect, in the first operating mode 1, an electric reverse drive is realized.
  • the first switching element A is closed, while a drive via the electric machine EM takes place.
  • a rotational movement is generated by the electric machine EM, which has a startup of the motor vehicle in the forward direction result. Accordingly, in the case of the second operating mode 2, an electrical starting function is shown.
  • From the second operating mode 2 is transferred to the third operating mode 3, by the first switching element A is opened and the second switching element B is closed, which entails a blocking of the planetary gear set P1.
  • the output rotational speed to the output shaft GWA can be increased above the planetary gear set P1 compared to the second operating mode 2, as can also be seen from the diagrams in FIGS. 7 and 8.
  • a recuperation of electrical energy also takes place during braking operations and during operation of the electric machine as a generator.
  • a fourth operating mode 4 is then simultaneously driven via the electric machine EM and the internal combustion engine VKM, in which case neither the first switching element A nor the second switching element B are closed.
  • the planetary gear set P1 then works as a summation stage, via which the input to the drive shafts GW1 and GW2 drive power to the output shaft GWA are added up.
  • the electric machine EM operates as a generator, in which case Case is a fed to the second drive shaft GW2 drive movement to the output shaft GWA and the first drive shaft GW1 is divided.
  • a purely internal combustion engine driving on the internal combustion engine VKM is driven by the internal combustion engine VKM and the planetary gear set P1 is blocked by closing the second switching element B. Also in this case, a generator operation of the electric machine EM would be conceivable to generate electrical energy.
  • a sixth operating mode 6 is conceivable, in which a start-up via the internal combustion engine VKM is realized.
  • the second switching element B is then slipping closed, i. the second switching element B works in this case as a starting element.

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

Abstract

L'invention concerne une boîte de vitesses (G) de véhicule automobile, comprenant un premier arbre d'entrée (GW1), un second arbre d'entrée (GW2), un arbre de sortie (GWA) et un train planétaire (P1) qui est composé d'un premier élément (E11), d'un deuxième élément (E21) et d'un troisième élément (E31) sous la forme d'un pignon planétaire (SO ; SO'), d'un porte-satellite (PT ; PT') et d'une couronne (HO ; HO'). L'actionnement d'un premier élément de changement de vitesse (A) et d'un second élément de changement de vitesse (B) permet d'obtenir différents guidages du flux de force d'au moins un des arbres d'entrée (GW1, GW2) vers l'arbre de sortie (GWA). Le premier élément (E11) du train planétaire (P1) peut en outre être immobilisé par le premier élément de changement de vitesse (A), tandis que le deuxième élément (E21) du train planétaire (P1) est relié bloqué en rotation à l'arbre de sortie (GWA) et le troisième élément (E31) du train planétaire (P1) est relié bloqué en rotation au premier arbre d'entrée (GW1). Selon l'invention, le premier élément (E11) du train planétaire (P1) est relié bloqué en rotation au second arbre d'entrée (GW2), deux des éléments (E11, E21, E31) du train planétaire (P1) pouvant en outre être mis en liaison bloqués en rotation au moyen du second élément de changement de vitesse (B).
PCT/EP2019/050431 2018-01-17 2019-01-09 Boîte de vitesses pour véhicule automobile, chaîne cinématique de véhicule automobile et procédé permettant de les faire fonctionner WO2019141561A1 (fr)

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DE102018200677.6A DE102018200677A1 (de) 2018-01-17 2018-01-17 Getriebe für ein Kraftfahrzeug

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WO2021185402A1 (fr) 2020-03-17 2021-09-23 Schaeffler Technologies AG & Co. KG Transmission hybride à combinaison frein-embrayage courte axialement et chaîne cinématique
DE102020109629A1 (de) 2020-04-07 2021-10-07 Schaeffler Technologies AG & Co. KG P3S-Hybridgetriebestruktur mit Ravigneaux-Planetenradsatz und Antriebsstrang

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DE102019207501B4 (de) * 2019-05-22 2024-05-16 Audi Ag Getriebeanordnung für ein Hybridfahrzeug sowie Hybridfahrzeug

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EP2436546A1 (fr) * 2009-05-25 2012-04-04 UD Trucks Corporation Mécanisme de transmission d'énergie pour véhicule hybride
DE102015110473A1 (de) * 2014-07-17 2016-01-21 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Hybridantriebsstrang mit leistungsverzweigung, der einen turbinengenerator verwendet
DE102016120965A1 (de) * 2015-11-12 2017-05-18 GM Global Technology Operations LLC Antriebsstrang mit modularer Antriebseinheit
DE102016120318A1 (de) * 2015-11-13 2017-05-18 Toyota Jidosha Kabushiki Kaisha Antriebskraftsteuersystem für ein Hybridfahrzeug

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US5823282A (en) * 1995-06-06 1998-10-20 Kabushikikaisha Equos Research Hybrid vehicle with oil pump selectively driven by the engine, a generator or a motor
EP2062770A1 (fr) 2007-11-23 2009-05-27 hofer forschungs- und entwicklungs GmbH & Co KG Système d'entraînement pour véhicules automobiles
EP2436546A1 (fr) * 2009-05-25 2012-04-04 UD Trucks Corporation Mécanisme de transmission d'énergie pour véhicule hybride
DE102015110473A1 (de) * 2014-07-17 2016-01-21 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Hybridantriebsstrang mit leistungsverzweigung, der einen turbinengenerator verwendet
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WO2021185402A1 (fr) 2020-03-17 2021-09-23 Schaeffler Technologies AG & Co. KG Transmission hybride à combinaison frein-embrayage courte axialement et chaîne cinématique
DE102021105000A1 (de) 2020-03-17 2021-09-23 Schaeffler Technologies AG & Co. KG Hybridgetriebe mit axial kurzbauender Brems-Kupplungs-Kombination; sowie Antriebsstrang
DE102020109629A1 (de) 2020-04-07 2021-10-07 Schaeffler Technologies AG & Co. KG P3S-Hybridgetriebestruktur mit Ravigneaux-Planetenradsatz und Antriebsstrang

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