WO2011076311A1 - Dispositif de boîte de vitesses et véhicule à moteur - Google Patents

Dispositif de boîte de vitesses et véhicule à moteur Download PDF

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Publication number
WO2011076311A1
WO2011076311A1 PCT/EP2010/006685 EP2010006685W WO2011076311A1 WO 2011076311 A1 WO2011076311 A1 WO 2011076311A1 EP 2010006685 W EP2010006685 W EP 2010006685W WO 2011076311 A1 WO2011076311 A1 WO 2011076311A1
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WO
WIPO (PCT)
Prior art keywords
differential
output shaft
transmission
coupled
coupling device
Prior art date
Application number
PCT/EP2010/006685
Other languages
German (de)
English (en)
Inventor
Lars Hofmann
Hendrik Schröder
Original Assignee
Volkswagen Aktiengesellschaft
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Filing date
Publication date
Application filed by Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Publication of WO2011076311A1 publication Critical patent/WO2011076311A1/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
    • B60K6/44—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
    • B60K6/22—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
    • B60K6/42—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
    • 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
    • F16H2200/20—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
    • 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
    • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
    • 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
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2064—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using at least one positive clutch, e.g. dog clutch
    • 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 arrangement for a hybrid vehicle, comprising
  • a differential comprising three differential shafts, namely a differential input shaft and first and second differential output shafts, the differential input shaft having a transmission input shaft coupleable to an engine and the first differential output shaft connected via a node to the output coupled to the hybrid vehicle coupled transmission output shaft and wherein two of the differential shafts are coupled to each other by means of a first controllable coupling device,
  • Differential output shaft and coupled to the transmission output shaft are Differential output shaft and coupled to the transmission output shaft.
  • the invention further relates to a motor vehicle, comprising an internal combustion engine, a transmission arrangement of the aforementioned type and an output, wherein the
  • Such transmission structures e.g. from DE 100 04 0812 A1 are known as simple power-split transmission with input-side differential - short ELVeD - and additional, purely mechanical gear.
  • Vehicle transmissions in general make it possible to adapt a delivery map generated by the internal combustion engine to a demand map required on the driven axle or the driven axles by converting the rotational speed and torque.
  • a stepless conversion is possible for example by an electric transmission, wherein an am
  • Combustion engine arranged generator is used to generate electricity, which drives one or more arranged on the output electric machines in the motor Operation generate the required torque at a suitable speed.
  • the machine operating predominantly as a generator can also operate as a motor, or the machine or machines operating predominantly as a motor can operate as a generator.
  • Such electrical transmission units of two interconnected via a suitable power electronics electrical machines are known as electrical variators.
  • Storage capacity can be a hybrid powertrain with known additional functions of a hybrid vehicle realize.
  • hydraulic machines e.g. Axial piston, radial piston, gear and / or vane machines are used. This is called a hydraulic variator.
  • Vehicle in the entire translation range can be operated near an optimal operating point, hardly possible.
  • the maximum vehicle speed in electric driving is determined by the maximum speed of the input side, i. the first electric machine restricted. This is not avoided by a - basically known - Abkoppeliana the internal combustion engine by means of a arranged in front of the differential input shaft coupling device, since the restart of the
  • the basic idea of the present invention is to allow simultaneous decoupling of the differential and internal combustion engine from the drive. As a result, the drag losses are significantly reduced in purely electrical operation.
  • second coupling device of the invention a particularly ⁇ advantageous start of the engine from the electric-only mode.
  • the output side electric machine of the variator is operated by a motor.
  • the second coupling device is open. Internal combustion engine and input side electrical machine of the variator stand still. The state of the first
  • second coupling device is the first
  • Coupling device opened i. the differential is released. Afterwards the speeds are synchronized. This can be done "digitally" because of the synchronized speeds, ie without any special control method.
  • a third controllable coupling device is arranged between the variator output shaft and the node.
  • the idea behind this development is to decouple the output-side machine, in particular the electric machine of the variator from the output, when the purely mechanical, long gear, in which the vehicle is driven purely by internal combustion engine, is inserted. Through this decoupling, the translation, with which the
  • Output side machine is coupled to the output, are selected so high that the machine contributes in medium and slow driving situations, even a high torque to the output. In particular, it is avoided that it is carried along uselessly by the output at high speeds, with its maximum speed could easily be exceeded at a high gear ratio.
  • Another advantage of said training is in the prevention of drag losses of the output engine of the variator.
  • the freedom obtained by the additional decoupling freedom in the translation, with which the output side engine of the variator is coupled to the output can, as provided in a preferred embodiment, be used by the variator output shaft via a gear ratio with an input element of the third coupling device connected is.
  • Such an additional translation stage may be used, for example, as an additional planetary gear, e.g. one in which one of its shafts is braked by means of a controllable brake with respect to a transmission housing or fixedly connected to the transmission housing.
  • Coupling device connected differential shaft can be coupled by means of a fourth coupling device with one of the other differential shafts.
  • This second purely mechanical gear is preferably designed for a different driving speed range than the first purely mechanical gear.
  • the latter is, as described above, preferably provided with a long translation and intended for high speeds.
  • the second mechanical gear can preferably couple the internal combustion engine with a very short gear ratio to the output, so that with him driving situations low driving speed and high
  • the fourth coupling device may be preceded or followed by a corresponding translation stage.
  • At least one of the coupling devices is designed as a positive coupling.
  • this may be a preferably synchronized jaw clutch.
  • Positive-fit couplings, in contrast to conventional friction clutches wear less and require less space.
  • FIG. 1 Wolf diagram of a transmission structure according to the prior art
  • FIG. 2 Wolf diagram of a transmission structure according to the invention according to a first embodiment
  • Figure 3 Wolf diagram of a preferred embodiment of the transmission structure of FIG.
  • FIG. 4 Wolf diagram of an alternative development of the transmission structure of FIG. 2,
  • FIG. 7 shows a schematic representation of the transmission structure of FIG. 3,
  • FIG. 8 shows a schematic illustration of a further embodiment of the transmission structure of FIG. 3.
  • Coupled means that an active connection path is generally provided between two elements described as “coupled”.
  • This operative connection path may include both non-rotatable connections and connections allowing relative rotations, e.g. Translation levels include.
  • coupling devices can be provided between two elements described as “coupled”, which can interrupt the operative connection path at least temporarily.
  • Coupled in the context of the present description means that the
  • Figure 1 shows a Wolf diagram of a transmission structure according to the prior art.
  • the transmission input shaft 10 is, in particular in the context of the installation of the transmission structure in a motor vehicle, with the internal combustion engine, in particular the crankshaft, coupled.
  • the transmission structure comprises a differential 14, in particular as
  • Planetary gear can be formed and comprises at least three shafts, namely a differential input shaft 14E, a first differential output shaft 14A1 and a second differential output shaft 14A2.
  • the planetary gear 14 is followed by a variator 16, in the preferred embodiment comprises a first electric machine 161 and a second electric machine 162, between which a controllable power electronics is provided.
  • a controllable power electronics is provided.
  • an electrical energy store is also connected to the variator.
  • the variator 16 is connected to the second via its variator input shaft 16E
  • Differential output shaft 14A2 coupled.
  • the variator output shaft 16A is coupled to the transmission output shaft 12 via a node 18.
  • the node 18 can open
  • the differential input shaft 14E and the first differential output shaft 14A1 may be interconnected via a first clutch device K1 so that the differential 14 is locked and lossless without inner relative movements circulates as a block.
  • FIG. 2 shows a first embodiment of a transmission structure according to the invention. This differs from the known transmission structure according to Figure 1 by a second coupling device K2, the node 18 with the free, i. the differential shaft not coupled to the other differential shaft by the first coupling device couples. In the embodiment of Figure 2, this is the first differential output shaft 14A1.
  • the second coupling device K2 can in the case of purely electrical operation of the
  • Vehicle the internal combustion engine, the differential 14 and the first electric machine 161 are completely decoupled from the output. This allows, in particular, a start or restart of the internal combustion engine under optimized conditions, regardless of the vehicle speed.
  • FIG. 2 has an optional (dashed line) third coupling device K3 between the variator output shaft 16A and the node 18.
  • Coupling device K1 is realized, allows. As a result, the drag losses of the second electric machine 162 are avoided. In addition, it is possible, via a not shown in Figure 2, additional gear stage to couple the output side electric machine 162 with high gear ratio to the transmission output shaft 12, which without the third
  • Coupling device K4 is realized. This couples two different differential shafts as the first coupling device K1. Alternatively, the same waves could be coupled as by means of the first coupling device K1, but with a different intermediate gear ratio. Basically, the coupling of two differential shafts, regardless of which particular waves are coupled, the same effect, namely the locking of the differential. Characterized in that by the coupling devices K1 and K4, however
  • Combustion engine allows for downforce.
  • the second purely mechanical gear realized by the fourth clutch device K4 a short
  • Planetary gear can be formed, are not shown in Figures 2-4, but can be easily inserted at any point.
  • FIG. 5 shows a schematic representation of the transmission structure of Figure 3.
  • the node 18 is realized here as a drive shaft with three input and one output pinion. Incidentally, the individual elements are readily identifiable by using the already introduced reference numerals.
  • the structure of FIG. 6 differs from that of FIG. 5 in that an additional planetary gear 20 is provided between the output-side electric machine 162 and the third clutch device K3 as a gear stage for the electric machine 162.
  • the sun of the planetary gear 20 is permanently fixed via the gear housing.
  • Coupling devices must be selected by the expert in the light of the specific task with regard to wear, space, torque transmission, etc. Particularly advantageous is the use of positive instead of frictional clutches considered.

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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)
  • Hybrid Electric Vehicles (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne un dispositif de boîte de vitesses pour un véhicule hybride, comportant un différentiel (14) comprenant trois arbres de différentiel, c.-à-d. un arbre d'entrée de différentiel (14E) et un premier et un deuxième arbre de sortie de différentiel (14A1, 14A2), l'arbre d'entrée de différentiel étant accouplé à un arbre d'entrée de boîte (10) pouvant être accouplé à un moteur à combustion interne, et le premier arbre de sortie de différentiel (14A1) étant accouplé au moyen d'un noeud (18) à un arbre de sortie de boîte (12) pouvant être accouplé à la sortie du véhicule hybride. Deux arbres différentiels (14E, 14A1, 14A2) peuvent être accouplés mutuellement au moyen d'un premier dispositif d'accouplement commandable (K1). Le dispositif de boîte de vitesses comporte également un variateur (16) dont l'arbre d'entrée de variateur est accouplé au deuxième arbre de sortie de différentiel (14A2) et dont l'arbre de sortie de variateur (16A) est accouplé au moyen du noeud (18) au premier arbre de sortie de différentiel (14A1) et à l'arbre de sortie de boîte (12), un deuxième dispositif d'accouplement commandable (K2) étant disposé entre l'arbre de sortie de variateur (16A) et le noeud (18).
PCT/EP2010/006685 2009-12-22 2010-11-02 Dispositif de boîte de vitesses et véhicule à moteur WO2011076311A1 (fr)

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DE102009059934.7 2009-12-22
DE102009059934A DE102009059934A1 (de) 2009-12-22 2009-12-22 Getriebeanordnung und Kraftfahrzeug

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