WO2007121929A1 - Motorisation hybride parallèle - Google Patents

Motorisation hybride parallèle Download PDF

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Publication number
WO2007121929A1
WO2007121929A1 PCT/EP2007/003454 EP2007003454W WO2007121929A1 WO 2007121929 A1 WO2007121929 A1 WO 2007121929A1 EP 2007003454 W EP2007003454 W EP 2007003454W WO 2007121929 A1 WO2007121929 A1 WO 2007121929A1
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WO
WIPO (PCT)
Prior art keywords
electric machine
parallel hybrid
hybrid drive
internal combustion
combustion engine
Prior art date
Application number
PCT/EP2007/003454
Other languages
German (de)
English (en)
Inventor
Ekkehard Pott
Michael Zillmer
Peter Lück
Original Assignee
Volkswagen Aktiengesellschaft
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Filing date
Publication date
Application filed by Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Publication of WO2007121929A1 publication Critical patent/WO2007121929A1/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
    • B60K6/22—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
    • B60K6/28—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 electric energy storing means, e.g. batteries or capacitors
    • 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
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/427—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/11—Electric energy storages
    • B60Y2400/112—Batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/11—Electric energy storages
    • B60Y2400/114—Super-capacities
    • 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
    • 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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the invention relates to a parallel hybrid drive for motor vehicles according to the preamble of claim 1.
  • Parallel hybrid drives for motor vehicles are characterized in that the drive power can be provided by an internal combustion engine and / or a motor-driven electric machine.
  • two embodiments are to be distinguished, namely single-shaft and twin-shaft parallel hybrid drives.
  • a single-shaft parallel hybrid drive comprising an internal combustion engine, a first electric machine which is fixedly connected to the internal combustion engine, and a second electric machine which is connected via a clutch to the internal combustion engine.
  • the first electric machine serves on the one hand to start the internal combustion engine and to charge a battery.
  • the second electric machine is used for electric motor drive and a brake energy recovery, in which case the battery is also charged in the latter case.
  • a twin-shaft parallel hybrid drive comprising an internal combustion engine, a first electric machine which is fixedly connected to the internal combustion engine, and a second electric machine, wherein the internal combustion engine or the first electric machine via a first clutch and the second electric machine via a second clutch with a drive connection to the drive wheels is connectable.
  • the first electric machine is used primarily for charging a battery or for supplying electrical energy for the second electric motor-operated machine.
  • the second electric machine is used for electric motor drive and a brake energy recovery, then in the latter case also the battery is charged.
  • a vehicle drive control system comprising an internal combustion engine, a first electric machine and a second electric machine.
  • the internal combustion engine can be connected via a coupling with the second electric machine, which in turn is connected to a transmission.
  • the second electric machine is assigned an energy store at a high voltage level of, for example, 345 V, via which the second electric machine is supplied in motor operation or which is charged in regenerative operation.
  • the first electric machine is connected to a battery which is at a low voltage level of, for example, 12 V and during motor operation the first electric machine is supplied with voltage or is charged in generator mode by the first electric machine.
  • the first electric machine is used in engine operation exclusively to drive an air conditioner.
  • the achievable with electric machines torque assistance not only depends significantly on the performance and torque of the electric machine, but is also determined by the maximum possible LadeVEntladeä the energy storage and their maximum usable energy content.
  • Batteries be they lead technology, NiMH or Li-Ion, have an internal resistance that leads to high energy throughputs to a warming of the batteries, which has a life-shortening effect.
  • By external cooling the effect of heating can be reduced, but with batteries a faster, lasting change between high charging and discharging and deep discharges should be avoided. This increases the risk of not being able to fully exploit the maximum power / torque of the electric motor when driving.
  • capacitor storages Due to their structure and principle of operation, capacitor storages can also tolerate fast, lasting changes between high charging and discharging powers as well as deep discharges. Their energy content is very small.
  • the invention is based on the technical problem of providing a parallel hybrid drive which allows better utilization of the maximum torque of the second electric machine without reducing the life of the energy store.
  • the first electric machine and the second electric machine operate at a different voltage level, each electric machine having its own energy store.
  • the start of the internal combustion engine by means of the first electric machine which can also apply an additional moment when driven by the internal combustion engine (boost operation) or can serve for regenerative braking energy.
  • the energy storage of the first electric machine is designed as a capacitor storage and the energy storage of the second electric machine as a battery system.
  • the brake energy recovery can be done via the second electric machine.
  • the first and second electric machine can each be operated in addition to the regenerative braking regenerative energy to load the respective associated energy storage or a motor vehicle electrical system battery.
  • the voltage level of the second electric machine is greater than that of the first electric machine in order to keep the currents in the system when driving electrically small.
  • the energy storage of the first electric machine is preferably at or equal to 96 V, more preferably at ⁇ 72 V, more preferably at ⁇ 66 V, more preferably at ⁇ 61 V and particularly preferably at ⁇ 58 V, since then the limit for the contact protection of 60 V is not exceeded.
  • the battery system is preferably at a voltage level> 140 V, more preferably> 170 V, even more preferably> 210 V, even more preferably> 280 V and most preferably> 390 V.
  • the first electric machine preferably has a peak continuous power of 8-25 kW, more preferably 10-18 kW, and still more preferably 12-15 kW at peak voltage.
  • the second electric machine preferably has a 10s continuous power of 15-100 kW, more preferably 20-70 kW, and still more preferably 30-55 kW at peak voltage. More preferably, the peak power of the second electric machine is at least 30%, more preferably 50%, even more preferably 100% and even more preferably 200% above the level of the first electric machine.
  • the first electric machine eg as a belt-driven electric motor
  • the first electric machine can also be operated at on-board voltage level with, for example, 12 V (or 14 V) and connected to a vehicle power supply battery (eg PbA).
  • the second electric machine is z. B. connected to a high-voltage battery or to a capacitor memory with a voltage ⁇ 96 V, wherein the value of the voltage represents only a preferred value.
  • the limitation of the voltage level for the first electric machine has the further advantage that in the design of the energy storage with capacitors, the required space is not too large, since individual capacitor cells have only a rated voltage of about 2.3-2.5 V.
  • the first electric machine is designed as an asynchronous machine and the second electric machine as a permanent-magnet synchronous machine.
  • a flywheel preferably a two-mass flywheel, is arranged between the first electric machine and the clutch.
  • the clutch can be very small dimensions, since the temporary peak moments of the engine are transmitted only attenuated to the clutch.
  • the separating clutch can be operated almost wear-free, since closing and opening operations are usually carried out practically free differential speed.
  • the energy store of the first and / or second electric machine is connected via a DC / DC converter to the vehicle electrical system, wherein the one or more DC / DC converters are bidirectional in order to ensure emergency starting capability. For example, if the energy storage of the first electric machine discharged, it can be charged for the starter process by the electrical system battery.
  • a controllable charging path is arranged between the energy stores of the first and second charging paths. This also makes it possible to ensure the starting capability when the energy store of the first electric machine is discharged.
  • the first electric machine is arranged on the side of the internal combustion engine opposite the output, usually thus the belt drive side.
  • the electric machine can be optionally separated via a switchable clutch of the internal combustion engine.
  • the electric machine can be integrated in the belt drive of the internal combustion engine.
  • Fig. 1 is a schematic block diagram of a single-shaft parallel hybrid drive
  • Fig. 2 is a schematic block diagram of one of the output side of
  • the parallel hybrid drive 1 comprises an internal combustion engine 2, a first electric machine 3 and a second electric machine 4, which are connected to one another via a separable coupling 5.
  • the first electric machine 3 is fixedly connected to the output shaft of the internal combustion engine 2.
  • the second electric machine 4 is preferably connected axially fixed to a transmission 6, which is designed for example as a manual switch, double-clutch transmission or converter automatic transmission. In two-shaft embodiments, however, the connection is made via a coupling.
  • the first electric machine 3 is connected via a power electronics 7 with an energy storage 8, which is preferably designed as a capacitor storage.
  • the second electric machine 4 is connected via a second power electronics 9 with a second energy storage device 10, which is preferably designed as a battery system.
  • the function of the power electronics 7 and 9 is the conversion of the AC voltage of the electric machine 3, 4 in a DC voltage for charging the energy storage 8 and 10.
  • the two electric machines 3, 4 and the associated energy storage 8, 10 work at a different voltage level, wherein the voltage level of the second energy storage 10 is greater than that of the first Energy storage 8 is.
  • the second energy storage 10 is connected via a DC / DC converter 11 to the vehicle electrical system, which operates, for example, to 12 V voltage level, whereas the second energy storage 10, for example, operates at 288 V voltage level.
  • the DC / DC converter 11 can also be integrated in the power electronics 9. Since the start of the internal combustion engine 2 is preferably carried out by the electric machine 3, a sufficient state of charge of the energy accumulator 8 should be ensured.
  • the energy storage 8 can be connected to the energy storage device 10 and / or the vehicle electrical system battery, not shown.
  • the connection to the energy storage device 10 can take place via a separate charging line or separate DC / DC converter or the DC / DC converter 1 1 is formed switchable, so that it can be switched between the on-board network and energy storage 8, wherein additionally one Adjustment of the voltage level takes place, since usually the voltage level of the energy storage 8 is greater than the vehicle electrical system voltage of 12 V, for example.
  • the function of the first electric machine 3 is, in addition to the starting of the internal combustion engine 2, the application of a boost torque when the internal combustion engine 2 provides the drive power.
  • the first electric machine 3 operates by motor and the second electric machine 4 by a generator.
  • the first electric machine 3 is used for braking energy recovery when driven by the internal combustion engine 2 and then operates as a generator, whereby the first energy storage 8 is charged.
  • the second electric machine 4 is used for driving in pure electric driving and is then operated by a motor (clutch open).
  • the brake energy recovery can be done in two ways, namely regenerative operation of the second electric machine 4 and / or the first electric machine 3 (after the clutch has been closed).

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne une motorisation hybride parallèle (1) comprenant un moteur à combustion interne (2), une première machine électrique (3), cette première machine électrique (3) étant entraînée au moins par moteur pour démarrer le moteur à combustion interne (2), et une seconde machine électrique (4) entraînée au moins par moteur pour produire un couple d'entraînement dans la chaîne cinématique, le moteur à combustion interne (2) étant relié à la chaîne cinématique ou à la seconde machine électrique (4) par l'intermédiaire d'un embrayage (5) et un accumulateur d'énergie (8, 10) étant associé à la première et à la seconde machine électrique (3, 4). Selon ladite invention, la première machine électrique (3) et la seconde machine électrique (4) fonctionnent à un niveau de tension différent, un accumulateur d'énergie propre (8, 10) étant associé à chaque machine électrique (3, 4).
PCT/EP2007/003454 2006-04-21 2007-04-20 Motorisation hybride parallèle WO2007121929A1 (fr)

Applications Claiming Priority (2)

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CN101722826B (zh) * 2008-10-11 2013-07-24 比亚迪股份有限公司 一种混合动力驱动系统
CN111016880A (zh) * 2018-10-10 2020-04-17 马自达汽车株式会社 车辆驱动装置
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CN111016880A (zh) * 2018-10-10 2020-04-17 马自达汽车株式会社 车辆驱动装置
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FR3137618A1 (fr) * 2022-07-11 2024-01-12 Valeo Equipements Electriques Moteur Architecture de traction pour véhicule automobile à double machines électriques tournantes

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