WO2007107466A2 - Procédé pour faire fonctionner un système d'entraînement hybride - Google Patents

Procédé pour faire fonctionner un système d'entraînement hybride Download PDF

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Publication number
WO2007107466A2
WO2007107466A2 PCT/EP2007/052232 EP2007052232W WO2007107466A2 WO 2007107466 A2 WO2007107466 A2 WO 2007107466A2 EP 2007052232 W EP2007052232 W EP 2007052232W WO 2007107466 A2 WO2007107466 A2 WO 2007107466A2
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
electric motor
mode
hybrid drive
Prior art date
Application number
PCT/EP2007/052232
Other languages
German (de)
English (en)
Other versions
WO2007107466A3 (fr
Inventor
Manfred Duernholz
Karsten Mann
Uwe Bauer
Markus Hernier
Juergen Wohlhaupter
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2007107466A2 publication Critical patent/WO2007107466A2/fr
Publication of WO2007107466A3 publication Critical patent/WO2007107466A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • 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
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
    • F02D41/3064—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes
    • F02D41/307—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes to avoid torque shocks
    • 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 method for operating a hybrid drive, in particular a hybrid drive for a motor vehicle, having at least one internal combustion engine, which has a first and at least one second operating mode with a first and at least one larger, second operating range, and with at least one electric motor. wherein the internal combustion engine and the electric motor are operated in a parallel hybrid operation by means of a control / regulating device.
  • the internal combustion engine can be switched during operation between a first and a second operating mode in both directions, wherein the two modes differ, for example, by different operating parameters or by the use of different fuels.
  • the corresponding work areas of the first and second operating modes, the efficiency of the combustion, as well as the environmental compatibility can be different in size.
  • the first work area may, for example, comprise only a partial load range. This results, for example, in a first operating mode in which the operation of the internal combustion engine is favorable, but which has a limited working range. If, for example, a higher output of the internal combustion engine is desired than the working range of this first permitting a changeover to the second operating mode, which has a correspondingly larger working range, is desired.
  • Short-term additional power requirements for the hybrid drive can be met by connecting the electric motor (boost mode).
  • boost mode When switching from the first to the second operating mode of the internal combustion engine, there is an area between the working areas (transitional phase) in which the internal combustion engine neither operates unambiguously in the first nor in the second operating mode. In this transition area, the combustion processes can vary greatly, so that it can temporarily lead to performance during the switching, which affect the driving dynamics.
  • the method according to the invention for operating a hybrid drive is distinguished by the fact that the control / regulating device operates the hybrid drive only with the internal combustion engine in the first operating mode in the case of a torque request within the first working range, and if the torque requirement is higher, the electric motor as a function of the torque request to to a maximum value, forming an extended work area, and operating the hybrid propulsion outside of the extended work area with the engine in the second mode of operation.
  • the control / regulating device operates the hybrid drive only with the internal combustion engine in the first operating mode in the case of a torque request within the first working range, and if the torque requirement is higher, the electric motor as a function of the torque request to to a maximum value, forming an extended work area, and operating the hybrid propulsion outside of the extended work area with the engine in the second mode of operation.
  • control / regulating device activates the electric motor with torque requirement outside the extended working range to the internal combustion engine in the second operating mode. This applies in particular if the internal combustion engine reaches its performance limits even in its second mode of operation and a short-term increase in output is required - for example during an overtaking maneuver.
  • control / regulating device operates the electric motor at a transition between the operating modes such that changes in the internal combustion engine torque are compensated. If switching between the operating modes results in short-term torque changes of the internal combustion engine-for example, when changing the operating parameters or when changing the fuel type-then the electric motor can compensate for these short-term torque changes.
  • such a method is used when the first mode is a fuel-efficient and / or a low-emission mode. Fuel savings and emission reductions are generally two motivations for the use of hybrid drives. If the first operating mode has such advantages, but has a smaller working range than the second operating mode, then the method ensures maximum utilization of this first - A -
  • the internal combustion engine is a diesel engine.
  • a diesel engine is understood to mean a compression-ignition internal combustion engine which is intended for the use of diesel fuel but can also use other fuels.
  • homogeneous diesel combustion takes place in the first operating mode. Diesel combustion processes are fuel-saving compared to other combustion processes, have significant disadvantages with respect to their emissions of soot particles.
  • HCCI Homogeneous Charge Compression Ignition
  • diesel fuel is injected directly into the combustion chamber and the resulting fuel-air mixture in the combustion chamber, in contrast to the currently conventional diesel combustion, only ignited when the entire amount of fuel a motor cycle was injected into the respective combustion chamber.
  • the work area of the homogeneous diesel combustion extends so far only over a partial load range of the internal combustion engine. In the full load range, the diesel engine must be operated with a conventional combustion process (second operating mode) in which, after the start of combustion of the diesel fuel, further diesel fuel is injected into the combustion chamber.
  • the hybrid drive to a transmission, wherein a transmission input line with an output line of the internal combustion engine and a power train of the electric motor via a respective controllable clutch can be coupled.
  • a transmission input line with an output line of the internal combustion engine and a power train of the electric motor via a respective controllable clutch can be coupled.
  • this is connected via its own, controllable clutch with the transmission input line.
  • the control / regulating device controls the clutches.
  • the selective connection of the electric motor via the controllable clutch as well as the control of the controllable clutch of the internal combustion engine is operated by the control / regulating device, which can provide by the selective connection of the electric motor for a clearly defined transition between the two operating modes of the internal combustion engine.
  • the output train of the internal combustion engine and the output train of the electric motor are coupled by a controllable, power-splitting transmission.
  • the power component of the internal combustion engine and the electric motor can be optionally determined.
  • Internal combustion engine and electric motor can have different speeds.
  • the power split transmission unites the power components and outputs the total power at a uniform speed at the transmission output.
  • control / regulating device controls the power-split transmission.
  • control / regulating device also coordinates the rotational speed of a transmission output of the power-splitting transmission.
  • the electric motor can be switched over as an electrical generator which charges an electric memory associated with the electric motor.
  • the electric motor can also operate in regenerative mode, this saves a separate generator and an additional gear that connects wheels and generator and additional electrical lines that connect the electrical storage with the generator.
  • kinetic energy of the vehicle is used during braking for charging the electrical storage by an electric generator. Particularly in city traffic, the recovery of kinetic energy (recuperation) via reduction of fuel consumption and increase in range.
  • the electrical storage is a rechargeable battery.
  • a battery With such a battery, the kinetic energy recovered by recuperation and converted into electrical energy can be easily stored.
  • Such a battery is easy to handle, safe and has an acceptable for a motor vehicle ratio of storage capacity and dead weight.
  • FIG. 1 shows a schematic representation of a hybrid drive for use with a method according to the invention
  • FIG. 2 shows a diagram with a first and a second working range of a combustion engine designed as a diesel engine
  • Figure 4 is a diagram with the working areas of the hybrid drive when using the method according to the invention.
  • a hybrid drive 1 consisting of an internal combustion engine 2 and an associated tank 3, and an electric motor 4 with an associated power electronics unit 5 and a designed as a rechargeable battery 6 electrical memory 7 is shown.
  • the internal combustion engine 2 and the electric motor 4 are arranged serially one behind the other on an axle 8.
  • the along the axis 8 extending output train 9 of the engine 2 is separably connected by a controllable first clutch 10 with a drive or driven strands 11 of the electric motor 4 separable.
  • the output line 11 of the electric motor 4 is separably connected to the controllable coupling 10 opposite side by a second controllable clutch 12 with a transmission drive train 13 of a transmission 14.
  • the hybrid drive 1 is operated by means of a control / regulating device 18 in the parallel hybrid, which acts on the internal combustion engine 2, the electric motor 4, for example, the two controllable clutches 10, 12.
  • the internal combustion engine 2 has a first and at least one second operating mode with a first working region 21 with region boundary 22 and at least one second working region 23 working region 21 with region boundary 24, temporary power dips can be compensated for by switching the electric motor 4 during the transition between the two operating modes. At the same time it can be achieved by the connection of the electric motor 4, that the internal combustion engine is clearly in either the first mode or in the second mode, and this also applies to the switching of one of the modes in the respective other mode.
  • FIG. 2 shows a diagram in which the torque M of the internal combustion engine 2 is dependent on the rotational speed n of the internal combustion engine 2 for the first working region 21 of the first operating mode (here the homogeneous diesel combustion), for the second operating region 23 of the second operating mode (here the conventional diesel combustion) and a transition region 25 (with the range limit 26), in which by switching from the first to the second mode or from the second to the first mode, if not clearly defined operation prevails (double arrow 27).
  • the transition region 25 is characterized in that no clearly defined diesel combustion takes place.
  • FIG. 3 shows a diagram with the first working region 21 of the internal combustion engine 2, the working region 28 (with region boundary 29) of the electric motor 4 and an extended working region 30 resulting from addition of the first working region 21 of the internal combustion engine 2 and the working region 28 of the electric motor 4 results.
  • FIG 4 shows a diagram in which the torque M of the hybrid drive 1 as a function of the speed n of the hybrid drive is shown.
  • the diagram has the first working area 21 of the internal combustion engine 2, the extended working area 30 of the internal combustion engine 2 in the first operating mode together with the connected electric motor and the second operating area 23 of the internal combustion engine 2.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un système d'entraînement hybride, en particulier un système d'entraînement hybride pour un véhicule à moteur, lequel système comprend au moins un moteur à combustion interne, présentant un premier et au moins un deuxième mode de fonctionnement avec une première plage de travail et au moins une deuxième plage de travail plus large, ainsi qu'au moins un moteur électrique, le moteur à combustion interne et le moteur électrique fonctionnant en mode hybride parallèle au moyen d'un dispositif de commande/régulation. Selon ladite invention, le dispositif de commande/régulation (18) fait fonctionner le système d'entraînement hybride (1) seulement avec le moteur à combustion interne (2) dans le premier mode de fonctionnement, lorsqu'une demande de couple se trouve dans la première plage de travail (21), puis, en cas de demande de couple supérieure, met en circuit le moteur électrique (4) en fonction de cette demande de couple jusqu'à une valeur maximale, de sorte qu'une plage de travail étendue (30) se forme, et fait fonctionner le système d'entraînement hybride (1) en dehors de la plage de travail étendue (30) avec le moteur à combustion interne (2) dans le deuxième mode de fonctionnement.
PCT/EP2007/052232 2006-03-23 2007-03-09 Procédé pour faire fonctionner un système d'entraînement hybride WO2007107466A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006013295A DE102006013295A1 (de) 2006-03-23 2006-03-23 Verfahren zum Betreiben eines Hybridantriebs
DE102006013295.5 2006-03-23

Publications (2)

Publication Number Publication Date
WO2007107466A2 true WO2007107466A2 (fr) 2007-09-27
WO2007107466A3 WO2007107466A3 (fr) 2008-06-19

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DE (1) DE102006013295A1 (fr)
WO (1) WO2007107466A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007050657A1 (de) * 2007-10-24 2009-04-30 Zf Friedrichshafen Ag Verfahren zum Bestimmen einer Betriebsart bei einem Hybridantriebsstrang eines Fahrzeuges
KR101845302B1 (ko) 2010-12-10 2018-04-04 콘티넨탈 오토모티브 게엠베하 전기 기계로부터의 도움에 의한 내연 기관 작동 방법, 및 내연 기관
DE102010062809A1 (de) * 2010-12-10 2012-06-14 Continental Automotive Gmbh Verfahren zum Betreiben einer Brennkraftmaschine und Brennkraftmaschine
DE102011111073B4 (de) * 2011-08-18 2021-08-19 Audi Ag Energiemanagementverfahren für ein Kraftfahrzeug sowie Hybridantriebssystem eines Kraftfahrzeugs
EP3343017A1 (fr) * 2016-12-27 2018-07-04 Volvo Car Corporation Procédé et système pour démarrer un moteur à combustion interne d'un véhicule hybride et véhicule hybride comportant un tel système de démarrage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1083319A1 (fr) * 1998-04-28 2001-03-14 Hitachi, Ltd. Voiture hybride, et procede et dispositif d'entrainement pour ladite voiture
US6421599B1 (en) * 2001-08-09 2002-07-16 Ford Global Technologies, Inc. Control strategy for an internal combustion engine in a hybrid vehicle
US20060042587A1 (en) * 2004-09-02 2006-03-02 Raimund Ellinger Method for operating a hybrid vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1083319A1 (fr) * 1998-04-28 2001-03-14 Hitachi, Ltd. Voiture hybride, et procede et dispositif d'entrainement pour ladite voiture
US6421599B1 (en) * 2001-08-09 2002-07-16 Ford Global Technologies, Inc. Control strategy for an internal combustion engine in a hybrid vehicle
US20060042587A1 (en) * 2004-09-02 2006-03-02 Raimund Ellinger Method for operating a hybrid vehicle

Also Published As

Publication number Publication date
DE102006013295A1 (de) 2007-09-27
WO2007107466A3 (fr) 2008-06-19

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