DE102007019988A1 - Allwheel-driven passenger car, has hybrid drive including electrical machine, and decoupler arranged between crankshaft of internal-combustion engine and electrical machine that is coupled with internal combustion engine - Google Patents
Allwheel-driven passenger car, has hybrid drive including electrical machine, and decoupler arranged between crankshaft of internal-combustion engine and electrical machine that is coupled with internal combustion engine Download PDFInfo
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- DE102007019988A1 DE102007019988A1 DE102007019988A DE102007019988A DE102007019988A1 DE 102007019988 A1 DE102007019988 A1 DE 102007019988A1 DE 102007019988 A DE102007019988 A DE 102007019988A DE 102007019988 A DE102007019988 A DE 102007019988A DE 102007019988 A1 DE102007019988 A1 DE 102007019988A1
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Classifications
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- 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
- B60W20/15—Control strategies specially adapted for achieving a particular effect
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- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18027—Drive off, accelerating from standstill
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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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
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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
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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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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- 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
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- 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
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- 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
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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
- B60K6/26—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
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- 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
- B60L2240/421—Speed
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- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0685—Engine crank angle
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- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/081—Speed
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft einen allradgetriebenen Personenkraftwagen mit einer ersten und einer zweiten Antriebsachse und einem Hybridantrieb für die beiden Antriebsachsen, wobei der Hybridantrieb eine Kombination aus einer Brennkraftmaschine und einer einzigen, mit der Brennkraftmaschine gekoppelten elektrischen Maschine umfasst, die über ein Getriebe die erste Antriebsachse treibt.The The invention relates to a four-wheel drive passenger car with a first and a second drive axle and a hybrid drive for both Drive axles, wherein the hybrid drive is a combination of a Internal combustion engine and a single, with the internal combustion engine coupled electric machine that includes the first via a gearbox Drive axle drives.
Stand der TechnikState of the art
Antriebsstränge von Personenkraftwagen lassen sich nach Anzahl der angetriebenen Achsen klassifizieren. Man unterscheidet Personenkraftwagen mit einer angetriebenen Achse (Front- oder Heckantrieb) und Personenkraftwagen mit Allradantrieb.Drive trains of Passenger cars can be classified according to the number of driven axles. One differentiates passenger cars with a driven axle (Front or rear wheel drive) and passenger cars with four-wheel drive.
Während bei allradgetriebenen Personenkraftwagen mit zwei Antriebsachsen, die beide ausschließlich von einer Verbrennungskraftmaschine angetrieben werden, die Verteilung der Antriebskraft auf die beiden Achsen in der Regel über ein Verteilergetriebe erfolgt, z. B. über ein Torsionsdifferential, ist es bei Personenkraftwagen der eingangs genannten Art bekannt, die elektrische Maschine entweder direkt mit der Kurbelwelle der Brennkraftmaschine zu koppeln (sogenanntes P1-Hybrid-Konzept) oder alternativ zwischen der Kurbelwelle der Brennkraftmaschine und der elektrischen Maschine eine Trennkupplung vorzusehen (sogenanntes P2-Hybrid-Konzept). In beiden Fällen ist die Abtriebswelle der elektrischem Maschine über ein Getriebe mit einer der beiden Antriebsachsen gekoppelt, gewöhnlich der Vorderachse, die mit der anderen Antriebsachse, gewöhnlich der Hinterachse, über ein Verteilergetriebe verbunden ist. Dies ermöglicht es, die Brennkraftmaschine von der elektrischen Maschine abzukoppeln und die beiden Antriebsachsen im rein elektrischen Fahrbetrieb ausschließlich durch die elektrische Maschine anzutreiben. Während des Betriebs treten jedoch im Verteilergetriebe prinzipbedingte Leistungsverluste auf, die sich negativ auf die Emissionen des Fahrzeugs auswirken.While at All-wheel drive passenger car with two drive axles, the both exclusively be powered by an internal combustion engine, the distribution the driving force on the two axes usually over one Transfer case takes place, for. B. via a torsion differential, it is known in passenger cars of the type mentioned, the electric machine either directly with the crankshaft Combine internal combustion engine (so-called P1 hybrid concept) or alternatively between the crankshaft of the internal combustion engine and the electrical machine to provide a separating clutch (so-called P2 hybrid concept). In both cases is the output shaft of the electric machine via a gearbox with a coupled to the two drive axles, usually the front axle, the with the other drive axle, usually the rear axle, over one Transfer case is connected. This allows the internal combustion engine of disconnect the electric machine and the two drive axles in purely electric driving only by the electric To power the machine. While of operation, however, occur in the transfer case principle Power losses that adversely affect the emissions of the vehicle impact.
Außerdem ist mit dem Lexus RX400h bereits ein allradgetriebener Personenkraftwagen bekannt, dessen Hybridantrieb insgesamt drei elektrische Maschinen umfasst, wobei die Vorderachse über ein leistungsverzweigendes Getriebe von der Brennkraftmaschine und von zwei elektrischen Maschinen angetrieben wird, während die dritte elektrische Maschine die Hinterachse treibt.Besides that is with the Lexus RX400h already a four-wheel drive passenger car known whose hybrid drive a total of three electric machines includes, with the front axle over a power splitter transmission from the engine and is powered by two electric machines while the third electric machine drives the rear axle.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, einen allradgetriebenen Personenkraftwagen der eingangs genannten Art dahingehend zu verbessern, dass Leistungsverluste infolge einer Leistungsverzweigung vermieden werden können.outgoing This is the object of the invention, an all-wheel drive Passenger car of the type mentioned to improve to that power losses due to a power split avoided can be.
Offenbarung der ErfindungDisclosure of the invention
Diese Aufgabe wird gemäß Anspruch 1 dadurch gelöst, dass der Hybridantrieb eine weitere, direkt auf die andere Antriebsachse wirkende elektrische Maschine umfasst, während das Verfahren gemäß Anspruch 7 vorsieht, dass die zweite Antriebsachse direkt von einer weiteren elektrischen Maschine des Hybridantriebs angetrieben wird.These Task becomes according to claim 1 solved by that the hybrid drive another, directly to the other drive axle acting electric machine, while the method according to claim 7 provides that the second drive axle directly from another electric machine of the hybrid drive is driven.
Der Erfindung liegt der Gedanke zugrunde, dass auch durch Verwendung eines Hybridantriebs mit nur zwei elektrischen Maschinen auf das verlustbehaftete Verteilergetriebe verzichtet werden kann, wenn man eine zweite elektrische Maschine als direkten Antrieb für die andere der beiden Antriebsachsen einsetzt.Of the Invention is based on the idea that even by use a hybrid drive with only two electric machines on the lossy transfer case can be omitted if you have a second electric machine as a direct drive for the other the two drive shafts used.
Eine erste Erfindungsalternative sieht vor, dass zwischen der Kurbelwelle der Brennkraftmaschine und der mit dieser gekoppelten elektrischen Maschine eine Trennkupplung angeordnet ist, weil die Kombination eines solchen P2-Hybridkonzepts mit einer elektrisch angetriebenen zweiten Antriebachse im Betrieb eine Reihe von Vorteilen bietet. Zum einen treten keine durch ein Verteilergetriebe bedingten Verluste auf. Zum anderen sind weitere energetisch günstige Startarten möglich, die kein oder nur ein geringes Startreservedrehmoment der elektrischen Maschine erforderlich machen, wie ein Impulsstart, für den die elektrische Maschine ein geringeres Drehmoment als für den bei herkömmlichen P2-Hybridkonzepten üblichen Schlupfstart benötigt.A first alternative of the invention provides that between the crankshaft the internal combustion engine and coupled with this electric machine a separating clutch is arranged, because the combination of such P2 hybrid concept with an electrically driven second drive axle in operation a Offers a number of advantages. On the one hand, none occur due to a transfer case Losses on. On the other hand, other energetically favorable start types possible, the no or only a small starting reserve torque of the electrical Make a machine necessary, such as a pulse start, for which the electric machine lower torque than for at conventional P2 hybrid concepts usual Slip start required.
Dies kann ausgenutzt werden, wenn der Personenkraftwagen in einem Betriebszustand rein elektrisch angetrieben wird und zum Wechsel in einen hybriden Betriebszustand die Verbrennungsmaschine gestartet wird, was gemäß einer bevorzugten Ausgestaltung des erfindungsgemäßen Verfahrens dadurch erfolgt, dass die elektrische Maschine durch Schalten des Getriebes in eine Neutralstellung von der ersten Antriebsachse getrennt und ihr Anker auf eine vorbestimmte Drehzahl gebracht wird, und dass bei Erreichen der vorbestimmten Drehzahl die zuvor geöffnete Trennkupplung geschlossen wird.This can be exploited when the passenger car in an operating condition is driven purely electrically and to change into a hybrid Operating state, the internal combustion engine is started, which is in accordance with a preferred embodiment of the method according to the invention takes place thereby, that the electric machine by switching the gearbox into a Neutral position separated from the first drive axle and its anchor is brought to a predetermined speed, and that when it reaches the predetermined speed closed the previously opened separating clutch becomes.
Dabei kann der Anker der elektrischen Maschine bereits zuvor, das heißt noch vor der Startanforderung, im Fahrbetrieb auf die vorbestimmte Drehzahl beschleunigt werden. Da in diesem Fall bei der Startanforderung weder Zeit noch Energie für eine Beschleunigung des Ankers der elektrischen Maschine benötigt wird, kann die Brennkraftmaschine nicht nur sehr schnell gestartet, sondern auch die dynamische Belastung eines Energiespeichers minimiert und die elektrische Maschine kleiner dimensioniert werden, da kein Startreservedrehmoment für den Start der Brennkraftmaschine vorgehalten werden muss.In this case, the armature of the electric machine can be previously accelerated to the predetermined speed while driving, that is, even before the start request, while driving. Since in this case neither time nor energy is required for acceleration of the armature of the electric machine in the start request, the internal combustion engine can not only be started very quickly, but also minimizes the dynamic load of an energy storage and the size of the electric machine be since no start-up reserve torque for the start of the internal combustion engine must be maintained.
Eine zweite Erfindungsalternative sieht hingegen vor, dass die Kurbelwelle der Brennkraftmaschine fest mit der elektrischen Maschine gekoppelt ist. Die Kombination eines solchen P1-Hybridkonzepts mit einer elektrisch angetriebenen zweiten Antriebsachse bietet ebenfalls Vorteile, durch den Entfall der Trennkupplung vor allem geringere Systemkosten im Vergleich zum P2-Hybridkonzept mit elektrisch angetriebener zweiter Antriebsachse, allerdings auch Nachteile, wie ein geringeres Rekuperationspotenzial und das Fehlen der zuvor beschriebenen Möglichkeit eines Impulsstarts.A second alternative of the invention, however, provides that the crankshaft the internal combustion engine is fixedly coupled to the electric machine. The combination of such a P1 hybrid concept with an electric one driven second drive axle also offers advantages through the elimination of the clutch especially lower system costs in the Comparison to the P2 hybrid concept with electrically driven second drive axle, but also Disadvantages, such as a lower recuperation potential and the absence the possibility described above a pulse start.
Besonders große Vorteile bietet das P1-Hybridkonzept mit elektrisch angetriebener zweiter Antriebsachse in Kombination mit einer direkteinspritzenden Brennkraftmaschine, bei der die mit der Kurbelwelle der Brennkraftmaschine gekoppelte elektrische Maschine steuerbar ist, um in einer Neutralstellung des Getriebes die Kurbelwelle in eine definierte Position zu bringen, in der ein Selbststart der Brennkraftmaschine möglich ist. Dies erlaubt ebenfalls einen Verzicht auf ein Startreservedrehmoment zum Starten der Brennkraftmaschine. Zur Startunterstützung kann in der Brennkraftmaschine ein zündfähiges Gemisch verdichtet werden, wenn die Kurbelwelle in die vorbestimmte Winkelposition gebracht wird, wofür jedoch dann ein gewisses Startreservedrehmoment benötigt wird.Especially size Advantages of the P1 hybrid concept with electrically driven second drive axle in combination with a direct injection Internal combustion engine, in which the crankshaft of the internal combustion engine coupled electric machine is controllable to be in a neutral position the gearbox to bring the crankshaft into a defined position, in which a self-starting of the internal combustion engine is possible. This also allows a waiver of a starting reserve torque for starting the internal combustion engine. To the start support can be compacted in the internal combustion engine, an ignitable mixture, when the crankshaft is brought to the predetermined angular position will, for what However, then a certain starting reserve torque is needed.
Alternativ kann die Brennkraftmaschine beim P1-Hybridkonzept auch in der Neutralstellung des Getriebes mit der als Anlasser dienenden elektrischen Maschine gestartet werden, wobei ihr Anker und die Kurbelwelle auf eine Synchronisationsdrehzahl beschleunigt werden, bevor am Getriebe ein gewünschter Gang eingelegt wird.alternative can the internal combustion engine in the P1 hybrid concept in the neutral position of the transmission with the electric motor serving as a starter are started, with their armature and the crankshaft to a synchronization speed be accelerated before the gearbox a desired gear is engaged.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Im Folgenden wird die Erfindung anhand zweier in der Zeichnung schematisch dargestellter Ausführungsbeispiele näher erläutert. Es zeigen:in the The invention will be described below with reference to two in the drawing illustrated embodiments explained in more detail. It demonstrate:
Ausführungsformen der ErfindungEmbodiments of the invention
Der
in
Der
Hybridantrieb umfasst eine Brennkraftmaschine
Im
Unterschied zu konventionellen P2-Hybridkonzepten mit nur einer
angetriebenen Achse oder mit einem Allradantrieb auf der Basis eines
zwischen der Vorderachse und der Hinterachse angeordneten Verteilergetriebes
können
bei dem in
Wenn
in dieser zuletzt genannten Betriebsart die Brennkraftmaschine
Bei
der ersten Startvariante wird zuerst die elektrische Maschine
The first startup variant is the electric machine first
Bei
der zweiten Startvariante kann die elektrische Maschine
In
einer weiteren Betriebsart, in der die Räder beider Achsen
Der
in
Um
die Brennkraftmaschine
Wenn
es sich bei der Brennkraftmaschine
Um
den Start der Brennkraftmaschine
Im
Vergleich zum P2-Hybridkonzept können beim
P1-Hybridkonzept infolge des Wegfalls der Trennkupplung die Systemkosten
nicht unbeträchtlich
verringert werden. Dies geht jedoch zu Lasten einer Rekuperation
von Bremsenergie, da die Brennkraftmaschine
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007019988A DE102007019988A1 (en) | 2007-04-27 | 2007-04-27 | Allwheel-driven passenger car, has hybrid drive including electrical machine, and decoupler arranged between crankshaft of internal-combustion engine and electrical machine that is coupled with internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007019988A DE102007019988A1 (en) | 2007-04-27 | 2007-04-27 | Allwheel-driven passenger car, has hybrid drive including electrical machine, and decoupler arranged between crankshaft of internal-combustion engine and electrical machine that is coupled with internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007019988A1 true DE102007019988A1 (en) | 2008-11-20 |
Family
ID=39868583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007019988A Ceased DE102007019988A1 (en) | 2007-04-27 | 2007-04-27 | Allwheel-driven passenger car, has hybrid drive including electrical machine, and decoupler arranged between crankshaft of internal-combustion engine and electrical machine that is coupled with internal combustion engine |
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DE (1) | DE102007019988A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010112280A1 (en) * | 2009-04-03 | 2010-10-07 | Robert Bosch Gmbh | Method for operating a hybrid vehicle |
WO2010145863A1 (en) * | 2009-06-17 | 2010-12-23 | Robert Bosch Gmbh | Method and device for determining the beginning of a start phase of an internal combustion engine in a hybrid vehicle |
DE102010038086A1 (en) | 2010-10-11 | 2012-04-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive system for a motor vehicle, method for operating such a drive system and motor vehicle with such a drive system |
FR3044993A1 (en) * | 2015-12-11 | 2017-06-16 | Renault Sas | POWER MANAGEMENT METHOD FOR HYBRID MOTOR VEHICLE |
WO2018157220A1 (en) * | 2017-03-02 | 2018-09-07 | Monteiro De Souza Saulo | Electric propulsion kit for installation in a motor vehicle |
-
2007
- 2007-04-27 DE DE102007019988A patent/DE102007019988A1/en not_active Ceased
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010112280A1 (en) * | 2009-04-03 | 2010-10-07 | Robert Bosch Gmbh | Method for operating a hybrid vehicle |
WO2010145863A1 (en) * | 2009-06-17 | 2010-12-23 | Robert Bosch Gmbh | Method and device for determining the beginning of a start phase of an internal combustion engine in a hybrid vehicle |
US8738205B2 (en) | 2009-06-17 | 2014-05-27 | Robert Bosch Gmbh | Method and device for determining the beginning of a start phase of an internal combustion engine in a hybrid vehicle |
DE102010038086A1 (en) | 2010-10-11 | 2012-04-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive system for a motor vehicle, method for operating such a drive system and motor vehicle with such a drive system |
FR3044993A1 (en) * | 2015-12-11 | 2017-06-16 | Renault Sas | POWER MANAGEMENT METHOD FOR HYBRID MOTOR VEHICLE |
WO2018157220A1 (en) * | 2017-03-02 | 2018-09-07 | Monteiro De Souza Saulo | Electric propulsion kit for installation in a motor vehicle |
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