DE102012017545A1 - Drive strand for commercial motor vehicle e.g. omnibus, has freewheel that is arranged between electric machine arranged according to starting element, and crankshaft of primary power supply unit to transmit power to crankshaft - Google Patents
Drive strand for commercial motor vehicle e.g. omnibus, has freewheel that is arranged between electric machine arranged according to starting element, and crankshaft of primary power supply unit to transmit power to crankshaft Download PDFInfo
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- DE102012017545A1 DE102012017545A1 DE201210017545 DE102012017545A DE102012017545A1 DE 102012017545 A1 DE102012017545 A1 DE 102012017545A1 DE 201210017545 DE201210017545 DE 201210017545 DE 102012017545 A DE102012017545 A DE 102012017545A DE 102012017545 A1 DE102012017545 A1 DE 102012017545A1
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- crankshaft
- freewheel
- powertrain
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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
- B60K6/38—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
- B60K6/383—One-way clutches or freewheel devices
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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
- B60K17/26—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, of type of freewheel device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
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- 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
- B60Y2400/42—Clutches or brakes
- B60Y2400/426—Hydrodynamic couplings, e.g. torque converters
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- 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
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H2045/002—Combinations of fluid gearings for conveying rotary motion with couplings or clutches comprising a clutch between prime mover and fluid gearing
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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
Abstract
Description
Die Erfindung betrifft einen Antriebsstrang für ein Kraftfahrzeug nach der im Oberbegriff von Anspruch 1 näher definierten Art. Insbesondere betrifft sie außerdem die Verwendung eines solchen Antriebsstrangs für ein Nutzfahrzeug, bevorzugt für einen Omnibus, wie er beispielsweise im städtischen Nahverkehr eingesetzt werden kann.In particular, it relates to the use of such a powertrain for a commercial vehicle, preferably for a bus, as it can be used for example in urban transport.
Aus dem allgemeinen Stand der Technik sind hybridisierte Antriebssysteme, welche neben einem Verbrennungsmotor als primärem Antriebsaggregat Über eine Elektromaschine verfügen, bekannt. Bei dem primären Antriebsaggregat kann es sich beispielsweise um einen Dieselmotor handeln. Die elektrische Maschine dient in einem solchen Antriebsstrang einerseits zum Rekuperieren von Bremsenergie und andererseits zum Antreiben des Fahrzeugs mit der gespeicherten Energie, entweder alleine oder zusätzlich zur Antriebsleistung aus dem Verbrennungsmotor. Typischerweise wird die elektrische Maschine dazu parallel zum Leistungspfad der über den Verbrennungsmotor aufgebrachten Leistung installiert. Sie kann beispielsweise wie in der
Ein solcher hybridisierter Antriebsstrang kann insbesondere im Stadtverkehr, beispielsweise bei Omnibussen, welche im städtischen Nahverkehr eingesetzt werden, zu erheblichen Energieeinsparungen führen. Ein weiteres Einsparpotenzial, welches gemäß dem allgemeinen Stand der Technik hinlänglich bekannt ist, ist ein sogenannter Start/Stopp-Betrieb des Kraftfahrzeugs. Bei einem solchen Start/Stopp-Betrieb des Kraftfahrzeugs ist es so, dass der Verbrennungsmotor als primäres Antriebsaggregat im Stillstand des Fahrzeugs ausgeschaltet wird, um erst unmittelbar vor der Weiterfahrt wieder gestartet zu werden. Hierdurch wird Kraftstoff eingespart und es werden Emissionen, beispielsweise an roten Ampeln innerhalb der Stadt, zuverlässig vermieden. Nun ist es so, dass zum Starten von Verbrennungsmotoren typischerweise elektrische Starter eingesetzt werden. Diese elektrisch ausgeführten Starter sind im Allgemeinen auf der dem Getriebe abgewandten Seite einer Kurbelwelle des Verbrennungsmotors angeordnet. Sie sind so ausgestattet dass sie die Kurbelwelle des Verbrennungsmotors beschleunigen können und sich dann beispielsweise mittels eines Freilaufs oder einer Trennung der Triebverbindung durch ein Verschieben in axialer Richtung von der Kurbelwelle abkoppeln, um eine Beschädigung des Starters infolge eines Überdrehens durch den hochlaufenden Verbrennungsmotor zu vermeiden. Solche Startersysteme sind typischerweise auf eine Lebensdauer von ca. 60.000 bis 160.000 Startvorgänge ausgelegt, um ihre Größe und den Kosten- und Gewichtsaufwand entsprechend zu reduzieren. Insbesondere für die Start/Stopp-Anwendung in Omnibussen, welche im städtischen Nahverkehr eingesetzt werden, reicht diese Anzahl jedoch bei weitem nicht aus, sodass es zunehmend zu Problemen kommt und die Starter bei Wartungen sehr häufig ausgetauscht werden müssen. Dies stellt ein erhebliches Problem hinsichtlich der Kosten und der Ausfallzeiten für das Fahrzeug dar.Such a hybridized powertrain can lead to significant energy savings, especially in city traffic, for example in buses, which are used in urban transport. Another potential savings, which is well known in the general state of the art, is a so-called start / stop operation of the motor vehicle. In such a start / stop operation of the motor vehicle, it is such that the internal combustion engine is switched off as the primary drive unit at standstill of the vehicle to be restarted immediately before continuing. As a result, fuel is saved and emissions, for example, red lights within the city, reliably avoided. Now, it is the case that electrical starters are typically used to start internal combustion engines. These electrically designed starters are generally arranged on the side facing away from the transmission of a crankshaft of the internal combustion engine. They are equipped so that they can accelerate the crankshaft of the engine and then decouple, for example by means of a freewheel or a separation of the drive connection by a displacement in the axial direction of the crankshaft to prevent damage to the starter as a result of over-revving by the high-speed internal combustion engine. Such starter systems are typically designed for a life of about 60,000 to 160,000 starts to reduce their size and cost and weight accordingly. In particular, for the start / stop application in buses, which are used in urban transport, but this number is far from sufficient, so it is increasingly problematic and the starter for maintenance must be replaced very often. This poses a significant problem in terms of cost and downtime for the vehicle.
Die Aufgabe der hier vorliegenden Erfindung besteht nun darin, einen Antriebsstrang für ein Kraftfahrzeug anzugeben, welcher diese Problematik entschärft und einen Start/Stopp-Betrieb über einen langen Zeitraum ohne Probleme hinsichtlich der Lebensdauer von einzelnen Komponenten gewährleisten kann.The object of the present invention is now to provide a drive train for a motor vehicle, which mitigates this problem and can ensure a start / stop operation over a long period without any problems in terms of the life of individual components.
Erfindungsgemäß wird diese Aufgabe durch einen Antriebsstrang mit den Merkmalen im kennzeichnenden Teil des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen ergeben sich aus den restlichen abhängigen Unteransprüchen. Außerdem ist eine bevorzugte Verwendung im Anspruch 11 angegeben.According to the invention this object is achieved by a drive train with the features in the characterizing part of
Bei dem erfindungsgemäßen Antriebsstrang ist es vorgesehen, dass zwischen der elektrischen Maschine und der Kurbelwelle des primären Antriebsaggregats ein Freilauf angeordnet ist, welcher Leistung auf die Kurbelwelle übertragen kann. Ein solcher Freilauf, welcher einen Leistungsfluss vom Getriebe zu dem primären Antriebsaggregat ermöglicht, wird im typischerweise während des Betriebs auftretenden Leistungsfluss also „frei” laufen und keine Leistung übertragen. Er kann jedoch bei stillstehendem Verbrennungsmotor genutzt werden, um den Verbrennungsmotor, insbesondere bei einem Wiederstart nach einer Stopp-Phase in einem Start/Stopp-Betrieb, über die elektrische Maschine des hybridisierten Antriebsstrangs zu starten. Ein herkömmlicher Starter, welcher gemäß einer bevorzugten Weiterbildung des erfindungsgemäßen Antriebsstrangs auf der gegenüberliegenden Seite der Kurbelwelle weiterhin vorhanden sein soll, wird damit nur noch zum ursprünglichen Starten des Antriebsstrangs benötigt. Kommt es zu einem Wiederstart des Antriebsstrangs im Start/Stopp-Betrieb, so kann über die elektrische Maschine des Antriebsstrangs selbst das primäre Antriebsaggregat wieder gestartet werden.In the drive train according to the invention, it is provided that between the electric machine and the crankshaft of the primary drive unit, a freewheel is arranged, which can transmit power to the crankshaft. Such a freewheel, which allows a power flow from the transmission to the primary drive unit, so run in the typically occurring during operation power flow so "free" and transmit no power. However, it can be used with the internal combustion engine to start the engine, in particular at a restart after a stop phase in a start / stop operation, via the electric machine of the hybridized powertrain. A conventional starter, which should continue to be present on the opposite side of the crankshaft according to a preferred embodiment of the drive train according to the invention, is thus required only for the original starting of the drive train. If the powertrain is restarted during start / stop operation, the primary drive unit can be started again via the electric drive train itself.
Insbesondere kann das Wiederanfahren des Antriebsstrangs über die elektrische Maschine selbst erfolgen, sodass diese bereits über das Getriebe Antriebsleistung an die Räder abgibt und gleichzeitig über den Freilauf den noch stehenden Verbrennungsmotor wieder startet. Der Wiederstart wird damit außerordentlich effizient und schnell, da er parallel zu einem bereits erfolgenden Anfahrvorgang über die elektrische Maschine erfolgen kann.In particular, the restarting of the drive train can take place via the electric machine itself, so that it already delivers drive power to the wheels via the transmission and at the same time restarts the still standing internal combustion engine via the freewheel. The restart will be extremely efficient and fast, as he can take place parallel to an already taking place starting process via the electric machine.
Das Anfahrelement und das Getriebe selbst können insbesondere gemäß einer der Ausgestaltungsvarianten der bereits eingangs genannten
In einer vorteilhaften Weiterbildung des erfindungsgemäßen Antriebsstrangs kann es ferner vorgesehen sein, dass bei dieser Ausgestaltung des erfindungsgemäßen Antriebsstrangs der Freilauf parallel zum Anfahrelement, insbesondere parallel zur Überbrückungskupplung und gegebenenfalls dem Drehschwingungsdämpfer ausgebildet ist. Über diese Anordnung ist es möglich, dass über die geschlossene Überbrückungskupplung weiterhin das Schubmoment des Verbrennungsmotors alternativ oder ergänzend zur elektrischen Maschine zum Abbremsen des Antriebsstrangs genutzt werden kann. Außerdem kann über den Freilauf bei Bedarf das Starten des Verbrennungsmotors über die elektrische Maschine erreicht werden. Gleichzeitig wird ein Einfluss des Freilaufs auf die Funktionalität des Drehschwingungsdämpfers, sofern dieser vorhanden ist, minimiert.In an advantageous development of the drive train according to the invention, it may further be provided that in this embodiment of the drive train according to the invention, the freewheel is formed parallel to the starting element, in particular parallel to the lock-up clutch and optionally the torsional vibration damper. About this arrangement, it is possible that via the closed lock-up clutch further the thrust torque of the internal combustion engine can be used alternatively or in addition to the electric machine for braking the drive train. In addition, the starting of the internal combustion engine via the electric machine can be achieved if necessary via the freewheel. At the same time, an influence of the freewheel on the functionality of the torsional vibration damper, if present, is minimized.
In einer besonders günstigen Weiterbildung des erfindungsgemäßen Antriebsstrangs kann es außerdem vorgesehen sein, dass der Freilauf als fliehkraftabhängiger Freilauf ausgebildet ist. Ein solcher fliehkraftabhängiger Freilauf weist typischerweise Klemmkörper auf, welche ab einer bestimmten Drehzahl von einer Laufbahn abheben und somit oberhalb einer Grenzdrehzahl keinerlei Verschleiß verursachen. Außerdem kann hierdurch eine Rückwirkung auf einen gegebenenfalls vorhandenen Drehschwingungsdämpfer gänzlich ausgeschlossen werden. Durch die ab einer Grenzdrehzahl abgehobenen Klemmkörper des Freilaufs wird also einerseits Verschleiß vermieden und andererseits eine damit einhergehende Leistungseinbuße innerhalb des Antriebsstrangs minimiert. Dies gilt insbesondere dann, wenn die Grenzdrehzahl so gewählt wird, dass diese gemäß einer besonders günstigen Ausgestaltung des erfindungsgemäßen Antriebsstrangs kleiner als die Leerlaufdrehzahl des Verbrennungsmotors, insbesondere kleiner als ca. 400 bis 500 U/min, ist. Eine solche Grenzdrehzahl des fliehkraftabhängigen Freilaufs unterhalb der Leerlaufdrehzahl des Verbrennungsmotors stellt sicher, dass bereits nach Erreichen der Leerlaufdrehzahl des Verbrennungsmotors die Klemmkörper innerhalb des Freilaufs gänzlich abgehoben sind, sodass im regulären Betrieb des Antriebsstrangs, wenn dieser Antriebsleistung vom primären Antriebsaggregat auf angetriebene Räder überträgt, keinerlei Verschleiß und Leistungsverlust innerhalb des erfindungsgemäßen Freilaufs auftritt.In a particularly favorable development of the drive train according to the invention, it can also be provided that the freewheel is designed as a flywheel-dependent freewheel. Such a centrifugal force-dependent freewheel typically has clamping bodies which lift off from a track at a certain speed and thus do not cause any wear above a limit speed. In addition, a reaction to an optionally present torsional vibration damper can be completely excluded. By lifted off from a limiting speed clamp body of the freewheel so on the one hand wear is avoided and on the other hand minimizes a concomitant performance loss within the drive train. This is especially true when the limit speed is chosen so that it is smaller than the idling speed of the engine, in particular less than about 400 to 500 U / min, according to a particularly advantageous embodiment of the drive train according to the invention. Such a limit speed of the centrifugal force-dependent freewheel below the idle speed of the engine ensures that after reaching the idle speed of the internal combustion engine, the clamp body are completely lifted within the freewheel, so in normal operation of the drive train, if this drive power from the primary drive unit transmits to driven wheels, no Wear and loss of performance occurs within the freewheel according to the invention.
Eine besonders günstige und vorteilhafte Verwendung des erfindungsgemäßen Antriebsstrangs ist dabei der Einsatz in Nutzfahrzeugen. Der erfindungsgemäße Antriebsstrang kann prinzipiell in allen Arten von gleislosen Kraftfahrzeugen oder auch schienengebundenen Fahrzeugen eingesetzt werden. Aufgrund der vergleichsweise hohen Masse von Nutzfahrzeugen, insbesondere im Vergleich zu Personenkraftwagen, kann der erfindungsgemäße Aufbau seine besonderen Vorteile bei der Nutzung von rekuperierter Energie durch die Hybridisierung des erfindungsgemäßen Antriebsstrangs jedoch insbesondere bei einem erneuten Beschleunigen von Nutzfahrzeugen ausspielen. Dies gilt vor allem bei Omnibussen, insbesondere im Nahverkehr eingesetzten Omnibussen, welche typischerweise sehr häufig und nur für sehr kurze Strecken von einer Haltestelle zur nächsten fahren und wieder anhalten. Außerdem sind sie überdurchschnittlich häufig von Stopp-Phasen an roten Ampeln, Haltestellen und dergleichen betroffen. Hier macht also die Hybridisierung besonders viel Sinn und durch die Möglichkeit, den erfindungsgemäßen Antriebsstrang besonders effizient im Start/Stopp-Betrieb betreiben zu können, lassen sich weitere energetische und ökologische Vorteile erzielen. Außerdem erlaubt die Möglichkeit, das primäre Antriebsaggregat im Start/Stopp-Betrieb sehr effizient und verschleißarm wieder zu starten, einen sehr wartungsarmen Einsatz des Antriebsstrangs, sodass Ausfallzeiten, welche insbesondere bei Omnibussen im städtischen Nahverkehr außerordentlich teuer und hinsichtlich der Logistik schwierig zu planen sind, wegfallen.A particularly favorable and advantageous use of the drive train according to the invention is the use in commercial vehicles. The drive train according to the invention can be used in principle in all types of trackless motor vehicles or rail-bound vehicles. Due to the relatively high mass of commercial vehicles, especially in comparison to passenger cars, the structure of the invention can play its particular advantages in the use of recuperated energy by the hybridization of the powertrain according to the invention, however, especially in a renewed acceleration of commercial vehicles. This is especially true in buses, especially in local buses used, which typically go very often and only for very short distances from one stop to the next and stop again. In addition, they are more often affected by stop-offs at red lights, stops and the like. Hybridization therefore makes a lot of sense here, and the possibility of being able to operate the drive train according to the invention particularly efficiently in the start / stop mode makes it possible to achieve further energy and ecological advantages. In addition, the possibility of restarting the primary drive unit in start / stop operation very efficiently and with little wear, allows a very low-maintenance use of the drive train, so downtime, which are particularly expensive for buses in urban transport extremely expensive and difficult to plan logistics, eliminated.
Weitere vorteilhafte Ausgestaltungen des erfindungsgemäßen Antriebsstrangs ergeben sich aus den restlichen abhängigen Unteransprüchen und werden anhand des Ausführungsbeispiels deutlich, welches nachfolgend unter Bezugnahme auf die Figuren näher beschrieben wird.Further advantageous embodiments of the drive train according to the invention will become apparent from the remaining dependent claims and will be apparent from the embodiment, which will be described below with reference to the figures.
Dabei zeigen:Showing:
In
In Richtung des Leistungsflusses in dem Antriebsstrang
Der Aufbau des Antriebsstrangs
In der Darstellung der
Innerhalb des Anfahrelements
Das Leitrad
Über den Freilauf
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102010012965 A1 [0002, 0008, 0019, 0021] DE 102010012965 A1 [0002, 0008, 0019, 0021]
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE201210017545 DE102012017545A1 (en) | 2012-09-05 | 2012-09-05 | Drive strand for commercial motor vehicle e.g. omnibus, has freewheel that is arranged between electric machine arranged according to starting element, and crankshaft of primary power supply unit to transmit power to crankshaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210017545 DE102012017545A1 (en) | 2012-09-05 | 2012-09-05 | Drive strand for commercial motor vehicle e.g. omnibus, has freewheel that is arranged between electric machine arranged according to starting element, and crankshaft of primary power supply unit to transmit power to crankshaft |
Publications (1)
Publication Number | Publication Date |
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DE102012017545A1 true DE102012017545A1 (en) | 2013-08-22 |
Family
ID=48915029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210017545 Withdrawn DE102012017545A1 (en) | 2012-09-05 | 2012-09-05 | Drive strand for commercial motor vehicle e.g. omnibus, has freewheel that is arranged between electric machine arranged according to starting element, and crankshaft of primary power supply unit to transmit power to crankshaft |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102012017545A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016222420A1 (en) | 2016-11-15 | 2018-05-17 | Volkswagen Aktiengesellschaft | Clutch drive for a hybrid powertrain |
US11131373B2 (en) * | 2019-04-10 | 2021-09-28 | Exedy Corporation | Torque converter |
DE102013222068B4 (en) | 2012-11-06 | 2023-01-26 | GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) | POWER ENGINE DAMPER OVERRIDE FOR HYBRID DRIVELINES |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5931271A (en) * | 1997-09-19 | 1999-08-03 | General Motors Corporation | Hybrid drive with one-way drive connections |
DE102010012965A1 (en) | 2010-03-25 | 2011-09-29 | Voith Patent Gmbh | Powertrain for a motor vehicle |
-
2012
- 2012-09-05 DE DE201210017545 patent/DE102012017545A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5931271A (en) * | 1997-09-19 | 1999-08-03 | General Motors Corporation | Hybrid drive with one-way drive connections |
DE102010012965A1 (en) | 2010-03-25 | 2011-09-29 | Voith Patent Gmbh | Powertrain for a motor vehicle |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013222068B4 (en) | 2012-11-06 | 2023-01-26 | GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) | POWER ENGINE DAMPER OVERRIDE FOR HYBRID DRIVELINES |
DE102016222420A1 (en) | 2016-11-15 | 2018-05-17 | Volkswagen Aktiengesellschaft | Clutch drive for a hybrid powertrain |
US11131373B2 (en) * | 2019-04-10 | 2021-09-28 | Exedy Corporation | Torque converter |
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Legal Events
Date | Code | Title | Description |
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R012 | Request for examination validly filed | ||
R230 | Request for early publication | ||
R120 | Application withdrawn or ip right abandoned |
Effective date: 20130826 |