DE102014225240A1 - Hydraulic hybrid system - Google Patents
Hydraulic hybrid system Download PDFInfo
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- DE102014225240A1 DE102014225240A1 DE102014225240.7A DE102014225240A DE102014225240A1 DE 102014225240 A1 DE102014225240 A1 DE 102014225240A1 DE 102014225240 A DE102014225240 A DE 102014225240A DE 102014225240 A1 DE102014225240 A1 DE 102014225240A1
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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
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
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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
- B60K6/22—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
- 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
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
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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
Die Erfindung betrifft ein Hydraulikhybridsystem (1) mit einer verbrennungsmotorischen (10) und einer hydraulischen (20) Antriebseinrichtung, einem Getriebe (30), einer Achse (3), einem Antriebsstrang (31, 32) und einer elektrischen Maschine (50). Um den Betrieb eines Hydraulikhybridsystems zu optimieren, ist die elektrische Maschine (50) an einem Getriebeeingang (29) des Getriebes (30) angeordnet.The invention relates to a hydraulic hybrid system (1) having an internal combustion engine (10) and a hydraulic (20) drive device, a transmission (30), an axle (3), a drive train (31, 32) and an electric machine (50). In order to optimize the operation of a hydraulic hybrid system, the electric machine (50) is arranged on a transmission input (29) of the transmission (30).
Description
Die Erfindung betrifft ein Hydraulikhybridsystem gemäß dem Oberbegriff des Anspruches 1. The invention relates to a hydraulic hybrid system according to the preamble of claim 1.
Stand der TechnikState of the art
Eine elektrische Maschine, beispielsweise ein elektrischer Starter und/oder Generator wird zum Beispiel aus einer fahrzeuginternen elektrischen Energiespeichereinrichtung, wie einer Batterie, mit elektrischer Energie versorgt. Mit der elektrischen Energie kann durch die elektrische Maschine ein zum Starten der verbrennungsmotorischen Antriebseinrichtung benötigtes Drehmoment bereitgestellt werden. Die elektrische Maschine dient darüber hinaus zur Versorgung eines elektrischen Bordnetzes und/oder weiterer elektrischer Verbraucher.An electrical machine, for example an electric starter and / or generator, is supplied, for example, with electrical energy from an in-vehicle electrical energy storage device, such as a battery. With the electric power, a torque required to start the internal combustion engine drive device can be provided by the electric machine. The electric machine also serves to supply an electrical system and / or other electrical consumers.
Bei Hybridfahrzeugen, deren elektrische Maschinen an der Kurbelwelle über Riemen angetrieben werden, ist nachteilig, dass bei abgeschaltetem Verbrennungsmotor, beispielsweise bei durch einen Sekundärantrieb angetriebene niedrige Geschwindigkeiten oder im Segelbetrieb die elektrische Maschine nicht mehr durch den Verbrennungsmotor angetrieben werden kann und dadurch die Energieversorgung der elektrischen Abnehmer, wie beispielsweise Licht, Bordelektronik und elektrische Servolenkung über eine elektrische Energiespeichereinrichtung, beispielsweise einer Batterie erfolgt.In hybrid vehicles whose electric machines are driven on the crankshaft belt, is disadvantageous that when the engine is switched off, for example, driven by a secondary drive at low speeds or sailing operation, the electric machine can not be driven by the engine and thereby the power supply of the electric Customer, such as light, on-board electronics and electric power steering via an electrical energy storage device, such as a battery takes place.
Bei zu niedrigem Energiestand müsste der Verbrennungsmotor wieder gestartet werden, um die Energieversorgung der elektrischen Abnehmer zu gewährleisten.If the energy level is too low, the internal combustion engine would have to be restarted in order to ensure the energy supply to the electrical consumers.
Die Offenlegungsschrift
Nachteilig ist, dass die elektrische Maschine permanent am Verbrennungsmotor eine Last ausübt und bei Stillstand des Verbrennungsmotors keine elektrische Energie bereit stellen kann.The disadvantage is that the electric machine permanently exerts a load on the internal combustion engine and can not provide any electrical energy when the internal combustion engine is at a standstill.
Offenbarung der ErfindungDisclosure of the invention
Aufgabe der Erfindung ist es, den Aufbau eines Hydraulikhybridsystems gemäß dem Oberbegriff des Anspruchs 1 zu optimieren. The object of the invention is to optimize the structure of a hydraulic hybrid system according to the preamble of claim 1.
Die Aufgabe ist bei einem Hydraulikhybridsystem mit einer verbrennungsmotorischen und einer hydraulischen Antriebseinrichtung, einem Getriebe, einer Achse, einem Antriebsstrang und einer elektrischen Maschine dadurch gelöst, dass die elektrische Maschine an einem Getriebeeingang des Getriebes angeordnet ist.The object is achieved in a hydraulic hybrid system with an internal combustion engine and a hydraulic drive device, a transmission, an axle, a drive train and an electric machine characterized in that the electric machine is arranged at a transmission input of the transmission.
Die elektrische Maschine kann durch die Anordnung am Getriebeeingang über den am Getriebe angeordneten Antriebsstrang als Starter die verbrennungsmotorischen Antriebseinrichtung, bzw. den Verbrennungsmotor antreiben, bzw. als Generator durch diese angetrieben werden. In der Funktion des Generators wird eine fahrzeuginterne elektrische Energiespeichereinrichtung aufgeladen, wenn beispielsweise ihr Ladezustand zu niedrig ist. Die elektrische Energiespeichereinrichtung ist beispielsweise eine Batterie. Die erfindungsgemäße Zuordnung des elektrischen Generators liefert den Vorteil, dass dieser die Batterie sowohl über die hydraulische Antriebseinrichtung, als auch über den Verbrennungsmotor aufladen kann. Darüber hinaus wird, zum Beispiel im Schubbetrieb des Hydraulikhybridsystems, bzw. eines Hydraulikhybridfahrzeugs, ein Rekuperationsbetrieb ermöglicht, in welchem Bremsenergie des Hydraulikhybridfahrzeugs über die elektrische Maschine in der Batterie gespeichert werden kann. Im Rekuperationsbetrieb können vorteilhaft sowohl ein hydraulischer Druckspeicher der hydraulischen Antriebseinrichtung als auch die fahrzeuginterne Batterie aufgeladen werden. Die erfindungsgemäße Zuordnung der elektrischen Maschine liefert darüber hinaus den Vorteil, dass die Batterie aus einem hydraulischen Druckspeicher der hydraulischen Antriebseinrichtung geladen werden kann. Das bedeutet, dass die verbrennungsmotorische Antriebseinrichtung erst dann zum Laden der Batterie benötigt wird, wenn das Hydraulikhybridsystem beziehungsweise ein damit ausgestattetes Hybridfahrzeug steht und der hydraulische Druckspeicher leer ist. Das wirkt sich positiv im Kraftstoffverbrauch der verbrennungsmotorischen Antriebseinrichtung aus.The electric machine can drive the internal combustion engine drive device, or the internal combustion engine by the arrangement at the transmission input via the drive train arranged on the transmission as a starter, or driven as a generator by them. In the function of the generator, an in-vehicle electric energy storage device is charged if, for example, its charge state is too low. The electrical energy storage device is, for example, a battery. The assignment of the electric generator according to the invention provides the advantage that it can charge the battery both via the hydraulic drive device and via the internal combustion engine. Moreover, for example, in overrun operation of the hydraulic hybrid system, or a hybrid hydraulic vehicle, recuperation operation is enabled in which braking energy of the hybrid vehicle can be stored in the battery via the electric machine. In the recuperation operation can advantageously be charged both a hydraulic pressure accumulator of the hydraulic drive device and the in-vehicle battery. The inventive assignment of the electric machine also provides the advantage that the battery can be loaded from a hydraulic pressure accumulator of the hydraulic drive device. This means that the internal combustion engine drive device is only required for charging the battery when the hydraulic hybrid system or a hybrid vehicle equipped therewith is stationary and the hydraulic pressure accumulator is empty. This has a positive effect on the fuel consumption of the internal combustion engine drive device.
Des Weiteren kann auf eine zweite Batterie verzichtet werden, da auch im Fehlerfall der Batterie der Generator die elektrische Energieversorgung übernehmen kann.Furthermore, can be dispensed with a second battery, since even in case of failure of the battery, the generator can take over the electrical power supply.
Ferner kann durch die Gewährleistung des Betriebs der elektrischen Maschine durch die hydraulische Antriebseinrichtung die elektrische Energie sowohl eine Hauptwasserpumpe als auch einen Klimakompressor betreiben, auch wenn der Verbrennungsmotor steht. Dies ist sowohl im Motorbetrieb der hydraulischen Antriebseinrichtung als auch während eines Rekuperationsvorganges des Fahrzeugs möglich.Further, by ensuring the operation of the electric machine by the hydraulic drive means, the electric power can operate both a main water pump and an air compressor even when the engine is stopped. This is possible both during engine operation of the hydraulic drive device and during a recuperation process of the vehicle.
Ein weiterer Vorteil der Anordnung der elektrischen Maschine am Getriebeeingang ist, dass die Last an einem eventuell vorhandenen Riementrieb des Verbrennungsmotors reduziert wird.Another advantage of the arrangement of the electric machine at the transmission input is that the load on a possibly existing belt drive of the internal combustion engine is reduced.
Im Falle, dass die an dem Getriebeeingang angeordnete elektrische Maschine ausschließlich als Generator betrieben wird, ist ein Starter am Verbrennungsmotor vorgesehen. In the event that the arranged at the transmission input electric machine is operated exclusively as a generator, a starter is provided on the internal combustion engine.
In einer Weiterbildung der Erfindung ist die elektrische Maschine über eine mechanische Verbindung mit dem Getriebe verbunden.In a development of the invention, the electric machine is connected to the transmission via a mechanical connection.
Die elektrische Maschine kann beispielsweise über einen Riemen- oder Kettentrieb mit dem Getriebe verbunden sein, wodurch die Übertragung eines Drehmoments in sicherer Weise gewährleistet ist. Diese Ausführungsform hat den Vorteil, dass die elektrische Maschine einfach an das Getriebe angebunden werden kann.The electric machine can be connected, for example via a belt or chain drive with the transmission, whereby the transmission of torque is ensured in a secure manner. This embodiment has the advantage that the electric machine can be easily connected to the transmission.
In einer weiteren vorteilhaften Ausführung ist die elektrische Maschine in das Getriebe integriert.In a further advantageous embodiment, the electric machine is integrated in the transmission.
Diese Ausführungsform spart in vorteilhafter Weise Bauraum ein und die Getriebeintegration bietet einen hohen Wirkungsgrad der Leistungsübertragung vom Getriebe in den Antriebsstrang und umgekehrt. In vorteilhafter Weise kann die elektrische Maschine in das Gehäuse des Getriebes aufgenommen sein. Ferner wird die Last an einem eventuell vorhandenen Riementrieb des Verbrennungsmotors reduziert.This embodiment advantageously saves space and the transmission integration provides a high efficiency of power transmission from the transmission to the drive train and vice versa. Advantageously, the electric machine can be accommodated in the housing of the transmission. Furthermore, the load on a possibly existing belt drive of the internal combustion engine is reduced.
In einer Weiterbildung ist die hydraulische Antriebseinrichtung zwischen der verbrennungsmotorischen Antriebseirichtung und dem Getriebe angeordnet. Diese Anordnung ermöglicht in vorteilhafter Weise, dass der Verbrennungsmotor über einen Hydrostat der hydraulischen Antriebseinrichtung deren Druckspeicher ohne weitere mechanische Verluste aufladen kann.In a further development, the hydraulic drive device is arranged between the internal combustion engine drive device and the transmission. This arrangement advantageously makes it possible for the internal combustion engine to be able to charge its pressure reservoir without further mechanical losses via a hydrostatic drive of the hydraulic drive device.
In einer weiteren Ausführung der Erfindung ist die hydraulische Antriebseinrichtung zwischen dem Getriebe und der Achse angeordnet. In a further embodiment of the invention, the hydraulic drive device is arranged between the transmission and the axle.
Diese Anordnung ermöglicht in vorteilhafter Weise, dass die bei der Rekuperation gewonnene Energie ohne mechanische Verluste in die Druckspeicher der hydraulischen Antriebseinrichtung gespeichert werden kann.This arrangement advantageously makes it possible for the energy obtained during recuperation to be stored without mechanical losses in the pressure accumulators of the hydraulic drive device.
In einer Weiterbildung der Erfindung ist nach der verbrennungsmotorischen Antriebseinrichtung eine Kupplung angeordnet.In one embodiment of the invention, a clutch is arranged after the internal combustion engine drive device.
Die Kupplung ist beispielsweise als Trennkupplung ausgeführt. Über die Kupplung kann der Verbrennungsmotor mechanisch vom Antriebsstrang entkoppelt werden wodurch ein Mittschleppen des Verbrennungsmotors vermieden wird. Dadurch kann die hydraulische Antriebseinrichtung verlustfrei die elektrische Maschine antreiben.The coupling is designed for example as a separating clutch. The internal combustion engine can be mechanically decoupled from the drive train via the clutch, thereby avoiding entrainment of the internal combustion engine. This allows the hydraulic drive device lossless drive the electric machine.
In einer Weiterbildung ist zwischen der hydraulische Antriebseinrichtung und dem Antriebsstrang eine Kupplung angeordnet.In a development, a clutch is arranged between the hydraulic drive device and the drive train.
Hierdurch kann in vorteilhafter Weise die hydraulische Antriebseinrichtung von dem Antriebsstrang getrennt werden, was bei höheren Geschwindigkeiten des Kraftfahrzeugs vorteilhaft ist, da das Kraftfahrzeug bei höheren Geschwindigkeiten in der Regel vom Verbrennungsmotor angetrieben wird.In this way, the hydraulic drive device can be separated from the drive train in an advantageous manner, which is advantageous at higher speeds of the motor vehicle, since the motor vehicle is driven at higher speeds usually from the internal combustion engine.
In einer Weiterbildung ist vor der Achse eine Kupplung angeordnet ist. Die Kupplung ist vorzugsweise als Trennkupplung ausgeführt. Wenn die Kupplung geschlossen ist, dann ist die hydraulische Antriebseinrichtung im Bedarfsfall mit der Achse verbunden. Dadurch kann die hydraulische Antriebseinrichtung, auch bei einem Stillstand des Fahrzeugs, die elektrische Maschine antreiben.In a further development, a clutch is arranged in front of the axle. The coupling is preferably designed as a separating clutch. When the clutch is closed, then the hydraulic drive means is connected to the axle when needed. As a result, the hydraulic drive device, even at a standstill of the vehicle, drive the electric machine.
In einer Weiterbildung der Erfindung ist die elektrische Maschine ein Generator. Dadurch wird in vorteilhafter Weise elektrische Energie für elektrische Verbraucher erzeugt. In dieser Ausführung ist ein Starter am Verbrennungsmotor vorgesehen.In a development of the invention, the electric machine is a generator. As a result, electrical energy is generated for electrical consumers in an advantageous manner. In this version, a starter is provided on the internal combustion engine.
Ferner sieht eine Weiterbildung vor, dass die verbrennungsmotorische Antriebseinrichtung keine weitere elektrische Maschine aufweist, wenn die an den Getriebeeingang angeordnete elektrische Maschine ein Starter/Generator ist.Furthermore, a further development provides that the internal combustion engine drive device has no further electric machine when the electrical machine arranged on the transmission input is a starter / generator.
In einer Weiterbildung umfasst die hydraulische Antriebseinrichtung einen Hydrostat, insbesondere eine Axialkolbenmaschine.In a further development, the hydraulic drive device comprises a hydrostat, in particular an axial piston machine.
Als Hydrostat werden hydraulische Maschinen bezeichnet, die bieten den Vorteil, dass sie sowohl als hydraulischer Motor als auch als hydraulische Pumpe funktionieren. Bei der hydraulischen Maschine handelt es sich zum Beispiel um Axialkolbenmaschinen.Hydrostatic machines are hydraulic machines which have the advantage of functioning both as a hydraulic motor and as a hydraulic pump. The hydraulic machine is, for example, axial piston machines.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein Ausführungsbeispiel im Einzelnen beschrieben ist. Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, an embodiment is described in detail.
Kurze Beschreibung der ZeichnungShort description of the drawing
Es zeigen:Show it:
Beschreibung der AusführungsbeispieleDescription of the embodiments
Die verbrennungsmotorische Antriebseinrichtung
Im Motorbetrieb wird der Hydrostat
Die Achse
Im Schubbetrieb des Hydraulikhybridsystems
Die elektrische Maschine
Die elektrische Maschine
Die elektrische Maschine
Die hydraulischen Antriebseinrichtung
Der Verbrennungsmotor
Die Kupplung
Die mechanische Verbindung
Das Getriebe
Die elektrische Maschine
- • Das Fahrzeug steht,
das Getriebe 30 ist in einer Neutralstellung und der Verbrennungsmotor10 dreht. - • Das Fahrzeug steht,
das Getriebe 30 ist in einer Neutralstellung, der Hydrostat20 dreht. Dabei wird der Generatordurch den Hydrostat 20 angetrieben. Diese Fahrsituation ergibt sich jedoch nur bei eingangsgekoppelten Hybridfahrzeugen. - • Das Fahrzeug fährt und der Verbrennungsmotor
10 treibt den Generator an. - • Das Fahrzeug fährt, der Verbrennungsmotor
10 steht, der Hydrostat20 treibt das Fahrzeug an und dieKupplung 40 zum Verbrennungsmotor 10 ist geöffnet. - • Das Fahrzeug fährt, keines der Antriebsaggregate (
Verbrennungsmotor 10 und Hydrostat20 ) istmit den Rädern 4 ,5 verbunden.Die Kupplung 40 zwischen Verbrennungsmotor 10 und Getriebe30 ist geöffnet, der Hydrostat20 ist über dieKupplung 80 abgekoppelt und ein Gangist im Getriebe 30 eingelegt. Dadurch dreht sich die Getriebeeingangswelle und elektrische Energie kann erzeugt werden.
- • The vehicle is stationary, the
gearbox 30 is in a neutral position and theinternal combustion engine 10 rotates. - • The vehicle is stationary, the
gearbox 30 is in a neutral position, thehydrostat 20 rotates. In this case, the generator by the hydrostatic20 driven. However, this driving situation arises only with input-coupled hybrid vehicles. - • The vehicle is driving and the
internal combustion engine 10 drives the generator. - • The vehicle is driving, the
internal combustion engine 10 stands, thehydrostat 20 drives the vehicle and the clutch40 to theinternal combustion engine 10 it is open. - • The vehicle drives, none of the drive units (
internal combustion engine 10 and hydrostat20 ) with thewheels 4 .5 connected. Thecoupling 40 betweeninternal combustion engine 10 andgear 30 is open, thehydrostat 20 is about the clutch80 decoupled and a gear is ingear 30 inserted. This turns the transmission input shaft and electrical energy can be generated.
Diese Fahrsituationen ergeben sich für alle Ausführungsbeispiele.These driving situations arise for all embodiments.
Die elektrische Maschine
Die elektrische Maschine
Der Verbrennungsmotor
Die Kupplung
Die hydraulische Antriebseinrichtung
Die hydraulische Antriebseinrichtung
Der Verbrennungsmotor
Die Kupplung
Die mechanische Verbindung
Das Getriebe
Die elektrische Maschine
Der Verbrennungsmotor
Die Kupplung
Nach dem Getriebe
Wenn die elektrische Maschine
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 102011006087 A1 [0005] DE 102011006087 A1 [0005]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102014225240.7A DE102014225240A1 (en) | 2014-12-09 | 2014-12-09 | Hydraulic hybrid system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102014225240.7A DE102014225240A1 (en) | 2014-12-09 | 2014-12-09 | Hydraulic hybrid system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102014225240A1 true DE102014225240A1 (en) | 2016-06-09 |
Family
ID=55974825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102014225240.7A Withdrawn DE102014225240A1 (en) | 2014-12-09 | 2014-12-09 | Hydraulic hybrid system |
Country Status (1)
Country | Link |
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DE (1) | DE102014225240A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106891711A (en) * | 2017-03-16 | 2017-06-27 | 吉林大学 | Load series-parallel machine hydraulic hybrid control system and control method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011006087A1 (en) | 2011-03-25 | 2012-09-27 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle, has internal combustion engine for driving drive train, and drive/recuperation hydraulic component coupled with electric machine over clutch and coupled with drive train over another clutch, where component comprises reservoir |
-
2014
- 2014-12-09 DE DE102014225240.7A patent/DE102014225240A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011006087A1 (en) | 2011-03-25 | 2012-09-27 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle, has internal combustion engine for driving drive train, and drive/recuperation hydraulic component coupled with electric machine over clutch and coupled with drive train over another clutch, where component comprises reservoir |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106891711A (en) * | 2017-03-16 | 2017-06-27 | 吉林大学 | Load series-parallel machine hydraulic hybrid control system and control method |
CN106891711B (en) * | 2017-03-16 | 2024-01-05 | 吉林大学 | Series-parallel hydraulic hybrid power control system and control method for loader |
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