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DE102008044102A1 - Hybrid assembly for hybrid drive of motor vehicle, has electrical machine, where rotor of machine is connected with gear oil pump and inlet shaft of basis gear of hybrid drive directly or by gearbox - Google Patents

Hybrid assembly for hybrid drive of motor vehicle, has electrical machine, where rotor of machine is connected with gear oil pump and inlet shaft of basis gear of hybrid drive directly or by gearbox Download PDF

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Publication number
DE102008044102A1
DE102008044102A1 DE102008044102A DE102008044102A DE102008044102A1 DE 102008044102 A1 DE102008044102 A1 DE 102008044102A1 DE 102008044102 A DE102008044102 A DE 102008044102A DE 102008044102 A DE102008044102 A DE 102008044102A DE 102008044102 A1 DE102008044102 A1 DE 102008044102A1
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Germany
Prior art keywords
transmission
hybrid
oil pump
internal combustion
combustion engine
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DE102008044102A
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German (de)
Inventor
Kai BORNTRÄGER
Rene Budach
Bernard Hunold
Max Bachmann
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Priority to DE102008044102A priority Critical patent/DE102008044102A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B60W10/115—Stepped gearings with planetary gears
    • 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
    • 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—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 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 transmission gearings
    • B60K6/365—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 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 transmission gearings with the gears having orbital motion
    • 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
    • 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • 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 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
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
    • 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
    • B60L2240/423—Torque
    • 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
    • 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
    • B60W2710/083—Torque
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The hybrid assembly (3) has an electrical machine (10), where rotor (11) of the machine is connected with gear oil pump (8) and an inlet shaft (13) of a base gear (4) of the hybrid drive directly or by a gearbox. A decoupler (7) is formed as locked coupling in unsupported manner, where the gear oil pump is actuated by internal combustion engine by connected decoupler.

Description

Die vorliegende Erfindung bezieht sich auf die Hybridbaugruppe eines Hybridgetriebes eines Kraftfahrzeugs gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to the hybrid assembly of a Hybrid transmission of a motor vehicle according to the Preamble of claim 1.

Aus dem Stand der Technik sind Hybridfahrzeuge umfassend ein Hybridgetriebe enthaltend ein Basisgetriebe und eine Hybridbaugruppe bekannt, wobei die Hybridbaugruppe in der Regel einen hydrodynamischen Drehmomentwandler ersetzt. Sie umfassen zusätzlich zu dem Verbrennungsmotor zumindest einen in der Regel über ein als Planetengetriebe ausgeführtes Getriebe an das Basisgetriebe gekoppelten Elektromotor bzw. eine elektrische Maschine, welche je nach Betriebszustand motorisch oder generatorisch betrieben werden kann. Bei seriellen Hybridfahrzeugen wird ein Generator vom Verbrennungsmotor angetrieben, wobei der Generator den die Räder antreibenden Elektromotor mit elektrischer Energie versorgt.Out In the prior art are hybrid vehicles comprising a hybrid transmission comprising a base gear and a hybrid assembly known, wherein the hybrid assembly usually has a hydrodynamic torque converter replaced. They include in addition to the internal combustion engine at least one usually running over a planetary gear Transmission coupled to the base gear electric motor or a electric machine, which depending on the operating condition motor or can be operated as a generator. For serial hybrid vehicles a generator is driven by the internal combustion engine, wherein the Generator the electric motor driving the wheels with electrical energy provided.

Des weiteren sind parallele Hybridfahrzeuge bekannt, bei denen eine Addition der Drehmomente des Verbrennungsmotors und zumindest einer mit dem Verbrennungsmotor verbindbaren elektrischen Maschine vorzugsweise mittels eines Summierungsgetriebes, beispielsweise mittels eines Planetengetriebes erfolgt. Hierbei ist die zumindest eine elektrische Maschine mit dem Riementrieb oder mit der Kurbelwelle des Verbrennungsmotors verbindbar. Die vom Verbrennungsmotor und/oder der zumindest einen elektrischen Maschine erzeugten Drehmomente werden über ein nachgeschaltetes Getriebe an die angetriebene Achse übertragen.Of Further parallel hybrid vehicles are known in which a Addition of the torques of the internal combustion engine and at least one preferably connectable to the internal combustion engine electric machine by means of a summation gear, for example by means of a Planetary gear is done. Here, the at least one electrical Machine with the belt drive or with the crankshaft of the internal combustion engine connectable. The from the internal combustion engine and / or the at least one electric machine generated torques are over transmit a downstream transmission to the driven axle.

Hierbei ist die Antriebswelle des Hybridgetriebes mit dem Verbrennungsmotor und die Abtriebswelle beispielsweise mittels einer Kardanwelle mit einer Fahrzeugachse verbunden. In der Regel ist am Eingang des Hybridgetriebes ein Torsionsdämpfer angeordnet, wobei der Verbrennungsmotor mittels einer Trennkupplung der Hybridbaugruppe vom Antriebsstrang abkoppelbar ist. Die Trennkupplung ist nach dem Stand der Technik als hydraulisch betätigbare Lamellenkupplung ausgeführt.in this connection is the drive shaft of the hybrid transmission with the internal combustion engine and the output shaft, for example by means of a propeller shaft with connected to a vehicle axle. As a rule, at the entrance of the hybrid transmission a torsion damper arranged, the internal combustion engine by means of a separating clutch of the hybrid assembly from the drive train can be decoupled. The separating clutch is according to the prior art designed as a hydraulically actuated multi-plate clutch.

Beispielsweise beschreibt die DE 103 46640 A1 der Anmelderin einen Antriebsstrang für ein Hybridfahrzeug, bei dem ein Verbrennungsmotor antriebstechnisch mit einer Trennkupplung verbunden ist, deren Ausgangsseite mit einer Getriebeeingangswelle in Verbindung steht, welche mit einem Eingangselement eines Automatgetriebes verbunden ist. Bei dem bekannten Antriebsstrang ist die Getriebeeingangswelle auch mittels einer Elektromaschine antreibbar, wobei zu diesem Zweck der Rotor der Elektromaschine mit der Getriebeeingangswelle verbunden ist.For example, this describes DE 103 46640 A1 the Applicant a powertrain for a hybrid vehicle, in which an internal combustion engine is drivingly connected to a separating clutch whose output side communicates with a transmission input shaft, which is connected to an input element of an automatic transmission. In the known drive train, the transmission input shaft is also driven by means of an electric machine, for which purpose the rotor of the electric machine is connected to the transmission input shaft.

Aus der DE 10012221 A1 geht ein weiterer Hybridantriebsstrang hervor, bei dem ein Verbrennungsmotor antriebstechnisch mit einer Trennkupplung verbunden ist, deren Ausgangsseite mit einer Getriebeeingangswelle in Verbindung steht, welche mit einem Eingangselement eines Automatgetriebes verbunden ist, wobei der Rotor einer Elektromaschine über eine Getriebeeingangsstufe mit hoher Übersetzung mit der Getriebeeingangswelle verbunden ist.From the DE 10012221 A1 shows another hybrid powertrain, in which an internal combustion engine is drivingly connected to a clutch, whose output side communicates with a transmission input shaft, which is connected to an input element of an automatic transmission, wherein the rotor of an electric machine connected via a transmission input stage with high gear ratio with the transmission input shaft is.

In der Regel fahren Kraftfahrzeuge, die ein Hybridgetriebe aufweisen, elektrisch an, wobei die Getriebeölpumpe des Basisgetriebes von der elektrischen Maschine angetrieben wird; sobald sich die elektrische Maschine dreht, wird die Getriebeölpumpe angetrieben, wodurch Öldruck erzeugt wird, so dass im Basisgetriebe geschaltet werden kann. Der permanente Antrieb der Getriebeölpumpe durch den Verbrennungsmotor erweist sich als nachteilig, da der Verbrennungsmotor im rein elektrischen Betrieb vom Antriebsstrang entkoppelt ist.In usually drive motor vehicles that have a hybrid transmission, electrically, wherein the transmission oil pump of the basic transmission is driven by the electric machine; as soon as the electric Engine rotates, the transmission oil pump is driven, causing oil pressure is generated so that can be switched in the base gear. The permanent one Drive the transmission oil pump by the internal combustion engine proves to be disadvantageous because the internal combustion engine in purely electric Operation is decoupled from the drive train.

Wenn der Energiespeicher, der beispielsweise als Doppelschichtkondensator-Energiespeicher ausgeführt sein kann, vollständig entladen ist, was nach längerem Stillstand des Fahrzeugs oder nach Wartungsarbeiten der Fall sein kann, wird bei einer von der elektrischen Maschine angetriebenen Getriebeölpumpe auch bei laufendem Verbrennungsmotor kein Öldruck erzeugt, was darin resultiert, dass das Getriebe nicht geschaltet werden kann; dadurch ist ein Anfahren unmöglich.If the energy storage, for example, designed as a double-layer capacitor energy storage can be completely discharged, which after a long time Standstill of the vehicle or after maintenance work to be the case can, is at a powered by the electric machine Transmission oil pump, even with the internal combustion engine no oil pressure produces, resulting in that the transmission is not switched can be; This makes starting impossible.

Um dieses Problem zu lösen, ist in der Regel nach dem Stand der Technik eine elektrische Zusatzölpumpe vorgesehen, welche an einer zusätzlichen Batterie, z. B. am 12 V/24 V Bordnetz angeschlossen ist. Dies erweist sich jedoch hinsichtlich der Kosten und der Bauraumanforderungen als nachteilig.Around Solving this problem is usually state-of-the-art the technology provided an additional electric oil pump, which on an additional battery, for. B. at 12 V / 24 V vehicle electrical system is connected. This, however, turns out to be the cost and space requirements as disadvantageous.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Hybridbaugruppe des Hybridgetriebes eines Kraftfahrzeugs anzugeben, welche derart ausgestaltet ist, dass die Notwendigkeit des Vorsehens einer Zusatzölpumpe entfällt.Of the The present invention is based on the object, a hybrid module indicate the hybrid transmission of a motor vehicle, which designed in such a way is that the need of providing an auxiliary oil pump eliminated.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.These The object is solved by the features of claim 1. Further embodiments and advantages of the invention are apparent from the dependent claims.

Demnach wird eine Hybridbaugruppe eines Hybridgetriebes eines Kraftfahrzeugs vorgeschlagen, bei der die Trennkupplung, welche den Verbrennungsmotor mit dem Antriebsstrang lösbar verbindet als „unbetätigt geschlossene” Kupplung ausgeführt ist.Therefore is a hybrid assembly of a hybrid transmission of a motor vehicle proposed in which the separating clutch, which is the internal combustion engine releasably connects with the drive train as "unconfirmed closed "coupling is executed.

Gemäß einer besonders vorteilhaften Ausführungsform der Erfindung ist die Trennkupplung als federvorgespannte Lamellenkupplung ausgeführt.According to a particularly advantageous Aus Guidance form of the invention, the separating clutch is designed as a spring-biased multi-plate clutch.

Durch die erfindungsgemäße Konzeption bleibt bei geringem oder nicht vorhandenem Öldruck die Trennkupplung geschlossen, so dass die Getriebeölpumpe zur Bereitstellung des zum Schalten des Basisgetriebes erforderlichen Drucks durch den Verbrennungsmotor angetrieben wird. In vorteilhafter Weise kann dadurch ein Notbetrieb bei Fehlern im Hybridsystem bzw. ein Anfahren mittels des Verbrennungsmotors ermöglicht werden.By the conception according to the invention remains low or nonexistent oil pressure the disconnect clutch closed, so that the transmission oil pump to provide the for Switching the base gear required pressure by the internal combustion engine is driven. Advantageously, thereby an emergency operation in case of errors in the hybrid system or starting by means of the internal combustion engine be enabled.

Erfindungsgemäß kann bei geschlossener Trennkupplung ein generatorischer Betrieb der elektrischen Maschine realisiert werden, um den Energiespeicher zu laden, wobei der Verbrennungsmotor über einen Anlasser und eine unabhängige Starterbatterie angelassen werden kann.According to the invention when the disconnect clutch is closed, a regenerative operation of the Electric machine can be realized to the energy storage to load, with the internal combustion engine via a starter and an independent starter battery to be started can.

Die Erfindung wird im folgenden anhand der beigefügten Figur, in der ein Hybridgetriebe eines parallelen Hybridfahrzeugs schematisch dargestellt ist, beispielhaft näher erläutert.The Invention will be described below with reference to the attached FIGURE, in which a hybrid transmission of a parallel hybrid vehicle schematically is illustrated, explained in more detail by way of example.

Bezugnehmend auf die beigefügte Figur umfasst ein Hybridgetriebe 9 ein nach dem Stand der Technik ausgeführtes Basisgetriebe 4, das in der Regel als Automatgetriebe ausgeführt ist und eine Hybridbaugruppe 3. Die Hybridbaugruppe umfasst eine elektrische Maschine 10 mit einem Rotor 11 und einem Stator 6, wobei der Rotor 11 über eine Welle 12 mit der Getriebeölpumpe 8 und der Eingangswelle 13 des Basisgetriebes 4 verbunden ist. Die Hybridbaugruppe 3 umfasst auch einen nicht dargestellten Energiespeicher, der in Abhängigkeit vom Betriebsmodus der elektrischen Maschine geladen oder entladen wird.Referring to the attached figure includes a hybrid transmission 9 a running according to the prior art base gear 4 , which is usually designed as an automatic transmission and a hybrid assembly 3 , The hybrid assembly includes an electric machine 10 with a rotor 11 and a stator 6 , where the rotor 11 over a wave 12 with the transmission oil pump 8th and the input shaft 13 of the basic gearbox 4 connected is. The hybrid module 3 also includes an energy storage, not shown, which is charged or discharged depending on the operating mode of the electric machine.

Wie aus der Figur ersichtlich, ist die mit dem nicht dargestellten Verbrennungsmotor verbundene Antriebswelle 1 über einen Torsionsdämpfer 5 mit einer Seite einer Trennkupplung 7 verbunden, deren andere Seite mit der Welle 12 verbunden ist. Die Abtriebswelle des Getriebes 9 ist mit dem Bezugszeichen 2 versehen; ferner ist in der Figur mit dem Bezugszeichen 14 ein Retarder bezeichnet.As can be seen from the figure, the drive shaft connected to the internal combustion engine, not shown 1 via a torsion damper 5 with one side of a separating clutch 7 connected, the other side with the shaft 12 connected is. The output shaft of the transmission 9 is with the reference numeral 2 Mistake; Furthermore, in the figure with the reference numeral 14 called a retarder.

Im Rahmen weiterer Ausführungsformen kann der Rotor 11 zur besseren Leistungsanpassung über ein Getriebe, beispielsweise über ein Planetengetriebe, mit dem Antriebsstrang gekoppelt sein. In diesem Fall ist ein Element des Planetengetriebes an ein Gehäuse gekoppelt, wobei ein weiteres Element mit der Seite der Trennkupplung verbunden ist, die nicht mit dem Verbrennungsmotor verbunden ist. Beispielsweise kann der Rotor 11 mit dem Hohlrad und die Trennkupplung mit dem Steg des Planetengetriebes, der Getriebeölpumpe und der Eingangswelle des Basisgetriebes verbunden sein, wobei das Sonnenrad an ein Gehäuse gekoppelt istWithin the scope of further embodiments, the rotor 11 For better performance adaptation via a transmission, for example via a planetary gear, be coupled to the drive train. In this case, an element of the planetary gear is coupled to a housing, wherein another element is connected to the side of the separating clutch, which is not connected to the internal combustion engine. For example, the rotor 11 be connected to the ring gear and the disconnect clutch to the web of the planetary gear, the transmission oil pump and the input shaft of the base gear, wherein the sun gear is coupled to a housing

Gemäß der Erfindung wird vorgeschlagen, die Trennkupplung 7 als „unbetätigt geschlossene” Kupplung auszuführen; vorzugsweise ist die Kupplung 7 als federvorgespannte hydraulisch betätigbare Lamellenkupplung ausgeführt. Bei geschlossener Trennkupplung 7 ist somit die Getriebeölpumpe 8 vom Verbrennungsmotor antreibbar.According to the invention, it is proposed that the separating clutch 7 to be executed as a "normally closed"clutch; Preferably, the clutch 7 designed as a spring-loaded hydraulically actuated multi-plate clutch. With closed disconnect clutch 7 is thus the transmission oil pump 8th drivable by the internal combustion engine.

Dadurch wird im Fall eines entladenen Energiespeichers bei geringem oder nicht vorhandenem Öldruck die Trennkupplung konstruktionsbedingt geschlossen, so dass die Getriebeölpumpe 8 durch den Verbrennungsmotor angetrieben wird, um ein Schalten im Basisgetriebe 4 zu ermöglichen. Das Anfahren erfolgt hierbei über den Verbrennungsmotor.As a result, in the case of a discharged energy store with little or no oil pressure present, the clutch is closed by design, so that the transmission oil pump 8th is driven by the internal combustion engine to shift in the base gearbox 4 to enable. The starting takes place here via the internal combustion engine.

11
Antriebswelledrive shaft
22
Abtriebswelleoutput shaft
33
Hybridbaugruppehybrid module
44
Basisgetriebebasic transmission
55
TorsionsdämpferDampers
66
Statorstator
77
Trennkupplungseparating clutch
88th
GetriebeölpumpeTransmission oil pump
99
Hybridgetriebehybrid transmission
1010
elektrische Maschineelectrical machine
1111
Rotorrotor
1212
Wellewave
1313
Eingangswelleinput shaft
1414
Retarderretarder

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - DE 10346640 A1 [0005] - DE 10346640 A1 [0005]
  • - DE 10012221 A1 [0006] - DE 10012221 A1 [0006]

Claims (5)

Hybridbaugruppe (3) eines Hybridgetriebes (9) eines Kraftfahrzeugs, umfassend zumindest eine elektrische Maschine (10), deren Rotor (11) mit der Getriebeölpumpe (8) und der Eingangswelle (13) des Basisgetriebes (4) des Hybridgetriebes direkt oder über ein Getriebe verbunden ist und eine Trennkupplung (7), welche den Verbrennungsmotor mit dem Antriebsstrang lösbar verbindet, dadurch gekennzeichnet, dass die Trennkupplung (7) als „unbetätigt geschlossene” Kupplung ausgeführt ist, wobei bei geschlossener Trennkupplung (7) die Getriebeölpumpe (8) vom Verbrennungsmotor antreibbar ist, so dass im Fall eines entladenen Energiespeichers bei geringem oder nicht vorhandenem Öldruck die Trennkupplung (7) konstruktionsbedingt geschlossen wird, wodurch die Getriebeölpumpe (8) durch den Verbrennungsmotor angetrieben wird, um ein Schalten im Basisgetriebe (4) des Hybridgetriebes (9) zu ermöglichen.Hybrid module ( 3 ) of a hybrid transmission ( 9 ) of a motor vehicle, comprising at least one electric machine ( 10 ), whose rotor ( 11 ) with the transmission oil pump ( 8th ) and the input shaft ( 13 ) of the basic transmission ( 4 ) of the hybrid transmission is connected directly or via a transmission and a separating clutch ( 7 ), which releasably connects the internal combustion engine with the drive train, characterized in that the separating clutch ( 7 ) is designed as "unconfirmed closed" coupling, wherein when the disconnect clutch is closed ( 7 ) the transmission oil pump ( 8th ) is drivable by the internal combustion engine, so that in the case of a discharged energy storage at low or no existing oil pressure, the separating clutch ( 7 ) is closed by design, whereby the transmission oil pump ( 8th ) is driven by the internal combustion engine to a shift in the base gear ( 4 ) of the hybrid transmission ( 9 ). Hybridbaugruppe (3) eines Hybridgetriebes (9) eines Kraftfahrzeugs, nach Anspruch 1, dadurch gekennzeichnet, dass die Trennkupplung (7) als federvorgespannte hydraulisch betätigbare Lamellenkupplung ausgeführt ist.Hybrid module ( 3 ) of a hybrid transmission ( 9 ) of a motor vehicle, according to claim 1, characterized in that the separating clutch ( 7 ) is designed as a spring-biased hydraulically actuated multi-plate clutch. Hybridbaugruppe (3) eines Hybridgetriebes (9) eines Kraftfahrzeugs, nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine Seite der Trennkupplung (7) mit dem Verbrennungsmotor verbunden ist, wobei die andere Seite der Trennkupplung (7) mit einer mit dem Rotor (11) der elektrischen Maschine (10) verbundenen Welle (12) verbunden ist, die mit der Getriebeölpumpe (8) und der Eingangswelle (13) des Basisgetriebes (4) verbunden ist.Hybrid module ( 3 ) of a hybrid transmission ( 9 ) of a motor vehicle, according to claim 1 or 2, characterized in that one side of the separating clutch ( 7 ) is connected to the internal combustion engine, wherein the other side of the separating clutch ( 7 ) with one with the rotor ( 11 ) of the electric machine ( 10 ) connected shaft ( 12 ) connected to the transmission oil pump ( 8th ) and the input shaft ( 13 ) of the basic transmission ( 4 ) connected is. Hybridbaugruppe eines Hybridgetriebes eines Kraftfahrzeugs, nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass für den Fall, dass der Rotor (11) der elektrischen Maschine (10) zur besseren Leistungsanpassung über ein Getriebe mit dem Antriebsstrang gekoppelt ist, eine Seite der Trennkupplung (7) mit dem Verbrennungsmotor verbunden ist, wobei die andere Seite der Trennkupplung (7) mit einem weiteren Element des Getriebes, mit der Getriebeölpumpe (8) und mit der Eingangswelle (13) des Basisgetriebes verbunden ist, wobei ein weiteres Element des Getriebes an ein Gehäuse gekoppelt ist.Hybrid assembly of a hybrid transmission of a motor vehicle, according to claim 1 or 2, characterized in that in the event that the rotor ( 11 ) of the electric machine ( 10 ) is coupled via a transmission to the drive train for better performance adaptation, one side of the separating clutch ( 7 ) is connected to the internal combustion engine, wherein the other side of the separating clutch ( 7 ) with another element of the transmission, with the transmission oil pump ( 8th ) and with the input shaft ( 13 ) of the base gear is connected, wherein a further element of the transmission is coupled to a housing. Hybridbaugruppe eines Hybridgetriebes eines Kraftfahrzeugs, nach Anspruch 4, dadurch gekennzeichnet, dass das Getriebe als Planetengetriebe ausgeführt ist.Hybrid assembly of a hybrid transmission of a motor vehicle, according to claim 4, characterized in that the transmission is designed as a planetary gear is.
DE102008044102A 2008-11-27 2008-11-27 Hybrid assembly for hybrid drive of motor vehicle, has electrical machine, where rotor of machine is connected with gear oil pump and inlet shaft of basis gear of hybrid drive directly or by gearbox Withdrawn DE102008044102A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2975638A1 (en) * 2011-05-25 2012-11-30 Peugeot Citroen Automobiles Sa Hybrid car, has thermal motor and electrical motor acted upon independently with each other to actuate car, where coupling units mechanically couple single rotary vacuum pump with one of motors
DE102012205825A1 (en) * 2012-04-11 2013-10-17 Zf Friedrichshafen Ag Starting and retarder element and method for operating a starting and Retarderelements
US9541182B2 (en) 2012-04-11 2017-01-10 Zf Friedrichshafen Ag Drive unit for a vehicle, and operating method therefor
DE102020200476A1 (en) 2020-01-16 2021-07-22 Zf Friedrichshafen Ag Electric drive for a vehicle

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DE10012221A1 (en) 2000-03-14 2001-10-04 Daimler Chrysler Ag Hybrid drive for motor vehicle has variable ratio main gearbox, first electrical machine for connection to main drive train for delivering power to or tapping power from main drive train
DE10346640A1 (en) 2003-10-08 2005-05-12 Zahnradfabrik Friedrichshafen Powertrain for a hybrid vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012221A1 (en) 2000-03-14 2001-10-04 Daimler Chrysler Ag Hybrid drive for motor vehicle has variable ratio main gearbox, first electrical machine for connection to main drive train for delivering power to or tapping power from main drive train
DE10346640A1 (en) 2003-10-08 2005-05-12 Zahnradfabrik Friedrichshafen Powertrain for a hybrid vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2975638A1 (en) * 2011-05-25 2012-11-30 Peugeot Citroen Automobiles Sa Hybrid car, has thermal motor and electrical motor acted upon independently with each other to actuate car, where coupling units mechanically couple single rotary vacuum pump with one of motors
DE102012205825A1 (en) * 2012-04-11 2013-10-17 Zf Friedrichshafen Ag Starting and retarder element and method for operating a starting and Retarderelements
US9377094B2 (en) 2012-04-11 2016-06-28 Zf Friedrichshafen Ag Starter and retarder element, and method for operating a starter and retarder element
US9541182B2 (en) 2012-04-11 2017-01-10 Zf Friedrichshafen Ag Drive unit for a vehicle, and operating method therefor
DE102020200476A1 (en) 2020-01-16 2021-07-22 Zf Friedrichshafen Ag Electric drive for a vehicle

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