DE102008044038A1 - Hybrid drive train for hybrid vehicle, has transmission designed as planetary transmission with shafts, which are connected with transmission output, rotor of electrical machine and output of drive train, respectively in torque proof manner - Google Patents

Hybrid drive train for hybrid vehicle, has transmission designed as planetary transmission with shafts, which are connected with transmission output, rotor of electrical machine and output of drive train, respectively in torque proof manner Download PDF

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Publication number
DE102008044038A1
DE102008044038A1 DE102008044038A DE102008044038A DE102008044038A1 DE 102008044038 A1 DE102008044038 A1 DE 102008044038A1 DE 102008044038 A DE102008044038 A DE 102008044038A DE 102008044038 A DE102008044038 A DE 102008044038A DE 102008044038 A1 DE102008044038 A1 DE 102008044038A1
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Germany
Prior art keywords
transmission
drive train
output
hybrid
electric machine
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DE102008044038A
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German (de)
Inventor
Thomas Dr. Rosemeier
Johannes Dr. Kaltenbach
Michael Roske
Timo Wehlen
Matthias Arzner
Bernhard Sich
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Priority to DE102008044038A priority Critical patent/DE102008044038A1/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
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60K6/36—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 ; 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 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 ; 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 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • 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
    • 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
    • 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

The drive train has an electrical machine (3) switched towards a switching transmission (2) in a force flow direction. The electrical machine is coupled to the drive train over the transmission. The transmission is designed as a planetary transmission (4) with shafts (6, 7, 8). The shafts are connected with a transmission output (9), a rotor of the machine and an output of the drive train, respectively in a torque proof manner. The rotor is detachably connected with the transmission output over a switching element. The switching element is designed as a claw coupling (5). An independent claim is also included for a method for operating a hybrid drive train for a motor vehicle.

Description

Die vorliegende Erfindung bezieht sich auf einen Hybridantriebsstrang für ein Kraftfahrzeug gemäß dem Oberbegriff des Patentanspruchs 1. Des weiteren bezieht sich die Erfindung auf ein Verfahren zum Betreiben des erfindungsgemäßen Antriebsstrangs.The The present invention relates to a hybrid powertrain for a motor vehicle according to the preamble of claim 1. Furthermore, the invention relates to a method for operating the inventive Powertrain.

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 vom Antriebsstrang abkoppelbar ist.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 can be decoupled from the drive train by means of a separating 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 Getrebeeingangswelle verbunden ist.From the DE 10012221 A1 shows another hybrid powertrain, in which an internal combustion engine is drivingly connected to a clutch, the output side is in communication with a transmission input shaft which is connected to an input element of an automatic transmission, wherein the rotor of an electric machine via a transmission input stage with high gear ratio connected to the grain input shaft is.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Hybridantriebsstrang für ein Kraftfahrzeug anzugeben, mittels dessen eine Vielzahl von Betriebszuständen darstellbar ist. Insbesondere soll für den Fall, dass das Getriebe nicht als Lastschaltgetriebe ausgeführt ist die Zugkraftunterbrechung kompensiert werden; zudem soll in Neutralstellung des Getriebes eine rein elektrische Fahrt ermöglicht werden. Ein weiteres Ziel der Erfindung ist es, ein Verfahren zum Betreiben des erfindungsgemäßen Antriebsstrangs anzugeben.Of the The present invention is based on the object, a hybrid powertrain indicate for a motor vehicle, by means of which a plurality of Operating states can be displayed. In particular, should be for the case that the gearbox is not designed as a powershift transmission is the traction interruption compensated; In addition, should in Neutral position of the transmission allows a purely electric ride become. Another object of the invention is to provide a method for Operating the drive train according to the invention specify.

Diese Aufgabe wird für einen Hybridantriebsstrang durch die Merkmale des Patentanspruchs 1 gelöst. Ein Verfahren zum Betreiben des erfindungsgemäßen Hybridantriebsstrangs ist Gegenstand des Patentanspruchs 7. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den entsprechenden Unteransprüchen hervor.These Task is for a hybrid powertrain through the features of claim 1. A method of operation the hybrid powertrain according to the invention is Subject of claim 7. Further inventive Embodiments and advantages will be apparent from the corresponding subclaims out.

Demnach wird ein Hybridantriebsstrang für ein Kraftfahrzeug vorgeschlagen, welcher einen Verbrennungsmotor, ein Getriebe und zumindest eine elektrische Maschine umfasst, bei dem zumindest eine elektrische Maschine in Kraftflussrichtung nach dem Getriebe, welches vorteilhafterweise als Schaltgetriebe ausgeführt ist, geschaltet ist. Hierbei wird dem Getriebe ein weiteres Getriebe, und zwar ein Planetensatz mit drei Wellen nachgeschaltet, über das die elektrische Maschine an den Antriebsstrang gekoppelt ist. Der Planetensatz ist mit drei Wellen ausgeführt, wobei die erste Welle mit dem Getriebeausgang, die zweite Welle mit dem Rotor der elektrischen Maschine und die dritte Welle mit dem Abtrieb des Antriebsstrangs drehfest verbunden.Therefore a hybrid powertrain for a motor vehicle is proposed, which is an internal combustion engine, a transmission and at least one electric Machine comprising at least one electric machine in Force flow direction after the transmission, which advantageously designed as a manual transmission, is connected. in this connection The gearbox is another gear, namely a planetary gear set followed by three waves, over which the electric Machine is coupled to the drive train. The planetary gear set is executed with three waves, the first wave with the Transmission output, the second shaft with the rotor of the electric Machine and the third shaft with the output of the drive train rotatably connected.

Gemäß einer Ausführungsform der Erfindung kann der Rotor der elektrischen Maschine über ein Schaltelement, vorzugsweise über eine Klauenkupplung, mit dem Getriebeausgang lösbar verbindbar ausgeführt sein.According to one Embodiment of the invention, the rotor of the electric Machine via a switching element, preferably via a dog clutch, releasably connectable to the transmission output be executed.

Durch die erfindungsgemäße Konzeption kann mit einer konstruktiv einfachen Anordnung neben den üblichen Hybridfunktionen, wie z. B. Boosten oder Rekuperieren, bei Neutralstellung des Getriebes eine rein elektrische Fahrt realisiert werden; in vorteilhafter Weise ist es auch möglich, durch motorischen Betrieb während eines Gangwechsels, eine Zugkraftunterbrechung im Getriebe zumindest teilweise zu kompensieren, wie im folgenden erläutert wird.Due to the concept of the invention can with a structurally simple arrangement in addition to the usual hybrid functions such. B. Boost or Rekuperieren, in the neutral position of the transmission a purely electric ride can be realized; Advantageously, it is also possible by motor operation during a gear change, a Traction interruption in the transmission at least partially compensate, as will be explained below.

Bei geschlossenem Schaltelement zwischen dem Rotor der elektrischen Maschine und dem Getriebeausgang können bei eingelegtem Gang im Getriebe die Hybridfunktionen Boosten und Rekuperieren realisiert werden, wobei während eines Schaltvorgangs im Getriebe die elektrische Maschine motorisch betrieben werden kann, wodurch eine Zugkraftunterbrechung zumindest teilweise kompensiert werden kann. Ferner kann bei geschlossenem Schaltelement zwischen dem Rotor der elektrischen Maschine und dem Getriebeausgang in Neutralstellung des Getriebes rein elektrisch gefahren werden.at closed switching element between the rotor of the electric The machine and the transmission output can be engaged Gear in the gearbox, the hybrid functions boost and recuperation realized being, during a gear shift in the transmission the electric machine can be operated by motor, thereby a traction interruption are at least partially compensated can. Further, when the switching element is closed between the rotor the electric machine and the transmission output in neutral position the gearbox are driven purely electrically.

Gemäß der Erfindung kann bei geöffnetem Schaltelement zwischen dem Rotor der elektrischen Maschine und dem Getriebeausgang die elektrische Maschine als Anfahrelement verwendet werden.According to the Invention can be with open switching element between the Rotor of the electric machine and the transmission output the electric machine be used as starting element.

Die Erfindung wird im folgenden anhand der beigefügten Figur, in der ein gemäß der Erfindung ausgeführter Antriebsstrang schematisch dargestellt ist, beispielhaft näher erläutert.The Invention will be described below with reference to the attached FIGURE, in the one executed according to the invention Drive train is shown schematically, by way of example closer explained.

Bezugnehmend auf die beigefügte Figur umfasst ein erfindungsgemäßer Hybridantriebsstrang einen Verbrennungsmotor, dessen Moment über die Antriebswelle 1 an das Getriebe 2 übertragen wird; das Getriebe 2 ist vorzugsweise als Schaltgetriebe ausgeführt, wobei die Erfindung nicht auf ein Schaltgetriebe beschränkt ist; vielmehr kann das Getriebe auch als Automatgetriebe ausgeführt sein.Referring to the attached figure, a hybrid powertrain according to the invention comprises an internal combustion engine whose momentum is transmitted via the drive shaft 1 to the gearbox 2 is transmitted; The gear 2 is preferably designed as a manual transmission, wherein the invention is not limited to a manual transmission; Rather, the transmission can also be designed as an automatic transmission.

Wie aus der Figur ersichtlich, umfasst der Antriebsstrang eine elektrische Maschine 3, welche in Kraftflussrichtung nach dem Getriebe 2 geschaltet ist und über ein Getriebe 4 an den Antriebsstrang gekoppelt ist. Das Getriebe ist vorzugsweise als Planetensatz mit drei Wellen ausgeführt, wobei die erste Welle 6 mit dem Getriebeausgang 9, die zweite Welle 7 mit dem Rotor der elektrischen Maschine 3 und die dritte Welle 8 mit dem Abtrieb des Antriebsstrangs drehfest verbunden ist.As can be seen from the figure, the drive train comprises an electric machine 3 , which in the direction of power flow to the transmission 2 is switched and via a gearbox 4 is coupled to the drive train. The transmission is preferably designed as a planetary gear set with three shafts, wherein the first shaft 6 with the transmission output 9 , the second wave 7 with the rotor of the electric machine 3 and the third wave 8th is rotatably connected to the output of the drive train.

Die Auslegung des Planetensatzes 4 hängt von der Leistung der verwendeten elektrischen Maschine 3 und der Priorisierung der verschiedenen Hybridfunktionen im Fahrzeug ab.The design of the planetary gear set 4 depends on the power of the used electrical machine 3 and the prioritization of the various hybrid functions in the vehicle.

Des weiteren ist ein Schaltelement, das vorzugsweise als Klauenkupplung 5 ausgeführt ist, vorgesehen, welches den Rotor der elektrischen Maschine 3 mit dem Getriebeausgang 9 lösbar verbindet.Furthermore, a switching element, preferably as a dog clutch 5 is executed, provided, which is the rotor of the electric machine 3 with the transmission output 9 releasably connects.

Wie bereits erläutert können bei geschlossenem Schaltelement 5 bei eingelegtem Gang im Getriebe 2 die Hybridfunktionen Boosten und Rekuperieren realisiert werden; zudem kann bei motorischen Betrieb der elektrischen Maschine 3 während eines Schaltvorgangs im Getriebe 2 eine Zugkraftunterbrechung zumindest teilweise kompensiert werden. Eine rein elektrische Fahrt wird bei geschlossenem Schaltelement 5 in Neutralstellung des Getriebes ermöglicht.As already explained, when the switching element is closed 5 with gear engaged in the transmission 2 the hybrid functions boost and recuperation are realized; In addition, during motor operation of the electric machine 3 during a shift in the transmission 2 a traction interruption are at least partially compensated. A purely electric drive is when the switching element is closed 5 in neutral position of the transmission allows.

11
Antriebswelledrive shaft
22
Getriebetransmission
33
elektrische Maschineelectrical machine
44
Getriebe, PlanetensatzTransmission, planetary set
55
Schaltelement, KlauenkupplungSwitching element claw clutch
66
erste Wellefirst wave
77
zweite Wellesecond wave
88th
dritte Wellethird wave
99
Getriebeausgangtransmission output

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 (8)

Hybridantriebsstrang für ein Kraftfahrzeug, umfassend einen Verbrennungsmotor, ein Getriebe (2) und zumindest eine elektrische Maschine (3), wobei zumindest eine elektrische Maschine (3) in Kraftflussrichtung nach dem Getriebe (2) geschaltet ist, die elektrische Maschine (3) über ein Getriebe (4) an den Antriebsstrang gekoppelt ist, dadurch gekennzeichnet, dass das Getriebe (4) als Planetensatz mit drei Wellen (6, 7, 8) ausgeführt ist, wobei die erste Welle (6) mit dem Getriebeausgang (9), die zweite Welle (7) mit dem Rotor der elektrischen Maschine (3) und die dritte Welle (8) mit dem Abtrieb des Antriebsstrangs drehfest verbunden ist.Hybrid powertrain for a motor vehicle, comprising an internal combustion engine, a transmission ( 2 ) and at least one electric machine ( 3 ), wherein at least one electric machine ( 3 ) in the power flow direction after the transmission ( 2 ), the electric machine ( 3 ) via a transmission ( 4 ) is coupled to the drive train, characterized in that the transmission ( 4 ) as a planetary gear set with three shafts ( 6 . 7 . 8th ), wherein the first wave ( 6 ) with the transmission output ( 9 ), the second wave ( 7 ) with the rotor of the electric machine ( 3 ) and the third wave ( 8th ) is rotatably connected to the output of the drive train. Hybridantriebsstrang für ein Kraftfahrzeug, nach Anspruch 1, dadurch gekennzeichnet, dass der Rotor der elektrischen Maschine (3) über ein Schaltelement (5) mit dem Getriebeausgang (9) lösbar verbindbar ist.Hybrid drive train for a motor vehicle, according to claim 1, characterized in that the rotor of the electric machine ( 3 ) via a switching element ( 5 ) with the transmission output ( 9 ) is releasably connectable. Hybridantriebsstrang für ein Kraftfahrzeug, nach Anspruch 2, dadurch gekennzeichnet, dass das Schaltelement (5) als Klauenkupplung (5) ausgeführt ist.Hybrid drive train for a motor vehicle, according to claim 2, characterized in that the switching element ( 5 ) as a claw coupling ( 5 ) is executed. Hybridantriebsstrang für ein Kraftfahrzeug, nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Getriebe (2) als Schaltgetriebe ausgeführt ist.Hybrid drive train for a motor vehicle, according to one of the preceding claims, characterized in that the transmission ( 2 ) is designed as a manual transmission. Verfahren zum Betreiben eines nach einem der Ansprüche 2 bis 4 ausgeführten Hybridantriebsstrangs für ein Kraftfahrzeug, dadurch gekennzeichnet, dass bei geschlossenem Schaltelement (5) bei eingelegtem Gang im Getriebe (2) die Hybridfunktionen Boosten und Rekuperieren realisiert werden.Method for operating a hybrid drive train according to one of Claims 2 to 4 for a motor vehicle, characterized in that, when the shifting element is closed ( 5 ) with a gear engaged in the transmission ( 2 ) the hybrid functions boost and recuperation are realized. Verfahren zum Betreiben eines Hybridantriebsstrangs für ein Kraftfahrzeug, nach Anspruch 5, dadurch gekennzeichnet, dass während eines Schaltvorgangs im Getriebe (2) eine Zugkraftunterbrechung durch motorischen Betrieb der elektrischen Maschine (3) zumindest teilweise kompensiert wird.Method for operating a hybrid drive train for a motor vehicle, according to claim 5, characterized in that during a switching operation in the transmission ( 2 ) a traction interruption by motor operation of the electric machine ( 3 ) is at least partially compensated. Verfahren zum Betreiben eines Hybridantriebsstrangs für ein Kraftfahrzeug, nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass in Neutralstellung des Getriebes (2) bei geschlossenem Schaltelement (5) eine rein elektrische Fahrt ermöglicht wird.Method for operating a hybrid drive train for a motor vehicle, according to claim 5 or 6, characterized in that in the neutral position of the transmission ( 2 ) with closed switching element ( 5 ) a purely electric ride is possible. Verfahren zum Betreiben eines Hybridantriebsstrangs für ein Kraftfahrzeug, nach Anspruch 5, 6 oder 7, dadurch gekennzeichnet, dass die elektrische Maschine (3) bei geöffnetem Schaltelement (5) als Anfahrelement verwendet wird.Method for operating a hybrid drive train for a motor vehicle, according to claim 5, 6 or 7, characterized in that the electric machine ( 3 ) when the switching element is open ( 5 ) is used as a starting element.
DE102008044038A 2008-11-25 2008-11-25 Hybrid drive train for hybrid vehicle, has transmission designed as planetary transmission with shafts, which are connected with transmission output, rotor of electrical machine and output of drive train, respectively in torque proof manner Withdrawn DE102008044038A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013200826A1 (en) 2013-01-21 2014-07-24 Zf Friedrichshafen Ag Hybrid drive system for a motor vehicle

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

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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013200826A1 (en) 2013-01-21 2014-07-24 Zf Friedrichshafen Ag Hybrid drive system for a motor vehicle
WO2014111217A1 (en) 2013-01-21 2014-07-24 Zf Friedrichshafen Ag Hybrid drive system for a motor vehicle

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