DE102018130784A1 - Gear unit for a hybrid motor vehicle with planetary gear; Drive train and method for performing a gear change - Google Patents
Gear unit for a hybrid motor vehicle with planetary gear; Drive train and method for performing a gear change Download PDFInfo
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- DE102018130784A1 DE102018130784A1 DE102018130784.5A DE102018130784A DE102018130784A1 DE 102018130784 A1 DE102018130784 A1 DE 102018130784A1 DE 102018130784 A DE102018130784 A DE 102018130784A DE 102018130784 A1 DE102018130784 A1 DE 102018130784A1
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- Prior art keywords
- gear
- planetary gear
- clutch
- brake
- carrier
- Prior art date
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Classifications
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- 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
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- 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
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- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
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- B60W30/18—Propelling the vehicle
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0422—Synchronisation before shifting by an electric machine, e.g. by accelerating or braking the input shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0052—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2043—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with five engaging means
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Structure Of Transmissions (AREA)
Abstract
Die Erfindung betrifft eine Getriebeeinheit (1) für ein hybrides Kraftfahrzeug, mit einer mit einem Verbrennungsmotor koppelbaren ersten Antriebswelle (2), einer elektrischen Maschine (3), einer mit der elektrischen Maschine (3) gekoppelten zweiten Antriebswelle (4), einem Planetengetriebe (5), wobei das Planetengetriebe (5) mit einem ersten Planetenradsatz (6) und einem zweiten Planetenradsatz (7) ausgestattet ist, ein erstes Hohlrad (8) sowie ein erstes Sonnenrad (9) in Zahneingriff mit mehreren, auf einem ersten Träger (10) drehbar aufgenommenen, ersten Planetenrädern (11) des ersten Planetenradsatzes (6) stehen und ein zweites Hohlrad (12) sowie ein zweites Sonnenrad (13) in Zahneingriff mit mehreren, auf einem zweiten Träger (14) drehbar aufgenommenen, zweiten Planetenrädern (15) des zweiten Planetenradsatzes (7) stehen, und wobei das erste Hohlrad (8) drehfest mit dem zweiten Sonnenrad (13) verbunden ist, mit einer, zwischen der ersten Antriebswelle (2) und dem ersten Träger (10) wirkend eingesetzten, ersten Kupplung (16), einer zum Überbrücken des ersten Planetenradsatzes (6) oder des zweiten Planetenradsatzes (7) eingesetzten zweiten Kupplung (17) sowie einer mit dem ersten Sonnenrad (9) zusammenwirkenden Bremse (18), wobei die zweite Antriebswelle (4) mit dem ersten Träger (10) drehverbunden ist. Zudem betrifft die Erfindung einen Antriebsstrang (30) mit dieser Getriebeeinheit (1) sowie Verfahren zum Durchführen eines Gangwechsels mittels dieser Getriebeeinheit (1).The invention relates to a transmission unit (1) for a hybrid motor vehicle, having a first drive shaft (2) that can be coupled to an internal combustion engine, an electrical machine (3), a second drive shaft (4) coupled to the electrical machine (3), and a planetary gear ( 5), the planetary gear (5) being equipped with a first planetary gear set (6) and a second planetary gear set (7), a first ring gear (8) and a first sun gear (9) in meshing engagement with several on a first carrier (10 ) rotatably received first planet gears (11) of the first planetary gear set (6) and a second ring gear (12) and a second sun gear (13) mesh with a plurality of second planet gears (15) rotatably received on a second carrier (14) of the second planetary gear set (7), and wherein the first ring gear (8) is non-rotatably connected to the second sun gear (13), with a, between the first drive shaft (2) and the first carrier (10) acting first clutch (16), a second clutch (17) used to bridge the first planetary gear set (6) or the second planetary gear set (7) and a brake (18) interacting with the first sun gear (9), the second drive shaft (4) is rotatably connected to the first carrier (10). The invention also relates to a drive train (30) with this gear unit (1) and a method for performing a gear change by means of this gear unit (1).
Description
Die Erfindung betrifft eine (hybride) Getriebeeinheit für ein hybrides Kraftfahrzeug, welche Getriebeeinheit auch als Hybridgetriebe bezeichnet ist, mit einer mit einem Verbrennungsmotor koppelbaren ersten Antriebswelle, einer elektrischen Maschine, einer mit der elektrischen Maschine gekoppelten zweiten Antriebswelle, einem Planetengetriebe, wobei das Planetengetriebe mit einem ersten Planetenradsatz und einem zweiten Planetenradsatz ausgestattet ist, ein erstes Hohlrad sowie ein erstes Sonnenrad in Zahneingriff mit mehreren, auf einem ersten Träger drehbar aufgenommenen, ersten Planetenrädern des ersten Planetenradsatzes stehen und ein zweites Hohlrad sowie ein zweites Sonnenrad in Zahneingriff mit mehreren, auf einem zweiten Träger drehbar aufgenommenen, zweiten Planetenrädern des zweiten Planetenradsatzes stehen, und wobei das erste Hohlrad drehfest mit dem zweiten Sonnenrad verbunden ist, mit einer, zwischen der ersten Antriebswelle und dem ersten Träger wirkend eingesetzten, ersten Kupplung, einer zum Überbrücken / Verblocken des ersten Planetenradsatzes oder des zweiten Planetenradsatzes eingesetzten zweiten Kupplung sowie einer mit dem ersten Sonnenrad zusammenwirkenden (ersten) Bremse. Des Weiteren betrifft die Erfindung einen Antriebsstrang mit dieser Getriebeeinheit. Auch betrifft die Erfindung Verfahren zum Durchführen eines Gangwechsels unter Ansteuerung der Getriebeeinheit.The invention relates to a (hybrid) transmission unit for a hybrid motor vehicle, which transmission unit is also referred to as a hybrid transmission, with a first drive shaft that can be coupled to an internal combustion engine, an electric machine, a second drive shaft that is coupled to the electric machine, and a planetary gear, the planetary gear being with a first planetary gear set and a second planetary gear set, a first ring gear and a first sun gear are in meshing engagement with a plurality of first planet gears of the first planetary gear set, which are rotatably received on a first carrier, and a second ring gear and a second sun gear are in meshing engagement with one another are second carrier rotatably received, second planet gears of the second planetary gear set, and wherein the first ring gear is rotatably connected to the second sun gear, with a first, acting between the first drive shaft and the first carrier en clutch, a second clutch used for bridging / blocking the first planetary gear set or the second planetary gear set, and a (first) brake interacting with the first sun gear. Furthermore, the invention relates to a drive train with this gear unit. The invention also relates to methods for performing a gear change while controlling the gear unit.
Gattungsgemäße Hybridgetriebe sind aus dem Stand der Technik bereits hinlänglich bekannt. Beispielsweise offenbart die
Aufgabe der vorliegenden Erfindung ist es, die Nutzbarkeit der elektrischen Maschine sowie den Komfort bei einem Gangwechsel zu verbessern.The object of the present invention is to improve the usability of the electrical machine and the comfort when changing gear.
Dies wird erfindungsgemäß dadurch gelöst, dass die zweite Antriebswelle mit dem ersten Träger drehverbunden ist.This is achieved according to the invention in that the second drive shaft is rotationally connected to the first carrier.
Dadurch lassen sich in unterschiedlichen Betriebszuständen die jeweiligen Gänge der vorzugsweise als 6-Gang-Getriebe ausgebildeten Getriebeeinheit besonders geschickt umschalten. Dies ermöglicht einen hohen Schaltkomfort.As a result, the respective gears of the gear unit, which is preferably designed as a 6-speed gear unit, can be switched in a particularly clever manner in different operating states. This enables a high switching comfort.
Weitere vorteilhafte Ausführungen sind mit den Unteransprüchen beansprucht und nachfolgend näher erläutert.Further advantageous designs are claimed with the subclaims and explained in more detail below.
Demnach ist es weiterhin von Vorteil, wenn zusätzlich eine mit einem weiteren (dritten) Planetenradsatz ausgestattete oder eine Vorgelegestufe (umfassend eine Vorgelegewelle) bildende Übersetzungseinrichtung vorgesehen ist.Accordingly, it is also advantageous if, in addition, a translation device is provided which is equipped with a further (third) planetary gear set or forms a countershaft (comprising a countershaft).
In diesem Zusammenhang ist es zudem zweckmäßig, wenn zumindest eine mit einer (dritten) Kupplung und/oder einer (zweiten) Bremse ausgestattete Schalteinrichtung vorhanden ist, mittels welcher zumindest einen Schalteinrichtung ein erster Teilausgang eines den ersten Planetenradsatz aufweisenden ersten Teilgetriebes des Planetengetriebes oder ein zweiter Teilausgang eines den zweiten Planetenradsatz aufweisenden zweiten Teilgetriebes des Planetengetriebes unter Zusammenwirkung mit der Übersetzungseinrichtung mit einem Abtrieb verbindbar oder schaltbar ist. Dadurch ist es möglich unterschiedliche Ausführungen der Getriebeeinheit bauraumsparend umzusetzen.In this context, it is also expedient if there is at least one switching device equipped with a (third) clutch and / or a (second) brake, by means of which at least one switching device a first partial output of a first partial gear of the planetary gear having the first planetary gear set or a second Partial output of a second partial gearbox of the planetary gearbox having the second planetary gear set can be connected or switched to an output in cooperation with the transmission device. This makes it possible to implement different versions of the gear unit in a space-saving manner.
Hinsichtlich der Anbringung des ersten Trägers hat es sich zudem als vorteilhaft herausgestellt, wenn dieser zu zwei einander axial abgewandten Seiten aus den ersten Planetenrädern herausragt, wobei der erste Träger zu einer ersten axialen Seite (der ersten Planetenräder) mit der zweiten Antriebswelle verbunden ist und zu einer, der ersten axialen Seite abgewandten, zweiten axialen Seite (der ersten Planetenräder) mit der ersten Kupplung verbunden ist. Dadurch ergibt sich eine besonders kompakte Ausbildung des ersten Trägers.With regard to the attachment of the first carrier, it has also proven to be advantageous if it protrudes from the first planet gears on two axially facing sides, the first carrier being connected to the second drive shaft on a first axial side (the first planet gears) and to a second axial side facing away from the first axial side (the first planet gears) is connected to the first clutch. This results in a particularly compact design of the first carrier.
Auch ist es zweckmäßig, wenn die erste Kupplung sowie die zweite Kupplung in einer radialen Richtung und/oder in einer axialen Richtung in Bezug auf eine zentrale Drehachse der Getriebeeinheit zueinander versetzt angeordnet sind.It is also expedient if the first clutch and the second clutch are arranged offset to one another in a radial direction and / or in an axial direction with respect to a central axis of rotation of the gear unit.
Die erste Antriebswelle ist vorzugsweise permanent mit dem zweiten Träger verbunden oder wahlweise (vorzugsweise über eine Kupplung) mit dem zweiten Träger verbindbar.The first drive shaft is preferably permanently connected to the second carrier or optionally (preferably via a coupling) can be connected to the second carrier.
Des Weiteren ist es von Vorteil, wenn die mit dem ersten Sonnenrad zusammenwirkende (erste) Bremse als eine über einen Formschluss (z. B. über Klinken, Klauen, etc.) oder über einen Reibkraftschluss (vorzugsweise mittels eines Konus oder mehrerer Lamellen) wirkende Bremse ausgebildet ist. Dadurch lassen sich über die Bremse besonders hohe Momente abstützen.Furthermore, it is advantageous if the (first) brake interacting with the first sun gear acts as one via a form fit (e.g. via pawls, claws, etc.) or via a frictional engagement (preferably by means of a cone or several disks) Brake is formed. As a result, particularly high moments can be supported via the brake.
Des Weiteren betrifft die Erfindung einen (hybriden) Antriebsstrang für ein hybrides Kraftfahrzeug, mit einer erfindungsgemäßen Getriebeeinheit nach zumindest einer der zuvor beschriebenen Ausführungen sowie einer eine weitere (zweite) elektrische Maschine aufweisenden elektrischen Antriebsachse.Furthermore, the invention relates to a (hybrid) drive train for a hybrid motor vehicle, with a transmission unit according to the invention according to at least one of the embodiments described above and an electric drive axle having a further (second) electrical machine.
Diesbezüglich ist es auch von Vorteil, wenn die Antriebsachse an einer Hinterachse eingesetzt ist und die Getriebeeinheit an einer Vorderachse eingesetzt ist. Dadurch ergibt sich ein effizienter Allradantrieb. In this regard, it is also advantageous if the drive axle is used on a rear axle and the gear unit is used on a front axle. This results in efficient all-wheel drive.
Des Weiteren betrifft die Erfindung ein Verfahren zum Durchführen eines Gangwechsels mittels einer erfindungsgemäßen Getriebeeinheit nach zumindest einer der zuvor beschriebenen Ausführungen, wobei in einem ersten Gang (bspw. ein fünfter Gang der Getriebeeinheit) die erste Kupplung geschlossen ist sowie die mit dem ersten Sonnenrad zusammenwirkende (erste) Bremse geöffnet ist und in einem zweiten Gang (bspw. ein sechster Gang der Getriebeeinheit) die erste Kupplung geöffnet ist sowie die mit dem ersten Sonnenrad zusammenwirkende (erste) Bremse geschlossen ist, wobei ein durch die elektrische Maschine erzeugtes Generatormoment zunächst derart erhöht wird, dass ein an der ersten Kupplung anliegendes Gesamtmoment reduziert wird bis die erste Kupplung vollständig geöffnet ist und im Anschluss das Generatormoment derart gesteuert wird, dass eine Drehzahl des ersten Sonnenrades bis zu einem Stillstand des ersten Sonnenrades reduziert wird, wobei im Anschluss daran die mit dem ersten Sonnenrad zusammenwirkende (erste) Bremse vollständig geschlossen wird.Furthermore, the invention relates to a method for performing a gear change by means of a transmission unit according to the invention according to at least one of the embodiments described above, the first clutch being engaged in a first gear (for example a fifth gear of the transmission unit) and the one that interacts with the first sun gear ( first) brake is open and in a second gear (for example a sixth gear of the transmission unit) the first clutch is open and the (first) brake cooperating with the first sun gear is closed, a generator torque generated by the electric machine initially being increased in this way that a total torque applied to the first clutch is reduced until the first clutch is fully open and then the generator torque is controlled in such a way that a speed of the first sun gear is reduced until the first sun gear comes to a standstill; first Sonnenra d cooperating (first) brake is fully closed.
Zudem betrifft die Erfindung ein weiteres Verfahren zum Durchführen eines Gangwechsels mittels einer erfindungsgemäßen Getriebeeinheit nach zumindest einer der zuvor beschriebenen Ausführungen und/oder eines Antriebsstranges nach zumindest einer der zuvor beschriebenen Ausführungen, wobei in einem ersten Gang (bspw. ein sechster Gang der Getriebeeinheit) und in einem zweiten Gang (bspw. ein siebter Gang der Getriebeeinheit) die erste Kupplung und die zweite Kupplung geschlossen sind, während die mit dem ersten Sonnenrad zusammenwirkende (erste) Bremse in dem ersten Gang geschlossen ist und in dem zweiten Gang geöffnet ist, wobei ein durch die elektrische Maschine erzeugtes Generatormoment zunächst derart erhöht wird, dass ein an der mit dem ersten Sonnenrad zusammenwirkenden (ersten) Bremse anliegendes Moment reduziert wird, bis die mit dem ersten Sonnenrad zusammenwirkende (erste) Bremse lastfrei ist, wobei die mit dem ersten Sonnenrad zusammenwirkende (erste) Bremse daraufhin geöffnet wird und im Anschluss das Generatormoment derart gesteuert wird, dass eine Drehzahl eines Verbrennungsmotors gezielt eingestellt / gesteuert wird.In addition, the invention relates to a further method for performing a gear change by means of a transmission unit according to the invention according to at least one of the previously described designs and / or a drive train according to at least one of the previously described designs, wherein in a first gear (for example a sixth gear of the gear unit) and in a second gear (e.g. a seventh gear of the transmission unit) the first clutch and the second clutch are closed, while the (first) brake cooperating with the first sun gear is closed in the first gear and is open in the second gear, wherein a Generator torque generated by the electric machine is initially increased such that a torque applied to the (first) brake cooperating with the first sun gear is reduced until the (first) brake interacting with the first sun gear is load-free, the one interacting with the first sun gear Then (first) brake open t and the generator torque is then controlled in such a way that a rotational speed of an internal combustion engine is set / controlled in a targeted manner.
In anderen Worten ausgedrückt, ist somit erfindungsgemäß ein 6-Gang-Planeten-DHT (Dediziertes Hybridgetriebe als 6-Gang-Ausführung) realisiert. Erfindungsgemäß weist das Hybridgetriebe (Getriebeeinheit) eine erste Eingangswelle (ersten Antriebswelle) und eine zweite Eingangswelle (zweite Antriebswelle), eine erste Kupplung, eine zweite Kupplung, einen ersten Planetenradsatz mit einem ersten Sonnenrad, einem ersten Hohlrad und einem ersten Träger, einen zweiten Planetenradsatz mit einem zweiten Sonnenrad, einem zweiten Hohlrad und einem zweiten Träger sowie eine erste Bremse auf. Die zweite Eingangswelle ist mit der ersten Eingangswelle durch die erste Kupplung verbindbar. Ein erster Teilausgang ist durch eine Verbindung des zweiten Sonnenrades und des ersten Hohlrades gebildet. Ein zweiter Teilausgang ist durch das zweite Hohlrad gebildet. Die zweite Kupplung dient zum Verblocken des ersten Planetenradsatzes oder des zweiten Planetenradsatzes mit beispielsweise dem ersten Sonnenrad und dem ersten Hohlrad. Die erste Bremse dient zum Blockieren des ersten Sonnenrades. Der erste Träger ist mit einer elektrischen Maschine verbunden. Eine feste oder lösbare Verbindung ist zwischen einer Eingangsseite (Eingang) und dem zweiten Träger vorgesehen. Des Weiteren weist das Hybridgetriebe Übersetzungseinrichtungen auf, die eine weitere Planetenradstufe oder ein Vorgelege sowie eine weitere (dritte) Kupplung zum Koppeln / Entkoppeln des ersten Teilausgangs oder des zweiten Teilausgangs mit/von einem Abtrieb aufweisen.In other words, a 6-speed planetary DHT (dedicated hybrid transmission as a 6-speed version) is thus implemented according to the invention. According to the invention, the hybrid transmission (transmission unit) has a first input shaft (first drive shaft) and a second input shaft (second drive shaft), a first clutch, a second clutch, a first planetary gear set with a first sun gear, a first ring gear and a first carrier, and a second planetary gear set with a second sun gear, a second ring gear and a second carrier and a first brake. The second input shaft can be connected to the first input shaft by the first clutch. A first partial output is formed by a connection of the second sun gear and the first ring gear. A second partial output is formed by the second ring gear. The second clutch is used to block the first planetary gear set or the second planetary gear set with, for example, the first sun gear and the first ring gear. The first brake is used to lock the first sun gear. The first carrier is connected to an electrical machine. A fixed or detachable connection is provided between an input side (input) and the second carrier. Furthermore, the hybrid transmission has transmission devices which have a further planetary gear stage or a countershaft and a further (third) clutch for coupling / decoupling the first partial output or the second partial output with / from an output.
Die Erfindung wird nun nachfolgend anhand von Figuren näher erläutert.The invention will now be explained in more detail with reference to figures.
Es zeigen:
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1 eine schematische Längsschnittdarstellung einer erfindungsgemäßen Getriebeeinheit nach einem ersten Ausführungsbeispiel, -
2 eine schematische Darstellung der Getriebeeinheit nach1 , mit der die Wirkverbindung der einzelnen Bestandteile der Getriebeeinheit gut zu erkennen ist, -
3 eine schematische Längsschnittdarstellung einer erfindungsgemäßen Getriebeeinheit nach einem zweiten Ausführungsbeispiel, die sich von dem ersten Ausführungsbeispiel insbesondere durch die Positionierung einer elektrischen Maschine sowie eines ersten Planetenradsatzes relativ zu einem zweiten Planetenradsatz unterscheidet, -
4 eine schematische Längsschnittdarstellung einer erfindungsgemäßen Getriebeeinheit nach einem dritten Ausführungsbeispiel, die sich von dem ersten Ausführungsbeispiel insbesondere hinsichtlich der Ausbildung und Anordnung einer dritten Planetenradstufe unterscheidet, -
5 eine schematische Längsschnittdarstellung einer erfindungsgemäßen Getriebeeinheit nach einem vierten Ausführungsbeispiel, in der die elektrische Maschine wiederum auf eine andere Weise an die beiden ersten und zweiten Kupplungen der Getriebeeinheit angebunden ist, -
6 eine schematische Längsschnittdarstellung einer erfindungsgemäßen Getriebeeinheit nach einem fünften Ausführungsbeispiel, wobei zwei Kupplungen der Getriebeeinheit nun auf axial einander abgewandten Seiten des ersten Planetenradsatzes angeordnet sind, -
7 eine schematische Längsschnittdarstellung einer erfindungsgemäßen Getriebeeinheit nach einem sechsten Ausführungsbeispiel, wobei statt eines weiteren dritten Planetenradsatzes eine Vorgelegestufe vorhanden ist, -
8 eine schematische Darstellung der Getriebeeinheit nach7 zur Veranschaulichung der Wirkverbindung der einzelnen Bestandteile der Getriebeeinheit, -
9 eine schematische Längsschnittdarstellung einer erfindungsgemäßen Getriebeeinheit nach einem siebten Ausführungsbeispiel, die sich im Wesentlichen von dem sechsten Ausführungsbeispiel durch Ausbilden und Anordnen der Vorgelegestufe unterscheidet, -
10 ein beispielhafter Drehmomentenverlauf der elektrischen Maschine zum Umschalten zwischen einem fünften und einem sechsten Gang, -
11 ein beispielhafter Drehmomentenverlauf der elektrischen Maschine zum Umschalten zwischen einem sechsten und einem siebten Gang, sowie -
12 ein beispielhafter Drehmomentenverlauf der elektrischen Maschine zum Veranschaulichen eines Zustandes eines Kraftfahrzeuges bei einem Standladen sowie einem Anfahren.
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1 2 shows a schematic longitudinal sectional illustration of a transmission unit according to the invention according to a first exemplary embodiment, -
2nd is a schematic representation of thegear unit 1 , with which the operative connection of the individual components of the gear unit can be clearly seen, -
3rd 2 shows a schematic longitudinal sectional illustration of a transmission unit according to the invention according to a second exemplary embodiment, which differs from the first exemplary embodiment in particular by the positioning of an electrical machine and a first planetary gear set relative to a second planetary gear set, -
4th 2 shows a schematic longitudinal sectional illustration of a transmission unit according to the invention according to a third exemplary embodiment, which differs from the first exemplary embodiment in particular with regard to the design and arrangement of a third planetary gear stage, -
5 2 shows a schematic longitudinal sectional illustration of a transmission unit according to the invention according to a fourth exemplary embodiment, in which the electrical machine is in turn connected in a different way to the two first and second clutches of the transmission unit, -
6 2 shows a schematic longitudinal sectional view of a transmission unit according to the invention according to a fifth exemplary embodiment, two clutches of the transmission unit now being arranged on axially facing sides of the first planetary gear set, -
7 2 shows a schematic longitudinal sectional illustration of a transmission unit according to the invention according to a sixth exemplary embodiment, a countershaft being present instead of a further third planetary gear set, -
8th is a schematic representation of thegear unit 7 to illustrate the operative connection of the individual components of the gear unit, -
9 2 shows a schematic longitudinal sectional illustration of a transmission unit according to the invention according to a seventh exemplary embodiment, which essentially differs from the sixth exemplary embodiment in that the countershaft stage is designed and arranged, -
10th an exemplary torque curve of the electrical machine for switching between a fifth and a sixth gear, -
11 an exemplary torque curve of the electrical machine for switching between a sixth and a seventh gear, and -
12 an exemplary torque curve of the electrical machine to illustrate a state of a motor vehicle with a stall and a start.
Die Figuren sind lediglich schematischer Natur und dienen ausschließlich dem Verständnis der Erfindung. Die gleichen Elemente sind mit denselben Bezugszeichen versehen. Auch sind die unterschiedlichen Merkmale der verschiedenen Ausführungsbeispiele prinzipiell frei miteinander kombinierbar.The figures are only schematic in nature and serve only to understand the invention. The same elements are provided with the same reference symbols. In principle, the different features of the different exemplary embodiments can also be freely combined with one another.
In Verbindung mit den
Die Getriebeeinheit
Die Getriebeeinheit
Das erste Hohlrad
Das zweite Teilgetriebe weist wiederum einen zweiten Planetenradsatz
Neben der ersten Antriebswelle
In
Radial außerhalb der ersten Kupplung
Des Weiteren ist eine Übersetzungseinrichtung
Ein die dritten Planetenräder
Das zweite Ausführungsbeispiel nach
In dem dritten Ausführungsbeispiel nach
In dem vierten Ausführungsbeispiel nach
Gemäß dem fünften Ausführungsbeispiel der
Mit den
Ein noch kompakterer Aufbau der Getriebeeinheit
In anderen Worten ausgedrückt, ist somit erfindungsgemäß ein Hybridgetriebe
Das Hybridgetriebe
Folgende Fahrfunktionen sind dabei gemäß
Zwei konkrete Übersetzungsbeispiele sind in den
In Verbindung mit den
Hierbei ist mit
Ein weiterer Vorteil des erfindungsgemäßen Getriebes
Ein weiterer Vorteil des erfindungsgemäßen Getriebes
BezugszeichenlisteReference symbol list
- 11
- GetriebeeinheitGear unit
- 22nd
- erste Antriebswellefirst drive shaft
- 33rd
- elektrische Maschineelectrical machine
- 44th
- zweite Antriebswellesecond drive shaft
- 55
- PlanetengetriebePlanetary gear
- 66
- erster Planetenradsatzfirst planetary gear set
- 77
- zweiter Planetenradsatzsecond planetary gear set
- 88th
- erstes Hohlradfirst ring gear
- 99
- erstes Sonnenradfirst sun gear
- 1010th
- erster Trägerfirst carrier
- 1111
- erstes Planetenradfirst planet gear
- 1212
- zweites Hohlradsecond ring gear
- 1313
- zweites Sonnenradsecond sun gear
- 1414
- zweiter Trägersecond carrier
- 1515
- zweites Planetenradsecond planet gear
- 1616
- erste Kupplungfirst clutch
- 1717th
- zweite Kupplungsecond clutch
- 1818th
- erste Bremsefirst brake
- 1919th
- dritter Planetenradsatzthird planetary gear set
- 2020th
- VorgelegestufeTransmission stage
- 2121st
- ÜbersetzungseinrichtungTranslation facility
- 2222
- dritte Kupplungthird clutch
- 2323
- zweite Bremsesecond brake
- 2424th
- SchalteinrichtungSwitching device
- 2525th
- erster Teilausgangfirst partial exit
- 2626
- zweiter Teilausgangsecond partial exit
- 2727th
- AbtriebDownforce
- 2828
- Eingangentrance
- 2929
- DrehachseAxis of rotation
- 3030th
- AntriebsstrangPowertrain
- 31 31
- drittes Planetenradthird planet gear
- 3232
- drittes Sonnenradthird sun gear
- 3333
- drittes Hohlradthird ring gear
- 3434
- dritter Trägerthird carrier
- 3535
- VorgelegewelleCountershaft
- 36a36a
- erste Zahnradstufefirst gear stage
- 36b36b
- zweite Zahnradstufesecond gear stage
- 3737
- BereichArea
- 3838
- vierte Kupplungfourth clutch
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 documents listed by the applicant has been generated automatically and is only included 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 PatentliteraturPatent literature cited
- DE 102016224458 A1 [0002]DE 102016224458 A1 [0002]
- DE 102017204970 B3 [0002]DE 102017204970 B3 [0002]
- DE 102017008275 A1 [0002]DE 102017008275 A1 [0002]
- DE 102016222220 A1 [0002]DE 102016222220 A1 [0002]
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018130784.5A DE102018130784A1 (en) | 2018-12-04 | 2018-12-04 | Gear unit for a hybrid motor vehicle with planetary gear; Drive train and method for performing a gear change |
CN201911227354.9A CN111267602A (en) | 2018-12-04 | 2019-12-04 | Transmission unit, drive train and method for executing a gear shift for a hybrid vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018130784.5A DE102018130784A1 (en) | 2018-12-04 | 2018-12-04 | Gear unit for a hybrid motor vehicle with planetary gear; Drive train and method for performing a gear change |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102018130784A1 true DE102018130784A1 (en) | 2020-06-04 |
Family
ID=70680745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018130784.5A Withdrawn DE102018130784A1 (en) | 2018-12-04 | 2018-12-04 | Gear unit for a hybrid motor vehicle with planetary gear; Drive train and method for performing a gear change |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN111267602A (en) |
DE (1) | DE102018130784A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11035441B2 (en) * | 2016-12-08 | 2021-06-15 | Bayerische Motoren Werke Aktiengesellschaft | 6-speed planetary transmission |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016222220A1 (en) | 2016-12-03 | 2018-06-07 | Zf Friedrichshafen Ag | Transmission for a motor vehicle, and powertrain for a motor vehicle |
DE102016224458A1 (en) | 2016-12-08 | 2018-06-14 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle transmission planetary gear sets with the same level translation |
DE102017008275A1 (en) | 2017-09-04 | 2018-08-09 | Daimler Ag | Multi-step transmission for a motor vehicle, in particular for an electric or hybrid vehicle |
DE102017204970B3 (en) | 2017-03-24 | 2018-08-23 | Bayerische Motoren Werke Aktiengesellschaft | Combined multi-stage hybrid transmission |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005014332A1 (en) * | 2005-03-24 | 2006-09-28 | Volkswagen Ag | Powertrain of a motor vehicle |
DE102007005438A1 (en) * | 2007-02-03 | 2008-08-21 | Zf Friedrichshafen Ag | Multi-speed planetary coupling gearbox |
DE102014204009A1 (en) * | 2014-03-05 | 2015-09-10 | Schaeffler Technologies AG & Co. KG | Multi-speed planetary gear system as a component of the drive train of a motor vehicle |
DE102014220820A1 (en) * | 2014-09-17 | 2016-03-17 | Zf Friedrichshafen Ag | Power-shiftable multi-speed transmission in planetary design |
DE102014221600B3 (en) * | 2014-10-23 | 2016-03-10 | Schaeffler Technologies AG & Co. KG | Transmission structure for a hybrid drive of a motor vehicle and hybrid drive |
DE102016101061A1 (en) * | 2016-01-21 | 2017-07-27 | Volkswagen Aktiengesellschaft | Gear arrangement for a motor vehicle and motor vehicle |
-
2018
- 2018-12-04 DE DE102018130784.5A patent/DE102018130784A1/en not_active Withdrawn
-
2019
- 2019-12-04 CN CN201911227354.9A patent/CN111267602A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016222220A1 (en) | 2016-12-03 | 2018-06-07 | Zf Friedrichshafen Ag | Transmission for a motor vehicle, and powertrain for a motor vehicle |
DE102016224458A1 (en) | 2016-12-08 | 2018-06-14 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle transmission planetary gear sets with the same level translation |
DE102017204970B3 (en) | 2017-03-24 | 2018-08-23 | Bayerische Motoren Werke Aktiengesellschaft | Combined multi-stage hybrid transmission |
DE102017008275A1 (en) | 2017-09-04 | 2018-08-09 | Daimler Ag | Multi-step transmission for a motor vehicle, in particular for an electric or hybrid vehicle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11035441B2 (en) * | 2016-12-08 | 2021-06-15 | Bayerische Motoren Werke Aktiengesellschaft | 6-speed planetary transmission |
Also Published As
Publication number | Publication date |
---|---|
CN111267602A (en) | 2020-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |