DE102011118097B4 - Device and method for driving a vehicle - Google Patents
Device and method for driving a vehicle Download PDFInfo
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- DE102011118097B4 DE102011118097B4 DE102011118097.8A DE102011118097A DE102011118097B4 DE 102011118097 B4 DE102011118097 B4 DE 102011118097B4 DE 102011118097 A DE102011118097 A DE 102011118097A DE 102011118097 B4 DE102011118097 B4 DE 102011118097B4
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/46—Series type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
- F16H2037/101—Power split variators with one differential at each end of the CVT
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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
- 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
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
- F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Vorrichtung zum Antrieb eines Fahrzeuges mit einer Verbrennungskraftmaschine (VKM), einem Compound-Split-Getriebe und einer Batterie, wobei das Compound-Split-Getriebe eine erste elektrische Maschine (EM1), eine zweite elektrische Maschine (EM2), ein erstes Planetengetriebe und ein zweites Planetengetriebe umfasst, wobei die Verbrennungskraftmaschine (VKM), die erste elektrische Maschine (EM1) und die zweite elektrische Maschine (EM2) über das erste und das zweite Planetengetriebe mit den Rädern einer ersten Achse des Fahrzeuges antriebsverbunden sind, wobei eine weitere Achse des Fahrzeuges mit einer dritten elektrischen Maschine (EM3) oder mehreren elektrischen Maschinen antriebsverbunden ist, wobei mittels einer ersten Kupplung die erste Achse des Fahrzeuges von dem ersten und dem zweiten Planetengetriebe getrennt werden kann, so dass mittels der dritten elektrischen Maschine (EM3) oder den mehreren elektrischen Maschinen die weitere Achse des Fahrzeuges angetrieben werden kann, die nicht mit dem Compound-Split-Getriebe in Antriebsverbindung steht, so dass der Anfahrbereich abgedeckt wird, wobei die erste Achse, die mit dem Compound-Split-Getriebe in Antriebsverbindung steht, während des Anfahrbereiches nicht das Fahrzeug antreibt und der Antrieb des Fahrzeuges erst dann von der ersten Achse übernommen werden kann, wenn das Compound-Split-Getriebe mit einem günstigen Wirkungsgrad betrieben werden kann.Device for driving a vehicle with an internal combustion engine (VKM), a compound-split transmission and a battery, wherein the compound-split transmission, a first electric machine (EM1), a second electric machine (EM2), a first planetary gear and a second planetary gear, wherein the internal combustion engine (VKM), the first electric machine (EM1) and the second electric machine (EM2) are drivingly connected via the first and the second planetary gear to the wheels of a first axis of the vehicle, wherein a further axis of the vehicle is drivingly connected to a third electric machine (EM3) or a plurality of electric machines, wherein by means of a first clutch, the first axis of the vehicle from the first and the second planetary gear can be separated, so that by means of the third electric machine (EM3) or the plurality of electric Machines the other axis of the vehicle can be driven, d ie, it is not in drive connection with the compound-split transmission, so that the starting range is covered, wherein the first axis, which is in drive connection with the compound-split transmission, does not drive the vehicle during the starting range and the drive of the vehicle does not can then be adopted from the first axis, if the compound-split transmission can be operated with a favorable efficiency.
Description
Die vorliegende Erfindung betrifft eine Vorrichtung und ein Verfahren zum Antrieb eines Fahrzeuges mit den Merkmalen der unabhängigen Patentansprüche.The present invention relates to a device and a method for driving a vehicle with the features of the independent claims.
Beispielsweise aus dem Fachbuch „Hybridfahrzeuge: Ein alternatives Antriebskonzept für die Zukunft”, Peter Hofmann, 2010 Springer-Verlag, Wien, ist als effizienter Antrieb eines Fahrzeuges ein so genannter „leistungsverzweigter Hybrid” vorbekannt. Hierbei wird durch eine Zusammenschaltung von einer Verbrennungskraftmaschine, zwei Planetengetrieben und zwei elektrischen Maschinen, die als Generator oder Motor arbeiten können und die mit einem elektrischen Speicher verbunden sind, ein so genanntes „Compound-Split-Getriebe” gebildet. Mittels eines solchen Getriebes kann gegenüber einem „leistungsverzweigten Hybrid” mit nur einem Planetengetriebe der Anteil an Energie vermindert werden, der vom mechanischen über den elektrischen Pfad im Getriebe nutzlos zirkuliert. Dennoch besteht auch bei einem „Compound-Split-Getriebe” der Nachteil, dass es nicht möglich ist, die Leistungsaufteilung über den gesamten Übersetzungsbereich günstig zu gestalten, so dass noch immer nicht der gewünschte Getriebewirkungsgrad erreicht wird. Insbesondere kann der Anfahrbereich nicht sinnvoll durch ein „Compound-Split-Getriebe” dargestellt werden, da hier eine sehr hohe Getriebeübersetzung erforderlich ist. Um eine derart hohe Getriebeübersetzung zu erreichen, könnten die elektrischen Maschinen derart ausgelegt werden, dass ihnen eine sehr große Menge an elektrischer Leistung zugeführt werden kann bzw. stellt der elektrische Speicher ein Problem dar, da die gesamte Leistung für das Betreiben der elektrischen Maschinen auch zur Verfügung gestellt werden muss. Anders gesagt müssen die elektrischen Maschinen und der elektrische Speicher nur zur Abdeckung des Anfahrbereiches sehr üppig dimensioniert werden, was natürlich unerwünscht höhere Kosten und Mehrgewicht zur Folge hat. Um diesem Nachteil eines „Compound-Split-Getriebes” zu begegnen, ist es weiterhin aus dem genannten Fachbuch vorbekannt, das „Compound-Split-Getriebe” um Schaltelemente zu erweitern, so dass ein „Dual-Mode-Getriebe” gebildet wird. Insbesondere wird dabei der Anfahrbereich mittels einer zusätzlichen Übersetzungsstufe abgebildet. Jedenfalls wird durch den Einsatz eines „Dual-Mode-Getriebes” das gesamte Getriebe komplexer und schwerer, was einerseits die Fertigung verteuert und in gewissen Grenzen die Gewichtsverteilung des Fahrzeuges negativ beeinflusst. Gemäß der
Diese Aufgabe wird erfindungsgemäß mittels einer Vorrichtung zum Antrieb eines Fahrzeuges mit einer Verbrennungskraftmaschine, einer ersten elektrischen Maschine, einer zweiten elektrischen Maschine, einem ersten Planetengetriebe, einem zweiten Planetengetriebe und einer Batterie gelöst, wobei die Verbrennungskraftmaschine, die erste elektrische Maschine und die zweite elektrische Maschine über das erste und das zweite Planetengetriebe mit den Rädern einer ersten Achse des Fahrzeuges antriebsverbunden sind, wobei eine weitere Achse des Fahrzeuges mit einer dritten elektrischen Maschine antriebsverbunden ist, wobei mittels einer ersten Kupplung die erste Achse des Fahrzeuges von dem ersten und dem zweiten Planetengetriebe getrennt werden kann, wobei mittels einer zweiten Kupplung die beiden Planetengetriebe derart blockiert werden können, dass diese als feste Übersetzung zwischen der Verbrennungskraftmaschine, der ersten und der zweiten elektrischen Maschine wirken. Erfindungsgemäß können so die elektrischen Maschinen, die innerhalb des „Compound-Split-Getriebes” mit den Planetengetrieben verbunden sind sowie der elektrische Speicher, leistungsklein und somit kostengünstig und leicht ausgelegt werden. Außerdem bleibt die mechanische einfache Struktur des „Compound-Split-Getriebes” erhalten und somit sind die Freiheitsgrade dieses Getriebes im Vergleich zu einem „Dual-Mode-Getriebe” relativ einfach, was sich positiv auf den Entwicklungsaufwand in Konstruktion und Steuerung/Regelung widerspiegelt. Mittels der dritten elektrischen Maschine oder mehreren elektrischen Maschinen, die nicht unmittelbar mit den elektrischen Maschinen des „Compound-Split-Getriebes” in Verbindung stehen, kann erfindungsgemäß die Achse eines Fahrzeuges angetrieben werden, die nicht mit dem „Compound-Split-Getriebe” in Antriebsverbindung steht, so dass insbesondere der Anfahrbereich abgedeckt wird, wobei die Achse, die mit dem „Compound-Split-Getriebe” in Antriebsverbindung steht, während des Anfahrbereiches nicht das Fahrzeug antreibt. Der Antrieb des Fahrzeuges wird erfindungsgemäß erst dann von der Achse übernommen, welche mit dem „Compound-Split-Getriebe” in Antriebsverbindung steht, wenn das „Compound-Split-Getriebe” mit einem günstigen Wirkungsgrad betrieben werden kann. Erfindungsgemäß kann positiv auf die Gewichtsverteilung des Fahrzeuges Einfluss genommen werden, da das verwendete „Compound-Split-Getriebe” nicht größer und schwerer wird, da keine zusätzliche Übersetzung für den Anfahrbereich vorgesehen werden muss, sondern vielmehr dadurch eine bessere Gewichtsverteilung in dem Fahrzeug erreicht wird, dass eine dritte elektrische Maschine auf der dem „Compound-Split-Getriebe” gegenüberliegenden Achse angeordnet wird. Ferner ist erfindungsgemäß auf denkbar einfache Art und Weise ein Allradantrieb eines Fahrzeuges realisierbar bzw. können erfindungsgemäß auch zwei elektrische Maschinen auf der dem „Compound-Split-Getriebe” gegenüberliegenden weiteren Achse angeordnet werden, um z. B. Torque-Vectoring als fahrdynamische Massnahme darzustellen.This object is achieved by means of a device for driving a vehicle with an internal combustion engine, a first electric machine, a second electric machine, a first planetary gear, a second planetary gear and a battery, wherein the internal combustion engine, the first electric machine and the second electric machine via the first and second planetary gears are drivingly connected to the wheels of a first axis of the vehicle, wherein a further axis of the vehicle is drivingly connected to a third electric machine, wherein separated by means of a first clutch, the first axis of the vehicle from the first and the second planetary gear can be, whereby by means of a second clutch, the two planetary gear can be blocked so that they act as a fixed ratio between the internal combustion engine, the first and the second electric machine. According to the invention, the electric machines which are connected to the planetary gear mechanisms within the "compound-split transmission" and the electric storage can be designed to be low-power and therefore cost-effective and lightweight. In addition, the mechanical simple structure of the "compound-split" transmission is maintained and thus the degrees of freedom of this transmission compared to a "dual-mode transmission" are relatively simple, which is reflected positively in the development effort in design and control / regulation. By means of the third electric machine or a plurality of electrical machines, which are not directly connected to the electric machines of the "compound-split transmission", according to the invention, the axis of a vehicle can be driven, not with the "compound-split transmission" in Drive connection is, so that in particular the starting range is covered, the axis, which is in drive connection with the "compound split transmission", does not drive the vehicle during the starting range. The drive of the vehicle according to the invention is then taken over by the axle, which is in drive connection with the "compound-split transmission" when the "compound-split transmission" can be operated with a favorable efficiency. According to the invention can be positively influenced on the weight distribution of the vehicle, since the compound-split transmission used is not larger and heavier, since no additional translation for the starting range must be provided, but rather thereby a better weight distribution is achieved in the vehicle in that a third electric machine is arranged on the axis opposite the compound-split transmission. Furthermore, an all-wheel drive of a vehicle can be realized according to the invention in a conceivably simple manner or, according to the invention, two electric machines can also be arranged on the further axle opposite the "compound-split" transmission, in order, for. B. represent torque vectoring as a driving dynamics measure.
Weitere vorteilhafte Ausgestaltungen der vorliegenden Erfindung sind den unabhängigen Patentansprüchen und dem folgenden Ausführungsbeispiel zu entnehmen.Further advantageous embodiments of the present invention can be taken from the independent patent claims and the following exemplary embodiment.
Hierbei zeigen:Hereby show:
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Wie in
In einer Ausführung der vorliegenden Erfindung gemäß
Wie in
Natürlich kann die dritte elektrische Maschine auch zur Rekuperation, verwendet werden, d. h. beispielsweise im Schubbetrieb des Fahrzeuges bzw. beim Abbremsen des Fahrzeuges wird dazu die dritte elektrische Maschine EM3 in Abhängigkeit der Betätigung des Bremspedals des Fahrzeuges generatorisch betrieben, so dass elektrische Energie von der dritten elektrischen Maschine EM3 zu der Leistungselektronik und von dort zur Batterie geliefert werden kann. Eine Rekuperation im leistungsverzweigten Betriebsmodus kann systembedingt nicht möglich sein, so dass beim Rekuperieren entweder in den rein elektrischen oder seriellen Betriebsmodus gewechselt werden muss.Of course, the third electric machine can also be used for recuperation, d. H. For example, in overrun operation of the vehicle or when braking the vehicle to the third electric machine EM3 is operated as a function of the operation of the brake pedal of the vehicle as a generator, so that electrical energy can be supplied from the third electric machine EM3 to the power electronics and from there to the battery , A recuperation in the power-split mode of operation may not be possible due to the system, so that when recuperating either the purely electrical or serial mode of operation must be changed.
Erfindungsgemäß kann im leistungsverzweigten Betriebsmodus für eine Traktionsunterstützung ein bedarfsgerechtes Allradmanagement erfolgen, wobei die Verbrennungskraftmaschine VKM motorisch, die erste elektrischen Maschine EM1 generatorisch, die zweite elektrische Maschine EM2 generatorisch oder motorisch und die dritte elektrische Maschine EM3 motorisch betrieben wird.According to the invention, a demand-oriented all-wheel management can be carried out in the power-split operating mode for traction assistance, the internal combustion engine VKM being driven by a motor, the first electric machine EM1 being regenerated, the second
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Claims (3)
Priority Applications (1)
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DE102011118097B4 true DE102011118097B4 (en) | 2017-04-27 |
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Citations (5)
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DE102005021575A1 (en) * | 2004-05-20 | 2005-12-15 | Toyota Jidosha K.K., Toyota | Hybrid drive unit for vehicles |
JP2008030708A (en) * | 2006-07-31 | 2008-02-14 | Toyota Motor Corp | Drive system |
DE102007056407A1 (en) * | 2006-11-28 | 2008-06-26 | GM Global Technology Operations, Inc., Detroit | Input brake, which provides a purely electrical fixed translation |
DE102008022797A1 (en) * | 2007-05-11 | 2008-12-11 | GM Global Technology Operations, Inc., Detroit | Hybrid powertrain with a machine input clutch and control method |
DE102010027519A1 (en) * | 2009-07-22 | 2011-04-07 | GM Global Technology Operations, Inc., Detroit | Multi-speed transmission with multi-axis transmission |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005021575A1 (en) * | 2004-05-20 | 2005-12-15 | Toyota Jidosha K.K., Toyota | Hybrid drive unit for vehicles |
JP2008030708A (en) * | 2006-07-31 | 2008-02-14 | Toyota Motor Corp | Drive system |
DE102007056407A1 (en) * | 2006-11-28 | 2008-06-26 | GM Global Technology Operations, Inc., Detroit | Input brake, which provides a purely electrical fixed translation |
DE102008022797A1 (en) * | 2007-05-11 | 2008-12-11 | GM Global Technology Operations, Inc., Detroit | Hybrid powertrain with a machine input clutch and control method |
DE102010027519A1 (en) * | 2009-07-22 | 2011-04-07 | GM Global Technology Operations, Inc., Detroit | Multi-speed transmission with multi-axis transmission |
Non-Patent Citations (1)
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HOFMANN, Peter: Hybridfahrzeuge. Wien: Springer-Verlag, 2010. - ISBN 978-3-211-89190-2 * |
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