DE102010009113A1 - Power-branched gear box for motor vehicle, has gear box input shaft, gear box output shaft, mechanical power path and hydraulic power path, where planetary gear divides torque on mechanical power path and hydraulic power path - Google Patents
Power-branched gear box for motor vehicle, has gear box input shaft, gear box output shaft, mechanical power path and hydraulic power path, where planetary gear divides torque on mechanical power path and hydraulic power path Download PDFInfo
- Publication number
- DE102010009113A1 DE102010009113A1 DE102010009113A DE102010009113A DE102010009113A1 DE 102010009113 A1 DE102010009113 A1 DE 102010009113A1 DE 102010009113 A DE102010009113 A DE 102010009113A DE 102010009113 A DE102010009113 A DE 102010009113A DE 102010009113 A1 DE102010009113 A1 DE 102010009113A1
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- Germany
- Prior art keywords
- power path
- hydraulic
- gear box
- hydraulic power
- torque
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
-
- 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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
- F16H61/4096—Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
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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
- F16H37/0833—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 with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—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 with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H2037/0866—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
Description
Erfindung betrifft ein leistungsverzweigtes Getriebe für ein Kraftfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a power split transmission for a motor vehicle according to the preamble of
Die gattungsgemäße Schrift
Der hydraulische Leitungspfad verfügt über eine hydrostatische Primärmaschine mit variablem Schluckvolumen und zwei hydrostatische Sekundärmaschinen mit variablem Schluckvolumen.The hydraulic line path has a hydrostatic primary machine with variable displacement and two secondary hydrostatic machines with variable displacement.
Über eine Veränderung des Schluckvolumens der hydrostatischen Primärmaschine und der Schluckvolumen der hydrostatischen Sekundärmaschinen ist der Anteil des Drehmomentes, der über den hydraulischen Leistungspfad übertragen wird, steuerbar und damit auch die Drehgeschwindigkeit der Getriebeausgangswelle. Das Getriebe übersetzt so stufenlos von der Getriebeeingangeswelle zur Getriebeausgangswelle.By changing the absorption volume of the hydrostatic primary machine and the displacement of the hydrostatic secondary machinery, the proportion of the torque which is transmitted via the hydraulic power path, controllable and thus the rotational speed of the transmission output shaft. The transmission translates so continuously from the transmission input shaft to the transmission output shaft.
Dem gegenüber ist es die Aufgabe der Erfindung, ein leistungsverzweigtes Getriebe für ein Kraftfahrzeug vorzuschlagen, bei dem Rekuperation möglich ist.In contrast, it is the object of the invention to propose a power-split transmission for a motor vehicle, in which recuperation is possible.
Erfindungsgemäß wird die Aufgabe durch ein leistungsverzweigtes Getriebe für ein Kraftfahrzeug mit den Merkmalen des Anspruchs 1 gelöst.According to the invention the object is achieved by a power-split transmission for a motor vehicle having the features of
Erfindungsgemäß verfügt ein leistungsverzweigtes Getriebe für ein Kraftfahrzeug über einen Energiespeicher im hydraulischen Leistungspfad.According to the invention, a power-split transmission for a motor vehicle has an energy store in the hydraulic power path.
Der Energiespeicher speichert Energie, die bei Rekuperation dem hydraulischen Leistungspfad entnommen wird.The energy storage stores energy that is taken from the hydraulic power path during recuperation.
In einer vorteilhaften Weiterbildung zeichnet sich das leistungsverzweigte Getriebe dadurch aus, dass der Energiespeicher im hydraulischen Leistungspfad als ein Druckbehälter ausgestaltet ist.In an advantageous development, the power-split transmission is characterized in that the energy store in the hydraulic power path is designed as a pressure vessel.
Im hydraulischen Leistungspfad wird der zweite Anteil des Drehmomentes durch Hydraulikflüssigkeit übertragen. Im hydraulischen Leistungspfad ist die Antriebsenergie des Drehmomentes erst vom Drehmoment in Hydraulikdruck und dann von Hydraulikdruck in Drehmoment umgeformt. Zur Rekuperation ist eine Energiespeicherung im hydraulischen Leistungspfad direkt durch Speicherung des Hydraulikdrucks im Druckbehälter vorteilhaft. Eine Druckspeicherung ist bei hohen Drücken, die zwischen der hydrostatischen Primärmaschine und den beiden hydrostatischen Sekundärmaschinen wirken, sehr effizient.In the hydraulic power path, the second portion of the torque is transmitted by hydraulic fluid. In the hydraulic power path, the driving energy of the torque is first converted from the torque in hydraulic pressure and then from hydraulic pressure to torque. For recuperation energy storage in the hydraulic power path directly by storing the hydraulic pressure in the pressure vessel is advantageous. Accumulation is very efficient at high pressures acting between the primary hydrostatic machine and the two secondary hydrostatic machines.
In einer vorteilhaften Weiterbildung ist der Druckbehälter über ein einstellbares Ventil an eine erste hydraulische Druckleitung des hydraulischen Leistungspfades angeschlossen. Das einstellbare Ventil ermöglicht eine Steuerung der Druckspeicherung. Bei geschlossenem Ventil findet kein Austausch zwischen Druckbehälter und dem hydraulischen Leistungspfades statt, so dass das leistungsverzweigte Getriebe ohne Energiespeicherung arbeitet.In an advantageous development of the pressure vessel is connected via an adjustable valve to a first hydraulic pressure line of the hydraulic power path. The adjustable valve allows control of the pressure storage. When the valve is closed, there is no exchange between the pressure vessel and the hydraulic power path, so that the power-split transmission operates without energy storage.
Über das einstellbare Ventil ist der Druckbehälter mit der ersten hydraulischen Druckleitung verbunden, die von der hydrostatischen Primärmaschine zu den beiden hydrostatischen Sekundärmaschinen führt. Die hydrostatische Primärmaschine wandelt den zweiten Anteil des Drehmomentes in Hydraulikdruck um und über die erste hydraulische Druckleitung wird der Hydraulikdruck zu den beiden hydrostatischen Sekundärmaschinen geleitet, die den Hydraulikdruck wieder in Drehmoment umwandeln. Im Druck der Hydraulikflüssigkeit in der ersten hydraulischen Druckleitung ist der zweite Anteil des Drehmomentes enthalten.Via the adjustable valve, the pressure vessel is connected to the first hydraulic pressure line, which leads from the hydrostatic primary machine to the two hydrostatic secondary machines. The hydrostatic primary machine converts the second portion of the torque into hydraulic pressure, and via the first hydraulic pressure line the hydraulic pressure is directed to the two secondary hydrostatic machines, which convert the hydraulic pressure back to torque. The pressure of the hydraulic fluid in the first hydraulic pressure line contains the second part of the torque.
Die hydrostatische Primärmaschine hat insbesondere ein verstellbares Schluckvolumen sowie die beiden hydrostatischen Sekundärmaschinen insbesondere auch ein verstellbares Schluckvolumen aufweisen. Durch Steuerung des Schluckvolumens der hydrostatische Primärmaschine und der beiden hydrostatischen Sekundärmaschinen ist der Druck in der ersten hydraulischen Druckleitung bei Drehmomentübertragungen so einstellbar, dass bei Rekuperation der Druck aus der ersten hydraulischen Druckleitung im Druckbehälter speicherbar ist. Durch Speicherung der unter Druck stehenden Hydraulikflüssigkeit im Druckbehälter ist eine Energiespeicherung möglich.In particular, the hydrostatic primary machine has an adjustable displacement volume and the two hydrostatic secondary machines in particular also have an adjustable displacement volume. By controlling the absorption volume of the hydrostatic primary machine and the two hydrostatic secondary machines, the pressure in the first hydraulic pressure line can be adjusted during torque transmission so that the pressure from the first hydraulic pressure line can be stored in the pressure vessel during recuperation. By storing the pressurized hydraulic fluid in the pressure vessel, energy storage is possible.
In einer vorteilhaften Weiterbildung ist ein Ausgleichsbehälter an einer zweiten hydraulischen Druckleitung im hydraulischen Leistungspfad angeschlossen, Der hydraulische Leistungspfad ist ein hydraulisch geschlossenes System. Bei der Rekuperation wird Hydraulikdruck im Druckbehälter gespeichert und dem hydraulischen System entnommen. Der Ausgleichsbehälter ist mit dem hydraulischen Systems verbunden und gleicht das hydraulische System nach der Druckspeicherung aus. Der Ausgleichsbehälter ist an der zweiten hydraulischen Druckleitung angeschlossen, die von den beiden hydrostatischen Sekundärmaschinen zur hydrostatischen Primärmaschine führt und einen Rücklauf für das hydraulische System bildet. Die hydrostatischen Sekundärmaschinen wandeln den Hydraulikdruck in Drehmoment um, so dass der Druck in der zweiten hydraulischen Druckleitung geringer ist als in der ersten hydraulischen Druckleitung.In an advantageous development, an expansion tank is connected to a second hydraulic pressure line in the hydraulic power path. The hydraulic power path is a hydraulically closed system. When recuperation, hydraulic pressure in the pressure vessel stored and removed from the hydraulic system. The expansion tank is connected to the hydraulic system and compensates the hydraulic system after pressure storage. The surge tank is connected to the second hydraulic pressure line, which leads from the two hydrostatic secondary engines to the hydrostatic primary engine and forms a return for the hydraulic system. The hydrostatic secondary machines convert the hydraulic pressure into torque so that the pressure in the second hydraulic pressure line is lower than in the first hydraulic pressure line.
Weitere Ausgestaltungen der Erfindung gehen aus der Beschreibung und der Zeichnung hervor. Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert.Further embodiments of the invention will become apparent from the description and the drawings. Embodiments of the invention are shown in simplified form in the drawing and explained in more detail in the following description.
Die Erfindung wird anhand der folgenden Ausführungsbeispiele näher erläutert. Dabei zeigt:The invention will be explained in more detail with reference to the following embodiments. Showing:
Der mechanische Leistungszweig
Der hydraulische Leistungszweig
Die hydrostatischen Primärmaschine
An der ersten hydraulischen Druckleitung
Das Schluckvolumen der hydrostatischen Primärmaschine
Zur Rekuperation bei Verzögerungen oder im Schubbetrieb des Kraftfahrzeuges sind die beiden hydrostatische Sekundärmaschinen
Bei einer Beschleunigungsphase des Kraftfahrzeuges kann das Ventil
Das leistungsverzweigte Getriebe mit Energiespeicher ermöglicht auch rein hydraulisches Fahren, wobei das Ventil
Durch Einstellung der Schwenkwinkel und damit der Schluckvolumen der hydrostatischen Primärmaschine
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 2335629 A1 [0002] DE 2335629 A1 [0002]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010009113A DE102010009113A1 (en) | 2010-02-24 | 2010-02-24 | Power-branched gear box for motor vehicle, has gear box input shaft, gear box output shaft, mechanical power path and hydraulic power path, where planetary gear divides torque on mechanical power path and hydraulic power path |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010009113A DE102010009113A1 (en) | 2010-02-24 | 2010-02-24 | Power-branched gear box for motor vehicle, has gear box input shaft, gear box output shaft, mechanical power path and hydraulic power path, where planetary gear divides torque on mechanical power path and hydraulic power path |
Publications (1)
Publication Number | Publication Date |
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DE102010009113A1 true DE102010009113A1 (en) | 2011-08-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102010009113A Withdrawn DE102010009113A1 (en) | 2010-02-24 | 2010-02-24 | Power-branched gear box for motor vehicle, has gear box input shaft, gear box output shaft, mechanical power path and hydraulic power path, where planetary gear divides torque on mechanical power path and hydraulic power path |
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DE (1) | DE102010009113A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2335629A1 (en) | 1973-07-13 | 1975-01-30 | Fendt & Co Xaver | Drive mechanism for agricultural vehicles - has part hydrostatic drive combining primary and secondary machines with differential gear |
-
2010
- 2010-02-24 DE DE102010009113A patent/DE102010009113A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2335629A1 (en) | 1973-07-13 | 1975-01-30 | Fendt & Co Xaver | Drive mechanism for agricultural vehicles - has part hydrostatic drive combining primary and secondary machines with differential gear |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |