DE102009057233A1 - Method for determining drag torque of internal combustion engine of motor vehicle, involves providing gear with two partial gears, where partial gears have switching elements for connecting partial gears with internal combustion engine - Google Patents
Method for determining drag torque of internal combustion engine of motor vehicle, involves providing gear with two partial gears, where partial gears have switching elements for connecting partial gears with internal combustion engine Download PDFInfo
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- DE102009057233A1 DE102009057233A1 DE102009057233A DE102009057233A DE102009057233A1 DE 102009057233 A1 DE102009057233 A1 DE 102009057233A1 DE 102009057233 A DE102009057233 A DE 102009057233A DE 102009057233 A DE102009057233 A DE 102009057233A DE 102009057233 A1 DE102009057233 A1 DE 102009057233A1
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- combustion engine
- internal combustion
- switching element
- transmission
- partial gears
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 41
- 238000013519 translation Methods 0.000 claims description 7
- 230000014616 translation Effects 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/30—Control strategies involving selection of transmission gear ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/11—Stepped gearings
- B60W10/113—Stepped gearings with two input flow paths, e.g. double clutch transmission selection of one of the torque flow paths by the corresponding input clutch
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- 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
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
-
- 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)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Ermittlung des Schleppmoments einer Verbrennungskraftmaschine eines Kraftfahrzeugs.The invention relates to a method for determining the drag torque of an internal combustion engine of a motor vehicle.
In der
Es ist Aufgabe der vorliegenden Erfindung, neuartige Betriebsverfahren für derartige Antriebssysteme zu schaffen.It is an object of the present invention to provide novel operating methods for such drive systems.
Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention, this object is achieved by the features mentioned in claim 1.
Bei dem erfindungsgemäßen Verfahren wird also die Verbrennungskraftmaschine an die wenigstens eine Antriebsachse angekuppelt, wodurch ein zusätzliches, durch die innere Reibung der nicht befeuerten Verbrennungskraftmaschine erzeugtes Bremsmoment zur Verfügung gestellt wird, welches zusätzlich zu dem Rekuperationsmoment ein Bremsmoment an der Antriebsachse erzeugt. Dadurch wird verhindert, dass zur Durchführung eines Schaltvorgangs die Verbindung zwischen der elektrischen Antriebseinrichtung und der Antriebsachse unterbrochen werden muss, wodurch letztendlich ein Ruckeln oder eine sonstige Störung im Antriebsstrang verhindert wird. Durch die erfindungsgemäße Durchführung dieses Verfahrens mit dem Wechsel zwischen den beiden Schaltelementen, wobei das schneller rotierende Schaltelement die Verbrennungskraftmaschine hochschleppt und anschließend das Moment an das langsamer rotierende Schaltelement übergibt, wird eine sehr komfortable Übergabe des Drehmoments von der wenigstens einen Antriebsachse an die Verbrennungskraftmaschine erzielt. Auf diese Weise ergibt sich für den Fahrer des Kraftfahrzeugs keine Änderung des Betriebszustands des Kraftfahrzeugs, so dass er möglicherweise nicht wahrnimmt, dass das beschriebene Verfahren durchgeführt wurde.In the method according to the invention, therefore, the internal combustion engine is coupled to the at least one drive axle, whereby an additional, generated by the internal friction of the non-fired internal combustion engine braking torque is provided which generates in addition to the recuperation a braking torque to the drive axle. This prevents that for the implementation of a switching operation, the connection between the electric drive device and the drive axle must be interrupted, which ultimately jerking or other disturbance in the drive train is prevented. By carrying out this method according to the invention with the change between the two switching elements, wherein the faster rotating switching element towed the internal combustion engine and then passes the torque to the slower rotating switching element, a very comfortable transfer of torque from the at least one drive axle is achieved to the internal combustion engine. In this way, there is no change in the operating state of the motor vehicle for the driver of the motor vehicle, so that he may not perceive that the described method has been carried out.
Um dabei feststellen zu können, welches Schleppmoment die Verbrennungskraftmaschine im momentanen Zustand erzeugt, wird erfindungsgemäß das von der Verbrennungskraftmaschine erzeugte Schleppmoment mit dem Drehmoment des mit der Verbrennungskraftmaschine verbundenen Schaltelements verglichen, wobei in dem Moment, in dem stabile Drehzahlverhältnisse herrschen, das an dem mit der Verbrennungskraftmaschine verbundenen Schaltelement angelegte Drehmoment dem aktuellen Schleppmoment der Verbrennungskraftmaschine entspricht. Durch die Kenntnis des aktuellen Schleppmoments der Verbrennungskraftmaschine können die weiteren Verfahrensparameter an diesen Wert angepasst werden.In order to be able to determine which drag torque the internal combustion engine generates in the current state, according to the invention, the drag torque generated by the internal combustion engine is compared with the torque of the switching element connected to the internal combustion engine, at the moment prevail in the stable speed ratios, at the with the Combustion engine connected switching element applied torque corresponds to the current drag torque of the internal combustion engine. By knowing the current drag torque of the internal combustion engine, the further process parameters can be adapted to this value.
Um den Wert des ermittelten Schleppmoments in weiteren Steuerungshierarchien verwenden zu können, kann dasselbe in einer vorteilhaften Weiterbildung des erfindungsgemäßen Verfahrens in einem Kennfeld gespeichert werden.In order to use the value of the determined drag torque in other control hierarchies, the same can be stored in an advantageous development of the method according to the invention in a map.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung kann vorgesehen sein, dass die elektrischen Antriebseinrichtung gemäß dem ermittelten Schleppmoment der Verbrennungskraftmaschine gesteuert wird. Auf diese Weise kann das von der elektrischen Antriebseinrichtung zur Verfügung zu stellende Drehmoment an das von der Verbrennungskraftmaschine erzeugte Schleppmoment angepasst werden, so dass beispielsweise bei Bergabfahrten eine bestimmte Bremswirkung eingestellt werden kann. Auf diese Weise kann das Drehmoment der elektrischen Antriebseinrichtung besser genutzt werden und es lässt sich insgesamt ein besserer Wirkungsgrad des Antriebssystems erzielen.In a further advantageous embodiment of the invention can be provided that the electric drive device is controlled in accordance with the determined drag torque of the internal combustion engine. In this way, the torque to be provided by the electric drive device can be adapted to the drag torque generated by the internal combustion engine, so that a specific braking effect can be set, for example, when driving downhill. In this way, the torque of the electric drive device can be better used and it can be achieved overall better efficiency of the drive system.
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den restlichen Unteransprüchen.Further advantageous embodiments and modifications of the invention will become apparent from the remaining dependent claims.
Ein Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung und Zeichnung näher erläutert.An embodiment of the invention is explained in more detail in the following description and drawings.
Es zeigt:It shows:
Ein Antriebssystem
Das erste Teilgetriebe
Bei dem Antriebssystem
Im vorliegenden Fall können in dem Getriebe
Wenn die elektrische Antriebseinrichtung
Zum Verbinden der Verbrennungskraftmaschine
In
Um das Schleppmoment der Verbrennungskraftmaschine
Mit diesem Verfahren kann also das Schleppmoment der Verbrennungskraftmaschine
In
Während sämtlicher der oben erläuterten Vorgänge kann die elektrische Antriebseinrichtung
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
- EP 1714817 A1 [0002] EP 1714817 A1 [0002]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009057233A DE102009057233A1 (en) | 2009-12-05 | 2009-12-05 | Method for determining drag torque of internal combustion engine of motor vehicle, involves providing gear with two partial gears, where partial gears have switching elements for connecting partial gears with internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009057233A DE102009057233A1 (en) | 2009-12-05 | 2009-12-05 | Method for determining drag torque of internal combustion engine of motor vehicle, involves providing gear with two partial gears, where partial gears have switching elements for connecting partial gears with internal combustion engine |
Publications (1)
Publication Number | Publication Date |
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DE102009057233A1 true DE102009057233A1 (en) | 2011-06-09 |
Family
ID=43972359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102009057233A Withdrawn DE102009057233A1 (en) | 2009-12-05 | 2009-12-05 | Method for determining drag torque of internal combustion engine of motor vehicle, involves providing gear with two partial gears, where partial gears have switching elements for connecting partial gears with internal combustion engine |
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DE (1) | DE102009057233A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013215497A1 (en) * | 2013-08-07 | 2015-02-12 | Zf Friedrichshafen Ag | Method for determining at least one drag torque acting on the input side in an automatic motor vehicle transmission |
DE112012002825B4 (en) | 2011-07-05 | 2021-11-11 | Schaeffler Technologies AG & Co. KG | Method for monitoring a clutch and a transmission for carrying out the method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19931160A1 (en) * | 1999-07-06 | 2001-01-11 | Volkswagen Ag | Method and device for clutch characteristic curve adaptation and for determining a clutch-dependent speed gradient |
EP1714817A1 (en) | 2005-04-19 | 2006-10-25 | Getrag Ford Transmissions GmbH | Hybrid drive system with double clutch |
-
2009
- 2009-12-05 DE DE102009057233A patent/DE102009057233A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19931160A1 (en) * | 1999-07-06 | 2001-01-11 | Volkswagen Ag | Method and device for clutch characteristic curve adaptation and for determining a clutch-dependent speed gradient |
EP1714817A1 (en) | 2005-04-19 | 2006-10-25 | Getrag Ford Transmissions GmbH | Hybrid drive system with double clutch |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112012002825B4 (en) | 2011-07-05 | 2021-11-11 | Schaeffler Technologies AG & Co. KG | Method for monitoring a clutch and a transmission for carrying out the method |
DE102013215497A1 (en) * | 2013-08-07 | 2015-02-12 | Zf Friedrichshafen Ag | Method for determining at least one drag torque acting on the input side in an automatic motor vehicle transmission |
US9644733B2 (en) | 2013-08-07 | 2017-05-09 | Zf Friedrichshafen Ag | Method for determination of at least a drag torque effective on the input side of an automatic motor vehicle transmission |
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Free format text: PREVIOUS MAIN CLASS: B60W0020000000 Ipc: B60W0020500000 |
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