DE102007047805A1 - Method for determining desired starting torque of drive unit, involves determining torque required by driver from linkage of driver pedal position and clutch pedal position information for electrical starting and for mixed startup - Google Patents
Method for determining desired starting torque of drive unit, involves determining torque required by driver from linkage of driver pedal position and clutch pedal position information for electrical starting and for mixed startup Download PDFInfo
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- DE102007047805A1 DE102007047805A1 DE102007047805A DE102007047805A DE102007047805A1 DE 102007047805 A1 DE102007047805 A1 DE 102007047805A1 DE 102007047805 A DE102007047805 A DE 102007047805A DE 102007047805 A DE102007047805 A DE 102007047805A DE 102007047805 A1 DE102007047805 A1 DE 102007047805A1
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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
- 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
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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
- 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 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 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 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
- 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 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 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
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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
- 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
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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
- 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
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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
- B60W20/00—Control systems specially adapted for hybrid vehicles
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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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—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 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 motors or the generators
- B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/48—Drive Train control parameters related to transmissions
- B60L2240/486—Operating parameters
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/02—Clutches
- B60W2510/0208—Clutch engagement state, e.g. engaged or disengaged
- B60W2510/0216—Clutch engagement rate
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/081—Speed
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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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
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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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/12—Brake pedal position
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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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/14—Clutch pedal position
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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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- 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
- B60W2710/10—Change speed gearings
- B60W2710/105—Output torque
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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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- 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
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Bestimmung des Anfahrsollmomentes des zumindest einen am Anfahrvorgang beteiligten Antriebsaggregats bei einem Antriebsstrang eines Kraftfahrzeugs mit einem hybridisierten Handschaltgetriebe, umfassend eine zwischen dem Verbrennungsmotor und der Getriebeeingangswelle angeordnete Anfahrkupplung sowie zumindest eine auf der Abtriebsseite der Anfahrkupplung angeordnete elektrische Maschine, gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a method of determination the Anfahrsollmomentes the at least one involved in the starting process Drive unit in a drive train of a motor vehicle with a hybridized manual transmission, comprising an intermediate the internal combustion engine and the transmission input shaft arranged Starting clutch and at least one on the output side of the starting clutch arranged electric machine, according to the preamble of the claim 1.
Bei einem Anfahrvorgang bei einem Kraftfahrzeug mit einem konventionellen Handschaltgetriebe wird seitens des Fahrers das Gaspedal betätigt, wodurch das Drehzahlniveau des Verbrennungsmotors bestimmt wird, wobei gleichzeitig die Anfahrkupplung betätigt wird, so dass solange die Kupplung eine Differenzdrehzahl aufweist, durch den Kupplungspedalweg das wirkende Antriebsmoment bestimmt wird. Wenn die Anfahrkupplung geschlossen wird, wird das Antriebsmoment vom Fahrer nur noch über das Gaspedal vorgegeben.at a starting process in a motor vehicle with a conventional Manual transmission is actuated by the driver's accelerator pedal, causing the speed level of the internal combustion engine is determined, at the same time the starting clutch actuated so that as long as the clutch has a differential speed, determined by the clutch pedal travel the acting drive torque becomes. When the starting clutch is closed, the driving torque becomes from the driver only about set the accelerator pedal.
Bei Fahrzeugen umfassend einen Verbrennungsmotor, ein Handschaltgetriebe und eine elektrische Maschine, d. h. bei Fahrzeugen umfassend ein aus dem Stand der Technik bekanntes sogenanntes hybridisiertes Handschaltgetriebe kann nach dem Stand der Technik die elektrische Maschine auf der Abtriebsseite der Anfahrkupplung angeordnet sein.at Vehicles comprising an internal combustion engine, a manual transmission and an electric machine, d. H. in vehicles comprising one out the so-called hybridized manual transmission known from the prior art According to the prior art, the electric machine on the output side the starting clutch be arranged.
Hierbei kann die elektrische Maschine entweder in Kraftflussrichtung vor dem Getriebe, am Abtrieb des Getriebes oder direkt auf der angetriebenen Achse des Fahrzeugs angeordnet sein; zudem kann nach dem Stand der Technik vorgesehen sein, dass die elektrische Maschine mittels einer Kupplung mit dem Antriebsstrang lösbar verbindbar ist.in this connection The electric machine can either be in power flow direction before the gearbox, at the output of the gearbox or directly on the driven axle be arranged of the vehicle; Moreover, according to the prior art be provided that the electric machine by means of a coupling detachable with the drive train is connectable.
Bei einem ein hybridisiertes Handschaltgetriebe aufweisenden Fahrzeug wird die zwischen dem Verbrennungsmotor und der Getriebeeingangswelle angeordnete Anfahrkupplung vom Fahrer über das Kupplungspedal wie gewohnt betätigt, wobei, um einen rein elektrischen Fahrbetrieb realisieren zu können, die Kupplung bei einigen Systemvarianten zusätzlich über eine automatische Betätigungseinrichtung betätigt werden kann. Hierbei kann die Kupplung durch eine der beiden Betätigungsarten (d. h. durch das Kupplungspedal oder durch die automatische Betätigungseinrichtung) geöffnet werden; zum Schließen der Kupplung müssen das Kupplungspedal und die automatische Betätigungseinrichtung „unbetätigt" sein.at a vehicle having a hybridized manual transmission is the between the engine and the transmission input shaft arranged starting clutch from the driver via the clutch pedal as used normally, wherein, in order to realize a purely electric driving, the Coupling in some system variants in addition via an automatic actuator actuated can be. Here, the coupling by one of the two types of actuation (i.e., by the clutch pedal or by the automatic control) open become; to close need the clutch the clutch pedal and the automatic actuator are "unactuated".
Bei einem rein elektrischen Anfahren, d. h. bei Anfahrsituationen, bei denen das Antriebsmoment nur durch die elektrische Maschine zur Verfügung gestellt wird, wird die Anfahrkupplung über die automatische Betätigungseinrichtung offen gehalten, wobei der Fahrer in der Regel dennoch das Kupplungspedal zum Anfahren betätigt, weil dies der gewohnten Bedienweise entspricht.at a purely electrical start, d. H. in starting situations, at which the drive torque only by the electric machine for disposal is set, the starting clutch via the automatic actuator kept open, with the driver usually still the clutch pedal pressed to start, because this corresponds to the usual way of operation.
Wenn einerseits in einer derartigen Situation das Sollmoment der elektrischen Maschine allein über das Fahrpedal bestimmt wird, entspricht dies nicht dem Verhalten eines konventionellen Antriebsstrangs, bei dem eine Erhöhung des Fahrpedalwinkels eine Erhöhung der Verbrennungsmotor-Drehzahl, nicht aber eine Erhöhung des Antriebsmoments bewirkt.If on the one hand, in such a situation, the desired torque of the electrical Machine alone over the accelerator pedal is determined, this does not correspond to the behavior a conventional powertrain, in which an increase in the Accelerator pedal angle an increase the engine speed, but not an increase in the Drive torque causes.
Wenn anderseits in einer derartigen Situation das Sollmoment der elektrischen Maschine allein über das Kupplungspedal bestimmt wird, entspricht dies ebenfalls nicht dem Verhalten eines konventionellen Antriebsstrangs, denn wenn der Fahrer nicht gleichzeitig genügend Gas gibt, kann der Verbren nungsmotor insbesondere bei Leerlaufdrehzahl das von der Kupplung übertragene Moment nicht mehr aufbringen und wird „abgewürgt".If on the other hand, in such a situation, the desired torque of the electrical Machine alone over the clutch pedal is determined, this also does not correspond the behavior of a conventional powertrain, because if the Driver not enough at the same time Gas gives, can the combus tion engine especially at idle speed that transmitted from the clutch Moment no longer muster and is "strangled".
Bei einem gemischten Anfahren, d. h. bei Anfahrsituationen, bei denen das Antriebsmoment vom Verbrennungsmotor und von der elektrischen Maschine aufgebracht wird, ist es wünschenswert, dass die elektrische Maschine den größten Teil des geforderten Anfahrmomentes aufbringt, wodurch die Anfahrkupplung in vorteilhafter Weise entlastet und der Gesamtwirkungsgrad erhöht werden kann.at a mixed start, d. H. in starting situations in which the drive torque from the combustion engine and the electric Machine is applied, it is desirable that the electric Machine the most part of the required starting torque applies, whereby the starting clutch advantageously relieved and the overall efficiency can be increased can.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Ermittlung des Anfahrsollmomentes des zumindest einen am Anfahrvorgang beteiligten Antriebsaggregats bei einem Antriebsstrang eines Kraftfahrzeugs mit einem hybridisierten Handschaltgetriebe, umfassend eine zwischen dem Verbrennungsmotor und der Getriebeeingangswelle angeordnete Anfahrkupplung sowie zumindest eine auf der Abtriebsseite der Anfahrkupplung angeordnete elektrische Maschine anzugeben, durch dessen Durchführung das Verhalten des Antriebsstrangs dem Verhalten eines herkömmlichen, nicht hybridisierten Antriebsstrangs entspricht, so dass der Fahrer das Kupplungspedal und das Gaspedal beim Anfahren wie gewohnt betätigen kann.Of the The present invention is based on the object, a method for determining the Anfahrsollmomentes the at least one at the starting process involved drive unit in a drive train of a motor vehicle with a hybridized manual transmission, comprising an intermediate the internal combustion engine and the transmission input shaft arranged Starting clutch and at least one on the output side of the starting clutch to specify arranged electrical machine, by carrying out the Behavior of the powertrain the behavior of a conventional, not hybridized powertrain corresponds so that the driver the Clutch pedal and the accelerator pedal when starting can operate as usual.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den entsprechenden Unteransprüchen hervor.These The object is solved by the features of claim 1. Further Embodiments of the invention and advantages will be apparent from the corresponding subclaims.
Demnach wird ein Verfahren zur Ermittlung des Anfahrsollmomentes des zumindest einen am Anfahrvorgang beteiligten Antriebsaggregats bei einem Antriebsstrang eines Kraftfahrzeugs mit einem hybridisierten Handschaltgetriebe vorgeschlagen, bei dem für den Fall eines rein elektrischen Anfahrens und für den Fall eines gemischten Anfahrens das Fahrerwunschmoment, das dem Anfahrsollmoment der beteiligten Antriebsaggregate entspricht, aus einer Ver knüpfung der Fahrpedalstellungs- und Kupplungspedalstellungsinformation ermittelt wird. Für den Fall eines Anfahrens mittels des Verbrennungsmotors entspricht das Verhalten des Antriebsstrangs ohnehin dem Verhalten eines herkömmlichen, nicht hybridisierten Antriebsstrangs.Accordingly, a method for determining the Anfahrsollmomentes the at least one participating in the startup drive unit in a drive train of a motor vehicle with a hybridized manual transmission proposed in which in the case of a purely electrical startup and in the case of a mixed start the driver's desired torque corresponding to the Anfahrsollmoment the participating drive units, from a Ver linking the accelerator pedal position and clutch pedal position information is determined. In the event of starting by means of the internal combustion engine, the behavior of the drive train corresponds in any case to the behavior of a conventional, non-hybridized drive train.
Gemäß einer Ausgestaltung der Erfindung wird das Sollmoment der elektrischen Maschine beim rein elektrischen Anfahren aus dem Minimum des dem Fahrpedalweg entsprechenden Antriebsmomentwunsches und der dem Kupplungspedalweg entsprechenden Kupplungsübertragungsfähigkeit ermittelt.According to one Embodiment of the invention is the desired torque of the electrical Machine at the purely electrical starting from the minimum of the Accelerator pedal corresponding drive torque request and corresponding to the Kupplungspedalweg Clutch transmission capability determined.
Auf diese Weise kann das Sollmoment der elektrischen Maschine nur dann ansteigen, wenn der Fahrer sowohl Gas gibt als auch die Kupplung „kommen lässt". Durch diese Vorgehensweise wird ein Verhalten des Antriebsstrangs realisiert, welches dem Verhalten eines Antriebsstrangs entspricht, bei dem der Fahrer mittels der elektrischen Maschine über eine „virtuelle Kupplung" anfährt, obwohl die elektrische Maschine das Moment in Wirklichkeit direkt in den Antriebsstrang einleitet.On This way, the desired torque of the electric machine can only then increase when the driver both gives gas and the clutch "come leaves. "By this procedure a behavior of the powertrain is realized, which is the behavior a drive train corresponds, in which the driver by means of electrical machine over a "virtual Clutch "starts, though the electric machine is actually the moment directly in the Powertrain initiates.
Gemäß der Erfindung wird aus der Drehzahl der elektrischen Maschine, dem Gaspedal- und Kupplungspedalweg berechnet, wann eine virtuelle Kupplung ins Haften kommen würde. Dies kann beispielsweise dann erkannt werden, wenn die Übertragungsfähigkeit der virtuellen Kupplung höher ist als das aus der Fahrpedalstellung berechnete Sollmoment der elektrischen Maschine. Nach erkanntem Haften der virtuellen Kupplung wird das Sollmoment der elektrischen Maschine in Abhängigkeit von der Fahrpedalstellung berechnet.According to the invention is the speed of the electric machine, the accelerator and clutch pedal travel calculates when a virtual clutch would stick. This can be recognized, for example, if the transmission capability the virtual clutch higher is calculated as the calculated from the accelerator pedal position target torque of electric machine. After recognized sticking of the virtual clutch is the target torque of the electric machine in dependence calculated from the accelerator pedal position.
Für den Fall eines gemischten Anfahrens wird vorgeschlagen, dass der Fahrer das Kupplungspedal und das Gaspedal beim Anfahren wie gewohnt betätigt, wobei das Fahrerwunschmoment, das dem Anfahrsollmoment entspricht, aus der Fahrpedalposition und aus der Kupplungspedalposition bestimmt wird.In the case a mixed start it is suggested that the driver the Clutch pedal and the accelerator pedal when starting operated as usual, with the driver request torque corresponding to the Anfahrsollmoment, off the accelerator pedal position and from the clutch pedal position is determined.
Gemäß einer besonders vorteilhaften Ausgestaltung der Erfindung wird das Fahrerwunschmoment (d. h. das Fahrsollmoment) aus dem Minimum des dem Fahrpedalweg entsprechenden Antriebsmomentwunsches und der dem Kupplungspedal entsprechenden Kupplungsübertragungsfähigkeit ermittelt.According to one Particularly advantageous embodiment of the invention is the driver's desired torque (i.e., the desired driving torque) from the minimum of the accelerator pedal travel corresponding drive torque request and the clutch pedal corresponding clutch transmission capability determined.
In einem zweiten Schritt des Verfahrens wird das Anfahrsollmoment auf den Verbrennungsmotor und die elektrische Maschine aufgeteilt. Hierbei wird das Sollmoment des Verbrennungsmotors an der Anfahrkupplung über eine automatische Betätigungseinrichtung eingestellt. Dies ist bei einer überlagerten Betätigung der Kupplung sowohl durch den Fahrer als auch durch die automatische Betätigungseinrichtung möglich, da das Kupplungsmoment durch die automatische Betätigungseinrichtung reduziert wird, weil ein Teil des Antriebsmoments durch die elektrische Maschine aufgebracht werden soll. Gemäß der Erfindung wird der Verbrennungsmotor durch eine Steuerelektronik auf eine von der Gaspedalposition oder vom zuvor ermittelten Fahrerwunschmoment abhängige Drehzahl geregelt.In a second step of the method is the Anfahrsollmoment on split the internal combustion engine and the electric machine. in this connection is the target torque of the internal combustion engine at the starting clutch via a automatic actuator set. This is in a superimposed actuation of Clutch both by the driver and by the automatic actuator possible, because the clutch torque by the automatic actuator is reduced because a part of the drive torque by the electric Machine should be applied. According to the invention, the internal combustion engine by an electronic control unit to one of the accelerator pedal position or controlled by the previously determined driver request torque dependent speed.
Vorzugsweise wird das Anfahrsollmoment auf den Verbrennungsmotor und die elektrische Maschine derart aufgeteilt, dass die elektrische Maschine den größten Teil des geforderten Anfahrmomentes aufbringt, wodurch die Anfahrkupplung entlastet und der Gesamtwirkungsgrad erhöht wird.Preferably is the Anfahrsollmoment on the engine and the electric Machine divided so that the electric machine most of the required starting torque applies, whereby the starting clutch relieved and the overall efficiency is increased.
Nachdem, beispielsweise aufgrund einer ansteigenden Fahrgeschwindigkeit, die Anfahrkupplung ins Haften gekommen ist, erfolgt erfindungsgemäß ein Übergang auf eine Momentverteilung auf den Verbrennungsmotor und die elektrische Maschine, welche von einer übergeordneten Betriebsstrategie vorgegeben wird, wobei das Fahrsollmoment nur noch anhand der Fahrpedalposition erkannt wird und somit nicht mehr von der Kupplungspedalposition abhängig ist.After this, for example due to an increasing driving speed, the starting clutch has come into liability, according to the invention a transition on a moment distribution to the internal combustion engine and the electric Machine, which from a parent Operating strategy is given, the driving torque is only is detected by the accelerator pedal position and thus no longer from the clutch pedal position dependent is.
Das hier vorgestellte Verfahren kann bei Fahrzeugen mit einem hybridisierten Handschaltgetriebe angewandt werden, bei denen die elektrische Maschine mittels einer Kupplung mit dem Antriebsstrang lösbar verbindbar ist. Zudem kann das Verfahren auch dann durchgeführt werden, wenn der Antriebsstrang des Fahrzeugs zwei oder mehrere elektrische Maschinen aufweist, die als Antriebsmaschinen dienen können, wobei in diesem Fall anstelle des Sollmomentes einer elektrischen Maschine das Summenmoment sämtlicher elektrischer Maschinen bestimmt wird.The Here presented procedure can be used on vehicles with a hybridized Manual transmissions are applied, in which the electric machine is detachably connectable by means of a coupling with the drive train. moreover The process can also be performed when the powertrain the vehicle has two or more electrical machines, which can serve as drive machines, in which case instead of the setpoint torque of an electrical machine, the summation torque all electrical machines is determined.
Die
Erfindung wird im folgenden anhand der beigefügten
In
den
Bezugnehmend
auf
Der
in
Bei
dem in
- 11
- Verbrennungsmotorinternal combustion engine
- 22
- Anfahrkupplungclutch
- 33
- GetriebeeingangswelleTransmission input shaft
- 44
- Schaltgetriebemanual transmission
- 55
- Starter-GeneratorStarter-generator
- 66
- elektrische Maschineelectrical machine
- 77
- Kupplungclutch
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007047805A DE102007047805A1 (en) | 2007-11-16 | 2007-11-16 | Method for determining desired starting torque of drive unit, involves determining torque required by driver from linkage of driver pedal position and clutch pedal position information for electrical starting and for mixed startup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007047805A DE102007047805A1 (en) | 2007-11-16 | 2007-11-16 | Method for determining desired starting torque of drive unit, involves determining torque required by driver from linkage of driver pedal position and clutch pedal position information for electrical starting and for mixed startup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102007047805A1 true DE102007047805A1 (en) | 2009-05-20 |
Family
ID=40560517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102007047805A Withdrawn DE102007047805A1 (en) | 2007-11-16 | 2007-11-16 | Method for determining desired starting torque of drive unit, involves determining torque required by driver from linkage of driver pedal position and clutch pedal position information for electrical starting and for mixed startup |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102007047805A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2452858A1 (en) * | 2010-11-15 | 2012-05-16 | Saab Automobile AB | Power train system and method for driving a vehicle |
| WO2015044754A1 (en) * | 2013-09-26 | 2015-04-02 | Toyota Jidosha Kabushiki Kaisha | Control system and control method |
| EP2949529A4 (en) * | 2013-01-22 | 2017-05-10 | Toyota Jidosha Kabushiki Kaisha | Controller of hybrid vehicle |
| CN110094496A (en) * | 2018-01-31 | 2019-08-06 | 长城汽车股份有限公司 | A kind of torque control method, device and vehicle |
-
2007
- 2007-11-16 DE DE102007047805A patent/DE102007047805A1/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2452858A1 (en) * | 2010-11-15 | 2012-05-16 | Saab Automobile AB | Power train system and method for driving a vehicle |
| EP2949529A4 (en) * | 2013-01-22 | 2017-05-10 | Toyota Jidosha Kabushiki Kaisha | Controller of hybrid vehicle |
| WO2015044754A1 (en) * | 2013-09-26 | 2015-04-02 | Toyota Jidosha Kabushiki Kaisha | Control system and control method |
| CN105579267A (en) * | 2013-09-26 | 2016-05-11 | 丰田自动车株式会社 | Control system and control method |
| CN105579267B (en) * | 2013-09-26 | 2018-04-03 | 丰田自动车株式会社 | control system and control method |
| US10000198B2 (en) | 2013-09-26 | 2018-06-19 | Toyota Jidosha Kabushiki Kaisha | Control system and control method |
| CN110094496A (en) * | 2018-01-31 | 2019-08-06 | 长城汽车股份有限公司 | A kind of torque control method, device and vehicle |
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