Method for operating an internal combustion engine for a hybrid powertrain system
A hybrid powertrain system includes an internal combustion engine (14) operatively connected to a second torque machine (72) to transmit torque to an output member (64). A method for operating the hybrid powertrain system includes monitoring an operator torque request, determining an output torque c...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
21.03.2012
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Subjects | |
Online Access | Get full text |
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Abstract | A hybrid powertrain system includes an internal combustion engine (14) operatively connected to a second torque machine (72) to transmit torque to an output member (64). A method for operating the hybrid powertrain system includes monitoring an operator torque request, determining an output torque command based upon the operator torque request, commanding a transition between an engine-off state and an engine-on state, monitoring an engine crank angle, spinning the engine unfueled, estimating cylinder pressure based upon the engine crank angle during the spinning of the engine (14), predicting a cylinder pulse torque based upon the cylinder pressure, determining a cancellation torque for the second torque machine (72) based upon the predicted cylinder pulse torque, and controlling motor torque output from the second torque machine (72) based upon the cancellation torque and the output torque command. |
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AbstractList | A hybrid powertrain system includes an internal combustion engine (14) operatively connected to a second torque machine (72) to transmit torque to an output member (64). A method for operating the hybrid powertrain system includes monitoring an operator torque request, determining an output torque command based upon the operator torque request, commanding a transition between an engine-off state and an engine-on state, monitoring an engine crank angle, spinning the engine unfueled, estimating cylinder pressure based upon the engine crank angle during the spinning of the engine (14), predicting a cylinder pulse torque based upon the cylinder pressure, determining a cancellation torque for the second torque machine (72) based upon the predicted cylinder pulse torque, and controlling motor torque output from the second torque machine (72) based upon the cancellation torque and the output torque command. |
Author | SCHWENKE, TRAVIS R BRANDEL, TODD D |
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DocumentTitleAlternate | Verfahren zum Betreiben eines Verbrennungsmotors bei einem Hybridantriebsstrangsystem Procédé de fonctionnement d'un moteur à combustion interne pour un système de transmission hybride |
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RelatedCompanies | DAIMLER AG BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT CHRYSLER LLC GM GLOBAL TECHNOLOGY OPERATIONS LLC |
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Snippet | A hybrid powertrain system includes an internal combustion engine (14) operatively connected to a second torque machine (72) to transmit torque to an output... |
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SubjectTerms | ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CONTROLLING COMBUSTION ENGINES ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR STARTING OF COMBUSTION ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS |
Title | Method for operating an internal combustion engine for a hybrid powertrain system |
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