METHOD AND APPARATUS FOR EXECUTING ENGINE AUTOSTART IN A POWERTRAIN SYSTEM EMPLOYING MULTIPLE TORQUE GENERATING DEVICES

A powertrain system is described, and includes an internal combustion engine and an electric machine configured to generate propulsion torque responsive to a driver torque request. A method for operating the powertrain system includes determining, in response to a request to execute an engine autost...

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Bibliographische Detailangaben
Hauptverfasser: Kim Kee Yong, Janczak John, Tamai Goro, Christman Anthony, Heap Anthony H, Chin Poh Fong, Wang Meng, Morton Bryan J
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A powertrain system is described, and includes an internal combustion engine and an electric machine configured to generate propulsion torque responsive to a driver torque request. A method for operating the powertrain system includes determining, in response to a request to execute an engine autostart operation, whether a driveline torque sag may occur. The method further includes forgoing executing the engine autostart operation when it is determined that a driveline torque sag will occur during the execution of the engine autostart operation.