VALVE LIFT CONTROL SYSTEMS AND METHODS FOR ENGINE STARTABILITY

A startup/shutdown control module selectively generates an engine startup command when an engine of the vehicle is off. A starter control module applies power to a starter motor when the engine startup command is generated. A valve control module, in response to the generation of the engine startup...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	DOUGLAS SCOT A
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A startup/shutdown control module selectively generates an engine startup command when an engine of the vehicle is off. A starter control module applies power to a starter motor when the engine startup command is generated. A valve control module, in response to the generation of the engine startup command: operates intake valves of cylinders of the engine in a low lift mode when an engine temperature is less than a predetermined temperature; and operates the intake valves of the cylinders of the engine in a high lift mode when the engine temperature is greater than the predetermined temperature.