Engine valve lift control systems and methods for reduced fuel consumption

A fuel control system of an engine includes a fuel economy module. The fuel economy module determines a first valve lift state and a second valve lift state of a valve of the engine. The fuel economy module generates a first fuel consumption signal based on the first valve lift state and an engine t...

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Bibliographische Detailangaben
1. Verfasser:	DOUGLAS SCOT A
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES 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 LIGHTING MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL MECHANICAL ENGINEERING METERING BY VOLUME PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING WEAPONS
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Beschreibung
Zusammenfassung:	A fuel control system of an engine includes a fuel economy module. The fuel economy module determines a first valve lift state and a second valve lift state of a valve of the engine. The fuel economy module generates a first fuel consumption signal based on the first valve lift state and an engine torque request signal, and generates a second fuel consumption signal based on the second valve lift state and the engine torque request signal. The fuel control system also includes a valve lift state module. The valve lift state module selects one of the first valve lift state and the second valve lift state based the first fuel consumption signal and the second fuel consumption signal. The valve lift state module generates a valve lift select signal. The valve lift select signal indicates the selected one of the first valve lift state and the second valve lift state.