Valve control systems and methods for cylinder deactivation and activation transitions

An engine control system for a vehicle includes an air control module and a valve control module. The air control module determines a desired mass of air per cylinder (APC) based on a torque request and selectively increases the desired APC in response to a command to deactivate N cylinders of an en...

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1. Verfasser:	BRENNAN DANIEL G
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 MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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creator	BRENNAN DANIEL G
description	An engine control system for a vehicle includes an air control module and a valve control module. The air control module determines a desired mass of air per cylinder (APC) based on a torque request and selectively increases the desired APC in response to a command to deactivate N cylinders of an engine. The valve control module disables intake and exhaust valves of the N cylinders of the engine in response to the command, determines intake and exhaust valve timing based on the desired APC, and controls camless intake and exhaust valve actuators of M other cylinders based on the intake and exhaust valve timing, respectively. The engine includes Q cylinders, M and N are integers greater than zero, and M plus N equals Q.
format	Patent
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subjects	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 MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
title	Valve control systems and methods for cylinder deactivation and activation transitions
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