System and method for controlling airflow through cylinders of an engine during a deceleration fuel cutoff event

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United States of America Patent

PATENT NO 11156179
SERIAL NO

17038420

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Importance

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Abstract

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A system includes a fuel control module and a valve control module. The fuel control module controls a fuel injector to stop fuel delivery to each cylinder of an engine in a vehicle when the vehicle is decelerating. The valve control module controls a valve actuator to actuate intake and exhaust valves of each cylinder of the engine between open and closed positions when fuel delivery to each cylinder of the engine is stopped. The valve control module controls the valve actuator to adjust an amount of airflow through each cylinder of the engine to a minimum amount when fuel delivery to each cylinder of the engine is initially stopped. The valve control module controls the valve actuator to adjust the amount of airflow through each cylinder of the engine to an amount greater than the minimum amount before fuel delivery to each cylinder of the engine is restarted.

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Patent Owner(s)

Patent OwnerAddress
GM GLOBAL TECHNOLOGY OPERATIONS LLCP O BOX 300 MAIL CODE 482-C24-A65 DETROIT MI 48265

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Feldmann, Scott T South Lyon, US 13 170
Gallon, Robert Northville, US 8 13
Murthy, Pratap S Dexter, US 6 35
Raftopoulos, Andrew A Auburn Hills, US 3 2
Smith, Michael A Clarkston, US 405 16389

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