Cylinder re-activation fueling control systems and methods
AssigneeGM Global Technology Operations LLC
InventorsBEN W. MOSCHEROSCH, Hector Arvizu Dal Piaz
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Abstract
An engine control system is described. A cylinder control module selectively activates and deactivates intake and exhaust valves of a cylinder of an engine. A fuel control module disables fueling of the cylinder when the intake and exhaust valves of the cylinder are deactivated and, when the intake and exhaust valves of the cylinder are activated after being deactivated for at least one combustion cycle of the cylinder, adjusts fueling of the cylinder based on a predetermined reactivation fueling adjustment set for the cylinder.
Claims20
An engine control system, comprising:
- a cylinder control module that selectively activates and deactivates intake and exhaust valves of a cylinder of an engine;
- and
- a fuel control module that disables fueling of the cylinder when the intake and exhaust valves of the cylinder are deactivated and that, when the intake and exhaust valves of the cylinder are activated after being deactivated for at least one combustion cycle of the cylinder, adjusts fueling of the cylinder based on a predetermined reactivation fueling adjustment set for the cylinder.
An engine control method, comprising:
- selectively activating and deactivating intake and exhaust valves of a cylinder of an engine;
- disabling fueling of the cylinder when the intake and exhaust valves of the cylinder are deactivated;
- activating the intake and exhaust valves of the cylinder after the intake and exhaust valves are deactivated for at least one combustion cycle of the cylinder;
- and
- when the intake and exhaust valves of the cylinder are activated after being deactivated for the at least one combustion cycle of the cylinder, adjusting fueling of the cylinder based on a predetermined reactivation fueling adjustment set for the cylinder.
Dependencies are inferred from the claim text.