System and method for deactivating a cylinder of an engine and reactivating the cylinder based on an estimated trapped air mass

摘要

A system according to the principles of the present disclosure includes a cylinder activation module and a spark control module. The cylinder activation module selectively deactivates and reactivates a cylinder of an engine. The cylinder activation module deactivates the cylinder after intake air is drawn into the cylinder and before fuel is injected into the cylinder or spark is generated in the cylinder. When the cylinder is reactivated, the spark control module selectively controls a spark plug to generate spark in the cylinder before an intake valve or an exhaust valve of the cylinder is opened.

主权项

1. A system comprising:
a cylinder activation module that:
selectively deactivates and reactivates a cylinder of an engine; anddeactivates the cylinder after intake air is drawn into the cylinder and before fuel is injected into the cylinder or spark is generated in the cylinder, wherein deactivating the cylinder includes closing and disabling an intake valve of the cylinder and an exhaust valve of the cylinder for multiple engine cycles while at least one other cylinder of the engine is active; and a spark control module that, when the cylinder is reactivated, selectively controls a spark plug to generate spark in the cylinder before the intake valve or the exhaust valve of the cylinder is opened.