System and method for controlling internal combustion engine.

摘要

The control system includes a spark timing controller, a throttle controller for positioning an intake air throttle, and an engine cylinder operator for deactivating and reactivating some of the engine's cylinders. An engine controller has a processor for selecting the number of cylinders for operation and for operating the spark timing controller, the throttle controller, and the cylinder operator so that during any transition from operation with a first number of activated cylinders to operation with a second number of activated cylinders. The processor will alter the spark advance and control the amount of air entering the engine cylinders so that the torque output of the engine will remain relatively unchanged during the transition.