A method for controlling an engine having both an electronically controlled inlet
device, such as an electronic throttle unite, and an electronically controlled
outlet device, such as a variable cam timing system is disclosed. The method of
the present invention achieves cylinder air charge control that is faster than
possible by using an inlet device alone. In other words, the method of the present
invention controls cylinder air charge faster than manifold dynamics by coordination
of the inlet and outlet device. This improved control is used to improve various
engine control functions.