INTERNAL COMBUSTION ENGINE CONTROL DEVICE AND CONTROL METHOD

摘要

A target compression ratio (&egr;(t + Tact)) after a prescribed time (Tact) from the current time is calculated from the intake volume taken into a cylinder (7) after the prescribed time (Tact) from the current time, and a control command (t) to an electric motor (31) that drives a variable compression ratio mechanism (9) is calculated so that the actual compression ratio (&egr;r(t + Tact)) after the prescribed time (Tact) is the same as the target compression ratio (&egr;(t + Tact)) after the prescribed time (Tact). Thus, the actual compression ratio accurately follows the target compression ratio.