CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

This control device for an internal combustion engine is equipped with a variable valve timing mechanism. The control device for the internal combustion engine is configured to perform: a learning process of learning, as holding control amounts, the control amounts of a hydraulic control valve when the actual valve timing is held at a fixed timing in a spring region and in a non-spring region; and at least one update process among an update process of updating the holding control amount for the non-spring region whenever the holding control amount for the spring region learned in the learning process drops below the holding control amount for the non-spring region so as to satisfy a relationship wherein the holding control amount for the non-spring region is less than or equal to the holding control amount for the spring region, and an update process of updating the holding control amount for the spring region whenever the holding control amount for the non-spring region learned in the learning process exceeds the holding control amount for the spring region so as to satisfy a relationship wherein the holding control amount for the spring region is greater than or equal to the holding control amount for the non-spring region.