Control device for internal combustion engine

摘要

A control device for an internal combustion engine is provided. The internal combustion engine includes an in-cylinder injector. The control device includes an electronic control unit. The electronic control unit is configured to: control energizing time for the in-cylinder injector when a partial lift injection is performed such that the partial lift injection becomes maximum partial lift injection with a longest energizing time in the partial lift injection; and control the number of energizations for performing the maximum partial lift injection during a single injection stroke such that a total of injection amounts of the maximum partial lift injection by the number of the energizations is equal to or less than a required injection amount as a target amount for the injection amount of a single injection stroke.

主权项

1. A control device for an internal combustion engine, the internal combustion engine including an in-cylinder injector, and the in-cylinder injector configured to inject a fuel into a cylinder of the internal combustion engine, the control device comprising:
an electronic control unit configured to:
control energizing time for the in-cylinder injector when a partial lift injection is performed such that the partial lift injection becomes maximum partial lift injection with a longest energizing time in the partial lift injection, the partial lift injection being an injection during which a needle valve of the in-cylinder injector does not reach a fully open state; andcontrol the number of energizations for performing the maximum partial lift injection during a single injection stroke such that a total of injection amounts of the maximum partial lift injection by the number of the energizations is equal to or less than a required injection amount as a target amount for an injection amount of a single injection stroke.