FUEL INJECTION CONTROL DEVICE

摘要

A fuel injection control device for a cylinder direct-injection, spark-ignited internal combustion engine (1), that injects fuel once or a plurality of times from the air intake step through the compression step during homogenous combustion, and wherein the fuel injection timing that increases the filling efficiency in accordance with pressure oscillation is calculated on the basis of the frequency of pressure oscillation occurring inside the cylinder together with the fuel injection, determined on the basis of the cylinder capacity, and one of the fuel injections occurs at the relevant fuel injection timing.