DIRECT INJECTION SPARK IGNITION INTERNAL COMBUSTION ENGINE AND FUEL INJECTION CONTROL METHOD FOR SAME ENGINE

摘要

A direct injection spark ignition internal combustion engine includes fuel injection controlling means for preventing and/or suppressing engine knocking by retarding a fuel injection timing near an intake stroke bottom dead center. The fuel injection controlling means retards the fuel injection timing beyond a predetermined time (A2') by injecting a required amount of fuel through two or more split injections, and the time (A2") at which to end the last split injection (f4) is set to a time later than the predetermined time (A2').