A fuel injection control device for a direct fuel injection engine is configured
to selectively control a fuel injection valve, which is configured and arranged
to directly inject a first fuel stream per cycle into a combustion chamber, to
use a first fuel injection timing when the controller determines that a stratified
air-fuel mixture will be difficult to form during a second fuel injection timing
based on a determination of an engine operation parameter by at least one sensor.
The first fuel injection timing is set to control the injection valve to inject
the first fuel stream during an intake stroke while a piston in the combustion
chamber is approximately at an intake top dead center position such that a majority
of the first fuel stream injected from the fuel injection valve is received inside
a cavity formed on the piston.
