EMISSIONS REDUCTIONS THROUGH MULTIPLE FUEL INJECTION EVENTS

摘要

In response to determining an engine load level less than 40% of a maximum engine load level, multiple fuel injections are performed, including a first fuel injection event of less than 25% of a combustion fuel amount, the first fuel injection event occurring before 10 degrees after top dead center (TDC); a second fuel injection event including between 15% and 65% of the combustion fuel amount, the second fuel injection event occurring after 10 degrees after TDC; and a third fuel injection event comprising between 10% and 85% of the combustion fuel amount, the third fuel injection event occurring before 63 degrees after TDC.