TURBOCHARGED INTERNAL COMBUSTION ENGINE AND METHOD OF OPERATING SAME

摘要

The present disclosure provides a turbocharged internal combustion engine (10) and a method of operating the same. The method includes operating the engine (10) in a first mode wherein fuel in injected prior to autoignition conditions in at least one cylinder (20) of the engine (10). The method further includes selectively operating the engine (10) in a second operating mode that includes fuel injection after autoignition conditions, where a value indicative of turbocharger boost pressure meets a predetermined criterion, such as boost pressure being too low. The internal combustion engine (10) of the present disclosure includes an article have a computer readable medium with a control algorithm recorded thereon. The control algorithm includes first means for operating the engine (10) in a homogeneous charge mode, and second means for selectively operating the engine (10) in a mixed homogeneous charge and conventional mode, where a value indicative of a turbocharger boost pressure meets a predetermined criterion.