This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Controlling Turbocharging and Egr System to Improve Exhaust Aftertreatment Conditions in An Automotive Diesel Engine
Published November 03, 1998 by Institution of Mechanical Engineers in United Kingdom
A wide investigation on the control of the turbocharger and EGR system of an automotive DI diesel engine has been performed at the University of Genoa to improve the exhaust boundary conditions for the application of aftertreatment devices. Dynamometer bench measurements were developed in steady-state operating conditions (referred to the European driving cycle) on a DI diesel engine with turbochargers of different size equipped with wastegate or variable geometry regulating systems. The study outlined the possibility of improving the efficiency of a lean deNOx catalyst in typical urban conditions through an integrated control of turbocharger and EGR. Theoretical calculations highlighted the potential of a simulation model of the engine developed for management and control applications.