Diesel Engines: Environmental Impact and Control

Diesel engines: environmental impact and control--a critical review introduction.

Diesel engines are widely used to power trucks, buses, passenger cars, locomotives, and ships. These engines power the heavy equipment that plants and harvests crops, tills soil, clears and reshapes land for roads and buildings, and hauls ores from mines to processing centers. Diesel engines generate electricity as portable power sources, peaking units, and emergency backups when line power is ...

Draft Regulatory Impact Analysis: Control of Emissions from Nonroad Diesel Engines (EPA-420-R-03-008)

Transient Burned Gas Rate Control on VVA equipped Diesel Engines

This paper addresses the problem of cylinder burned gas rate transient control of VVA equipped Diesel engines. This problem is of importance for NOx emissions reduction. The proposed strategy coordinates existing low-level intake manifold burned gas rate and VVA controllers. To determine relevant control actions, a model of cylinder filling phenomenon is determined. It expresses, under the form...

High Frequency Individual Cylinder Estimation for Control of Diesel Engines

HighFrequency Individual CylinderEstimation forControl ofDiesel Engines—Increasingly stringent pollution regulations have spurred a broad interest in the reduction of engine emissions. Two strategies can be considered: after-treatment or engine emissions reduction. For Diesel engines, after-treatment has a high cost induced by the required technology and implementation issues. In this context, ...

Optimal Selection of Control Inputs for Diesel Engines

Diesel engine NOx and PM emissions are characterized by a combination of many system inputs. Since more than one combination of inputs leads to the same output and the high number of degrees of freedom, it is an ill-posed problem to determine the optimal input combination. In this paper the introduction of a two dimensional coordinate system is addressed, with the target of a separate and indep...