Optimal control for integrated emission management in diesel engines

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...

Development of a Mathematical Model for Prediction of Pollutants Emission in D. I. Diesel Engines

Major pollutants emission from Direct-Injection (D.I) diesel engines are predicted by means of a mathematical model. In order to construct such a model, an integral Multi-Zone Combustion Model (MZCM) is formulated, which basically consists of jet mixing and combustion submodels. In MZCM, variation of injection pressure is considered. Also time period of ignition delay is predicted by considerin...

Control of EGR and VGT for Emission Control and Pumping Work Minimization in Diesel Engines

Legislators steadily increase the demands on lowered emissions from heavy duty vehicles. To meet these demands it is necessary to integrate technologies like Exhaust Gas Recirculation (EGR) and Variable Geometry Turbochargers (VGT) together with advanced control systems. Control structures are proposed and investigated for coordinated control of EGR valve and VGT position in heavy duty diesel e...

Literature Study on Tailpipe Particulate Emission Measurement for Diesel Engines

Demand Forecasting for Heavy-Duty Diesel Engines Considering Emission Regulations

Makers of heavy-duty diesel engines (HDDEs) need to reduce their inventory of old-generation products in preparation for the demand for next-generation products that satisfy new emission regulations. In this paper, a new demand forecasting model is proposed to reflect special conditions raised by the technological generational shift owing to new emission regulation enforcement. In addition, sen...