Browse Publications Technical Papers 2001-01-2006

Study of Model-based Cooperative Control of EGR and VGT for a Low-temperature, Premixed Combustion Diesel Engine 2001-01-2006

A low-temperature, premixed combustion concept, called Modulated Kinetics (MK) combustion, has been developed that reduces emissions of nitrogen oxide (NOx) and smoke simultaneously. This new combustion concept requires heavy exhaust gas recirculation (EGR) to reduce the NOx emission and combustion noise. However, there is an interaction between the effects of controlling exhaust gas recirculation (EGR) and the variable geometry turbocharger (VGT). This makes controlling both the EGR rate and air mass flow rate more difficult under transient operating conditions. Therefore, the authors investigated a cooperative control of EGR and VGT in an effort to control the accuracy of both the EGR rate and the air mass flow rate. This paper presents an approach through the application of a control system CAD program and rapid prototyping tools to improve transient operating states by referring to a model-based EGR and VGT control algorithm. Furthermore, a prototype car was used to clarify the effect of the algorithm that was built through the simulation. The results of simulation and experiment, which demonstrate the effectiveness of this optimized transient control, are described.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.

Due to current capacity constraints, printed versions of our publications - including standards, technical papers, EDGE Reports, scholarly journal articles, books, and paint chips - may experience shipping delays of up to four to six weeks. We apologize for any inconvenience.
We also recommend:

An Artificial Neural Network-based Approach for Virtual NOx Sensing


View Details


Cylinder Pressure Based Fuel Path Control for Non-Conventional Combustion Modes


View Details


An Experimental Investigation of Partially Premixed Combustion Strategies Using Multiple Injections in a Heavy-Duty Diesel Engine


View Details