Browse Publications Technical Papers 2010-01-0329
2010-04-12

Global Dynamic Models for XiL-based Calibration 2010-01-0329

The modern power train calibration process is characterized by shorter development cycles and a reduced number of prototypes. However, simultaneously exhaust aftertreatment and emission testing is becoming increasingly more sophisticated. The introduction of predictive simulation tools that represent the complete power train can likely contribute to improving the efficiency of the calibration process using an integral model based workflow.
Engine models, which are purely based on complex physical principles, are usually not capable of real-time applications, especially if the simulation is focused on transient emission optimization.
Methods, structures and the realization of a global dynamic real-time model are presented in this paper, combining physical knowledge and experimental models and also static and dynamic sub-structures. Such a model, with physical a priori information embedded in the model structure, provides excellent generalization capability.
Compared to established empirical modeling strategies this approach separates dynamic from static effects by different model types, which are linked via thermodynamic characteristics. Thus a physical interpretation of the empirical model is still possible, since the thermodynamic characteristics are meant to describe the combustion process in a most general way. Inputs are (besides engine speed) ECU actuators only, allowing easy integration into various calibration environments, e.g. HiL systems.

SAE MOBILUS

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

Access SAE MOBILUS »

Members save up to 16% 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.
We also recommend:
TECHNICAL PAPER

An Indirect Sensing Technique for Closed-Loop Diesel Fuel Quantity Control

900494

View Details

TECHNICAL PAPER

A Simulation Study of Electrically Heating Diesel Exhaust

2016-01-0927

View Details

TECHNICAL PAPER

Genetic Algorithm for Dynamic Calibration of Engine's Actuators

2007-01-1079

View Details

X