Conclusion
Engine cycle modeling

Zerodimensional modeling of combustion in diesel engines is used in a wide range of applications, from the preliminary validation of a new solution to engine control models. The choice of the type of model to be used depends largely on the requirements in terms of accuracy and calculation speed:

• for a design office application, precision is more important than calculation time, so multi-zone models are preferred;

• for engine control applications (i.e. on-board applications), on the other hand, simpler models (phenomenological or single-zone models) will be chosen, as the available computing time is very limited.

Today, there's a strong trend towards using highly detailed models (while limiting the number of parameters) to feed parameters into simpler models that take less...