Metodo di modellamento di un gruppo propulsore e di controllo del gruppo propulsore modellato

Method for controlling a powertrain including an internal combustion engine and a relating After Treatment System (ATS), the method including an engine pre-optimization identifying feasible and Pareto optimal engine operation in such a way as to minimize fuel consumption and engine-out NOx emissions and to maximize the enthalpy provided to the ATS, and an on-line controlling of the power-train on the basis of said pre-optimization.