The subject should serve as introduction of the most important current calculation models used in the development of state-of-the-art combustion engines to the students. Stress is laid upon the mathematical and physical foundations of calculation models and the respective software as well as the verification of results of the computer modelling by way of appropriate experimental methods. Conversion of volume models to 3-D models having carrier beams and point elements. Non-stationary loaded slide bearings in combustion engines, dynamic models. Computer models of power train mechanisms. Computer models of real working cycles of combustion engines. Thermodynamic analysis of an indicator diagram. Multidimensional models of combustion within the cylinder.