Abstract
The paper presents the results of the modeling process of a motor vehicle in order to obtain appropriate parameters for controlling the propulsion system. Are offered advanced models of the assembly internal combustion engine-clutch-transmission-wheels using specialized softwares. For verifing the theory and equations of the models were used similar models and performance's values for a well known car. The internal combustion engines is an in-line, 4 cylinders engines, natural aspirated and fueled by conventional fuel. The clutch is a mechanical one and transmission consist of a five gear gearbox connected through differential with 2 front driving wheels. The models analyze the whole behaviour of the vehicle in different rolling conditions and the results offer exploitation parameters and optimization values for obtaining lower fuel's consumption and lower emissions. The software used for modeling and simulation belongs to IPG (Germany) and AVL (Austria) companies.
Keywords: motor vehicle, internal combustion engines, powertrain, vehicle dynamics