The high expectations on hydrogen in the global energy system of the early 2000s failed to be met. In recent years, because of the more stringent emission legislation framework, the European funding for low emission innovations and the technology improvement combined with cost reduction, hydrogen and Fuel Cells are regaining momentum. In this context, the present thesis work focuses on the modelling of performance and fuel consumption of Fuel Cell vehicles (FCVs). Starting from the models present on Advisor, a MATLAB/Simulink model capable to simulate the whole vehicle system during various driving cycles has been created. The main components are modelled as follows.