This paper discusses the importance of a simulation study of the Taiwan Electrical Fuel Cell Power Scooter. This study applies a more detailed modeling which is complex as existing modeling methods, yet not more difficult to solve numerically. In most simulation studies, the influence of non-linearity (for example, saturation, losses, reluctance effects) of the power electronics and electrical machine are neglected. Therefore the simulation results are only valid in the ideal case. Especially the influence of losses, harmonics, saturation, reluctance and time delay in the control, can be a decisive factor in the design. Therefore in this simulation study, it is shown to include these details. The conduction and switching losses in the power electronics during the drive cycle are simulated. Also the temperature stress on the semiconductors will be calculated in order to give a prediction of the life time of the semiconductor modules. Influence of the saturation and reluctance in the electrical machine and the impact on the overall system performance as well as the influence in the field oriented control. Detailed modeling of the field oriented control is discussed. Finally the implementation of the digital control in hardware directly from the simulation control model will be explained.