Riassunto analitico
In recent years, the need to meet international environmental objectives has led the automotive sector to investigate and industrialize electric and hybrid propulsion systems. Nowadays, electric and hybrid cars are a reality, while the motorcycle sector is still approaching such an innovation. Indeed, there are multiple applications in the on-road sector and only few ones in the off-road, e.g. KTM FREERIDE EX-C. It is remarkable to notice that the off-road electric motorbike market is expected to significantly grow due to the increasing limitations on the environmental and noise pollution.
In this context, the thesis focuses on the system design of an electric motorbike for off-road applications. Model-Based Design, a state-of-the-art procedure in the automotive electrification field, has been adopted. Precisely, the designed algorithm relay on a set of routines that computes the main characteristics of each powertrain component, e.g., e-motor, inverter, transmission and battery. Then, an upper-level tool executes each routine, realizing a sensitivity analysis to the variations of the main inputs and testing the computed designs with a static and dynamic system simulation tool.
Finally, the selection of the best configuration is achieved considering a set of KPIs and other industrial considerations.
|
