Comparative Study of Three Cost Functions for a Fuel Cell Hybrid Electric Vehicle

This paper performs a comparative study employing three cost functions for a hybrid trike motorcycle composed of a fuel cell stack and a battery pack. The utilized cost functions are based on hydrogen minimization, hydrogen and degradation minimization (multi-objective), and efficiency enhancement. They are synthesized in the design of an energy management strategy through dynamic programming under a standard and a real driving cycle. The obtained results indicate that using the cost function for efficiency enhancement leads to very near results compared to the multi-objective one (less than 2% of difference) while the hydrogen minimization results in the highest cost.