Experimental study of sources hybridization electromechanical storage system integration into an electric vehicle structure

This paper deals with the design and the integration of an electromechanical storage system into an electric vehicle power train. The main goal is to prove the interest of sources hybridization for heavy duty vehicles with high discontinuous mission profile as garbage collection. This behavior is characterized by a high peak-to-continuous battery power ratio. To optimize vehicle performances, the battery must be sized for the continuous power consumption or recuperation. In this case, the battery can be considered as an energy source. Peak power during acceleration or braking is produced or received respectively by the electromechanical storage system which acts as a power source. This principle has been validated thanks to simulations in Matlab/Simulink environment. Then, to prove these results, we have implemented the power source on a dedicated test bench which allows to recreate the dynamic vehicle behavior on a given mission profile. Experimental results are shown and discussed.