Sizing and experimental characterization of ultra capacitors for small urban hybrid electric vehicle
This paper presents the design and the
experimental tests of an ultra-capacitor pack used as an
energy storage system in a small hybrid electric vehicle.
This design consists in calculating the capacitance and the
power of the capacitors, which are necessary to store
kinetic energy during deceleration of the vehicle and then
to accelerate the vehicle. In a second part, experimental
tests are achieved to determine the real parameters of the
capacitor pack electric model [1] in order to validate the
manufacturer data. Influence of temperature on those
experimental data is investigated too. Finally, the authors
determine the energetic behaviour of the ultra-capacitors:
they have measured an efficiency of around 95% during
capacitors charge and discharge.
Keywords – ultra-capacitor (UC)£ energy storage system£
hybrid electric vehicle (HEV)£ experimental tests