Efficiency improvement of a directly-driven electric scooter with energy management and battery sizing

This study descriptions the effect of an actual driven pattern on the battery pack sizing and an ultra-capacitor bank to improvement the gross efficiency and driving range of an electricscooter, driven directly by a four-phase axial-flux brushless dc permanent magnet motor. The key improvement of an electricscooter is increasing electric range until the battery discharges to a least threshold. The main part of designing an electric scooteris maximum battery energy storage with an auxiliary ultracapacitor. This study requires a MATLAB simulation code to estimate the power and energy demands of the electric scooter in variant electric range conditions. Choosing the right energy storage system to handle the dailydriving needs is essential and vehicle manufacturers are expected to produce EVs with sufficient electric driving range for their customers.Finally, in this particular work a regenerative braking system restores power to the ultra-capacitors and the ultra-capacitor bank supplies power for an additional acceleration and start-up when the battery required additional energy on short time and also mates prolonging battery life.

کلیدواژه ها:

battery ، electric scooter ، ultra-capacitor ، efficiency improvment ، electric driving range