Electrical vehicles autonomy is usually affected by cells low energy density. In an EV scooter, due to the limited room and weight available, this becomes a design critical point. Li-Ion cells seem to be the best solution to set up a good autonomy vehicle with a reasonable weight and volume occupation. Two different kinds of batteries are then tested to point out the single cell actual behavior. Afterwards, charge and discharge voltage profiles are obtained for a small pack and the best performing battery type is chosen. According to the observed cell to cell voltage mismatch, a monitor and balancing circuit is designed to provide individual cell protection and maximize the final packs exploitation.
FEASIBILITY, TEST AND NOVEL DESIGN OF BATTERY PACKS FOR EV SCOOTER / Casasso, P; Fratta, A; Giraudo, G; Guglielmi, P; Villata, V; Franceschini, Giovanni. - 2:(2003), pp. 1649-1654. (Intervento presentato al convegno IEEE-IECON2003 Conference Record of the IEEE Industrial Electronic Society tenutosi a Virginia USA nel 2-6 Nov. 2003.) [10.1109/IECON.2003.1280305].
FEASIBILITY, TEST AND NOVEL DESIGN OF BATTERY PACKS FOR EV SCOOTER
FRANCESCHINI, Giovanni
2003-01-01
Abstract
Electrical vehicles autonomy is usually affected by cells low energy density. In an EV scooter, due to the limited room and weight available, this becomes a design critical point. Li-Ion cells seem to be the best solution to set up a good autonomy vehicle with a reasonable weight and volume occupation. Two different kinds of batteries are then tested to point out the single cell actual behavior. Afterwards, charge and discharge voltage profiles are obtained for a small pack and the best performing battery type is chosen. According to the observed cell to cell voltage mismatch, a monitor and balancing circuit is designed to provide individual cell protection and maximize the final packs exploitation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
