Optimal sizing of the Energy Storage System (ESS) in a Battery-Electric Vehicle

Energy Storage System (ESS) is a key component in every Electric Vehicle (EV). The most widely-used ESS in electric powertrains is based on batteries. Optimal sizing of the battery pack in electric vehicles is a crucial requirement as it strongly impacts the manufacturing cost and vehicle weight, thus running cost. This paper addresses optimal sizing of the ESS in a Battery-Electric Vehicle (BEV) based on Particle Swarm Optimization (PSO) method. Simulation results based on the optimally-sized ESS for a vehicle are presented to showcase the resulting system performance and the fact that all constraints are respected.