Evaluation of EV Performance by Battery Swapping Strategy

According to the demand to reduce greenhouse gas, it is expected to deploy electric vehicles (EVs), widely. Especially, a type of battery swapping EV is highly expected because it can fulfill its electricity within significantly shorter time than a traditional plug-in EV. The battery swapping EV, however, is currently under development. So, it is also highly required to get examined. This paper reports the characteristic of battery swapping EV. Concretely, we discuss EV performance based on two strategies: 1) strategy deciding to swap battery only when an EV arrives at a destination PoI (Point of Interest), and, 2) strategy deciding to swap a battery whenever a battery gets lower level than a threshold. These strategies are called Check at PoI and Continuous Check, respectively. According to the results of evaluation, it is confirmed that the Continuous Check induces traffic jams around a battery swapping station (BSS) although the number of dead battery EVs is reduced. Hence, we propose a strategy to diversify the threshold for battery swapping, and clarify the advantage of the strategy.