On-road contactless power transfer - case study for driving range extension of EV

Abstract

As future electric vehicles (EVs) emerge, achievable driving range by these vehicles remains a major bottleneck. A battery electric vehicle (BEV) has a fairly limited driving range per charging and takes long time to charge. Moreover, the existing technology only enables stationary charging which means that an EV has to be stationary during the duration of its charge replenishment. The use of contactless power transfer systems presents the opportunity of on-road charge replenishment of EVs. This paper presents case studies which illustrate the effect of on-road charge replenishment on the driving range of an EV for varying levels of power transfer by CPT system. On-road charge replenishment of idle EV at traffic signal is considered for urban driving scenario whereas on-road charge replenishment of an EV in motion is considered for highway driving scenario.