Focus on OLEV: On Line Electric Vehicles

Abstract

Many studies on EVs have been performed in recent years, and various EVs have been developed, like pure battery EVs, hybrid EVs, battery replace EVs, or plug-in hybrid EVs, that use lithium (or polymeric) batteries that can be recharged at home or at a charging station. The biggest challenge to the commercialization of the EV is the battery. The battery problems on electric vehicles can be solved by using roadway-powered electric vehicles (RPEVs). RPEVs do not require heavy and large batteries because they directly get power while moving on a road. These vehicles can take power either in a wired or wireless way. Thus, various wireless power transfer systems (WPTSs) have been developed for RPEVs, and as consequence, new types of RPEV have been developed. WPTS for RPEVs should be able to deliver high power efficiently through a small air gap for avoiding collision between the road and the vehicle.