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The use of electric vehicles (EV) is becoming more widespread as a response to global warming. The major issues associated with EV are the annoyance represented by charging the vehicles and their limited cruising range. In an attempt to remove the restrictions on the cruising range of EV, the research discussed in this paper developed a dynamic charging EV and low-cost infrastructure that would make it possible for the vehicles to charge by receiving power directly from infrastructure while in motion. Based on considerations of the effect of electromagnetic waves, charging power, and the amount of power able to be supplied by the system, this development focused on a contact-type charging system. The use of a wireless charging system would produce concerns over danger due to the infiltration of foreign matter into the primary and secondary coils and the health effects of leakage flux.

One of the greatest challenges facing the electric vehicle (EV) is its very short cruising range compared to gasoline-powered vehicles and hybrid electric vehicles (HEV). In addition to cruising range, two other major challenges faced by EVs are charging and on-road acceleration. To resolve these challenges, this paper proposes a new way of thinking about how to extend the cruising range of EVs. The goal of this research is to extend the cruising range for EVs by enabling unlimited cruising range through simultaneous energy supply and charging while running. As a result, the following benefits can be realized: Unlimited EV cruising range Zero charging time Reduced battery load (1/2 or less) More enjoyable driving thanks to a lifting of the power limitations on EVs The paper describes a prototype system that achieves unlimited travel distance, then describes the results of real-world testing of the system, and finally discusses future prospects.