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This research sought to develop a dynamic charging system, achieving an unlimited EV cruising range by charging the EV at high power during cruising. This system would help make it possible to finish battery charging in a short time by contact with the EV while cruising and enable drivers to freely cruise their intended routes after charging. A simulation of dynamic charging conditions was conducted for ordinary autonomous cruising (i.e., ordinary EV cruising) when dynamically charging at a high power of 450-kW (DC 750 V, 600 A). This report discusses the study results of a method of building the infrastructure, as well as looking at the cruise test results and future outlook. In particular, the research clarified the conditions for achieving an unlimited vehicle cruising range with a 450-kW dynamic charging system. It also demonstrated that this system would allow battery capacities to be greatly reduced and make it possible to secure the battery supply volume and resources.

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.