Optimal design of the wireless charging electric vehicle

The On-Line Electric Vehicle (OLEV) is an electric vehicle system is that utilizes the innovative wireless charging solution developed at Korea Advanced Institute of Science and Technology (KAIST) in South Korea. The OLEV system consists of vehicles and road-embedded power transmitters. The battery in the vehicle is charged remotely from the transmitters buried under the road and the charge can be done even while the vehicle is moving. The prototype of the OLEV has been successfully developed and the process of developing a commercial version is in progress. The OLEV has been considered as one of the leading green mass transportation solutions in Seoul. The key issue in the commercialization of the OLEV is to determine the battery size and the allocation of the power transmitters on the route. This paper describes a method of allocating the power transmitters and evaluating the battery size using a mathematical optimization technique. Although the presented method is motivated from the actual design issue of the OLEV, the concept and approach can be applied to any electric vehicle system utilizing a wireless charging technology.