Efficiency enhancement of wireless charging for Electric vehicles through reduction of coil misalignment

摘要

In response to the ever increasing pollution levels and depleting fossil fuels, Plug-in Electric vehicle, hybrid electric vehicle and Electric vehicle (xEVs) technologies are emerging successfully in the automotive industry. The range anxiety issue of the xEVs customers are being addressed through various charging methods. The major hurdle in adoption of xEV is deployment of charging infrastructure. The wireless charging technology is being mechanized as a preferred option in the evolving xEV market. A substantive issue in the commercialization of wireless charging is the misalignment of the vehicle and the charging pad. This paper proposes and discusses a scheme which can significantly adjust the alignment between the coils by the deliberate movement of the receiver coil in response to the magnetic field of the transmitter coil. This will reduce the additional technique required for misalignment.