Design, implementation and experimental results of a wireless charger for E-bikes

Abstract

Based on the Inductive Power Transfer (IPT), the wireless energy transmission is increasingly representing an attractive solution for vehicle battery charging. Due to its high smartness, the wireless solution may be considered an interesting battery charging method for electric bicycles, as they represent light-weight and flexible means of transportation. According to the Vehicle-To-Grid (V2G) concept, the wireless power flow can occur in both the alternative directions: from the grid to the battery or in the opposite way. A Bi-Directional Inductive Power Transfer (BDIPT) system is therefore particularly convenient in the scenario of a multi-parking area. For the E-bike application, a bicycle-to-grid or a bicycle-to-bicycle energy transfer is a viable solution by means of BDIPT. In this paper, a 100W prototype of wireless battery charger for E-bikes is proposed and described.