Wireless charging is a convenient method of charging Electric Vehicles (EVs). Its application has been widely studied for electric cars but so far there have been limited experiments for electric bicycles (e-bikes). This paper addresses the design process and implementation details related to a wireless charger for a specific e-bike. Some issues such as the position of the secondary coil or the control algorithm prove to be crucial to the performance of the wireless transfer. Concerning the placement of the secondary coil, the paper proposes and validates a theoretical model to quantify the effects of the surrounding interfering materials. A CC-CV (Constant Current - Constant Voltage) control algorithm has been implemented to validate the theoretical results in these two charging phases. The control, the coils and the compensation networks have been designed to be simple and robust. The theoretical model, the charger and its control have proven to be effective in a real 84-W e-bike.

中文翻译：

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一种经济高效的电动自行车无线充电器的设计与实现


无线充电是一种为电动汽车 (EV) 充电的便捷方法。其在电动汽车上的应用已被广泛研究，但迄今为止，在电动自行车（e-bike）上的实验还很有限。本文介绍了与特定电动自行车无线充电器相关的设计过程和实现细节。次级线圈的位置或控制算法等一些问题被证明对无线传输的性能至关重要。关于次级线圈的放置，本文提出并验证了一个理论模型来量化周围干扰材料的影响。已实施 CC-CV（恒流 - 恒压）控制算法来验证这两个充电阶段的理论结果。控制、线圈和补偿网络设计得简单而稳健。理论模型、充电器及其控制已被证明在真正的 84 W 电动自行车中有效。