聊聊电动汽车无线充电

2.无线充电（Wireless Charging）

Wireless changing is different from inductive charging, and information transmission, such as radio signal。Wireless means transferring power and energy in a great distance.It is typically done through electromagnetic resonance。其实与感应充电相比，其特点就是相隔的距离大了很多，采用的原理也并不相同。

无线充电的SAE标准SAE J2954TIR（technical information reference），有着众多的参与者，很奇怪这个工作组竟然是BMW来lead的：



有个项目介绍挺详细的，见参考文献2，项目预算为$400K，我在网上搜到一个类似的国内项目，不过我一点都不报希望，这位先生只会扯淡，但是预算估计相若。



其结构为，关于天线的照片挺清晰的



参考文献
1.《SAE TIRJ2954:“Wireless Charging of Electric and Plug-in Hybrid Vehicles”》Jesse Schneider Taskforce Chair
2.《Wireless Plug-in Electric Vehicle (PEV) Charging》 John M. Miller Oak Ridge National Laboratory
3.《Safely Charging EV and PHEV from the Electricity Grid Chris》 Mi, Ph.D.