本SAE推荐规程规定了北美电动汽车（EV）感应耦合充电的最低接口兼容性要求。本部分规范适用于1级和2级电力传输的手动连接感应充电。3级兼容性要求包含在附录B中。推荐的软件接口消息传递要求包含在附录A中。这种感应耦合充电通常用于在远高于电源线频率的频率下传输功率。本规范的这一部分不适用于采用自动连接方法或旨在以电力线频率传输电力的感应耦合方案。在充电耦合器中）。充电控制器在确定电池已完全充电或在充电过程中检测到故障时，向充电器发出停止充电的信号。 以下步骤与图1中的示意图一致，并描述了闭环充电系统。车辆充电控制器确定进入电池的所需电流。**车辆充电控制器通过红外通信接口将充电器输出功率请求传输至充电器。**充电器根据车辆充电控制器发出的充电器输出功率请求，控制公用设施的输入电流。**充电器将60 Hz的公用电转换为HFAC电源。HFAC电源从耦合器（一次）磁耦合到车辆插孔（二次）。HFAC电源整流/过滤为直流电，为车辆蓄电池充电。该过程重复进行，直到车辆充电控制器确定蓄电池已充满电。**带有**的项目表示控制回路。Ã典型的闭环充电系统。

This SAE Recommended Practice establishes the minimum interface compatibility requirements for electric vehicle (EV) inductively coupled charging for North America. This part of the specification is applicable to manually connected inductive charging for Levels 1 and 2 power transfer. Requirements for Level 3 compatibility are contained in Appendix B. Recommended software interface messaging requirements are contained in Appendix A. This type of inductively coupled charging is generally intended for transferring power at frequencies significantly higher than power line frequencies. This part of the specification is not applicable to inductive coupling schemes that employ automatic connection methods or that are intended for transferring power at power line frequencies. in the charge coupler). The charge controller signals the charger to stop charging when it determines that the batteries are completely charged or a fault is detected during the charging process. The following steps correspond with the diagram in Figure 1, and describe the closed-loop charging system. Vehicle charge controller determines desired current into batteries. ** Vehicle charge controller transmits charger output power request to charger via an IR communications interface. ** Charger controls input current from utility based on charger output power request from vehicle charge controller. ** Charger converts 60 Hz utility power to HFAC power. HFAC power is magnetically coupled from the coupler (primary) to the vehicle inlet (secondary). HFAC power is rectified/filtered to DC to charge the vehicle batteries. Process repeats until the vehicle charge controller determines the batteries are fully charged. ** Items with ** indicate control loop. ÑTypical closed-loop charging system.