SAE J2293规定了电动汽车（EV）和非车载电动汽车供电设备（EVSE）的要求，这些设备用于将电能从北美的电力公用事业系统（公用事业）传输至电动汽车。本文件直接或通过引用定义了确保相同物理系统架构的电动汽车和电动汽车供电设备功能互操作性所需的电动汽车能量传输系统（EV-ETS）的所有特征。无论结构如何，ETS都负责将交流电能转换为直流电能，用于为电动汽车的蓄电池充电，如图1所示。

SAE J2293 establishes requirements for Electric Vehicles (EV) and the off-board Electric Vehicle Supply Equipment (EVSE) used to transfer electrical energy to an EV from an Electric Utility Power System (Utility) in North America. This document defines, either directly or by reference, all characteristics of the total EV Energy Transfer System (EV-ETS) necessary to insure the functional interoperability of an EV and EVSE of the same physical system architecture. The ETS, regardless of architecture, is responsible for the conversion of AC electrical energy into DC electrical energy that can be used to charge the Storage Battery of an EV, as shown in Figure 1.