本SAE推荐实施规程确立了插电式电动汽车（PEV）和直流非车载充电器之间通信的要求和规范。在相关情况下，本文件对车辆和车辆操作员之间的互动进行了说明，但没有正式规定。本文件适用于用于导电充电的非车载直流充电器，该充电器通过SAE J1772耦合器向电动汽车的可再充电储能系统（RESS）提供直流电流。通信将在SAE J1772先导线上进行PLC通信。电力线通信（PLC）的详细信息见SAE J2931/4。本文件支持通过正向功率流（FPF）将直流能量从电源传输到车辆。SAE发布了多份与PEV和车辆相关的文件- 到网格接口。下面列出了各种系列的文件，并对每个文件进行了简要解释。图1显示了这些文件的顺序及其主要功能（例如，SAE J2836和SAE J2847/1文件从智能充电开始，SAE J2838和SAE J2847/2随后增加了直流充电等）。其目的是随着包含更多功能和特性，使后续斜线表相互补充。/6系列文件增加了未包含在后续斜线表中的无线充电项目。这些都包含在SAE J2953中的互操作性和SAE J2931/7中的安全性中。SAE J3072随后包括车辆对电网（V2G）电力和通信的PEV对电网要求，以匹配SAE J2836/3用例。直流充电文件摘要如下: SAE J1772是电动车辆供电设备的PEV系统文件，包括直流充电的系统和时序图。SAE J2836/2从直流充电通信的用例开始。SAE J2847/2然后将这些用例需求转换为信号和消息。SAE J2931/1规定了所有PEV通信的协议要求。SAE J2931/4用于直流充电的PLC通信要求，因为它只是一个有线中值。SAE J2953/1是互操作性要求。SAE J2953/2是互操作性程序和计划。SAE J2931/7包括安全性。

This SAE Recommended Practice establishes requirements and specifications for communication between plug-in electric vehicle (PEV) and the DC off-board charger. Where relevant, this document notes, but does not formally specify, interactions between the vehicle and vehicle operator.This document applies to the off-board DC charger for conductive charging, which supplies DC current to the rechargable energy storage system (RESS) of the electric vehicle through a SAE J1772 coupler. Communications will be on the SAE J1772 pilot line for PLC communication. The details of powerline communications (PLC) are found in SAE J2931/4.This document supports DC energy transfer via forward power flow (FPF) from source to vehicle.SAE has published multiple documents relating to PEV and vehicle-to-grid interfaces. The various document series are listed below, with a brief explanation of each.Figure 1shows the sequencing of these documents and their primary function (e.g., the SAE J2836 and SAE J2847/1 documents start with smart charging, SAE J2836 and SAE J2847/2 then adds DC charging, etc.). The intent is to have subsequent slash sheets complement each other as more functions and features are included. The /6 series of documents add wireless charging items not already included in the proceeding slash sheets. These are all then included in interoperability in SAE J2953 and security in SAE J2931/7. SAE J3072 then includes the PEV to grid requirements for vehicle-to-grid (V2G) power and communication to match SAE J2836/3 use cases.The summary of documents for DC charging is then as follows:SAE J1772 is the PEV to EVSE systems document and includes the system and timing diagrams for DC charging.SAE J2836/2 starts with the use cases for DC charging communications.SAE J2847/2 then transforms these use case requirements into the signals and messages.SAE J2931/1 is where the protocol requirements are placed for all PEV communications.SAE J2931/4 is used for the PLC communication requirements for DC charging since it is only a wired median.SAE J2953/1 is the interoperability requirements.SAE J2953/2 is the interoperability procedure and plan.SAE J2931/7 includes the security.