本SAE信息报告SAE J2931规定了插电式电动汽车（PEV）、电动汽车供电设备（EVSE）和公用事业或服务提供商之间的电力线载波（PLC）数字通信、能源服务接口（ESI）、高级计量基础设施（AMI），和家庭局域网（HAN）。这规定了PEV和EVSE之间的数字通信协议栈。由开放系统互连（OSI）参考模型（图1）第3层至第6层定义的图1所示堆栈的目的是使用SAE J2931/4中规定的第1层和第2层的功能，并根据SAE J2847/2（截至2012年8月1日，修订版）和SAE J2847/1（目标于2012年底修订版）的规定将功能导出到第7层。电动车辆供电设备之间的通信以及PEV以外的实体，如AMI、ESI、HAN、公用事业主管- 如图2所示，不在本文档的范围内。据推测，桥接设备将被要求携带EVSE之外的PEV信息，并且可能与后者并置。然而，这项工作仍在继续，提出了更多的意见和观点，而工作队也在继续进行更多的测试和早期实施。这项工作的结果将被纳入本文件的更新中，并根据需要重新发布版本。SAE J2931系列文件分为几个“斜杠”小节:本文件SAE J2931/1定义了体系结构和一般要求，包括关联、注册、安全和HAN要求，以及与其他SAE文件的映射。SAE J2931/4定义了使用BB OFDM和SAE J1772导频线或干线的数字通信的MAC和PHY层实现。 上述物理层规范的测试和验证正在进行中，所述测试的结果可能会排除一个或多个无法满足技术要求的拟议解决方案。将现有的选择减少到单一的全球标准仍然是长期目标。PEV通信标准的文档映射在第5节中进一步定义。

This SAE Information Report, SAE J2931, establishes the requirements for the powerline carrier (PLC) digital communication between plug-in electric vehicles (PEVs), the electric vehicle supply equipment (EVSE) and the utility or service provider, energy services interface (ESI), advanced metering infrastructure (AMI), and home area network (HAN).This specifies the digital communication protocol stack between PEVs and the EVSE. The purpose of the stack outlined inFigure 1and defined by layers 3 to 6 of the open systems interconnection (OSI) reference model (Figure 1) is to use the functions of layers 1 and 2 specified in SAE J2931/4 and export the functionalities to layer 7 as specified in SAE J2847/2 (as of August 1, 2012, revision) and SAE J2847/1 (targeting revision at the end of 2012).Communications between the EVSE and other than PEV entities such as AMI, ESI, HAN, utility head-end, etc., as shown inFigure 2are outside of the scope of this document. It is presumed that a bridging device will be required to carry PEV information beyond the EVSE and may be collocated with the latter.The effort continues however, to additional comments and viewpoints, while the task force also continues additional testing and early implementation. Results of this effort will then be incorporated into updates of this document and lead to a republished versions as needed.The SAE J2931 family of documents has been organized into several “slash” subsections:This document, SAE J2931/1, defines architecture and general requirements including association, registration, security, and HAN requirements, as well as mapping to other SAE documents.SAE J2931/4 defines the MAC and PHY layer implementation of digital communications using BB OFDM and either the SAE J1772 pilot wire or mains.Testing and validation of the aforementioned physical layer specifications is ongoing, and it is possible that the results of said testing may preclude one or more of the proposed solutions as unable to meet the technical requirements. Reduction of the available options to a single, worldwide standard remains the long-term goal.The document mapping of the PEV communication standards are further defined inSection 5.