SAE規格 J2847/5, 2023: Communication Between Plug-in Vehicles and Customers
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Description
This SAE Recommended Practice establishes the communication for the variety of potential functions for plug-in electric vehicle (PEV) customers. This includes features for use case items in SAE J2836/3 that may be PEV/customer optional equipment, such as AC vehicle-to-load (V2L) and AC vehicle-to-vehicle systems. These systems conform to SAE J1772 with variations required to identify to the PEV bidirectional onboard charger (OBC) the mode of operation changes and output requirements.
SAE has published multiple documents relating to PEV and vehicle-to-grid (V2G) interfaces. The various document series are listed below, with a brief explanation of each.
SAE J2836 General requirements and use cases. This series is divided into several sections. SAE J2836/1 is for utility/smart grid messaging. SAE J2836/2 is for direct current (DC) charge control. SAE J2836/3 is for reverse energy flow. SAE J2836/4 is for diagnostics. SAE J2836/5 is for consumer requirements and the home area network (HAN). SAE J2836/6 is for wireless charging.
SAE J2847 Functional messaging requirements. This series defines the functional messages required for a given function. This series is divided into several sections that correspond to SAE J2836 above. SAE J2847/1 is for utility/smart grid messaging. SAE J2847/2 is for DC charge control. SAE J2847/3 is for reverse energy flow. SAE J2847/5 is for consumer requirements. SAE J2847/6 is for wireless charging.
SAE J2931 Digital communications for PEVs. This series defines the requirements to enable digital communications for PEVs. This series is divided into several sections. SAE J2931/1 describes overall requirements. SAE J2931/4 is wired communications using PLC. SAE J2931/6 is for wireless charging. SAE J2931/7 includes the security for each of these.
SAE J2953 PEV interoperability with electric vehicle supply equipment (EVSE). This series includes the requirements in SAE J2953/1 and test procedures in SAE J2953/2, for all the previous documents, including SAE J1772’s control pilot and proximity circuits and functions.
SAE J3072 Interconnection requirements for onboard, utility-interactive inverter systems. This document includes the requirements for onboard inverters to send/receive the grid signals for V2G functions.
Figure 1 shows 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 V2G power and communication to match the SAE J2836/3 use cases.
Purpose
- The primary purpose of SAE J2847/5 is to provide the design and interaction requirements for customer-to-PEV systems.
- SAE J2836/3 identifies the use cases and SAE J2847/5 adds the communication requirements.