Digital Communications for Plug-in Electric Vehicles.

Standard:
Issued:
  • 2012-01-24
Revision:
Scope:

This SAE Information Report SAE J2931 establishes the requirements for digital communication between Plug-In Vehicles (PEV), 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 is the first version of this document and completes the step 1 effort that captures the initial objectives of the SAE task force. The intent of step 1 was to record as much information on “what we think works” and publish. The effort continues however, to step 2 that allows public review for additional comments and viewpoints, while the task force also continues additional testing and early implementation. Results of the step 2 effort will then be incorporated into updates of this document and lead to a republished version. 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 J2931/2 is under development and is proposed to define a MAC & PHY layer implementation of digital communications using FSK and the SAE J1772™ Pilot wire. SAE J2931/3 is under development and is proposed to define a MAC & PHY layer implementation of digital communications using NB OFDM and either the SAE J1772™ Pilot wire or mains. SAE J2931/4 is under development and is proposed to define a MAC & 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 in section 4.

Rationale:

This SAE Information Report is intended to provide a common set of requirements, including testing and certification guidance, in order to ensure interoperability and compatibility between PEVs, EVSEs, Home Area Networks (HANs) and Advanced Metering Infrastructure manufactured and deployed by various different parties.

History:
Standard Published Revision Status
J2931/1_201209 2012-09-07 Latest Revised
2012-01-24 Historical Issued
AKA:
  • SAE J 2931/1
Sector:
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