This paper is the second in the series of documents designed to
record the progress of a series of SAE documents - SAE J2836™,
J2847, J2931, & J2953 - within the Plug-In Electric Vehicle
(PEV) Communication Task Force. This follows the initial paper
number 2010-01-0837, and continues with the test and modeling of
the various PLC types for utility programs described in J2836/1™
& J2847/1. This also extends the communication to an off-board
charger, described in J2836/2™ & J2847/2 and includes reverse
energy flow described in J2836/3™ and J2847/3.
The initial versions of J2836/1™ and J2847/1 were published
early 2010. J2847/1 has now been re-opened to include updates from
comments from the National Institute of Standards Technology (NIST)
Smart Grid Interoperability Panel (SGIP), Smart Grid Architectural
Committee (SGAC) and Cyber Security Working Group committee (SCWG).
These documents have been added to the NIST SGIP Catalogue of
Standards and it is expected the others to be added upon
publishing. Additional efforts have continued with the Smart Energy
Alliance (SEP2) as we coordinate the Application Specification with
this SAE document for PEV utility messages.
J2836/2™ and J2847/2 are intended to be published early 2011
and include the requirements for DC energy transfer to the PEV
where the PEV communicates with the Electric Vehicle Supply
Equipment (EVSE) that includes an off-board charger.
J2836/3™ and J2847/3 include the architecture and messages for
reverse energy flow including the following four types that include
specific architecture and communication requirements: Vehicle to
Grid (V2G), Vehicle to Home (V2H), Vehicle to Load (V2L) and
Vehicle to Vehicle (V2V). These also include options for either
on-board or off-board energy conversion.
Two new sets of J documents have been added to the task force
effort. J2931 includes the communication requirements and protocol
variations, while J2953 captures the communication interoperability
requirements. J2931 has four parts. J2931/1, J2931/2, J2931/3 &
J2931/4 have been added to the suite of documents to capture the
communication protocol, test criteria and other items that tie to
the J2847 series of messages. J2953 has started to identify the
interoperability requirements and approach for the multitude of PEV
and EVSE manufacturers to insure communication
interoperability.
The objective of these documents is to publish initial versions
that allow the task force to move into the implementation phase
that will continue with simulation, test and evaluation of the
systems and then re-publish with updates. This provides a two-step
approach to providing initial information and making it more
complete as our progress continues. Initial publication also allows
other groups and organizations to provide comments that will be
addressed in the updated version as shown with J2847/1 noted
above.