GB/T 27930-2023: Digital communication protocols between off-board conductive charger and electric vehicle

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Scope

This document specifies the definitions and requirements of the controller area network
(CAN)-based communication physical layer, data link layer, transport layer, application
layer, between the off-board conductive charger's (hereinafter referred to as "charger")
equipment communication controller (SECC) and electric vehicle communication
controller (EVCC).
This document applies to the communication -- between the charger or the charger and
discharger using charging mode 4 and the electric vehicle. It also applies to the
communication -- between the charger or charger and discharger and the electronic
control unit of the electric vehicle with charging control function. Electric vehicle
communication controllers include but are not limited to battery management systems
(BMS), as well as in-vehicle systems that need to communicate with the charger to
achieve other special functions.
Chapters 5 ~ 11 of this document apply to the charging system, which is specified in
Appendix B of GB/T 18487.1-2023 (hereinafter referred to as “category A system").
Chapters 101 ~ 106 apply to the charging system, which is specified in Appendix C of
GB/T 18487.1-2023, as well as the charging and discharging system, which is defined in
Appendix E (hereinafter referred to as "category B system").
"Vehicle" in this document specifically refers to “electric vehicle”.

Basic Data

Standard ID	GB/T 27930-2023 (GB/T27930-2023)
Description (Translated English)	Digital communication protocols between off-board conductive charger and electric vehicle
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K81
Classification of International Standard	29.200
Word Count Estimation	130,168
Date of Issue	2023-09-07
Date of Implementation	2024-04-01
Older Standard (superseded by this standard)	GB/T 27930-2015
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration