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GB/T 27930-2011 English PDF (GBT27930-2011)

GB/T 27930-2011 English PDF (GBT27930-2011)

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GB/T 27930-2011: Communication protocols between off-board conductive charger and battery management system for electric vehicle

This Standard specifies the definitions of physical layer, data link layer and application layer of the control-area-network (CAN)-based communication between off-board conductive charger and battery management system for electric vehicle. This Standard is applicable to the communication protocols between off-board charger and BMS (or other vehicle control units that have charging control function) of electric vehicles that adopt conductive charging mode.
GB/T 27930-2011
GB
ICS 29.200
K 81
Communication Protocols between Off-board
Conductive Charger and Battery Management System
for Electric Vehicle
ISSUED ON. DECEMBER 22, 2011
IMPLEMENTED ON. MARCH 1, 2012
Jointly Issued by. General Administration of Quality Supervision,
Inspection and Quarantine (AQSIQ);
Standardization Administration (SAC) of the People's
Republic of China.
Table of Contents
Foreword??...??3
1 Scope??...??4
2 Normative References??...??4
3 Terms and Definitions??...??4
4 General Provisions??...??6
5 Physical Layer??...??7
6 Data Link Layer??...??7
6.1 Frame Format??...??7
6.2 Protocol Data Unit (PDU)??...??7
6.3 Format of Protocol Data Unit (PDU)??...??8
6.4 Parameter Group Number (PGN)??...??8
6.5 Transport Protocol Function??...??8
6.6 Address Allocation??...??8
6.7 Message Type??...??8
7 Application Layer??...??8
8 Overall Charging Process??...??9
9 Message Classification??...??10
9.1 Charging Handshake Stage??...??10
9.2 Charging Parameter Configuration Stage??...??11
9.3 Charging Stage??...??11
9.4 End-of-charging Stage??...??12
9.5 Error Messages??...??13
10 Format and Content of Message??...??13
10.1 Messages during Handshake Stage??...??13
10.2 Messages during Parameter Configuration Stage??...??14
10.3 Messages during Charging Stage??...??17
10.4 Messages during End-of-charging Stage??...??25
10.5 Error Message??...??26
Appendix A (Informative) Charging Process??...??28
Appendix B (Informative) Charger and BMS Fault Diagnosis Messages??...??32 Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009. This Standard was proposed by the National Energy Administration and the Ministry of Industry and Information Technology of the People's Republic of China. This Standard shall be under the jurisdiction of Technical Committee on Electric Vehicle Charging Infrastructure of Standardization Administration of Energy Industry. Chief drafting organizations of this Standard. China Southern Power Grid, Guangdong Electric Power Design Institute, China Electric Power Research Institute, State Grid Electric Power Research Institute, XJ Group Corporation, and Tianjin Qingyuan Electric Vehicle Co., Ltd..
Chief drafting staffs of this Standard. Li Tao, Huangfu Xuezhen, Wu Guangjian, Huang Zhiwei, Liao Yi, You Fusheng, Guo Jinchuan, Hu Yufeng, Wu Shangjie, Yan Hui, Zhao Mingyu, Zhou Rong, Meng Xiangfeng, Zhao Chunming, and Yu Wenbin.
Communication Protocols between Off-board Conductive
Charger and Battery Management System for Electric Vehicle
1 Scope
This Standard specifies the definitions of physical layer, data link layer and application layer of the control-area-network (CAN)-based communication between off-board conductive charger (hereinafter referred to as "charger") and battery management system (hereinafter referred to as "BMS") for electric vehicle.
This Standard is applicable to the communication protocols between off-board charger and BMS (or other vehicle control units that have charging control function) of electric vehicles that adopt conductive charging mode.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the dated edition applies. For undated references, the latest edition of the referenced document (including all amendments) applies.
GB/T 19596 Terminology of Electric Vehicles
ISO 11898-1.2003 Road Vehicle - Control Area Network (CAN) - Part 1. Data Link Layer and Physical Signaling
SAE J1939-11.2006 Recommended Practice for Serial Control and
Communication Vehicle Network - Part 11. Physical Layer - 250K bits/s, Twisted Shielded Pair
SAE J1939-21.2006 Recommended Practice for Serial Control and
Communication Vehicle Network - Part 21. Data Link Layer
SAE J1939-73.2006 Recommended Practice for Serial Control and
Communication Vehicle Network - Part 73. Application Layer - Diagnostics 3 Terms and Definitions
The terms and definitions established in GB/T 19596 as well as the following terms and definitions are applicable to this document.
3.1
Frame
A series of data bits that constitute a complete massage.
3.2
CAN data frame
The orderly bit field that constitutes the CAN protocol for data transport, starting from the Start of Frame (SOF); and stopping at the End of Frame (EOF).
3.3
Messages
One or multiple "CAN data frame" that have the same parameter group number. 3.4
Identifier
The identification division of CAN arbitration field.
3.5
Standard frame
The CAN data frame that uses 11-bit identifier and that is defined in CAN-bus. 3.6
Extended frame
The CAN data frame that uses 29-bit identifier and that is defined in CAN-bus. 3.7
Priority
A 3-bit field in identifier. It sets the arbitration priority during transport process, with Grade 0 as the highest priority and Grade 7 as the lowest priority.
3.8
Parameter group; PG
The assembly of parameters sent in a message. The parameter group includes command, data, request, response and negative acknowledge, etc.
7.1 In this Standard, the application layer is defined in manner of parameters and parameter group.
7.2 Parameter group is numbered by adopting PGN, and each node identifies the content of data packet according to PGN.
7.3 "Request PGN" is used to initiatively obtain the parameter groups of other nodes.
7.4 Data are sent by adopting with periodical sending and event-driven modes. 7.5 In case that multiple PGN data need to be sent in order to realize one function, it requires receiving multiple PGN messages of this definition to judge the successful sending of this function.
7.6 When defining new parameter group, the parameters of one function, the parameters of the same or similar refresh frequency and the parameters belonging to one subsystem shall be put into one parameter group as much as possible; meanwhile, on one hand the new parameter group shall make best use of the data width of 8 bytes and the relevant parameters shall be put into one group as much as possible, and on the other hand the expansibility of the new parameter group shall be fully considered, one byte or bit shall be reserved for future modification. 7.7 When modifying the defined parameter group as given in Chapter 9, the definition of defined byte or bit shall not be modified; the newly-added parameters shall be relevant to the original parameters in parameter group and the irrelevant parameters shall not be added into the defined PGN for purpose of saving the number of PGNs.
7.8 During charging process, the definition of various fault diagnosis for charger and BMS shall comply with the requirements for CAN-bus diagnostic system as stated in 5.1 of SAE J1939-73.2006. The specification for definition of fault diagnosis messages is detailed in Appendix B.
7.9 The message sending options during charging stage are divided into mandatory and optional sending items, and the message of mandatory sending item shall be sent in strict accordance with the message format and content; if there is no need to send invalid message unit or optional sen...

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