Standard No.:	T/GAEPA 002-2023
English Name:	Communication protocols between super charger and electric vehicle
Chinese Name:	电动汽车超级充电设备与车辆之间的数字通讯协议
Professional Classification:	T/    Social Organization Standard
Issued on:	2023-03-20
Implemented on:	2023-3-21
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	7500 words
Translation Price(USD):	360.0
Delivery:	via email in 1 business day

T/GAEPA 002-2023 Communication protocols between super charger and electric vehicle 1 Scope This document specifies the physical layer, data link layer and application layer of communication based on Control Area Network (CAN) between the Supply Equipment Communication Controller (SECC) of electric vehicle super charger (hereinafter referred to as charger) and the Electric Vehicle Communication Controller (EVCC). This document is applicable to communication between chargers and vehicles under charging mode 4 specified in Annex B of GB/T 18487.1, and also applicable to communication between chargers and electronic control units of vehicles with charging control functions. Reference may be made to it for other applicable scenarios. The Electric Vehicle Communication Controller specified in this document includes, but is not limited to, the Battery Management System (BMS) defined in GB/T 27930-2015, as well as in-vehicle systems that need to communicate with chargers to achieve other special functions. This protocol applies to super charger with a maximum output voltage of not less than 1 000 V, a maximum output current not exceeding 2 000 A, and a minimum output current not greater than 1 A. For details, refer to T/GAEPA 001-2022 Technical specification for construction of electric vehicle supercharging station. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 18487.1 Electric vehicle conductive charging system - Part 1: General requirements GB/T 19596 Terminology of electric vehicles GB/T 27930-2015 Communication protocols between off-board conductive charger and battery management system for electric vehicle T/GAEPA 001 Technical specification for construction of electric vehicle supercharging station SAE J1939-11:2006 Recommended practice for serial control and communication vehicle network Part 11: Physical layer -250K bits/s, twisted shielded pair SAE J1939-15:2018 Recommended practice for serial control and communication vehicle network Part 15: Physical layer-250K bits/s, Un-Shielded Twisted Pair SAE J1939-21:2006 Recommended practice for serial control and communication vehicle network Pat 21: Data link Layer 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 19596 and the following apply. 3.1 frame set of data bits constituting a complete message 3.2 CAN data frame ordered bit fields necessary for the CAN protocol for data transport, starting with the start of frame (SOF) and ending with the end of frame (EOF) 3.3 messages one or more CAN data frames having the same parameter group number 3.4 identifier identity part of the CAN arbitration field 3.5 standard frame CAN data frame that adopts a 11-bit identifier, as defined in the CAN bus

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 General provisions 5 Physical layer 6 Data link layer 7 Application layer 8 Overall charging process 9 Message classification 10 Message format and content Annex A (Informative) Charging process