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GB/T 32960.3-2016 (GB/T32960.3-2016)

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GB/T 32960.3-2016: PDF in English (GBT 32960.3-2016)

GB/T 32960.3-2016
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.99
T 35
Technical specifications of remote service and
management system for electric vehicles - Part 3.
Communication protocol and data format
ISSUED ON. AUGUST 29, 2016
IMPLEMENTED ON. OCTOBER 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 5 
4 General requirements ... 7 
5 Communication connection ... 7 
6 Structure and definition of data packet ... 10 
7 Format and definition of data unit ... 12 
Annex A (Normative) Definitions of some fields ... 24 
Annex B (Informative) Vehicle-to-platform communication protocol ... 26 
Foreword
GB/T 32960 Technical specifications of remote service and management
system for electric vehicles - Part 3. Communication protocol and data format
consists of three parts.
- Part 1. General Principle;
- Part 2. On-board Terminal;
- Part 3. Communication protocol and data format.
This Part is the third part of GB/T 32960.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009.
This Part was proposed by Ministry of Industry and Information Technology of
China.
This Part shall be under the jurisdiction of National Technical Committee on
Automobile of Standardization Administration of China (SAC/TC114).
The drafting organizations of this Part. Beijing Institute of Technology, China
Automotive Technology and Research Center, Shanghai Automotive Group Co.,
Ltd., Neusoft Group Co., Ltd., Wuhan Intest Electronic Technology Co., Ltd.,
Beijing Institute of Technology New Source Information Technology Co., Ltd.,
Shanghai International Automobile City Group Co., Ltd., Putian New Energy
Co., Ltd., Huawei Technologies Co., Ltd., BYD Auto Industry Co., Ltd.,
Zhengzhou Yutong Bus Co., Ltd., Nantong Honghu Information Technology Co.,
Ltd., Brilliance Automotive Group Holdings Limited, Beijing Product Quality
Supervision and Inspection Institute, Shenzhen BYD Daimler New Technology
Co., Ltd., Beijing Automotive Research Institute Co., Ltd., Chongqing Changan
New Energy Automobile Co., Ltd., Beijing New Energy Vehicle Co., Ltd.,
Shanghai Ying Shi Automotive Technology Co., Ltd., Zhejiang Geely
Automobile Research Institute Co., Ltd., Wuhan Electric Vehicle Technology
Development Co., Ltd., Pan Asia Automotive Technology Center Co., Ltd.,
SAIC-GM-Wuling Automobile Co., Ltd., Guangzhou Toyota Motor Co., Ltd.,
SAIC Volkswagen Automotive Company Limited, FAW-Volkswagen Automotive
Company Limited, Southeast (Fujian) Automotive Industry Co., Ltd.
Main Drafters of this Part. Wang Zhenpo, Zhou Rong, Liu Peng, Pu Jinhuan,
Long Chaohua, Lu Chun, Hou Yi, Meng Xiangfeng, Chen Hanjun, Wang Lei, Mi
Feng, Ding Xiaohua, Wu Zhiqiang, Fu Jing, Liu Kai, Liu Yongjun, Jiang Feng,
Lv Shujun, Wu Lihua, Zhao Yatao, Shan Chong, Zhang Wenjie, Guan Pengshu,
Wang Xu, Zhu Junjun, Wang Wenyang, Yang Xiantao, Xu Duo, Gao Xianfeng,
Peng Yonglun, Hu Fangfang, Yang Yang, Xiong Xiaofei, Huang Zhicheng, Yu
Technical specifications of remote service and
management system for electric vehicles - Part 3.
Communication protocol and data format
1 Scope
This Part of GB/T 32960 specifies the protocol structure, communication
connection, data packet structure and definition, data unit format and definition
in the electric vehicle remote service and management system.
This Part is applicable to communication between platforms in electric vehicle
remote service and management system. Car-borne terminal to platform
transmission should refer to the implementation.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 1988, Information technology - 7-bit Coded character set for
information interchange;
GB 16735, Road vehicles - Vehicle identification number(VIN) - Location and
attachment;
GB 18030, Information technology - Chinese coded character set;
GB/T 19596, Terminology of electric vehicles;
GB/T 32960.1, Technical specification for electric vehicle remote service and
management system - Part 1. General.
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
19596, GB/T 32960.1 AND the following ones apply.
3.1 client platform
used as remote service and management platform of vehicle data sender
during data exchange between platforms
3.2 server platform
used as remote service and management platform of vehicle data receiver
during data exchange between platforms
3.3 register
the process of which the client platform provides platform and vehicle static
information to the server platform, used for platform and vehicle identification
NOTE See A.2 of Annex A for the definition of vehicle static information.
3.4 upstream
data transmission direction from the client to the server
3.5 downstream
data transmission direction from the server to the client
3.6 vehicle login
login authentication before the client reports the vehicle status information to
the server
3.7 vehicle logout
the client confirms to the server that the vehicle data normally stops transmitting
and logs out from the platform
3.8 platform login
safety certification before the client platform reports the vehicle status
information to the server platform
3.9 platform logout
the client platform stops data transmission and logs out from the server platform
for some reason
3.10 encryption
the process of data transmission to encode the password
3.11 deciphering
the process of deciphering after the platform receives data
server platform should check the received data. When the check is correct, the
server platform shall do the correct response. When the check is wrong, the
server platform shall do the wrong response. When the information response of
the server platform is wrong, the client should re-send the real-time information
of the vehicle. It shall re-send every 1 min interval but shall not send after three
times of failure.
5.2.3 When the client platform reports information to the server platform, it
shall complete the assembly of the following data in accordance with 7.2.3.
drive motor data, vehicle data, fuel cell data, engine data, vehicle position data,
extreme data, alarm data before reporting. When there are platform exchange
data and user-defined data, it shall also report the platform exchange data and
user-defined data.
5.2.4 The time period in which the client platform reports information to the
server platform should be adjustable. The maximum time period of vehicle
information report shall not exceed 30s. When vehicle has the three-level alarm
of Table 17, it shall report the data 30s before and after the time point of failure.
And the information sampling period shall not exceed 1s. The data should be
transmitted in the form of re-reporting before the fault occurs.
5.2.5 When the data sent by terminal is encrypted, the client platform shall
conduct data deciphering first then re-encrypt it and send to the server platform.
There shall be no need to re-encrypt for inter-platform transmission if there is
no encryption requirement.
5.3 Report of statistics information
The statistics information should be transmitted to the server platform in the
form of FTP, HTTP, or HTTPS.
5.4 Connection disconnected
The server platform should disconnect the session with the client platform
based on the following conditions.
- TCP connection is interrupted.
The client platform should disconnect the session with the server platform
based on the following conditions.
- TCP connection is interrupted;
- TCP connection is normal. After the number of retries is reached, no
response is received.
5.5 Replacement mechanism
is transmitted, it shall use the unique
self-defined encoding.
21 Data unit encryption mode BYTE
0x01. data is not encrypted; 0x02.
data is encrypted by the RSA
algorithm; 0x03. data is encrypted by
the AES128 bit algorithm; "0xFE" for
exception, "0xFF" for invalid, others
are reserved
22 Data unit length WORD
The data unit length is the total
number of bytes of the data unit of
which the valid value range is 0 ~
24 Data unit - See Clause 7 for the format and definition of data unit
The
penultimate bit Verification code BYTE
Use the BCC (XOR) method. The
verification range starts from the first
byte of the command unit and is
exclusive with the next byte until the
previous byte of the verification code.
The verification code occupies one
byte. When the data unit is encrypted,
it should be encrypted before
verification, decryption after
verification.
6.3 Command unit
6.3.1 Command marks
The command marks shall be the unique identifier of the initiator. The definitions
o...
......
 
(Above excerpt was released on 2017-02-03, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/GBT32960.3-2016