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GB/T 33191-2025: Technical conditions for computer control and interactive communication of motor vehicle safety inspection equipment
Status: Valid GB/T 33191: Evolution and historical versions
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| GB/T 33191-2025 | English | 1319 |
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Technical conditions for computer control and interactive communication of motor vehicle safety inspection equipment
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GB/T 33191-2025
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| GB/T 33191-2016 | English | 759 |
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Technical conditions for computer control and interactive communication with vehicle safety inspection equipment
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GB/T 33191-2016
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Basic data | Standard ID | GB/T 33191-2025 (GB/T33191-2025) | | Description (Translated English) | Technical conditions for computer control and interactive communication of motor vehicle safety inspection equipment | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | R86 | | Classification of International Standard | 43.180 | | Word Count Estimation | 66,650 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Older Standard (superseded by this standard) | GB/T 33191-2016 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB/T 33191-2025: Technical conditions for computer control and interactive communication of motor vehicle safety inspection equipment
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT33191-2025
ICS 43.180
CCSR86
National Standard of the People's Republic of China
Replaces GB/T 33191-2016
Motor vehicle safety technology testing equipment
Computer control and communication technology requirements
Released on August 29, 2025
Implementation on March 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Transmission interface and communication method 1
5 Data frame format 2
6 Communication Commands and Transmission 2
7 Communication Process 6
8 Communication Time Constraints 9
Appendix A (Normative) Tire Tread Depth Automatic Measurement Communication Process 10
Appendix B (Normative) Steering wheel maximum free rotation measurement communication process 12
Appendix C (Normative) Communication Process for Automatic Measurement of External Dimensions 14
Appendix D (Normative) Steering wheel lateral slip detection communication process 16
Appendix E (Normative) Wheel (Axle) Load Detection Communication Process 18
Appendix F (Normative) Braking Performance Test (Roller Reaction Type) Communication Process 20
Appendix G (Normative) Braking Performance Test (Tablet Type) Communication Process 26
Appendix H (Normative) Curb Mass/Unloaded Vehicle Mass Testing Communication Process 31
Appendix I (Normative) Headlamp Detection Communication Process 33
Appendix J (Normative) Communication Process for New Energy Vehicle Operation Safety Performance Testing 38
Appendix K (Normative) Service Braking Performance Test (Road Test) Communication Process 46
Appendix L (Normative) Parking Brake Performance Test (Traction Method) Communication Process 48
Appendix M (Normative) Speedometer Indication Error Detection Communication Process 51
Appendix N (Normative) Front Wheel Steering Angle Detection Communication Process 53
Appendix O (Informative) Trusted Communication Mechanism and Signature Algorithm 55
Reference 58
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 33191-2016 "Technical Requirements for Computer Control and Communication of Motor Vehicle Safety Technical Testing Instruments and Equipment" and
Compared with GB/T 33191-2016, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) The scope of application has been changed (see Chapter 1, Chapter 1 of the.2016 edition);
b) Deleted the requirements for the serial interface transmission rate range (see 3.2.3 of the.2016 edition);
c) Changed the technical requirements for network communication (see 4.2.2, 3.3 of the.2016 edition);
d) Deleted CANBUS and optical fiber from other interfaces (see 3.4 of the.2016 edition);
e) Added technical requirements for Universal Serial Bus (USB) interface and Bluetooth interface (see 4.2.3 and 4.2.4);
f) The data frame format has been changed (see Chapter 5, 5.2 of the.2016 edition);
g) Changed the directive classification (see 6.1, 4.2 of the.2016 edition);
h) Added the command to set session key (see 6.1);
i) Added parsing of signature error response instructions (see 6.2.1.4);
j) Added parsing of the Set Session Key command (see 6.2.2);
k) Added session flow (see 7.1);
l) Deleted the serial interface wiring method (see Appendix A of the.2016 edition);
m) Added the tire tread depth automatic measurement communication process (see Appendix A);
n) Added the communication process for measuring the maximum free rotation of the steering wheel (see Appendix B);
o) Added the communication process for automatic measurement of external dimensions (see Appendix C);
p) The communication process for detecting the lateral slip of the steering wheel has been modified (see Appendix D and Appendix C of the.2016 edition);
q) The communication process for brake performance testing (roller reaction type) has been modified (see Appendix F and Appendix E of the.2016 edition);
r) The communication process for brake performance testing (tablet type) has been modified (see Appendix G and Appendix F of the.2016 edition);
s) The communication process of the wheel deflection test station has been deleted (see Appendix G of the.2016 edition);
t) Added the communication process for curb weight/unladen weight testing (see Appendix H);
u) Added the communication process for new energy vehicle operation safety performance testing (see Appendix J);
v) Added the communication process for driving brake performance test (road test) (see Appendix K);
w) Added the communication process for parking brake performance test (traction method) (see Appendix L);
x) Added front wheel steering angle detection communication flow (see Appendix N);
y) Added trusted communication mechanism and signature algorithm (see Appendix O).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Technical Committee for Standardization of Motor Vehicle Operation Safety Technical Testing Equipment (SAC/TC364).
This document was drafted by. South China University of Technology, China Testing Technology Research Institute, Chengdu Product Quality Inspection Research Institute Co., Ltd.,
Shandong Jiaotong Vocational College, Shenzhen Anche Testing Co., Ltd., Guangzhou Jingu Intelligent Testing Technology Co., Ltd., Shenzhen Bang Intelligent Technology Group (Qingdao
Island) Co., Ltd., Guangzhou Huagong Motor Vehicle Inspection Technology Co., Ltd., Guangzhou Fuli Analytical Instrument Co., Ltd., Shandong Jianlan Information Technology Co., Ltd.
Co., Ltd., Anhui Qiangkeda Intelligent Technology Co., Ltd., Shijiazhuang Huayan Transportation Technology Co., Ltd., Sichuan Tourism Investment Digital Information Industry Development Co., Ltd.
Limited Liability Company, Sichuan Shangtou Information Technology Co., Ltd., Xihua University, and Chengdu Tianchuang Precision Industry Co., Ltd.
The main drafters of this document are. Hong Jialong, Li Hai, Guo Wensheng, Fan Yujian, Wang Baoqiang, Li Mindong, Zhang Zeqian, Ye Ming, Wang Yuehuai, Wan Zhengjun,
Wang Lefeng, Yang Huaxi, Di Jianhui, Huang Ping, Wang Hong, Zeng Linjun, Kong Wei, Chen Chunmei, Yang Luping, Liu Xingwei, Qin Yang, and Li Cui.
This document was first published in.2016 and this is the first revision.
Motor vehicle safety technology testing equipment
Computer control and communication technology requirements
1 Scope
This document specifies the transmission interface and communication mode, data frame format, and computer control and communication of motor vehicle safety technology testing equipment.
format, communication instructions and transmission, communication process and communication time constraints.
This document applies to instruments and equipment used for motor vehicle safety technical testing.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 42685-2023 Motor Vehicle Inspection Terminology
3 Terms and Definitions
The terms and definitions defined in GB/T 42685-2023 and the following apply to this document.
3.1
control system
Apply computer technology to realize the monitoring of vehicle inspection equipment status, vehicle inspection process management, inspection data collection and processing
A system for processing, exchanging and displaying related information.
4 Transmission interface and communication method
4.1 Interface Type
Motor vehicle inspection instruments and equipment should choose serial ports, network, universal serial bus (USB), Bluetooth and other interfaces.
4.2 Communication methods and technical requirements
4.2.1 Serial Communication
4.2.1.1 It should support standards such as RS-232-C, RS-422 or RS-485.
4.2.1.2 The underlying communication protocol shall adopt asynchronous serial mode, and the frame format shall be fixed as 1 start bit, 8 data bits, 1 stop bit, and no odd/even bits.
Even parity bit.
4.2.1.3 The transmission rate should be an integer multiple of 2400 bit/s and can be set according to actual needs.
4.2.2 Network Communication
4.2.2.1 It should support 10M/100M/1000M or higher transmission rate adaptive Ethernet, or be compatible with mainstream wireless LAN protocols
Wireless network.
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