GB/T 24551-2021 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 24551-2021 | English | 185 |
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Safety belt reminder for motor vehicles
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| GB/T 24551-2009 | English | 70 |
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GB/T 24551-2021: Safety belt reminder for motor vehicles---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/GBT24551-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
CCS T 09
Replacing GB/T 24551-2009
Safety Belt Reminder for Motor Vehicles
Issued on. DECEMBER 31, 2021
Implemented on. JULY 01, 2022
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 5
3 Terms and Definitions... 5
4 Technical Requirements... 7
5 Test Methods... 9
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This Document replaced GB/T 24551-2009 Safety Belt Reminder for Motor Vehicles.
Compared with GB/T 24551-2009, the major technical changes of this Document are as follows
besides the structural adjustment and editorial modifications.
--- Change the “Scope” (see Clause 1 of this Edition; Clause 1 of 2009 Edition);
--- Add the terms and definitions of visual warning, audible warning, vehicle in normal
operation, passenger detection device, interval time, and intermittent time (see 3.4, 3.5,
3.7, 3.8, 3.9, 3.10 of this Edition);
--- Add the partial technical requirements for visual warning, audible warning, first level
warning, and second level warning (see 4.2.1, 4.2.2, 4.2.3, 4.2.4 of this Edition);
--- Change the driving conditions for the activation of the second level warning (see 4.2.4.1
of this Edition; 4.2 of 2009 Edition);
--- Add the technical requirements for the seat belt reminder device for the driver and the
passengers in the same row, and the rear passenger seat belt reminder device (see 4.3 and
4.4 of this Edition);
--- Add the test methods such as the first level warning, the second level warning, and the
test duration (see 5.1, 5.2, 5.3 of this Edition).
Please note some contents of this Document may involve patents. The issuing agency of this
Document shall not assume the responsibility to identify these patents.
This Document was proposed by the Ministry of Industry and Information Technology of PRC.
This Document shall be under the jurisdiction of National Technical Committee of Auto
Standardization (SAC/TC 114).
Drafting organizations of this Document. China Automotive Technology and Research Center
Co., Ltd.; Anhui Jianghuai Automobile Group Corp., Ltd.; China FAW Group Co., Ltd.;
Shanghai AnWen Automotive Electronics Co., Ltd.; CATARC Automotive Test Center
(Ningbo) Co., Ltd.; Chongqing Changan Automobile Company Limited; Pan Asia Technical
Automotive Center Co., Ltd.; FAW-Volkswagen Automotive Co. Ltd.; Xiangyang Daan
Automobile Testing Center Co., Ltd.; Shanghai Motor Vehicle Inspection Certification Tech
Innovation Center Co., Ltd.; Geely Automobile Research Institute (Ningbo) Co., Ltd.; SAIC
Volkswagen Automotive Co., Ltd.; SAIC Motor Corporation Limited; Beiqi Foton Motor Co.,
Ltd.; SAIC-GM-Wuling Automobile Co., Ltd.; Dongfeng Nissan Passenger
Vehicle Company; Suzhou Qiwei Electronic Co., Ltd.; Dayun Automobile Co., Ltd.; BAIC
Motor Corporation., Ltd.; Dongfeng Motor Group Co., Ltd.; Toyota Motor (China) Investment
Co., Ltd.; Daimler Greater China Limited; Volkswagen (China) Investment Co., Ltd.; Nissan
(China) Investment Co., Ltd.; Ford China Co., Ltd.; BMW China Services Ltd.; Jaguar Land
Rover (China) Investment Co., Ltd.; Volvo Car (Asia Pacific) Investment Holding Co., Ltd.;
Peugeot Citroen (China) Automotive Trade Co., Ltd.; and Hyundai Motor Technology &
Engineering Center (China) Ltd.
Chief drafting staffs of this Document. Sun Zhendong, Lou Lei, Peng Weiqiang, Cui Dong,
Chen Liangxiao, Tang Hongbin, Zhang Haitao, Yu Chengxiang, Mao Rongjie, Ba Shuai, Zhang
Xiaoqian, Zhang Huiyun, Jiang Zeqi, Liu Yanfei, Gu Hanyi, Jing Shaonan, Wang Junlin, Guo
Jianxue, Chen Changqin, Dai Guangwei, Wang Nian, Hao Weiquan, Fan Chao, Guo Luxi,
Zheng Wenjie, Yang Fan, Xu Shimeng, Liu Lin, Jiang Weifang, Wang Yazhen, You Lizhong,
Dong Qianqian, Huang Fang, Zhang Zhanzhan, and Yin Weiyang.
The historical editions replaced by this Document are as follows.
--- GB/T 24551-2009 was first-time published in 2009;
--- It is first-time revised hereby.
Safety Belt Reminder for Motor Vehicles
1 Scope
This Document specifies the terms and definitions, requirements and test methods of seat belt
reminder for motor vehicles.
This Document applies to the seat belt reminder for the driver's seat position and the passenger
seat position in the same row with the driver's seat of the Categories M and N vehicles; and the
seat belt reminder for the rear passenger seat position of the Categories M1 and N1 vehicles;
the seat belt reminder for other seat positions can be implemented by reference.
2 Normative References
The provisions in following documents become the provisions of this Document through
reference in this Document. For the dated documents, only the versions with the dates indicated
are applicable to this Document; for the undated documents, only the latest version (including
all the amendments) is applicable to this Document.
GB 4094-2016 Motor Vehicles - Symbols for Controls, Indicators and Tell-Tales
3 Terms and Definitions
For the purposes of this Document, the following terms and definitions apply.
3.1 First level warning
A visual warning that is activated when the ignition switch or master switch is turned on
(vehicle drive running or not), in the "ON" or "READY" state (or equivalent), and any
passenger in the vehicle is not wearing a seat belt.
3.2 Second level warning
Visual and audible warnings that are activated when the vehicle is moving and any passengers
in the vehicle are not wearing or opening their seat belts.
3.3 Safety-belt reminder
The system that warns the driver when any passenger in the vehicle is not wearing a seat belt,
consisting of a detection device for not wearing a seat belt and two-level warnings (first level
warning and second level warning).
3.4 Visual warning
Warnings of visual signals (indicators, flashing lights, visual symbols, messages).
3.7 Vehicle in normal operation
The forward speed of the vehicle is greater than 10km/h.
3.8 Passenger detection device
The device that consists of a detection unit and a connecting wire harness (or communication
system), and is used to detect the occupancy of the seat.
3.9 Interval time
The time between two adjacent beats in an audible warning signal (shown in Figure 1).
3.10 Intermittent time
The time between two adjacent cue notes within each beat in the audible warning signal (as
Single beat Single beat
4 Technical Requirements
4.1 General requirements
4.2 Test Requirements
4.2.1 Visual warning
4.2.2 Audible warning
4.2.2.1 The audible warning signal shall be a constant sound or intermittent (with intermittent
time no greater than 1s) sound signal, or continuous language warning information. If language
information is used, the manufacturer shall ensure that the language warning can be set to
Chinese voice.
or
4.2.2.2 The audible warning signal shall be easily recognized by the driver.
4.2.3 First level warning
4.2.4 Second level warning
4.2.4.1 The driving conditions for the activation of the second level warning shall be any one
or more combinations of the following conditions.
4.2.4.2 When the vehicle is not in normal operation and any door is opened or there is no
passenger in the seat for which the warning is activated, the activated driving conditions listed
in 4.2.4.1 above can be reset (recalculated by zeroing).
4.3 Seat belt reminder for driver and passengers in the same row
4.3.1 The seat belt reminder for the driver and the passengers in the same row shall meet the
requirements of 4.2.
4.3.2 When the seat belt of any passenger in the front row is not fastened or the seat belt is
unfastened while the vehicle is in normal operation, and the activation driving conditions
described in 4.2.4.1 are met, the second level warning shall be activated.
4.4 Seat belt reminder for the rear passengers
4.4.1 The seat belt reminder for rear passengers shall meet the requirements of 4.2.
5 Test Methods
5.1 First level warning
Activation of first level warning shall be tested individually for each seat as follows.
5.2.1 Test conditions
Drive the vehicle for the test using one or more of the following conditions.
c) The test vehicle drives forward for more than 60s.
5.2.2 Driver's seat test
5.2.2.1 In the condition that the seat belt is not fastened before the vehicle is driven, the test
shall be carried out according to the following procedures.
5.2.3 Test on passenger seat in the same row with driver and rear passenger seat with
passenger detection device
5.2.3.1 In the condition that the seat belt is not fastened before the vehicle is driven, the test of
each passenger seat shall be carried out according to the following procedures.
5.2.3.2 In the condition that the seat belt is unfastened when the vehicle is running, the test of
each passenger seat shall be carried out according to the following procedures.
5.2.4 Test on the rear passenger seat without passenger detection device
In the condition that the seat belt is unfastened when the vehicle is driving, and the test of each
passenger seat is carried out according to the following procedures.
5.3 Test duration
The test duration of the first level warning shall be at least the minimum time specified in 4.2.3.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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