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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard is under the jurisdiction of National Technical Committee on Automobiles of Standardization Administration of China (SAC/TC 114).
Methods and requirements of airbag system abuse test for automobile
1 Scope
This standard specifies the methods and requirements of airbag system abuse test for automobile.
This standard is applicable to Category M1 automobiles which are equipped with airbag system and of which the minimum ground clearance under mass in running order is greater than 100 mm.
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.
For the purposes of this document, the terms and definitions given in GB/T 19949.1 and the following apply.
3.1
airbag system
system consisting of one or more sensors, an airbag control unit, and an airbag module
3.2
airbag control unit
on-board control unit that controls the airbag system
3.3
deployment
inflation of the airbag
3.4
abuse
deployment of airbag that does not occur due to occupant protection
3.5
mass in running order
complete vehicle kerb mass plus 75 kg
3.6
door and lid or bonnet
system consisting of front and rear doors, engine hood, rear trunk lid, etc.
4 Requirements
The airbag equipped on the vehicle shall not be deployed after the tests specified in Sub-clauses 5.2, 5.3 and 5.4 are completed.
5 Test methods
5.1 Preconditioning of vehicle
5.1.1 The test vehicle shall be able to reflect the characteristics of this series of products, shall include the equipment normally installed and be in a state of normal operation.
5.1.2 Before each test, it shall be ensured that the drive system, suspension system (including tyres), steering and braking system, etc. of the test vehicle are in the state specified by the automobile manufacturer, the automobile engine is in the startup state or the ignition switch is in the "ON" position.
5.1.3 The mass of the test vehicle shall be the mass in running order.
5.2 Static test
5.2.1 Test of door and lid or bonnet
Make the door glass at the lowermost position. Without the help of tools, close each door and lid or bonnet of the vehicle one by one at the speed not less than 4 m/s at the lock body position (the speed at the moment of door closing). During the test, the other non-test doors and lids or bonnets of the vehicle are closed.
If the speed of the lock body cannot reach 4 m/s at the moment of door closing due to the special design of the door and lid or bonnet, the closing test of the corresponding door and lid or bonnet shall be carried out at the highest closing speed that the vehicle can reach.
5.2.2 Test of moving front lateral seat
The test personnel sit on the front lateral seat and move the seat forward and backward (the power seat, if any, shall be moved at the design speed). Move forward from the rearmost end of the seat travel to the most front, and backward from the most front of the seat travel to the rearmost end.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 5 Test methods
ICS 43.040.60 T 26 中华人民共和国国家标准 GB/T 37474-2019 汽车安全气囊系统误作用 试验的方法和要求 Methods and requirements of airbag system abuse test for automobile 2019-05-10 发布 2019-12-01 实施 国家市场监督管理总局 中国国家标准化管理委员会 发布 前言 本标准按照GB/T 1.1-2009给出的规则起草。 本标准由中华人民共和国工业和信息化部提出。 本标准由全国汽车标准化技术委员会（SAC/TC 114）归口。 汽车安全气囊系统误作用 试验的方法和要求 1 范围 本标准规定了汽车安全气囊系统误作用试验方法和要求。 本标准适用于安装了安全气囊系统且在行车质量状态下最小离地间隙大于100mm的M1类汽车。 2 规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。 GB/T 19949.1 道路车辆 安全气囊部件 第1部分：术语 JC/T899 混凝上路缘石 3 术语和定义 GB/T 19949.1界定的以及下列术语和定义适用于本文件。 3.1 安全气囊系统 airbag system 由一个或多个传感器、安全气囊控制器和安全气囊模块组成的系统。 3.2 安全气囊控制器 airbag control unit 控制安全气囊系统的车载控制单元。 3.3 展开 deployment 对气袋进行充气。 3.4 误作用 abuse 非乘员保护作用而发生的安全气囊展开。 3.5 行车质量 mass in running order 整车整备质量加75kg。 3.6 门盖系统 door and lid or bonnet 由前后车门、发动机罩、后行李箱盖等组成的系统。 4 要求 在完成5.2、5.3、5.4规定的各项试验后，车辆所装备的安全气囊均不应展开。 5 试验方法 5.1 车辆准备 5.1.1 试验车辆应能反映出该系列产品的特征，应包括正常安装的所存装备，并应处于能够正常运行状态。 5.1.2 每次试验前，确保试验车辆的传动系统、悬架系统（包括轮胎）、转向和制动系统等处于汽车制造商规定的状态，汽车发动机处于启动状态或使点火开关处于“ON”的位置。 5.1.3 试验车辆的质量应是行车质量。 5.2 静态试验 5.2.1 门盖试验 车门玻璃处于最下面的位置，不借助工具，以锁体位置不小于4m/s的速度（车门关闭瞬间的速度）分别逐一关闭车辆各个门盖系统。试验时，其他非试验车辆门盖系统均处于关闭状态。 由于门盖系统的特殊设计导致作关门瞬间，锁体的速度达不到4m/s的，试验时则以车辆能达到的最高关门速度进行相应门盖系统的关闭试验。 5.2.2 移动前排外侧座椅试验 试验人员坐在前排外侧座椅上，前后移动座椅（若是电动座椅，则以座椅设计速度移动）。向前是从座椅移动行程的最后端移至最前端，向后是从座椅移动行程的最前端移至最后端。 5.2.3 敲击试验 保持车身与行驶状态一致，在气囊传感器以及安全气囊控制器所对应车辆底部确定500mm×500mm的投影区域（如图1所示）内，在每个投影区域内任选5个点，试验人员使用1kg的橡胶锤在垂直于选定点的方向，每个点连续敲击不少于3次，每次间隔时间不大于5s，每次敲击载荷不小于20N。
