标准解读

《GB/T 44131-2024 燃料电池电动汽车碰撞后安全要求》这一标准旨在为燃料电池电动汽车在遭遇碰撞事故后的安全性提供规范。该标准涵盖了车辆设计、制造及测试等多个方面,以确保此类车辆即使在发生交通事故的情况下也能最大程度地保障乘员及其他道路使用者的安全。

标准首先定义了适用范围,明确指出其适用于使用氢作为能源的燃料电池电动汽车,并且针对不同类型的碰撞情况提出了具体的安全性能要求。这包括但不限于正面碰撞、侧面碰撞以及后部碰撞等场景下的安全评估方法与指标。

对于碰撞后的电气系统安全,《GB/T 44131-2024》强调了高压系统的断电机制,要求车辆在检测到严重碰撞时能够自动切断高压电源供应,防止因短路等原因引发火灾或电击风险。此外,还规定了关于氢气泄漏控制的具体措施,比如设置有效的气体探测装置来监测潜在的泄漏情况,并采取适当手段(如开启通风扇)降低车内氢气浓度至安全水平。

在结构完整性方面,标准对车身结构强度、变形程度等方面设定了严格限制,确保即便是在强烈撞击下,乘客舱空间仍能保持足够完整,从而保护车内人员免受伤害。同时,对于车内外突出部件的设计也做出了相应指导,避免这些部分成为造成二次伤害的因素。


如需获取更多详尽信息,请直接参考下方经官方授权发布的权威标准文档。

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文档简介

ICS

43.020

CCS

T09

中华人民共和国国家标准

GB/T44131—2024

燃料电池电动汽车碰撞后安全要求

Post-crashsafetyrequirementforfuelcellelectricvehicle

2024-05-28发布2024-05-28实施

国家市场监督管理总局发布

国家标准化管理委员会

GB/T44131—2024

目次

前言

·····································································································

1

范围

··································································································

1

2

规范性引用文件

······················································································

1

3

术语和定义

···························································································

1

4

测量参数、单位、准确度和分辨率

···································································

2

5

安全要求

······························································································

3

5.1

通则

······························································································

3

5.2

碰撞后CHSS安全要求

··········································································

3

5.3

防触电保护要求

·················································································

4

5.4

其他要求

·························································································

4

6

试验程序

······························································································

4

6.1

试验前车辆准备

·················································································

4

6.2

碰撞试验

·························································································

4

7

试验方法

······························································································

5

7.1

CHSS碰撞后燃料泄漏测试方法

·································································

5

7.2

碰撞后封闭空间或半封闭空间气体浓度测试

····················································

7

7.3

滑车试验

·························································································

8

7.4

冲击试验

·························································································

9

附录A(资料性)

压力和温度传感器核查程序

······················································

10

A.1

样车检查

·······················································································

10

A.2

温度传感器准确度核查

········································································

10

A.3

温度与压力关系准确度核查

···································································

10

参考文献

································································································

11

GB/T44131—2024

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分:标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中华人民共和国工业和信息化部提出。

本文件由全国汽车标准化技术委员会(SAC/TC114)归口。

本文件起草单位:襄阳达安汽车检测中心有限公司、中国汽车技术研究中心有限公司、丰田汽车

(中国)投资有限公司、北汽福田汽车股份有限公司、现代汽车研发中心(中国)有限公司、东风汽车

集团股份有限公司、上汽大通汽车有限公司、中汽研汽车检验中心(天津)有限公司、同济大学、中国

第一汽车股份有限公司、广州汽车集团股份有限公司、长城汽车股份有限公司、深蓝汽车科技有限公

司、北京亿华通科技股份有限公司、招商局检测车辆技术研究院有限公司、中国重型汽车集团有限公

司、中车时代电动汽车股份有限公司。

本文件主要起草人:李强红、兰昊、王丹、许诺、刘永亮、于敏、刘桂彬、何云堂、谢潇、

史建鹏、刘毅、王青贵、朱海涛、郑天雷、侯永平、柳邵辉、韩令海、曾繁波、李普明、陈明、刘昱、

吴少华、陈金锐、张国强、杨超、梁乔丹、孟祥菊、李伟聪。

GB/T44131—2024

燃料电池电动汽车碰撞后安全要求

1范围

本文件规定了燃料电池电动汽车碰撞后的特殊安全要求,描述了相应的试验方法。

本文件适用于使用压缩气态氢且车载氢系统公称工作压力不超过70MPa的M类和N类燃料电池电

动汽车。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中,注日期的引用文

件,仅该日期对应的版本适用于本文件;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。

GB11551汽车正面碰撞的乘员保护

GB/T15089机动车辆及挂车分类

GB17578

客车上部结构强度要求及试验方法

GB/T18385电动汽车动力性能试验方法

GB/T19596电动汽车术语

GB20071汽车侧面碰撞的乘员保护

GB20072乘用车后碰撞燃油系统安全要求

GB/T24548燃料电池电动汽车术语

GB/T24549—2020燃料电池电动汽车安全要求

GB26512—2021商用车驾驶室乘员保护

GB/T26990燃料电池电动汽车车载氢系统技术条件

GB/T31498—2021电动汽车碰撞后安全要求

GB38032—2020电动客车安全要求

ISO6487:2015道路车辆碰撞试验中的测量技术装备(Roadvehicles—Measurementtech﹘

niquesinimpacttests—Instrumentation)

3术语和定义

GB/T19596、GB/T24548、GB/T24549—2020、GB/T26990、GB/T15089界定的以及下列

术语和定义适用于本文件。

3.1

主关断阀mainshut-offvalve

用来关断从储氢气瓶向下游供应氢气的阀。

[来源:GB/T24549—2020,3.1,有修改]

3.2

封闭空间或半封闭空间enclosed

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