乘用车夜视系统性能要求及试验方法 Performance requirements and testing methods for night vision system of passenger cars  ICS  43.040 CCS  T 40   中华人民共和国国家标准 GB/T 44174—2024 2024-07-2 4发布 2024-07-2 4实施     国家市场监督管理总局 国家标准化管理委员会 发 布目　　次 前言   ·····································································································   Ⅲ 1     范围   ··································································································   1 2     规范性引用文件   ······················································································   1 3     术语和定义   ···························································································   1 4     一般要求   ······························································································   2      4.1     功能要求   ·························································································   2      4.2     自检要求   ·························································································   2      4.3     系统状态提示要求   ···············································································   2      4.4     电磁兼容性要求   ·················································································   2 5     性能要求   ······························································································   2      5.1     图像显示延迟要求   ···············································································   2      5.2     图像显示质量要求   ···············································································   2      5.3     目标标示要求   ····················································································   2      5.4     纵向碰撞提示要求   ···············································································   2 6     试验方法   ······························································································   3      6.1     试验环境要求   ····················································································   3      6.2     试验设备要求   ····················································································   3      6.3     测量系统要求   ····················································································   3      6.4     图像显示延迟试验   ···············································································   3      6.5     图像显示质量和目标标示试验   ···································································   4      6.6     碰撞提示试验   ····················································································   5 附录A （资料性）    图像质量评价   ······································································   6      A.1     图像质量评价分级   ··············································································   6      A.2     图像质量评价结论   ··············································································   6 GB/T 44174—2024     Ⅰ 前　　言 本文件按照GB/T 1.1—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/TC 114）归口。 本文件起草单位：中国第一汽车集团有限公司、中国汽车技术研究中心有限公司、天津津航技术物 理研究所、神龙汽车有限公司、上海机动车检测认证技术研究中心有限公司、武汉高德红外股份有限公 司、吉利汽车研究院（宁波）有限公司、东风汽车集团股份有限公司、钧捷科技（北京）有限公司、 杭州海康汽车技术有限公司、常州星宇车灯股份有限公司、维宁尔（中国）电子有限公司。 本文件主要起草人：高长胜、张行、刘枫、张珊、李剑、于太、宋雪松、刘斌、张琳琳、黄晟、 金晨、程周、李世伦、林成琳、朱彩萍、杨鲁斌。   GB/T 44174—2024     Ⅲ 乘用车夜视系统性能要求及试验方法 1　范围   本文件规定了乘用车夜视系统的性能要求，描述了相应的试验方法。 本文件适用于安装有夜视系统的M1类汽车。 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。 GB 34660　道路车辆　电磁兼容性要求和试验方法 GB/T 39263　道路车辆　先进驾驶辅助系统（ADAS）　术语及定义 3　术语和定义   GB/T 39263界定的以及下列术语和定义适用于本文件。 3.1　 夜视系统　night vision system 在夜间或其他弱光行驶环境中为驾驶员提供视觉辅助或警告信息的系统。 3.2　 试验车辆　subject vehicle 装配有夜视系统及试验设备的被测车辆。 3.3　 目标　target 在夜视系统探测范围内的行人。 3.4　 纵向距离　longitudinal distance 试验车辆坐标系下，试验车辆前端最外缘与目标质心在试验车辆行驶方向上的投影距离。 3.5　 预碰撞时间　time to collision；TTC 同一时刻下纵向距离与在纵向距离投影上相对速度的比值。 3.6　 自检　self-check 系统对自身故障进行检查的功能。 GB/T 44174—2024     1 4　一般要求  4.1　功能要求  夜视系统可分成Ⅰ型、Ⅱ型和Ⅲ型，应满足以下要求： Ⅰ型夜视系统实时显示行驶环境； a） Ⅱ型夜视系统实时显示行驶环境和标示目标； b） Ⅲ型夜视系统实时显示行驶环境