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Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. GB/T 32960 consists of the following three parts under the general title Technical Specifications of Remote Service and Management System for Electric Vehicles: ——Part 1: General Principle; ——Part 2: On-board Terminal; ——Part 3: Communication Protocol and Data Format. This part is Part 2 of GB/T 32960. This part is developed in accordance with the rules given in GB/T 1.1-2009 This part was proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part is under the jurisdiction of the National Technical Committee on Automobiles of Standardization Administration of China (SAC/TC 114). Drafting organizations of this part: Neusoft Group Co., Ltd., SAIC Motor Corporation Limited, China Automotive Technology & Research Center, WuHan Intest Electronic Technology Co., LTD., Beijing Institute of Technology, Potevio New Energy Co., Ltd., Huawei Technology Co., Ltd., BYD Auto Industry Company Limited, Zhengzhou Yutong Bus Co., Ltd., Nantong Honghu Information Technology Co., Ltd., Brilliance Automotive Holdings Limited, Beijing Products Quality Supervision and Inspection Institute, Xinyuan Information Technology Co., Ltd. of Beijing Institute of Technology, Shenzhen BYD Daimler New Technology Co., Ltd., Beijing Automotive Technology Center Co., Ltd., Chongqing Changan New Energy Automobile Co., Ltd.,Beijing New Energy Vehicle Co., Ltd., Shanghai Eastone Automotive Technology Co., Ltd., Zhejiang Geely Automobile Research Institute Co., Ltd., WH EVT Inc., Pan Asia Technical Automotive Center, SAIC-GM-Wuling Automobile Co., Ltd. (SGMW), Guangzhou Toyota Motor Co, Ltd., SAIC VOLKSWAGEN, FAW-Volkswagen Automotive Co., Ltd. and South East (Fujian) Motor Corporation Ltd. Chief drafters of this part: Chen Hanjun, Wang Lei, Lu Chun, Wang Zhenpo, Ding Xiaohua, Meng Xiangfeng, Zhou Rong, Liu Peng, Mi Feng, Pu Jinhuan, Wu Zhiqiang, Fu Jing, Hou Yi, Zhang Wenjie, Liu Kai, Liu Yongjun, Jiang Feng, Lv Shujun, Wu Lihua, Zhao Yatao, Shan Chong, Wang Xu, Sun Qiang, Zhu Junjun, Wang Wenyang, Yang Xiantao, Xu Duo, Li Yuan, Gao Xianfeng, Peng Yonglun, Hu Fangfang, Guan Pengshu, Yang Yang, Xiong Xiaofei, Huang Zhicheng, Yu Xuetao, Xu Yan, Wang Xianjun, Ma Tao, Zheng Yanting, Liang Lijuan, Ban Dingdong, Qin Huaqiang, Luo Jianbin, Wang Zhenxing, Lu Jianxiang and Chen Ling. Technical Specifications of Remote Service and Management System for Electric Vehicles - Part 2: On-board Terminal 1 Scope This part of GB/T 32960 specifies the technical requirements and test methods for on-board terminal of remote service and management system for electric vehicles. This part is applicable to integrated and independent on-board terminals. 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. GB 4208 Degrees of Protection Provided by Enclosure (IP Code) GB/T 17619-1998 Limits and Methods of Testing for Immunity of Electrical/Electronic Sub-assemblies in Vehicles to Electromagnetic Radiation GB/T 18655-2010 Vehicles Boats and Internal Combustion Engines - Radio Disturbance Characteristics - Limits and Methods of Measurement for the Protection of On-board Receivers GB/T 19951-2005 Road Vehicles – Test Methods for Electrical Disturbances from Electrostatic Discharge GB/T 21437.2-2008 Road Vehicles - Electrical Disturbances from Conduction and Coupling - Part 2: Electrical Transient Conduction along Supply Lines Only GB/T 21437.3-2012 Road Vehicles - Electrical Disturbances from Conduction and Coupling - Part 3: Electrical Transient Transmission by Capacitive and Inductive Coupling Via Lines other than Supply Lines GB/T 28046.1-2011 Road Vehicles - Environmental Conditions and Testing for Electrical and Electronic Equipment - Part 1: General GB/T 28046.2-2011 Road Vehicles - Environmental Conditions and Testing for Electrical and Electronic Equipment - Part 2: Electrical Loads GB/T 28046.3-2011 Road Vehicles - Environmental Conditions and Testing for Electrical and Electronic Equipment - Part 3: Mechanical Loads GB/T 28046.4-2011 Road Vehicles - Environmental Conditions and Testing for Electrical and Electronic Equipment - Part 4: Climatic Loads GB/T 32960.1 Technical Specifications of Remote Service and Management System for Electric Vehicles - Part 1: General Principle GB/T 32960.3-2016 Technical Specifications of Remote Service and Management System for Electric Vehicles - Part 3: Communication Protocol and Data Format 3 Terminologies and Definitions For the purposes of this document, the following terminologies and definitions given in GB/T 32960.1 and the following ones apply. 3.1 integrated on-board terminal the on-board terminal designed on other device or system integrately 3.2 independent on-board terminal the on-board terminal designed as independent device or system independently 4 Requirements 4.1 General requirements 4.1.1 Integrated and independent on-board terminals shall meet those specified in this part. 4.1.2 The data stored in on-board terminal and the data appeared during the transmission between on-board terminal and enterprise service and management platform can be encrypted. Encrypted data shall be complete, accurate and undeniable. 4.2 Function requirements 4.2.1 Time and date Time and date shall be provided on on-board terminal. Time shall be accurate to second and date shall be accurate to day. Compared with standard time, the time error is ±5s within 24h. 4.2.2 Data collection On-board terminal shall collect the real-time data required by public service and management platform in GB/T 32960.3-2016. The frequency of real-time data collection shall not be less than once per second. 4.2.3 Data storage 4.2.3.1 On-board terminal shall store the collected real-time data in internal storage medium by the time interval of no more than 30s. Provided that the vehicle gives Level-3 alarm as specified in Table 17 of GB/T 32960.3-2016, on-board terminal shall store the collected real-time data in internal storage medium by the time interval of no more than 1s. 4.2.3.2 The capacity of storage medium in on-board terminal shall be able to store the real-time data of at least 7d. When the storage medium in on-board terminal is full, automatic cycle coverage function of internal storage data shall be provided. 4.2.3.3 The data stored in on-board terminal shall be readable. 4.2.3.4 In case of power breakdown and the on-board terminal stopping working, the on-board terminal shall keep the data which has been stored in internal medium before the power breakdown complete. 4.2.4 Data transmission 4.2.4.1 On-board terminal shall be capable of sending the collected real-time data to enterprise service and management platform. 4.2.4.2 The transmission time interval and data category for the real-time data uploaded from on-board terminal to enterprise service and management platform shall meet the relevant requirements of GB/T 32960.3-2016. 4.2.5 Data supplementary sending In case of communication failure, the on-board terminal shall store the collected real-time data in local-storage medium, and send the real-time data after communication is returned to normal. The supplementary data and supplementary way shall meet the relevant requirements of GB/T 32960.3-2016. 4.2.6 Register and activation On-board terminal shall be capable of supporting the register and activation in enterprise service and management platform by remote mode. 4.2.7 Independent operation On-board terminal shall be capable of operating independently when external supply is disconnected abnormally and guaranteeing the uploading of the data appeared 10min before the disconnection of external power supply to enterprise service and management platform. Note: Data refers to the related data specified in GB/T 32960.3-2016. 4.2.8 Remote control On-board terminal should be provided with functions like selfchecking, remote inquiry, remote parameter setting and remote upgrade. 4.3 Performance requirements 4.3.1 Electrical adaptability 4.3.1.1 Starting time For on-board terminal, the time from powered operation to realizing real-time data collection shall not exceed 120s. 4.3.1.2 Operating voltage range The operating voltage range of on-board terminal shall meet those specified in Table 1. All functions of on-board terminal during and after the test conducted by test method specified in 5.2.1.2 shall be Grade A defined in GB/T 28046.1-2011. Table 1 Operating Voltage Range In V DC power supply system Minimum operating voltage Maximum operating voltage 12 9 16 24 18 32 4.3.1.3 Overvoltage performance The overvoltage performance of on-board terminal shall meet those specified in 4.3, GB/T 28046.2-2011. 4.3.1.4 Power supply voltage ramp performance The power supply voltage ramp performance of on-board terminal shall meet those specified in 4.5, GB/T 28046.2-2011. 4.3.1.5 Reverse voltage performance The reverse voltage performance of on-board terminal shall meet those specified in the second case in 4.7, GB/T 28046.2-2011. 4.3.2 Environmental adaptation 4.3.2.1 Operating temperature range In case that the main power supply of vehicle supplies power, the operating temperature range is -30℃~+70℃. 4.3.2.2 Storage temperature range Storage temperature range: -40℃~+85℃. 4.3.2.3 Mechanical vibration resistance The mechanical vibration resistance of on-board terminal shall meet those specified in 4.1, GB/T 28046.3-2011. 4.3.2.4 Mechanical shock resistance The mechanical shock resistance of on-board terminal shall meet those specified in 4.2, GB/T 28046.3-2011 according to installation position of on-board terminal. 4.3.2.5 Enclosure protection performance The enclosure protection grade of on-board terminal shall be selected according to those specified in Table A.1 of GB/T 28046.4-2011. After the test, all functions of on-board terminal shall be Grade A defined in GB/T 28046.1-2011. 4.3.2.6 Low temperature performance The low temperature storage and operating performance of on-board terminal shall meet those specified in 5.1.1, GB/T 28046.4-2011. 4.3.2.7 High temperature performance The high temperature storage and operating performance of on-board terminal shall meet those specified in 5.1.2, GB/T 28046.4-2011. 4.3.2.8 Temperature gradient The temperature gradient of on-board terminal shall meet those specified in 5.2, GB/T 28046.4-2011. 4.3.2.9 Heat and moisture circulation The heat and moisture circulation of on-board terminal shall meet those specified in Test 1 in 5.6, GB/T 28046.4-2011. 4.3.3 Electromagnetic compatibility 4.3.3.1 Electrical transient conduction immunity along supply lines only The pulse severity of electrical transient conduction immunity test along supply lines only shall meet those specified in Grade III in Table A.1 or Table A.2 of GB/T 21437.2-2008. Test is conducted according to those specified in 5.2.3.1. Then all the functions of on-board terminal during and after the test shall meet the requirements of Table A.4 or Table A.5 in GB/T 21437.2-2008. 4.3.3.2 Coupling electric transient transmission immunity The pulse severity of coupling electric transient transmission immunity test shall meet those specified in Grade III in Table B.1 or Table B.2 of GB/T 21437.3-2012. Test is conducted according to those specified in 5.2.3.2. Then all the functions of on-board terminal during and after the test shall be Grade A defined in GB/T 28046.1-2011. 4.3.3.3 Radiated immunity The limit of radiated immunity shall meet the requirements of bulk current injection method and free land method in Table 1 of GB/T 17619-1998. Test is conducted according to those specified in 5.2.3.3. Then all the functions of on-board terminal during and after the test shall be Grade A defined in GB/T 28046.1-2011. 4.3.3.4 Electrostatic discharge immunity The limit of electrostatic discharge immunity shall meet the requirements of contact discharge ±6kV and air discharge ±15kV in Table B.3 of GB/T 19951-2005. Test is conducted according to those specified in 5.2.3.4. Then all the functions of on-board terminal during and after the test shall be Grade A defined in GB/T 28046.1-2011. 4.3.3.5 Radiated emission and conducted emission The limits of radiated and conducted emission of radio shall meet the requirements of Grade 3 in Table 5 or Table 6 (voltage method) in Chapter 6, GB/T 18655-2010. 4.3.4 Reliability The service life of on-board terminal shall not be less than 5 years. 5 Test Methods 5.1 Function test On-board terminal shall be verified item by item according to the functions specified in 4.2. 5.2 Performance test 5.2.1 Electrical adaptability test 5.2.1.1 Starting time The time from powered operation of on-board terminal to realizing real-time data collection is recorded. 5.2.1.2 Operating voltage range The input voltage of on-board terminal shall be controlled within the range specified in Table 1 and the on-board terminal function specified in 4.2 shall be tested. 5.2.1.3 Overvoltage performance The overvoltage performance of on-board terminal shall be tested according to the method in 4.3, GB/T 28046.2-2011. 5.2.1.4 Power supply voltage ramp performance The power supply voltage ramp performance of on-board terminal shall be tested according to the method in 4.5, GB/T 28046.2-2011. 5.2.1.5 Reverse voltage performance The reverse voltage performance of on-board terminal shall meet be tested according to the method in the second case in 4.7, GB/T 28046.2-2011. 5.2.2 Environmental adaptation test 5.2.2.1 Mechanical vibration resistance The mechanical vibration resistance of on-board terminal shall be tested according to the method in 4.1, GB/T 28046.3-2011. 5.2.2.2 Mechanical shock resistance The mechanical shock resistance of on-board terminal shall be tested according to the method in 4.2, GB/T 28046.3-2011 according to installation position of on-board terminal. 5.2.2.3 Enclosure protection performance The enclosure protection grade of on-board terminal shall be selected according to those specified in 4.3.2.3. Test shall be conducted in accordance with the method specified in GB 4208. 5.2.2.4 Low temperature performance The low temperature storage and operating performance of on-board terminal shall be tested according to the method in 5.1.1, GB/T 28046.4-2011. 5.2.2.5 High temperature performance The high temperature storage and operating performance of on-board terminal shall be tested according to the method in 5.1.2, GB/T 28046.4-2011. 5.2.2.6 Temperature gradient The temperature gradient of on-board terminal shall be tested according to the method in 5.2, GB/T 28046.4-2011. 5.2.2.7 Heat and moisture circulation The heat and moisture circulation of on-board terminal shall be tested according to the method in Test 1 in 5.6, GB/T 28046.4-2011. Foreword i 1 Scope 2 Normative References 3 Terminologies and Definitions 4 Requirements 5 Test Methods Annex A (Normative) Test Method of Temperature Alternating Endurance Life ICS 43.040.99 T 35 中华人民共和国国家标准 GB/T 32960.2—2016 电动汽车远程服务与管理系统技术规范 第2部分：车载终端 Technical specifications of remote service and management system for electric vehicles—Part 2：On-board terminal 2016-08-29发布 2016-10-01实施 中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会 发布 前言 GB/T 32960《电动汽车远程服务与管理系统技术规范》分为三个部分： ——第1部分：总则； ——第2部分：车载终端； ——第3部分：通信协议及数据格式。 本部分为GB/T 32960的第2部分。 本部分按照GB/T 1.1—2009给出的规则起草。 本部分由中华人民共和国工业和信息化部提出。 本部分由全国汽车标准化技术委员会(SAC/TC 114)归口。 本部分的起草单位：东软集团股份有限公司、上海汽车集团股份有限公司、中国汽车技术研究中心、武汉英泰斯特电子技术有限公司、北京理工大学、普天新能源有限责任公司、华为技术有限公司、比亚迪汽车工业有限公司、郑州宇通客车股份有限公司、南通鸿鹄信息技术有限公司、华晨汽车集团控股有限公司、北京市产品质量监督检验院、北京理工新源信息科技有限公司、深圳比亚迪戴姆勒新技术有限公司、北京汽车研究总院有限公司、重庆长安新能源汽车有限公司、北京新能源汽车股份有限公司、上海蓥石汽车技术有限公司、浙江吉利汽车研究院有限公司、武汉电动汽车技术开发有限公司、泛亚汽车技术中心有限公司、上汽通用五菱汽车股份有限公司、广汽丰田汽车有限公司、上汽大众汽车有限公司、一汽-大众汽车有限公司、东南(福建)汽车工业有限公司。 本部分的主要起草人：陈翰军、王磊、陆春、王震坡、丁晓华、孟祥峰、周荣、刘鹏、糜锋、浦金欢、吴智强、傅晶、侯毅、张文杰、刘凯、刘勇军、蒋峰、吕书军、吴丽华、赵亚涛、单冲、王旭、孙强、祝君君、王文扬、杨显涛、许多、李原、杲先锋、彭永伦、胡芳芳、关鹏姝、杨阳、熊晓飞、黄志诚、余学涛、徐艳、王贤军、马涛、郑燕婷、梁丽娟、班定东、覃华强、罗建斌、汪振兴、陆健翔、陈岭。 电动汽车远程服务与管理系统技术规范 第2部分：车载终端 1 范围 GB/T 32960的本部分规定了电动汽车远程服务与管理系统车载终端的技术要求和试验方法。 本部分适用于集成式和单体式车载终端。 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件，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 4208外壳防护等级(IP代码) GB/T 17619—1998机动车电子电器组件的电磁辐射抗扰性限值和测量方法 GB/T 18655—2010车辆、船和内燃机 无线电骚扰特性 用于保护车载接收机的限值和测量方法 GB/T 19951—2005道路车辆 静电放电产生的电骚扰试验方法 GB/T 21437.2—2008道路车辆 由传导和耦合引起的电骚扰 第2部分；沿电源线的电瞬态传导 GB/T 21437.3—2012道路车辆 由传导和耦合引起的电骚扰 第3部分：除电源线外的导线通过容性和感性耦合的电瞬态发射 GB/T 28046.1—2011 道路车辆 电气及电子设备的环境条件和试验 第1部分：一般规定 GB/T 28046.2—2011道路车辆 电气及电子设备的环境条件和试验 第2部分：电气负荷 GB/T 28046.3—2011道路车辆 电气及电子设备的环境条件和试验 第3部分：机械负荷 GB/T 28046.4—2011道路车辆 电气及电子设备的环境条件和试验 第4部分：气候负荷 GB/T 32960.1 电动汽车远程服务与管理系统技术规范 第1部分：总则 GB/T 32960.3—2016 电动汽车远程服务与管理系统技术规范 第3部分；通信协议及数据格式 3术语和定义 GB/T 32960.1界定的以及下列术语和定义适用于本文件。 3.1 集成式车载终端integrated on-board terminal 集成设计在车辆其他装置或系统的车载终端。 3.2 单体式车载终端independent on-board terminal 单独设计为独立的装置或系统的车载终端。 4要求 4.1 一般要求 4.1.1 集成式和分体式车载终端应满足本部分的要求。 4.1.2存储在车载终端内的数据及车载终端与企业平台传输过程中的数据是可加密的，加密数据应具有完整性、准确性和不可否认性。 4.2 功能要求 4.2.1时间和日期 车载终端应提供时间和日期。时间应精确到秒，日期应精确到日。 与标准时间相比时间误差24 h内±5 s。 4.2.2数据采集 车载终端应按照GB/T 32960.3—2016中公共平台需要的实时数据进行采集，实时数据的采集频次不应低于1次/s。 4.2.3 数据存储 4.2.3.1 车载终端应按照最大不超过30 s时间间隔将采集到的实时数据保存在内部存储介质中。当车辆出现GB/T 32960.3—2016表17的3级报警时，车载终端应按照最大不超过1 s时间间隔将采集到的实时数据保存在内部存储介质中。 4.2.3.2 车载终端内部存储介质容量应满足至少7 d的实时数据存储。车载终端内部存储介质存储满时，应具备内部存储数据的自动循环覆盖功能。 4.2.3.3 车载终端内部存储的数据应具有可读性。 4.2.3.4车载终端断电停止工作时，应完整保存断电前保存在内部介质中的数据不丢失。 4.2.4数据传输 4.2.4.1 车载终端应具有将采集到的实时数据发送到企业平台的功能。 4.2.4.2车载终端上传到企业平台实时数据的传输时间间隔及数据种类应符合GB/T 32960.3—2016的相关要求。 4.2.5数据朴发 当通信异常时，车载终端应将采集的实时数据存储到本地存储介质中，等待通信恢复正常后进行实时数据的补发，补发数据及方式应符合GB/T 32960.3—2016的相关要求。 4.2.6注册和激活 车载终端应具有支持远程方式在企业平台上注册、激活功能。 4.2.7独立运行 车载终端在外部供电异常断开后，仍可以独立运行，且至少保障外部供电断开前10 min的数据上传到企业平台。 注：数据指GB/T 32960.3—2016中规定的相关数据。 4.2.8远程控制 车载终端宜有自检、远程查询、远程参数设置和远程升级等功能。 4.3性能要求 4.3.1 电气适应性能 4.3.1.1启动时间 车载终端从加电运行到实现实时数据采集的时间不应超过120 s。 4.3.1.2工作电压范围 车载终端工作电压范围应满足表1要求，按照5.2.1.2的试验方法，试验中、试验后车载终端所有功能应处于GB/T 28046.1—2011定义的A级。 表1 工作电压范围 单位为伏特 直流供电系统 最低工作电压 最高工作电压 12 9 16 24 18 32 4.3.1.3过电压性能 车载终端过电压性能应符合GB/T 28046.2—2011中4.3的要求。 4.3.1.4供电电压缓降和缓升性能 车载终端供电电压缓降和缓升性能应符合GB/T 28046.2—2011中4.5的要求。 4.3.1.5反向电压性能 车载终端反向电压性能应符合GB/T 28046.2—2011中4.7的第2种情况的要求。 4.3.2环境适应性能 4.3.2.1工作温度范围 在车辆主电源供电情况下，工作温度范围：-30℃～+70℃。 4.3.2.2贮存温度范围 贮存温度范围：-40℃～+85℃。 4.3.2.3耐机械振动性能 车载终端耐机械振动性能应符合GB/T 28046.3—2011中4.1的要求。 4.3.2.4耐机械冲击性能 车载终端耐机械冲击性能根据车载终端安装位置应符合GB/T 28046.3—2011中4.2的要求。 4.3.2.5外壳防护性能 车载终端外壳防护等级根据GB/T 28046.4—2011表A.1进行选择，试验后车载终端所有功能应处于GB/T 28046.1—2011定义的A级。 4.3.2.6 低温性能 车载终端低温贮存和运行性能应符合GB/T 28046.4—2011中5.1.1的要求。 4.3.2.7 高温性能 车载终端高温贮存和运行性能应符合GB/T 28046.4—2011中5.1.2的要求。 4.3.2.8温度梯度性能 车载终端温度梯度性能应符合GB/T 28046.4—2011中5.2的要求。 4.3.2.9湿热循环性能 车载终端湿热循环性能应符合GB/T 28046.4—2011中5.6试验1的要求。 4.3.3电磁兼容性能 4.3.3.1 沿电源线的电瞬态传导抗扰度 沿电源线的电瞬态传导抗扰度试验脉冲严酷程度应符合GB/T 21437.2—2008表A.1或表A.2中Ⅲ级的要求。按照5.2.3.1进行试验，试验中、试验后车载终端所有功能应符合GB/T 21437.2—2008表A.4或表A.5的要求。 4.3.3.2耦合电瞬态发射抗扰度 耦合电瞬态发射抗扰度试验脉冲严酷程度应符合GB/T 21437.3—2012表B.1或表B.2中Ⅲ级的要求。按照5.2.3.2进行试验，试验中、试验后车载终端所有功能应处于GB/T 28046.1—2011定义的A级。 4.3.3.3辐射抗扰度 辐射抗扰度限值应符合GB/T 17619—1998表1中的大电流注入法和自由场法的要求。按照5.2.3.3进行试验，试验中、试验后车载终端所有功能应处于GB/T 28046.1—2011定义的A级。 4.3.3.4静电放电抗扰度 静电放电抗扰度限值应符合GB/T 19951—2005表B.3中接触放电±6 kV和空气放电±15 kV的要求。按照5.2.3.4进行试验，试验后车载终端所有功能应处于GB/T 28046.1—2011定义的A级。 4.3.3.5辐射发射和传导发射性能 无线电辐射发射和传导发射限值应符合GB/T 18655—2010第6章电压法表5或表6的等级3要求。 4.3.4可靠性性能 车载终端使用寿命应不低于5年。 5试验方法 5.1功能测试 车载终端应按照4.2规定的功能逐项进行验证。 5.2性能测试 5.2.1 电气适应性能试验 5.2.1.1 启动时间 记录从车载终端加电运行到实现实时数据采集的时间。 5.2.1.2工作电压范围 控制车载终端的输入电压为表1规定的范围，测试4.2规定的车载终端功能。 5.2.1.3过电压性能 车载终端过电压性能按照GB/T 28046.2—2011中4.3的试验方法进行。 5.2.1.4供电电压缓降和缓升性能 车载终端供电电压缓降和缓升性能按照GB/T 28046.2—2011中4.5的试验方法进行。 5.2.1.5反向电压性能 车载终端反向电压性能按照GB/T 28046.2—2011中4.7的第2种情况的试验方法进行。 5.2.2环境适应性能试验 5.2.2.1 耐机械振动性能 车载终端的耐机械振动性能按照GB/T 28046.3—2011中4.1的试验方法进行。 5.2.2.2耐机械冲击性能 车载终端耐机械冲击性能根据车载终端安装位置按照GB/T 28046.3—2011中4.2的试验方法进行。 5.2.2.3外壳防护性能 车载终端外壳防护性能等级按照4.3.2.3要求进行选择。试验按照GB 4208规定的试验方法进行。 5.2.2.4低温性能 车载终端低温贮存和运行性能按照GB/T 28046.4—2011中5.1.1的试验方法进行。 5.2.2.5 高温性能 车载终端高温贮存和运行性能按照GB/T 28046.4—2011中5.1.2的试验方法进行。 5.2.2.6温度梯度性能 车载终端温度梯度性能按照GB/T 28046.4—2011中5.2的试验方法进行。 5.2.2.7湿热循环性能 车载终端湿热循环性能按照GB/T 28046.4—2011中5.6试验1的试验方法进行。 5.2.3 电磁兼容性能试验 5.2.3.1 沿电源线的电瞬态传导抗扰度 沿电源线的电瞬态传导抗扰度试验按照GB/T 21437.2—2008中第4章规定的方法进行，试验时试样处于工作状态，试验脉冲选择1，2a，3a，3b。试验脉冲1，2a各进行5 000个脉冲，试验脉冲3a，3b试验时间各为1 h。 5.2.3.2耦合电瞬态发射抗扰度 耦合电瞬态发射抗扰度试验按照GB/T 21437.3—2012中第3章规定的方法进行，试验时试样处于工作状态，试验方法选择CCC方法和ICC方法。 5.2.3.3辐射抗扰度 辐射抗扰度试验的大电流注入法按照GB/T 17619—1998中9.5规定的试验方法进行，自由场法按照GB/T 17619—1998中9.3规定的试验方法进行。 5.2.3.4静电放电抗扰度 静电放电抗扰度试验按照GB/T 19951—2005中第7章的要求进行。试样不通电，放电点选择为安装操作时人员易触及的表面进行放电试验，试验速率为5 s放电1次，每个放电点应对正极性或负极性各放电5次。 5.2.3.5辐射发射和传导发射 无线电辐射发射和传导发射试验按照GB/T 18655—2010中第6章规定的电压法试验方法进行。 5.2.4可靠性试验 车载终端可靠性试验方法采用附录A温度交变耐久寿命试验方法。 附录A (规范性附录) 温度交变耐久寿命试验方法 A.1试验方法 本试验用于较快速地验证试验晶的寿命是否满足要求。试验时，在最高和最低试验温度时试验品工作模式应为工作状态，其余时间试验品工作模式可以为工作状态或通电待机状态。温度曲线如图A.1所示。最高、最低试验温度为Tmax、Tmin。温度梯度为4℃/min。试验品在达到最高、最低工作温度时需要保持的时间为10 min。试验循环次数及时间按照A.2描述进行计算。 温度 Tmax(最高温度) TRT(常温) Tmin(最低温度) 工作状态 时间 图A.1 温度交变耐久寿命试验温度曲线 A.2温度交变耐久寿命试验循环次数及时间 试验采用Coffin-Manson加速模型。为了计算温度交变耐久寿命试验的试验持续时间，需要考虑试验品场地平均温度变化ΔTTest和场地使用寿命期间的温度循环次数NTempZyMenFeld(场地温度循环)。 按式(A.1)计算Coffin-Manson模型的加速度系数与场地平均温度变化的关系： …………………………(A.1) 式中： ACM——Coffin-Manson模型的加速度系数； ΔTTest——在一次试验循环期间的温差(ΔTTest=Tmax-Tmin)； ΔTFeld——在场地使用寿命期间的平均温差； c——Coffin-Manson模型参数，在本部分中c固定设置为2.5。 按照式(A.2)计算试验循环的总次数： ………………………(A.2) 式中： NPruf——试验循环不可或缺的次数； NTempZyklenFeld——(场地温度循环)场地使用寿命期间的温度循环次数； ACM——按式(A.1)Coffin-Manson模型计算的加速度系数。 |
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| GB/T 32960.2-2016, GB 32960.2-2016, GBT 32960.2-2016, GB/T32960.2-2016, GB/T 32960.2, GB/T32960.2, GB32960.2-2016, GB 32960.2, GB32960.2, GBT32960.2-2016, GBT 32960.2, GBT32960.2 |