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The main test items of the environmental test of automotive electronic products include:
(1) Power supply environment test: including DC, superimposed AC voltage, slow drop and slow rise of power supply voltage, power supply voltage termination, reverse voltage, open circuit test, short circuit protection, withstand voltage, insulation resistance and electromagnetic compatibility performance, etc.
The main test items of the environmental test of automotive electronic products include:
(1) Power supply environment test: including DC, superimposed AC voltage, slow drop and slow rise of power supply voltage, power supply voltage termination, reverse voltage, open circuit test, short circuit protection, withstand voltage, insulation resistance and electromagnetic compatibility performance, etc.
(2) Mechanical environment test: including sinusoidal vibration. Random vibration, mechanical shock, free fall, surface strength/scratch and surface friction, sand and gravel impact, etc.
(3) Climate environment test: including constant temperature test, temperature change test, temperature cycle test, ice-water shock test, salt spray test, damp heat cycle test, constant damp heat test, mixed gas overflow corrosion test, solar radiation test, etc.
(4) Chemical environmental test: refers to the components and parts that may come into contact with the specified chemical reagents should be able to resist the corrosion of these reagents.
The automobiles comprehensive experimental cabin provides automobiles manufacturers with tests of various performance indicators in product development. The test cabin is mainly composed of cabin transfer protection structure, air conditioning system, fresh air system, dynamometer system, exhaust emission system, solar irradiation system and other parts.
GB1835203-2005排放试验 | GB/T658-2000空调试验 | GB18233-2003燃料消耗试验 |
GB/T12542-1990热平衡试验 | GB/T12781-1991汽车供油系统气阻试验 | GB/T12546-1990汽车隔热通风试验 |
GB/T127826-1991汽车采暖试验 | GB/T12781-1991汽车供油系统气阻试验 | GB/T12546-1990汽车隔热通风试验 |
GB/T12544-1990******车速试验 | GB/T12543-1990加速试验 | GB/T12536-1990滑行试验 |
GB/T12546-1990最低稳定车速试验 |
汽车综合环境舱相关技术参数
1.温度控制测试 | （1）.温度范围：-40℃∽80℃；（2）温度精度：当汽车静止时，舱内气温均匀度保持±2℃受被试验车热负荷冲击时，能在设定温度内平稳控制，车前0.5米控制点气温波动<±1℃，一般控制点气温波动<±2℃，温度-40℃至60℃范围内舱壁上无凝结现象；（3）排放试验：绝对温度（H)5.5≤H≤12.2gH2o/kg空气（4）欧3/4VI型试验时：舱内整个试验期间湿度应足够低，以防止水在底盘测供机转鼓上凝结。（5）变温时：保证不结霜。（6）性能试验：试验舱气温25℃时，相对湿度50％RH±5％ |
2.试验负载范围 | (1)整车******外形尺寸：7000*2200*2100mm，可按要求订制；（2）整车******装备重量：4000KG；（3）发动机******功率：300KW；（4）整车******吸气量：720m3/h;(5)整车******排气量：3200m3h,排气管出口最高温度350℃；（6）整车******散热量：300KW；（7）转鼓跟踪风机：功率100KW，风速260KW/h风量300000m3/h.(8)新风供给量：-40℃∽10℃时，新风量大于1000m3/h；-10℃∽0℃时，新风量大于2500m3/h；0℃∽20℃时，新风量大于3500m3/h；20℃∽30℃时，新风量大于5000m3/h. |
3.湿度控制测试 | 满足QC/T658-2000标准要求：38±1℃时，湿度为50％RH±5％，连续运行>1小时；（2）高温试验技术要求：+15∽60±1℃时，湿度为68±5％RH，连续云还行；温度为30℃时，汽车急速状态，整车******散热量为25KW，******相对湿度达到90±5％RH，连续运行>1小时；（3）试验中环境温湿度，可跟踪负荷变动，能在设定湿度内平衡控制温度变化速率速测试：由常温升温至+60℃最长时间：不大于3H；→常温降温至-40℃最长时间：不大于3H。 |
4.舱内大气压测试 | 保证被试车稳定运行时舱内为微正压（短时负载），设有气压平衡装置，舱内日照测试： |
5.舱内操作测试 | （1）系统具有自动控制/手动控制的双重操作功能； |
6.安全监测系统 | 试验室除以压力平衡和氧浓度、废气浓度控制新风外，还配备了以下安全措施： |
7.尾气排放系统 | 汽车标准排放试验舱
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