谷雨,吕誉,黄小清,等.满足欧Ⅶ排放法规的轻型车制动磨损颗粒物测试装备开发[J].内燃机工程,2026,47(1):48-53.
满足欧Ⅶ排放法规的轻型车制动磨损颗粒物测试装备开发
Development of Testing Equipment for Brake Wear Particles of Light-Duty Vehicles Complying with Euro Ⅶ Emission Regulations
DOI：10.13949/j.cnki.nrjgc.2026.01.005
关键词:制动器  颗粒物  非尾气颗粒物  欧Ⅶ  测试装备  惯性试验台
Key Words:brake  particulate matter（PM）  non-exhaust PM  Euro Ⅶ  testing equipment  inertia test bench
基金项目:重庆市自然科学基金面上项目（CSTB2025NSCQ-GPX0567）；中国汽车工程研究院股份有限公司科技发展基金项目（0002KTCP20252380）
作者单位E-mail
谷雨* 中国汽车工程研究院股份有限公司 环保与健康测评研究中心，重庆 401122 guyu@caeri.com.cn 
吕誉* 中国汽车工程研究院股份有限公司 环保与健康测评研究中心，重庆 401122 lvyu01@caeri.com.cn 
黄小清 中国汽车工程研究院股份有限公司 环保与健康测评研究中心，重庆 401122 huangxiaoqing@caeri.com.cn 
徐辉 中国汽车工程研究院股份有限公司 环保与健康测评研究中心，重庆 401122 xuhui@caeri.com.cn 
曾光 中国汽车工程研究院股份有限公司 环保与健康测评研究中心，重庆 401122 zengguang@caeri.com.cn 
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摘要:为了实现欧Ⅶ排放法规对制动磨损颗粒物（brake wear particle， BWP）排放的测试需求，基于联合国全球技术法规第24号（United Nations Global Technical Regulation No.24， UN GTR-24）标准，开发了国内首台满足轻型车BWP排放检测的惯性试验台测试系统，并验证了测试系统对UN GTR-24标准的合规性要求。结果表明，该惯性测试实验台的系统级别颗粒背景浓度为：最大流量及最小流量下，直径超过10 nm的总颗粒物数量（记为TPN10）及直径超过10 nm的固体颗粒物数量（记为SPN10）均为0个/cm3。测试过程中冷却气流温度、湿度和流量均满足UN GTR-24标准的合规性要求；能量耗散偏差低于5%，远低于UN GTR-24标准对能量耗散的合规性要求。BWP排放测试前颗粒背景浓度SPN10为10.1个/cm3，TPN10为13.8个/cm3；测试后颗粒背景浓度SPN10为7.1个/cm3，TPN10为17.3个/cm3，均满足UN GTR-24标准要求，证明所开发的BWP测试系统能够用于欧Ⅶ法规开展BWP检测。采用开发的BWP测试系统，对某轻型燃油车的盘式制动器进行的排放测试结果表明，粒径不大于2.5 μm的颗粒物（PM2.5）质量、粒径不大于10 μm的颗粒物（PM10）质量、SPN10和TPN10的排放结果分别为1.6 mg/km、3.9 mg/km、6.03×109个/km、1.64×1010个/km。
Abstract:To meet the testing requirements for brake wear particle（BWP） emissions as specified in the Euro Ⅶ emission regulations， the first domestic inertia test bench testing system for BWP emission detection of light-duty vehicles was developed in accordance with the United Nations Global Technical Regulation No.24 （UN GTR-24） standard， and its compliance with the UN GTR-24 standard was verified. The results demonstrate that the system-level particle background concentration of the inertia test bench is as follows. Under the maximum flow rate and the minimum flow rate， both the total particle number with a diameter exceeding 10 nm （TPN10） and the solid particle number with a diameter exceeding 10 nm （SPN10） are 0 #/cm3. During the testing process， the temperature， humidity， and flow rate of the cooling air stream all meet the compliance criteria of the UN GTR-24 standard， and the energy dissipation deviation is less than 5%， which is significantly lower than the compliance requirement for the energy dissipation stipulated in the UN GTR-24 standard. The particle background concentrations prior to BWP emission testing are 10.1 #/cm3 for SPN10 and 13.8 #/cm3 for TPN10， respectively. After the testing， they are 7.1 #/cm3 for SPN10 and 17.3 #/cm3 for TPN10， which meet the requirements of the UN GTR-24 standard， confirming that the BWP testing system developed in this study can be applied for BWP detection under the Euro Ⅶ regulations. With the developed BWP testing system applied， emission tests were carried out on the disc brakes of a specific light-duty fuel vehicle， and the results indicate that the per-kilometer emissions for particulate matter with a cut-off diameter of 2.5 μm （PM2.5）， particulate matter with a cut-off diameter of 10 μm （PM10）， SPN10， and TPN10 are 1.6 mg/km， 3.9 mg/km， 6.03×109 #/km， and 1.64×1010 #/km， respectively.
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