计量器具对简易瞬态工况法测量结果的影响分析  

Analysis of the impact of measuring instruments on the results of the simplified transient test method

作　　者：徐津生 王海丽 徐静 杨大利 郭亮 XU Jinsheng;WANG Haili;XU Jing;YANG Dali;GUO Liang(Inner Mongolia Institute of Metrology and Testing,Hohhot 010050,China;Inner Mongolia Institute of quality and standardization,Hohhot 010010,China)

机构地区：[1]内蒙古自治区计量测试研究院,内蒙古呼和浩特010050 [2]内蒙古自治区质量和标准化研究院,内蒙古呼和浩特010010

出　　处：《工业计量》2025年第1期21-23,共3页Industrial Metrology

摘　　要：文章围绕使用简易瞬态工况法对汽油车污染物排放性能的测量展开。依据GB 18285—2018《汽油车污染物排放限值及测量方法(双怠速法及简易工况法)》标准,选取机动车排放污染物中的一氧化碳浓度作为研究对象,通过量值溯源与数学建模,运用不确定度评定方法,分析了由汽车排放气体测试仪、底盘测功机和流量分析仪等关键计量器具构成的检测系统对简易瞬态工况法测量结果的影响程度。This article focuses on the measurement of pollutant emissions performance of gasoline vehicles using the simplified transient test method.Based on the GB 18285—2018“Limits and measurement methods for emissions from gasoline vehicles under two-speed idle conditions and simple driving mode conditions”standard,this paper selects the concentration of carbon monoxide in motor vehicle exhaust pollutants as the research object.Through metrological traceability and mathematical modeling,using the method of uncertainty assessment,the impact of the detection system composed of key measuring instruments such as the vehicle emission gas analyzer,chassis dynamometer,and flow analyzer on the measurement results of the simplified transient test method is analyzed.

关 键 词：简易瞬态工况法 一氧化碳排放 不确定度评定 排放气体测试仪 底盘测功机 流量分析仪 

分 类 号：U46[机械工程—车辆工程]