非道路柴油机NRTC试验NO x排放测量不确定度分析  

Uncertainty Evaluation of NO x Emissions Measurement Results During NRTC Test from Non-road Diesel Engines

作　　者：唐新华 刘波 TANG Xinhua;LIU Bo(Chongqing Aerospace Polytechnic,Chongqing 400021,China;China Merchants Testing Vehicle Technology Research Institute Co.,Ltd.,Chongqing 401122,China)

机构地区：[1]重庆航天职业技术学院,重庆4000211 [2]招商局检测车辆技术研究院有限公司,重庆401122

出　　处：《拖拉机与农用运输车》2025年第1期33-36,55,共5页Tractor & Farm Transporter

基　　金：重庆市教育委员会科学技术研究项目(KJQN202003004);重庆市高等职业教育教学改革研究项目(Z213051)。

摘　　要：在汽车检测过程中,不确定度的评估一直是难点问题,特别是影响因素比较多的排放检测领域。本文以非道路柴油机为研究对象,依据《测量不确定度评定与表示技术规范》(JJF 1059.1—2012)标准规定及《汽车和摩托车检测领域典型参数的测量不确定度评估指南》(CNAS-GL023:2018),按照《非道路柴油移动机械污染物排放控制技术要求》(HJ 1014—2020)中NRTC工况,对引起NO x排放测量结果不确定度的因素进行了分析。通过建立数学模型,最终得到NO x排放量的不确定度评定结果。Uncertainty evaluation is a difficult problem in the automobile testing,In this paper,non-road diesel engines are taken as the research object.According to the Evaluation and Expression of Uncertainty in Measurement(JJF 1059.1—2012)and the Guidelines and Illustration on Uncertainty Estimation in the Field of Automobile and Motorcycle Testing(CNAS-GL023:2018),according to the NRTC in the Emission Control technical requirements of non-road diesel mobile machinery(HJ 1014—2020),the factors causing the uncertainty of the measurement results were analyzed,Through the establishment of mathematical model,finally evaluation results of uncertainty of NO x emissions were obtained.

关 键 词：非道路用柴油机 排放检测 瞬态循环 测量不确定度 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]