基于自由加速法的国六重型燃油车尾气数据分析与研究

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中图分类号：U461 收稿日期：2025-05-26 DOI: 10.19999/j.cnki.1004-0226.2025.11.014

Analysis and Research on Exhaust Gas of State 6 Heavy Fuel Vehicles in Duyun City Based on Free Acceleration Method

Yang Guangyu Departmentof Automotive Enginering，Qiannan Vocational Collge for Nationalities,Duyun 558ooo,China Abstract：The components that affect the exhaust emissions of National VI diesel vehicles mainly include NOx upstream temperaturesensorsandSCRupstreamtemperaturesensors，EGRvalves，ureapumps,DPF，tc.Theyareusedspecificalltotreatthpolut antsemitted.Afterbeingtreatedbathre-waycatalyst,carbonmonoxideisoxidizedintocarbondioxideandwater，whileothnitrogen oxides are converted into nitrogenand oxygen.

KeyWords:National VI standard;Three waycatalyticconverter;Testing equipment;Testing methods;Data analysis

1前言

尾气数据分析是机动车排放检测与环境保护的重要环节。（剩余5520字）