环境监测管理与技术
環境鑑測管理與技術
배경감측관리여기술
THE ADMINISTRATION AND TECHNIQUE OF ENVIRONMENTAL MONITORING
2014年
6期
67-70
,共4页
加载减速工况法%柴油车%排气检测%设备性能
加載減速工況法%柴油車%排氣檢測%設備性能
가재감속공황법%시유차%배기검측%설비성능
LugDown%Diesel vehicles%Exhaust detection%The performance of equipment
介绍了用于柴油车排气检测的加载减速工况(LugDown)法设备的构成与测量原理,分析了 LugDown 法设备在加载、功率扫描控制、排气测量控制等方面存在的问题。对照国标要求,结合 LugDown法设备的工作特点,探讨了在功率扫描性能、寄生滑行性能、排气测量过程控制、测试档位选择与扫描起始速度控制等方面的改进与完善方法。
介紹瞭用于柴油車排氣檢測的加載減速工況(LugDown)法設備的構成與測量原理,分析瞭 LugDown 法設備在加載、功率掃描控製、排氣測量控製等方麵存在的問題。對照國標要求,結閤 LugDown法設備的工作特點,探討瞭在功率掃描性能、寄生滑行性能、排氣測量過程控製、測試檔位選擇與掃描起始速度控製等方麵的改進與完善方法。
개소료용우시유차배기검측적가재감속공황(LugDown)법설비적구성여측량원리,분석료 LugDown 법설비재가재、공솔소묘공제、배기측량공제등방면존재적문제。대조국표요구,결합 LugDown법설비적공작특점,탐토료재공솔소묘성능、기생활행성능、배기측량과정공제、측시당위선택여소묘기시속도공제등방면적개진여완선방법。
The measurement principle is introduced in the emission test of diesel vehicles and the defect is analysed in the loading,power scanning control,exhaust measurement control method about the LugDown test fa-cilities.Based on the control requirements of the national standard and the working characteristics of LugDown test facilities,the improvement method is discussed in the power scanning performance,parasitic gliding per-formance,exhaust measurement process control,test gear selection and the initial scanning speed control etc.