城市道路车辆排放对大气污染的线性诊断模型  

Linear diagnosis model of vehicle emission to air pollution on urban road

作　　者：胡启洲[1] 邓卫[2] 李晓菡 Hu Qizhou;Deng Wei;Li Xiaohan(School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China;School of Transportation,Southeast University,Nanjing 210096,China)

机构地区：[1]南京理工大学自动化学院,南京210094 [2]东南大学交通学院,南京210096

出　　处：《东南大学学报（自然科学版）》2018年第5期967-971,共5页Journal of Southeast University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51178157);教育部人文社会科学研究资助项目(18YJAZH028);江苏省"六大人才高峰"高层次人才资助项目(JXQC-021);河南省重点科技攻关资助项目(182102310004);江苏高校境外研修计划资助项目(201706)

摘　　要：为了评价车辆排放对大气污染的污染程度,提出了一种诊断模型.通过在不同路段诊断车辆排放强度,构建车辆排放强度的函数式,探索车辆运行状况下车辆排放具有的时空相关性.并在此基础上,获得机动车各种排放污染物的单车排放因子,构建不同道路类型上不同车辆排放诊断模型;并在分析机动车排放特性和规律基础上,建立不同道路环境下机动车排放的函数关系式,提出车辆排放对大气污染的线性诊断模型.应用结果表明:在同等条件下,快速路、主干道、次干道和支路中,支路的污染最严重;重型、中型、轻型和微型等不同车型排放差别较大,即使同一车型在不同速度下排放量也不同,速度越大,污染物排放量越小;对车辆尾气排放程度的有效评估后,可进行大数据分析,利用Matlab软件实现车辆排放过程监测; 4个车辆排放检测样本的有效误差为1. 16%,1. 35%,2. 20%和0. 80%,说明该模型误差小和具有较好的实用价值.To evaluate the degree of air pollution caused by vehicle emissions,a diagnostic model was proposed.By diagnosing the intensity of vehicle emissions in different sections and constructing the intensity function of vehicle emissions,the spatio-temporal correlation of vehicle emission under the condition of vehicle operation was explored.And based on this,the vehicle emission factors of various emission pollutants were obtained,and the diagnosis models of different vehicle emissions on different road types were established.By analyzing the characteristics and laws of vehicle emissions,the functional relationship of vehicle emissions in different road environments was established,and a linear diagnostic model for air pollution caused by vehicle emissions is also proposed.The application results show that under the same condition of fast roads,main roads,secondary roads and branch roads,the pollution of branch roads is the most serious.In addition,the different types of vehicles(heavy,medium,light,and miniature types)have larger differences in their emissions.Even if the same type has different emissions at different speeds,the higher the speed,the smaller the pollutant emissions.Through effectively evaluating the degree of air pollution caused by vehicle emissions,the model can be used for realizing the monitoring process by Matlab software after big data analysis.The case study shows that the effective errors of the four vehicle emission detection samples are 1.16%,1.35%,2.20%,and 0.80%.The model has advantages of high accuracy and small error,thus it has great practical value.

关 键 词：车辆排放 污染物 诊断模型 线性函数 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]