摘要
采用大样本检测、多参数数据分析以及数学建模对在用汽车怠速温室气体CO2排放分布规律进行了研究。利用专用计算机分析程序VRMTDA,对检测得到的某轻型载货汽车怠速CO2排放427个样本数据进行了分析,给出CO2排放分布参数的估计值及其在95%置信度下的置信区间。同时,借助于最小二乘估计方法和相关系数检验建立最优的CO2排放分布模型,模型计算结果与样本实测值之间的相对误差均小于2%。在分别设定不同排放合格率的前提下,由本文所建模型得到了具体的车辆怠速CO2排放限值,为削减温室气体排放,推动国内相关评价体系和标准的建立提供了依据。
The distribution pattern of in-use vehicle greenhouse gas（CO2）emission under idle operation was investigated by techniques of large sample detection,multiple parameter data analysis and mathematical modeling.Using a special computer analysis program VRMTDA,the estimates of CO2 emission distribution parameters and their confidence intervals at 95% confidence level were acquired from the 427 CO2 emission sample data detected from a certain light duty truck under idle operation.An optimal CO2 emission distribution model was established by help of the least square estimation technique and the related coefficient test,the relative errors between the modeled results and the measured ones in the sample were less than 2%.Setting respective CO2 emission cestificate rates for different vehicles,the idle CO2 emission limits were obtained for various vehicles,providing a foundation for cutting down the greenhouse gas emission and promoting the establishment of related evaluating system and the emission standard in China.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2010年第2期382-385,共4页
Journal of Jilin University:Engineering and Technology Edition
基金
国家西部交通建设科技项目(200831800074)
