重型危险品半挂列车行驶工况的构建  

Driving cycle construction of heavy semi⁃trailers carrying hazardous cargos

作　　者：李洪雪 李世武[1] 孙文财[1] 李玮 郭梦竹 LI Hong-xue;LI Shi-wu;SUN Wen-cai;LI Wei;GUO Meng-zhu(College of Transportation,Jilin University,Changchun 130022,China;State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China)

机构地区：[1]吉林大学交通学院,长春130022 [2]吉林大学汽车仿真与控制国家重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2021年第5期1700-1707,共8页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家重点研究开发项目(2017YFC0804808);吉林省科技发展计划项目(20180101074JC);吉林省教育厅“十三五”科学技术项目(JJKH20190152KJ);国家重点研发计划项目(2018YFB1600501).

摘　　要：采用自主研发的Nicigo行车记录仪,按照24小时自由行驶路线法,采集宁波市50辆重型危险品半挂列车的行驶数据。对数据进行分割获得3006个运动学片段,利用主成分分析法和K-means聚类技术对运动学片段进行分类,根据运动学片段与聚类中心的距离选取各类代表性片段,最终拟合出宁波市重型危险品半挂列车行驶工况。通过与国内外代表性行驶工况对比,发现所构建工况的平均速度、加速和减速比例与FTP-75工况极为接近,而匀速比例与北京市重型卡车差异最小以及怠速比例与各类工况差异较大的特点。The self-developed Nicigo driving-recorder was used to collect the driving data of 50 heavy semi-trailers carrying hazardous cargos in Ningbo city according to the 24-hour free running route method.3006 kinematic fragments were obtained through data segmentation technology.Principal component analysis and K-means clustering technology were used to classify the kinematic segments.Various representative segments were selected according to the distance between the kinematic segments and the clustering center,and the driving cycle of heavy semi-trailers carrying hazardous cargos in Ningbo city were finally fitted.By comparing with the representative driving cycles at home and abroad,it is found that the average speed,acceleration and deceleration ratio of the constructed cycle are very close to the FTP-75 cycle,and the uniform speed ratio is the least different from that of heavy trucks in Beijing,and the idle speed ratio is greatly different from that of various cycles.

关 键 词：载运工具运用工程 半挂列车 行驶工况 主成分分析 K-MEANS聚类 

分 类 号：U469.5[机械工程—车辆工程]