基于马尔科夫链的长春市乘用车行驶工况构建

doi:10.13229/j.cnki.jdxbgxb20170742

吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (5): 1366-1373.doi: 10.13229/j.cnki.jdxbgxb20170742

基于马尔科夫链的长春市乘用车行驶工况构建

曹骞, 李君, 刘宇, 曲大为

吉林大学汽车仿真与控制国家重点实验室,长春 130022

收稿日期:2017-07-14 出版日期:2018-09-20 发布日期:2018-12-11
通讯作者: 刘宇(1981-),男,副教授,博士.研究方向:行驶工况数据采集及算法分析.E-mail:liuyu1981@jlu.edu.cn
作者简介:曹骞(1986-),男,博士研究生.研究方向:行驶工况构建算法开发.E-mail:docfile1@126.com
基金资助:
中国新能源汽车产品检测工况研究和开发项目(工装函[2015]615号)

Construction of driving cycle based on Markov chain for passenger car in Changchun City

CAO Qian, LI Jun, LIU Yu, QU Da-wei

State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022,China

Received:2017-07-14 Online:2018-09-20 Published:2018-12-11

摘要/Abstract

摘要： 针对乘用车现阶段油耗国标测试结果与实际道路行驶相差较大的问题,研究了长春市乘用车代表性行驶工况。针对长春市乘用车采集一年行驶数据,获得有效数据3 538 335条,应用聚类和马尔科夫链方法构建代表工况,并与上海工况及NEDC工况进行对比分析。结果表明:构建工况与数据库总体的平均偏差为4.03%,远低于10%的偏差要求,能够准确反映长春市乘用车的行驶特征;长春工况与上海工况及NEDC工况相比差异较大,特征值平均偏差分别为22.7%和21.1%,中国城市行驶工况存在明显差异,现行NEDC工况难以准确描述中国乘用车行驶特征,构建符合国情的行驶工况十分必要。本文结果为提升长春市乘用车测试和评价结果准确性提供了有益参考。

关键词: 交通运输规划与管理, 行驶工况, 马尔可夫链, 乘用车

Abstract: With regard to the big gap between fuel consumption measurement and actual driving performance of passenger car, the typical driving cycle of passenger car in Changchun city was researched. One year's driving data were collected in Changchun city, from which 3 538 335 valid data were acquired for the research. Cluster method and Markov chain principle were applied to construct the typical driving cycle, and Changchun cycle was compared with Shanghai cycle and NEDC cycle. The results show that the average absolute deviation of the characteristic parameters between the constructed cycle and sample database population is 4.03%, which is obviously lower than the 10% deviation requirement and indicates that the constructed cycle could accurately reflect the driving characteristics in Changchun city. The driving characteristics of Changchun cycle differ widely from that of Shanghai cycle and NEDC cycle. The average absolute deviation of the characteristic parameters between Changchun cycle and the other two cycles is 22.7% and 21.1% respectively. The driving characteristics of NEDC cycle can not accurately describe the driving characteristics of passenger car in China. Therefore, it is necessary to construct driving cycle that conforms with the situations of China. The results of this research may provide references for promoting the accuracy of measurement and assessment on passenger car in Changchun city.

Key words: transportation planning and management, driving cycle, Markov chain, passenger car

中图分类号:

U491.2

曹骞, 李君, 刘宇, 曲大为. 基于马尔科夫链的长春市乘用车行驶工况构建[J]. 吉林大学学报(工学版), 2018, 48(5): 1366-1373.

CAO Qian, LI Jun, LIU Yu, QU Da-wei. Construction of driving cycle based on Markov chain for passenger car in Changchun City[J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1366-1373.

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基于马尔科夫链的长春市乘用车行驶工况构建

Construction of driving cycle based on Markov chain for passenger car in Changchun City

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