汽车安全与节能学报 ›› 2022, Vol. 13 ›› Issue (2): 341-349.DOI: 10.3969/j.issn.1674-8484.2022.02.015
李耀华(), 邵攀登, 翟登旺, 任田园, 宋伟萍, 刘洋, 赵承辉
收稿日期:
2021-01-18
修回日期:
2022-04-01
出版日期:
2022-06-30
发布日期:
2022-07-01
作者简介:
李耀华(1980—),男(汉), 陕西, 副教授。E-mail: nuaaliyaohua@126.com。
基金资助:
LI Yaohua(), SHAO Pandeng, ZHAI Dengwang, REN Tianyuan, SONG Weiping, LIU Yang, ZHAO Chenghui
Received:
2021-01-18
Revised:
2022-04-01
Online:
2022-06-30
Published:
2022-07-01
摘要:
为了对特定区域构建符合当地车辆行驶特征的行驶工况,基于聚类与Markov链法构建了西安市某线路城市客车的行驶工况,确定了聚类个数及特征参数组合,提出了构建工况长度的确定方法,从能耗角度定义汽车行驶时的单位里程比能耗作为工况选取标准,从50条候选工况中筛选出该线路的代表工况。结果表明:与聚类法工况和V-A矩阵法工况相比,基于聚类与Markov链法构建的行驶工况与样本数据偏差最小,平均偏差率为1.17%,百千米能耗相差最小,偏差率为0.069%,显示基于聚类与Markov链法构建的行驶工况精度更高,更能反映车辆的实际行驶状况工况。
中图分类号:
李耀华, 邵攀登, 翟登旺, 任田园, 宋伟萍, 刘洋, 赵承辉. 基于聚类与Markov链法的西安市某线路城市客车工况构建[J]. 汽车安全与节能学报, 2022, 13(2): 341-349.
LI Yaohua, SHAO Pandeng, ZHAI Dengwang, REN Tianyuan, SONG Weiping, LIU Yang, ZHAO Chenghui. Construction of driving cycle of city bus line in Xi’an based on clustering and Markov chain method[J]. Journal of Automotive Safety and Energy, 2022, 13(2): 341-349.
片段序号 | vmax | vmean | vmr | … | λ40-50 |
---|---|---|---|---|---|
1 | -0.816 77 | -0.902 16 | -0.978 00 | … | -0.111 67 |
2 | 0.403 90 | 0.128 52 | 0.538 30 | … | -0.111 67 |
3 | 0.394 41 | -0.047 98 | 0.515 96 | … | -0.111 67 |
… | … | … | … | … | … |
2 828 | 0.298 77 | 0.561 44 | 0.194 51 | … | -0.111 67 |
2 829 | 0.602 67 | 0.748 00 | 0.671 48 | … | -0.111 67 |
2 830 | 0.625 93 | 1.496 58 | 0.986 78 | … | -0.111 67 |
片段序号 | vmax | vmean | vmr | … | λ40-50 |
---|---|---|---|---|---|
1 | -0.816 77 | -0.902 16 | -0.978 00 | … | -0.111 67 |
2 | 0.403 90 | 0.128 52 | 0.538 30 | … | -0.111 67 |
3 | 0.394 41 | -0.047 98 | 0.515 96 | … | -0.111 67 |
… | … | … | … | … | … |
2 828 | 0.298 77 | 0.561 44 | 0.194 51 | … | -0.111 67 |
2 829 | 0.602 67 | 0.748 00 | 0.671 48 | … | -0.111 67 |
2 830 | 0.625 93 | 1.496 58 | 0.986 78 | … | -0.111 67 |
类数 | 特征参数 | vsd + vmax + Dmax + amax | … | t + Lr |
---|---|---|---|---|
3 | 28 | 688 | … | 14 92 |
1 090 | 1 074 | 346 | ||
1 712 | 1 068 | 992 | ||
4 | 4 | 578 | … | 1 330 |
1 191 | 588 | 379 | ||
51 | 1 189 | 1 013 | ||
784 | 475 | 108 | ||
5 | 49 | 409 | … | 974 |
599 | 482 | 5 | ||
4 | 773 | 1 170 | ||
572 | 253 | 164 | ||
1 606 | 913 | 517 |
类数 | 特征参数 | vsd + vmax + Dmax + amax | … | t + Lr |
---|---|---|---|---|
3 | 28 | 688 | … | 14 92 |
1 090 | 1 074 | 346 | ||
1 712 | 1 068 | 992 | ||
4 | 4 | 578 | … | 1 330 |
1 191 | 588 | 379 | ||
51 | 1 189 | 1 013 | ||
784 | 475 | 108 | ||
5 | 49 | 409 | … | 974 |
599 | 482 | 5 | ||
4 | 773 | 1 170 | ||
572 | 253 | 164 | ||
1 606 | 913 | 517 |
t / s | 1 419 | vsd | 12.42 |
---|---|---|---|
L / km | 6.10 | asd | 0.52 |
vmean / (km·h-1) | 15.48 | λa / % | 33.26 |
vmr / (km·h-1) | 20.25 | λd / % | 28.96 |
amean / (m·s-2) | 0.51 | λc / % | 14.24 |
Dmean / (m·s-2) | 0.56 | λi / % | 23.54 |
t / s | 1 419 | vsd | 12.42 |
---|---|---|---|
L / km | 6.10 | asd | 0.52 |
vmean / (km·h-1) | 15.48 | λa / % | 33.26 |
vmr / (km·h-1) | 20.25 | λd / % | 28.96 |
amean / (m·s-2) | 0.51 | λc / % | 14.24 |
Dmean / (m·s-2) | 0.56 | λi / % | 23.54 |
特征参数 | vmean m·s-1 | vmr m·s-1 | amean m·s-2 | Dmean m·s-2 | λa |
---|---|---|---|---|---|
样本数据 | 15.687 | 20.527 | 0.516 | -0.548 | 0.301 |
B法 | 15.480 | 20.250 | 0.510 | -0.560 | 0.333 |
聚类法 | 14.405 | 18.144 | 0.572 | -0.604 | 0.309 |
V-A工况 | 15.157 | 21.450 | 0.500 | -0.542 | 0.267 |
特征参数 | λd | λc | λi | vsd | asd |
样本数据 | 0.263 | 0.200 | 0.236 | 12.577 | 0.530 |
B法 | 0.290 | 0.142 | 0.235 | 12.420 | 0.520 |
聚类法 | 0.273 | 0.212 | 0.206 | 11.426 | 0.533 |
V-A工况 | 0.237 | 0.203 | 0.293 | 12.871 | 0.441 |
特征参数 | vmean m·s-1 | vmr m·s-1 | amean m·s-2 | Dmean m·s-2 | λa |
---|---|---|---|---|---|
样本数据 | 15.687 | 20.527 | 0.516 | -0.548 | 0.301 |
B法 | 15.480 | 20.250 | 0.510 | -0.560 | 0.333 |
聚类法 | 14.405 | 18.144 | 0.572 | -0.604 | 0.309 |
V-A工况 | 15.157 | 21.450 | 0.500 | -0.542 | 0.267 |
特征参数 | λd | λc | λi | vsd | asd |
样本数据 | 0.263 | 0.200 | 0.236 | 12.577 | 0.530 |
B法 | 0.290 | 0.142 | 0.235 | 12.420 | 0.520 |
聚类法 | 0.273 | 0.212 | 0.206 | 11.426 | 0.533 |
V-A工况 | 0.237 | 0.203 | 0.293 | 12.871 | 0.441 |
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