主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2021, Vol. 46 ›› Issue (16): 134-137.DOI: 10.16638/j.cnki.1671-7988.2021.016.036

• 测试试验 • 上一篇    下一篇

基于确定样本容量的汽车循环工况研究

丁 伟，张 艳   

  1. 商丘师范学院电子电气工程学院
  • 出版日期:2021-08-30 发布日期:2021-08-30
  • 通讯作者: 丁 伟
  • 作者简介:丁伟（1990.09—），男，商丘师范学院电子电气工程学院，研究方向：汽车技术。

Research on Vehicle Cycle Condition Based on Determining Sample Size

FANG Mingyao, DONG Yongfeng, HUANG Qin   

  1. School of Electronic and Electrical Engineering, Shangqiu Normal University
  • Online:2021-08-30 Published:2021-08-30
  • Contact: DING Wei

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摘要： 综合公交线路强度兼顾公交车运行区域和运行类型及各区域公交车数量所占比例确定选取 20 条公交线路利用车载数据采集设备对选取的 20 条公交车行驶数据进行采集，共获得 11 370 170 条有效行驶数据。运用统计学中的离散系数确定了所需的样本容量，运用 matlab 编程实现整体有效试验数据的短行程划分、主成分分析（PCA） 和 K-means 聚类分析，构建了基于确定样本容量、符合郑州市交通特征、长度为 1 250 s 的郑州市行驶工况。

关键词: 公交线路；离散系数；行驶工况构建

Abstract: Based on the bus line strength, taking into account the bus operation area, operation type and the proportion of the number of buses in each area, 20 bus lines were selected, and the driving data of 20 buses were collected by on-board data acquisition equipment, a total of 11 370 170 effective driving data were obtained. Using the discrete coefficient of statistics to determine the required sample size, using MATLAB programming to achieve the overall effective test data of short trip division, principal component analysis (PCA) and K-means clustering analysis, a driving cycle of 1 250 s in Zhengzhou city was constructed based on the determined sample size, in line with the traffic characteristics of Zhengzhou city.

Key words: Bus route; Dispersion coefficient; Driving cycle construction