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 ›› 2022, Vol. 48 ›› Issue (7): 180-184.DOI: 10.16638/j.cnki.1671-7988.2023.07.036

• 标准·法规·管理 • 上一篇    

基于重庆市机动车年检数据的在用车 排放状况分析

陈旭博 1，陈 莹*1，柏 齐 1，刘一鸣 1，徐晓伟 2   

  1. 1.招商局检测车辆技术研究院有限公司 国家客车质量检验检测中心； 2.重庆市机动车排气污染管理中心
  • 出版日期:2023-04-15 发布日期:2023-04-15
  • 通讯作者: 陈旭博
  • 作者简介:陈旭博（1993—），男，硕士，工程师，研究方向为汽车节能减排技术，E-mail:cjchenxubo@cmhk.com。 通信作者：陈莹（1983—），女，博士，高级工程师，研究方向为汽车整车及零部件排放检测与减污降碳技术，E-mail: cjchenying@cmhk.com。
  • 基金资助:
    重庆市市场监督管理局科研计划项目（CQSJKJ2021010）。

Analysis on the Emission Status of In-use Vehicle Based on Annual Vehicle Inspection Date in Chongqing

CHEN Xubo1 , CHEN Ying*1 , BAI Qi1 , LIU Yiming1 , XU Xiaowei2   

  1. 1.National Coach Quality Inspection and Testing Center, China Merchants Testing Vehicle Technology Research Institute Company Limited; 2.Chongqing Motor Vehicle Emission Management Center
  • Online:2023-04-15 Published:2023-04-15
  • Contact: CHEN Xubo

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摘要： 基于重庆市 149 家机动车年检站的 82 540 条在用车年检数据，统计分析了不同年检测 试方法数据质量及通过率。结果表明：1）年检站数据质量平均分数为 89.3 分，双怠速法数 据质量明显较低，建议进一步加强对双怠速检验方法的规范性要求；2）机动车年检测试方法 中，自由加速法通过率最高，稳态工况法次之，双怠速法和加载减速法最低，但均高于 90%； 3）机动车年检站通过率符合正态分布规律，通过率过高或过低均不利于对高排放车辆的筛查， 建议进一步优化排放限值和检测方法，提高筛查效率。

关键词: 机动车年度检验；数据质量；通过率；筛查效率

Abstract: Based on the annual inspection data of 82 540 in-use vehicles from 149 motor vehicle annual inspection stations in Chongqing, the data quality and passing rate of different annual inspection test methods were analyzed statistically. The results show that: 1) The average score of data quality of the annual inspection station is 89.3 points, and the data quality of the two-speed idle conditions method is significantly lower. It is suggested to further strengthen the normative requirements of two-speed idle conditions method.2) Among the annual inspection test methods of motor vehicles, the passing rate of the free acceleration method is the highest, followed by the steady-state condition method, and the two-speed idle conditions method and the lugdown cycle are the lowest, but both are higher than 90%. 3) The passing rate of the motor vehicle annual inspection station conforms to the normal distribution law.Too high or too low passing rate is not conducive to the screening of high-emission vehicles. It is suggested to further optimize the emission limits and detection methods to improve the screening efficiency.

Key words: Annual vehicle inspection; Data quality; Passing rate; Screening efficiency