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Real-road NOx and CO2 emissions of city and highway China-6 heavy-duty diesel vehicles.
Ge, Zihao; Li, Wanyang; Wang, Junfang; Wang, Yachao; Huang, Ying; Wang, Xin; Ge, Yunshan.
Afiliación
  • Ge Z; School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.
  • Li W; Weichai Power Co. Ltd., Weifang 261061, China.
  • Wang J; Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
  • Wang Y; School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.
  • Huang Y; School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China. Electronic address: hy111@bit.edu.cn.
  • Wang X; School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.
  • Ge Y; School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.
J Environ Sci (China) ; 149: 330-341, 2025 Mar.
Article en En | MEDLINE | ID: mdl-39181646
ABSTRACT
The emission of heavy-duty vehicles has raised great concerns worldwide. The complex working and loading conditions, which may differ a lot from PEMS tests, raised new challenges to the supervision and control of emissions, especially during real-world applications. On-board diagnostics (OBD) technology with data exchange enabled and strengthened the monitoring of emissions from a large number of heavy-duty diesel vehicles. This paper presents an analysis of the OBD data collected from more than 800 city and highway heavy-duty vehicles in China using remote OBD data terminals. Real-world NOx and CO2 emissions of China-6 heavy-duty vehicles have been examined. The results showed that city heavy-duty vehicles had higher NOx emission levels, which was mostly due to longer time of low SCR temperatures below 180°C. The application of novel methods based on 3B-MAW also found that heavy-duty diesel vehicles tended to have high NOx emissions at idle. Also, little difference had been found in work-based CO2 emissions, and this may be due to no major difference were found in occupancies of hot running.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Emisiones de Vehículos / Dióxido de Carbono / Monitoreo del Ambiente / Contaminantes Atmosféricos / Óxidos de Nitrógeno País/Región como asunto: Asia Idioma: En Revista: J Environ Sci (China) Asunto de la revista: SAUDE AMBIENTAL Año: 2025 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Emisiones de Vehículos / Dióxido de Carbono / Monitoreo del Ambiente / Contaminantes Atmosféricos / Óxidos de Nitrógeno País/Región como asunto: Asia Idioma: En Revista: J Environ Sci (China) Asunto de la revista: SAUDE AMBIENTAL Año: 2025 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos