Deterioration of gasoline vehicle emissions and effectiveness of tune-up for high-polluted vehicles

Hung Lung Chiang, Jiun Horng Tsai, Yung Chen Yao, Wen Yuan Ho

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

This study investigates the emissions using a chassis dynamometer for three types of passenger vehicles, including new vehicles, in-use vehicles, and highly polluted vehicles, based on the US federal test procedure (FTP-75). In-use high emitters, emit about 5-12 times more CO, NOx and HC. Emission tests before and after repair and maintenance for high emitters indicated that tune-ups fail to reduce emissions because of deterioration of the three-way catalyst over time.

Original languageEnglish
Pages (from-to)47-53
Number of pages7
JournalTransportation Research Part D: Transport and Environment
Volume13
Issue number1
DOIs
Publication statusPublished - 2008 Jan

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Transportation
  • Environmental Science(all)

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