A simplified method for motorcycle emission examination

Name: Li, Ming-An

Organization : NationalChung Hsing University. Mechanical Engineering Department

Name: Lin, Yu-Min

Organization : National Chung Hsing University. Mechanical Engineering Department

Name: Lu, Jau-Huai

Organization : National Chung Hsing University. Mechanical Engineering Department

keyword: Emission coefficient

ThaSH: Motorcycles -- Exhaust systems

; Portable Emission Measurement System

ThaSH: Air -- Pollution

ThaSH: Combustion gases

Abstract: With the rapid economic growth and rising national income, the number of motor vehicles in Taiwan has increased year by year. Mobile sources of pollution have become the main source of urban air pollution. In order to regulate the emission of motorcycles, the Taiwan government implements a regular exhaust emission inspection system. All vehicles that have been used for more. than five years are to be inspected every year. The inspection is conducted in an idle condition. This study found that there is no solid correlation between the emission level at the idle condition and the real pollution emitted on the streets, indicating that the current inspection process is not an effective way to screen out the high pollution vehicles. Besides, it also leads the government to underestimate the actual pollution amount. This study established a chassis dynamometer and ran. the motorcycle on it with a simplified driving pattern which is composed of a mild acceleration and a wild acceleration. This study found that the emission coefficient obtained in this way has a closer correlation with the results obtained in a standard emission laboratory. However, the time duration is shorter and the cost is relatively low. A portable emission measurement system is also developed in this study which can be cooperated with the chassis dynamometer to carry out the inspection work.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2018

Modified: 2025-06-17

Issued: 2025-06-17

บทความ/Article

application/pdf

BibliograpyCitation : In Thammasat University Faculty of Engineering. The 9th TSME International Conference on Mechanical Engineering 2018 (TSME-ICoME9) (pp.224-231) Pathum Thani : Thammasat University

eng

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