| Issue |
E3S Web Conf.
Volume 360, 2022
2022 8th International Symposium on Vehicle Emission Supervision and Environment Protection (VESEP2022)
|
|
|---|---|---|
| Article Number | 01032 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/e3sconf/202236001032 | |
| Published online | 23 November 2022 | |
Comparative analysis on emission characteristics of normal temperature cold start of gasoline vehicles
1 China Automotive Technology and Research Center Co., Ltd., Tianjin, China
2 Wuhan University of Technology, Wuhan, China
* Corresponding author: a13652002792@163.com
According to the requirements of Normal Temperature Cold Start for the current China six automobile, choose four different light-duty gasoline vehicles, use Beijing six gasoline to carried out type I emission test. Assess WLTC emissions of each interval under the condition of different emission difference, and the causes of pollutant formation in different stages were analyzed. The results show that the WLTC circulation under the cold start phase is still the most pollutants discharge stage, specific performance in cold start phase before the 50s, the main reason is that the exhaust temperature is too low and the catalyst does not light up; Secondly, more pollutants will be produced in the extra-high speed stage, in this stage, open-loop control is used.
Key words: Type I emission test / Emissions generated / Gasoline vehicles / Cold start
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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