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Experimental analysis and research on the effect of long-term vibration on the performance of vehicle carbon canisters

Authors :
Yu Xiaohong
Liu Yiyao
Chen Tao
Zhao Hua
Source :
E3S Web of Conferences, Vol 522, p 01007 (2024)
Publication Year :
2024
Publisher :
EDP Sciences, 2024.

Abstract

The long-term vibration of the carbon canister during vehicle operation can lead to changes in its performance, thereby affecting its performance on evaporation emissions. A vibration test bench simulating vehicle vibration characteristics is used to simulate the working state of the carbon canister under actual driving conditions, analyze the amount of carbon powder precipitation and flow resistance changes in the canister after long-term operation, and compare the adsorption and desorption performance of the canister before and after aging and their effect on the evaporative emissions. The results showed that the carbon canister will produce carbon powder precipitation after being continuously subjected to the forward and backward vibration of the vehicle. This leads to a decrease in the ultimate adsorption and desorption capacity of the aged carbon canister for fuel vapor, with a more significant decrease in adsorption capacity. However, in the 2-day Diurnal Breathing Loss(DBL) test, due to the increase in flow resistance of the aged carbon canister, it is more difficult for the adsorbed fuel vapor to diffuse outward. For the unsaturated carbon canister, fuel leakage and evaporative emissions can be reduced. In evaporative emission management, it is necessary to adjust the control strategy reasonably based on the working status of the carbon canister.

Details

Language :
English, French
ISSN :
22671242
Volume :
522
Database :
Directory of Open Access Journals
Journal :
E3S Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.1996d1bb475342f4bc7de9a4f7e08b2f
Document Type :
article
Full Text :
https://doi.org/10.1051/e3sconf/202452201007