Issue |
E3S Web Conf.
Volume 268, 2021
2020 6th International Symposium on Vehicle Emission Supervision and Environment Protection (VESEP2020)
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Article Number | 01001 | |
Number of page(s) | 7 | |
DOI | https://doi.org/10.1051/e3sconf/202126801001 | |
Published online | 11 June 2021 |
Study on GPF regeneration factors and extreme environmental regeneration methods
Dong Feng Motor Corporation Technical Center, Wuhan 430058, China
* Corresponding author: chenlong@dfmc.com.cn
In order to cope with the increasingly stringent environmental pollution control target, DI gasoline engines must use particulate filters. In order to ensure that GPF will not block or burn during the process of capturing particulate, the gasoline particulate filter (GPF) needs to be controlled based on current soot mass in real time. The loading capacity controls the regeneration of GPF, and the influencing factors of the regeneration efficiency are highly related to the GPF inner temperature, the amount of oxygen, and the soot loading of the GPF carrier. This paper analyzes the weight of the influencing factors of each consumption rate through mathematical methods, and from real test, it can be seen that there is difficult on regeneration of accumulated soot in low-temperature environments on under floor GPF. In this paper, in the test and inspection of low temperature environment, considering the drivability, the regeneration control scheme is clarified by optimizing the active control, and at the same time, the driving mode of extreme conditions is also required.
Key words: soot dissipation model / high quality regeneration / combustion efficiency
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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