Research on Influence of Exhaust Characteristics and Control Strategy to DOC-Assisted Active Regeneration of DPF
For the purpose of designing a reasonable control strategy for DOC-assisted DPF regeneration, a mathematical model that describes the thermal phenomenon both in a diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) during regeneration is developed. All boundary conditions of this mod...
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doaj-e008f0b016134cb991098e859d2b51a22021-08-26T14:16:21ZengMDPI AGProcesses2227-97172021-08-0191403140310.3390/pr9081403Research on Influence of Exhaust Characteristics and Control Strategy to DOC-Assisted Active Regeneration of DPFGuanlin Liu0Weiqiang Liu1Yibin He2Jinke Gong3Qiong Li4College of Automotive Engineering, Hunan Industry Polytechnic, Changsha 410012, ChinaState Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, ChinaCollege of Automotive Engineering, Hunan Industry Polytechnic, Changsha 410012, ChinaState Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, ChinaCollege of Automotive Engineering, Hunan Industry Polytechnic, Changsha 410012, ChinaFor the purpose of designing a reasonable control strategy for DOC-assisted DPF regeneration, a mathematical model that describes the thermal phenomenon both in a diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) during regeneration is developed. All boundary conditions of this model are obtained by experiments. The effects of the main exhaust parameters such as exhaust mass flow rate, exhaust temperature, oxygen concentration and emission of reactants are investigated comprehensively. The effects of two main parameters of control strategy, DOC-out temperature and soot loading, are analyzed as well. To quantify the effects of relevant parameters, the fuzzy grey relational analysis method is utilized to evaluate the correlation coefficient of all factors to key indexes of DPF regeneration such as maximum temperature, maximum rate of temperature increase and regeneration duration. The results of this work will greatly reduce the complexity of analysis and enable more rational control strategy design of DOC–DPF regeneration systems.https://www.mdpi.com/2227-9717/9/8/1403DOC-assisted DPF regenerationmathematical modelexhaust parameterscontrol strategyfuzzy grey relational analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Guanlin Liu Weiqiang Liu Yibin He Jinke Gong Qiong Li |
spellingShingle |
Guanlin Liu Weiqiang Liu Yibin He Jinke Gong Qiong Li Research on Influence of Exhaust Characteristics and Control Strategy to DOC-Assisted Active Regeneration of DPF Processes DOC-assisted DPF regeneration mathematical model exhaust parameters control strategy fuzzy grey relational analysis |
author_facet |
Guanlin Liu Weiqiang Liu Yibin He Jinke Gong Qiong Li |
author_sort |
Guanlin Liu |
title |
Research on Influence of Exhaust Characteristics and Control Strategy to DOC-Assisted Active Regeneration of DPF |
title_short |
Research on Influence of Exhaust Characteristics and Control Strategy to DOC-Assisted Active Regeneration of DPF |
title_full |
Research on Influence of Exhaust Characteristics and Control Strategy to DOC-Assisted Active Regeneration of DPF |
title_fullStr |
Research on Influence of Exhaust Characteristics and Control Strategy to DOC-Assisted Active Regeneration of DPF |
title_full_unstemmed |
Research on Influence of Exhaust Characteristics and Control Strategy to DOC-Assisted Active Regeneration of DPF |
title_sort |
research on influence of exhaust characteristics and control strategy to doc-assisted active regeneration of dpf |
publisher |
MDPI AG |
series |
Processes |
issn |
2227-9717 |
publishDate |
2021-08-01 |
description |
For the purpose of designing a reasonable control strategy for DOC-assisted DPF regeneration, a mathematical model that describes the thermal phenomenon both in a diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) during regeneration is developed. All boundary conditions of this model are obtained by experiments. The effects of the main exhaust parameters such as exhaust mass flow rate, exhaust temperature, oxygen concentration and emission of reactants are investigated comprehensively. The effects of two main parameters of control strategy, DOC-out temperature and soot loading, are analyzed as well. To quantify the effects of relevant parameters, the fuzzy grey relational analysis method is utilized to evaluate the correlation coefficient of all factors to key indexes of DPF regeneration such as maximum temperature, maximum rate of temperature increase and regeneration duration. The results of this work will greatly reduce the complexity of analysis and enable more rational control strategy design of DOC–DPF regeneration systems. |
topic |
DOC-assisted DPF regeneration mathematical model exhaust parameters control strategy fuzzy grey relational analysis |
url |
https://www.mdpi.com/2227-9717/9/8/1403 |
work_keys_str_mv |
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