Oxygen catalyst depletion strategy based on TWC control-oriented modelling

被引：5
|
作者：
Maria Desantes, Jose [1 ]
Guardiola, Carlos [1 ]
Pla, Benjamin [1 ]
Real, Marcelo [1 ]
机构：
[1] Univ Politecn Valencia, CMT Motores Term, Camino Vera S-N, E-46022 Valencia, Spain
来源：
IFAC PAPERSONLINE | 2018年 / 51卷 / 31期
关键词：
Engine control; engine after-treatment; optimal control; model-based control; 3-WAY; CONVERTER;
D O I：
10.1016/j.ifacol.2018.10.073
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents and experimentally evaluates different model-based O-2 depletion strategies for the TWC during a tip-in after a fuel cut-off. The objective is to find an optimal depletion strategy in the sense of minimum fuel consumption while keeping NOx emissions during the transient below certain limit. To do that, in the present paper, a control oriented model of the TWC is combined with a Direct Method to solve the corresponding Optimal Control Problem. The analysis of the obtained results allows to design model-based control strategies whose performance is experimentally assessed. In particular, the results obtained show the tradeoff between fuel consumption and NOx emissions during the analysed transient. (C) 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.
引用
收藏
页码：355 / 361
页数：7
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