Experimental determination and modelling of the diesel oxidation catalysts ageing effects

被引：3

作者：

Guardiola, Carlos ^{[1
]}

Pla, Benjamin ^{[1
]}

Perez, Javier Mora ^{[1
]}

Lefebvre, Damien ^{[2
]}

机构：

[1] Univ Politecn Valencia, CMT Motores Term, Camino Vera S-N, E-46022 Valencia, Spain

[2] Grp PSA, Poissy, France

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING | 2019年 / 233卷 / 12期

关键词：

Diesel oxidation catalyst; diesel engine; ageing; model; emissions; diagnostics; CONTROL-ORIENTED MODEL; GLOBAL KINETICS; SYSTEMS; EXHAUST; ENGINES; IMPACT;

D O I：

10.1177/0954407018814305

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

After-treatment systems are necessary to respect the pollutant emissions thresholds specified by regulations. However, due to system ageing, the efficiency of the after-treatment system may decrease and affect the vehicle emissions during real driving conditions. To address this issue, the model presented in this article is based on the on-engine tests performed to a set of diesel oxidation catalysts with different ageing levels, through which the ageing process is characterized. Then, the model is able to simulate the light-off temperature and slip increase due to ageing, and it is applied to a Worldwide Harmonized Light Vehicles Test Cycle for a new and a thermally aged catalysts.

引用

页码：3016 / 3029

页数：14

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