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
收藏
页码：3016 / 3029
页数：14
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