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Advanced Urea-SCR Control for Next Generation Clean Diesel Vehicle
FISITA2014/F2014-CET-130

Authors

Hisao, Haga; Eiji, Hashimoto; Koichi, Nakajima; Hideki, Matsunaga; Yuji, Yasui; - Honda R&D Co., Ltd.

Abstract

Diesel engines display high thermal efficiency, and are therefore effective in reducing CO2 emissions as a means of combating global warming. However, because diesel engines use lean combustion, it is not possible to convert NOx using a three-way-catalyst (TWC). The research discussed in this paper therefore focused on urea-selective catalytic reduction (urea-SCR) systems. The realization of a dramatic increase in the NOx conversion performance of these systems has led to the possibility of satisfying the demands of LEV-III SULEV and Euro 6 regulations.

KEYWORDS – After treatment, Emission control, Engine control, Adaptive control, Feedback control

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