Towards Clean Diesel Engines. Second Symposium. Book of Abstracts.

1998 ◽  
Author(s):  
PAUL SCHERRER INST VILLIGEN (SWITZERLAND)
Keyword(s):  
2007 ◽  
Author(s):  
Rudolf R. Maly ◽  
Volker Schaefer ◽  
Heinz Hass ◽  
G. F. (Barry) Cahill ◽  
Pierre Rouveirolles ◽  
...  

MTZ worldwide ◽  
2017 ◽  
Vol 78 (2) ◽  
pp. 52-59 ◽  
Author(s):  
Martin Härtl ◽  
Kai Gaukel ◽  
Dominik Pélerin ◽  
Georg Wachtmeister

2017 ◽  
Vol 10 (3) ◽  
pp. 6-7
Author(s):  
Andreas Fuchs
Keyword(s):  

2008 ◽  
Author(s):  
Philip S. Keller ◽  
Volker Joergl ◽  
Olaf Weber ◽  
Robert Czarnowski
Keyword(s):  

1997 ◽  
Author(s):  
A. Mayer ◽  
J. Czerwinski ◽  
W. Scheidegger ◽  
D. Kieser ◽  
E. Bigga ◽  
...  

2015 ◽  
Vol 27 (1) ◽  
pp. 41-48
Author(s):  
Hisao Haga ◽  
◽  
Eiji Hashimoto ◽  
Koichi Nakajima ◽  
Hideki Matsunaga ◽  
...  

<div class=""abs_img""><img src=""[disp_template_path]/JRM/abst-image/00270001/05.jpg"" width=""300"" />Urea-SCR control system</div> Diesel engines effectively reduce automotive CO2emissions. Technologies for reducing NOxemissions are also essential, however, for diesel engine use. The research discussed in this paper focuses on urea-SCR as after-treatment system for converting NOx, and proposes the urea-SCR control based on NH3sensor output. The NH3sensor effectively reduces both NOx, and NH3slip. The control adjusts the amount of urea dosed to the catalyst based on changes in NH3slip timing and NH3concentration in order to compensate for part-to-part variations in the SCR catalyst and catalyst aging. The proposed urea-SCR system using the NH3sensor and applied to a test vehicle increased NOxconversion performance and improved emission robustness over that of conventional control using a NOxsensor. </span>


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