发明名称 |
CONTROL TECHNIQUES FOR AN SCR AFTERTREATMENT SYSTEM |
摘要 |
<p>A method includes providing: a selective catalytic reduction (SCR) catalyst disposed in an exhaust gas stream of an internal combustion engine, a reagent injector operationally coupled to the exhaust gas stream at a position upstream of the SCR catalyst, and a NOx sensor coupled to the exhaust gas stream at a position downstream of at least a first portion of the SCR catalyst. The method includes operating an extremum seeking controller to determine a first reagent injection amount corresponding to a predetermined slope of dNOx/dANR, the dNOx/dANR determined according to the NOx sensor, providing a reagent injection command in response to the first reagent injection amount, and injecting an amount of the reagent in response to the reagent injection command.</p> |
申请公布号 |
WO2012151442(A1) |
申请公布日期 |
2012.11.08 |
申请号 |
WO2012US36392 |
申请日期 |
2012.05.03 |
申请人 |
CUMMINS INC.;GEVECI, MERT;OSBURN, ANDREW;HAAS, MICHAEL |
发明人 |
GEVECI, MERT;OSBURN, ANDREW;HAAS, MICHAEL |
分类号 |
F01N11/00 |
主分类号 |
F01N11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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