发明名称 |
MASS BASED METHODS AND SYSTEMS FOR ESTIMATING SOOT LOAD |
摘要 |
<p>Mass based methods and systems for estimating soot load in a filter (12) of an after-treatment system for exhaust stream are provided. The after-treatment system can comprise a sensor (18, 20, 22), a filter (12), and a processor configured to estimate soot load in the filter based on a mass based multi- layer model. An example system includes a virtual sensor comprising an estimator (16) for providing information corresponding to a filter outlet NO2 concentration. An example method includes the steps of providing the mass based multi -layer model, passing the exhaust stream through the filter, and using the sensor to monitor a condition of the exhaust stream. The example method further includes the steps of calculating a total regeneration rate based on the multi-layer model by solving a second-order ordinary differential equation with a plurality of parameters using an analytical approach, and estimating the soot load based on the calculated total regeneration rate.</p> |
申请公布号 |
WO2011066124(A1) |
申请公布日期 |
2011.06.03 |
申请号 |
WO2010US56699 |
申请日期 |
2010.11.15 |
申请人 |
CORNING INCORPORATED;HEIBEL, ACHIM K.;GEORGE, SAM;HE, SUHAO;SHEN, MIN |
发明人 |
HEIBEL, ACHIM K.;GEORGE, SAM;HE, SUHAO;SHEN, MIN |
分类号 |
F01N3/021 |
主分类号 |
F01N3/021 |
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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