Invention Grant
- Patent Title: Mass based methods and systems for estimating soot load
- Patent Title (中): 用于估算烟灰负荷的基于质量的方法和系统
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Application No.: US12625049Application Date: 2009-11-24
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Publication No.: US08332124B2Publication Date: 2012-12-11
- Inventor: Sam George , Suhao He , Achim Karl-Erich Heibel , Min Shen
- Applicant: Sam George , Suhao He , Achim Karl-Erich Heibel , Min Shen
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Agent Matthew B. McNutt
- Main IPC: G06F19/00
- IPC: G06F19/00 ; G06F19/26

Abstract:
Mass based methods and systems for estimating soot load in a filter of an after-treatment system for exhaust stream are provided. The after-treatment system can comprise a sensor, a filter, 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 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.
Public/Granted literature
- US20110120088A1 Mass Based Methods And Systems For Estimating Soot Load Public/Granted day:2011-05-26
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