发明名称 |
Apparatus, system, and method for controlling reductant dosing in an SCR catalyst system |
摘要 |
According to one representative embodiment, an apparatus for controlling reductant dosing in an SCR catalyst system having a reductant injection system configured to inject reductant into an exhaust gas stream includes a controller, an actual reductant dosing rate module, and a reductant doser compensation module. The controller is configured to determine a reductant dosing rate command representing a desired reductant dosing rate. The actual reductant dosing rate module is configured to determine a predicted actual reductant dosing rate based at least partially on the reductant dosing rate command. The reductant doser compensation module is configured to determine a modified reductant dosing rate command based at least partially on the predicted actual reductant dosing rate. The reductant injection system injects reductant into the exhaust gas stream at a rate corresponding to the modified reductant dosing rate command.
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申请公布号 |
US8356471(B2) |
申请公布日期 |
2013.01.22 |
申请号 |
US20090632628 |
申请日期 |
2009.12.07 |
申请人 |
CUMMINS IP, INC.;CHI JOHN N.;WANG WEIWEN;GARIMELLA PHANINDRA;HILL JOE V. |
发明人 |
CHI JOHN N.;WANG WEIWEN;GARIMELLA PHANINDRA;HILL JOE V. |
分类号 |
F01N3/00 |
主分类号 |
F01N3/00 |
代理机构 |
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地址 |
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