发明名称 |
Apparatus and Method for Optimizing Exhaust Temperature Control in a Vehicle During Particulate Filter Regneration |
摘要 |
A method controls an exhaust gas temperature from a vehicle engine during regeneration of particulate filter (PF) in a vehicle having an oxidation catalyst (OC) and a selective catalytic reduction catalyst (SCR). The method ensures that a final OC temperature does not exceed a maximum of the target OC outlet temperature and a calibrated maximum OC outlet temperature. An apparatus for controlling a temperature of the exhaust gas includes sensors for measuring a temperature within the exhaust system and a controller having an algorithm, an OC temperature lookup table, and a PF temperature lookup table. The algorithm calculates a target OC outlet temperature using the lookup tables and a delayed error value that compensates for a thermal mass of the SCR. Actual OC outlet temperature is limited during regeneration of the PF to the lesser of the target OC outlet temperature and a calibrated maximum OC outlet temperature. |
申请公布号 |
US2010083639(A1) |
申请公布日期 |
2010.04.08 |
申请号 |
US20080244976 |
申请日期 |
2008.10.03 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
MULLINS JASON DANIEL;LAROSE, JR. THOMAS;PERRIN JAMES M.;JASINKIEWICZ PAUL |
分类号 |
F01N9/00 |
主分类号 |
F01N9/00 |
代理机构 |
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代理人 |
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地址 |
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