发明名称 Abgasreinigungsvorrichtung und Regler für eine Brennkraftmaschine
摘要 When deterioration of a NOx purifying device due to sulfur contamination is detected, a specific operating state flag FHL is set to "1," and, at intervals equal to or shorter than, for example, three seconds, the air-fuel ratio of an air-fuel mixture to be supplied to an engine is varied so that it is alternately leaner and richer than the stoichiometric air-fuel ratio. When the temperature TCAT of the NOx purifying device exceeds a deterioration recovery temperature STCAT2 while the air-fuel ratio variation control is being executed, the SOx removing flag FHLSOx is set to "1," and for a period equivalent to the deterioration recovery time TRSOx, the air-fuel ratio is maintained richer than the stoichiometric air-fuel ratio. <IMAGE>
申请公布号 DE60024713(D1) 申请公布日期 2006.01.19
申请号 DE2000624713 申请日期 2000.04.28
申请人 HONDA GIKEN KOGYO K.K., TOKIO/TOKYO 发明人 SUGIURA, KENJI;OONO, HIROSHI;SAKANUSHI, MASAHIRO;YAGISAWA, KEIICHI
分类号 F01N3/08;F02D21/08;F02D41/02 主分类号 F01N3/08
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