发明名称 |
Engine exhaust purification device |
摘要 |
An oxygen storage amount of the catalyst (3) is estimated using a detection result from a front A/F sensor (4). An HC storage amount is calculated as a time integral of the product of the storage rate by the catalyst (3), the air-fuel ratio and the intake air amount, and a target air-fuel ratio is corrected so that a deficiency relative to a target amount of the oxygen storage amount is compensated based on this computation result.
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申请公布号 |
US6490859(B2) |
申请公布日期 |
2002.12.10 |
申请号 |
US20010790725 |
申请日期 |
2001.02.23 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
KAKUYAMA MASATOMO;MATSUNO OSAMU;KAKIZAKI SHIGEAKI |
分类号 |
F01N3/08;B01D53/94;F01N3/20;F01N11/00;F02D41/02;F02D41/04;F02D41/14;(IPC1-7):F01N3/00 |
主分类号 |
F01N3/08 |
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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