发明名称 |
Air-Fuel ratio control system for internal combustion engine and control method thereof |
摘要 |
An air-fuel ratio control system for an internal combustion engine estimates an oxygen storage amount of a catalyst based on a record of an oxygen storage amount, and controls an air-fuel ratio based on the estimated oxygen storage amount. The catalyst is divided into multiple sections in a flow direction of an exhaust gas, the oxygen storage amount in a specified section is estimated according to a behavior of an exhaust gas on upstream and downstream sides of the respective specified sections, and the air-fuel ratio is controlled based on the estimated oxygen storage amount in the specified section. |
申请公布号 |
US2002078683(A1) |
申请公布日期 |
2002.06.27 |
申请号 |
US20010025452 |
申请日期 |
2001.12.26 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
KATAYAMA AKIHIRO;NAGAI TOSHINARI;KAMOTO AKIRA;KATO NAOTO;KOJIMA SHINJI;BABA NAOKI |
分类号 |
F02D45/00;F01N3/20;F01N3/24;F01N13/02;F01N13/04;F02D41/02;F02D41/14;(IPC1-7):F01N3/00;F01N7/00 |
主分类号 |
F02D45/00 |
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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