发明授权
- 专利标题： Air/fuel ratio control apparatus for an internal combustion engine
- 专利标题（中）： 用于内燃机的空气/燃料比控制装置
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申请号： US09998424申请日： 2001-12-03
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公开(公告)号： US06594988B2公开(公告)日： 2003-07-22
- 发明人: Hideki Takubo , Tadahiro Azuma
- 申请人： Hideki Takubo , Tadahiro Azuma
- 优先权： JP2001-196363 20010628
- 主分类号： F01N300
- IPC分类号： F01N300
摘要：
Achieved is an air/fuel ratio control apparatus for an internal combustion engine where the purification ability of a three-way catalyst is brought back to an optimal state immediately after a fuel cut by expelling oxygen absorbed by the three-way catalyst due to the fuel cut without being affected by the oxygen absorption amount of the three-way catalyst before the fuel cut.