发明授权
- 专利标题: Air-fuel ratio control system for internal combustion engine
- 专利标题(中): 内燃机空燃比控制系统
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申请号: US166027申请日: 1993-12-14
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公开(公告)号: US5462039A公开(公告)日: 1995-10-31
- 发明人: Kiyotaka Mamiya , Michihiro Imada , Takanobu Morimasa
- 申请人: Kiyotaka Mamiya , Michihiro Imada , Takanobu Morimasa
- 申请人地址: JPX Hiroshima
- 专利权人: Mazda Motor Corporation
- 当前专利权人: Mazda Motor Corporation
- 当前专利权人地址: JPX Hiroshima
- 优先权: JPX4-332978 19921214
- 主分类号: F02D41/02
- IPC分类号: F02D41/02 ; F02D41/14
摘要:
During an air-fuel ratio feedback control based on an oxygen concentration in exhaust gases which converges an air-fuel ratio toward a target ratio suitable for a satisfactory purifying efficiency of a catalyst, the air-fuel ratio is coercively deflected so as to make a fuel mixture richer and leaner alternatively. An extent of deflection of the air-fuel ratio is set larger before the catalyst has not yet been activated sufficiently.
公开/授权文献
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