发明公开
EP1983181A1 FUEL-AIR RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
审中-公开
STEUERUNG DES KRAFTSTOFF-LUFT-VERHÄLTNISSESFÜREINEN VERBRENNUNGSMOTOR
- 专利标题： FUEL-AIR RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
- 专利标题（中）： STEUERUNG DES KRAFTSTOFF-LUFT-VERHÄLTNISSESFÜREINEN VERBRENNUNGSMOTOR
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申请号： EP07714129.9申请日： 2007-02-07
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公开(公告)号： EP1983181A1公开(公告)日： 2008-10-22
- 发明人: MIZOGUCHI, Hiroaki , FUJIWARA, Takahiko , NAKATA, Kunihiko , SAKURAI, Kenji , ICHINOSE, Hiroki , KAWAI, Masaaki , HIRATA, Atsunori
- 申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
- 申请人地址： 1, Toyota-cho, Toyota-shi. Aichi-ken, 471-8571 JP
- 专利权人： TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人： TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址： 1, Toyota-cho, Toyota-shi. Aichi-ken, 471-8571 JP
- 代理机构： Albutt, Anthony John
- 优先权： JP2006029535 20060207
- 国际公布： WO2007091721 20070816
- 主分类号： F02D41/06
- IPC分类号： F02D41/06 ; F01N3/20 ; F01N3/24 ; F02D45/00
摘要：
The combustion air-fuel ratio is made leaner than the stoichiometric air-fuel ratio at the time of engine startup and the combustion air-fuel ratio is made richer than the stoichiometric air-fuel ratio and the exhaust downstream part of the three-way catalyst apparatus is raised in temperature when it is judged that just the exhaust upstream part of the three-way catalyst apparatus arranged in the engine exhaust system has been raised to the catalyst activation temperature.
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