| 发明名称 |
EXHAUST EMISSION CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique for surely reducing and releasing NO<SB>x</SB>stored in a NO<SB>x</SB>catalyst so as to improve purifying efficiency, in NO<SB>x</SB>reduction processing performed after activation of the NO<SB>x</SB>catalyst. <P>SOLUTION: When the determination of the immediate aftermath of the activation of the NO<SB>x</SB>catalyst is made (S101 to S102), and when it is determined that a predetermined amount or more of NO<SB>x</SB>is stored in the NO<SB>x</SB>catalyst at that time point (S103), NO<SB>x</SB>reduction processing is performed at that time point so as to reduce and release the NO<SB>x</SB>already stored in the NO<SB>x</SB>catalyst (S104). <P>COPYRIGHT: (C)2008,JPO&INPIT |
| 申请公布号 |
JP2007278120(A) |
申请公布日期 |
2007.10.25 |
| 申请号 |
JP20060103110 |
申请日期 |
2006.04.04 |
| 申请人 |
TOYOTA MOTOR CORP;TOYOTA INDUSTRIES CORP |
发明人 |
SHIBATA DAISUKE;SAWADA YUTAKA;UMEHARA TSUTOMU |
| 分类号 |
F01N3/20;B01D53/94;F01N3/08 |
主分类号 |
F01N3/20 |
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