发明名称 |
Control apparatus for direct-injection engine |
摘要 |
In steps S25 to S42, in order to activate an inactive catalyst earlier, the air-fuel ratio in a combustion chamber is set to be lambd≈1 during a period T1 after engine start until catalyst light-off at around 50% HC purifying ratio immediately after the HC purifying ratio begins to rapidly rise, before the catalyst warms up, divisional injection is made at least during the period T1 required until light-off is reached, and a swirl is weakened during the period T1 compared to a latter period which follows this period T1. The divisional injection is made and the swirl is strengthened even during the latter period.
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申请公布号 |
US2001018825(A1) |
申请公布日期 |
2001.09.06 |
申请号 |
US20010779631 |
申请日期 |
2001.02.09 |
申请人 |
KUJI YOUICHI;KUROKI MASAYUKI;TAGA JUNICHI;YOKOTA KAZUYA;ARAKI KEIJI |
发明人 |
KUJI YOUICHI;KUROKI MASAYUKI;TAGA JUNICHI;YOKOTA KAZUYA;ARAKI KEIJI |
分类号 |
F02P5/145;F01N3/08;F01N3/20;F01N3/24;F01N3/28;F02B17/00;F02B23/10;F02B75/12;F02D41/02;F02D41/06;F02D41/14;F02D41/34;F02D41/40;F02D43/00;F02D45/00;F02F3/28;F02M25/07;(IPC1-7):F01N3/00 |
主分类号 |
F02P5/145 |
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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