发明名称 |
CONTROL APPARATUS FOR DIRECT INJECTION ENGINE |
摘要 |
In a direct injection engine which comprises an injector (22) for directly injecting fuel into a combustion chamber (15) and a lean NOx catalyst (36), an ECU (50) changes the air-fuel ratio from that higher than the stoichiometric air-fuel ratio to that substantially equal to or lower than the stoichiometric air-fuel ratio. When the air-fuel ratio has changed from a air-fuel ratio higher than the stoichiometric air-fuel ratio to an air-fuel ratio substantially equal to or lower than the stoichiometric air-fuel ratio, the ECU controls to divisionally execute fuel injection from the injector (22) in at least two injections, i.e., leading injection that starts within the intake stroke period and trailing injection that starts within the compression stroke period.
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申请公布号 |
US2002020373(A1) |
申请公布日期 |
2002.02.21 |
申请号 |
US20000487311 |
申请日期 |
2000.01.19 |
申请人 |
NISHIMURA HIROFUMI;KUJI YOUICHI |
发明人 |
NISHIMURA HIROFUMI;KUJI YOUICHI |
分类号 |
F02P5/15;F01N3/08;F01N3/20;F01N3/24;F02B75/12;F02D21/08;F02D41/02;F02D41/04;F02D41/14;F02D41/30;F02D41/34;F02D41/40;F02D43/00;F02M25/07;F02M45/02;(IPC1-7):F01L9/02;F01L1/04;F02M25/06 |
主分类号 |
F02P5/15 |
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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