发明名称 |
Controller for internal combustion engine |
摘要 |
The present invention is directed to provide a controller for an internal combustion engine, capable of suppressing deterioration in drivability of an engine. A controller for an internal combustion engine has lean control means for calculating a torque margin from a reference engine speed and an actual engine speed and setting a combustion air-fuel ratio of an internal combustion engine to the lean side on the basis of the torque margin. In addition to correction of a fuel injection amount by the lean control means, the fuel injection amount is further corrected on the basis of a final correction value for reducing deterioration in drivability. The final correction value is set by selecting either a correction value which is set on the basis of an engine speed fluctuation amount or a final correction value of last time, which suppresses deterioration in drivability more. Thus, the operation of setting the air-fuel ratio to the lean side while considering deterioration in drivability can be performed.
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申请公布号 |
US2003010317(A1) |
申请公布日期 |
2003.01.16 |
申请号 |
US20020195305 |
申请日期 |
2002.07.16 |
申请人 |
IIDA HISASHI;HASEGAWA JUN;OKAMOTO YOSHIYUKI;NAKANO TOMOAKI |
发明人 |
IIDA HISASHI;HASEGAWA JUN;OKAMOTO YOSHIYUKI;NAKANO TOMOAKI |
分类号 |
F02D41/14;(IPC1-7):F02D41/14;F02P5/15 |
主分类号 |
F02D41/14 |
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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