发明名称 |
INTERNAL COMBUSTION ENGINE CONTROL DEVICE |
摘要 |
This control apparatus obtains a relation (trade-off line) between NOx generation amount and PM generation amount with EGR ratio serving as a parameter from an NOx generation amount estimation model which calculates the NOx generation amount on the basis of the oxygen mole concentration of intake gas and a PM generation amount estimation model which calculates the PM generation amount on the basis of an excess air factor. Further, the control apparatus obtains a straight line (ratio determination line) which passes through a point (appropriate point A) corresponding to a combination of steady-condition appropriate values of the NOx generation amount and the PM generation amount under the present operating conditions and which has a slope K determined in consideration of a regulation value based on a law relating to emission control. The control apparatus uses an intersection (target point B) between the trade-off line and the ratio determination line as an emission target value, and sets an EGR ratio target value Regrt to an EGR ratio corresponding to the target point B. |
申请公布号 |
EP1790840(A1) |
申请公布日期 |
2007.05.30 |
申请号 |
EP20050785811 |
申请日期 |
2005.09.13 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
IMAI, DAICHI;NAKAYAMA, SHIGEKI;FUKUMA, TAKAO |
分类号 |
F02D21/08;F02D45/00;F02M25/07 |
主分类号 |
F02D21/08 |
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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