发明名称 |
Interne Abgasrückführungsmengenschätzung zur Steuerung von Gaswechselventilen und Zündung |
摘要 |
A quantity of internal EGR gases remaining in an engine is estimated in accordance with an exhaust valve closing timing (EVC), an intake valve opening timing (IVO) and an engine speed (Ne). The estimated internal EGR quantity (EGRREM, X(v)) is a sum of a base quantity (EVEGR0) and an increase correction quantity (OLEGR1) determined in accordance with a valve overlap period, its middle angular position in crankshaft rotation and intake pressure. The estimated internal EGR quantity is used for estimating an engine cylinder intake air quantity and for engine control such as ignition timing control, and intake air quantity control. <IMAGE> |
申请公布号 |
DE60128438(D1) |
申请公布日期 |
2007.06.28 |
申请号 |
DE2001628438 |
申请日期 |
2001.07.11 |
申请人 |
NISSAN MOTOR CO. LTD. |
发明人 |
KAWASAKI, TAKAO;ARAI, MASAHIRO |
分类号 |
F02D13/02;F01L9/04;F02D21/08;F02D37/02;F02D41/00;F02D41/18 |
主分类号 |
F02D13/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|