公开(公告)号：US06516780B2

公开(公告)日：2003-02-11

申请号：US09845615

申请日：2001-04-30

申请人： Ching-Po Liu

发明人： Ching-Po Liu

IPC分类号： F02P510

CPC分类号： F02D35/023 ,  F02D41/1498 ,  F02D2200/1015 ,  F02P5/1508 ,  F02P5/153 ,  Y02T10/46

摘要： An engine control system and method include determining which engine cylinder is performing at a level differently than a majority of the other cylinders. Whenever a cylinder output is below that of the other cylinders, an engine performance variable, such as the spark angle, preferably is adjusted to bring the cylinder indicated mean effective pressure into conformance with that of the other cylinders. By adjusting the individual cylinder performance variable, engine performance is brought to a desired level of smoothness, especially under conditions such as engine idle.