| 摘要 |
PURPOSE:To improve responsiveness by jetting all the quantity in the first injection timing while jetting the acceleration increased quantity in the second injection timing in the initial stage of acceleration, in the two times injection system in every combustion cycle. CONSTITUTION:The signals of an air flow meter 6, crank angle sensor 9, throttle opening degree sensor 8, etc. are input into a controller 10, and the fundamental injection quantity is calculated from the intake air quantity and the number of revolution. The effective injection quantity which is obtained by correcting the fundamental injection quantity according to the engine operation state is jetted in the first injection timing in the initial stage of the intake process. When acceleration is detected, the acceleration increased quantity corresponding to the variation quantity of the throttle opening degree is calculated, and said quantity is jetted in the second injection timing after the first injection timing. Thus, the responsiveness in acceleration can be improved.
|
