| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection control device which can suppress a sticking amount of fuel to a piston top surface even when a fuel amount is increased in a cylinder fuel injection internal combustion engine. SOLUTION: In an intake stroke injection, the start timing of fuel injection is delayed in accordance with an increase correction amount of injection fuel. In this way, as compared with a liquid-state fuel flying region Al without increase correction, a direct hit to a piston top surface is eliminated in a liquid- state fuel flying region D1 applying increase correction, and the piston top surface is prevented from being exposed in liquid-state fuel for a long time. Accordingly, even when fuel is increased, increasing of a sticking amount of fuel to the piston top surface can be suppressed, so as to prevent generation of a problem by deposition of carbon. |
