内燃機関の燃料噴射制御装置

专利申请号：JP20160019879

公 开 号：JP6451659(B2)

发 明 人：福田 敦史 井上 政広 安永 将之 山本 舞名美 

申 请 日：20190116

公 开 日：20160204

专利主分类号：F02D41/32

摘      要：PROBLEM TO BE SOLVED: To provide a fuel injection control device of an internal combustion engine which suppresses a deviation between a total amount of fuel which is injected from an in-cylinder injection valve at a compression stroke and a required injection amount, and can suppress the lowering of the stability of an engine operation when the engine operation for dividing fuel injection to a combustion chamber by the in-cylinder injection valve at the compression stroke into a plurality of times is ***: A control device 50 of an internal combustion engine comprises: a calculation part 51 which decides a split number of fuel injection at a compression stroke, and calculates an electricity-carrying time to an in-cylinder injection valve 14 at each injection which is divisionally performed at the compression stroke;and a control part 52 for controlling the in-cylinder injection valve 14 on the basis of a calculation result by the calculation part 51. When at least one of the air calculated electricity-carrying times at each injection is included in an instable region, the calculation part 51 decreases the split time by prohibiting the execution of the most retardant injection out of each injection, and recalculates the electricity-carrying time at the remaining injection at which the execution of the most retardant injection is not *** DRAWING: Figure 1