Control apparatus for internal combustion engine

摘要

A control apparatus for an internal combustion engine in the present invention is provided with a fuel injection valve (12) which is capable of directly injecting fuel into a cylinder, and which includes: a needle valve (12b) that has a seat contact part (12b1) at its distal end part; and a nozzle body (12a) that has a seat part (12a1) with which the seat contact part (12b1) comes into contact, a fuel receiving part (12d) formed downstream of the seat part (12a1), and a plurality of nozzle holes (12e) formed downstream of the seat part (12a1). The control apparatus executes learning control of fuel injection amount to learn the fuel injection amount. Further, the control apparatus executes pre-learning injection of fuel prior to execution of learning-use injection of fuel for the learning control.

主权项

1. An internal combustion engine, comprising a fuel injection valve which is capable of directly injecting fuel into a cylinder,
wherein the fuel injection valve includes: a needle valve that has a seat contact part at its distal end part; and a nozzle body that has a seat part with which the seat contact part comes into contact, a fuel receiving part formed downstream of the seat part, and at least one nozzle hole formed downstream of the seat part, wherein the internal combustion engine further comprises an engine control processor that: executes learning control of fuel injection amount to learn the fuel injection amount, wherein the learning control includes an execution of learning-use injection of fuel; and executes pre-learning injection of fuel prior to the execution of learning-use injection for the learning control, wherein the pre-learning injection is executed at a same cycle or at one cycle before a cycle at which the learning-use injection is executed, and wherein the pre-learning injection is a filling-use injection that fills the fuel receiving part with fuel, and the amount of the pre-learning injection is less than or equal to the amount of the learning-use injection.