FUEL INJECTION CHARACTERISTIC LEARNING DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

A fuel injection characteristic learning device includes a pressure sensor (51) that detects a fuel pressure inside a fuel supply system including a fuel injection valve (20), and the device executes a learning processing of learning an operation characteristic of the fuel injection valve (20) on the basis of the fuel pressure detected by the pressure sensor (51). A main processing unit (42) executes a determination processing of determining whether or not the learning processing is able to be executed, on a basis of an engine parameter. A subsidiary processing unit (41) receives a determination result of the determination processing from the main processing unit (42), and executes the learning processing on the basis of the received determination result.