FUEL INJECTION DEVICE OF ENGINE

摘要

PURPOSE:To facilitate exchange of a fuel injection valve and thereby make an injection amount control device useable for various purposes by evaluating a basic fuel injection amount in responce to the amount of intake air and then evaluating the width of an injection pulse. CONSTITUTION:A fuel injection device includes a signal detecting means 19 for detecting an intake air amount supplied to an engine 1 or a signal associated therewith and an arithmetic operation means 21 for evaluating the injection amount of fuel supplied to the engine 1 in responce to the output of the signal detecting means 19. Further, it includes an injection valve driving signal arithmetic operation means 22 operating an injection valve driving signal in responce to the fuel injection amount from the fuel injection amount airthmetic operation means 21, and a fuel injection valve 8 driven in responce to the injection valve driving signal from the injection valve driving signal arithmetic operation means 22. During engine operation, a fuel injection amount in responce to an intake air amount is evaluated, and thereafter an injection valve driving signal (fuel injection time) corresponding to a fuel injection valve being used is evaluated.