CONTROL DEVICE FOR ACCELERATION INCREASE FUEL AMOUNT IN ELECTRONICALLY CONTROLLED FUEL-INJECTION INTERNAL COMBUSTION ENGINE

摘要

PURPOSE:To prevent air-fuel ratio from becoming an overlean state, by correcting an intake air flow amount on the basis of a peak intake air flow amount when an engine is in accelerating operation so that a proper acceleration increase fuel amount can be ensured even if detection accuracy or the like of the intake air flow amount deteriorates. CONSTITUTION:A control device has an intake air flow amount arithmetic means B which calculates an intake air flow amount in accordance with an intake air flow amount signal from an intake air flow amount detecting means A. While the device has a peak intake air flow amount detecting means D which detects a peak intake air flow amount of the pulsating intake air flow amount on the basis of said intake air flow amount signal when an engine is detected to be in accelerating operation by an acceleration operative condition detecting means C. And the control device, which corrects by a correcting means E the intake air flow amount corresponding to the detected peak intake air flow amount while sets by an acceleration increase fuel amount setting means F an acceleration increase fuel amount on the basis of the intake air flow amount, after it is corrected, is constituted so as to control a fuel injection valve G to be driven by a driving means H in accordance with the set acceleration increase fuel amount.