FUEL SUPPLY CONTROL DEVICE FOR ENGINE

摘要

PURPOSE: To enhance the accuracy of fuel injection from an injector by intending that the differential pressure between a fuel pressure and an intake pressure before or after the injector has a great influence upon the response of the injector in a fuel infection type engine. CONSTITUTION: A filling rate is computed on the basis of an intake air quantity exhibited by a signal from an air flow sensor 7 and an engine speed exhibited by a signal from an engine speed sensor 22 and at the same time an intake pressure of an engine 1 is estimated from the filling rate. The intake pressure is applied to the map of invalid injection time set in advance, thereby determining the invalid injection time in accordance with the differential pressure between a fuel pressure and an air intake pressure.