Fuel supply control method and system for internal combustion engines equipped with exhaust gas recirculation control systems

摘要

A method and a system for electronically controlling the quantity of fuel being supplied to an internal combustion engine equipped with an exhaust gas recirculation control system. A plurality of sets of basic values of fuel quantity are stored beforehand, which are set as a function of at least two parameters indicative of operating conditions of the engine, for selection in response to the rate of recirculation of exhaust gases being effected by the exhaust gas recirculation control system. Read from a selected set of basic values of fuel quantity is a basic value of fuel quantity which corresponds to actual values of the above at least two parameters detected, and a quantity of fuel is supplied to the engine, which corresponds to the read basic value of fuel quantity.