FUEL INJECTION CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE

摘要

The fuel injection control system corrects the output signal of an air-flow sensor (3) in the return blow operating region of the engine by making a first insertion according to a correction factor calculated on the basis of both the opening of a throttle valve (5) for regulating the quantity of suction air and the rotational frequency of the engine. A further correction is made to the corrected output signal by correcting on the basis of the temperature of the suction air. Finally fuel injection quantity is determined on the basis of the signal of the twice corrected suction air quantity.