FUEL INJECTION CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

摘要

The fuel injection control system employs a microcomputer to enhance various engine control functions relative to sensed engine operating parameters which include exhaust gas oxygen concentration and also to program data stored in a RAM. The system results in improved fuel consumption characteristics without degradation of the engines torque characteristics or exhaust gas properties. A hot-wire type air flow sensor disposed in the air passage provides instantaneous signals to the computer of the pulsating intake air velocity. The timing of fuel injection via the valve is controlled by the computer so that injection is terminated coincidently with the intake air velocity attaining a mix. value.