CONTROLLING METHOD OF FUEL SUPPLY RATE FOR INTERNAL COMBUSTION ENGINE

摘要

PURPOSE:To prevent the occurrence of the sputter of an ignition plug and the degradation of operative characteristics at the time of engine warming-up, and furtherto reduce a fuel consumption by an increase-decrease control of a fuel increase value in accordance with the rotation speed of the engine. CONSTITUTION:The output from an air flow sensor 18 and coolant temperature sensor 46 is inputted into a microprocessor 62 through an A/C converter 60 in a control circuit 30. The output of crank angle sensors 38 and 40 is inputted into the microprocessor 62 through an I/O circuit 64. The calculation result of the microprocessor 62 is outputted to a fuel injection valve 26 through another I/O circuit 66, thereby controlling the fuel increase value to increase or decrease in accordance with the engine rotation speed.