| 摘要 |
PURPOSE:To avoid excess increase of the quantity of injected fuel by reducing the upper limit thereof in the accelerated duration through which the output of an air flow meter overshoots. CONSTITUTION:In a fuel injection controller 25, RAM30, ROM31, CPU32, I/O ports 33 and 34 and output ports 35 and 36 are connected to each other via a bus 37 and CLOCK38 sends a clock pulse to CPU32. The analog signals of an air flow meter 2 and water temperature sensor 20 are issued to the I/O port 33 via a multiplexer 40 and an A/D converter 41. The pulses of a cylinder descriminating sensor 21 and a revolution angle sensor 22 are sent to the I/O port 34 via a shaping circuit 42. An ignition system 26 and a fuel injection valve 7 receive signals from the output ports 33 and 36, through drive circuits 51, 52 respectively and perform specified actions. The controller performs specified arithmetic operation, on account of which excessively increased quantity of injected fuel may be avoided even when the output of the air flow meter overshoots and the resulting smoking from an ignition plug and reduced output may be prevented. |
