| 摘要 |
PURPOSE:To always correctly control fuel feeding amount by rewriting the correction data memorized into a memory apparatus used for the calculation of a fuel feeding amount only in a prescribed engine operation state. CONSTITUTION:When an engine is in operation, the fundamental injection amount Tp is calculated by a controller 5 on the basis of each output signal of an air-flow sensor 2 and a crank-angle sensor 6, and said fundamental injection time is corrected on the basis of each output signal of a water-temperature sensor 7, O2 sensor 8, intake-air temperature sensor 9, throttle sensor 14, etc., and an injector 13 is drive-controlled according to the corrected injection time T1. A variety of correction coefficients utilized for the correction are obtained according to the engine operation state, and successively rewritten and stored into a RAM22. In this case, rewriting is carried-out when the cooling-water temperature maintains stationary state over a prescribed value, and the load and the revolution speed of the engine are not varied for a prescribed time. |
