| 摘要 |
PURPOSE:To enable a device to well ensure acceleration performance from every operational condition, by correcting an additional injection pulse width and an extra increase of a normal pulse in accordance with the acceleration condition of an internal-combustion engine. CONSTITUTION:When an internal-combustion engine 10 is under operation, a control unit 15, first obtaining a time change rate DELTATH of a throttle valve opening TH detected by an opening sensor 16, refers, when a value of the rate is in a predetermined value X or more, to a table both a correction quantity K1 on the basis of an output of a temperature sensor 17 and a correction quantity K2 on the basis of the rate DELTATH. While the control unit, on the basis of a basic injection quantity immediately before detecting acceleration ad an engine speed N obtained from an output of a pulser 19, refers a correction quantity Kmn to a map. And the control unit, multiplying an output pulse width Ti immediately before detecting the acceleration by said correction quantities K1, K2, Kmn and obtaining an additional injection quantity TADD suitable for an acceleration condition in that time, controls an injection quantity from a fuel injection valve 3 in accordance with said injection quantity TADD.
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