| 摘要 |
PURPOSE:To perform fuel control in a highly accurate manner, by controlling a fuel injection valve in a cylinder according to the specified load, while having another fuel injection valve in a suction passage operated at a driving range of more than the specified load, in case of an engine installing the fuel injection valve in the cylinder and the suction passage each. CONSTITUTION:A first fuel injection valve 21 is installed in a cylinder of an engine, while a second fuel injection valve 23 is installed in a suction passage, respectively. And, there is provided with a load detecting device 24 detecting engine load, output of which is inputted into both first and second injection valve driving devices 25 and 26. The first fuel injection valve driving device 25 makes out a fuel injection pulse in pulse width corresponding to load when engine load is less than the setting load, but when it is more than the setting load, it makes out the fuel injection pulse of constant pulse width each, and it is made so as to be added to the first injection valve 21. Likewise, the second injection valve driving device 26 adds the fuel injection pulse to the second injection valve 23 at the time of driving the engine load is more than the specified load, whereby a portion of shortage in a fuel injection quantity is made so as to be sprayed.
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