| 摘要 |
PURPOSE:To avoid the situation for a vehicle unable to perform its running operation as safely as possible, by controlling a device so as to stop supply of fuel when a supercharge pressure and an engine operative condition, detected by a supercharge pressure detecting means and an engine operative condition detecting means, are both abnormal. CONSTITUTION:A fuel injection pulse arithmetic circuit 12, inputting an ignition signal applied to a spark plug and an intake air floe detection signal detected by an air flow meter, here calculates an injection pulse signal to be output to a fuel cut decision circuit 13. And this decision circuit 13 stops an output of the above injection pulse signal to a driver circuit 14 when an on-signal is input from a pressure switch 9 in an abnormal condition with a supercharge pressure in a predetermined value or more and in an abnormal condition that an engine speed calculated from the ignition signal and an intake air flow are respectively in a preset value or more. While the circuit 13, outputting the injection pulse signal to the driver circuit 14 when one of the engine speed and the intake air flow is in a value less than the preset value, actuates a fuel injection valve 15. |
