| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent overheating of an engine by converting an accelerator opening signal used for calculating a fuel-injection rate into a dummy accelera tor opening signal of a predetermined pattern programmed beforehand when an engine high temperature condition is detected, and inputting the signal to an electronic control type fuel injection device. SOLUTION: During operation of an engine 2, it is judged in an ECU 71 whether an engine is in a high temperature condition from a water temperature detected by a water temperature sensor 75. In the engine high temperature condition, it is judged whether a real accelerator opening is zero or not from an output of an accelerator opening sensor 73. In the case where the accelerator opening is not zero, a counter is operated, a present accelerator opening is held until a constant time is lapsed, and present engine rotating speed is held. After a time is lapsed for one hour, an accelerator opening is converted into a dummy accelerator opening (0) memorized in a ROM, and engine rotating speed is reduced to an idling condition so as to prevent an overheating condition of the engine.</p> |
