| 摘要 |
PURPOSE:To minimize the quantity of fuel injected for starting an engine, by judging the period for stopping injection of starting fuel based upon the engine temperature and the engine speed. CONSTITUTION:According to the present invention, there are provided a first temperature sensor 56 for detecting the engine temperature at the time when a starter switch 63 is closed and a second temperature sensor 58 for detecting the temperature during the while when the switch 63 is kept closed. In case of first starting of an engine, the maximum injection time of a starting fuel injection valve 45 is determined on the basis of the output of the first temperature sensor 56, while in case of second starting after failure of the first starting, the maximum injection time of the injection valve 45 is determined from the difference of the outputs of the two temperature sensors 56, 58. Here, arrangement is such that injection of starting fuel is stopped when the engine speed is greater than a prescribed value, or the starter switch 63 is opened, or the maximum injection time of the valve 45 has been passed. With such an arrangement, it is enabled to minimize the quantity of fuel injected for starting an engine and to thereby reduce the amount of unburnt substances contained in the exhaust gas. |
