| 摘要 |
PURPOSE:To always jet out a necessary quantity of fuel by detecting the parameter value which represents the pressure supplied into a fuel injection valve and setting the correction value corresponding to the parameter value and correcting the valve opening time of the fuel injection valve according to the correction value. CONSTITUTION:A fuel pump 14 is driven by the operation of a key switch 13, and a starter 12 is operated to start an engine 1. At this time, an ECU 7 judges the engine operation state from a variety of parameter signals of a water temperature sensor 11, revolution speed sensor 16, etc. The valve opening time of a fuel injection valve 19 corresponding to the result of the judgement is calculated. At this time, the valve opening time is calculated according to the valve opening standard time set in accordance with the water temperature, voltage correction coefficient calculated in accordance with the voltage supplied into the fuel pump 14 from a power source 15, revolution speed correction coefficient set in accordance with revolution speed, and the voltage correction coefficient set in accordance with the valve opening driving voltage supplied into the fuel injection valve 19. |
