| 摘要 |
<p>A diesel engine (1) is provided with a common rail (33) to which fuel pressurized by an engine-driven supply pump (32) is supplied, and a fuel injection valve (34) which injects and supplies the fuel in the common rail (33) into a cylinder (11). When the rotation phase of the engine (1) is detected when the engine (1) is restarted, an electronic control device (50) detects the actual rail pressure that is the fuel pressure within the common rail (33) by a rail pressure sensor (55) and determines whether or not the actual rail pressure is greater than or equal to a lower limit within a fuel pressure range in which the operation of the fuel injection valve (34) is ensured. When determining that the actual rail pressure is greater than or equal to the lower limit, the electronic control device performs the first fuel injection at a fuel injection timing immediately after the determination and sets the injection amount command value for the fuel injection valve (34) for performing the first fuel injection larger as the actual rail pressure is lower.</p> |
