| 摘要 |
A control device for a diesel engine equipped with: a glow plug that heats the combustion chamber of the diesel engine during a cold start; a common rail fuel injection device capable of executing a multi-stage pilot injection before a main injection; and a control unit that controls the common rail fuel injection device. When power is supplied to the glow plug and when a cold start is performed with an outside temperature of 0°C or lower, the control unit controls the common rail fuel injection device so as to execute a multi-stage injection of two or more pilot injections. In addition, the control unit sets the injection amount for the initial pilot injection so as not to exceed the injection amount of the main injection and to be within a range of 35-80% of the total pilot injection amount, which is the sum of the injection amounts for all of the pilot injections. Furthermore, the control unit sets the injection amount for each pilot injection executed after the initial pilot injection so as to be less than the injection amount for the initial pilot injection. |
