| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection control device of a diesel engine capable of reducing the quantity of white smoke generated in large quantity immediately after starting an engine and of shortening the start time during starting the engine. SOLUTION: Cooling water temperature Tw is detected by a signal from a cooling water temperature sensor 40 (S103). Common rail pressure P1 which enables fuel injection to start is set based on the cooling water temperature Tw detected in STEP S103 (S104). The current common rail pressure Pr is detected by a signal from a rail pressure sensor 30 (S105). Whether the common rail pressure Pr detected in STEP S105 is greater than or equal to the common rail pressure P1 set in STEP 104 or not is determined (S106). If Pr is greater than or equal to P1 (Yes in S106), an injector 26 is commanded to start first fuel injection (S107). The fuel injection is started by energizing the solenoid valve 28 of the injector 26, thereby starting the engine (S108). COPYRIGHT: (C)2008,JPO&INPIT
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