Abstract
Electronic Unit Pump (EUP) system is a fuel injection system with high injection pressure which can be applied to control fuel quantity and injection timing flexibly. The EUP fuel injection system has prospective application in medium or heavy diesel engines. The research on electronic control unit which based on EUP fuel injection system for diesel engines was introduced. Pulse signal was collected by the input capture function, and then the average speed was calculated by the rolling average method. Cylinder detection and accurate timing were realized with camshaft and crankshaft signals. The fast and accurate control for EUP fuel injection system was realized with the Peak&Hold drive and Solenoid valve closure start-point control. Experimental results show that the control unit can meet the requirements of EUP system.
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