Electronic Control Unit Development for Unit Pump Diesel Engine

Electronic unit pump (EUP) fuel injection system has prospective application in medium or heavy diesel engine. Developing an ECU of EUP diesel engine is necessary to meet emission regulations and economic requirements. The structure and working principle of EUP fuel injection system was studied. An ECU was developed, which consists of digital circuit, power supply module, driving circuit and sensor signal processing circuit. A diesel engine management system named micro real time kernel was also designed to run the control program. The control strategies of injection timing and injection quantity were put forward. Experimental research on diesel engine verified the availability of the ECU system.