LNG DUAL-FUEL 천연가스엔진 제어시스템

The major cause of air pollution is due to vehicle exhaust gas, especially caused by heavy-duty diesel vehicles such as truck and urban buses. They form over 36% of total exhaust volumes even though the proportion is just below 3%. To solve this problem, the ministry of environment executes the air pollution improvement business that substitutes diesel urban buses for natural gas buses. As result, over 8,600 buses run in major cities presently and the plan to expand NGV to garbage trucks is under consideration. In this study, We develop Dual Fuel natural gas engine control system and controller for heavy-duty vehicle which is going to apply to heavy-duty diesel vehicles. Dual Fuel control system is attached to existing 13 liter engine. Dual Fuel control system such as injector driver and ECU are installed to operate actuators including natural gas and diesel injectors. We estimated the fuel system and engine power, compared the result with diesel engine.