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| Simulation and Experimental Research on Electronic Control Design of A High Intensity Diesel Engine Cooling System |
| DOI：10.13949/j.cnki.nrjgc.2022.06.013 |
| Key Words:diesel engine electrically controlled cooling fuel consumption rate heat balance |
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| Abstract:To solve the problem that the traditional cooling system does not match the cooling demand of diesel engine， the simulation research of electronic control design of the cooling system was carried out. Based on Simulink simulation software， the simulation model of electronically controlled cooling system was designed， the electronically controlled cooling control strategy was proposed， and the verification simulation of electronically controlled cooling control strategy under variable diesel engine working conditions was carried out. The electronic control transformation of traditional cooling components （electronic control seawater pump， electronic control freshwater pump and electronic thermostat） was carried out， and the test bench of electronic control cooling system was built. Through the test， the influence of electronic control cooling on diesel engine fuel consumption and heat balance was analyzed. The results show that， compared with conventional cooling systems， the fuel consumption rate of the electronically controlled cooling system was reduced by 9.4 g/（kW·h）， 6.8 g/（kW·h） and 3.9 g/（kW·h） respectively at the diesel engine operating condition of 900 r/min and 30% load rate， 1 200 r/min and 60% load rate， and 1 500 r/min and 90% load rate. Fuel economy and heat distribution have been improved for the electronically controlled cooling system. |
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