XD65 Diesel Engine Cooling System Optimization And Vehicle Test Reserch

A good car, the high temperature environment it is important to adapt to the performance indicators, it determines the scope of the market.XD65 diesel engine cooling system optimization, measuring the actual volume of XD65 diesel engine water jacket, measure the internal flow field of the flow resistance of diesel engine, measuring the heat release of diesel engine, to work on the vehicle cooling system matching optimization to provide practical basis. Diesel engine water flow field of CFD analysis conclusion, the oil cooler cooling capacity, improve, reduce the oil temperature. In order to figure out the XD65 diesel engine high temperature resistant ability, specialized in and pass the high temperature, high oil temperature test.In terms of JX3 pickup vehicle road test, mainly to carry out the smooth high speed and high speed climbing test and hills in the test. The choice of the two test content, strict inspection of the vehicle cooling system heat balance ability, to simulate JX3 pickup of actual operation condition of the target customer. Flat, high speed and high speed climbing test requires the vehicle under the condition of full load, open air conditioning, in the flat and have a long slope of highway, at top speed of expressway allows the car to run for 30 minutes. Low grade test, the requirements under the condition of the vehicle in full, open air conditioning to choose to have a certain slope in the long slope climbing road test at low speed, low speed of no more than 40 km/h, high speed not more than 70 km/h.In summary, optimized the vehicle through the smooth high speed and high speed climbing and in low-speed climbing trials, optimize the expected goal.