Evaluation method for comprehensive performance of engine oil by bench test
In order to quickly and accurately evaluate the matching situation between the engine and engine oil,a comprehensive oil performance test method by bench test is designed for a 2.0 L diesel engine.The engine oil formula is tested and improved,and the comprehensive oil performance is evaluated and verified on real vehicle roads.Based on the targeted evaluation requirements of engine oil,a bench test cycle is designed in full speed-full load condition,high torque condition at intermediate speed as the main working cordition,and commonly used road driving condition,extreme smoke condition,and idle condition as auxiliary.The oil performance parameters measured through the comprehensive performance bench test have a high degree of agreement with the actual road test,and show a certain degree of harshness,which can effectively replace the evaluation of the actual road test.