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《China Mechanical Engineering》 2016-19
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Research on Buffering Process of Electro-hydraulic Variable Valve Train

Tu Bo;Tian Hua;Wei Haiqiao;Pan Mingzhang;State Key Laboratory of Engine Combustion,Tianjin University;  
The buffering of electro-hydraulic variable valve train might affect the impact properties and the response performance of the valve motions.Therefore,a electro-hydraulic variable valve train system was designed based on AMESim.Throttling area and throttling stroke of the throttle possessed effects on the buffering process of the valve motions.In addition,genetic algorithm was used to search for the optimization control parameters of throttle to improve buffering performance of the valve motions.It may be concluded that decreasing throttling stroke and increasing throttling area may improve the response performance of valve motions.The final speed of valve stroke may be greatly optimized by genetic algorithm,and may be reduced to 0.11m/s in valve opening process and 0.07m/s in valve closing process,as well as guarantee of the response performance of valve motions.
【Fund】: 国家自然科学基金资助项目(51476114)
【CateGory Index】: TK403
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