The Optimization Of Transmission Shift Solenoid Ball Valves

In this paper, we study the Shift solenoid ball valve,which also be called the solenoidshift ball valve, the valve core is steel ball structure. Shift solenoid valve as a hydraulic valve,which is used in the automatic transmission of hydraulic operating system and is one of thecore elements, by controlling the intake oil passage opening and closing of the automatictransmission upshifts and downshifts function, it plays a crucial role in the performance ofexcellent shift quality, so it directly affects performance of the vehicle. Therefore, studyingthe shift solenoid valve’ structure and performance has a good practical significance andpractical value, to enhance the overall performance of the gearbox has a critical influence.First of all, the working principle and basic structure of the solenoid valve is determined,according to the hydraulic system working pressure and the rated flow, the preliminary designthe relevant geometric parameter of the shifting solenoid valve, using3D CAD softwareCATIA to design shift solenoid valve parts, and completed the3D assembly. Secondly, shiftsolenoid valve simulation model is established by using AMESim software, through thedynamic response analysis; The simulation data of the original rational test is in accordancewith the experimental data, verify the validity of the model. And pressure loss characteristicsof related parameters respectively, leakage characteristics, dynamic response simulation,finally determine the dynamic performance is the most stable shift structure size parameters ofthe electromagnetic valve, namely the optimal size parameters. Using the workbench softwareshifting solenoid valve body flow model is established, is empty of CATIA assembledelectromagnetic shift valve body model; Using finite element analysis software ANSYSICEM CFD flow model of grid; Then with the help of Fluent software to meet the qualityrequirements of the grid fluid dynamics analysis, get the passage hydraulic oil flow velocity field and pressure field in the cloud, based on the velocity field and turbulent kinetic energyand the pressure field contours were analyzed, and thus to targeted optimization flow channel.Finally, the developed optimal shifting solenoid valve structure model, and on theexperimental bench for the related performance testing, it is concluded that the experimentaldata and analysis of experimental data.At the same time, the use of three-dimensionalsoftware of CATIA to build shift solenoid valve parts modeled accordingly. Then, by meansof CATIA to optimization and assembly models. Then by Workbench software to buildmodels to simulate the flow field, namely the empty body model assembled CATIA model;By means of ANSYS ICEM CFD flow field in the mesh model; then by means of Fluent tomeet the quality required grid flow field simulation analysis, flow field velocity and pressurerunning cloud field, by conducting an analysis of the velocity field and pressure field of cloud,which carry out the purpose of the flow channel optimization. Finally, the trial of the optimalshift solenoid valve structure model and experiment in the experimental stage of its relativeperformance, results of experimental data and experimental data analysis.In general, through the theoretical analysis of the preliminary design and geometricparameters of the electromagnetic shift valve structure model, then using AMESIm numericalsimulation analysis to optimize the geometric parameters, at the same time with the help ofFLUENT software, optimization design flow channel model, ultimately determine the optimalstructure.Simulation results show that: when the inlet diameter isf2.0mm and diameter ofsteel balls is3mm, the shift of the dynamic performance of the solenoid valve designrequirements are met, and the relative performance of the most stable, is selected as theoptimal structural parameters. At the same time, the trial product related experimental datashow that the simulation data and experimental data are basically identical.Through this study of shift solenoid valve design and optimizatio, summarizes thetheoretical methods for hydraulic valves set design, this method can not only savedevelopment costs, shorten development cycles, reduce development risk, and also canpromote products updates and performance improvements, to address the constraints of theshift solenoid valve problems and provide theoretical guidance for the future design of similar products.