Research On The Design And Control Strategy Of Independent Dual Valve Core Electrohydraulic Valve With Load Port

The demand for high-quality and efficient intelligent network connection operations of construction machinery is becoming increasingly urgent.Smart multi road valves are the core components of the above targets.Among them,the independent control technology of the load port is the core technology of smart multi road valves.In this article,a new type of load port independent dual valve core electric liquid valve is designed.In terms of configuration,high integration and disassembly can be considered.In principle,the degree of control of control is increased,and Structure,reduce energy losses,and greatly improve the ability to operate in construction machinery.And carried out a series of related studies such as theory,simulation and test.The main contents are:First of all,in response to the defects of the traditional inlet and oil port solid structure,design a new high and low-pressure dual valve core structure separately control the inlet and oil port to achieve independent control of the valve port.And highly integrated layout of the internal runner and sensor location of the valve body,and then the internal structure of the flow field simulation and strength verification verification of the internal structure.Secondly,based on the working principle of the independent dual valve core of the load port,the independent control system transmission function model of the load port is established to analyze the coupling characteristics in the pressure and speed composite control.Based on the relative gain matrix,the coupling factor that derives the degree of the degree of interference systems,provides a reliable theoretical basis for subsequent simulation and test research.Furthermore,based on the above theoretical derivation,establish a two valve core electric liquid valve AMESim and Simulink combined simulation model to use the level of displacement,flow,and pressure control strategies to simulation verification.The impact of working conditions on the control accuracy of the flow pressure control of the valve port.Finally,the simulation control strategy is used for test testing,testing the consistency of the simulation results of the main valve’s displacement,the response time of the whole valve,the accuracy of the flow pressure control,and the authentication The rationality and control strategy of the valve in the design of the valve.