基于机电液耦合器的液压冷却系统设计

Design of Hydraulic Cooling System Based on Electromechanical Hydraulic Coupler

针对机电液耦合器存在的散热问题,本文以机电液耦合器冷却系统为研究对象,提出一种新的液压冷却方案。首先设计了与启动、行驶、上坡、高速、制动和驻车等工况相匹配的液压冷却回路,阐述了各液压元件的型号选择和参数计算过程,并使用AMESim软件对系统冷却能力进行了仿真验证。冷却系统通过高压蓄能器与低压蓄能器的配合使用,使冷却系统在不同工况下,满足机电液耦合器冷却需求的基础上,实现车辆的高效低耗运行。研究结果表明,该液压冷却系统在车辆不同工作状况下,均能够满足系统的冷却需求,有效的实现了制动能的回收和利用,提高了耦合器的能量利用效率,方案设计及元件选型合理。该设计为后续机电液耦合器的开发和研究及相关冷却系统的设计提供了一定的参考。

In order to solve the heat dissipation problems of electromechanical hydraulic couplers,a new hydraulic cooling scheme is proposed based on the cooling system of electromechanical hydraulic couplers.Firstly,the hydraulic cooling loop matching start-up,driving,uphill,high speed,braking and parking conditions is designed.The model selection and parameter calculation process of each hydraulic element are described.AMESim software is used to simulate and verify the cooling capacity of the system.Through the combination of high pressure accumulator and low pressure accumulator,the cooling system can meet the cooling requirements of electromechanical hydraulic couplers in different working conditions and realize efficient and low-consumption operation of vehicles in various working conditions.The results show that the hydraulic cooling system can meet the cooling requirements of the system under different working conditions of the vehicle,effectively realize the recovery and utilization of braking energy,improve the energy utilization efficiency of the coupler,and the scheme design and component selection are reasonable.This design provides a reference for the subsequent development and research of electromechanical hydraulic couplers and the design of relevant cooling systems.