一种用于湿式摩擦离合器的液压控制系统的设计  

Design of a Hydraulic Control System for Wet Friction Clutch

作　　者：姚俊[1] YAO Jun(Institute of Electronics and Information,Nanchang University of Technology,Nanchang Jiangxi 330044,China)

机构地区：[1]南昌理工学院电子与信息学院,江西南昌330044

出　　处：《机床与液压》2020年第20期110-113,共4页Machine Tool & Hydraulics

基　　金：江西省科学技术厅项目(2018BBG78050);江西省科学技术厅重点研发计划一般项目(20202BBGL73056);江西省教育科学规划研究项目(20YB220)。

摘　　要：为了保证湿式摩擦离合器工作时所需压力信号的准确性和平稳性,设计一种用于湿式摩擦离合器的液压控制系统。对湿式摩擦离合器的模型进行分析,获取湿式摩擦离合器的传递扭矩;利用液压泵、系统压力阀以及液压比例减压阀等设计了液压控制系统;分析该液压控制系统的工作过程,求取了离合器压力阀所产生压力的常微分方程,在此基础上计算了离合器所需压力的微分方程,并在MATLAB/Simulink环境下进行了仿真实验。仿真结果显示:所设计的液压控制系统对线轴位移信号及压力信号的控制准确性及平稳性都较好,所控制的线轴位移信号较标定线轴位移信号的偏差不超过6.667%,所控制的压力信号较标定压力信号的偏差不超过9.524%。说明所设计的液压控制系统能够为湿式摩擦离合器提供准确且稳定的工作压力信号。In order to ensure the accuracy and stability of the pressure signal required by the wet friction clutch,a hydraulic control system for the wet friction clutch was designed.The transfer torque of the wet friction clutch was obtained by analyzing the model of the wet friction clutch.The hydraulic control system was designed by using hydraulic pump,system pressure valve and hydraulic proportional pressure reducing valve.The working process of the hydraulic control system was analyzed,and the ordinary differential equation of the pressure produced by the clutch pressure valve was obtained.On this basis,the differential equation of the pressure required by the clutch was calculated.The simulation experiments were carried out under MATLAB/Simulink environment.The simulation results show that the designed hydraulic control system has a good control accuracy and stability for the line-axis displacement signal and pressure signal.The deviation of the line-axis displacement signal controlled by the hydraulic control system is less than 6.667%than that of the calibrated line-axis displacement signal,and the deviation of the pressure signal controlled by the hydraulic control system is less than 9.524%than that of the calibrated line-axis displacement signal.It shows that the designed hydraulic control system can provide accurate and stable working pressure signals for wet friction clutch.

关 键 词：湿式摩擦离合器 液压控制系统 控制准确性 平稳性 

分 类 号：U463[机械工程—车辆工程]