基于改进粒子群算法优化的凸轮驱动电液制动器控制研究  

Research on Control of Cam Driven Electro-hydraulic Brake Based on Improved Particle Swarm Optimization

作　　者：魏荣[1] 刘茹敏[1] 张洪强[2] 张鹏程 WEI Rong;LIU Rumin;ZHANG Hongqiang;ZHANG Pengcheng(Department of Electrical Engineering,Cangzhou Technical College,Cangzhou Hebei 061001,China;Office of Academic Affairs,Cangzhou Technical College,Cangzhou Hebei 061001,China;College of Electrical Engineering,Hebei Institute of Water Resources and Electric Power,Cangzhou Hebei 061001,China)

机构地区：[1]沧州职业技术学院电气工程系,河北沧州061001 [2]沧州职业技术学院教务处,河北沧州061001 [3]河北水利电力学院电气工程学院,河北沧州061001

出　　处：《机床与液压》2021年第13期80-84,共5页Machine Tool & Hydraulics

摘　　要：为解决车辆制动反应时间较长的问题,设计一种凸轮驱动电液制动器控制系统,并对制动响应时间进行仿真验证。介绍凸轮电液制动系统的总体结构,建立系统的动力学模型。定义凸轮机构的设计变量和约束条件,构造其优化目标函数。引用粒子群算法并进行改进,利用改进粒子群算法对目标函数进行优化,并给出凸轮机构优化流程图。在不同制动压力下,利用MATLAB软件对优化后的凸轮驱动电液制动器的制动反应时间进行仿真,并且与优化前进行对比。结果显示:随着制动压力的增大,优化前凸轮驱动电液制动器的制动反应时间较长,优化后反应时间较短。采用所设计的凸轮驱动电液制动器控制系统,能够缩短车辆制动时间,有利于安全驾驶。In order to solve the problem of long response time of vehicle braking,a cam driven electro-hydraulic brake control system was designed,and the braking response time was simulated and verified.The overall structure of the cam electro-hydraulic braking system was introduced,and the dynamic model of the system was established.The design variables and constraints for the cam mechanism were defined,and the optimization objective function was constructed.The particle swarm algorithm was optimized to improve the objective function,and the optimization flow chart for the cam mechanism was given.Under different braking pressures,MATLAB software was used to simulate the braking response time of the optimized cam driven electro-hydraulic brake,and the simulation results were compared with those before optimization.The results show that before optimization,with the increase of braking pressure,the response time of the cam driven electro-hydraulic brake is longer,while after optimization,the response time is shorter.By using the designed cam to drive the electro-hydraulic brake control system,the vehicle braking time can be shortened,which is conducive to safe driving.

关 键 词：改进粒子群算法 凸轮 电液制动器 优化 仿真 

分 类 号：TH137[机械工程—机械制造及自动化]