电驱动AMT离合器起步模糊控制仿真与试验  

Simulation and Test on Starting Fuzzy Control of Electric AMT Clutch

作　　者：周云山[1] 孔祥宇[1] 张飞铁[1] 

机构地区：[1]湖南大学汽车电子与控制技术教育部工程研究中心,湖南长沙410082

出　　处：《计算机仿真》2016年第12期173-179,共7页Computer Simulation

基　　金：国家自然科学基金资助项目(51475151)

摘　　要：通过分析和研究电控机械式自动变速器(AMT)车辆的离合器动态起步接合过程,明确了滑磨阶段为控制重点,建立了电动执行机构和离合器主体的系统动力学模型。为实现响应快、冲击小、滑磨损失小的起步控制目标,提出了主要基于驾驶员操纵意图的四参数两级闭环模糊控制策略。基于模糊控制策略和控制对象的数学模型,利用MATLAB/Simulink软件建立模糊控制器模型和离合器对象模型,分别对慢、中、快起步三种工况进行仿真。进行实车试验,试验结果与仿真结果基本一致,两级闭环模糊控制策略合理有效,能够满足各评价指标的要求。The dynamic engaging process of vehicle clutch with AMT during starting was studied, and the slipping stage was determined to be the key point of clutch control. The system dynamics model of motor actuator and clutch was built. According to the starting requirements of rapid response, such as less shock and friction loss, mostly based on the driver＇s intention, the closed - loop fuzzy controller with two layers and four parameters was designed. Based on the fuzzy control strategy and the mathematical model of objects, the control and object simulation models were built with MATLAB/Simulink software. The simulation contained slow, medium - speed, and quick starting condition. Vehicle tests were also implemented, and the result was similar to the simulation. The result indicates that the fuzzy control strategy is effective, and can meet the requirements of the evaluation indexes.

关 键 词：电控机械式自动变速器 离合器 起步 模糊控制 仿真 

分 类 号：U463.2[机械工程—车辆工程]