重型装载机械的液压无级变速器自适应传动控制策略研究  

Adaptive Transmission Control Strategy of Hydraulic Continuously Variable Transmission for Heavy Duty Loading Machinery

作　　者：苏杰义[1] SU Jieyi(Provincial Key Laboratory of Industrial Robot Measurement and Control,Rapid Die Manufacturing,Minnan University of Science and Technology,Shishi Fujian 362700)

机构地区：[1]闽南理工学院工业机器人测控与模具快速制造福建省高校重点实验室,福建石狮362700

出　　处：《湖北理工学院学报》2024年第6期7-12,72,共7页Journal of Hubei Polytechnic University

基　　金：福建省教育厅中青年项目(项目编号:JAT200759);工业机器人测控与模具快速制造福建省高校重点实验室项目(项目编号:闽教科(2017)8号);纺织鞋服智能化福建省高校工程研究中心项目(项目编号:闽教科(2018)86号)。

摘　　要：液压无级变速器作为重型装载机械传动系统的核心部件,对提高装载机械的工作效率和性能具有关键作用。然而,由于工况的复杂性,单纯的液压无级变速器已然无法满足工作需求。因此,文章首先对机械液压无级变速器进行了分析,阐述了其速比测算方式。在此基础上,通过构建阻力估算模型提出了一种分工况速比自适应控制策略。实验结果表明,阻力估算模型的误差平均值为4.5%,MAE最低为3.17、MAPE最低为12.93%、RMSE最低为1.02。相较于传统策略,分工况策略能够加快机械液压无级变速器的运行速度、缩短装载机械的作业时间并节省燃油。其速比控制误差最低为3.3%,响应时间最短为5.7 s。As the core component of heavy-duty loading machinery transmission system,hydraulic CVT plays a key role in improving the working efficiency and performance of loading machinery.However,the simple hydraulic CVT can no longer meet the working requirements due to the complexity of working conditions.Therefore,the study firstly analyzes the mechanical-hydraulic CVT and elaborates its speed ratio measurement.On this basis,a split-condition speed ratio adaptive control strategy is proposed by the constructed resistance estimation model.The experimental results show that the resistance estimation model has an error mean of 4.5%,with a minimum MAE of 3.17,a minimum MAPE of 12.93%,and a minimum RMSE of 1.02.And compared with the traditional strategy,the split-condition strategy can increase the fast operating speed of the mechanical-hydraulic CVT,shorten the operating time of the loader and save fuel.The lowest speed ratio control error is 3.3%and the shortest response time is 5.7 s.

关 键 词：重型装载机械 机械液压无级变速器 自适应 速比控制 分工况 

分 类 号：TH132[机械工程—机械制造及自动化]