机械科学与技术2017，Vol.36Issue(4)：527-534,8.DOI:10.13433/j.cnki.1003-8728.2017.0406
液压机械无级变速器换挡控制策略研究
A Shifting Control Strategy for Hydro-mechanical Continuously Variable Transmission
摘要
Abstract
We build the shifting simulation model of a hydro-mechanical continuously variable transmission (HMCVT).The speed drop amplitude,dynamic load coefficient,maximum degree of shock of output shaft and shifting time are regarded as the shifting quality evaluation indices to establish the engine speed,load torque,pressure of main circuit and flow of speed control valves as factors of influence.An L9(34) orthogonal table is used to determine the primary-secondary and optimal-worst levels of influence factors and to predict the optimum scheme.The simulation datas are calculated by using a statistical method in order to verify the reliability of the simulation results,which show that the shifting quality is improved by the lower engine speed,smaller load torque,lower pressure of main circuit,and the larger flow of speed control valves.关键词
液压机械无级变速器/换挡品质/控制/统计学方法Key words
hydro-mechanical continuously variable transmission/shifting quality/control/statistical method分类
交通工程引用本文复制引用
朱镇,高翔,潘道远,曹磊磊,韩顺,朱彧..液压机械无级变速器换挡控制策略研究[J].机械科学与技术,2017,36(4):527-534,8.基金项目
国家自然科学基金项目(51575001)、江苏省研究生培养创新工程项目(CXZZ11-0578)及中国博士后基金会项目(188362)资助 （51575001）
