液力变矩器的流量和扭矩的实时监测  

Real-time Monitoring Flow and Torque of Torque Converter Clutch

作　　者：刘振杰[1] 衣超[1] 徐飞[1] 李翠芬[1] 李志伟[1] 

机构地区：[1]中国北方车辆研究所,北京100072

出　　处：《车辆与动力技术》2016年第3期8-12,共5页Vehicle & Power Technology

摘　　要：车辆起步和换挡过程中液力变矩器涡轮扭矩变化对其舒适性有较大影响.为了在控制模型中精确地计算液力变矩器涡轮的扭矩,以搭载W305型液力变矩器的某轻型越野车为例,根据液力变矩器动态特性方程,搭建了液力变矩器仿真模型,并将液力变矩器的外特性仿真曲线与试验获取的外特性曲线进行了对比,误差小于3%,表明建立的液力变矩器的仿真模型满足滑模观测器的要求.采集试验车发动机转速(即泵轮转速)和输入轴转速(即涡轮转速),建立滑模观测器,观测涡轮扭矩和液力变矩器流量.结果表明,使用滑模观测器能准确地计算液力变矩器涡轮扭矩和流量.该滑模观测器已应用于车辆起步和换挡过程中液力变矩器的控制.Vehicles riding comfort was affected by turbine torque changes of Torque Converler Clutch in the process of starting and shifting conditions. Taking an off-road vehicle that installed the W305 Torque Converter as an example, in order to calculate the turbine torque precisely, a Torque Converter Simulink model was established. Simulation results and experimental results were compared, and the error was within 3%. Pump speed（ equal to engine speed） and turbine speed were obtained in real time through the establishment of a sliding mode observer, Converter were monitored. The results showed were calculated accurately by using the sliding and the turbine torque as well as the flow of Torque that the turbine torque and the tlow of Torque Converter mode observer.

关 键 词：液力变矩器 涡轮扭矩 滑模观测器 

分 类 号：U463.221[机械工程—车辆工程]