干式离合器摩擦转矩两种估计模型的对比  

Comparison Between Two Estimation Models for the Friction Torque of Dry Clutch

作　　者：林晓华[1] 席军强[1] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081

出　　处：《汽车工程》2017年第3期317-322,共6页Automotive Engineering

基　　金：国家自然科学基金(51275038)资助

摘　　要：根据常规量产车上可以获得的信号——发动机转速、名义发动机转矩和名义离合器压紧力,在不额外增加传感器的条件下,对干式离合器的摩擦转矩进行了估计。建立了基于梯度投影法的估计模型和自适应估计模型,通过仿真和台架试验分析了两种估计模型的性能,结果表明,自适应估计模型对离合器摩擦转矩的估计精度较高。The friction torque of dry clutch is estimated under a condition without extra added sensors based on easily acquired signals of conventional mass-production vehicles, i. e. the rotational speed and nominal torque of engine and the nominal pressing force of clutch. Both gradient projection algorithm-based and adaptive estimation models are established,whose performances are then analyzed by simulation and bench test. The results show that a-daptive estimation model exhibits higher accuracy in estimating the friction torque of clutch.

关 键 词：离合器 摩擦转矩 自适应估计 梯度投影法 

分 类 号：U463.211[机械工程—车辆工程]