Estimating the clutch transmitting torque during HEV mode-switch based on the Kalman filter  

作　　者：邬学斌 张欣 陈宏伟 杨猛 

机构地区：[1]School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University

出　　处：《Journal of Beijing Institute of Technology》2015年第4期449-457,共9页北京理工大学学报（英文版）

基　　金：Supported by the National High Technology Research and Development Program of China(863Program)(2012AA111104)

摘　　要：A power train dynamics model of a coaxial parallel hybrid electric vehicle （HEV） was built for different clutch operating states. With the state vector constituted by the motor rotation speed and the clutch transmitting torque at two successive time steps, a discrete state space model for estimating the clutch transmitting torque was built, and the Kalman filtering algorithm was used to estimate the clutch transmitting torque. The Matlab/Simulink was employed to simulate the clutch transmitting torque for two mode-switch processes. Estimation errors were analyzed through compa- ring the estimated and simulated values of the clutch torque. Impact of the noise covariance and the sample time on clutch torque estimation errors were explored. The results show that the developed estimation method can be used to estimate the clutch transmitting torque for HEV with good accura- cy. The results are useful for torque direct control of automatic diaphragm clutches.A power train dynamics model of a coaxial parallel hybrid electric vehicle （HEV） was built for different clutch operating states. With the state vector constituted by the motor rotation speed and the clutch transmitting torque at two successive time steps, a discrete state space model for estimating the clutch transmitting torque was built, and the Kalman filtering algorithm was used to estimate the clutch transmitting torque. The Matlab/Simulink was employed to simulate the clutch transmitting torque for two mode-switch processes. Estimation errors were analyzed through compa- ring the estimated and simulated values of the clutch torque. Impact of the noise covariance and the sample time on clutch torque estimation errors were explored. The results show that the developed estimation method can be used to estimate the clutch transmitting torque for HEV with good accura- cy. The results are useful for torque direct control of automatic diaphragm clutches.

关 键 词：hybrid electric vehicle mode switch automatic clutch Kalman filter torque estima-tion 

分 类 号：U469.7[机械工程—车辆工程] U463.211[交通运输工程—载运工具运用工程]