Title :
Electric Differential system based on dual-closed-loop slip rate control
Author :
Liang, Bin ; Cui, Shumei ; Yu, Yifan
Author_Institution :
Inst. of Electromagn. & Electron. Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
In this paper, one 7-Degree-Of-Freedom (DOF) dynamic model of four-wheel drive electric vehicle is proposed and its effectiveness in reflecting dynamic features of an electric vehicle is verified by Matlab/Simulink. A novel Electric Differential (ED) system with both speed and torque loops is then presented, after extensive review and analysis of the currently available solutions. Both theoretical analysis and computer simulations demonstrate that in the presented electric differential system, slip rates are controlled in an optimal extent and the possibility of hazardous situation brought by speed difference being out of control of is greatly reduced.
Keywords :
closed loop systems; electric vehicles; motor drives; torque; torque control; velocity control; wheels; 7-DOF dynamic model; ED system; Matlab/Simulink; computer simulations; dual-closed loop slip rate control; dynamic features; electric differential system; four-wheel drive electric vehicle; seven-degree-of-freedom dynamic model; speed difference; speed loops; theoretical analysis; torque loops; Computers; MATLAB; Vehicles; electric differential; electric vehicle; in-wheel motor drive;
Conference_Titel :
Measurement, Information and Control (MIC), 2012 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-1601-0
DOI :
10.1109/MIC.2012.6273482
