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

Volume

2

fYear

2012

fDate

18-20 May 2012

Firstpage

1056

Lastpage

1061

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Measurement, Information and Control (MIC), 2012 International Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4577-1601-0

Type

conf

DOI

10.1109/MIC.2012.6273482

Filename

6273482