An electric differential system for a two-wheel mobile plat-form using direct torque control with adaptive flux and speed observers

Author

Tabbache, B. ; Kheloui, A. ; Hanini, N.

Author_Institution

U.E.R Electrotech., Algiers

fYear

2008

fDate

11-13 June 2008

Firstpage

550

Lastpage

556

Abstract

The aim of this paper is to presents a traction system algorithm for electric vehicle (EV) with two separate wheel drives. This algorithm is necessary to improve the handling stability of EV during cornering or under slippery road condition. This algorithm considered, first the elimination of the conventional mechanic differential used in the internal combustion engine vehicles (ICEVs), second the elimination of mechanicals sensors for the dual-induction motors controlled. Hence, this work consists to implement the direct torque control (DTC) using an adaptive observer to estimate speed and flux of the two induction motors. For every situation of electrical vehicle (straight-line, turning way...etc), an electrical differential allows giving two speed references for the two motors, and also implemented. In order that, we need two induction motors, two inverters PWM, and DSP board TMS320LF2407 for treatment. Therefore, performances of the control, experimental results will be illustrated.

Keywords

electric vehicles; induction motor drives; internal combustion engines; machine control; observers; torque control; traction motor drives; adaptive flux; adaptive observer; direct torque control; electric differential system; electric vehicle; handling stability; induction motors; internal combustion engine vehicles; slippery road condition; speed observers; traction system algorithm; two-wheel mobile plat-form; Adaptive control; Electric vehicles; Induction motors; Programmable control; Pulse width modulation inverters; Roads; Stability; Torque control; Traction motors; Wheels; Adaptive Observer; Direct Torque Control (DTC); Electric Differential (ED); Electric vehicle (EV);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion, 2008. SPEEDAM 2008. International Symposium on

Conference_Location

Ischia

Print_ISBN

978-1-4244-1663-9

Electronic_ISBN

978-1-4244-1664-6

Type

conf

DOI

10.1109/SPEEDHAM.2008.4581327

Filename

4581327