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.
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