Sensorless Torque Control of an Electric Vehicle Driven by an Open End Winding Induction Motor: An Experimental Study

This research project deals with designing, simulating, and experimentally testing a sensorless torque‑control method for electric vehicles that use an open‑end winding induction motor (OEWIM). To improve reliability and cut manufacturing cost, the control scheme removes physical speed and torque sensors and instead uses a state observer. A Luenberger observer is built from the full mathematical model of the dual‑inverter‑fed OEWIM. The observer works in two parts: it reconstructs rotor fluxes from the motor’s electrical equations, and it estimates electromagnetic torque from the mechanical dynamics. The dual‑inverter layout provides higher voltage capability and better fault tolerance, which is useful for EVs. The project gives step‑by‑step guidance on modeling the OEWIM,

designing the Luenberger observer gain matrix for stability, and implementing the control loops in MATLAB/Simulink. It also describes how to validate the system on a low‑power lab prototype and evaluates the dynamic performance, estimation accuracy, and robustness of the sensorless drive under different load‑torque and speed conditions.

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