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This is a In Vitro Study study.

Torque Capability Enhancement of Interior Permanent Magnet Motors Using Filleting and Notching Stator

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Torque enhancement techniques significantly improved motor performance in electric vehicle applications, indicating efficiency gains.

The proposed motor design achieves an average torque increase of 2.45%, and decreases torque ripple by 47.73% compared to traditional motors.
The enhancement techniques of filleting and notching allow for better control of torque production without altering the rotor structure.
Analysis was performed using 2D finite element simulations across no-load and loaded conditions for accurate results.
The findings indicate a motor efficiency of 93.8%, highlighting the potential for improved performance in electric vehicles.

Chamchuen et al. (2025) studied this question.

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