**7. Conclusions**

This paper presents an improved DITC of SRM drives for EVs. The main concern is to satisfy the vehicle requirements including MTPA, minimum torque ripple, wide speed range, and high efficiency. First, the turn-on angle was estimated analytically to provide the MTPA conditions. Second, an optimization-based method was used to estimate the optimum turn-off angles that provide the lowest torque ripple, the lowest copper losses, and the highest efficiency. In addition, the proposed DITC compensates for the torque error to provide a lower torque ripple with extended speed operation. A torque-to-current conversion was conducted using the FEM-calculated torque data. Moreover, the IITC and the ATC techniques were implemented and compared to the proposed DITC. The results show the superior performance of the proposed DITC. As noted, the DITC can provide the lowest torque ripple, the highest torque to current ratio, and the best efficiency over the low and medium speed ranges. Moreover, the comparison presents a very good perspective to develop a universal control technique of SRM drives for EVs. This paper recommends a universal control that uses the proposed DITC over the low speeds and utilizes the ATC for the high speeds.

**Author Contributions:** Conceptualization, M.H.; Formal analysis, M.H.; Investigation, M.H. and M.N.I.; Methodology, M.H.; Project administration, L.S.; Software, M.H., A.A.M., H.R., and M.N.I.; Validation, M.H.; Visualization, H.R. and M.N.I.; Writing—original draft, M.H.; Writing—review and editing, A.A.M., H.R., M.N.I., and L.S. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Conflicts of Interest:** The authors declare no conflict of interest.
