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<p>In this paper, the development of a novel infrared (IR) sensor-based rotor position sensor module designed for in-wheel switched reluctance motors (IW-SRMs) used in electric two-wheeler (E-2&#xa0;W) applications is presented. The proposed sensor module utilizes four optical reflective IR sensors spaced 45 degrees apart to detect the rotor pole’s angular position, eliminating the need for a separate target plate or slotted disc. The IR sensor module, integrated with a microcontroller, facilitates accurate phase excitation sequences essential for efficient motor control. This design enhances cost-effectiveness, reduces space requirements, and ensures reliable position feedback despite the magnetic fields present in the SRM core. The functionality of the developed sensor module and the dynamic performance of the SRM drive system are validated through experimental tests on an 8/18 IW-Multi-teeth (MT) SRM prototype. Additionally, cost analysis of the developed sensor module revealed a significant reduction in the overall cost compared to traditional Hall Effect sensor setups and commercial encoders.</p>

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Development and Experimental Verification of a Novel IR-Sensor Module for Rotor Position Sensing in an In-wheel SRM

  • 期刊论文

  • 发表日期：

    2025年8月22日

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  • Satyam Sarma,
  • B. Sandesh Bhaktha,
  • J. Arunlal,
  • Veershetty Gumtapure,
  • K. V. Gangadharan

摘要

In this paper, the development of a novel infrared (IR) sensor-based rotor position sensor module designed for in-wheel switched reluctance motors (IW-SRMs) used in electric two-wheeler (E-2 W) applications is presented. The proposed sensor module utilizes four optical reflective IR sensors spaced 45 degrees apart to detect the rotor pole’s angular position, eliminating the need for a separate target plate or slotted disc. The IR sensor module, integrated with a microcontroller, facilitates accurate phase excitation sequences essential for efficient motor control. This design enhances cost-effectiveness, reduces space requirements, and ensures reliable position feedback despite the magnetic fields present in the SRM core. The functionality of the developed sensor module and the dynamic performance of the SRM drive system are validated through experimental tests on an 8/18 IW-Multi-teeth (MT) SRM prototype. Additionally, cost analysis of the developed sensor module revealed a significant reduction in the overall cost compared to traditional Hall Effect sensor setups and commercial encoders.