Holistic Rotor Position Sensor System Characterization for Automotive Powertrains

Christoph Datlinger, Mario Hirz, Alecksey Anuchin

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Electrified automotive traction drives require precise, reliable and efficient control in order to meet operational safety-, comfort-and efficiency demands. In this context, sensor systems are utilized to determine the current rotor shaft position of Permanent Magnet Synchronous Motors, whereby potential measurement deviations may have impact on the quality of motor control. Since the integration involves functional-, reliability-and space requirements, various measurement principles and sensor system technologies are available (e.g. resolver, inductive or Hall-based). Identification of potential error sources in the holistic sensor measurement chain is vital to provide an accurate determination of the rotor shaft position under real-time conditions. In this context, the present paper introduces a generic procedure for holistic angular error characterization of rotor position sensor systems in Permanent Magnet Synchronous Motor-based powertrains. The presented approach includes an examination of state-of-the-art rotor position sensor systems and their potential arising errors, which can lead to a distortion of the angular information. Besides a consideration of mechanical deviations and thermal influences, special focus is put on sensor signal processing to elaborate origins of potential errors in a high level of details. The introduced methodology is exemplary applied in the course of experimental-based error characterization for an arbitrary rotor position sensor system.

Original languageEnglish
Title of host publication2021 28th International Workshop on Electric Drives
Subtitle of host publicationImproving Reliability of Electric Drives, IWED 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)9780738144436
Publication statusPublished - 27 Jan 2021
Event28th International Workshop on Electric Drives: Improving Reliability of Electric Drives: IWED 2021 - Virtuell, Russian Federation
Duration: 27 Jan 202129 Jan 2021


Conference28th International Workshop on Electric Drives: Improving Reliability of Electric Drives
Abbreviated titleIWED 2021
Country/TerritoryRussian Federation


  • Automotive applications
  • Digital signal processing
  • Error analysis
  • Position measurement
  • Sensor systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality
  • Control and Optimization

Fields of Expertise

  • Mobility & Production


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