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Control Strategy of Dual-Winding Motor for Vehicle Electro-Hydraulic Braking Systems

Author

Listed:
  • Taeho Jo

    (Department of Electrical Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
    SW2 Lab, Software Campus, Mando Corp, 21, Pangyo-ro 255beon-gil, Bundang-gu, Seongnam-si 13486, Korea)

  • Kyoungjin Joo

    (SW2 Lab, Software Campus, Mando Corp, 21, Pangyo-ro 255beon-gil, Bundang-gu, Seongnam-si 13486, Korea)

  • Ju Lee

    (Department of Electrical Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea)

Abstract

The electro-hydraulic brake (EHB) system of a vehicle should operate normally under all circumstances to ensure automotive safety. This redundant system guarantees the minimum required performance in the event of a critical failure of the brake system. In this study, we propose a redundant motor control strategy for the EHB to fully realize a functional safety design. The EHB system is composed of two identical electronic control units (ECUs), a dual three-phase dual-winding permanent magnet synchronous motor (DW-PMSM), and hydraulic components to generate brake pressure through the movement of an actuator. First, we propose a method to acquire the necessary motor current for generating brake pressure. Second, we present an initial driving method for the DW-PMSM for achieving stability before generating the braking pressure that involves setting the actuator’s origin position without a position sensor. Lastly, we describe a redundant motor control strategy for continuous brake operation depending on whether each ECU experiences system failure. The experimental results showed the effectiveness and feasibility of the control strategy of the dual-winding motor for a functional safety design.

Suggested Citation

  • Taeho Jo & Kyoungjin Joo & Ju Lee, 2022. "Control Strategy of Dual-Winding Motor for Vehicle Electro-Hydraulic Braking Systems," Energies, MDPI, vol. 15(14), pages 1-19, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5090-:d:861167
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