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Thermal Performance of Motor and Inverter in an Integrated Starter Generator System for a Hybrid Electric Vehicle

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  • Sung Chul Kim

    (Green Car Power System R&D Division, Korea Automotive Technology Institute, 74 Yongjung-Ri, Pungse-Myun, Dongnam-Gu, Chonan-Si, Chungnam 330-912, Korea)

Abstract

If the integrated starter generator (ISG) motor and inverter operate under continuously high loading conditions, the system’s performance and durability will decrease and the heat dissipation requirements will increase. Therefore, in this study, we developed two cooling designs for the ISG motor and inverter, and then carried out both a model analysis and an experiment on the fluid flow and thermal characteristics of the system under various operating conditions. As the outdoor temperature increased from 25 °C to 95 °C, the coil temperature of the air-cooled motor increased by about 82 °C. Under the harsh-air condition of 95 °C, the coil of the air-cooled motor increased to a maximum temperature of about 158.5 °C. We also determined that the temperature of the metal-oxide-semiconductor field-effect transistor (MOSFET) chip in the liquid-cooled inverter increased to a maximum temperature of about 96.8 °C under a coolant flow rate of 4 L/min and a coolant temperature of 65 °C. The observed thermal performance of the ISG motor and inverter using the proposed cooling structures was found to be sufficient for heat loads under various real driving conditions for a hybrid electric vehicle (HEV).

Suggested Citation

  • Sung Chul Kim, 2013. "Thermal Performance of Motor and Inverter in an Integrated Starter Generator System for a Hybrid Electric Vehicle," Energies, MDPI, vol. 6(11), pages 1-18, November.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:11:p:6102-6119:d:30664
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    References listed on IDEAS

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    1. Yang, Fuyuan & Gao, Guojing & Ouyang, Minggao & Chen, Lin & Yang, Yuping, 2013. "Research on a diesel HCCI engine assisted by an ISG motor," Applied Energy, Elsevier, vol. 101(C), pages 718-729.
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    Cited by:

    1. Dewei Tang & Hong Xiao & Fanrui Kong & Zongquan Deng & Shengyuan Jiang & Qiquan Quan, 2017. "Thermal Analysis of the Driving Component Based on the Thermal Network Method in a Lunar Drilling System and Experimental Verification," Energies, MDPI, vol. 10(3), pages 1-17, March.
    2. Colmenar-Santos, Antonio & Molina-Ibáñez, Enrique-Luis & Rosales-Asensio, Enrique & López-Rey, África, 2018. "Technical approach for the inclusion of superconducting magnetic energy storage in a smart city," Energy, Elsevier, vol. 158(C), pages 1080-1091.
    3. Moo-Yeon Lee & Dong Hyun Lim & Sung Chul Kim, 2015. "Evaluation of the Effect of Operating Parameters on Thermal Performance of an Integrated Starter Generator in Hybrid Electric Vehicles," Energies, MDPI, vol. 8(8), pages 1-19, August.
    4. Jing Zhao & Wei Liu & Bin Li & Xiangdong Liu & Congzhe Gao & Zhongxin Gu, 2015. "Investigation of Electromagnetic, Thermal and Mechanical Characteristics of a Five-Phase Dual-Rotor Permanent-Magnet Synchronous Motor," Energies, MDPI, vol. 8(9), pages 1-31, September.

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