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Design Methodology for Motor Thermal Management in Vehicle Electrification
ISSN: 0148-7191, e-ISSN: 2688-3627
Published December 19, 2019 by SAE International in United States
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In order to improve the accuracy of the coil temperature prediction, detailed fundamental experiments have been conducted on thermal resistances that are caused by the void air gap and contact surfaces. The thermal resistance of the coil around the air gap can be calculated by an air gap distance and air heat conductivity. Contact surface thermal resistance between the core and the housing was constant regardless of the press-fitting state in this experiment. Prediction accuracy of the coil temperature is improved by including the heat resistance characteristics that is obtained by the basic experiment to conjugate heat transfer analysis model.
CitationTsuruoka, Y., Kubo, M., Yamamuro, T., and Sakao, K., "Design Methodology for Motor Thermal Management in Vehicle Electrification," SAE Technical Paper 2019-01-2368, 2019.
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