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Summary & Details

Prediction of Aerodynamic Noise from Cooling Fans in Automotive ECUs using Acoustic Analogy

分離解法を用いた車載ECUの冷却ファンに起因する空力騒音の予測

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Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20265042

Paper/Info type: Proceedings (Spring)

No.9-26

Pages: 1-6(Total 6 p)

Date of publication: May 2026

Publisher: JSAE

Language: Japanese

Event: 2026 JSAE Annual Congress (Spring)

Detailed Information

Author(J)	1) 小西祐一郎, 2) 添田陽介, 3) 横田正憲
Author(E)	1) Yuichiro Konishi, 2) Yosuke Soeda, 3) Masanori Yokota
Affiliation(J)	1) パナソニックオートモーティブシステムズ, 2) パナソニックオートモーティブシステムズ, 3) パナソニックオートモーティブシステムズ
Affiliation(E)	1) Panasonic Automotive Systems, 2) Panasonic Automotive Systems, 3) Panasonic Automotive Systems
Abstract(J)	車載インフォテインメントのECU開発において，自動車の知能化と電動化に伴う熱と騒音の課題に対応した空冷構造が求められている．本検討では，冷却ファン起因の空力騒音対策の効率化のために，分離解法を用いたCFDによる騒音予測を試みた．ファン使用例別の騒音測定値との比較を通じて解析方法の有効性を検証した． Translation
Abstract(E)	In the development of in-vehicle infotainment Electronic Control Units (ECUs), air-cooling solutions are required to address thermal and acoustic challenges due to increasing vehicle intelligence and electrification. To improve noise control strategies, this study introduces Computational Fluid Dynamics (CFD) combined with an acoustic analogy approach to predict aerodynamic noise generated by ECU cooling fans. The effectiveness of the proposed method is verified by comparing simulation results with experimental noise measurements for different fan usage cases.

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