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http://dx.doi.org/10.7467/KSAE.2012.20.3.119

Noise Source Identification of Electric Parking Brake by Using Noise Contribution Analysis and Identifying Resonance of Vehicle System  

Park, Goon-Dong (Department of Mechanical Engineering, Hanyang University)
Seo, Bum-June (Department of Mechanical Engineering, Hanyang University)
Yang, In-Hyung (Department of Mechanical Engineering, Hanyang University)
Jeong, Jae-Eun (Department of Mechanical Engineering, Hanyang University)
Oh, Jae-Eung (School of Mechanical Engineering, Hanyang University)
Lee, Jung-Youn (Department of Mechanical System Design Engineering, Kyonggi University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.20, no.3, 2012 , pp. 119-125 More about this Journal
Abstract
Caliper intergrated Electric Parking Brake (EPB) is an automatic parking brake system, attached to rear caliper. Because EPB uses luxury vehicles recently, the drivers of vehicles are sensitive to the EPB noise. EPB is operated by the motor and gear, so noise is generated by motor and gear. In order to reduce noise, One of EPB manufacturers uses helical gear and changes the shape of EPB housing. But these methods are not optimized for reduction of interior noise. There are many noise transfer paths into vehicle interior and it is difficult to identify the noise sources. Therefore, in this study, we performed contribution analysis and modal testing in the vehicle system. It is possible to distinguish between air-borne noise and structure-borne noise in the vehicle interior noise by comparing interior noise peak with resonance mode map.
Keywords
Electric parking brake; Transfer path analysis; Multi-dimensional spectral analysis; Contribution analysis;
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Times Cited By KSCI : 1  (Citation Analysis)
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