Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Noise Source Identification of Electric Parking Brake by Using Noise Contribution Analysis and Identifying Resonance of Vehicle System

차량 시스템의 소음 기여도분석 및 공진 규명을 통한 전자식 주차 브레이크 소음원 규명

  • 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)
  • 박군동 (한양대학교 기계공학과) ;
  • 서범준 (한양대학교 기계공학과) ;
  • 양인형 (한양대학교 기계공학과) ;
  • 정재은 (한양대학교 기계공학과) ;
  • 오재응 (한양대학교 기계공학부) ;
  • 이정윤 (경기대학교 기계시스템공학과)
  • Received : 2011.08.09
  • Accepted : 2011.11.15
  • Published : 2012.05.01
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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.

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References

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