한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

하이브리드 자동차용 계전기 모듈의 소음저감에 관한 실험적 연구

An Experimental Study on the Noise Reduction Method of HEV-relay Module

  • 서재용 (계명대학교 대학원 기계공학과) ;
  • 김원진 (계명대학교 기계자동차공학과)
  • Seo, Jae-Yong (Department of mechanical Engineering, Keimyung Univ.) ;
  • Kim, Won-Jin (Department of mechanical & Automotive Engineering, Keimyung Univ.)
  • 투고 : 2010.05.03
  • 심사 : 2010.08.10
  • 발행 : 2010.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, the noise of HEV(hybrid electric vehicle)-relay module during the turn-on and turnoff switching is experimentally analyzed and an effective method is proposed to reduce the impact noise. First, enclosure methods of 100A relay part with urethane and silicon are tested to find out a better material to isolate the noise. This result shows that the urethane is a better for the noise isolation of relay, so the relays enclosed by urethane are installed in the relay module. Second, the noise of HEV-relay module is analyzed experimentally to identify the noise generation mechanism. From this result, it is found that the vibration transmitted to battery pack through bolt generates the structural borne noise with the frequency band of 200~2000 Hz, which is more serious when the switch is turned off. Finally, the direction of switching and the joint structure are modified in order to isolate the vibration transmitted to battery back. Both methods are very effective to reduce the switching noise.

키워드

참고문헌

  1. Cho, H. K., Park, H. T. and Oh, I. S., "High Voltage DC Relay for Hybrid Electric Vehicle," Workshop of Korean Automotive Technology Institute, 2007.
  2. Lim, J. H., Song, H., Huh, H., Park, W. J. and Oh, I. S., "Parameter study of impact characteristics for a vacuum interrupter considering dynamic material properties," Transaction of Korea Society Mechanical Engineers, Vol. 26, No. 5, pp. 924-931, 2002. https://doi.org/10.3795/KSME-A.2002.26.5.924
  3. Ko, Y. K., Cho, S. S., Huh, H., Lee, S. Y., Park, H. T. and Oh, I. S., "Design of HEV-Relay to Improve Impact and Bounce Characteristics," Proceeding of Autumn Conference of Korea Society of Mechanical Engineers, pp. 491-496, 2008.
  4. Lee, G. H., Kim, Y. B., Park, H. T. and Son, J. W., "Study on the Noise Reduction of the High Voltage DC Relay," Proceedings of Autumn Conference of Korea Society for Noise and Vibration Engineering, pp. 788-792, 2007.
  5. Kim, K. H. and Kim, Y. H., "Modeling impact force and transfer function for reducing relay impact noise," Proceedings of Autumn Conference of Korea Society for Noise and Vibration Engineering, pp. 646-649, 2008.
  6. Lee, C. M. and Lee, J., "Vibration and Radiated Noise Analysis of Plate Covered with Damping Material," Transaction of Korea Society for Noise and Vibration Engineering, Vol. 12, No. 5, pp. 317-322, 2002. https://doi.org/10.5050/KSNVN.2002.12.5.317