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육지용(Jiyong Yook),차용길(Yongkil Cha),양현섭(Hyunsub Yang),조경석(Kyungsuk Cho),백찬호(Chanho Beak),김광일(Kwangil Kim) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Hybrid and electric vehicles adopt electric motor driven system using rechargeable battery compared to conventional vehicles. These vehicles are eco- friendly les because of no fuel consumption. These chargeable vehicles using alternative power train driven by electric motor need high efficient thermal management system in battery system in high temperature status on going charging and discharging operation . To maintain proper temperature status in battery system, BCS(Battery Cooling System) is adopted. BCS is composed of BLDC motor, inverter, sirocco type wheel and BLWR. Unit and the operating noise of BCS located under the trunk makes NVH problem in vehicle. In this paper, FEA(Finite Element Analysis) and experiment are performed for analyzing NVH characteristics of BCS , verify the noise source of BCS and propose the noise reduced design for BCS NVH problem.
육지용(Jiyong Yook),차용길(Yongkil Cha),양현섭(Hyunsub Yang),조경석(Kyungsuk Cho),백찬호(Chanho Beak),김광일(Kwangil Kim) 한국자동차공학회 2012 한국자동차공학회 지부 학술대회 논문집 Vol.2012 No.10
Hybrid and electric vehicles adopt electric motor driven system using rechargeable battery compared to conventional vehicles. These vehicles are eco- friendly les because of no fuel consumption. These chargeable vehicles using alternative power train driven by electric motor need high efficient thermal management system in battery system in high temperature status on going charging and discharging operation . To maintain proper temperature status in battery system, BCS(Battery Cooling System) is adopted. BCS is composed of BLDC motor, inverter, sirocco type wheel and BLWR. Unit and the operating noise of BCS located under the trunk makes NVH problem in vehicle. In this paper, FEA(Finite Element Analysis) and experiment are performed for analyzing NVH characteristics of BCS , verify the noise source of BCS and propose the noise reduced design for BCS NVH problem.
HILS Rig 시험을 통한 실차 ABS 실내작동소음 예측 기법에 대한 연구
김승환(Seunghwan Kim),육지용(Jiyong Yook),한민규(Mingyu Han),전남일(Namill Jeon) 한국소음진동공학회 2013 한국소음진동공학회 학술대회논문집 Vol.2013 No.10
The psychoacoustic quality of ABS is now considered more important than before as the focus of recent ABS function is expanded to basic function from typical emergency function. Thus, the automotive parts manufacturing companies are actively working to improve NVH (Noise, Vibration, and Harshness) in ABS module. In terms of time, test place, and cost, however, it is very inefficient to have all the operating noise validation test in real vehicle configuration especially for partially improved ABS module. To contribute to reducing the development period and to grasping the improvements faster, this research presents the study of a correlation to predict ABS operating noise inside vehicle via HILS rig test. The regression equation in this paper was statistically drawn from using Minitab S/W, and based on that equation, the noise spectrum of vehicle interior was analogized.