Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2013.10a
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- Pages.525-530
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- 2013
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- 1598-2548(pISSN)
The Development and Application of Sound Quality Index for the Improving Sound Quality to Road Vehicle Power Window System
차량 윈도우 리프트 음질 향상을 위한 음질 지수 제작 및 개선에의 응용
- Published : 2013.10.27
Abstract
With the increasing the importance of emotional quality of vehicle, the sound quality of systems with electric motor components has become increasingly important. Electric motors are used for windows, seats, sun roof, mirrors, steering columns, windshield wiper, climate control blowers, etc. In this paper, a study was conducted to identify sound quality factors that contribute to customer's satisfaction and preference of the window lift system. Jury test for subjective evaluation was carried out and sound quality index was developed. Averaged sound pressure level and sharpness were significant factors when glass moves down. Also, maximum loudness at stop section and averaged loudness were significant factor when glass moves up. Noise source identification was carried out for the reduced the loudness and sharpness during glass transferred section and impulsive noise at stop section, Using the source identification result, several improvement points were applied. And finally, the degree of sound quality improvement was judged using sound quality index.
Keywords
- Window Lift;
- Sound Quality Analysis;
- Subjective Evaluation;
- Multiple Linear Regression Analysis;
- Sound Quality Index
- 윈도우 리프트;
- 음질 분석;
- 주관적 평가;
- 다중 선형 회귀 분석;
- 음질 지수;