Dynamic and Noise Characteristics of Lead Screw in Vehicle Power Seat Adjuster

Kim, Sung-Yuk; Kim, Key-Sun

doi:10.1007/978-3-319-79005-3_4

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…The mechanisms of automobile interior parts, such as power seats, are generally composed of motors, shafts, gears, rails, and frame structures, which are vulnerable to noise and vibration because the mechanisms are intensively arranged in a narrow space [6][7][8]. In particular, in autonomous vehicles, because the seat slide rail has a long rail structure with a length of 1000 mm or more, the stiffness of the rail is reduced and the driving speed is increased, resulting in an overall increase in driving noise [9].…”

Section: Introductionmentioning

confidence: 99%

Methodology for Sound Quality Analysis of Motors for Automotive Interior Parts through Subjective Evaluation

Kim

Ryu

Jun

et al. 2022

Sensors

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With the development of autonomous vehicles, activities in the indoor spaces of autonomous vehicles are diversifying. Therefore, as the operating range of the interior parts increases, the occupant becomes sensitive to the operating noise of autonomous vehicles. Therefore, to reduce operating noise, it is necessary to analyze the causal relationship between the mechanical/electrical noise characteristics of the motor and sound quality. In this paper, we propose a methodology to analyze the relationship between the noise frequency components and the sound quality of small motors used in automobile interior parts. Two types of motors were selected for this study, and noise measurements and analyses were performed by applying the design proposed in this study. Subjective sound quality evaluations were conducted using the 12 pairs of adjectives extracted from the survey. The results suggest that subjective sound quality evaluation scores should be converted to Z-scores to ensure the reliability of the statistical analysis. In addition, we present a critical sound quality value that can be used as a criterion for determining whether the sound quality is positive (good quality) or negative (bad quality). Sound quality regression models explain the causal relationship between rotational frequency components of the motor and subjective sound quality characteristics. Thus, a method for analyzing the effect of the rotational frequency component of the motor on the sound quality is presented, which suggests that it can be used as basic research data to improve the noise performance of the motor.

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Section: Introductionmentioning

confidence: 99%

Methodology for Sound Quality Analysis of Motors for Automotive Interior Parts through Subjective Evaluation

Kim

Ryu

Jun

et al. 2022

Sensors

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“…2016년 Kim et al (2) 은 슬라이드 레일의 동특성을 파악하여 200 Hz~300 Hz 영역에서 발생하는 구조 공진에 의한 소음 증폭을 실험 을 통해 규명하였다. 이와 더불어 2018년에는 lead screw 의 동특성에 의한 슬라이드 작동 소음의 영향을 실험 과 수치해석을 통해 도출하였다 (16) . (18,19) .…”

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“…이 외에 시트 무게와 사람의 하 중에 의해 가해지는 힘은 시트 레일에 전달된다. 즉, 리드 스크류는 모터의 토크에 의해 전달되는 힘의 영 향만을 받게 되는 구조이다(16) .Fig. 2는 작동 시험을 진행했던 반무향실을 나타낸 것이다.…”

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Sensory Evaluation of Sound Quality for Vehicle Power Seat Slide Adjuster

Kim¹,

Oh²,

Kim³

2019

KSNVE

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In this study, we analyzed the image characteristics of vehicle type and the operating sound quality by jury testing the operating noise of the power seat slide adjuster for the vehicle. First, the operating noise for five test power seats was measured and adjectives for subjective sound quality evaluation were extracted through questionnaires. Next, the images according to vehicle type were examined using the extracted adjectives. Third, a subjective evaluation of sound quality was performed using a loud speaker. At this time, the sound quality and the sound image of the operating noise were extracted by examining the preference, adjective score using the semantic differential, and vehicle matching the sound source. Thus, it was possible to suggest sound quality characteristics of slide operating noise and improvements in sound quality according to vehicle type.

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