汽车自吸式门锁关闭声分析与优化

IF 2.8 Q2 TRANSPORTATION SCIENCE & TECHNOLOGY SAE International Journal of Vehicle Dynamics Stability and NVH Pub Date : 2023-04-04 DOI:10.4271/10-07-02-0012
Yan Zhang, Hangsheng Hou, Yusheng Yang, Jingting Feng, Z. Zhang
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引用次数: 1

摘要

随着客户期望的提高和汽车技术的进步,汽车功能和操作正变得更加智能化。电动自吸门锁实现侧门、掀背门、推拉门、升降门、舱盖等的自动关闭和锁定。它们被广泛应用于高端车型中,以实现柔和关闭的优雅。在对汽车质量的感知列表中,关门声质量一直是市场上客户关注的重要问题之一。与传统门锁相比,电动自吸门锁为噪音、振动和粗糙度(NVH)的音质发展提供了另一个维度。本文对自吸式门锁机构关门声的特点进行了分析和说明。人类对自吸门锁工作过程中不同声音的感知是通过主观评价进行排序的。对于与自吸锁机构相关的典型闭门声,即电机声和回弹声,讨论了实际案例。本文还介绍了一个由掀背车门自吸锁引起的噪声问题。在这些情况下,调查了声音与自吸门锁结构之间的相关性,并确定了遇到问题的根本原因。与自吸门锁相关的关门音质在每种情况下都得到改善,以满足方案要求。在本工作中提出的特殊情况下,分析最初涉及音质研究的心理声学指标。后来发现声压级可以解决遇到的问题,因此只包括声压级结果。
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Analysis and Optimization of Automotive Self-Priming Door Lock Closing Sound
With higher customer expectations and advances in vehicular technology, automotive functions and operations are becoming more intelligent. Electric self-priming door locks fulfil the automatic closing and locking of side doors, hatchback doors, sliding doors, liftgates, decklids, etc. They are widely implemented into high-end models for the elegance of soft closing. In the list of perceived vehicle qualities, door-closing sound quality has been one of the important customer concerns in the market. In comparison to conventional door locks, electric self-priming door locks add another dimension to the development of sound quality for noise, vibration, and harshness (NVH) efforts. In this article, the characteristics of door-closing sound involving self-priming door lock mechanisms are analyzed and illustrated. Human perception of different sounds from the self-priming door lock working process is ranked by subjective evaluations. For typical door closing sounds associated with the self-priming lock mechanisms, i.e., the motor sound and rebound sound, real-case examples are discussed. A case of the buzzing noise issue due to the self-priming lock on a hatchback door is also presented. In these cases, the correlation between the sounds and the structure of the self-priming door locks is investigated and the root causes of the encountered issues are identified. The door closing sound quality associated with the self-priming door locks is improved in each case to meet the program requirements. In the particular cases presented in this work, the analysis involves psychoacoustic metrics for sound quality study originally. It is found later that sound pressure level can address the encountered issues, and thus only sound pressure level results are included.
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CiteScore
6.40
自引率
41.20%
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