Automotive Sound Quality - Powertrain, Road and Wind Noise
Automotive Sound Quality - Powertrain, Road and Wind Noise
复制标题
作者：
G. Cerrato
这是关于声音和振动质量的系列文章中的第二篇。第一次会议（2007年5月）涉及声音和振动质量目标制定过程。该课程主要针对汽车行业，特别是车辆中与动力总成、道路和风噪声相关的声音质量问题（振动质量将单独讨论）。下一篇文章将讨论其余汽车部件/子系统的声音质量标准[附件，BSR（嗡嗡声，吱吱声和嘎嘎声），制动器，静态声音]。我需要提醒读者，我的目标是提供一个知识和技术的审查，很清楚，它不会是详尽的，我会错过很多东西。我提前道歉，我想请读者给我发电子邮件，对本系列的下一篇文章提出评论、问题和建议。本文简要总结了用于车辆中每个子系统/部件的客观参数或指标。用于导出这些指标（信号处理）或它们与客户感知（陪审团研究）的相关性的技术描述超出了本文的范围。然而，提供了一个广泛的参考文献列表，其中详细介绍了这些方法（参考文献按系统和每个系统内的时间顺序分组）。最后，该文章仅限于车辆在运行期间的固有声音，因此它没有解决汽车音频或有源噪声控制系统的声音质量等问题。
This is the second article in a series on the subject of sound and vibration quality. The first (May 2007) covered the sound and vibration quality target development process. This focuses on the automotive industry and specifically on sound quality issues in vehicles (vibration quality will be covered separately) related to powertrain, road and wind noise. The next article will discuss sound quality criteria for the remaining automotive components/ sub-systems [accessories, BSR (buzz, squeak & rattle), brake, static sounds]. I need to remind the readers that my goal is to provide a review of knowledge and techniques, well knowing that it will not be exhaustive and that I will miss a lot of things. I apologize in advance and I would like to ask readers to e-mail me with comments, questions and suggestions for the next articles in the series. This article provides a brief summary of objective parameters or metrics used for each sub-system/component in a vehicle. The description of the techniques used to derive either these metrics (signal processing) or their correlation to customer perception (jury studies) is outside the scope of this article. However, an extensive list of references is provided, where these methods are detailed (references are grouped by system and chronologically within each system). Finally, the article is limited to the sound inherent in a vehicle during its operation, so it does not address issues such as sound quality of car audio or active noise control systems.