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Vehicle sound insulation target line making method and device and readable storage medium

A target line and sound insulation technology, which is applied in the directions of sound production equipment, speech analysis, instruments, etc., can solve the problem of non-unique sound insulation target line, and achieve the effect of avoiding the influence of subjective ideas.

Pending Publication Date: 2022-07-15
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a method, device, and readable storage medium for formulating a vehicle sound insulation target line, which can solve the problem that the vehicle sound insulation target line formulated in the prior art is not unique

Method used

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  • Vehicle sound insulation target line making method and device and readable storage medium
  • Vehicle sound insulation target line making method and device and readable storage medium
  • Vehicle sound insulation target line making method and device and readable storage medium

Examples

Experimental program
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Effect test

Embodiment approach

[0076] As an optional implementation manner, the sound pressure level acquisition module 1 specifically includes:

[0077] The in-vehicle sound pressure level acquisition unit is used to acquire the sound pressure level collected by the first microphone under the noise sound source of each frequency in the preset frequency range, and obtain the sound pressure level under the noise sound source of each frequency in the preset frequency range The tested interior noise sound pressure level, wherein the noise source is set in the car; the first microphone is set in the car;

[0078] The outside sound pressure level acquisition unit is used to acquire the sound pressure level collected by the second microphone under the noise sound source of each frequency in the preset frequency range, and obtain the sound pressure level under the noise sound source of each frequency in the preset frequency range The tested sound pressure level of noise outside the vehicle, wherein the noise sourc...

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Abstract

The invention discloses a method for formulating a sound insulation target line of a vehicle, which comprises the following steps of: determining corresponding noise attenuation according to an in-vehicle noise sound pressure level and an out-vehicle noise sound pressure level under a noise source of each frequency in a preset frequency range; and according to a pre-constructed vehicle sound insulation function model, each frequency in a preset frequency range and the noise attenuation under the noise source of each frequency in the preset frequency range, a vehicle sound insulation target line is formulated. A function fitting idea is adopted to fit a vehicle sound insulation function model, so that the influence of subjective thoughts of engineers is avoided, and the fitted vehicle sound insulation target line has uniqueness. Meanwhile, the embodiment of the invention further correspondingly provides a device for formulating the sound insulation target line of the vehicle and a readable storage medium.

Description

technical field [0001] The present invention relates to the technical field of vehicle sound insulation, and in particular, to a method, a device and a readable storage medium for formulating a vehicle sound insulation target line. Background technique [0002] The setting of the sound insulation target line is extremely important in the development of the noise, vibration and harshness (NVH) of the whole vehicle. The final target line of sound insulation is the development target of the whole vehicle NVH performance acoustic package system, which determines the subsequent acoustic package system. The development strategy can avoid excess vehicle NVH performance. Car companies do not have relevant setting standards, and the status quo is generally to artificially draw a sound insulation target curve according to the target vehicle. However, see figure 1 , figure 1 It is a schematic diagram of different target lines formulated by different engineers using existing methods ...

Claims

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Application Information

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IPC IPC(8): G10L25/51G10K11/16
CPCG10L25/51G10K11/16
Inventor 彭程孙敏沈丹蘅姜东明徐峰宋俊
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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