In-vehicle noise optimization method, device, equipment and medium

Through the virtual acoustic environment, the acoustic package strategy of the electric drive assembly is optimized, and the problem of electric vehicle noise optimization is solved under the tight resources and cycles is achieved, and efficient in-vehicle noise reduction and cost reduction are achieved.

CN119249716APending Publication Date: 2025-01-03DONGFENG MOTOR GRP
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Patent Information

Application Number
CN202411297096.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-18
Publication Date
2025-01-03

AI Technical Summary

Technical Problem

Electric vehicles face challenges in the optimization of noise, vibration and acoustic roughness (NVH). The existing methods are difficult to achieve accurate vehicle acoustic package optimization under the conditions of tight early-stage resources and cycles, and manual package solutions are costly and difficult. Achieve the sound insulation target.

Method used

By creating a virtual acoustic environment, determine the acoustic package strategy for the electric drive assembly, optimize the sound insulation volume, and perform sound insulation according to the target acoustic package strategy, including selecting the sound insulation pad material and wrapping rate to reduce noise.

Benefits of technology

In the early stage of the project, the acoustic package optimization of the electric drive assembly is quickly realized, which significantly improves the efficiency of interior noise optimization, reduces costs, and avoids the problem of the inability to achieve the sound insulation target caused by surrounding environmental parts.

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Abstract

The invention provides an in-vehicle noise optimization method and device, equipment and a medium. The method comprises the steps that at least one acoustic package strategy for an electric drive assembly of the vehicle is obtained; on the basis of a virtual acoustic environment created for the electric drive assembly in advance, the sound insulation amount of all the acoustic package strategies for noise generated by the electric drive assembly is determined; according to the data of each acoustic packet strategy on each of at least one preset dimension, determining a target acoustic packet strategy in the at least one acoustic packet strategy, the at least one preset dimension comprising the sound insulation amount; and according to the target acoustic package strategy, performing sound insulation treatment on the electric drive assembly. According to the method and the device, the acoustic package optimization based on the electric drive assembly can be quickly realized under the condition of shortage of resources and periods in the early stage of a project, the efficiency of in-vehicle noise optimization is remarkably improved, and the cost of in-vehicle noise optimization can be remarkably reduced.
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Citation Information

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