Vehicle road noise auxiliary analysis and evaluation method and system

Abstract

The invention relates to a vehicle road noise auxiliary analysis and evaluation method and system. The method comprises the following steps: a database establishment step: establishing a database of basic data characteristic parameters of existing vehicle road noise; an evaluation label establishing step: on the basis of the database, classifying and screening the data by adopting a first algorithm, and analyzing part of data samples to obtain evaluation labels of the sample data; a screening step: in a vehicle road noise analysis process, screening the vehicle road noise analysis data by utilizing the basic data characteristic parameters output by the database so as to screen out effective data; and an evaluation step: evaluating the valid data screened in the screening step by using theevaluation tag established in the evaluation tag establishment step. According to the invention, an NVH engineer can be helped to effectively evaluate the road noise performance of the vehicle.

Description

technical field [0001] The invention relates to the technical field of noise analysis, in particular to a vehicle road noise auxiliary analysis and evaluation method and a vehicle road noise auxiliary analysis and evaluation system. Background technique [0002] With the improvement of people's living standards and the significant increase in the penetration rate of mass vehicles, consumers have higher and higher requirements for automotive NVH (Noise Vibration and Harshness, vibration, noise and harshness), and vehicles running on the road are The state in which customers have the most contact with the vehicle during the use of the vehicle, and the noise level in the process is one of the highest concerns of customers. [0003] Therefore, in the process of vehicle NVH development, road noise test is an indispensable link to verify the NVH performance of the whole vehicle. The analysis and judgment of vehicle road noise test data in the current technology mainly relies on t...

AI Technical Summary

Problems solved by technology

[0005] (1) There are many parameters involved in the vehicle road noise assessment process, involving noise values ​​in different frequency bands and various parameters that are not derived. If it takes a lot of time to confirm each parameter one by one during the test process, it will waste test resources. If it is not confirmed, once there is a problem with the data, it will be more time-consuming and laborious to re-coordinate resources for testing;

[0006] (2) Strong subjectivity. Even if there are certain objective parameters to support, the final evaluation of the vehicle depends largely on the personal opinion of the engineer, and the evaluation deviation between different engineers is large

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