Idling noise optimization method, device and equipment and storage medium

Abstract

The invention discloses an idling noise optimization method, device and equipment and a storage medium. The method comprises the steps: carrying out the shielding disconnection operation of a preset part of a to-be-detected vehicle in a preset testing environment, so as to obtain corresponding target noise; according to the target noise and a preset sound pressure formula, obtaining the noise contribution of each noise of the to-be-detected vehicle under the idling working condition; and determining a noise optimization scheme of the to-be-detected vehicle according to the noise contribution amount, so that main problem points influencing idle noise in the vehicle can be quickly and effectively optimized, the NVH performance of the whole vehicle is improved, and the idle noise of the wholevehicle can be quickly and effectively optimized in a targeted manner.

Description

technical field [0001] The invention relates to the field of automobile noise reduction, in particular to an idle noise optimization method, device, equipment and storage medium. Background technique [0002] With the continuous improvement of people's requirements for car comfort, the NVH (Noise, noise; Vibration, vibration; Harshness, sound-vibration roughness) performance of cars has been paid more and more attention by people. The first thing to perceive is also an important factor to evaluate the NVH performance of the whole vehicle; because the noise components contained in the idling noise are relatively complex, including both structural sound and radiation sound, there is no good method for separation and contribution decomposition. The contribution of idling noise has not been clearly analyzed, which is not conducive to the noise reduction work. [0003] Existing methods mainly rely on the experience of NVH engineers, which are relatively subjective. Spectrum anal...

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Problems solved by technology

[0004] The main purpose of the present invention is an idling noise optimization method, device, equipment, and storage medium, aiming to solve the problem of relying on the experience of NVH engineers in the prior art, which is relatively subjective, and the frequency spectrum analysis cannot confirm the powertrain and exhaust. Corresponding to the size and contribution of the frequency, and the technical problem that it is impossible to optimize the idle noise of the whole vehicle in a targeted, fast and effective manner

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