Method for determining sound evaluation index of wiper system

Abstract

The embodiment of the invention discloses a method for determining evaluation indexes of a wiper system. The method comprises the following steps: determining sound data when the wiper system works, and obtaining user evaluation scores corresponding to the sound data; determining at least two psychological acoustic parameters corresponding to each piece of sound data, and determining at least one target evaluation parameter according to each psychological acoustic parameter and the user evaluation score; determining a target evaluation index corresponding to the target evaluation parameter according to the target evaluation score and a target linear regression equation constructed according to the target evaluation parameter and the user evaluation score; and determining the sound evaluation index of the wiper system according to the corresponding relationship between each target evaluation index and each sound data. According to the technical scheme provided by the embodiment of the invention, the problems that the evaluation index of the sound performance of the wiper system is single and the psychological attribute demand of the user is not considered are solved, and the systematicness and the professionality when the sound performance of the wiper system of the vehicle is evaluated are improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of vehicle performance testing, and in particular to a method for determining sound evaluation indicators of a wiper system. Background technique [0002] With people's pursuit of higher quality cars and the requirements for car sound, the sound quality of cars has become more and more important. The wiper system is one of the most commonly used operating parts of the vehicle. Its various performances directly affect the user's car experience, and the sound is one of the most intuitive experiences for the user in the process of using the wiper system. Therefore, a good Sound design is crucial for wiper systems. [0003] The existing evaluation of the sound performance of the wiper system mainly adopts the following two methods: one is for the detection of the noise during the operation of the wiper; the other is for the noise reduction method during the operation of the wiper, thro...

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Problems solved by technology

[0004] However, the above-mentioned noise detection method only determines the sound pressure level of the noise during the operation of the wiper, that is, it only analyzes the physical properties of the sound, and does not consider the psychological properties of the drivers and passengers as sound receivers. When the above method is used to evaluate the sound characteristics of the wiper during operation, the evaluation standard is relatively simple and has great limitations.

At the same time, the sound performance evaluation results obtained by the above two methods are not systematic and professional, and it is difficult to meet the needs of product development, and it is also difficult to provide R&D personnel with reference evaluation results that meet the comfort requirements of drivers and passengers.

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