Exhaust active sound quality system and design method based on system

Abstract

The invention discloses an exhaust active sound quality system and a design method based on the system, and aims to provide the exhaust active sound quality system and the design method based on the exhaust active sound quality system.The key points of the technical scheme are that the method includes: setting exhaust sound quality models with different attributes; collecting, analyzing and confirming the characteristic objective parameter performance of the exhaust noise in the original state on a to-be-developed vehicle model, and confirming objective problem parameter items which do not meet the requirements in the exhaust noise quality model, so as to confirm the target grade of objective parameter design of the virtual exhaust noise; intelligently matching different sound sample libraries and sound algorithms by using an exhaust active sound production system, carrying an exhaust loudspeaker to produce sound, fitting with the noise of an original exhaust system, collecting objective parameters in an exhaust active sound production operation state, and finally performing checking in a target exhaust sound quality model, and if the request is not met, cyclically adjusting the sound configuration scheme until the goal of exhaust sound qualities of different attributes may be achieved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an exhaust active sound quality system and a design method based on the system. Background technique [0002] The design and development of diversified sound quality of automobiles can not only bring different elements of experience to drivers and passengers, but also fully reflect the grade and brand value of the car based on the matching of sound quality of different models. During the acceleration of traditional internal combustion engine vehicles or hybrid vehicles, the noise inside and outside the vehicle is not only the engine noise, but also the exhaust system noise is the main noise source. The realization of quality goals is one of the key tasks in the development of exhaust noise. The active sound control technology combined with the development of exhaust noise is used to control the design of exhaust sound quality, which is an intelligent application method to realize the ...

AI Technical Summary

Problems solved by technology

[0004] However, at present, it is often limited by the engine displacement and the structure of the exhaust system, and it is impossible to design the exhaust sound quality that meets the requirements.

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