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Automobile noise reduction method and system

A noise reduction system, a technology for automobiles, applied in vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve the problems of limited noise reduction and strong noise, improve sound insulation, reduce noise, and use intelligent Effect

Active Publication Date: 2016-06-15
FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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AI Technical Summary

Problems solved by technology

The above technologies are all passive noise reduction technologies, which can indeed reduce the noise decibels in the cabin, but the degree of noise reduction is limited, especially when the car is driving at high speed, the noise in the cabin is still very strong

Method used

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Embodiment Construction

[0024] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0025] see figure 1 , the embodiment of the present invention, a kind of automobile noise reduction method, comprises:

[0026] Judging whether the current driving speed of the car exceeds a preset threshold, if yes, then perform active noise reduction, if not, then do not perform active noise reduction, wherein the preset threshold is 60 kilometers per hour, and the active noise reduction includes the following steps:

[0027] S1. Inflate the inflatable air bag preset in the car door sealing strip to improve the sound insulation of the car door;

[0028] S2, collect the sound source in the compartment through the microphones arranged at different positions in the compartment;

[0029] S3. Separate the human voice from the sound source; ...

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Abstract

The invention discloses an automobile noise reduction method and system. The automobile noise reduction method includes the steps that sound sources in a carriage are collected through microphones arranged at different positions in the carriage; the human voice is separated from the sound sources; the positions of persons in an automobile are calculated according to the human voice collected through the different microphones; and an automobile audio system is started for actively reducing the noise of the positions of the persons in the automobile. The automobile audio system is adopted for active noise reduction, the noise of the positions taken by the persons in the carriage is effectively reduced, and the taking quality is improved.

Description

technical field [0001] The invention relates to automobile technology, in particular to an automobile noise reduction method and system. Background technique [0002] The noise of the car mainly comes from road noise, tire noise, wind noise and engine noise. All have high requirements. And in the prior art, the noise suppression in the automobile compartment is mainly by improving the sealing of the compartment, the shock absorption system of the chassis, the sound insulation effect of the engine compartment, and selecting silent tires. The above-mentioned technologies are all passive noise reduction technologies, which can indeed reduce the noise decibels in the cabin, but the degree of noise reduction is limited, especially when the car is running at high speed, the noise in the cabin is still very strong. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an automobile noise reduction method, which is used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/037
CPCB60R16/0373
Inventor 任珂陈文强刘心文郑士岑
Owner FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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