Active noise reduction method and system of automobile

An active noise reduction, automotive technology, applied in the direction of sound equipment, instruments, etc., can solve the problems of strong noise and limited noise reduction, and achieve the effect of reducing noise, improving ride quality, and using intelligence

Active Publication Date: 2016-04-20
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

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  • Active noise reduction method and system of automobile

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Embodiment Construction

[0042] 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.

[0043] see figure 1 , the embodiment of the present invention, a kind of automobile active noise reduction method, comprises:

[0044] S1. Detect the position of the person sitting in the compartment through the pressure sensor installed in the car seat;

[0045] S2, collect the sound source in the compartment through the microphones arranged at different positions in the compartment;

[0046] S3. Estimate the central area where the people in the compartment sit;

[0047] S4. Turn on the car audio system, and perform active noise reduction on the central area where the people in the car are located.

[0048] The active noise reduction method of the car in this embodiment is active noise reduction, which uses the pressure sensor placed i...

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Abstract

The invention discloses an active noise reduction method and system of an automobile. The method comprises: a pressure sensor arranged in an automotive seat detects a position where a person sits in the automobile; microphones arranged at different positions in the automobile collect sound sources in the automobile; a central area of the position where the person sits in the automobile is estimated; and an automotive sound system is turned on and active noise reduction is carried out on the central area of the position where the person sits in the automobile. With the method and system, active noise reduction is carried out by using the automotive sound system and thus the noises of the position where the person sits in the automobile can be reduced effectively, so that the riding quality is improved.

Description

technical field [0001] The invention relates to automobile technology, in particular to an automobile active 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 active noise reduction method,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/16
CPCG10K11/16
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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