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Automobile intelligent noise reduction control system

A control system and intelligent technology, which is applied in the direction of electric control of exhaust treatment devices, exhaust treatment, mechanical equipment, etc., can solve problems such as lack of sound-absorbing performance, and achieve the goal of improving ride comfort, improving noise reduction effect, and reducing noise Effect

Pending Publication Date: 2021-06-01
GUILIN UNIV OF ELECTRONIC TECH
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AI Technical Summary

Problems solved by technology

The length of each chamber is different, and it is usually designed in different forms to eliminate noise in different frequency bands. Although the two-pipe three-chamber resistant muffler can reduce engine noise, but for low-frequency noise, the two-pipe three-chamber resistant muffler The sound reduction performance of the muffler is lacking

Method used

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  • Automobile intelligent noise reduction control system
  • Automobile intelligent noise reduction control system
  • Automobile intelligent noise reduction control system

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the present invention, rather than Full examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] as attached figure 1 To attach Figure 9 shown.

[0027] An automobile intelligent noise reduction control system, comprising a three-pipe three-chamber resistant muffler 1, an audio system 2, an adaptive control device 3, a microphone microphone 4, a rear secondary speaker 5, a front secondary speaker 6, and an engine 7, wherein The gas discharged from the engine 7 is connected to the three-pipe three-chamber resistant muffler 1 throu...

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Abstract

The invention belongs to the technical field of automobile production, and particularly relates to an automobile intelligent noise reduction control system which comprises a three-insertion-tube three-cavity reactive silencer, an audio system, a self-adaptive control device, a microphone, a rear secondary loudspeaker and a front secondary loudspeaker. The feedback type active noise control set is adopted, on the basis of traditional passive sound insulation, the noise reduction effect is further improved, noise generated in the automobile running process is reduced to the maximum extent, and the taking comfort of passengers is improved.

Description

technical field [0001] The invention belongs to the technical field of automobile production, and in particular relates to an automobile intelligent noise reduction control system. Background technique [0002] In automobile noise, the engine and its exhaust noise are the main noise sources of the automobile. The simplest, most effective and most important way to reduce exhaust noise is to use an exhaust muffler. A muffler is a device that prevents sound transmission and allows airflow to pass through. , installed on the exhaust pipe of the engine to reduce the exhaust noise of the engine. When the exhaust gas from the automobile engine passes through the muffler, the energy of the airflow is consumed, and the pressure fluctuation range of the airflow is reduced or attenuated, thereby achieving the purpose of reducing exhaust noise. [0003] At present, passive methods such as isolation or absorption are mostly used for noise reduction in automobile compartments. For exampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/00F01N1/06F01N1/08F01N9/00
CPCF01N13/007F01N1/065F01N1/089F01N9/00Y02T10/40
Inventor 唐荣江顾昱彬何宏斌石胜文许恩永郑伟光
Owner GUILIN UNIV OF ELECTRONIC TECH
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