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In-Car Sound Control System

A sound control and sound export technology, applied in the automotive field, to achieve a pleasant sound

Active Publication Date: 2017-09-26
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, only the sound in the car can be adjusted according to the preferences of the passengers to meet the needs of different people, but the existing noise control technology in the car cannot meet the above requirements

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0017] see figure 1 , figure 2 with image 3 , the present invention includes a sound transmission tube 1, an active sounder 2, a sound-tuning tube 4, a second resonant cavity 5, and a first resonant cavity 6, wherein the active sounder 2 includes a digital signal processor DSP, a gain amplifier F1, an audio amplifier F2, speaker SP, volume potentiometer W, resistor R and pickup D.

[0018] The installation method of each component is as follows:

[0019] The signal collection end of the sound transmission tube 1 is fixed between the engine intercooler and the throttle valve, the other end is inserted into the cab 3, the middle part of the sound transmission tube 1 is disconnected and connected to the first resonant cavity 6, and the sound transmission tube 1 is located at The part between the first resonant chamber 6 and the cab 3 is connected with the sound-tuning tube 4 through a three-way joint, and the material of this three-way joint is the same as the sound-transmit...

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PUM

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Abstract

The invention discloses an in-vehicle sound control system, which comprises a sound conducting tube, an active sounder, a sound adjusting tube and two resonant cavities, wherein one end of the sound conducting tube is used for acquiring a noise signal of an engine, and the other end of the sound conducting tube is inserted into a driving cab; a first resonant cavity is connected in series to the middle of the sound conducting tube; one end of the sound adjusting tube is connected with a sound signal output by the active sounder, and the other end of the sound adjusting tube is communicated with the sound conducting tube and is positioned between the first resonant cavity and the driving cab; the second resonant cavity is connected in series to the middle of the sound adjusting tube; sound filtering clapboards which are vertical to a sound transmission direction are arranged inside the two resonant cavities. Sound waves emitted by the active sounder are transmitted into the driving cab after being superposed with the engine noise, and the sound in the driving cab is enhanced or weakened by adjusting the frequencies and phases of the sound waves output by the active sounder. The system can adjust the level of the sound in the driving cab and adjust the frequency of the sound, thereby meeting the requirements of different drivers and passengers.

Description

technical field [0001] The invention relates to a device capable of controlling the volume and frequency of sound inside a car, belonging to the technical field of cars. Background technique [0002] With the rapid development of automobile technology, people put forward higher and higher requirements for the driving comfort of automobiles. Generally speaking, in order not to affect the normal conversation of the people in the car, the passengers hope that the noise in the car should be as small as possible, so there are many technological innovations aimed at reducing vehicle noise (such as the Chinese patent application number 201210164564.X An electronic active suppression system for interior noise disclosed in the literature). However, if the noise inside the car is too small, the driver will not be able to judge the operating condition of the vehicle based on the noise, which will adversely affect driving safety. At the same time, there are a few passengers who want t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R19/01
Inventor 王海东施倩郝栋张俊岩韩严胜李宇洲
Owner GREAT WALL MOTOR CO LTD