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Regional personalized automobile active noise control system

A technology of active noise control and area, applied in active noise control, signal transmission system, sound-generating equipment, etc., can solve the problems of not being able to meet the voice preferences of different seat occupants in the car at the same time, and the control effect is single, so as to improve the driving quality and experience, optimize the effect of the acoustic environment

Active Publication Date: 2020-02-04
JIANGSU UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the defect that the existing centralized ANC has a single control effect and cannot satisfy the voice preferences of different seat occupants in the car at the same time, an ANC system with a distributed control architecture is provided. The engine sound is the control object, and the total control unit is based on Different sound mode requirements of different seat occupants in the car, real-time determination of the control order numbers and their target amplitudes of each area, the regional sub-control unit executes the order control scheme of the general control unit, and obtains sound patterns at different seat positions in the car Different Active Control Effects

Method used

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  • Regional personalized automobile active noise control system
  • Regional personalized automobile active noise control system
  • Regional personalized automobile active noise control system

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Embodiment Construction

[0042] as attached figure 1 As shown, the regional personalized active noise control system in the vehicle of the present invention includes: an engine speed sensor 1, a total control unit 2, a mobile interaction module 3, J regional sub-control units (J is equal to the number of seats in the vehicle) And the microphone preamplifier 5, the microphone 6, the seat left speaker 7, the seat right speaker 8, the left power amplifier 9 and the right power amplifier 10 supporting each regional sub-control unit.

[0043] The engine speed sensor is installed at the front end of the crankshaft or the camshaft of the engine, and the output end is not only electrically connected with an input end of the main control unit, but also electrically connected with an input end of each sub-control unit.

[0044] There are J microphones in total, and one microphone is installed on the roof corresponding to each seat in the vehicle. figure 2 shown. The microphone is electrically connected to th...

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Abstract

The invention discloses a regional personalized automobile active noise control system, and relates to an automobile active noise control technology. The system comprises an engine rotating speed sensor, a master control unit, a mobile interaction module, a plurality of regional sub-control units, and a microphone preamplifier, a microphone, a seat left loudspeaker, a seat right loudspeaker, a left power amplifier and a right power amplifier which are matched with each regional sub-control unit. The mobile interaction module is used for selecting required control effect modes for different seat passengers in a vehicle, the master control unit determines the control order and the target amplitude of the head area of each seat according to the effect mode requirements of each passenger, andthe regional sub-control units execute the order control scheme of the master control unit to generate control signals of the loudspeakers of each seat. The regional personalized automobile active noise control system can realize various optional control effects in the head area of each seat and meet the personalized sound requirements of different passengers in the vehicle.

Description

technical field [0001] The invention relates to an automobile active noise control technology, and provides an automobile active noise control system capable of realizing various optional control effects in the head area of ​​each seat and meeting the personalized sound needs of different occupants in the vehicle. Background technique [0002] Vehicle interior noise control technology can be divided into passive control and active control. Passive noise control mainly adopts the method of installing sound insulation and sound absorption materials on the car. The noise reduction frequency band is limited, and to a certain extent, it increases the quality of the car and increases the energy consumption of the car. In the 1990s, people began to develop the Active Noise Control (ANC) system in the car. This technology has the advantages of wide control frequency band, small mass, flexible layout, and targeted control. Currently, it is used in some high-end models (mostly Passen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/178H04M1/725G08C17/02H04M1/72415
CPCG10K11/17823G10K11/17825G10K11/17857G08C17/02G10K2210/1282G10K2210/3023G10K2210/3221G08C2201/93H04M1/72412H04M1/72415
Inventor 姜顺明周涛陈士安匡志豪
Owner JIANGSU UNIV
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