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Vehicle-interior masking sound quality self-adaption control system and method

An adaptive control, sound masking technology, applied in vehicle components, transportation and packaging, circuits or fluid pipelines, etc., can solve problems such as being unable to face practical applications, and staying at the basic research level of in-vehicle sound quality control.

Pending Publication Date: 2018-08-03
JILIN UNIV
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  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an adaptive control system for the masking sound quality in the car to overcome the problem that the existing sound quality control in the car based on the sound masking effect mostly stays at the basic research level and cannot be oriented to practical application. A self-compiled computer program provides a method for improving the sound quality of the car interior using an adaptive control system for the sound quality of the masking sound in the car

Method used

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  • Vehicle-interior masking sound quality self-adaption control system and method

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Embodiment Construction

[0119] The present invention is described in detail below in conjunction with accompanying drawing:

[0120] The purpose of the present invention is to make up for the inability of traditional vehicle interior noise control methods to effectively improve the interior sound quality, and propose a method that can adaptively track the interior noise changes when the vehicle driving conditions change, and can control the different frequency bands that affect the interior sound quality. The noise is selectively controlled to reduce the loudness and sharpness of the noise in the car in a targeted manner, thereby effectively improving the sound quality of the car in an adaptive and active control method. At the same time, an adaptive active control system for interior sound quality using this method is constructed.

[0121] 1. The structural composition of the adaptive control system for masking sound quality in the car:

[0122] refer to figure 1 , 2 and image 3 , The adaptive ...

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Abstract

The invention discloses a vehicle-interior masking sound quality self-adaption control system and method in order to solve the problems that existing vehicle-interior sound quality control mostly stays on the fundamental research level and cannot be actually applied. The self-adaption control system comprises a masking sound quality self-adaption control device, a vehicle-interior sound signal collecting device, an engine rotating speed signal collecting device, a loudspeaker combination / array device and a masking sound spectrum storing device, and the masking sound quality self-adaption control device is composed of a digital signal controller chip with the model being TMS320F28335, a sound frequency control chip with the model being TLV320AIC23, a sound power amplifier and a CAN bus transceiver with the model being SN65HVD230. The vehicle-interior sound signal collecting device, the engine rotating speed signal collecting device, the loudspeaker combination / array device and the masking sound spectrum storing device are electrically connected with the masking sound quality self-adaption control device.

Description

technical field [0001] The present invention relates to a device and method for controlling interior noise and improving interior sound quality based on the sound masking effect applied to motor vehicles, more specifically, the present invention relates to an adaptive control system for interior masking sound quality and method. Background technique [0002] The acoustic environment inside the vehicle is an important research content in the vehicle environment. It affects people's feelings and is an integral part of car comfort; it also affects people's driving operations on machines, which is related to car safety. Therefore, the acoustic problems in vehicles have always been paid attention to by researchers, and the corresponding NVH (Noise Vibration and Harshness) has also developed into an important research field in the discipline of vehicle engineering. In the design of automobile vibration and noise reduction, sound quality has become one of the important indicators ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/037
CPCB60R16/0373
Inventor 曹晓琳王双维王登峰陈静袁建昆崔征
Owner JILIN UNIV
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