Active Noise Control of the Heavy Truck Interior Cab

被引：1

作者：

李惠彬 ^{[1
]}

刘海光 ^{[1
]}

刘吉春 ^{[1
]}

上官云飞 ^{[2
]}

机构：

[1] School of Mechanical and Vehicular Engineering,Beijing Institute of Technology

[2] Beijing Auman Heavy Motor Plant

来源：

Journal of Beijing Institute of Technology | 2008年 / 17卷 / 04期

基金：

中国国家自然科学基金;

关键词：

heavy truck; cab interior noise; LSL algorithm; active noise control;

D O I：

10.15918/j.jbit1004-0579.2008.04.014

中图分类号：

TN912.2 [电声技术与设备];

学科分类号：

081002 ;

摘要：

In order to control the noise of the heavy truck interior cab effectively,the active noise control methods are employed. First,an interior noise field test for the heavy truck is performed,and frequencies of interior noise of this vehicle are analyzed. According to the spectrum analysis of acquired noise signal,it is found out that the main frequencies of interior noise are less than 800Hz. Then the least squares lattice (LSL) algorithm is used as signal processing algorithm of the controller and a closed-loop control DSP system,based on TMS 320VC5416,is developed. The residual signal at driver’s ear is used as feedback signal. Lastly,the developed ANC system is loaded into the heavy truck cab,and controlling the noise at driver’s ear for that truck at different driving speeds is attempted. The noise control test results indicate that the cab interior noise is reduced averagely by 0.9 dBA at different driving speeds.

引用

页码：400 / 404

页数：5

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