Active Control of Road Noise in Vehicles Running on Impulsive Road

被引：0
|
作者：
Zhihao W. [1 ]
Zhongming X. [1 ]
Iheng X. [1 ]
Hucheng W. [1 ]
Jiacong H. [1 ]
机构：
[1] School of Mechanical and Vehicle Engineering, Chongqing University, Chongqing
来源：
Qiche Gongcheng/Automotive Engineering | 2023年 / 45卷 / 01期
关键词：
active noise control; FxLMAD; in-vehicle road noise; α stable distribution;
D O I：
10.19562/j.chinasae.qcgc.2023.01.014
中图分类号：
学科分类号：
摘要：
Aiming at the problem of performance drop of road noise active control based on LMS algorithm when facing impulsive noise， a road noise active control system based on filter-x least mean absolute deviation （FxLMAD） algorithm is built to control impulsive road noise inside a vehicle. Firstly， the characteristics of in-vehicle noise under the impulsive road condition are analyzed， discovering that the noise is non-Gaussian and more consistent with α stable distribution. Then， a simulation is conducted on noise active control system based on FxLMAD algorithm with a result indicating that the algorithm is simple in structure and requires less calculation efforts， while achieving good noise reduction effects. Finally， an active control system for in-vehicle noise is built and a real fuel vehicle road test is completed on impulsive road. The results show that with the active control system for in-vehicle road noise based on FxLMAD algorithm， the total sound pressure level in the range of 50~500 Hz reduces by about 2dB（A）， apparently superior than that with the ordinary LMS algorithm. © 2023 SAE-China. All rights reserved.
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页码：119 / 127
页数：8
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