基于多通道C-FxLMS的乘用车内发动机声音分区控制*

doi:10.19562/j.chinasae.qcgc.2020.10.016

汽车工程 ›› 2020, Vol. 42 ›› Issue (10): 1412-1419.doi: 10.19562/j.chinasae.qcgc.2020.10.016

基于多通道C-FxLMS的乘用车内发动机声音分区控制^*

贺岩松¹, 张士强¹, 张志飞¹, 周桃²

1.重庆大学汽车工程学院,重庆 400030;
2.重庆市埃库特科技有限责任公司,重庆 400000

收稿日期:2019-12-03 修回日期:2020-01-30 出版日期:2020-10-25 发布日期:2020-10-26
通讯作者: 贺岩松,教授,博士,E-mail:hys68@cqu.edu.cn。
基金资助:
* 国家自然科学基金(51275540)资助。

Engine Sound Partition Control in Passenger Car Based on Multi-channel Command-FxLMS Algorithm

He Yansong¹, Zhang Shiqiang¹, Zhang Zhifei¹, Zhou Tao²

1. School of Automotive Engineering, Chongqing University, Chongqing 400030;
2. Chongqing Acoutec Technology Co., Ltd., Chongqing 400000

Received:2019-12-03 Revised:2020-01-30 Online:2020-10-25 Published:2020-10-26

摘要/Abstract

摘要： 在汽车行驶时,驾驶员与乘客对发动机声音的要求不同,驾驶员需要一定的车辆行驶状况反馈而乘客需要相对安静的休息环境。本文中基于多通道Command-FxLMS算法,通过在驾驶员头枕和其它乘客头枕位置设定不同的阶次目标声音以实现对发动机声音的分区主动控制,利用DSP硬件平台,针对乘用车内2阶、3阶发动机噪声进行实车试验,在驾驶员和乘客位置实现了对声音的分别控制:驾驶员位置消除2阶噪声的同时将3阶噪声提升到目标声压级,其它位置降低2阶噪声的同时维持原有较低水平的3阶噪声。试验结果表明发动机声音分区主动控制系统工作良好。

关键词: 主动噪声控制, Command-FxLMS, 声音分区, 发动机噪声

Abstract: The driver and passenger have different requirements on the engine sound when the car is running. The driver needs a certain feedback of the vehicle driving conditions while the passenger needs a relatively quiet environment for rest. In this paper, on the basis of multi-channel Command-FxLMS algorithm, the active control of engine sound partition is realized by setting up different orders of target sound at the driver’s headrest position and other passenger’s headrest positions. Based on the DSP hardware platform, the real vehicle test is carried out for the 2nd and 3rd orders engine noise in the passenger car, and the sound partition control is realized at the driver’s position and the passenger’s position. At the driver’s position, the second order noise is eliminated and the third order noise is raised to the target sound pressure level, while at other positions, the second order noise is reduced and the third order noise is maintained at the low level. The experiment results show that the active control system of engine sound partition works well

Key words: active noise control, Command-FxLMS, sound partition, engine noise

贺岩松, 张士强, 张志飞, 周桃. 基于多通道C-FxLMS的乘用车内发动机声音分区控制^*[J]. 汽车工程, 2020, 42(10): 1412-1419.

He Yansong, Zhang Shiqiang, Zhang Zhifei, Zhou Tao. Engine Sound Partition Control in Passenger Car Based on Multi-channel Command-FxLMS Algorithm[J]. Automotive Engineering, 2020, 42(10): 1412-1419.

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基于多通道C-FxLMS的乘用车内发动机声音分区控制^*

Engine Sound Partition Control in Passenger Car Based on Multi-channel Command-FxLMS Algorithm

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