A study of the potential for active control of road noise in automobiles.

1992 ◽  
Vol 91 (4) ◽  
pp. 2348-2348
Author(s):  
W. Brent Ferren ◽  
Robert J. Bernhard
Keyword(s):  
Active Control ◽  
Road Noise

Combined Feedforward–Feedback Active Control of Road Noise Inside a Vehicle Cabin

2014 ◽  
Vol 136 (4) ◽  
Author(s):  
Jie Duan ◽  
Mingfeng Li ◽  
Teik C. Lim ◽  
Ming-Ran Lee ◽  
Ming-Te Cheng ◽  
...  
Keyword(s):  
Active Control ◽  
Feedforward Control ◽  
Reference Signal ◽  
Active Noise Control ◽  
Internal Model Control ◽  
Feedback Controller ◽  
Road Noise ◽  
Vehicle Cabin ◽  
Model Control ◽  
Fxlms Algorithm

Conventional active control of road noise inside a vehicle cabin generally uses a pure feedforward control system with the conventional filtered-x least mean square (FXLMS) algorithm. While it can yield satisfactory noise reduction when the reference signal is well correlated with the targeted noise, in practice, it is not always possible to obtain a reference signal that is highly coherent with a broadband response typically seen in road noise. To address this problem, an active noise control (ANC) system with a combined feedforward–feedback controller is proposed to improve the performance of attenuating road noise. To take full advantage of the feedforward control, a subband (SFXLMS) algorithm, which can achieve more noise attenuation over a broad frequency range, is used to replace the conventional FXLMS algorithm. Meanwhile, a feedback controller, based on internal model control (IMC) architecture, is introduced to reduce the road noise components that have strong response but are poorly correlated with the reference signals. The proposed combined feedforward–feedback ANC system has been demonstrated by a simulation model with six reference accelerometers, two control loudspeakers and one error microphone, using actual data measured from a test vehicle. Results show that the performance of the proposed combined controller is significantly better than using either a feedforward controller only or a feedback controller only, and is able to achieve about 4 dBA of overall sound pressure level reduction.

Active control system for low-frequency road noise combined with an audio system

2001 ◽  
Vol 9 (7) ◽  
pp. 755-763 ◽  
Author(s):  
H. Sano ◽  
T. Inoue ◽  
A. Takahashi ◽  
K. Terai ◽  
Y. Nakamura
Keyword(s):  
Control System ◽  
Active Control ◽  
Low Frequency ◽  
Road Noise ◽  
Active Control System ◽  
Audio System

Channel self-adjusting filtered-x LMS algorithm for active control of vehicle road noise

2017 ◽  
Vol 13 (3/4) ◽  
pp. 267 ◽  
Author(s):  
Tao Feng ◽  
Guohua Sun ◽  
Mingfeng Li ◽  
Teik C. Lim
Keyword(s):  
Active Control ◽  
Lms Algorithm ◽  
Road Noise

Channel self-adjusting filtered-x LMS algorithm for active control of vehicle road noise

2017 ◽  
Vol 13 (3/4) ◽  
pp. 267
Author(s):  
Teik C. Lim ◽  
Guohua Sun ◽  
Mingfeng Li ◽  
Tao Feng
Keyword(s):  
Active Control ◽  
Lms Algorithm ◽  
Road Noise

scholarly journals Local active control of road noise inside a vehicle

2019 ◽  
Vol 121 ◽  
pp. 144-157 ◽  
Author(s):  
Woomin Jung ◽  
Stephen J. Elliott ◽  
Jordan Cheer
Keyword(s):  
Active Control ◽  
Road Noise

scholarly journals Development of active control system for low frequency road noise: Solutions for practical use and system configuration.

2001 ◽  
Vol 22 (5) ◽  
pp. 378-379
Author(s):  
Hisashi Sano ◽  
Toshio Inoue ◽  
Akira Takahashi ◽  
Tsuyoshi Yamashita ◽  
Mitsuo Nakamura ◽  
...  
Keyword(s):  
Control System ◽  
Active Control ◽  
Low Frequency ◽  
System Configuration ◽  
Road Noise ◽  
Active Control System
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