Active control system of vehicle interior road noise based on NFXLMS algorithm
ZHANG Lijun1,2, ZHANG Xiyu1,2, MENG Dejian1,2
1.School of Automotive Engineering, Tongji University, Shanghai 201804, China;
2.Collaborative Innovation Center for Intelligent New Energy Vehicle, Tongji University, Shanghai 201804, China
摘要针对车内结构型道路噪声的时变、宽带、随机特性，建立基于归一化参考信号滤波最小均方误差（Normalized Filter-x Least Mean Square，NFXLMS）算法的道路噪声主动控制系统。首先通过理论推导，分别建立了多通道参考信号滤波最小化均方误差（Filter-x Least Mean Square, FXLMS）算法和NFXLMS算法，计算复杂度分析表明NFXLMS算法的计算量增量可以忽略。然后，在Simulink中搭建了两种算法的车内道路噪声主动控制系统离线仿真模型，以破损粗沥青路面采集的车内道路噪声数据进行离线仿真，结果表明基于NFXLMS算法的道路噪声主动控制系统具有更好的鲁棒性和工况适应性。最后，用MicroAutoBox作为实时控制器，搭建了基于NFXLMS算法的车内道路噪声主动控制系统硬件在环试验平台，通过实车道路试验验证了该系统的有效性。
Abstract：Here, aiming at time-varying, broadband and random characteristics of vehicle interior structure-borne road noise, the road noise active control system was established based on the normalized filter-x least mean square (NFXLMS) algorithm.Firstly, through theoretical deriving,the multi-channel filter-x least mean square (FXLMS) algorithm and the multi-channel NFXLMS algorithm were established, respectively.The computation complexity analysis showed that the computational increment of NFXLMS algorithm can be negligible.Then, off-line simulation models for the vehicle interior road noise active control system were built with the two algorithmsin Simulink.The off-line simulation using data collected from damaged rough asphalt pavement showed that the road noise activecontrol system based on NFXLMS algorithm has better robustness and working condition adaptability.Finally, a MicroAutoBox was taken as the real-time controller, the hardware-in-loop test platform for the vehicle interior road noise active control system based on NFXLMS algorithm was built, and actual road tests were conducted to verify the effectiveness of the system.
张立军1,2,张希玉1,2,孟德建1,2. 基于NFXLMS算法的车内道路噪声主动控制系统[J]. 振动与冲击, 2020, 39(21): 173-178.
ZHANG Lijun1,2, ZHANG Xiyu1,2, MENG Dejian1,2. Active control system of vehicle interior road noise based on NFXLMS algorithm. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(21): 173-178.
[1] 樊月珍. 汽车运动噪声研究现状及展望[J]. 交通科技与经济, 2008(02):58-59.
FAN Yuezhen. Research Developments and Prospects of Moving Vehicle Noise[J]. Technology & Economy in Areas of Communications, 2008(02):58-59.
[2] M. H C, D. R E. Active reduction of low-frequency tire impact noise using digital feedback control[J]. IEEE Control Systems Magazine, 1989,9(5):3-6.
[3] OH C, IH K, LEE J, et al. Development of a Mass-producible ANC System for Road Noise[J]. ATZ worldwide, 2018,120(7):58-63.
[4] THILAGAM S, KARTHIGAIKUMAR P. Implementation of Interior Noise Control System Using Digital Adaptive Filter for On-Road Car Applications[J]. Wireless Personal Communications, 2018:1-18.
[5] ZAFEIROPOULOS N, CHRISTOPH M, ZOLLNER J, et al. Active control of structure-borne road noise: A control strategy based on the most significant inputs of the vehicle: INTER-NOISE 2016 - 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, Hamburg, Germany, 2016[C]. German Acoustical Society (DEGA), 2016.
[6] CHI S O, KANG D I, LEE H M, et al. Development of an Active Road Noise Control System[J]. Atz Worldwide, 2015,117(1):36-39.
[7] SHI-HWAN O, HYOUN-SUK K, YOUNGJIN P. Active control of road booming noise in automotive interiors[J]. Journal of the Acoustical Society of America, 2002,111(1):180-188.
[8] PARK Y, KIM H S, OH S H. Active noise control for road booming noise attenuation [M]//Active Sound and Vibration Control: theory and applications. IET Digital Library, 2002:345-354.
[9] ADACHI S, SANO H. Application of two-degree-of-freedom type active noise control using IMC to road noise inside automobiles: 35th IEEE Conference on Decision and Control, New York, NY, USA, 1996[C]. IEEE, 1996//.
[10] SUTTON T J, ELLIOTT S J, MCDONALD A M, et al. Active control of road noise inside vehicles[J]. Noise Control Engineering Journal, 1994,42(4):137-147.
[11] FERREN W B, BERNHARD R J. Active Control of Simulated Road Noise: Noise & Vibration Conference, 1991[C]. SAE International, 1991.
[12] SUTTON T J, ELLIOTT S J. Active control of interior road noise[J]. Noise and Vibration Worldwide, 1994,25(2):14-16.
[13] ELLIOTT S J. Active Control Of Structure-Borne Noise[J]. Journal of Sound and Vibration, 1994,177(5):651-673.
[14] TJ S, SJ E, MOOREI. Use of nonlinear controllers in the active attenuation of road noise inside cars[J]. INTERIOR NOISE, 1991.
[15] FARHANG-BOROUJENY B. Adaptive filters: theory and applications, 2nd ed.[M]. Chichester, West Sussex: John Wiley & Sons, 2013.
[16] 陈克安. 有源噪声控制[M]. 第2版. 北京: 国防工业出版社, 2014.
CHEN Kean. ACTIVE NOISE CONTROL, Second Edition. Bejing: National Defense Industry Press, 2014
