The Performance Improvement for an Active Noise Control of an Automotive Intake System under Rapidly Accelerated Conditions

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概要

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• The study of the noise reduction of an automobile has been concentrated on the reduction of the automotive engine noise because the engine noise is the major cause of automotive noise. However, many studies of automotive engine noise led to the interest of the noise reduction of the exhaust and intake system. The method of the reduction of the induction noise can be classified by the method of passive control and the method of active control. However, the passive control method has a demerit to reduce the effect of noise reduction at low frequency (below 500Hz) range and to be limited by a space of the engine room. Whereas, the active control method can overcome the demerit of passive control method. The algorithm of active control is mostly used the LMS (Least-Mean-Square) algorithm because the LMS algorithm can easily obtain the complex transfer function in real-time. Especially, Filtered-X LMS (FXLMS) algorithm is applied to an ANC system. However, the convergence performance of LMS algorithm goes bad when the FXLMS algorithm is applied to an active control of the induction noise under rapidly accelerated driving conditions. So, in order to this problem, the modified FXLMS algorithm was proposed. In this study, the performance of an active control using the LMS algorithm under rapidly accelerated driving conditions was evaluated through the theoretical derivation using a chirp signal to have similar characteristics with the induction noise signal and the computational simulation and the control performance of the induction noise under rapidly and suddenly accelerated driving conditions was improved using the modified FXLMS algorithm.

• 社団法人日本機械学会の論文
• 2004-03-15

著者

• Lee You

  Department of Oral Pathology and Medicine, Graduate School of Medicine and Dentistry, Okayama Univer

• LEE Chang-Hyo

  Department of Physics Hanyang University

• Oh J‐e

  Hanyang Univ. Ansan Kor

• Lee Choong-hwi

  Department Of Automotive Engineering Graduate School Hanyang University

• Lee Y‐y

  Hanyang Univ. Seoul Kor

• Oh Jae-eung

  Division Of Mechanical Engineering Hanyang University

• Oh Jae-eung

  School Of Mechanical Engineering Hanyang University

• JOE Yong-Goo

  Department of Automotive Engineering, Graduate School, Hanyang University

• OH Jae-Eung

  Han Yang University

• Lee You

  Department Of Automotive Engineering Graduate School Hanyang University

• Oh Jae-eung

  School Of Electrical And Computer Engineering Hanyang University

• Joe Yong-goo

  Department Of Automotive Engineering Graduate School Hanyang University

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