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1. WO2016151624 - ACTIVE VIBRATION NOISE CONTROL APPARATUS

Publication Number WO/2016/151624
Publication Date 29.09.2016
International Application No. PCT/JP2015/001646
International Filing Date 24.03.2015
IPC
G10K 11/178 2006.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
B60R 11/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
11Arrangements for holding or mounting articles, not otherwise provided for
02for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
CPC
G10K 11/178
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
G10K 11/17825
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
1781characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
17821characterised by the analysis of the input signals only
17825Error signals
G10K 11/17854
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
1785Methods, e.g. algorithms; Devices
17853of the filter, e.g. leakage tuning
17854the filter being an adaptive filter
G10K 11/17883
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
1787General system configurations
17879using both a reference signal and an error signal
17883the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
G10K 2210/121
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
2210Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
10Applications
121Rotating machines, e.g. engines, turbines, motors; Periodic or quasi-periodic signals in general
G10K 2210/1282
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
2210Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
10Applications
128Vehicles
1282Automobiles
Applicants
  • 三菱電機株式会社 MITSUBISHI ELECTRIC CORPORATION [JP]/[JP]
Inventors
  • 矢野 敦仁 YANO, Atsuyoshi
Agents
  • 稲葉 忠彦 INABA, Tadahiko
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ACTIVE VIBRATION NOISE CONTROL APPARATUS
(FR) APPAREIL DE CONTRÔLE ACTIF DE BRUIT DE VIBRATION
(JA) 能動振動騒音制御装置
Abstract
(EN)
The present invention is provided with: a control signal generation unit 120 for generating a control signal on the basis of a cosine wave signal and a sine wave signal which have as the frequency thereof a control frequency specified in accordance with a vibration noise source; and a correction value updating unit for updating a correction value so as to be a value by which the signal power of an error signal is reduced, the updating performed on the basis of the relationship between: the increase or decrease in the signal power of such error signal which was obtained from residual vibration noise that remains as a result of interference noise generated on the basis of the control signal and propagated through a secondary path interfering with vibration noise emanating from the vibration noise source; and the increase or decrease in the correction value used for the correction of the control frequency.
(FR)
La présente invention comprend : une unité de génération de signal de commande (120) conçue pour générer un signal de commande sur la base d'un signal d'onde cosinusoïdale et d'un signal d'onde sinusoïdale qui ont pour fréquence une fréquence de commande spécifiée en fonction d'une source de bruit de vibration ; et une unité de mise à jour de valeur de correction conçue pour mettre à jour une valeur de correction de manière à ce qu'elle permette de réduire la puissance d'un signal d'erreur, la mise à jour étant effectuée sur la base de la relation entre : l'augmentation ou la diminution de la puissance du signal d'erreur qui a été obtenu à partir du bruit de vibration résiduel qui reste suite à un bruit d'interférence généré sur la base du signal de commande et propagé par un chemin secondaire en interférence avec un bruit de vibration provenant de la source de bruit de vibration ; et l'augmentation ou la diminution de la valeur de correction utilisée pour la correction de la fréquence de commande.
(JA)
 振動騒音源に応じて特定される制御周波数を周波数とする余弦波信号および正弦波信号に基づいて制御信号を生成する制御信号生成部120と、制御信号に基づいて生成され二次経路を伝播した干渉音が振動騒音源から発する振動騒音に干渉して残る残存振動騒音から得られる誤差信号の信号パワーの増減と、制御周波数の補正に用いられる補正値の増減との関係に基づいて、誤差信号の信号パワーを減少する値に前記補正値を更新する補正値更新部と、を備えた。
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