A system and method for accurately estimating engine noise at a virtual microphone location, such as an occupant's ear position, in an acoustic space in order to enhance performance of an Engine Order Cancellation (EOC) system is provided. A set of weights and transfer functions that are dependent on various vehicle parameters, such as frequency, load, and speed, may be employed to estimate noise at a position where there are no physical microphones present. The accurate estimation of engine noise at virtual location, such as an occupant's ear position, may be achieved using a frequency dependent weighted sum of filtered and unfiltered error signals measured at microphones mounted at various locations inside an acoustic space, such as a vehicle cabin, which may not be located near virtual location.
VIRTUAL LOCATION NOISE SIGNAL ESTIMATION FOR ENGINE ORDER CANCELLATION
SCHÄTZUNG EINES RAUSCHSIGNALS AN EINEM VIRTUELLEN STANDORT FÜR ENGINE-ORDER-GERÄUSCHUNTERDRÜCKUNG
ESTIMATION DE SIGNAL DE BRUIT D'UN EMPLACEMENT VIRTUEL POUR ANNULATION DE BRUIT DE ROTATION DU MOTEUR
2023-06-28
Patent
Electronic Resource
English
Virtual location noise signal estimation for engine order cancellation
European Patent Office | 2021
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