Patent ID: 9042569
Filing Date: 2015-05-26
Classification: G10K

Abstract:
1. An active noise control apparatus, comprising: a vibration detector that detects a composite vibration in a vibration transmission path in which both a vibration of a rotary body caused on account of generation or transmission of a drive force of a vehicle and a vibration of a wheel generated on account of a contact between the wheel and a road surface are transmitted; a first base signal generator that generates a first base signal that defines a standard waveform of a canceling sound for a vibration noise in a vehicle interior based on the composite vibration detected by the vibration detector; a second base signal generator that removes a component of the canceling sound for a vibration noise of the rotary body from the first base signal to generate a second base signal that defines a standard waveform of the canceling sound for a vibration noise of the wheel; a control signal generator that applies adaptive control processing to the second base signal for reducing an error between the vibration noise in the vehicle interior and the canceling sound to generate a control signal; a canceling sound output unit that outputs the canceling sound based on the control signal; and an error detector that detects a residual noise indicating the error between the vibration noise in the vehicle interior and the canceling sound and outputs an error signal corresponding to the residual noise, wherein the second base signal generator includes: