Vibration/noise control system including adaptive digital filter

Details Vibration/noise control system including adaptive digital filter Vibration/noise control system including adaptive digital filter

1997-03-17

1999-06-15

Wachsman, Hal Dodge

Boots, shoes, and leggings

364578, 36414801, 381 7111, 381 731, 381 941, 701111, G05B 1702

Patent

active

059128216

ABSTRACT:
A control system for controlling vibrations and noises generated by a vibration
oise source having at least a rotating member includes a first filter which generates a control signal for controlling the vibrations and noises. A self-expanding engine mount is arranged in a noise transmission path and converts the control signal into a driving signal for driving the noise source. An error sensor detects an error signal indicative of a difference between the driving signal and the vibrations and noises. A second filter stores a transfer characteristic of a portion of the noise transmission path extending between the first filter and the error sensor, and generates a reference signal based on the transfer characteristic. The control signal is updated in a manner such that the error signal is minimized. In addition, adaptive digital filters are provided for simulating both a dynamic characteristic of a physical system extending between the first filter and a predetermined control area and a dynamic characteristic of the portion of the transmission path extending between the first filter and the error sensor. The filter coefficients of the adaptive digital filters are updated in accordance with a genetic algorithm.

REFERENCES:
patent: 5295192 (1994-03-01), Hamada et al.
patent: 5377276 (1994-12-01), Terai et al.
patent: 5638305 (1997-06-01), Kobayashi et al.
patent: 5701349 (1997-12-01), Sano et al.
patent: 5761383 (1998-06-01), Engel et al.

Affiliated with

Also associated with

Rating

Vibration/noise control system including adaptive digital filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration/noise control system including adaptive digital filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration/noise control system including adaptive digital filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-406836