Liping Luo

US Patent:

20090058633, Mar 5, 2009

Filed:

Aug 31, 2007

Appl. No.:

11/848853

Inventors:

Liping Luo - Marietta GA, US
Yoshio Nakamura - Osaka, JP
Daizo Ando - West Bloomfield MI, US

Assignee:

MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. - Osaka

International Classification:

G08B 1/08

US Classification:

34053812

Abstract:

A notch filter adaptation system for use with an active noise control system of a motor vehicle has a parameters determination module receiving data from a bus of a vehicle and employing the data to determine one or more parameters for a notch filter. The data can include vehicle type, tire diameter, tire cavity, and/or ambient temperature. The parameters can include one or more notch filter peak frequency values, one or more notch filter Q values, and/or modifications of predetermined peak frequency values and/or Q values. An active noise control module can employ the parameters to generate opposite phase noise in the vehicle according to one or more notch filters having frequency bands at least in part specified by the parameters.