Abnormal noise correction verification apparatus

Details Abnormal noise correction verification apparatus Abnormal noise correction verification apparatus

2007-01-19

2009-02-17

Le, John H (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C702S056000, C702S183000

Reexamination Certificate

active

07493238

ABSTRACT:
An abnormal noise correction verification apparatus is provided that can easily verify the effectiveness a corrective action with respect to an abnormal noise being generated. The apparatus has at least one vibration sensor, which detect vibrations of the vehicle. The apparatus extracts a signal in a specific frequency band for the vibrations detected from the vibration sensor. The apparatus stores a pre-corrective action signal extracted from the vibration sensor, which is from before eliminating a cause of abnormal noise, and a post-corrective action signal extracted from the vibration sensor, which is from after eliminating the cause of abnormal noise. Both pre-corrective action signal and the post-corrective action signal were detected under identical travel conditions by the vibration sensor. The apparatus then synchronizes and separately outputs the pre-corrective action signal and the post-corrective action signal for comparison.

REFERENCES:
patent: 7184930 (2007-02-01), Miyasaka et al.
patent: 2004/0222696 (2004-11-01), Kamiya et al.
patent: 2007/0032968 (2007-02-01), Nakamura
patent: H05-312635 (1993-11-01), None
patent: H10-019660 (1998-01-01), None

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