Abnormal noise correction verification apparatus
First Claim
1. An abnormal noise correction verification apparatus comprising:
- a vibration sensor configured to detect vibrations of a vehicle;
a signal extracting component configured to extract a signal in a specific frequency band of the vibrations detected from the vibration sensor;
a signal storing component configured to store the signal extracted from the vibration sensor; and
an outputting component configured to synchronize and separately output a pre-corrective action signal from the signal storing component, which is from before eliminating a cause of abnormal noise, and a post-corrective action signal, which is from after eliminating the cause of abnormal noise, in which both signals were detected under identical travel conditions by the vibration sensor.
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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.
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Citations
18 Claims
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1. An abnormal noise correction verification apparatus comprising:
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a vibration sensor configured to detect vibrations of a vehicle; a signal extracting component configured to extract a signal in a specific frequency band of the vibrations detected from the vibration sensor; a signal storing component configured to store the signal extracted from the vibration sensor; and an outputting component configured to synchronize and separately output a pre-corrective action signal from the signal storing component, which is from before eliminating a cause of abnormal noise, and a post-corrective action signal, which is from after eliminating the cause of abnormal noise, in which both signals were detected under identical travel conditions by the vibration sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An abnormal noise correction verification apparatus comprising:
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vibration sensing means for detecting vibrations of a vehicle; signal extracting means for extracting a signal in a specific frequency band of the vibrations detected from the vibration sensing means; signal storing means for storing the signal extracted from the vibration sensing means; and outputting means for synchronizing and separately outputting a pre-corrective action signal from the signal storing means, which is from before eliminating a cause of abnormal noise, and a post-corrective action signal, which is from after eliminating the cause of abnormal noise, in which both signals were detected under identical travel conditions by the vibration sensing means.
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17. An abnormal noise correction verifying method comprising:
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operating a vehicle under specified travel conditions; detecting vibrations of the vehicle during operation of the vehicle by using a vibration sensor that is attached to the vehicle; storing the vibrations detected by the vibration sensor during operation of the vehicle under the specified travel conditions as a pre-corrective action signal; investigating, based on the detected vibrations, whether the vehicle has an abnormal noise and a cause of the abnormal noise; performing a corrective action on the vehicle to eliminate the cause of the abnormal noise; operating the vehicle again under the specified travel conditions, after the corrective action was performed; detecting vibrations of the vehicle during operation of the vehicle after the corrective action was performed as a post-corrective action signal; and synchronizing and separately outputting the pre-corrective action signal and the post-corrective action signal. - View Dependent Claims (18)
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Specification