Abnormal noise correction verification apparatus

An abnormal noise correction verification apparatus comprising:

• 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 store 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.

An abnormal noise correction verifying method comprising:

• 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.