Method and apparatus for detecting uneven wear on tire

An apparatus for detecting uneven wear on a tire from an acceleration in a radial direction of a tire detected by an acceleration sensor, the apparatus comprising:

• an acceleration sensor disposed on an inner surface of a tire tread for measuring acceleration in the radial direction of the tire:
• an acceleration waveform extracting means for extracting an acceleration waveform in either one or both of a pre-leading-end region and a post-trailing-end region from output signals of the acceleration sensor;
• a frequency band value calculating means for calculating a frequency band value, which is a magnitude of acceleration in a specific frequency band, from the extracted acceleration waveform;
• a storage means for storing a reference frequency band value, which is a predetermined frequency band value of a normally worn tire free from uneven wear in an edge of a tire shoulder;
• and an uneven wear detecting means for detecting an uneven wear in the edge of the tire shoulder by comparing the calculated frequency band value against the reference frequency band value.