The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2019
Filed:
Jul. 31, 2014
Bridgestone Corporation, Tokyo, JP;
Takeshi Masago, Tokyo, JP;
BRIDGESTONE CORPORATION, Chuo-ku, Tokyo, JP;
Abstract
A method and an apparatus for estimating uneven wear in the tire shoulder with high accuracy using a fewer number of sensors are provided. An uneven tire wear estimating apparatus includes an acceleration sensor () disposed on an inner surface of a tire tread for measuring radial acceleration, an acceleration waveform extracting means () for extracting an acceleration waveform in a post-trailing-end domain from output signals of the acceleration sensor, means for calculating a vibration level α of an uneven wear measured band and a vibration level β of a reference band from the extracted acceleration waveform, an uneven wear determination index calculating means () for calculating an uneven wear determination index γ, which is an index for determining au uneven wear, from the vibration level α and the vibration level β, and a determining means () for determining whether an uneven wear is occurring in an edge of the tire shoulder from the value of the uneven wear determination index γ.