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. 07, 2013
Filed:
Apr. 20, 2007
Noritaka Koguchi, Kanagawa, JP;
Naoshi Miyashita, Kanagawa, JP;
Jun Matsuda, Kanagawa, JP;
Tsuyoshi Kitazaki, Kanagawa, JP;
Noritaka Koguchi, Kanagawa, JP;
Naoshi Miyashita, Kanagawa, JP;
Jun Matsuda, Kanagawa, JP;
Tsuyoshi Kitazaki, Kanagawa, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
A method of calculating deflection of a rotating tire, through high speed data processing, based on measurement time series data of acceleration on a tire tread portion has the following steps. A step of acquiring measurement time series data of acceleration on a tire circumference in a radial direction of a rotating tire; a step of extracting acceleration data in a vicinity of a contact region from the acquired measurement data and subjecting the extracted acceleration data to least-square regression using a second-order differential function expression of a deflection function expression that represents a peak shape having a peak value and a curve gradually approaching to zero on both sides thereof, whereby a deflection function parameter values are determined; and a step of calculating a contact deflection from the deflection function expression determined by the deflection function parameter values.