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Title:
TIRE DEGRADATION ESTIMATING DEVICE, AND TIRE DEGRADATION ESTIMATING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/250517
Kind Code:
A1
Abstract:
A tire degradation estimating method according to an embodiment of the present invention enables a degree of degradation of a tire to be estimated, by comprising: a deformation speed measuring step (S11) of using a tire degradation estimating device disposed on an inner side surface of the tire to measure a tire deformation speed, which is the deformation speed of the tire when the tire is rotating, and obtaining a time-series variation of the tire deformation speed; a calculating step (S12) of calculating a peak value of the tire deformation speed from the time-series variation of the tire deformation speed; and an estimating step (S13) of estimating the degree of degradation of the tire using a first peak value, which is the peak value of the tire deformation speed before lead-in of the tire or after trail-out of the tire, in the time-series variation of the tire deformation speed.

Inventors:
FUDO HEISHIRO (JP)
SHINOHARA EIJI (JP)
ICHISE SHINYA (JP)
TOBARI HIROYUKI (JP)
YAMAMOTO AKIHITO (JP)
ONO YUKI (JP)
Application Number:
JP2020/010984
Publication Date:
December 17, 2020
Filing Date:
March 13, 2020
Export Citation:
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Assignee:
ALPS ALPINE CO LTD (JP)
International Classes:
G01M17/02; B60C19/00; H01L41/08; H01L41/113
Domestic Patent References:
WO2009008502A12009-01-15
Foreign References:
JP2011168211A2011-09-01
JP2009061917A2009-03-26
JP2005345238A2005-12-15
JP2016190615A2016-11-10
JP2014234038A2014-12-15
JP2012218682A2012-11-12
JP2006142991A2006-06-08
US20100131208A12010-05-27
Attorney, Agent or Firm:
OKUBO, Katsuyuki (JP)
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