Title:
METHOD, SYSTEM AND PROGRAM FOR CALCULATING TIRE WEAR PERFORMANCE VALUE
Document Type and Number:
Japanese Patent JP2023082749
Kind Code:
A
Abstract:
To provide a method for calculating a tire wear performance value in consideration of variation of loads acting on a tire.SOLUTION: A plurality of pieces of measurement data having acceleration in two directions of a longitudinal direction and a lateral direction of a vehicle is obtained, and a plurality of travelling modes constituted of combinations of sections in the two directions is set. The plurality of pieces of measurement data is sorted into any travelling modes of the plurality of travelling modes and frequencies of the travelling modes are calculated based on the number of the measurement data sorted into the travelling modes respectively and the number of all measurement data. For the travelling modes, first friction energy is obtained from acceleration in the longitudinal direction, acceleration in the lateral direction and loads during rest. First and second load correction amounts are calculated based on the acceleration in the longitudinal and lateral directions. The first friction energy is corrected to be converted into second friction energy on the basis of the first and second load correction amounts and the loads during rest. A tire wear performance value is calculated based on the second friction energy in the travelling modes and the frequencies of the modes.SELECTED DRAWING: Figure 2
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Inventors:
NAKAMOTO SATOSHI
Application Number:
JP2021196647A
Publication Date:
June 15, 2023
Filing Date:
December 03, 2021
Export Citation:
Assignee:
TOYO TIRE CORP
International Classes:
B60C19/00; B60C11/24; G01M17/02
Attorney, Agent or Firm:
Patent Attorney Corporation Junias International Patent Office