タイヤの減圧の検出装置 - Sumitomo Rubber Industries, Ltd.

Title:

タイヤの減圧の検出装置

Document Type and Number:

Japanese Patent JP6969363

Kind Code:

B2

Abstract:

To provide a detection device which can accurately detect pressure reduction in a tire.SOLUTION: The detection device is provided that detects pressure reduction in a first tire included in a plurality of tires which are mounted on a vehicle. The detection device comprises: a resonant frequency calculation part which calculates a resonant frequency of a second tire using wheel speed information concerning the second tire included in the a plurality of tires; a relative pressure reduction amount calculation part which calculates a relative pressure reduction amount between the first tire and the second tire using wheel speed information concerning at least the first tire and the second tire; an absolute amount calculation part which calculates an absolute pressure reduction amount in the second tire using the resonant frequency of the second tire, and on the basis of the absolute pressure reduction amount in the second tire and the relative pressure reduction amount between the first tire and the second tire, calculates an absolute pressure reduction amount in the first tire; and a judgement part which judges whether a pressure of the first tire is reduced or not on the basis of the absolute pressure reduction amount in the first tire.SELECTED DRAWING: Figure 3

Inventors:

Yusuke Maeda

Application Number:

JP2017245921A

Publication Date:

November 24, 2021

Filing Date:

December 22, 2017

Export Citation:

Click for automatic bibliography generation Help