Verfahren, Vorrichtung und Programm zum Erkennen eines Reifens mit verringertem Luftdruck

Details

Veröffentlichungs-Nr.

EP2583843

Aktenzeichen

EP12172678

Anmeldetag

20. Juni 2012

Veröffentlichung

14. Mai 2014

Erteilung

14. Mai 2014

Rechtsraum

EP

IPC

B60C23/06

Abstract

A method for detecting a tire having a decreased air pressure based on wheel rotation information to be obtained from the tire attached to a vehicle in which there is a predetermined difference between a front wheel load and a rear wheel load. The method includes a step of acquiring the wheel rotation information to be obtained from the tire, a step of storing the wheel rotation information, a step of acquiring a load sensitivity of a tire dynamic loaded radius due to a load shift during a turning, a step of acquiring a speed dependency of the load sensitivity, a step of comparing a load sensitivity of a tire dynamic loaded radius at a speed acquired based on the speed dependency with preliminarily stored load sensitivities of dynamic loaded radiuses of various tires, a step of estimating a decreased pressure sensitivity of the tire dynamic loaded radius based on a result of the comparison, and a step of determining that the tire has a decreased air pressure based on a result of the estimation. The speed dependency is acquired from a change of a front and rear wheel speed ratio.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete