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:
Dec. 31, 2024
Filed:
Jan. 11, 2023
Honda Motor Co., Ltd., Tokyo, JP;
Toru Yagasaki, Tokyo, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
A tire slip state determination method includes: detecting rotation fluctuations of a power transmission member and a wheel body of a wheel; determining, based on an amplitude ratio of a rotation fluctuation amplitude of the wheel body to a rotation fluctuation amplitude of the power transmission member and a phase delay of the rotation fluctuation of the wheel body relative to the rotation fluctuation of the power transmission member, whether a vibration mode of the wheel body and the tire is an elastic slip mode or a sliding slip mode; and determining that the tire is in the sliding slip state when the vibration mode is the sliding slip mode. The amplitude ratio and the phase delay are calculated by using, as a tire driving radius, an effective rolling radius in a region in which a relationship between a dynamic load radius and the effective rolling radius is linear.