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:
Aug. 09, 2016
Filed:
Feb. 10, 2011
Applicant:
Daigo Fujii, Susono, JP;
Inventor:
Daigo Fujii, Susono, JP;
Assignee:
TOYOTA JIDOSHA KABUSHISKI KAISHA, Toyota-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C 23/06 (2006.01); G01M 17/02 (2006.01);
U.S. Cl.
CPC ...
B60C 23/062 (2013.01); G01M 17/021 (2013.01);
Abstract
A tire state judging device includes wheel speed sensors configured to detect rotational speeds of tires, and a control unit configured to perform frequency-analysis of detection results of the wheel speed sensors to detect a frequency of a valley part of an output, and calculate an air pressure of the tire from the detected frequency of the valley part. According to this, the tire state judging device has an effect that this can detect a state of the tire irrespective of a state of a road surface.