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. 04, 2009
Filed:
Aug. 19, 2004
Hiroshi Morinaga, Tokyo, JP;
Hiroshi Morinaga, Tokyo, JP;
Kabushiki Kaisha Bridgestone, Tokyo, JP;
Abstract
In order to accurately and stably estimate the conditions of a running tire, a vehicle is equipped with a sensor-incorporating tire having, at an equal distance from the center in the axial direction of the tire, pressure sensors (A,B) buried in a tread rubber positioned on the outer side in the radial direction of the tire belt layer of a tire tread portion and on the inner sides in the radial direction of tread blocks, the contact length Lof the car body side and the contact length Lof the opposite side of the center in the axial direction of the tire are detected by using the duration times of pressure values from the pressure sensors (A,B) and a wheel speed from a wheel speed sensor (), and the ratio R=L/Lof the contact length Lto the contact length Lis computed to estimate lateral force generated by the tire, or the average contact length Lwhich is the average value of the contact lengths Land Lis computed to determine a load applied to the tire.