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:
Oct. 30, 2012
Filed:
Aug. 31, 2010
Yukio Nakao, Kobe, JP;
Mitsuhiro Wada, Kobe, JP;
Yukio Nakao, Kobe, JP;
Mitsuhiro Wada, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A vehicle estimate navigation apparatus including: a speed vector calculation means for calculating, based on GPS information by a GPS receiver mounted in a running vehicle, a speed vector of a running speed of the vehicle; a tire rotation information detection means for detecting rotation information of tires attached to the vehicle; a tire rotation speed calculation means for calculating rotation speeds of the tires based on tire rotation information obtained by the tire rotation information detection means; a speed calculation means for calculating a vehicle speed based on the speed vector information; a yaw rate calculation means for calculating a vehicle yaw rate based on the speed vector information; a first parameter calculation means for calculating a first parameter of a first relational expression between the vehicle speed calculated by the speed calculation means and the tire rotation speed, the vehicle speed being obtained based on a formula model for calculating a tire ground speed based on the tire rotation speeds obtained by the tire rotation speed calculation means; and a second parameter calculation means for calculating a second parameter of a second relational expression between the yaw rate calculated by the yaw rate calculation means and the tire rotation rate, the yaw rate being obtained based on a formula model for calculating a tire ground speed based on the tire rotation speeds obtained by the tire rotation speed calculation means.