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, 2020
Filed:
Dec. 16, 2014
Denso Corporation, Kariya, Aichi-pref., JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
A velocity estimation device including an acceleration sensor and a yaw rate sensor is provided. The velocity estimation device determines an initial velocity value of a mobile object based on a velocity estimation expression, an integrated value of acceleration detected by the acceleration sensor, and a relative azimuth calculated from detected yaw rates. The velocity estimation device estimates the velocity of the mobile object based on the initial velocity value and the integrated value of acceleration. In the velocity estimation expression, a magnitude of the velocity vector is constrained by the velocity of the mobile object and a time variation of a direction of the velocity vector is constrained by a time variation of the azimuth of the mobile object in the traveling direction.