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:
Nov. 10, 2015
Filed:
Feb. 14, 2012
Keigo Suzuki, Kanagawa, JP;
Masaki Hiei, Kanagawa, JP;
Keigo Suzuki, Kanagawa, JP;
Masaki Hiei, Kanagawa, JP;
MIKUNI CORPORATION, Tokyo, JP;
Abstract
A rotation angle detection device capable of obtaining a detection result in a wider angle range with high accuracy. The rotation angle detection device is provided with a part to be detected which is attached to a throttle shaft S by a rotor, and a Hall IC which detects magnetic flux components of the part to be detected. The Hall IC is provided with a magnetism collecting plate which is disposed facing the part to be detected and extends along the rotation surface of the part to be detected, and Hall elements which detect the magnetic flux components of the part to be detected, and output a signal corresponding to the rotation position of the throttle shaft S on the basis of the results of the detection by the Hall elements. The Hall elements each detect a magnetic flux component in an X-axis direction passing through the rotation axis of the throttle shaft S. The Hall elements each detect a magnetic flux component in the Y-axis direction passing through the rotation axis of the throttle shaft S. The part to be detected is configured by combining a semicircular yoke with a semiannular magnet.