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. 19, 2025
Filed:
Jun. 14, 2017
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Inventor:
Akira Kiyomura, Isesaki, JP;
Assignee:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 18/00 (2006.01); G01D 3/08 (2006.01); G01D 5/12 (2006.01); G01D 5/20 (2006.01); G01M 15/04 (2006.01); G05B 23/02 (2006.01);
U.S. Cl.
CPC ...
G01D 18/00 (2013.01); G01D 3/08 (2013.01); G01D 5/12 (2013.01); G01M 15/042 (2013.01); G05B 23/0256 (2013.01); G01D 5/204 (2013.01);
Abstract
A diagnostic apparatus for a rotational angle sensor that outputs two correlated signals, corresponding to the rotational angle, obtains a reference value from the two correlated signals. Thereafter, the diagnostic apparatus for the rotational angle sensor diagnoses whether or not a failure has occurred in the rotational angle sensor based on whether or not a numerical value obtained from the two correlated signals is within a predetermined range including the reference value.