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:
Mar. 30, 2021
Filed:
Apr. 11, 2017
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Inventors:
Assignee:
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3842 (2019.01); H02M 7/48 (2007.01); B60L 58/13 (2019.01); H02M 7/537 (2006.01); H02P 23/00 (2016.01);
U.S. Cl.
CPC ...
G01R 31/3842 (2019.01); B60L 58/13 (2019.02); H02M 7/48 (2013.01); H02M 7/537 (2013.01); H02P 23/0004 (2013.01);
Abstract
To carry out diagnosis of a current sensor while maintaining high reliability. An inverter control device according to the present invention controls an inverter circuit, calculates an estimated direct current value on the basis of a duty value and an alternating current sensor value output by an alternating current sensor, and performs diagnosis of a direct current sensor on the basis of the estimated direct current value and a direct current sensor value output by the direct current sensor.