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.

Date of Patent:
Apr. 08, 2025

Filed:

Feb. 02, 2022
Applicant:

Aisin Corporation, Aichi, JP;

Inventor:

Subrata Saha, Kariya, JP;

Assignee:

AISIN CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/08 (2006.01); H02M 1/32 (2007.01); H02M 7/5395 (2006.01); H02P 25/22 (2006.01); H02P 29/028 (2016.01);
U.S. Cl.
CPC ...
H02P 27/08 (2013.01); H02M 1/325 (2021.05); H02M 7/5395 (2013.01); H02P 25/22 (2013.01); H02P 29/028 (2013.01);
Abstract

When a difference between a first wave height value of a current flowing through a first direct-current power supply and a second wave height value of a current flowing through a second direct-current power supply is greater than or equal to a determination threshold value and the first wave height value is larger than the second wave height value, a control part in a rotating electrical machine control system determines that a first smoothing capacitor has an open-circuit failure, and when a difference between the first wave height value and the second wave height value is greater than or equal to the determination threshold value and the second wave height value is larger than the first wave height value, the control part determines that a second smoothing capacitor has an open-circuit failure.


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