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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.:

US 11630156 B1

PDFFull Text
Date of Patent:
Apr. 18, 2023

Filed:

Jul. 10, 2020

Battery monitoring apparatus

Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Masakatsu Horiguchi, Kariya, JP;

Masaaki Kitagawa, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:

Oliff PLC

Primary Examiner:

Vincent Q Nguyen

Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 31/36 (2020.01); G01R 31/382 (2019.01); G01R 31/389 (2019.01); G01R 31/392 (2019.01); H01M 10/48 (2006.01); G01R 27/02 (2006.01); H02J 7/00 (2006.01); G01R 31/396 (2019.01);
U.S. Cl.
CPC ...
G01R 31/3648 (2013.01); G01R 27/02 (2013.01); G01R 31/382 (2019.01); G01R 31/389 (2019.01); G01R 31/392 (2019.01); G01R 31/396 (2019.01); H01M 10/482 (2013.01); H02J 7/0013 (2013.01); H02J 7/0047 (2013.01); H01M 2220/20 (2013.01);
Abstract

A battery monitoring apparatus includes an electric power supply terminal connected with a first electrical path, a voltage input terminal connected with a second electrical path, a signal control unit connected with a third electrical path, a response signal input terminal connected with a fourth electrical path, and a calculating unit. The signal control unit is configured to cause a predetermined AC signal to be outputted from a storage battery with the storage battery itself being an electric power source for the output of the predetermined AC signal. The calculating unit is configured to calculate, based on a response signal of the storage battery to the predetermined AC signal, a complex impedance of the storage battery. Moreover, at least one of the first to the fourth electrical paths is merged with at least one of the other electrical paths into an electrical path that is connected to the storage battery.

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