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:
May. 24, 2022
Filed:
Jun. 28, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Ho-Yun Chang, Daejeon, KR;
Sang-Jin Lee, Daejeon, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3842 (2019.01); G01R 31/367 (2019.01); G01R 31/374 (2019.01); G01K 13/00 (2021.01);
U.S. Cl.
CPC ...
G01R 31/3842 (2019.01); G01K 13/00 (2013.01); G01R 31/367 (2019.01); G01R 31/374 (2019.01);
Abstract
An apparatus and method for diagnosing whether a current sensor provided to a battery pack is normal. The apparatus includes: a voltage measuring unit configured to measure a both-end voltage of the cell assembly; a current measuring unit configured to measure a current flowing through the charging and discharging path; and a processor configured to diagnose the current sensor based on a change value of a voltage-based charged charge amount and a change value of a current-based charged charge amount.