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:
Feb. 24, 2015

Filed:

Oct. 24, 2013
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Youngchang Jo, Daejeon, KR;

Kiwook Jang, Daejeon, KR;

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/36 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3648 (2013.01); G01R 31/362 (2013.01); H02J 7/0052 (2013.01); G01R 31/361 (2013.01); G01R 31/3679 (2013.01); G01R 31/3606 (2013.01); G01R 31/3651 (2013.01);
Abstract

Provided are battery SOC estimating apparatus and method. The battery SOC estimating apparatus according to the present invention includes a first SOC calculating unit which applies a predetermined parameter to calculate a first state of charge (SOC) of a battery; one or more second SOC calculating units which individually apply different parameters to calculate one or more second SOCs of the battery; and an optimal parameter extracting unit which confirms a second SOC which is the closest to an actual SOC of the battery from one or more second SOCs to extract a parameter which is applied to the second SOC which is the closest to the actual SOC as an optimal parameter, in which the first SOC calculating unit applies the optimal parameter to calculate a final SOC of the battery.


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