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. 03, 2022
Filed:
May. 05, 2020
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); B60L 50/60 (2019.01); B60L 58/10 (2019.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0047 (2013.01); B60L 50/66 (2019.02); B60L 58/10 (2019.02); H01M 10/425 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01);
Abstract
A battery system includes a battery pack including a plurality of cells, and an ECU. The ECU calculates a current distribution in each cell using a ladder circuit network model, the ladder circuit network model being obtained by geometrically modeling an interior of the cell using a plurality of resistance elements and a plurality of power storage elements. The ECU calculates the current distribution in the cell by applying, to the ladder circuit network model, a resistance distribution in the cell calculated based on a salt concentration distribution in the cell.