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:
Oct. 08, 2024
Filed:
Dec. 14, 2022
Honda Motor Co., Ltd., Tokyo, JP;
Kazuki Chiba, Saitama, JP;
Toshiyuki Ariga, Saitama, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
A battery unit includes: a module including m cell groups that are connected in series and each include n cells connected in parallel; m voltage detectors; (m×(n−1)) heat flow detectors; a storage; and a state estimator. The storage stores a table map of OCV vs. SOC characteristics (A1) and a table map of HF vs. SOC characteristics (A2). For each of the m cell groups, the state estimator is configured to: determine, based on the (A2), a true SOC of (n−1) cells that corresponds to a heat flow detected; determine, based on the (A1), an OCV of the (n−1) cells that corresponds to the determined true SOC; calculates an OCV of a remaining cell from the determined OCV and a detected composite voltage; and determine, based on the (A1), a true SOC of the remaining cell that corresponds to the calculated OCV.