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:
Aug. 26, 2025
Filed:
Aug. 10, 2022
Honda Motor Co., Ltd., Tokyo, JP;
Kazuki Chiba, Saitama, JP;
Masahiro Ohta, Saitama, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
The battery unit includes: a battery module including a battery cell; a battery heat flow detector configured to detect a heat flow of the battery cell; a storage configured to store heat flow HF vs. state of charge SOC initial characteristics of the battery cell; and a battery state estimator configured to estimate a state of health SOH of the battery cell. The battery state estimator measures, during charge of the battery cell, HF vs. SOC present characteristics of the battery cell, based on the detected heat flow of the battery cell, and estimates a state of health SOH of the battery cell, from a ratio between a length mAh of a line segment between peaks of differential characteristics of the measured HF vs. SOC present characteristics and a length mAh of a line segment between peaks of differential characteristics of the stored HF vs. SOC initial characteristics.