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. 04, 2026
Filed:
Dec. 22, 2021
Vehicle Energy Japan Inc., Ibaraki, JP;
Hironori Sasaki, Ibaraki, JP;
VEHICLE ENERGY JAPAN INC., Ibaraki, JP;
Abstract
A battery control device (an assembled battery control unit) has a degraded battery state estimation unit, a storage unit, and an upper limit voltage estimation unit. The degraded battery state estimation unitestimates a first degraded state of a battery on the basis of at least any one of a use history, a capacity retention rate, and an internal resistance increase rate of the battery and estimates a second degraded state of constituent elements inside the battery with respect to each type of the battery. The storage unitstores information regarding an upper limit voltage of chargeable electric power with respect to each temperature of the battery. The upper limit voltage estimation unit estimates the upper limit voltage of the chargeable electric power of the battery on the basis of the above-described information. The upper limit voltage estimation unitupdates the above-described information on the basis of the first degraded state and the second degraded state.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile