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:
Jul. 14, 2026
Filed:
Mar. 31, 2022
Vehicle Energy Japan Inc., Hitachinaka, JP;
Tomoyuki Arima, Hitachinaka, JP;
VEHICLE ENERGY JAPAN INC., Hitachinaka, JP;
Abstract
A battery system monitoring device removes a first noise contained in a voltage of a group of single cells which are connected in series based on a first time constant, and removes a second noise contained in a series voltage between the positive electrode of the highest single cell and the negative electrode of the lowest single cell based on a second time constant. A total voltage is calculated by totaling the voltage of the single cells where the first noise has been removed. The series voltage where the second noise has been removed is measured. Based on the calculated total voltage and the measured series voltage, a determination regarding whether or not to permit a diagnosis of a state of the group of single cells is made. The diagnosis is executed in response to a determination that the diagnosis may be performed.