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. 04, 2016
Filed:
Jun. 01, 2012
Ichiro Mukaitani, Tokyo, JP;
Takashi Kofuse, Tokyo, JP;
Mitsuyoshi Kanoh, Tokyo, JP;
Shinya Mizusugi, Tokyo, JP;
Yasuhiro Shibata, Tokyo, JP;
Ichiro Mukaitani, Tokyo, JP;
Takashi Kofuse, Tokyo, JP;
Mitsuyoshi Kanoh, Tokyo, JP;
Shinya Mizusugi, Tokyo, JP;
Yasuhiro Shibata, Tokyo, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
A battery-state monitoring system capable of efficiently estimating the state and service life of each storage battery at high precision by automatically measuring or acquiring various parameters of a plurality of storage batteries constantly connected to an equipment is provided. The system monitors a state of each of a plurality of batteries connected in series and constituting an assembled battery incorporated in an equipment includes a power supply control device that detects a current flowing through each battery; and an end device that measures a temperature, a voltage, and internal resistance of each battery, the internal resistance being measured by using at least two or more kinds of frequencies, and degradation of each battery is estimated based on one or more temperature, voltage, and internal resistance.