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:
Nov. 24, 2009
Filed:
Feb. 06, 2006
Youhei Kawahara, Hitachi, JP;
Akihiko Emori, Hitachi, JP;
Shuko Yamauchi, Hitachi, JP;
Hirotaka Takahashi, Hitachi, JP;
Masami Shida, Mito, JP;
Akihiko Kudo, Hitachinaka, JP;
Youhei Kawahara, Hitachi, JP;
Akihiko Emori, Hitachi, JP;
Shuko Yamauchi, Hitachi, JP;
Hirotaka Takahashi, Hitachi, JP;
Masami Shida, Mito, JP;
Akihiko Kudo, Hitachinaka, JP;
Hitachi Vehicle Energy, Ltd., Hitachinaka-shi, JP;
Abstract
In a status detector for a power supply, a power supply, and an initial characteristic extracting device for use with the power supply, a measuring unit obtains measured values of at least current, voltage and temperature of the electricity accumulating unit. A processing unit executes status detection of the electricity accumulating unit by using the measured values and the characteristic information of the electricity accumulating unit which is stored in a memory unit. A discrepancy detecting unit detects the presence of a discrepancy away from a theoretical value when a result of the status detection is changed over a predetermined threshold or reversed with respect to the measured values. A modifying unit modifies the characteristic information depending on the detected discrepancy.