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. 18, 2015
Filed:
Sep. 03, 2012
Hiroyuki Wakatabe, Mie, JP;
Shinichi Sano, Mie, JP;
Katsura Mitani, Nara, JP;
SHIN-KOBE ELECTRIC MACHINERY CO., LTD., Tokyo, JP;
Abstract
Provided are a refresh charging method and a refresh charging apparatus for an assembled battery constituted from lead-acid storage batteries, by which a necessary charging rate may be performed while shortening a charging period. In a constant voltage charging mode, n intermediate threshold values Sto Swhich decrease stepwisely are set between a predetermined threshold value Sand a lower-limit current value, and n additional timer periods Tto Tare set where n is an integer equal to or larger than one. Counting of the n additional timer periods Tto Tis respectively started when the charging current reaches the n intermediate threshold values Sto S. A maximum timer period Tand the n additional timer periods Tto Tare set to satisfy a relationship of T>T> . . . >T. Charging is stopped when the counting of one of the maximum timer period Tand the n additional timer periods Tto Tis completed before the lower-limit current value is detected.