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:
Apr. 30, 2013
Filed:
Aug. 07, 2009
Tomoya Kikuchi, Aichi, JP;
Harumi Murochi, Aichi, JP;
Yasuyuki Yoshihara, Aichi, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An object of this invention is to simultaneously resolve a decline in capacity due to undercharging of, and degradation due to overcharging of, a lead-acid battery, which occur as a result of random charging. A method of controlling a lead-acid battery of this invention is characterized in that a first region extending until an accumulated discharged capacity Dat which a theoretical discharged capacity is the maximum value Dis reached, and a subsequent second region in which the accumulated discharged capacity Dis exceeded, are set, and in that a value Robtained by dividing an accumulated charged capacity Cby the accumulated discharged capacity Din the first region is made to be larger than a value Robtained by dividing an accumulated charged capacity Cby an accumulated discharged capacity Din the second region.