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:
Dec. 30, 2008
Filed:
Jan. 10, 2006
Shigeto Tamezane, Kakogawa, JP;
Kenshi Matsumoto, Kasai, JP;
Shigeto Tamezane, Kakogawa, JP;
Kenshi Matsumoto, Kasai, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A battery remaining capacity detection method calculates a remaining capacity of a battery having the possibility that a memory effect occurs by using correlation between an voltage Vand the remaining capacity. Correlation between a reset voltage Vthat is obtained by subtracting a value obtained by multiplying an occurrence amount Vbased on the memory effect by a memory effect occurrence amount correction value C(SOC) from an initial voltage Vand the remaining capacity is obtained, in the battery after use, based on correlation between the initial voltage Vand the remaining capacity. The remaining capacity is obtained by setting the voltage Vof the battery after use as the reset voltage V. This method provides precise battery detection without completely discharging.