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:
Feb. 10, 2009
Filed:
Jan. 04, 2006
Kenshi Matsumoto, Kasai, JP;
Shigeto Tamezane, Takasago, JP;
Kenshi Matsumoto, Kasai, JP;
Shigeto Tamezane, Takasago, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A method of controlling battery current limit values, the method controls maximum charging and discharging current values according to the state of charge of the battery. The method of controlling current limits integrates battery charging and discharging current to compute a first state of charge, determines first charging and discharging current limit value candidates from that first state of charge, computes a second state of charge based on battery voltage, and determines second charging and discharging current limit value candidates from that second state of charge. Further, the method takes the smaller of the first and second charging and discharging current limit value candidates as the charging and discharging current limit values for charging and discharging the battery.