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. 07, 1998
Filed:
Dec. 11, 1996
Hiromichi Kuno, Aichi-Ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A battery charger and method for terminating charging at a designated time. After terminating first-stage constant-current charging by a first charging current, the charging is paused for to the designated charging termination time minus a second-stage constant-current charging duration. After the termination of the standby duration, second-stage constant-current charging is started and terminated at the charging termination time. The battery is not excessively charged but warmed up by heat generated by the battery itself at a stage close to the end of charging. When the standby duration is long, the second-stage constant-current charging duration is corrected according to the battery temperature or the temperature of the surrounding atmosphere. The invention can be applied to a charging method other than the two-stage constant-current charging.