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:
Jun. 13, 2000
Filed:
Oct. 07, 1998
Yoshiaki Kikuchi, Toyota, JP;
Fumihiko Asakawa, Toyota, JP;
Kazuo Tojima, Toyota, JP;
Susumu Ukita, Nagoya, JP;
Yoshimi Shoji, Takahama, JP;
Toshiaki Nakanishi, Toyohashi, JP;
Tadao Kimura, Kobe, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The charge and discharge are performed by a proper electric power corresponding to the service environment of a battery and the state of the battery. When the temperature of the battery is not more than a specified temperature, or not less than another specified temperature, the upper limit value Pin-s of the charging electric power and the upper limit value Pout-s of the discharging electric power are determined so as to be smaller than those at a normal temperature. The temperature of the battery is detected, and the charging electric power and the discharging electric power are determined so that they may be not more than the upper limit values Pin-s, Pout-s of the charging and the discharging electric power at this temperature, and the charge control of the battery is performed.