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. 16, 1997
Filed:
Jul. 03, 1996
Itaru Kanazawa, Kanagawa-ken, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A battery capacity meter for a battery includes a controller, a display unit for displaying a present dischargeable absolute capacity of the battery and a display light for displaying a condition of the battery under which the present dischargeable absolute capacity of the battery amounts to a maximum of chargeable absolute capacity of the battery. The present dischargeable absolute capacity and the maximum of chargeable absolute capacity of the battery are calculated on a basis of a charging or discharging current and a temperature of the battery. Since the battery capacity meter can display both of the present dischargeable absolute capacity and the maximum of chargeable absolute capacity under the temperature of the battery at charging, it is possible for a driver to confirm the chargeable absolute capacity as a residual capacity of the battery during using it. Moreover, at charging, it is possible to confirm a condition under which the charging has been completed to the maximum of chargeable capacity determined by the battery temperature at that time thereby to prevent a shortage for the full-charging.