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:
Jul. 25, 2000
Filed:
Apr. 17, 1998
Yoichi Arai, Shizuoka-ken, JP;
Tsutomu Saigo, Shizuoka-ken, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A survivor capacity measuring apparatus for a battery is presented. The apparatus is constructed so as to determine whether or not the battery is deteriorated and indicates the result of this determination to a user. In the apparatus, a data read unit reads the current flowing from the battery to a load and the voltage of the battery. A survivor capacity calculation unit periodically collects the thus read current and voltage, detects the survivor capacity of the battery on the basis of the thus collected current and voltage, integrates the collected current, and determines the deterioration of the battery from a first survivor capacity of the battery before a predetermined amount has been reached and a second survivor capacity of the battery after the predetermined amount has been reached, when the integrated current has reached the predetermined amount.