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. 20, 2016
Filed:
Feb. 08, 2013
Tadahiro Yoshida, Kanagawa, JP;
Tadahiro Yoshida, Kanagawa, JP;
NEC ENERGY DEVICES, LTD., Sagamihara-shi, Kanagawa, JP;
Abstract
A battery control unit () controls charge and discharge of battery cells () on the basis of temperatures measured by a temperature measurement unit () and voltages measured by the voltage and current measurement unit (). In addition, the battery control unit () specifies a lowest temperature cell having the lowest temperature and a highest temperature cell having the highest temperature on the basis of the temperatures measured by the temperature measurement unit (), when a current is greater than 0. In addition, the battery control unit () performs balance control for equalizing voltages of all the battery cells (), on the basis of the voltages measured by the voltage and current measurement unit (), when a first temperature condition in which a temperature difference ΔT between the highest temperature cell and the lowest temperature cell is equal to or greater than a reference value Tis not satisfied. On the other hand, when the temperature difference ΔT satisfies the first temperature condition, the battery control unit () does not perform the balance control.