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:
Nov. 20, 2018
Filed:
May. 28, 2014
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Hironori Sasaki, Tokyo, JP;
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
Abstract
Provided is a secondary battery system capable of suppressing degradation of a battery capacity. When it is determined that a battery pack is brought into a non-use state, a battery state detection unit in a battery controller compares an SOC of the battery pack calculated by a battery state operation unit and a standard SOC. When the SOC of the battery pack is higher than the standard SOC, the battery state detection unit in the battery controller calculates a capacity value in which the SOC of the battery pack becomes lower than the standard SOC, from a difference of the SOC of the battery pack and the standard SOC, and transmits the calculated capacity value to a cell controller. The cell controller discharges the battery pack, on the basis of the capacity value transmitted from the battery state detection unit.