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:
May. 22, 2018
Filed:
Feb. 05, 2015
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Toshihiro Wada, Chiyoda-ku, JP;
Hisatoshi Fukumoto, Chiyoda-ku, JP;
Hiroto Nishiguchi, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-ku, JP;
Abstract
This invention is concerning a device including a current calculator that calculates remaining capacity difference current on the basis of a first remaining battery capacity reflected on open-circuit voltage of a battery and a second remaining battery capacity not reflected on the open-circuit voltage, a first remaining capacity estimator that estimates the first remaining battery capacity on the basis of a value produced by removing the remaining capacity difference current from the current value of the battery and the inter-terminal voltage of the battery, a second remaining capacity calculator that calculates the second remaining battery capacity by adding up the remaining capacity difference current, and an adder that obtains a remaining battery capacity of the battery by adding the estimate of the first remaining battery capacity and the calculation value of the second remaining battery capacity. The current calculator calculates the remaining capacity difference current so that the first remaining battery capacity and the second remaining battery capacity have a prescribed potential difference.