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. 21, 2019
Filed:
Sep. 27, 2013
Calsonic Kansei Corporation, Saitama-shi, Saitama, JP;
Keio University, Minato-ku, Tokyo, JP;
Kyoto University, Kyoto-shi, Kyoto, JP;
CALSONIC KANSEI CORPORATION, Saitama-shi, Saitama, JP;
KEIO UNIVERSITY, Minato-ku, Tokyo, JP;
KYOTO UNIVERSITY, Kyoto-shi, Kyoto, JP;
Abstract
A device for estimating parameters of battery capable of improving, by using simple calculations, estimation accuracy of a parameter and the like of a battery equivalent circuit model will be provided. The device for estimating parameters of battery for estimating the parameter of a battery () includes: a battery equivalent circuit model (A) including resistance and a capacitor as the parameter; a logarithmic conversion parameter value estimation unit (B) for sequentially estimating, by using a logarithmic conversion parameter value serving as a state variable obtained by carrying out logarithmic conversion on the parameter, the logarithmic conversion parameter value with a Kalman filter () from a state equation and an output equation, based on a charging/discharging current and a terminal voltage those being detected; and an inverse logarithmic conversion unit (C) for obtaining, from the logarithmic conversion parameter value, an estimated parameter value serving as an antilogarithm corresponding to the logarithmic conversion parameter value.