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Patent Searching and Data


Title:
ESTIMATION DEVICE, ESTIMATION PROGRAM, AND CHARGING CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/029849
Kind Code:
A1
Abstract:
The estimation device according to the present invention is provided with: a calculation unit for estimating the charging rate and a predicted terminal voltage of a chargeable cell through use of a Kalman filter which uses a model function of the open circuit voltage and the charging rate of the cell, and calculating the difference between the predicted terminal voltage and the actual measured value of the terminal voltage of the cell; and a correction unit for correcting the Kalman gain of the Kalman filter in accordance with the rate of change of the open circuit voltage with respect to the charging rate in the model function and correcting the estimated charging rate on the basis of the corrected Kalman gain and the difference.

Inventors:
IKEDA KAZUTO (JP)
Application Number:
PCT/JP2016/073741
Publication Date:
February 15, 2018
Filing Date:
August 12, 2016
Export Citation:
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Assignee:
FUJITSU LTD (JP)
International Classes:
G01R31/36; H01M10/48; H02J7/00
Domestic Patent References:
WO2016031191A12016-03-03
Foreign References:
JP2006284431A2006-10-19
Attorney, Agent or Firm:
KATAYAMA, Shuhei (JP)
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