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Patent Searching and Data


Title:
SIMULATED BATTERY CONSTRUCTION METHOD AND SIMULATED BATTERY CONSTRUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/131958
Kind Code:
A1
Abstract:
Provided is a device that aims to improve the reproduction precision, of a simulated battery, for secondary battery characteristics under a variety of conditions. Parameters (n0, n1, n2) are stipulated for a secondary battery model, for each different temperature T (n1), for each different degree of deterioration D (n2). Values for the parameters (n0, n1, n2) are identified for the secondary battery model, on the basis of measurement results for complex impedance Z for a secondary battery 220. The secondary battery model expresses internal resistance impedance for the secondary battery 220, using transfer functions indicating an IIR system and an FIR system, respectively. In addition, a voltage command value Vcmd (t) is calculated for when a current command value Icmd (t) is entered to the secondary battery model, in accordance with an identifier ID (m), a temperature T (m1), and a deterioration D (m2) for a virtual secondary battery simulated using a simulated battery 20; and a voltage V (t) corresponding to the voltage command value Vcmd (t) is applied to a specified device 200 or its load, by the simulated battery 20.

Inventors:
MUNAKATA ICHIRO (JP)
SHOJI HIDEKI (JP)
Application Number:
PCT/JP2020/046938
Publication Date:
July 01, 2021
Filing Date:
December 16, 2020
Export Citation:
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Assignee:
TOYO SYSTEM CO LTD (JP)
International Classes:
H01M10/48; G01R31/367; G01R31/389; G01R31/392; H02J7/00
Foreign References:
JP2011122917A2011-06-23
JP2013160613A2013-08-19
JP2012220199A2012-11-12
JP2016176924A2016-10-06
JPS5370344A1978-06-22
US20140372054A12014-12-18
JPS5924617B21984-06-11
Other References:
See also references of EP 3896776A4
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
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