Title:
バッテリー等価回路モデルのパラメータ推定方法、装置及び記録媒体
Document Type and Number:
Japanese Patent JP6848143
Kind Code:
B2
Abstract:
Disclosed is a method and apparatus for estimating parameters of a battery equivalent circuit model. The battery equivalent circuit model includes a first resistor, a second resistor and a capacitor. The method according to an embodiment of the present disclosure includes reading a pulse discharge profile corresponding to a parameter estimation condition from a plurality of pre-stored pulse discharge profiles, wherein the pulse discharge profile includes a first number of terminal voltages sequentially measured from a battery having a specific SOC in a predetermined cycle while the battery is discharged with a specific constant current from an OCV corresponding to the specific SOC to a lower limit of discharge voltage at a specific temperature, extracting a second number of terminal voltages between the OCV and a threshold voltage from the first number of terminal voltages, and estimating a resistance value of the first resistor and a resistance value of the second resistor based on the OCV, the constant current and the second number of terminal voltages.
Inventors:
Kim, Yong-Jin
Cha, Seung-young
Cha, Seung-young
Application Number:
JP2019555938A
Publication Date:
March 24, 2021
Filing Date:
October 11, 2018
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
G01R31/367; H01G13/00; H01M10/44; H01M10/48; H02J7/00
Domestic Patent References:
| JP2003157912A | ||||
| JP2017067790A |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation