BATTERY SIMULATION METHOD USING TWO-BRANCH EQUIVALENT CIRCUIT MODEL

Title:

BATTERY SIMULATION METHOD USING TWO-BRANCH EQUIVALENT CIRCUIT MODEL

Document Type and Number:

WIPO Patent Application WO/2022/225127

Kind Code:

A1

Abstract:

Provided is a battery simulation method performed by a computing device including a processor and a memory. The method comprises the steps of: selecting an equivalent circuit model of a battery including first and second branches; setting a capacity ratio of the first and second branches; receiving a current value; estimating a value of distribution current distributed to each branch; updating an SOC of each branch; determining an open circuit voltage value, a serial resistance value, a first parallel resistance value, a second parallel resistance value, a first capacitance, and a second capacitance of each branch; determining the value of a first voltage across a first parallel resistor of each branch and the value of a second voltage across a second parallel resistor; calculating a G parameter value and an H value of the battery; and calculating a value of an estimated voltage of the battery.

Inventors:

KIM JAKE (KR)
BAEK HO YUL (KR)
JANG YOO HONG (KR)
JOE YEONG BEOM (KR)
KANG MIN JEONG (KR)
AHN GI JANG (KR)
HWANG YONG JUN (KR)
LIM BYEONG HUI (KR)
KIM GI HEON (KR)

Application Number:

PCT/KR2021/018153

Publication Date:

October 27, 2022

Filing Date:

December 02, 2021

Export Citation:

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Assignee:

SAMSUNG SDI CO LTD (KR)

International Classes:

G01R31/367; G01R31/36; G01R31/389; G01R31/396

Foreign References:

KR20130139758A	2013-12-23
KR20190123172A	2019-10-31
KR20130134982A	2013-12-10
US20140244225A1	2014-08-28
US20130138369A1	2013-05-30
KR20200096938A	2020-08-14

Attorney, Agent or Firm:

Y.P.LEE, MOCK & PARTNERS (KR)

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