Title: Method for compensating state of charge of battery, battery management system and hybrid vehicle
Application Number: 200610170026 Application Date: 2006.12.22
Publication Number: 1988242 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01M10/42;G01R31/36;H01M10/44;H01M10/48;G06Q90/00;B60L11/18
Applicant(s) Name: Samsung SDI Co., Ltd. Address:
Inventor(s) Name: Lim Gye-jong;Yun Han-seok;Seo Se-wook
Attorney & Agent: luyi songzhi qiang
Abstract:
    In an SOC compensation method, a first SOC having at least two sections is detected, and a first OCV corresponding to the first SOC is calculated; a second OCV is calculated by using the measured pack current and voltage, and an internal resistance, and a second SOC corresponding to the second OCV is calculated; when a difference between the first and second OCVs is greater than a first reference, a first compensation value corresponding to the first SOC among at least two first compensation values corresponding to the two sections is used to compensate the first SOC; and when a difference between the first and second OCVs is less than a second reference, a second compensation value corresponding to the first SOC among at least two second compensation values corresponding to the two sections is used to compensate the first SOC value.
Time: 14