公开(公告)号：US10317473B2

公开(公告)日：2019-06-11

申请号：US15220985

申请日：2016-07-27

Applicant: GM Global Technology Operations LLC

Inventor： Shuoqin Wang ,  Charles W. Wampler ,  Mark W. Verbrugge ,  Luan Vu

IPC: G01R31/36 ,  G01R31/367 ,  G01R31/374 ,  G01R35/00

Abstract: A number of illustrative variations may include a method, which may include obtaining terminal voltage data of a electrochemical device; determining an equivalent circuit model which operates in a manner approximating the terminal voltage data comprising an open circuit voltage VOC comprising a constant voltage source V0 and a voltage Vs across a capacitor Cs, in series with an overpotential circuit comprising an overpotential voltage V1; determining at least one of the power capabilities of the equivalent circuit model; and, estimating at least one of the power capabilities of the electrochemical device based upon the determined power capabilities of the equivalent circuit model.