The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 19, 2021

Filed:

Jun. 30, 2017
Applicant:

Contemporary Amperex Technology Co., Limited, Ningde, CN;

Inventors:

Ang Zhao, Ningde, CN;

Yong Cheng, Ningde, CN;

Xiaojun Yang, Ningde, CN;

Jiming Du, Ningde, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 58/12 (2019.01); G01R 31/382 (2019.01); G01R 31/67 (2020.01); G01R 31/387 (2019.01); B60W 20/13 (2016.01); G01R 31/367 (2019.01); B60L 11/18 (2006.01);
U.S. Cl.
CPC ...
B60L 58/12 (2019.02); B60L 11/1861 (2013.01); B60W 20/13 (2016.01); G01R 31/367 (2019.01); G01R 31/382 (2019.01); G01R 31/387 (2019.01);
Abstract

Embodiments of the present invention provide a method and a device for detecting SOC of a battery. The method for detecting SOC of a battery includes: determining an initial SOC value of the battery according to a waiting time of the battery; calculating a current SOC value of the battery based on the initial SOC value and a current working current of the battery, denoting as a first SOC value. In embodiments of the present invention, the current of the battery is real-time measured and the SOC value of the battery is calculated by accumulating the current of the battery, in addition, the initial SOC value is calibrated by the waiting time, so that the error of the SOC detection result is reduced, thereby increasing accuracy of the SOC detection result.


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