Title:
SOC CALCULATION METHOD, CONTROL CIRCUIT AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/245973
Kind Code:
A1
Abstract:
An SOC calculation method, a control circuit, an electronic device and a storage medium. The method comprises: acquiring a cell voltage of a battery module in a discharge state (S101); when the cell voltage is less than or equal to a preset voltage, acquiring a discharge parameter of the battery module (S102), wherein the preset voltage is greater than an under-voltage protection voltage of a battery; acquiring a first voltage difference between the preset voltage and the cell voltage (S103); calculating a correction coefficient of an SOC according to the first voltage difference and the discharge parameter, wherein the correction coefficient is positively correlated with the discharge parameter, and is inversely correlated with the cell voltage (S104); and calculating the value of the SOC according to a rated full-load capacity of the battery module, the discharge parameter and the correction coefficient (S105).
Inventors:
ZHAN JUNCHENG (CN)
CHEN XI (CN)
CHEN XI (CN)
Application Number:
PCT/CN2022/132655
Publication Date:
December 28, 2023
Filing Date:
November 17, 2022
Export Citation:
Assignee:
ECOFLOW INC (CN)
International Classes:
G01R31/3842; G01R31/3828; G01R31/396
Foreign References:
| CN115166542A | 2022-10-11 | |||
| CN111289902A | 2020-06-16 | |||
| JP2020092593A | 2020-06-11 | |||
| CN112909362A | 2021-06-04 | |||
| CN112014751A | 2020-12-01 | |||
| CN113300436A | 2021-08-24 | |||
| CN111337839A | 2020-06-26 | |||
| CN111913111A | 2020-11-10 | |||
| JP2000014019A | 2000-01-14 |
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