Method, device and apparatus for determining electric quantity of battery and storage medium

Abstract

The embodiment of the invention provides a method, device and apparatus for determining the electric quantity of a battery and a storage medium. The method comprises the steps that: the real-time voltage of a target battery is determined; if the target battery is in a discharge state, the residual electric quantity of the target battery is determined based on the real-time voltage and a target voltage / electric quantity mapping relationship, wherein the target voltage / target electric quantity mapping relationship is the mapping relationship between the voltage of the target battery and the residual electric quantity of the target battery; if the target battery is in a charging state, the actual voltage of the target battery is determined based on the real-time voltage and a target chargingvoltage / actual voltage mapping relationship, and the remaining electric quantity of the target battery is determined based on the actual voltage of the target battery and the target voltage / electric quantity mapping relationship, wherein the target charging voltage / actual voltage mapping relationship is the mapping relationship between the charging voltage of the target battery and the actual voltage of the target battery. With the method provided by the technical schemes of the embodiment of the invention adopted, the problem of inaccurate electric quantity calculation caused by voltage electric quantity curve difference during charging and discharging can be avoided.

Description

technical field [0001] The present invention relates to the technical field of batteries, in particular to a method, device, equipment and storage medium for determining battery power. Background technique [0002] Lithium batteries have many advantages such as high energy, long service life, high rated voltage, low self-discharge rate, and light weight, and have been widely used in various electronic devices. The power calculation of lithium batteries is the basis of battery power management, how to determine the power of lithium batteries has become the focus of attention. [0003] In one technical solution, the remaining power of the battery is obtained through the voltage and power curve of the open circuit voltage of the battery corresponding to the state of charge (State Of Charge, SOC). However, in this technical solution, the voltage and electricity curves vary greatly during charging and discharging, such as figure 1 As shown, under the same battery voltage, the S...

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Problems solved by technology

[0005] Embodiments of the present invention provide a method, device, device, and storage medium for determining battery power, which are used to solve the problem of inaccurate power calculation due to differences in voltage and power curves during charging and discharging

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