Method, system and terminal equipment for obtaining battery remaining discharge time

Abstract

The invention is applicable to the technical field of batteries, and discloses a method, device and terminal equipment for acquiring the remaining discharge time of batteries. The above method includes: obtaining the current discharge voltage of the battery and determining the current remaining capacity of the battery according to the current discharge voltage, determining the dischargeable capacity coefficient of the battery according to the dischargeable time of the battery and the Proctor's equation, and obtaining the theoretical dischargeable capacity of the battery according to the current discharge current of the battery Capacity coefficient, and determine the aging coefficient of the battery according to the measured dischargeable capacity coefficient and the theoretical dischargeable capacity coefficient, and finally determine the remaining discharge time of the battery according to the aging coefficient, current discharge current, current remaining capacity and dischargeable capacity coefficient. The above method can calculate the remaining discharge time of the battery relatively accurately, and is convenient for the staff to accurately monitor the state of the battery.

Description

technical field [0001] The invention belongs to the field of battery technology, and in particular relates to a method, system and terminal equipment for acquiring the remaining discharge time of a battery. Background technique [0002] The state of charge SOC of the battery is one of the important parameters to characterize the state of the battery. It can be used to reflect the available remaining capacity of the battery and provide a roughly accurate SOC algorithm. It can not only characterize the performance state of the battery, but also provide customers with more information. Display and status alarm to ensure load safety. [0003] Because the battery SOC is affected by various factors such as temperature, current, and voltage, and it is nonlinear, it is difficult to calculate the battery SOC accurately, so that the staff cannot accurately check the remaining capacity and time of the battery, and thus cannot accurately monitor the state of the battery. . [0004] Th...

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a method, system and terminal device for obtaining the remaining discharge time of the battery, so as to solve the problem that the staff cannot accurately check the remaining capacity and remaining time of the battery and cannot accurately monitor the battery due to inaccurate SOC calculation of the battery. the status of the problem

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