Method, device and equipment for determining remaining capacity of battery and storage medium

Abstract

The embodiment of the invention discloses a method and device for determining the remaining capacity of a battery, equipment and a storage medium. The method comprises the following steps: according to an open circuit voltage (OCV) curve corresponding to a battery in a vehicle and an initial voltage of the battery, determining an initial residual electric quantity SOC of the battery; when it is detected that the battery is in the discharging state, determining the current SOC of the battery based on the initial SOC and an ampere-hour integral method; when the collected discharge current exceeds a preset current threshold value, correcting the current SOC according to a difference value between the current SOC and a first SOC corresponding to the current voltage of the battery in a discharge SOC curve corresponding to the battery to obtain a corrected SOC; and displaying the corrected SOC through an instrument in the vehicle. According to the technical scheme provided by the embodiment of the invention, the current remaining capacity is corrected, so that the determined remaining capacity of the battery in the vehicle is more accurate, and the precision of the remaining capacity is improved.

Description

technical field [0001] The embodiments of the present invention relate to the field of computer technology, and in particular, to a method, device, device, and storage medium for determining the remaining battery power. Background technique [0002] Because electric vehicles conform to today's energy-saving and environmental protection trends, and are convenient for short-distance transportation, can save energy and protect the environment, electric vehicles have been widely used. During the use of the electric vehicle, it is very necessary to display the remaining power of the electric vehicle in time. [0003] At present, many electric vehicles on the market use lead-acid batteries. At this stage, the determination of the state of charge (SOC) of the lead-acid battery is usually based on the instrument directly collecting the battery voltage to display the SOC in intervals, resulting in low accuracy of the determined SOC and in During the riding process, it fluctuates bac...

AI Technical Summary

Problems solved by technology

[0003] At present, many electric vehicles on the market use lead-acid batteries. At this stage, the determination of the state of charge (SOC) of the lead-acid battery is usually based on the instrument directly collecting the battery voltage to display the SOC in intervals, resulting in low accuracy of the determined SOC and in During the ride, it fluctuates back and forth, and often runs out of power, and there will be a situation of no power halfway

In addition, when the actual remaining power cannot be known, it is easy to cause power loss storage and affect the service life of the battery

[0004] There is currently no better way to determine the remaining battery power

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