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Method, device and system for estimating residual available energy of battery and storage medium

A battery and energy technology, applied in the direction of measuring devices, measuring electrical variables, measuring electricity, etc., can solve the problem of being unable to accurately estimate the remaining available energy of the battery, and achieve the effect of improving accuracy

Active Publication Date: 2020-04-07
컨템포러리엠퍼렉스테크놀로지씨오리미티드
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for a battery system with hysteresis characteristics, the historical working conditions and historical states of the battery will affect the state of the remaining available energy, resulting in the inability to accurately estimate the remaining available energy of the battery

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  • Method, device and system for estimating residual available energy of battery and storage medium
  • Method, device and system for estimating residual available energy of battery and storage medium
  • Method, device and system for estimating residual available energy of battery and storage medium

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Embodiment Construction

[0026] The features and exemplary embodiments of each aspect of the present invention will be described in detail below. In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention, and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessa...

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Abstract

The invention discloses a method, a device and a system for estimating residual available energy of a battery, and a storage medium. The method comprises the following steps: determining a current state-of-charge value and a current battery temperature of a battery; acquiring working condition operation data of the battery; and processing the working condition operation data of the battery to obtain a hysteresis coefficient of the battery so as to estimate the residual available energy of the battery according to the corresponding relationship between the residual available energy of the battery and the state of charge, the battery temperature and the hysteresis coefficient. According to the method provided by the embodiment of the invention, the accuracy of estimating the residual available energy of the battery with hysteretic characteristics is improved.

Description

Technical field [0001] The present invention relates to the field of battery technology, and in particular to a method, device, system and storage medium for estimating the remaining available energy of a battery. Background technique [0002] In the battery management system of an electric vehicle, the remaining available energy (State OF Energy, SOE) of the battery is used to reflect the remaining available energy state of the battery. Because the remaining available energy state of the battery has a strong correlation with the cruising range of electric vehicles, accurate estimation of the remaining available energy can improve the accuracy of the cruising range estimation, provide the driver with an accurate itinerary reference, and effectively prevent the entire vehicle from being caused by insufficient power. anchor. [0003] Currently, the most widely used method for estimating the remaining available energy is to calibrate the available energy of the battery at different s...

Claims

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Application Information

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IPC IPC(8): G01R31/382G01R31/396
CPCG01R31/382G01R31/396
Inventor 汤慎之杜明树李世超阮见卢艳华
Owner 컨템포러리엠퍼렉스테크놀로지씨오리미티드