Prediction method and device of battery charging time, and battery management system
A battery charging and prediction method technology, which is applied in the direction of measuring devices, electric vehicle charging technology, charging stations, etc., can solve the problems of large charging time deviation and affecting the accuracy of charging time prediction value, etc.
Active Publication Date: 2019-08-09
GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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Problems solved by technology
[0003] In view of the fact that battery charging takes a certain amount of time, users need to know the charging time of the vehicle in advance in order to arrange charging plans reasonably according to the charging time. The current prediction scheme of battery charging current is mainly to calculate the charging time based on the current, but in actual use, the charging current is affected by Environmental temperature, power grid fluctuations, charging methods, thermal management and other factors affect the accuracy of the predicted charging time, resulting in a large deviation between the predicted charging time and the actual charging time
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[0088] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.
[0089] Those skilled in the art will understand that the singular forms "a", "an", "said" and "the" used herein may also include plural forms unless otherwise stated. It should be further understood that the word "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or combinations thereof.
[0090] Be...
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The invention relates to the technical field of energy storage equipment, in particular to a prediction method and device of the battery charging time, and a battery management system. The predictionmethod of the battery charging time comprises the steps that the current temperature of a battery is detected, and a temperature difference value between the current temperature and a set temperaturethreshold value is calculated; according to the temperature difference value, the temperature compensation time required in the process that the current temperature is changed to the set temperature threshold value is obtained; according to the charging power of the battery and the charging power of a charger, the basic time required by charging within the set temperature threshold value is determined; and the charging time of the battery charging process is determined, wherein the charging time comprises the temperature compensation time and the basic time. According to the prediction methodand device of the battery charging time, and the battery management system, the battery charging time is divided into the temperature compensation time and the basic time required by charging within the set temperature threshold value, and the estimation accuracy of the battery charging time can be improved.
Description
technical field [0001] The present application relates to the technical field of energy storage equipment, and in particular, the present application relates to a method, device, and battery management system for predicting battery charging time. Background technique [0002] As a new energy vehicle, electric vehicles are favored by more and more users due to their zero-pollution characteristics and price advantages. The power source of electric vehicles is mainly batteries, which need to be charged to store electric energy to power the motor. As a key factor affecting the mileage of electric vehicles, the battery charging time and charging efficiency have become the key concerns of users. [0003] In view of the fact that battery charging takes a certain amount of time, users need to know the charging time of the vehicle in advance in order to arrange charging plans reasonably according to the charging time. The current prediction scheme of battery charging current is mainl...
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IPC IPC(8): G01R31/385B60L53/60B60L53/62
CPCB60L53/60B60L53/62G01R31/385Y02T10/70Y02T10/7072Y02T90/12
Inventor 陶雷
Owner GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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