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A battery management system, its battery charge and discharge control method, and terminal equipment

A battery management system, charge and discharge control technology, applied in battery circuit devices, charge/discharge current/voltage regulation, collectors, etc., can solve the problems of severe fluctuations in battery pack temperature, high battery temperature, and affecting charge and discharge efficiency. Achieve the effects of improving charge and discharge efficiency, controlling battery temperature, and improving intelligence

Active Publication Date: 2021-08-13
江西猛犸能源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiments of the present invention provide a battery management system and its battery charge and discharge control method, and terminal equipment, to solve the current problems in the battery management system, which affect the charge and discharge efficiency and cause the battery temperature to be too high due to the severe fluctuation of the battery pack temperature. high problem

Method used

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  • A battery management system, its battery charge and discharge control method, and terminal equipment
  • A battery management system, its battery charge and discharge control method, and terminal equipment
  • A battery management system, its battery charge and discharge control method, and terminal equipment

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Embodiment 1

[0038] like figure 1 As shown, this embodiment provides a battery charge and discharge control method, which specifically includes:

[0039] Step S101: Obtain the charging and discharging start time of the battery.

[0040] In a specific application, by introducing the concepts of season, month, morning, afternoon, evening, etc., to determine the temperature change of the battery management system in the process of controlling the charge and discharge, so that the battery management system can adaptively adjust the charge and discharge parameters according to the temperature change , to realize the charge and discharge control of the battery.

[0041] In a specific application, by obtaining the charging and discharging start time of the battery in real time, the current season, month, time period (morning, afternoon or evening) and other time information are determined according to the charging and discharging start time.

[0042] In a specific application, the battery manag...

Embodiment 2

[0072] like image 3 As shown, in this embodiment, step S102 in Embodiment 1 specifically includes:

[0073] Step S201: Obtain historical temperature data.

[0074] In a specific application, a large amount of historical temperature data is obtained through various databases that record historical temperature, and the historical temperature data is stored in association with the corresponding time point.

[0075] Step S202: fitting the environmental temperature change curve according to the historical temperature data and the charging and discharging start time.

[0076] In the specific application, the historical temperature data is classified and summarized according to seasons, months, and time periods, and based on the historical temperature data, the historical temperature change trend curves in different periods of each month corresponding to each season are fitted. Exemplarily, based on the historical temperature data, the historical temperature change trend curve in ...

Embodiment 3

[0081] like Figure 4 As shown, in this embodiment, step S103 in Embodiment 1 specifically includes:

[0082] Step S301: Set the charging and discharging duration based on the environmental temperature change curve and the remaining battery power.

[0083] In a specific application, after determining the current remaining battery power, the corresponding charging and discharging time can be set according to the remaining battery power and the environmental temperature change curve.

[0084] In a specific application, the charging time required to fully charge the battery and the discharge time required to discharge the battery to zero remaining power are calculated from the remaining battery power, and the charging time and discharging time are adaptively adjusted according to the environmental temperature change curve. Specifically, if the ambient temperature gradually increases, the charging duration and discharging duration of the battery are increased, and if the ambient ...

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Abstract

The present invention is applicable to the field of battery technology, and provides a battery management system and its battery charge and discharge control method, and terminal equipment, including obtaining the charge and discharge start time of the battery; obtaining the environmental temperature change trend according to the charge and discharge start time; The trend sets the charge and discharge time and charge and discharge power curve; output the charge and discharge current according to the charge and discharge time and charge and discharge power curve, and control the charge and discharge of the battery based on the charge and discharge current. By introducing time parameters into the battery management system, determining the temperature change trend according to the start time of charge and discharge, and adjusting the charge and discharge power under the condition of temperature change trend, the charge and discharge efficiency can be effectively improved. By introducing historical data parameters, the intelligence of the battery management system can be improved. The degree of optimization can effectively control the battery temperature and avoid the violent fluctuation of the battery temperature, which solves the problem that the current battery management system has the problem that the charging and discharging efficiency is affected by the violent fluctuation of the battery pack temperature and the battery temperature is too high.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a battery management system, a battery charging and discharging control method thereof, and terminal equipment. Background technique [0002] A battery management system (Battery Management System, BMS) is a system that manages batteries, and usually has the function of measuring battery voltage to prevent (avoid) the occurrence of abnormal conditions such as battery overdischarge, overcharge, and battery temperature. At present, the core control strategy of the battery management system is mostly based on real-time traditional variables such as temperature, voltage, and current as the variable input of the system operation, and the system is controlled in real time based on a fixed function model. However, the management of the battery based on the fixed function model cannot be based on the environment. Adjusting the control strategy due to changes in the paramete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/0091H02J2007/0067H02J7/0063H02J7/007H02J7/00Y02E60/10
Inventor 邱志豪
Owner 江西猛犸能源有限公司
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