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CN115360797B - Method for automatic low power consumption of series battery system power supply - Google Patents

Method for automatic low power consumption of series battery system power supply Download PDF

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Publication number
CN115360797B
CN115360797B CN202211166585.5A CN202211166585A CN115360797B CN 115360797 B CN115360797 B CN 115360797B CN 202211166585 A CN202211166585 A CN 202211166585A CN 115360797 B CN115360797 B CN 115360797B
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Prior art keywords
charging
discharging
power supply
series battery
chip microcomputer
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CN202211166585.5A
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CN115360797A (en
Inventor
郑俊涛
杜楠
卢志军
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Shenzhen Youneng Electric Co ltd
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Shenzhen Youneng Electric Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306—Overdischarge protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明涉及一种串联电池系统电源自动低功耗的方法，方法包括步骤有：单片机由串联电池电压采集电路的信号变化判断串联电池处于充电、放电、不充不放电三种状态中的何种状态，当判断串联电池处于不充不放电状态时单片机控制微控电源自动低功耗，当判断串联电池处于充电或放电状态中单片机控制微控电源自动定时低功耗，当判断串联电池在充电或放电状态中，自动定时低功耗超时后，单片机控制微控电源正常待机。本申请通过软件的方法来配置本申请的微控电源，自动低功耗，相对于现有技术中的硬件方法更加的灵活，而且在实施过程中还能够通过单片机的学习优化参数。

The present invention relates to a method for automatically reducing power consumption of a power supply of a series battery system, the method comprising the steps of: a single chip microcomputer determines which state of the series battery is in the three states of charging, discharging, and neither charging nor discharging according to the signal change of the series battery voltage acquisition circuit; when it is determined that the series battery is in the neither charging nor discharging state, the single chip microcomputer controls the micro-controlled power supply to automatically reduce power consumption; when it is determined that the series battery is in the charging or discharging state, the single chip microcomputer controls the micro-controlled power supply to automatically reduce power consumption at a fixed time; when it is determined that the series battery is in the charging or discharging state, after the automatic timed low power consumption times out, the single chip microcomputer controls the micro-controlled power supply to normally standby. The present application configures the micro-controlled power supply of the present application through a software method, which automatically reduces power consumption, is more flexible than the hardware method in the prior art, and can also optimize parameters through learning of the single chip microcomputer during implementation.

Description

Method for automatically reducing power consumption of series battery system power supply
Technical Field
The invention relates to an automatic low-power consumption method for a series battery system power supply.
Background
In the prior art, the technology of battery system power management is relatively solidified, and most of the technologies manage the charge and discharge of the battery through the identification of pure hardware, for example, the voltage of the battery is identified through sampling a resistor in the management process, then the charge and discharge state of the battery is determined, and after the charge and discharge state of the battery is determined, the single low-power-consumption state management is carried out, in the management process, the technology does not distinguish the specific charge and discharge process of the battery because of the single low-power-consumption state management, in the charge and discharge process of the battery, in general, the battery is charged and discharged for a certain period of time, and in this process, the corresponding charge and discharge protection circuit is not required to be controlled to manage the battery, because the overcharge or overdischarge condition does not occur in this process, and in the single prior art, the single sampling resistor voltage is adopted to identify, so that the battery can not be flexibly controlled in the charge and discharge process, especially in the early stage of charge and discharge of the battery, and because the singlechip and the charge and discharge protection circuit in the prior art can also work under full load, relatively large electric power is consumed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an automatic low-power consumption method for a series battery system power supply.
The technical scheme adopted for solving the technical problems is as follows:
The automatic low-power consumption method of the serial battery system power supply is applied to micro-control power supply control of the serial battery system, the serial battery system comprises a singlechip, a charging protection circuit, a discharging protection circuit and a serial battery voltage acquisition circuit, wherein the singlechip is used for charging and discharging management, the singlechip is electrically connected with the charging protection circuit, the discharging protection circuit and the serial battery voltage acquisition circuit, the charging protection circuit is electrically connected with a charger end, the discharging protection circuit is electrically connected with a load end, and the serial battery voltage acquisition circuit is electrically connected with a serial battery trunk circuit; the method comprises the following steps: the single chip microcomputer judges which state of the three states of charging, discharging and non-charging and non-discharging is adopted by the serial battery voltage acquisition circuit, when the serial battery is judged to be in the non-charging and non-discharging state, the single chip microcomputer controls the micro-control power supply to automatically perform low power consumption, when the serial battery is judged to be in the charging or discharging state, the single chip microcomputer controls the micro-control power supply to automatically perform timing low power consumption, when the serial battery is judged to be in the charging or discharging state, and after the automatic timing low power consumption is overtime, the single chip microcomputer controls the micro-control power supply to normally stand by.
Further, the micro-control power supply is specifically a power supply circuit which is electrically connected with the singlechip, the charging protection circuit and the discharging protection circuit and supplies power for the singlechip, the charging protection circuit and the discharging protection circuit.
Further, the singlechip judges which state of three states of charging, discharging and not charging and not discharging is the serial battery according to the signal change of the serial battery voltage acquisition circuit, and specifically comprises the following steps: and when the voltage signal rising rate exceeds the threshold value, judging the charging state, when the voltage signal falling rate exceeds the threshold value, judging the discharging state, and otherwise, judging the charging state and the discharging state.
Further, the singlechip controls the micro-control power supply to automatically time and reduce the power consumption, specifically, when judging that the serial batteries are in a charging or discharging state, the singlechip acquires a voltage true value of the current serial batteries, returns an overcharging or overdischarging prediction time point from the voltage true value of the current serial batteries and the current time point, records a current time point t 1, records an overcharging or overdischarging prediction time point t 2, and the timing length of the automatic timing low power consumption is k (t 2-t1), wherein k is a dynamic adjustment coefficient and 0 < k < 1; the micro-control power supply automatically times the voltage of the standby state only to the singlechip in the low-power consumption state.
Further, the voltage true value of the current series battery and the current time point are returned to the overcharging or overdischarging prediction time point, firstly, the mapping relation between the voltage true value of the current series battery and the overcharging prediction time length and the overdischarging prediction time length is established through statistics in advance, the singlechip automatically records and learns the actual overcharging time length and the actual overdischarging time length in control, and the mapping relation is modified through the actual overcharging time length and the actual overdischarging time length.
Further, the singlechip automatically records the charge and discharge period of the serial batteries in control and modifies the value of k according to the charge and discharge period of the serial batteries.
Advantageous effects
According to the application, the current voltage of the series battery can be obtained by the singlechip in the charging and discharging process to return to the overcharging and overdischarging prediction time point, and then the state of low power consumption in timing is controlled based on the returned prediction time point. By the method, the micro-control power supply of the battery can be configured into a low-power consumption state in the battery charging and discharging process, particularly in the early stage of battery charging and discharging, so that the micro-control power supply is configured by a software method in practice, is automatic and low in power consumption, is more flexible than a hardware method in the prior art, and can optimize parameters through learning of a singlechip in the implementation process.
Drawings
FIG. 1 is a flow chart of a method for automatic low power consumption of a serial battery system power supply according to the present application.
Detailed Description
In specific implementation, the method for automatically reducing the power consumption of the power supply of the serial battery system is applied to micro-control power supply control of the serial battery system, the serial battery system comprises a singlechip for charge and discharge management, a charge protection circuit, a discharge protection circuit and a serial battery voltage acquisition circuit, wherein the singlechip is electrically connected with the charge protection circuit, the discharge protection circuit and the serial battery voltage acquisition circuit, the charge protection circuit is electrically connected with a charger end, the discharge protection circuit is electrically connected with a load end, and the serial battery voltage acquisition circuit is electrically connected with a serial battery trunk circuit; the micro-control power supply is specifically a power supply circuit which is electrically connected with the singlechip, the charging protection circuit and the discharging protection circuit and supplies power for the singlechip, the charging protection circuit and the discharging protection circuit.
The application relates to a method for automatically reducing power consumption of a series battery system power supply, as shown in figure 1, comprising the following steps: the single chip microcomputer judges which state of the three states of charging, discharging and non-charging and non-discharging is adopted by the serial battery voltage acquisition circuit, when the serial battery is judged to be in the non-charging and non-discharging state, the single chip microcomputer controls the micro-control power supply to automatically perform low power consumption, when the serial battery is judged to be in the charging or discharging state, the single chip microcomputer controls the micro-control power supply to automatically perform timing low power consumption, when the serial battery is judged to be in the charging or discharging state, and after the automatic timing low power consumption is overtime, the single chip microcomputer controls the micro-control power supply to normally stand by.
Preferably, the singlechip judges which state of three states of charging, discharging and not charging and not discharging is the serial battery according to the signal change of the serial battery voltage acquisition circuit, and specifically comprises the following steps: and when the voltage signal rising rate exceeds the threshold value, judging the charging state, when the voltage signal falling rate exceeds the threshold value, judging the discharging state, and otherwise, judging the charging state and the discharging state.
Preferably, the singlechip controls the micro-control power supply to automatically time and reduce the power consumption, specifically, when judging that the serial batteries are in a charging or discharging state, the singlechip acquires a voltage true value of the current serial batteries, returns an overcharging or overdischarging prediction time point from the voltage true value of the current serial batteries and the current time point, records a current time point t 1, records an overcharging or overdischarging prediction time point t 2, and the timing length of the automatic timing low power consumption is k (t 2-t1), wherein k is a dynamic adjustment coefficient and 0 < k < 1; the micro-control power supply automatically times the voltage of the standby state only to the singlechip in the low-power consumption state.
Preferably, the voltage true value of the current series battery and the current time point are returned to the overcharging or overdischarging prediction time point, firstly, the mapping relation between the voltage true value of the current series battery and the overcharging prediction time length and the overdischarging prediction time length is established in advance, the mapping relation is stored in the singlechip, the singlechip automatically records and learns the actual overcharging time length and the actual overdischarging time length in control, and the mapping relation is modified by the actual overcharging time length and the actual overdischarging time length.
Preferably, the singlechip automatically records the charge and discharge period of the serial batteries in control and modifies the value of k according to the charge and discharge period of the serial batteries, and the time length of the charge and discharge period of the battery in implementation can be gradually reduced, so that the singlechip is required to automatically record the charge and discharge period of the serial batteries in control and modify the value of k according to actual conditions.
In a specific implementation, the method for automatically reducing the power consumption of the serial battery system power supply comprises the following steps: firstly, a mapping relation between a voltage true value of a current series battery and an overcharge prediction time length and an overdischarge prediction time length is established in advance through statistics, an actual overcharge time length and an actual overdischarge time length are recorded and learned by a singlechip in control, and the mapping relation is modified by the actual overcharge time length and the actual overdischarge time length; the single chip microcomputer judges which state of three states of charging, discharging and non-charging and non-discharging is of the series battery according to the signal change of the series battery voltage acquisition circuit, when the voltage signal rising rate exceeds a threshold value, the state is judged to be the charging state, when the voltage signal falling rate exceeds the threshold value, the state is judged to be the discharging state, otherwise, the state is not the charging and non-discharging state; when the serial batteries are judged to be in a non-charge and non-discharge state, the singlechip controls the micro-control power supply to automatically perform timing and low power consumption, when the serial batteries are judged to be in a charge or discharge state, the singlechip acquires a voltage true value of the current serial batteries, the voltage true value of the current serial batteries and a current time point return to an overcharging or overdischarging prediction time point, then the current time point t 1 is recorded, the overcharging or overdischarging prediction time point t 2 is recorded, and the timing length of the automatic timing and low power consumption is k (t 2-t1), wherein k is a dynamic adjustment coefficient and 0 < k < 1; the micro-control power supply only provides voltage in standby state for the singlechip in the state of automatically timing low power consumption; when the serial batteries are judged to be in a charging or discharging state, the singlechip controls the micro-control power supply to stand by normally after the automatic timing low-power consumption is overtime.
According to the application, the current voltage of the series battery can be obtained by the singlechip in the charging and discharging process to return to the overcharging and overdischarging prediction time point, and then the state of low power consumption in timing is controlled based on the returned prediction time point. By the method, the micro-control power supply of the battery can be configured into a low-power consumption state in the battery charging and discharging process, particularly in the early stage of battery charging and discharging, so that the micro-control power supply is configured by a software method in practice, is automatic and low in power consumption, is more flexible than a hardware method in the prior art, and can optimize parameters through learning of a singlechip in the implementation process.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.

Claims (3)

1.串联电池系统电源自动低功耗的方法，其特征在于，串联电池系统电源自动低功耗的方法，应用于串联电池系统的微控电源控制，该串联电池系统包括用于充放电管理的单片机、充电保护电路、放电保护电路、串联电池电压采集电路，所述单片机与充电保护电路、放电保护电路、串联电池电压采集电路均电连接，所述充电保护电路与充电器端电连接，所述放电保护电路与负载端电连接，所述串联电池电压采集电路与串联电池主干路电连接；方法包括步骤有：单片机由串联电池电压采集电路的信号变化判断串联电池处于充电、放电、不充不放电三种状态中的何种状态，当判断串联电池处于不充不放电状态时单片机控制微控电源自动低功耗，当判断串联电池处于充电或放电状态中单片机控制微控电源自动定时低功耗，当判断串联电池在充电或放电状态中，自动定时低功耗超时后，单片机控制微控电源正常待机；单片机控制微控电源自动定时低功耗，具体为，当判断串联电池处于充电或放电状态中，单片机获取当前串联电池的电压真值，由当前串联电池的电压真值及当前时间点返回过充或过放预测时间点，然后记录当前时间点t1，记录过充或过放预测时间点t2，则自动定时低功耗的定时长度为k（t2-t1），其中k为动态调整系数且0＜k＜1；微控电源自动定时低功耗状态中电源仅仅向单片机提供待机状态的电压；由当前串联电池的电压真值及当前时间点返回过充或过放预测时间点中，首先提前统计建立当前串联电池的电压真值与过充预测时间长度、过放预测时间长度的映射关系，单片机在控制中自记录并学习实际的过充时间长度与实际过放时间长度并由实际的过充时间长度与实际过放时间长度对映射关系进行修改；微控电源具体为与单片机、充电保护电路、放电保护电路电连接并为单片机、充电保护电路、放电保护电路供电的电源电路。1. A method for automatically reducing power consumption of a power supply of a series battery system, characterized in that the method for automatically reducing power consumption of a power supply of a series battery system is applied to a micro-control power supply control of a series battery system, the series battery system comprises a single-chip microcomputer for charge and discharge management, a charging protection circuit, a discharging protection circuit, and a series battery voltage acquisition circuit, the single-chip microcomputer is electrically connected to the charging protection circuit, the discharging protection circuit, and the series battery voltage acquisition circuit, the charging protection circuit is electrically connected to the charger end, the discharging protection circuit is electrically connected to the load end, and the series battery voltage acquisition circuit is electrically connected to the series battery main line; the method comprises the steps of: the single-chip microcomputer determines the series battery voltage acquisition circuit according to the signal change of the series battery voltage acquisition circuit The battery is in which state among the three states of charging, discharging, and neither charging nor discharging. When it is judged that the series-connected batteries are in the state of neither charging nor discharging, the single-chip microcomputer controls the micro-controlled power supply to automatically reduce power consumption. When it is judged that the series-connected batteries are in the state of charging or discharging, the single-chip microcomputer controls the micro-controlled power supply to automatically reduce power consumption at a fixed time. When it is judged that the series-connected batteries are in the state of charging or discharging, after the automatic timed low power consumption times out, the single-chip microcomputer controls the micro-controlled power supply to standby normally. The single-chip microcomputer controls the micro-controlled power supply to automatically reduce power consumption at a fixed time. Specifically, when it is judged that the series-connected batteries are in the state of charging or discharging, the single-chip microcomputer obtains the true value of the voltage of the current series-connected batteries, returns the predicted time point of overcharging or over-discharging based on the true value of the voltage of the current series-connected batteries and the current time point, and then records the current time point t 1 , record the predicted time point t 2 of overcharge or overdischarge, then the timing length of automatic timing low power consumption is k (t 2 -t 1 ), where k is a dynamic adjustment coefficient and 0＜k＜1; in the automatic timing low power consumption state of the micro-control power supply, the power supply only provides the voltage of the standby state to the single-chip microcomputer; from the current voltage true value of the series battery and the current time point to return to the predicted time point of overcharge or overdischarge, firstly, the mapping relationship between the current voltage true value of the series battery and the overcharge predicted time length and the overdischarge predicted time length is statistically established in advance, and the single-chip microcomputer self-records and learns the actual overcharge time length and the actual overdischarge time length in the control and modifies the mapping relationship by the actual overcharge time length and the actual overdischarge time length; the micro-control power supply is specifically a power supply circuit electrically connected to the single-chip microcomputer, the charging protection circuit, and the discharging protection circuit and supplies power to the single-chip microcomputer, the charging protection circuit, and the discharging protection circuit. 2.根据权利要求1所述的串联电池系统电源自动低功耗的方法，其特征在于，单片机由串联电池电压采集电路的信号变化判断串联电池处于充电、放电、不充不放电三种状态中的何种状态，具体为：当电压信号升高速率超过阈值判断为充电状态，当电压信号降低速率超过阈值判断为放电状态，否则为不充不放电状态。2. The method for automatic low power consumption of a series battery system power supply according to claim 1 is characterized in that the single chip microcomputer determines which state the series battery is in based on the signal changes of the series battery voltage acquisition circuit: charging, discharging, and neither charging nor discharging. Specifically, when the voltage signal rising rate exceeds a threshold, it is judged to be in a charging state; when the voltage signal decreasing rate exceeds a threshold, it is judged to be in a discharging state; otherwise, it is in a neither charging nor discharging state. 3.根据权利要求1所述的串联电池系统电源自动低功耗的方法，其特征在于，单片机在控制中自记录串联电池的充放电周期并根据串联电池的充放电周期修改k的数值。3. The method for automatic low power consumption of a series battery system power supply according to claim 1 is characterized in that the single chip microcomputer self-records the charge and discharge cycle of the series battery during control and modifies the value of k according to the charge and discharge cycle of the series battery.
CN202211166585.5A 2022-09-23 2022-09-23 Method for automatic low power consumption of series battery system power supply Active CN115360797B (en)

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CN1667912A (en) * 2004-02-16 2005-09-14 精工电子有限公司 Battery state monitoring circuit and battery device
CN103746417A (en) * 2013-12-23 2014-04-23 中国科学院微电子研究所 Low-power-consumption control method and system of battery monitoring chip

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US4965738A (en) * 1988-05-03 1990-10-23 Anton/Bauer, Inc. Intelligent battery system
JP5544923B2 (en) * 2010-02-24 2014-07-09 セイコーエプソン株式会社 Protection circuit and electronic equipment
US20130049697A1 (en) * 2011-08-26 2013-02-28 Guoxing Li Battery protection integrated circuit architecture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1667912A (en) * 2004-02-16 2005-09-14 精工电子有限公司 Battery state monitoring circuit and battery device
CN103746417A (en) * 2013-12-23 2014-04-23 中国科学院微电子研究所 Low-power-consumption control method and system of battery monitoring chip

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