CN116587921A

CN116587921A - Battery control method, device, battery management system and storage medium

Info

Publication number: CN116587921A
Application number: CN202310534664.5A
Authority: CN
Inventors: 刘宇
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-08-15

Abstract

The application relates to a battery control method, a device, a battery management system, a storage medium and a computer program product, which can acquire the discharge parameter of a target battery in real time under the condition of entering a dormant running state, compare and analyze the discharge parameter with a preset wake-up parameter condition, and reversely wake up a main control device of the battery management system under the condition that the discharge parameter meets the preset wake-up parameter condition, so that the main control device can timely carry out power compensation control on the target battery under the wake-up state, and ensure the residual electric quantity of the target battery. According to the scheme, in the dormant state, the main control device of the battery management system does not need to wake up periodically to supplement power for the target battery, but wakes up the main control device to execute power supplementing operation under the condition that the discharging parameter meets the preset wake-up parameter condition, so that the charge and discharge cycle times of the target battery in the dormant state are slowed down to a certain extent, and the service life of the target battery is prolonged.

Description

Battery control method, device, battery management system and storage medium

Technical Field

The present application relates to the field of battery technology, and in particular, to a battery control method, apparatus, battery management system, storage medium, and computer program product.

Background

Along with the rapid development of new energy technology, the power battery is widely applied to electric equipment such as electric automobiles, intelligent electronic products and the like due to the advantages of environmental protection and long service life. The power battery is generally provided with a battery management system (Battery Management System, BMS) for managing and monitoring charging and discharging, and the power battery enters a dormant state when the electric equipment has no electricity consumption requirement.

In the sleep State, a control unit for periodically waking up the BMS is generally required, and the power consumption is calculated according to the collected main loop current, so that State-of-Charge (SOC) adjustment is performed, and the power battery maintains high SOC accuracy in the sleep State. However, this approach can lead to frequent charging and discharging of the power battery, severely affecting the battery life.

Disclosure of Invention

Based on this, it is necessary to provide a battery control method, apparatus, battery management system, storage medium, and computer program product to alleviate the problem of low service life of a power battery due to frequent charge and discharge in a sleep state.

In a first aspect, the present application provides a battery control method, including: under the condition of entering a dormant running state, acquiring the discharge parameters of the target battery in real time; and under the condition that the discharge parameter meets the preset wake-up parameter condition, sending a wake-up signal to a main control device of the battery management system to wake up the main control device.

According to the battery control method, under the condition that the battery enters the dormant running state, the discharging parameters of the target battery can be obtained in real time and compared and analyzed with the preset wake-up parameter conditions, and under the condition that the discharging parameters meet the preset wake-up parameter conditions, the main control device of the battery management system is reversely awakened, so that the main control device can timely conduct power compensation control on the target battery under the wake-up state, and the residual electric quantity of the target battery is guaranteed. According to the scheme, in the dormant state, the main control device of the battery management system does not need to wake up periodically to supplement power for the target battery, but wakes up the main control device to execute power supplementing operation under the condition that the discharging parameter meets the preset wake-up parameter condition, so that the charge and discharge cycle times of the target battery in the dormant state are slowed down to a certain extent, and the service life of the target battery is prolonged.

In some embodiments, before the step of obtaining the discharge parameter of the target battery in real time under the condition of entering the sleep operation state, the method further includes: and under the condition that the sleep signal is received, entering a sleep running state.

According to the scheme, the monitoring processing device enters the sleep running state through the sleep signal sent by the main control device, interaction between the monitoring processing device and the electric equipment is not needed, the data processing amount of the monitoring processing device is reduced, and the running reliability of the monitoring processing device is guaranteed.

In some embodiments, the entering the sleep state of operation includes: and controlling the switch switching device to conduct the connection with the target battery, and simultaneously controlling the switch device to disconnect the connection between the target battery and the electric equipment.

According to the scheme, the control of the sleep running state is realized by arranging the switch switching device, and the control method has the advantages of high control precision and quick sleep response.

In some embodiments, the controlling the switch switching device to conduct the connection with the target battery while controlling the switch device to disconnect the target battery from the powered device includes: and controlling a second switching device connected with the monitoring processing device and the electric equipment to be turned off, and controlling a first switching device connected with the second switching device, the target battery and the monitoring processing device to be turned on.

According to the scheme, the two switching devices are adopted to build the switching device, and the switching of the running state is realized by controlling the on and off of the two switching devices, so that the control reliability is high, and the running reliability of the battery management system can be effectively improved.

In some embodiments, the entering the sleep state further comprises: and controlling the target battery to discharge at a current smaller than a preset threshold value through the body diode of the second switching device.

According to the scheme, the monitoring processing device controls the body diode of the second switching device to discharge outwards, and misuse blind charge monitoring of the target battery can be achieved by monitoring the discharge current at the body diode, so that misuse blind charge of the target battery is avoided, and the service life of the target battery is guaranteed.

In some embodiments, the discharge parameter comprises a discharge current; the discharging parameter meets the preset wake-up parameter condition, and the discharging parameter comprises the following steps: and under the condition that the discharge current is greater than or equal to a preset current threshold value, determining that the discharge parameter meets the preset wake-up parameter condition.

According to the scheme, under the condition that the discharge current is greater than or equal to the preset current threshold value, the main control device can be awakened reversely, so that the main control device outputs prompt information to remind fault investigation, and the operation safety of the target battery can be effectively ensured.

In some embodiments, in a case that the discharge parameter satisfies the preset wake-up parameter condition, the method further includes: and controlling a switch switching device to conduct connection between the target battery and the electric equipment.

According to the scheme, when the target battery is subjected to heavy current discharge, the connection between the target battery and the electric equipment can be conducted in time, so that the heavy current is prevented from burning the body diode of the second switching device, and the operation safety and stability of the battery management system are ensured.

In some embodiments, the discharge parameter comprises a discharge capacity; the discharging parameter meets the preset wake-up parameter condition, and the discharging parameter comprises the following steps: and under the condition that the discharge electric quantity is larger than or equal to a preset discharge electric quantity, determining that the discharge parameter meets the preset wake-up parameter condition.

According to the scheme, under the condition that the discharge electric quantity is larger than or equal to the preset discharge electric quantity, the main control device can be reversely awakened, so that the main control device controls the charging device to supplement electricity for the target battery, and the residual electric quantity of the target battery is ensured.

In some embodiments, the determining the preset wake-up parameter condition includes: and acquiring wake-up parameter conditions sent by the main control device when receiving the sleep instruction as preset wake-up parameter conditions.

According to the scheme, when the sleep operation state is needed, the monitoring processing device can acquire the corresponding required preset wake-up parameter condition from the main control device, so that the preset wake-up parameter condition is ensured to be matched with the operation of the current target battery, and the control reliability is improved.

In a second aspect, the present application provides a battery control device comprising: the discharging parameter acquisition module is used for acquiring the discharging parameters of the target battery in real time under the condition of entering the dormant running state; the wake-up analysis module is used for determining whether the discharge parameters meet preset wake-up parameter conditions; and the wake-up control module is used for sending a wake-up signal to a main control device of the battery management system to wake up the main control device under the condition that the discharge parameter meets the preset wake-up parameter condition.

In a third aspect, the present application provides a battery management system comprising: the system comprises a main control device, an electric parameter acquisition device, a switch switching device and a monitoring processing device, wherein the main control device is used for connecting electric equipment; the electric parameter acquisition device is respectively connected with the target battery and the electric equipment; the switch switching device is respectively connected with the target battery and the electric equipment; the monitoring processing device is respectively connected with the target battery, the main control device, the switch switching device and the electric parameter acquisition device, and is used for executing the steps of the battery control method.

In some embodiments, the switching device includes a first switching device and a second switching device, a first end of the first switching device is connected to the target battery, a second end of the first switching device is connected to the monitoring processing device and a first end of the second switching device, a first end of the second switching device is further connected to the monitoring processing device, a second end of the second switching device is connected to the electrical equipment, and a third end of the first switching device and a third end of the second switching device are respectively connected to the monitoring processing device.

In some embodiments, the current collection device comprises a current divider, a first end of the current divider is connected with the target battery and the monitoring processing device, and a second end of the current divider is connected with the electric equipment and the monitoring processing device.

According to the scheme, the current divider is used for collecting the discharge parameters, so that the discharge current of the target battery in the dormant running state is obtained, and the current divider has the advantages of being high in collection precision, convenient to use and the like.

In some embodiments, the battery management system further comprises a communicator, and the master control device is connected with the electric equipment through the communicator.

According to the scheme, the communicator is arranged to realize connection of the main control device and the electric equipment, the monitoring processing device enters the dormant running state through the dormant signal received and sent by the main control device, interaction between the monitoring processing device and the electric equipment is not needed, and data processing capacity of the monitoring processing device is reduced

In a fourth aspect, the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described battery control method.

In a fifth aspect, the present application provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the above battery control method.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

fig. 1 is a schematic diagram of an application scenario of a power battery according to some embodiments of the present application;

Fig. 2 is a schematic diagram of an application scenario of a battery control method according to some embodiments of the present application;

FIG. 3 is a flow chart of a battery control method according to some embodiments of the application;

FIG. 4 is a schematic flow chart of a battery control method according to other embodiments of the application;

FIG. 5 is a flowchart of a method of controlling a battery in some embodiments of the application;

FIG. 6 is a schematic diagram of a battery control device according to some embodiments of the present application;

FIG. 7 is a schematic view of a battery control device according to other embodiments of the present application;

fig. 8 is a schematic diagram of a battery management system according to some embodiments of the application.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

When the power battery is applied to various electric equipment, under the condition that the electric equipment has electricity demand, electric energy can be output to drive the electric equipment to operate, and under the condition that the electric equipment does not have electricity demand, the power battery is often required to be controlled to enter a dormant operation state in order to ensure the residual capacity of the power battery. In the dormant running state, the power battery does not completely consume electric quantity, and at the moment, the power battery still needs to output partial electric energy, so that the monitoring function of the battery management system is maintained, and the power battery can respond in time when the power battery is abnormal.

Taking an electric automobile as an example, in order to realize the operation state monitoring of a power battery in a sleep operation mode, an average current in a sleep state of an Analog Front End (AFE) module and a micro control unit (Microcontroller Unit, MCU) module is generally required to be collected through a current collection device, so that the AFE module periodically wakes up to collect a main loop current, and the MCU module periodically wakes up to calculate the ampere hours (i.e. the electric quantity) consumed by the main loop, the AFE module and the MCU module in the periodic sleep time, and feeds back the ampere hours (i.e. the electric quantity) to an SOC (state of charge) through ampere time integration, so that finally, the SOC of the power battery in the sleep state still maintains higher precision.

However, although the power battery is kept to a certain extent with higher SOC precision, the stability and the intelligence of a battery management system of the power battery can be improved, the power battery is required to be frequently and periodically awakened, the SOC of the power battery is kept at higher precision through charge and discharge, the times of the cyclic charge and discharge of the power battery are more, and the service life of the power battery is seriously influenced.

In order to alleviate the problem that the service life of the power battery is influenced by frequent charge and discharge of the power battery in the dormant state, research discovers that a wake-up condition can be set for the MCU module, the low-power consumption real-time collection of the discharge parameters of the power battery is realized by utilizing the monitoring processing device in the dormant operation mode, and under the condition that the discharge parameters meet the wake-up condition, the MCU is woken up again to adjust the SOC of the power battery, so that the power battery is prevented from being supplemented by frequent wake-up of the MCU, and the charge and discharge cycle times of the power battery are reduced.

Based on the above consideration, the application designs a battery management system, which keeps the normal operation of a discharge parameter acquisition function when entering a sleep operation state, continuously monitors the discharge of a power battery, and writes preset wake-up parameter conditions in a monitoring processing device. Under the condition that the monitoring processing device monitors that the discharge parameter meets the preset wake-up parameter condition, the monitoring processing device wakes up the main control device (particularly an MCU) reversely, and the main control device controls the external charging device to run so as to supplement electricity for the power battery, so that the SOC of the power battery is maintained.

In more detail, the discharging parameter may be the electric quantity consumed by the power battery in the dormant state, when the monitoring processing device enters the dormant operation state, the discharging parameter collecting function and the electric quantity calculating function are kept running, the discharging current of the power battery is continuously collected to calculate the electric quantity, the calculated discharging electric quantity is compared with the preset discharging electric quantity, and the reverse wake-up main control device is used for supplementing electricity for the power battery under the condition that the discharging electric quantity is greater than or equal to the preset discharging electric quantity.

The target battery, namely the battery core, the battery pack or the battery pack in the power battery which is required to be controlled by the battery control method disclosed by the embodiment of the application, can be used in electric equipment such as mobile phones, flat plates, notebook computers, electric toys, electric tools, battery cars, electric automobiles, ships, spacecrafts and the like, but is not limited to. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of explanation, the following examples will explain the application of the power battery in the vehicle according to an embodiment of the present application. Fig. 1 is a schematic diagram of a vehicle 10 according to some embodiments of the present application. The vehicle 10 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The interior of the vehicle 10 is provided with a power battery 100, and the power battery 100 may be provided at the bottom or at the head or at the tail of the vehicle 10. The power battery 100 may be used to power the vehicle 10, for example, the power battery 100 may be used as an operating power source for the vehicle 10 and may also be used as a driving power source for the vehicle 10 to provide driving power to the vehicle 10 instead of or in part instead of fuel oil or natural gas. The vehicle 10 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 10.

The battery control method provided by the embodiment of the application is applied to the battery management system shown in fig. 2, and the battery management system comprises an electric parameter acquisition device 201, a switch switching device 205, a main control device 207 and a monitoring processing device 203. The main control device 207 is used for connecting electric equipment, the target battery and the electric equipment are respectively connected with the electric parameter acquisition device 201, the target battery and the electric equipment are respectively connected with the switch switching device 205, and the target battery, the main control device 207, the switch switching device 205 and the electric parameter acquisition device 201 are respectively connected with the monitoring processing device 203. The switch switching device 205 is used for switching on or off the connection between the target battery and the monitoring processing device 203, and switching on or off the connection between the target battery and the electric equipment, the main control device 207 is used for realizing the communication between the battery management system and the electric equipment, and the electric parameter acquisition device 201 is used for acquiring the discharge parameter of the target battery in the dormant state and transmitting the discharge parameter to the monitoring processing device, so that the battery control is realized through the monitoring processing device.

Referring to fig. 3, a battery control method applied to a monitoring processing device is illustrated, and the battery control method includes steps 302 and 304.

Step 302, under the condition of entering a dormant running state, acquiring the discharge parameters of the target battery in real time.

Specifically, the target battery is an electric core, a battery pack or a battery pack in the power battery corresponding to the battery management system in the embodiment of the application. The method for acquiring the discharge parameters is not unique, and in the scheme of this embodiment, an electrical parameter acquisition device is arranged between the target battery and the electric equipment, the discharge parameters of the target battery are acquired in real time through the electrical parameter acquisition device, and the acquired discharge parameters are sent to the monitoring processing device.

The manner in which the monitoring processing device enters the sleep mode is not exclusive, and in a more detailed embodiment, the monitoring processing device may enter the sleep mode after receiving the sleep signal issued by the master device of the battery management system. In another embodiment, the monitoring processing device is in communication connection with the control device of the electric equipment, and enters a sleep running state when receiving a sleep instruction issued by the electric equipment.

It should be noted that the type of discharge parameter is not exclusive, and any type of parameter that can reflect a change in the discharge state of the target battery may be used. For example, in one more detailed embodiment, the discharge parameter includes at least one of a discharge amount and a discharge current.

It will be appreciated that depending on the type of discharge parameter, the specific operating state may be different when the monitoring processing device enters the sleep operating state. Taking the discharge parameters including the discharge current as an example, the monitoring processing device only needs to keep the current sampling and the current comparison analysis function to operate after entering the sleep operation state. Taking the discharging parameter including the discharging electric quantity as an example, since the discharging electric quantity needs to be calculated by combining the discharging current and the discharging time, after the monitoring processing device enters the sleep operation state, the current sampling function, the electric quantity metering function and the electric quantity comparison analysis function need to be kept to operate.

The specific type of monitoring processing means is not exclusive, and any device may be used as long as it has a discharge current acquisition and analysis function to generate a wake-up signal. In one embodiment, the monitoring processing device may be a processor, and functions of obtaining a discharge parameter, analyzing the discharge parameter, analyzing abnormal discharge, monitoring overvoltage, monitoring over-temperature, generating a wake-up signal and the like are written in the processor, so as to implement the battery control method of the embodiment of the application.

In other embodiments, the monitoring processing device may be further built by a hardware circuit, which integrates a discharge parameter sampling circuit, a fast comparison circuit, an electric quantity metering circuit, a temperature monitoring circuit, a voltage detection circuit, and the like, and can also implement the battery control method according to the embodiment of the present application. Further, in an embodiment, the monitoring processing device may be further built by a hardware circuit and a processor, which is not limited in particular.

In more detail, in one embodiment, the monitoring processing device includes an ASIC (Application Specific Integrated Circuit, application specific integrated circuit chip) with a device having functions of acquiring a discharge parameter, analyzing the discharge parameter, analyzing abnormal discharge, monitoring overvoltage, monitoring over temperature, generating a switch control signal, generating a wake-up signal, and the like, which is built in software and/or hardware.

The type of the target battery is not unique, and may be a single battery cell or a battery pack (or battery pack) formed by connecting two or more battery cells in series-parallel, which is not particularly limited. In a more detailed embodiment, the target battery comprises a 12V lithium battery.

Step 304, sending a wake-up signal to a main control device of the battery management system under the condition that the discharge parameter meets the preset wake-up parameter condition.

Specifically, the preset wake-up parameter condition is a preset condition that needs to be met when the main control device of the battery management system is waken up. In the solution of this embodiment, after the monitoring processing device obtains the discharge parameter, the discharge parameter is compared with a preset wake-up parameter condition, and whether the discharge parameter obtained at the present time meets the preset wake-up parameter condition is determined.

The wake-up signal is used to wake up the master device. In the case that the monitoring processing device is in the sleep operation state, the main control device of the battery management system can also enter the sleep operation state. And under the condition that the acquired discharge parameters are analyzed to meet the preset wake-up parameter conditions, the monitoring processing device characterizes that the main control device of the battery management system corresponding to the target battery has operation requirements, generates a wake-up signal and sends the wake-up signal to the main control device, and the main control device starts to operate under the action of the wake-up signal.

It will be appreciated that the tasks performed by the master device after waking up to run will also vary depending on the specific type of discharge parameter. In one embodiment, if the discharging parameter includes a discharging electric quantity, the main control device performs an operation of supplementing the target battery under the action of the wake-up signal sent by the monitoring processing device, and the external charging device is controlled to be connected with the target battery to supplement the target battery with an appropriate electric quantity. In one embodiment, if the discharge parameter includes a discharge current, which indicates that in the sleep operation state, the target battery is discharged with an abnormal large current, the main control device will execute an alarm prompt operation under the action of the wake-up signal, so as to perform fault investigation in time.

It should be noted that the specific type of master device is not unique and in a more detailed embodiment the master device comprises an MCU. In another embodiment, the master device may also be a device with a data processing function, such as a CPU (Central Processing Unit ), DSP (Digital Signal Processing, digital signal processor), and the like, which is not particularly limited.

According to the battery control method, under the condition that the battery enters the dormant running state, the discharging parameters of the target battery can be obtained in real time and compared and analyzed with the preset awakening parameter conditions, and under the condition that the discharging parameters meet the preset awakening parameter conditions, the main control device of the battery management system is awakened reversely, so that the main control device can timely conduct power compensation control on the target battery, and the residual electric quantity of the target battery is guaranteed. According to the scheme, in the dormant state, the main control device of the battery management system does not need to wake up periodically to supplement power for the target battery, but wakes up the main control device to execute power supplementing operation under the condition that the discharging parameter meets the preset wake-up parameter condition, so that the charge and discharge cycle times of the target battery in the dormant state are slowed down to a certain extent, and the service life of the target battery is prolonged.

In some embodiments, referring to fig. 4, prior to step 302, the method further includes step 402.

Step 402, when a sleep signal is received, entering a sleep operation state.

Specifically, in the solution of this embodiment, the monitoring processing device is connected to the main control device, and the main control device is further connected to the electric device in a wired or wireless communication manner. Under the condition that the electric equipment does not have the electricity demand, the electric equipment can firstly send a dormancy instruction to the main control device, the main control device can further send dormancy signals to the monitoring processing device after receiving the dormancy instruction, and under the action of the dormancy instruction, the main control device enters a dormancy running state, and the communication function between the main control device and the monitoring processing device is maintained. After receiving the sleep signal issued by the main control device, the monitoring processing device enters a sleep running state.

It should be noted that the connection between the monitoring processing device and the master device is not exclusive and may be a wired connection or a wireless connection. In more detail, in one embodiment, the monitoring processing device and the master device are connected to each other through an SPI (Serial Peripheral Interface ) bus.

Likewise, the connection between the master device and the consumer is not exclusive, and in a more detailed embodiment, the battery management system further includes a communicator, and the master device is connected to the consumer through the communicator. In more detail, in one embodiment, the communicator specifically comprises a CAN (Controller Area Network ) communicator.

In some embodiments, entering the sleep state of operation includes: the control switch switching device is connected with the target battery, and meanwhile, the control switch device is connected with the target battery and the electric equipment.

Specifically, the switch switching device is a device with a switch switching function to realize the on operation of different lines. In the scheme of this embodiment, the battery management system includes the switch auto-change over device, and target battery, consumer and monitoring processing apparatus are connected with the switch auto-change over device respectively, can switch on or switch off the connection of monitoring processing apparatus and target battery through the switch auto-change over device, also can switch on or switch off the connection of target battery and consumer. Therefore, after the monitoring processing device receives the dormancy signal sent by the main control device, the connection between the target battery and the electric equipment is cut off, the power supply to the electric equipment is stopped, the connection between the monitoring processing device and the target battery is conducted, the electric energy required by the low-power-consumption operation is provided for the monitoring processing device through the target battery, and the monitoring processing device enters a low-power-consumption operation mode.

It should be noted that the specific form of the low power consumption operation mode is not unique, and may be that only the current sampling and current comparison analysis function is turned on, or that the current sampling, the discharge electric quantity calculation and the discharge electric quantity comparison analysis function is turned on, and the specific form is selected in combination with actual requirements.

In some embodiments, controlling the switch switching device to conduct a connection with the target battery while controlling the switch device to disconnect the target battery from the powered device includes: and controlling the second switching device connected with the monitoring processing device and the electric equipment to be turned off, and controlling the first switching device connected with the second switching device, the target battery and the monitoring processing device to be turned on.

Specifically, the type of the switching device is not the only type, and in the scheme of this embodiment, the switching device includes a first switching device and a second switching device, where the first switching device is used to access the target battery, and the second switching device is used to access the electric equipment. Under the condition that the two switching devices are both conducted, the target battery is connected with the electric equipment through the switching device, and under the condition that the first switching device is conducted and the second switching device is disconnected, the target battery is connected with the monitoring processing device through the switching device.

It should be noted that the specific types of the first switching device and the second switching device are not exclusive, and may be a transistor, a field effect transistor, or the like, and are not particularly limited. In more detail, in one embodiment, the first switching device and the second switching device are each field effect transistors, and the first switching device and the second switching device are connected in a back-to-back manner. That is, the source end of the first switching device is connected with the source end of the second switching device, the drain end of the first switching device is connected with the target battery, the drain end of the second switching device is connected with the electric equipment, and the gate ends of the first switching device and the second switching device are respectively connected with the monitoring processing device.

In some embodiments, entering the sleep state of operation further comprises: the control target battery is discharged through the body diode of the second switching device with a current smaller than a preset threshold.

Specifically, taking the first switching device and the second switching device as field effect transistors as examples, in the scheme of this embodiment, when the second switching device is turned off, the connection between the target battery and the electric equipment is already disconnected, so as to prevent the target battery from being abused by wire-bonding and jumper connection, and damage the target battery. According to the scheme of the embodiment, the monitoring processing device can control the target battery to discharge with the current smaller than the preset threshold value through the body diode of the second switching device, namely, small current discharge is performed, the discharged current can flow into electric equipment or other electric equipment, and the method is not limited in detail.

After the monitoring processing device controls the target battery to discharge with the small current of the body diode of the second switching device, the monitoring processing device can also collect and monitor the current discharged by the body diode in real time so as to determine whether the current target battery is subjected to misuse blind charging or not. Specifically, the monitoring processing device compares and analyzes the collected current value with a preset abuse protection threshold value, and under the condition that the current value is detected to be greater than or equal to the preset abuse protection threshold value, the target battery is considered to be subjected to abuse blind charging, and at the moment, the monitoring processing device can output an alarm prompt signal to inform a user.

In some embodiments, the discharge parameter comprises a discharge current, the discharge parameter satisfying the preset wake-up parameter condition, comprising: and under the condition that the discharge current is greater than or equal to a preset current threshold value, determining that the discharge parameter meets a preset wake-up parameter condition.

Specifically, the preset current threshold is a preset current value which is satisfied when the target battery is abnormally discharged. The specific type of the discharge parameter obtained by the monitoring processing device is not unique, the discharge parameter includes a discharge current, the discharge current of the target battery can be obtained in real time when the monitoring processing device enters a dormant operation state and operates in a low-power consumption operation mode, the obtained discharge current is compared and analyzed with a preset current threshold, and when the discharge current is greater than or equal to the preset current threshold, the target battery is considered to be overdischarged, at the moment, the monitoring processing device is required to wake up the main control device, so that the main control device timely outputs prompt information, and the overdischarge state of the target battery is informed to a user, so that fault investigation can be conducted timely, and the operation safety of the target battery is ensured.

It should be noted that the manner in which the monitoring processing device obtains the discharge current is not unique, and in one embodiment, the battery management system corresponding to the target battery is provided with an electrical parameter collection device, and the electrical parameter collection device is respectively connected with the target battery, the electric equipment and the monitoring processing device, and the discharge current of the target battery in the sleep state is collected through the electrical parameter collection device and transmitted to the monitoring processing device.

The specific type of electrical parameter acquisition device is not exclusive, as long as the discharge current of the target battery can be acquired, and in a more detailed embodiment, the electrical parameter acquisition device includes a shunt.

In some embodiments, in the event that the discharge parameter satisfies a preset wake-up parameter condition, the method further comprises: the control switch switching device conducts connection between the target battery and the electric equipment.

Specifically, on the basis that the discharge parameters include the discharge current, if the discharge current of the target battery is greater than or equal to a preset current threshold, that is, if the target battery is excessively discharged in a dormant state, the monitoring processing device not only wakes up the main control device reversely to carry out alarm prompt, but also conducts connection between the target battery and the electric equipment through the switch switching device, that is, controls the second switching device of the switch switching device to conduct, so that the body diode of the second switching device is prevented from being burnt by heavy current during abnormal discharge.

In some embodiments, the discharge parameter includes a discharge power, the discharge parameter satisfying the preset wake-up parameter condition, including: and under the condition that the discharge electric quantity is larger than or equal to the preset discharge electric quantity, determining that the discharge parameter meets the preset wake-up parameter condition.

Specifically, the discharge capacity, that is, the battery capacity released when the target battery needs to be charged, is preset. In the solution of this embodiment, the discharge parameter includes a discharge capacity, that is, a battery capacity released by the target battery. After entering a dormant running state, the monitoring processing device can acquire the accumulated released electric quantity of the target battery, namely the electric quantity of discharge in real time, compares and analyzes the electric quantity of discharge with the preset electric quantity of discharge, wakes up the main control device in time under the condition that the electric quantity of discharge is greater than or equal to the preset electric quantity of discharge, controls the charging device to access the target battery through the main control device, supplements electricity for the target battery, finally maintains the residual electric quantity of the target battery in a required state, and ensures the residual electric quantity of the target battery.

It should be noted that the manner in which the monitoring processing device obtains the discharge power of the target battery is not unique, and in a more detailed embodiment, the battery management system includes an electrical parameter collection device, which is connected to the target battery, the electrical equipment, and the monitoring processing device, respectively, and through which the discharge current of the target battery in the sleep state is collected and transmitted to the monitoring processing device. And then the monitoring processing device calculates according to the discharge current obtained in real time, and the discharge electric quantity of the target battery can be determined.

It will be appreciated that the manner in which the monitoring device calculates the amount of electricity discharged is not unique, and in a more detailed embodiment, the monitoring device is provided with an electricity meter, and an ampere-hour integral calculation can be performed in combination with the discharge current obtained in real time, so as to obtain an ampere-hour integral result, i.e. the amount of electricity discharged.

In some embodiments, the determining the preset wake-up parameter condition includes: and acquiring wake-up parameter conditions sent by the main control device when receiving the sleep instruction, and taking the wake-up parameter conditions as preset wake-up parameter conditions.

Specifically, the main control device is in communication connection with the electric equipment, when the electric equipment does not have the electricity demand, the main control device firstly sends a sleep instruction to the main control device, and after receiving the sleep instruction, the main control device can enter a sleep running state and can send a sleep signal and a wake-up parameter condition required at the moment to the monitoring processing device. After the monitoring processing device is combined with the dormancy instruction, the monitoring processing device is used as a preset awakening parameter condition and stored, and the acquired discharge parameter is continuously compared and analyzed with the preset awakening parameter condition in the dormancy running state.

In a more detailed embodiment, the discharge parameter includes a discharge power, and the wake-up parameter is that the discharge power needs to be greater than or equal to a preset discharge power. In the running process of the target battery, the stored electric quantity is continuously consumed, the SOC is not identical every time the target battery enters the dormant running state, and the corresponding required preset discharging electric quantity is not identical every time the target battery enters the dormant state in order to maintain the SOC of the target battery at a certain value or a certain range. Therefore, according to the scheme of the embodiment, the main control device can match the corresponding discharge electric quantity for the target battery by combining the SOC of the target battery at the moment, and transmit the corresponding discharge electric quantity to the monitoring processing device to serve as the preset discharge electric quantity so as to control.

Referring to fig. 5, in order to facilitate understanding of the technical solution of the present application, the present application will be explained below with reference to more detailed embodiments.

In this embodiment, the electric equipment includes an electric automobile, first, under the condition that there is no automobile demand, the whole vehicle control device sends a sleep instruction to a main control device of the battery management system, the main control device enters a sleep running state, and generates a preset discharge electric quantity for a target battery by combining the residual electric quantity of the current target battery, writes the preset discharge electric quantity and a preset current threshold value into the monitoring processing device, and sends a sleep signal to the monitoring processing device. After receiving the dormancy signal, the monitoring processing device enters a low-power consumption operation mode, namely, only keeps the functions of current sampling, electric quantity calculation and discharge electric quantity comparison to operate; and controlling the first switching device to be turned on, controlling the second switching device to be turned off, and controlling the body diode of the second switching device to discharge small current.

And the monitoring processing device performs ampere-hour integral calculation according to the discharge current acquired and sent by the current divider in real time to obtain the discharge electric quantity of the target battery, and performs comparison analysis on the discharge electric quantity and the preset discharge electric quantity, and/or performs comparison analysis on the discharge current and the preset current threshold. When the discharge current is detected to be greater than or equal to a preset current threshold value, a wake-up signal is sent to the main control device, and the main control device is reversely waken up; and then the main control device outputs a large-current discharge alarm prompt signal and controls the second switching device to be conducted so as to prevent the body diode of the second switching device from being damaged by large-current discharge.

And when the discharge electric quantity is detected to be larger than or equal to the preset discharge electric quantity, a wake-up signal is sent to the main control device, and then the main control device wakes up an external charging device, such as a whole vehicle ECU (Electronic Control Unit ) or a Direct Current-Direct Current (DC converter), to supplement electricity for the target battery until the residual electric quantity of the target battery meets the requirement.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a battery control device for realizing the above related battery control method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the battery control device or devices provided below may be referred to the limitation of the battery control method hereinabove, and will not be repeated here.

In some embodiments, referring to FIG. 6, a discharge parameter acquisition module 602 and a wake-up control module 604.

The discharging parameter obtaining module 602 is configured to obtain a discharging parameter of the target battery in real time when entering a sleep operation state; the wake-up control module 604 is configured to send a wake-up signal to a master control device of the battery management system to wake up the master control device if the discharge parameter satisfies a preset wake-up parameter condition.

In some embodiments, referring to fig. 7, prior to the discharge parameter acquisition module 602, the apparatus further includes a sleep control module 702.

The sleep control module 702 is configured to enter a sleep operation state when receiving a sleep signal.

In some embodiments, sleep control module 702 is further configured to control the switch gear to turn on the connection with the target battery while controlling the switch gear to disconnect the target battery from the powered device.

In some embodiments, sleep control module 702 is further configured to control the second switching device connecting the monitoring processing device and the powered device to turn off and to control the first switching device connecting the second switching device, the target battery, and the monitoring processing device to turn on.

In some embodiments, the sleep control module 702 is further configured to control the target battery to discharge at a current less than a preset threshold through the body diode of the second switching device.

In some embodiments, the discharge parameter includes a discharge current, and the wake-up control module 604 is further configured to determine that the discharge parameter satisfies a preset wake-up parameter condition if the discharge current is greater than or equal to a preset current threshold.

In some embodiments, the wake-up control module 604 is further configured to control the switch switching device to conduct the connection of the target battery to the powered device.

In some embodiments, the discharge parameter includes a discharge power, and the wake-up control module 604 is further configured to determine that the discharge parameter satisfies a preset wake-up parameter condition when the discharge power is greater than or equal to a preset discharge power.

Each of the modules in the above-described battery control apparatus may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

According to the battery control device, under the condition that the battery control device enters the sleep running state, the discharging parameters of the target battery can be obtained in real time and compared and analyzed with the preset wake-up parameter conditions, and under the condition that the discharging parameters meet the preset wake-up parameter conditions, the main control device of the battery management system is reversely awakened, so that the main control device can timely conduct power compensation control on the target battery under the wake-up state, and the residual electric quantity of the target battery is guaranteed. According to the scheme, in the dormant state, the main control device of the battery management system does not need to wake up periodically to supplement power for the target battery, but wakes up the main control device to execute power supplementing operation under the condition that the discharging parameter meets the preset wake-up parameter condition, so that the charge and discharge cycle times of the target battery in the dormant state are slowed down to a certain extent, and the service life of the target battery is prolonged.

Referring to fig. 2 in combination, the present application provides a battery management system, including: the device comprises a main control device 207, an electric parameter acquisition device 201, a switch switching device 205 and a monitoring processing device 203, wherein the main control device 207 is used for connecting electric equipment; the electric parameter acquisition device 201 is respectively connected with the target battery and the electric equipment; the switch switching device 205 is respectively connected with the target battery and the electric equipment; the monitoring processing device 203 is respectively connected with the target battery, the main control device 207, the switch switching device 205 and the electrical parameter acquisition device 201, and the monitoring processing device 203 is used for executing the steps of the battery control method.

Specifically, the implementation manner of the battery control method is as shown in the above embodiment, and will not be described herein. Through the battery management system of this embodiment, when the battery management system enters the sleep operation state, the monitoring processing device 203 can acquire the discharge parameter of the target battery in real time, compare and analyze the discharge parameter with the preset wake-up parameter condition, and reversely wake up the main control device 207 of the battery management system when the discharge parameter meets the preset wake-up parameter condition, so that the main control device 207 can timely perform power compensation control on the target battery in the wake-up state, and ensure the residual electric quantity of the target battery. In the above-mentioned scheme, in the sleep state, the main control device 207 of the battery management system does not need to wake up periodically to supplement power to the target battery, but wakes up the main control device 207 to perform the power supplementing operation under the condition that the discharge parameter satisfies the preset wake-up parameter condition, so as to slow down the charge and discharge cycle times of the target battery in the sleep state to a certain extent, and improve the service life of the target battery.

Referring to fig. 8 in combination, in some embodiments, the switching device 205 includes a first switching device M1 and a second switching device M2, a first end of the first switching device M1 is connected to the target battery, a second end of the first switching device M1 is connected to the monitoring processing device 203 and a first end of the second switching device M2, a first end of the second switching device M2 is further connected to the monitoring processing device 203, a second end of the second switching device M2 is connected to an electrical apparatus (not shown), and a third end of the first switching device M1 and a third end of the second switching device M2 are respectively connected to the monitoring processing device 203.

Accordingly, controlling the switch switching device 205 to conduct the connection with the target battery while controlling the switch device to disconnect the target battery from the electric device includes: the second switching device M2 connecting the monitoring processing device 203 and the electric equipment is controlled to be turned off, and the first switching device M1 connecting the second switching device M2, the target battery and the monitoring processing device 203 is controlled to be turned on.

It should be noted that the specific types of the first switching device M1 and the second switching device M2 are not exclusive, and may be transistors, field effect transistors, or the like, and are not particularly limited. In more detail, in one embodiment, the first switching device M1 and the second switching device M2 are both field effect transistors, and the first switching device M1 and the second switching device M2 are connected in a back-to-back manner. That is, the source end of the first switching device M1 is connected to the source end of the second switching device M2, the drain end of the first switching device M1 is connected to the target battery, the drain end of the second switching device M2 is connected to the electric device, and the gate ends of the first switching device M1 and the second switching device M2 are respectively connected to the monitoring and processing device 203.

According to the scheme, the switch switching device 205 is formed by adopting the two switch devices, and the switching of the running state is realized by controlling the on and off of the two switch devices, so that the control reliability is high, and the running reliability of the battery management system can be effectively improved.

In some embodiments, the current collection device comprises a shunt, a first end of the shunt is connected with the target battery and the monitoring processing device 203, and a second end of the shunt is connected with the electric equipment and the monitoring processing device 203.

Specifically, the shunt is an instrument for measuring a direct current, and is manufactured according to the principle that a voltage is generated across a resistor when the direct current passes through the resistor. The current of the target battery is collected by the current divider and then sent to the monitoring and processing device 203, so as to evaluate whether the preset wake-up parameter condition is satisfied.

Referring to fig. 8 in combination, in some embodiments, the battery management system further includes a communicator 209, and the master control device 207 is connected to a powered device (not shown) through the communicator 209.

Specifically, the connection mode between the main control device 207 and the electric device is not the only one, and in the solution of this embodiment, the battery management system further includes a communicator 209, and the main control device 207 is connected to the electric device through the communicator 209. In more detail, in one embodiment, communicator 209 comprises a CAN communicator.

In the above scheme, the communicator 209 is set to realize connection between the main control device 207 and the electric equipment, the monitoring processing device 203 enters the sleep running state through the sleep signal received and sent by the main control device 207, interaction between the monitoring processing device 203 and the electric equipment is not needed, and the data processing amount of the monitoring processing device 203 is reduced.

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:

under the condition of entering a dormant running state, acquiring the discharge parameters of the target battery in real time; and under the condition that the discharge parameter meets the preset wake-up parameter condition, sending a wake-up signal to a main control device of the battery management system to wake up the main control device.

In one embodiment, the computer program when executed by the processor further performs the steps of: and when the sleep signal is received, entering a sleep operation state.

In one embodiment, the computer program when executed by the processor further performs the steps of: the control switch switching device is connected with the target battery, and meanwhile, the control switch device is connected with the target battery and the electric equipment.

In one embodiment, the computer program when executed by the processor further performs the steps of: and controlling the second switching device connected with the monitoring processing device and the electric equipment to be turned off, and controlling the first switching device connected with the second switching device, the target battery and the monitoring processing device to be turned on.

In one embodiment, the computer program when executed by the processor further performs the steps of: the control target battery is discharged through the body diode of the second switching device with a current smaller than a preset threshold.

In one embodiment, the computer program when executed by the processor further performs the steps of: and under the condition that the discharge current is greater than or equal to a preset current threshold value, determining that the discharge parameter meets a preset wake-up parameter condition.

In one embodiment, the computer program when executed by the processor further performs the steps of: the control switch switching device conducts connection between the target battery and the electric equipment.

In one embodiment, the computer program when executed by the processor further performs the steps of: and under the condition that the discharge electric quantity is larger than or equal to the preset discharge electric quantity, determining that the discharge parameter meets the preset wake-up parameter condition.

In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, performs the steps of:

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The storage medium and the computer program product can acquire the discharge parameters of the target battery in real time under the condition of entering the sleep running state, compare and analyze the discharge parameters with the preset wake-up parameter conditions, and reversely wake up the main control device of the battery management system under the condition that the discharge parameters meet the preset wake-up parameter conditions, so that the main control device can timely carry out power compensation control on the target battery under the wake-up state, and the residual electric quantity of the target battery is ensured. According to the scheme, in the dormant state, the main control device of the battery management system does not need to wake up periodically to supplement power for the target battery, but wakes up the main control device to execute power supplementing operation under the condition that the discharging parameter meets the preset wake-up parameter condition, so that the charge and discharge cycle times of the target battery in the dormant state are slowed down to a certain extent, and the service life of the target battery is prolonged.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A battery control method, characterized by comprising:

under the condition of entering a dormant running state, acquiring the discharge parameters of the target battery in real time;

and under the condition that the discharge parameter meets the preset wake-up parameter condition, sending a wake-up signal to a main control device of the battery management system to wake up the main control device.

2. The battery control method according to claim 1, wherein before the acquiring the discharge parameter of the target battery in real time in the case of entering the sleep operation state, further comprises:

and when the sleep signal is received, entering a sleep operation state.

3. The battery control method according to claim 2, characterized in that the entering into the sleep operation state includes:

and controlling the switch switching device to conduct the connection with the target battery, and simultaneously controlling the switch device to disconnect the connection between the target battery and the electric equipment.

4. The battery control method according to claim 3, wherein the control switch switching means turns on the connection with the target battery while the control switch means disconnects the target battery from the electric device, comprising:

and controlling a second switching device connected with the monitoring processing device and the electric equipment to be turned off, and controlling a first switching device connected with the second switching device, the target battery and the monitoring processing device to be turned on.

5. The battery control method according to claim 4, wherein said entering a sleep operation state further comprises:

and controlling the target battery to discharge at a current smaller than a preset threshold value through the body diode of the second switching device.

6. The battery control method according to any one of claims 1 to 5, wherein the discharge parameter includes a discharge current;

the discharging parameter meets the preset wake-up parameter condition, and the discharging parameter comprises the following steps:

and under the condition that the discharge current is greater than or equal to a preset current threshold value, determining that the discharge parameter meets the preset wake-up parameter condition.

7. The battery control method according to claim 6, characterized in that, in the case where the discharge parameter satisfies the preset wake-up parameter condition, further comprising:

and controlling a switch switching device to conduct connection between the target battery and the electric equipment.

8. The battery control method according to any one of claims 1 to 5, wherein the discharge parameter includes a discharge amount of electricity;

and under the condition that the discharge electric quantity is larger than or equal to a preset discharge electric quantity, determining that the discharge parameter meets the preset wake-up parameter condition.

9. The battery control method according to any one of claims 1 to 5, wherein the determination of the preset wake-up parameter condition includes:

and acquiring wake-up parameter conditions sent by the main control device when receiving the sleep instruction as preset wake-up parameter conditions.

10. A battery control device, characterized by comprising:

the discharging parameter acquisition module is used for acquiring the discharging parameters of the target battery in real time under the condition of entering the dormant running state;

the wake-up analysis module is used for determining whether the discharge parameters meet preset wake-up parameter conditions;

and the wake-up control module is used for sending a wake-up signal to a main control device of the battery management system to wake up the main control device under the condition that the discharge parameter meets the preset wake-up parameter condition.

11. A battery management system, comprising:

the main control device is used for connecting electric equipment;

the electric parameter acquisition device is respectively connected with the target battery and the electric equipment;

the switch switching device is respectively connected with the target battery and the electric equipment;

and the monitoring processing device is respectively connected with the target battery, the main control device, the switch switching device and the electric parameter acquisition device and is used for executing the steps of the battery control method according to any one of claims 1 to 9.

12. The battery management system of claim 11 wherein the switching device comprises a first switching device and a second switching device, a first end of the first switching device being connected to the target battery, a second end of the first switching device being connected to the monitoring processing device and a first end of the second switching device, the first end of the second switching device being further connected to the monitoring processing device, a second end of the second switching device being connected to the powered device, a third end of the first switching device and a third end of the second switching device being connected to the monitoring processing device, respectively.

13. The battery management system of claim 11, wherein the current collection device comprises a current divider, a first end of the current divider is connected to the target battery and the monitoring device, and a second end of the current divider is connected to the powered device and the monitoring device.

14. The battery management system of claim 10 further comprising a communicator, the master device being coupled to the powered device via the communicator.

15. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the battery control method according to any one of claims 1 to 9.

16. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the battery control method according to any one of claims 1 to 9.