CN116722615A - Low-power consumption control method, equipment and storage medium of battery management system - Google Patents
Low-power consumption control method, equipment and storage medium of battery management system Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 49
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- 238000004590 computer program Methods 0.000 claims description 21
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 18
- 229910052744 lithium Inorganic materials 0.000 description 18
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- 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
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Abstract
The application is applicable to the technical field of battery control, and provides a low-power consumption control method, equipment and a storage medium of a battery management system, wherein the battery management system is applied to a battery and comprises a monitoring circuit and a main control circuit; when an electronic load is connected to the output terminal of the battery, in the battery management system: the monitoring circuit is used for collecting analog current signals; acquiring a digital current signal according to the analog current signal; the digital current signal is sent to the main control line, wherein the analog current signal is generated when the battery discharges to an electronic load; the main control circuit is used for receiving the digital current signal sent by the monitoring circuit; acquiring an identification signal according to the digital current signal; and if the identification signal accords with a preset low-power consumption signal, controlling the battery management system to enter a low-power consumption state. The battery can reduce power consumption independently by externally connecting an electronic load to the output end of the battery.
Description
Technical Field
The present application relates to a battery management system, and more particularly to a battery management system, and a battery management system.
Background
With the wide application of lithium batteries in new energy industries such as new energy automobiles, new energy household appliances and the like, the storage life requirements of the lithium batteries are also improved. The battery management system (English is called Battery Management System, english is called BMS) in the lithium battery can automatically run and consume the electric energy stored in the battery when the battery is not charged or discharged, so that the storage life of the battery is reduced.
The BMS with the communication function can acquire an external control signal, and according to the external control signal, the current working mode of the BMS is set to be a shutdown mode (English is fully called as shutdown), so that the electric energy consumption generated when the battery does not work is reduced, and the storage life of the lithium battery can be prolonged. However, when the BMS does not have the communication function, the BMS cannot receive the external control signal, and then cannot enter the shutdown mode through the external control signal.
Disclosure of Invention
The embodiment of the application provides a low-power consumption control method, equipment and a storage medium of a battery management system, which can solve the problem that a battery cannot autonomously reduce power consumption.
In a first aspect, an embodiment of the present application provides a battery management system, which is applied to a battery, where the battery management system includes a monitoring circuit and a main control circuit;
in a possible implementation manner of the first aspect, when an electronic load is connected to an output terminal of the battery, in the battery management system:
the monitoring circuit is used for collecting analog current signals; acquiring a digital current signal according to the analog current signal; transmitting a digital current signal to the main control line, wherein the analog current signal is generated when the battery discharges to the electronic load;
the main control circuit is used for receiving the digital current signal sent by the monitoring circuit; acquiring an identification signal according to the digital current signal; and if the identification signal accords with the preset low-power consumption signal, controlling the battery management system to enter a low-power consumption state.
In a possible implementation manner of the first aspect, the electronic load is configured to control the current output by the battery according to a preset current control method when the battery is connected.
In a possible implementation manner of the first aspect, acquiring the identification signal according to the digital current signal includes:
decoding the digital current signal to obtain a pulse signal;
the identification signal is determined from the pulse signal.
In a possible implementation manner of the first aspect, if the identification signal meets a preset low power consumption signal, controlling the battery management system to enter a low power consumption state includes:
if the identification signal accords with the preset low-power consumption signal, the main control circuit controls the monitoring circuit to enter a low-power consumption state;
after the monitoring circuit enters a low power consumption state, the main control circuit enters the low power consumption state.
In a second aspect, an embodiment of the present application provides a low power consumption control method of a battery management system, where the battery management system is applied to a battery, and the battery management system includes a monitoring line and a main control line, and the method is applied to the main control line in the battery management system;
in a possible implementation manner of the second aspect, when an electronic load is connected to an output terminal of the battery, the method includes:
obtaining a digital current signal obtained after conversion according to an analog current signal, wherein the analog current signal is generated when the battery discharges to an electronic load;
acquiring an identification signal according to the digital current signal;
and if the identification signal accords with the preset low-power consumption signal, controlling the battery management system to enter a low-power consumption state.
In a possible implementation manner of the second aspect, the electronic load is configured to control the current output by the battery according to a preset current control method when the battery is connected.
In a possible implementation manner of the second aspect, acquiring the identification signal according to the digital current signal includes:
decoding the digital current signal to obtain a pulse signal;
the identification signal is determined from the pulse signal.
In a possible implementation manner of the second aspect, if the identification signal meets a preset low power consumption signal, controlling the battery management system to enter a low power consumption state includes:
if the identification signal accords with the preset low-power consumption signal, controlling the monitoring circuit to enter a low-power consumption state;
after the monitoring circuit enters a low power consumption state, the main control circuit enters the low power consumption state.
In a third aspect, an embodiment of the present application provides a low power consumption control apparatus of a battery management system, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the low power consumption control method of the battery management system of any one of the second above when executing the computer program.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the low power consumption control method of the battery management system of any one of the above second aspects.
In a fifth aspect, an embodiment of the present application provides a computer program product, which when run on a terminal device, causes the terminal device to execute the low power consumption control method of the battery management system of any one of the above second aspects.
It will be appreciated that the advantages of the second to fifth aspects may be found in the relevant description of the first aspect, and are not described here again.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
the embodiment of the application provides a battery management system, which is applied to a battery, wherein the battery management system comprises a monitoring circuit and a main control circuit, when an electronic load is connected to the output end of the battery, the monitoring circuit collects an analog current signal generated by the battery according to the electronic load and converts the analog current signal into a digital current signal, and the digital current signal is sent to the main control circuit; the main control circuit receives and acquires the identification signal according to the digital current signal to judge, and if the identification signal accords with a preset low-power-consumption signal, the battery management system is controlled to enter a low-power-consumption state. Compared with the scheme that the battery management system is required to be controlled to be converted into the low-power-consumption state through an external signal, the battery management system provided by the application only needs to be externally connected with an electronic load at the output end of the battery, and based on the influence of the electronic load on the output current of the battery, the influence can be identified by the main control circuit, and the battery management system is not required to be communicated with the outside and can be effectively converted into the low-power-consumption state.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a battery management system according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a current variation of a battery management system according to an embodiment of the present application;
fig. 3a and 3b are schematic diagrams of pulse signal waveforms of a battery management system according to an embodiment of the present application;
FIG. 4 is a flow chart of a method for controlling low power consumption of a battery management system according to an embodiment of the present application;
fig. 5 is a schematic diagram of an application scenario of a low power consumption control method of a battery management system according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a low power consumption control device of a battery management system according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Fig. 1 shows a schematic structural diagram of a battery management system according to an embodiment of the present application, where, as shown in fig. 1, a battery 1 includes a battery management system 10, and the battery management system 10 includes: a monitor line 101 and a master line 102. The battery 1 is externally connected with an electronic load 11.
In one possible implementation, the monitor line 101 and the master line 102 are connected by a communication bus, which may be implemented by an integrated circuit bus (english collectively referred to as Inter-Integrated Circuit, english simply referred to as I2C) or a serial peripheral interface (english collectively referred to as Serial Peripheral Interface, english simply referred to as SPI).
In one possible implementation, when the output of the battery 1 is not connected to the electronic load 11, the battery management system 10 continues to operate, consuming the electrical energy stored in the battery 1, reducing the storage life of the battery 1.
In one possible implementation, when the output terminal of the battery 1 is connected to the electronic load 11, the battery 1 outputs a voltage to the electronic load 11, and the monitoring circuit 101 obtains an analog current signal according to a current control method preset in the electronic load 11.
Specifically, fig. 2 shows a schematic diagram of current change of a battery management system according to an embodiment of the present application, as shown in fig. 2, in a possible implementation manner, the current control method is as follows: the output voltage provided by the battery 1 is constant, at this time, the electronic load 11 changes according to a preset resistance change period T, and at this time, the obtained sampling current I also changes along with the resistance change period of the electronic load 11, that is, the obtained analog current signal changes along with the resistance change period of the electronic load 11.
For example, the analog current signal may be a carrier current waveform such as a pulse width modulated wave (all of english is Pulse Width Modulation, english is abbreviated as PWM), a sine wave, and/or a step wave, and the monitoring circuit 101 collects the analog current signal through a current sensor or a sampling resistor.
The process of acquiring the analog current signal through the sampling resistor is exemplified as follows: the current flows through the sampling resistor, so that voltage difference values are generated at two ends of the sampling resistor, the voltages at two ends of the sampling resistor enter the analog signal sampler after being conditioned by the capacitance filter circuit, the current flowing through the sampling resistor can be obtained by dividing the acquired voltage difference values at two ends of the sampling resistor by the resistance value of the sampling resistor, and the acquired current, namely an analog current signal, is calculated.
In order to enable the main control line 102 to effectively identify the collected current signal, the monitoring line 101 obtains the analog current signal, performs analog-to-digital conversion processing on the analog current signal, converts the analog current signal into a binary digital current signal, and sends the digital current signal to the main control line 102 through the communication bus.
After the main control line 102 obtains the digital current signal, the digital current signal is decoded into a pulse signal, and the pulse signal is converted into a binary identification signal according to the number and the interval of the pulse signal waveform, wherein the pulse signal may be a waveform with a certain periodicity such as a square wave.
Specifically, fig. 3a and fig. 3b show schematic pulse signal waveforms of a battery management system according to an embodiment of the present application, in which four pulse signals are shown in fig. 3a, each pulse signal has a current duration of t/2, the current magnitudes of the pulse signals in the first t/2 period and the third t/2 period are N, and the corresponding binary signal is 1; the current of the pulse signals in the second t/2 time period and the fourth t/2 time period is 0, the corresponding binary signal is 0, and at the moment, the binary identification signal converted from the partial pulse signals is 1010;
in fig. 3b, there are three pulse signals, each pulse signal has a corresponding current duration of t, where the current magnitudes of the pulse signals in the first t period and the second t period are N, and the corresponding binary signal is 1; the current of the pulse signal in the third t time period is 0, the corresponding binary signal is 0, and at the moment, the binary identification signal converted from the part of pulse signal is 110;
the pulse signal may be converted into a binary identification signal by dividing the number and interval of the plurality of pulse signal waveforms (only a part of the pulse signal waveforms is shown in fig. 3a and 3 b).
In order to control the battery management system to enter a low power consumption state, when the identification signal converted by the pulse signal accords with the preset low power consumption signal in the battery 1, the main control circuit 102 controls the monitoring circuit 101 to enter the low power consumption state, and after the control is finished, the main control circuit 102 also enters the low power consumption state.
Specifically, the preset low power consumption signal may be a binary digital signal. The main control circuit 102 compares the identification signal with a preset low-power consumption control signal in the battery 1, when the identification signal accords with the preset low-power consumption control signal, the control signal is sent to the monitoring circuit 101 through the communication bus to control the monitoring circuit 101 to be converted from an operation state to a low-power consumption state, then the main control circuit 102 cuts off the power supply of the battery 1 to the main control circuit and enters the low-power consumption state, so that the battery management system is entirely in the low-power consumption state, and the low-power consumption control of the battery management system is completed. The external electronic load 11 at the output end of the battery 1 is disconnected, the battery 1 is connected to the equipment again, the operation is restarted after the battery 1 is connected to the equipment, the battery 1 outputs voltage and triggers an internal wake-up signal, and the battery management system 10 acquires the wake-up signal and enters the working state from the low-power consumption state.
When the battery does not work, the embodiment of the application ensures that the main control circuit in the battery management system can identify the influence by externally connecting an electronic load at the output end of the battery and based on the influence of the electronic load on the output current of the battery, and the battery management system can be effectively converted into a low-power consumption state without communicating with the outside, thereby reducing the self-consumption of the battery and prolonging the storage life of the battery.
Fig. 4 is a schematic flow chart of a low power consumption control method of a battery management system according to an embodiment of the present application, where the low power consumption control method is applied to a main control line in a battery as shown in fig. 4;
the low power consumption control method comprises the following steps:
in S401, a digital current signal obtained by converting an analog current signal is acquired.
In the above step, one possible implementation manner is that the main control line obtains the digital current signal obtained after the conversion according to the analog current signal.
In the foregoing embodiment of the present application, the current change schematic diagram of the battery management system shown in fig. 2 is shown, the analog current signal is changed according to the electronic load, the output voltage provided by the battery is constant, at this time, the electronic load is changed according to a preset resistance change period, and at this time, the obtained sampling current is also changed according to the resistance change period of the electronic load, that is, the analog current signal is changed according to the resistance change period of the electronic load.
The analog current signal may be sampled by a current sensor or a sampling resistor for the monitoring line.
The process of acquiring the analog current signal through the sampling resistor is exemplified as follows: the current flows through the sampling resistor, so that voltage difference values are generated at two ends of the sampling resistor, the voltages at two ends of the sampling resistor enter the analog signal sampler after being conditioned by the capacitance filter circuit, the current flowing through the sampling resistor can be obtained by dividing the acquired voltage difference values at two ends of the sampling resistor by the resistance value of the sampling resistor, and the acquired current, namely an analog current signal, is calculated.
Specifically, the digital current signal is a binary signal obtained by performing analog-to-digital conversion on an analog current signal by a monitoring circuit, wherein the analog-to-digital conversion is a technology of converting a continuous analog signal into a discrete digital signal, and the analog signal is converted into the digital signal through sampling, quantization and encoding.
Specifically, after the monitoring circuit converts to obtain a binary digital current signal, the binary digital current signal is transmitted to the main control circuit through a communication bus, wherein the communication bus can be realized through an I2C communication protocol or an SPI communication protocol.
In S402, an identification signal is acquired from the digital current signal.
In the above step, one possible implementation manner is that the main control circuit obtains the digital current signal, decodes the digital current signal, obtains a pulse signal, and determines the identification signal according to the pulse signal.
Specifically, after the main control circuit obtains the digital current signal, the digital current signal is decoded into a pulse signal, wherein the pulse signal can be a signal with a certain periodic waveform such as a square wave; after the pulse signal is acquired, the pulse signal is converted into a binary identification signal in combination with the period of the pulse signal.
For example, as shown in the schematic pulse signal waveforms of the battery management system in fig. 3a and 3b, in fig. 3a, there are four pulse signals, each pulse signal has a current duration of t/2, the current corresponding to the pulse signal in the first t/2 period and the third t/2 period is N, and the pulse signal with the current N is converted into 1 in binary system; the corresponding current in the pulse signals in the second t/2 time period and the fourth t/2 time period is 0, the pulse signal with the current of 0 is converted into 0 in binary system, and at the moment, the pulse signal of the part is converted into a binary identification signal of 1010;
in fig. 3b, there are three pulse signals, each pulse signal has a current duration t, the current corresponding to the pulse signal in the first t period and the second t period is N, and the pulse signal with the current N is converted into 1 in binary system; the corresponding current in the pulse signal in the third t time period is 0, the pulse signal with the current of 0 is converted into 0 in binary system, and at the moment, the pulse signal of the part is converted into a binary system identification signal 110;
by converting a plurality of pulse signals (only part of the pulse signal waveforms are shown in fig. 3a and 3 b), a binary identification signal is finally obtained.
In S403, if the identification signal meets the preset low power consumption signal, the battery management system is controlled to enter a low power consumption state.
In the above step, one possible implementation manner is that the preset low power consumption signal may be a binary digital signal. The main control circuit compares the identification signal with a preset low-power consumption signal, and when the identification signal accords with the preset low-power consumption signal, the battery management system is controlled to enter a low-power consumption state.
For example, when the main control circuit determines that the identification signal matches with the preset low-power consumption signal, a control signal is sent to the monitoring circuit through the communication bus in S401; when the control signal is acquired by the monitoring circuit, the monitoring circuit enters a low-power consumption state from an operation state; when the monitoring circuit enters a low power consumption state, the main control circuit actively cuts off the power supply of the battery to the main control circuit, so that the main control circuit also enters the low power consumption state; when the main control line and the monitoring line enter a low-power-consumption state, namely the battery management system enters the low-power-consumption state, the low-power-consumption control of the battery management system is completed.
In one possible implementation manner, the external electronic load of the battery output end is disconnected, the battery is connected to the device again, the device is connected to the battery and then begins to work again, the battery outputs voltage and triggers an internal wake-up signal, and the battery management system acquires the wake-up signal and enters the working state from the low-power consumption state.
Fig. 5 is a schematic diagram of an application scenario of a low power consumption control method of a battery management system according to an embodiment of the present application, as shown in fig. 5, in one possible implementation, a lithium battery 5 in a scenario is a battery in an automatic device that cannot communicate to the outside.
At this time, the lithium battery 5 is in an unused state, and the lithium battery management system 50 in the lithium battery 5 continuously consumes the electric power stored in the lithium battery 5, thereby reducing the storage life of the lithium battery 5.
At this time, a control load 52 is externally connected to the output end 51 of the lithium battery 5, the lithium battery 5 outputs a voltage to the control load 52, and in combination with a current control method preset on the control load 52, the lithium battery 5 obtains an analog current signal, the lithium battery management system 50 in the lithium battery 5 processes the analog current signal to obtain an identification signal, and determines according to the identification signal, if the identification signal accords with a preset low-power consumption signal, the lithium battery management system 50 enters a low-power consumption state, and no more electric energy stored in the lithium battery 5 is consumed, thereby improving the storage life of the lithium battery.
Fig. 6 is a schematic structural diagram of a low power consumption control device of a battery management system according to an embodiment of the present application. As shown in fig. 6, the low power consumption control device 6 of the battery management system of this embodiment includes: at least one processor 60 (only one is shown in fig. 6), a memory 61 and a computer program 62 stored in the memory 61 and executable on the at least one processor 60, the processor 60 implementing the steps in the low power consumption control method embodiments of any of the various battery management systems described above when executing the computer program 62.
The low power consumption control device 6 of the battery management system may be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server, etc. The low power consumption control device of the battery management system may include, but is not limited to, a processor 60, a memory 61. It will be appreciated by those skilled in the art that fig. 6 is merely an example of the low power consumption control device 6 of the battery management system, and does not constitute a limitation of the low power consumption control device 6 of the battery management system, and may include more or less components than those illustrated, or may combine certain components, or different components, such as an input-output device, a network access device, and the like.
The processor 60 may be a central processing unit (Central Processing Unit, CPU), the processor 60 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 61 may in some embodiments be an internal storage unit of the low power consumption control device 6 of the battery management system, such as a hard disk or a memory of the low power consumption control device 6 of the battery management system. The memory 61 may in other embodiments also be an external memory device of the low power consumption control device 6 of the battery management system, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which is provided on the low power consumption control device 6 of the battery management system. Further, the memory 61 may also include both an internal storage unit and an external storage device of the low power consumption control device 6 of the battery management system. The memory 61 is used for storing an operating system, application programs, boot loader (BootLoader), data, other programs, etc., such as program codes of the computer program. The memory 61 may also be used for temporarily storing data that has been output or is to be output.
It should be noted that, because the content of information interaction and execution process between the above devices/units is based on the same concept as the method embodiment of the present application, specific functions and technical effects thereof may be referred to in the method embodiment section, and will not be described herein.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
The embodiment of the application also provides a network device, which comprises: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor, which when executed by the processor performs the steps of any of the various method embodiments described above.
Embodiments of the present application also provide a computer readable storage medium storing a computer program which, when executed by a processor, implements steps for implementing the various method embodiments described above.
Embodiments of the present application provide a computer program product which, when run on a mobile terminal, causes the mobile terminal to perform steps that enable the implementation of the method embodiments described above.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiments, and may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include at least: any entity or device capable of carrying computer program code to a photographing device/terminal apparatus, recording medium, computer Memory, read-Only Memory (ROM), random access Memory (RAM, random Access Memory), electrical carrier signals, telecommunications signals, and software distribution media. Such as a U-disk, removable hard disk, magnetic or optical disk, etc. In some jurisdictions, computer readable media may not be electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/network device and method may be implemented in other manners. For example, the apparatus/network device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
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 technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The battery management system is characterized by being applied to a battery, and comprises a monitoring circuit and a main control circuit;
when an electronic load is connected to the output terminal of the battery, in the battery management system:
the monitoring circuit is used for collecting analog current signals; acquiring a digital current signal according to the analog current signal; the digital current signal is sent to the main control line, wherein the analog current signal is generated when the battery discharges to an electronic load;
the main control circuit is used for receiving the digital current signal sent by the monitoring circuit; acquiring an identification signal according to the digital current signal; and if the identification signal accords with a preset low-power consumption signal, controlling the battery management system to enter a low-power consumption state.
2. The battery management system of claim 1, wherein the electronic load is configured to control the current output from the battery according to a preset current control method when the battery is connected.
3. The battery management system of claim 1 wherein obtaining an identification signal from the digital current signal comprises:
decoding the digital current signal to obtain a pulse signal;
and determining the identification signal according to the pulse signal.
4. The battery management system of claim 1, wherein controlling the battery management system to enter a low power state if the identification signal corresponds to a preset low power signal comprises:
if the identification signal accords with a preset low-power consumption signal, the main control circuit controls the monitoring circuit to enter a low-power consumption state;
after the monitoring circuit enters a low power consumption state, the main control circuit enters the low power consumption state.
5. The low-power consumption control method of the battery management system is characterized in that the battery management system is applied to a battery, the battery management system comprises a monitoring circuit and a main control circuit, and the method is applied to the main control circuit in the battery management system;
when an electronic load is connected to the output terminal of the battery, the method includes:
obtaining a digital current signal obtained after conversion according to an analog current signal, wherein the analog current signal is generated when the battery discharges to an electronic load;
acquiring an identification signal according to the digital current signal;
and if the identification signal accords with a preset low-power consumption signal, controlling the battery management system to enter a low-power consumption state.
6. The method of claim 5, wherein the electronic load is configured to control the current output from the battery according to a preset current control method when the battery is connected.
7. The low power consumption control method according to claim 5, wherein acquiring the identification signal from the digital current signal comprises:
decoding the digital current signal to obtain a pulse signal;
and determining the identification signal according to the pulse signal.
8. The method of claim 5, wherein if the identification signal meets a preset low power consumption signal, controlling the battery management system to enter a low power consumption state comprises:
if the identification signal accords with a preset low-power consumption signal, controlling the monitoring circuit to enter a low-power consumption state;
after the monitoring circuit enters a low power consumption state, the main control circuit enters the low power consumption state.
9. A low power consumption control device of a battery management system, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 5 to 8 when executing the computer program.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method according to any one of claims 5 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310621887.5A CN116722615A (en) | 2023-05-29 | 2023-05-29 | Low-power consumption control method, equipment and storage medium of battery management system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310621887.5A CN116722615A (en) | 2023-05-29 | 2023-05-29 | Low-power consumption control method, equipment and storage medium of battery management system |
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| CN202310621887.5A Pending CN116722615A (en) | 2023-05-29 | 2023-05-29 | Low-power consumption control method, equipment and storage medium of battery management system |
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| CN (1) | CN116722615A (en) |
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