CN109038756B - Battery pack control method, device and system and battery pack - Google Patents
Battery pack control method, device and system and battery pack Download PDFInfo
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- CN109038756B CN109038756B CN201811016555.XA CN201811016555A CN109038756B CN 109038756 B CN109038756 B CN 109038756B CN 201811016555 A CN201811016555 A CN 201811016555A CN 109038756 B CN109038756 B CN 109038756B
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- 238000004891 communication Methods 0.000 claims description 16
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- H02J7/0026—
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a battery pack control method, a device and a system and a battery pack, which relate to the technical field of battery pack control and comprise the following steps: receiving the charge and discharge requirements of the battery pack; after receiving the charge and discharge requirements, monitoring the charge and discharge operation condition of the battery pack; and when the charging and discharging operation is abnormal, controlling the battery pack to stop charging and discharging. The invention can monitor the charge and discharge operation condition of the battery pack in real time, find the abnormity and stop the charge and discharge in time, thereby avoiding the damage of the battery pack caused by the abnormity of the battery pack in the charge and discharge process and prolonging the service life of the battery pack.
Description
Technical Field
The invention relates to the technical field of battery pack control, in particular to a battery pack control method, device and system and a battery pack.
Background
Since gasoline or diesel oil, which are used as power sources at present, are pollution and non-renewable energy sources, the use of electricity as a power source is a big trend in future development. The battery pack is a battery which integrates a plurality of small-size battery cores and can be used as a power source of large-scale equipment. Such as automobiles, lawn mowers, harvesters, and the like.
At present, when a battery pack is charged and discharged, if the conditions of overhigh charging and discharging current, overcharge, overdischarge, overhigh charging and discharging temperature, overlow charging and discharging temperature and the like occur, the battery pack may be damaged if the battery pack does not react in time, and the service life of the battery pack is influenced.
Disclosure of Invention
In view of the above, the present invention provides a battery pack control method, device, system and battery pack, which can monitor the charging and discharging operation condition of the battery pack in real time, find abnormality, and stop charging and discharging in time, so as to avoid damage to the battery pack caused by the abnormality of the battery pack during the charging and discharging process, and improve the service life of the battery pack.
In a first aspect, an embodiment of the present invention provides a battery pack control method, including:
receiving the charge and discharge requirements of the battery pack;
after receiving the charge and discharge requirements, monitoring the charge and discharge operation condition of the battery pack;
and when the charging and discharging operation is abnormal, controlling the battery pack to stop charging and discharging.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the operation abnormality includes the following situations: the battery pack has the advantages of over-high charging and discharging current, over-charge, over-discharge, over-high charging and discharging temperature, over-low charging and discharging temperature and abnormal cell voltage in the battery pack.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where after the step of receiving a charge and discharge requirement of a battery pack, the method further includes:
detecting whether voltage values among a plurality of battery cores in the battery pack are consistent;
if not, adjusting the charging and discharging current value according to the current charging and discharging voltage values of the plurality of battery cells so as to enable the voltage values among the plurality of battery cells to be consistent.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the adjusting the charge and discharge current value according to the current charge and discharge voltage values of the multiple battery cells to make the voltage values of the multiple battery cells consistent includes:
determining a high voltage value in current charge and discharge voltage values of a plurality of battery cells;
and decomposing the charge and discharge current values of the battery cells corresponding to the high voltage value so as to enable the voltages among the battery cells to be consistent.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the receiving a charge and discharge requirement of a battery pack includes:
and receiving the charging and discharging requirements of the battery pack triggered by the user through the key.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where after the step of receiving charge and discharge requirements of a battery pack, the method further includes:
detecting whether continuous current is output from a charging interface;
if yes, the display lamp is controlled to be normally on.
With reference to the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the controlling, when the charging and discharging operation is abnormal, the stopping of charging and discharging of the battery pack includes:
when the charging and discharging operation is abnormal, the charging and discharging circuit is controlled to be disconnected so as to stop charging and discharging the battery pack;
or when the charging and discharging operation is abnormal, a control instruction is generated and sent to the charging interface through the communication interface, so that the charging interface stops charging and discharging the battery pack.
In a second aspect, an embodiment of the present invention further provides a battery pack control apparatus, including:
the receiving module is used for receiving the charging and discharging requirements of the battery pack;
the monitoring module is used for monitoring the charging and discharging operation condition of the battery pack after receiving the charging and discharging requirement;
and the control module is used for controlling the battery pack to stop charging and discharging when the charging and discharging operation is abnormal.
In a third aspect, an embodiment of the present invention further provides a battery pack control system, including: the device comprises a temperature detector, a current detection module, a cell voltage detector, a display lamp, a communication interface, a hardware protection unit, a key, a charging and discharging circuit and a main controller; the main controller is respectively connected with the temperature detector, the current detection module, the cell voltage detector, the display lamp, the communication interface, the key and the charging and discharging circuit, and the main controller is used for implementing the steps of the method of any one of the embodiments when executing the computer program; the hardware protection unit is used for being connected with the battery pack so as to prevent the charging and discharging current of the battery pack from being overhigh.
In a fourth aspect, an embodiment of the present invention further provides a battery pack, including: a battery pack body and a battery pack control system according to the above embodiment; the battery pack body comprises a plurality of battery cells, and the battery cells are connected in series and/or in parallel.
The embodiment of the invention has the following beneficial effects: the charging and discharging requirements of the battery pack are received, the charging and discharging operation condition of the battery pack is monitored after the charging and discharging requirements are received, and the battery pack is controlled to stop charging and discharging when the charging and discharging operation is abnormal.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a battery pack control method according to an embodiment of the present invention;
fig. 2 is a flowchart of a battery pack control method according to another embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a manner of controlling a battery pack to stop charging and discharging according to an embodiment of the present invention;
fig. 4 is a flowchart of a charge balancing method according to an embodiment of the present invention;
fig. 5 is a structural diagram of a battery pack control apparatus according to an embodiment of the present invention;
fig. 6 is a structural diagram of a battery pack control system according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the battery pack control method, the battery pack control device, the battery pack control system and the battery pack, the charging and discharging operation condition of the battery pack can be monitored after the charging and discharging requirement is received by receiving the charging and discharging requirement of the battery pack, and the battery pack is controlled to stop charging and discharging when the charging and discharging operation is abnormal.
For the understanding of the present invention, the present invention will be described in detail by the following four examples,
the first embodiment is as follows:
an embodiment of the present invention provides a battery pack control method, which is shown in fig. 1 and includes:
s110: and receiving the charge and discharge requirements of the battery pack.
As for receiving the charge and discharge requirement of the battery pack provided in this embodiment, one way is to receive the charge and discharge requirement of the battery pack triggered by the user through the key. Specifically, a physical key is included on the battery pack side, and when a user touches the physical key, a request for charging or discharging the battery pack is sent to the battery pack. Optionally, the physical key may be in a concave-convex configuration form, or may also be in a form similar to a virtual key on the display screen, and the present invention is not limited specifically.
As for receiving the charge and discharge requirement of the battery pack, other methods may be: can send the charge-discharge demand of battery package through speech recognition's mode, for example, when installing speech recognition equipment and microphone in battery package side, when the user says to charge, the pronunciation of charging that the user sent is collected to the microphone, then, speech recognition equipment discerns, sends the discernment result for the master controller to make the master controller receive the charge-discharge demand of battery package. Of course, the charging and discharging requirements of the user on the battery pack can be input through a mouse, a keyboard and the like.
In order to enable smooth charging, after receiving the charging and discharging requirement of the battery pack according to the embodiment of the present invention, with reference to fig. 2, the method further includes:
s101: detecting whether continuous current is output from a charging interface; if yes, step S102 is performed, and if no, step S103 is performed.
Step S102: and controlling the display lamp to be normally on. Step S103: and controlling the display lamp to be turned off.
Specifically, after a charge and discharge request is sent through a key, the battery pack can be charged and discharged from the outside, a charge and discharge interface of the battery pack is a charge interface, and continuous current is required to be output when the charge and discharge interface is in a normal state. Optionally, the battery pack side further includes an electric quantity display, after the user triggers the button, the electric quantity display is controlled to display the electric quantity of the current battery pack, step S102 includes controlling the display lamp to be normally on and controlling the electric quantity display to display the electric quantity of the battery pack, and step S103 includes controlling the display lamp to be turned off and controlling the electric quantity display not to display the electric quantity of the battery pack.
Optionally, before the step of receiving the charge and discharge requirement of the battery pack, the method further includes: and powering up the battery pack.
S120: and after receiving the charge and discharge requirements, monitoring the charge and discharge operation condition of the battery pack.
Step S120 specifically, monitoring whether the charging and discharging current of the battery pack is too high, monitoring whether the charging and discharging of the battery pack has overcharge or overdischarge, and detecting whether the temperature of the battery pack is too high or too low in the charging and discharging process of the battery pack, and whether the voltage of the battery cell in the battery pack is abnormal.
S130: and when the charging and discharging operation is abnormal, the battery pack is controlled to stop charging and discharging.
Specifically, the operation abnormality includes the following cases: the battery pack has the advantages of over-high charging and discharging current, over-charge, over-discharge, over-high charging and discharging temperature, over-low charging and discharging temperature and abnormal cell voltage in the battery pack. Namely, when the charging and discharging current is too high, the battery pack is controlled to stop charging and discharging; when the battery pack is overcharged, controlling the battery pack to stop charging and discharging; when the battery pack is over-discharged, controlling the battery pack to stop charging and discharging; when the charging and discharging temperature of the battery pack is overhigh, controlling the battery pack to stop charging and discharging; when the charging and discharging temperature of the battery pack is too low, controlling the battery pack to stop charging and discharging; and when the voltage of the battery cell in the battery pack is abnormal, controlling the battery pack to stop charging and discharging.
Optionally, the method for controlling the battery pack to stop charging and discharging specifically includes two methods: one is to control the charging and discharging line to be disconnected when the charging and discharging operation is abnormal so as to stop charging and discharging the battery pack. Referring to fig. 3, a charging and discharging circuit diagram is shown, when the external power source 10 charges the battery pack 20, the charging and discharging circuit includes two MOS transistors, and the master controller 30 controls the two MOS transistors to operate respectively. Taking charging as an example, when the external power source 10 charges the battery pack 20, if the above abnormal operation condition is detected, the main controller 30 may send a low level signal to the MOS transistor 1, and then the MOS transistor 1 is turned off, so that the external power source 10 cannot be powered on through the MOS transistor 1.
And when the charging and discharging operation is abnormal, a control command is generated and sent to the charging interface through the communication interface, so that the charging interface stops charging and discharging the battery pack.
Optionally, when the battery pack is controlled to stop charging and discharging, the display lamp can be controlled to give an error indication, so that the user is prompted to pay attention.
In some embodiments, after the step of receiving the charging and discharging requirement of the battery pack, as shown in fig. 4, the method further includes:
s140: detecting whether voltage values among a plurality of battery cores in the battery pack are consistent;
s150: if not, adjusting the charging and discharging current value according to the current charging and discharging voltage values of the plurality of battery cells so as to enable the voltage values among the plurality of battery cells to be consistent.
Optionally, the implementation manner of step S150 is: determining a high voltage value in current charge and discharge voltage values of a plurality of battery cells, and decomposing the charge and discharge current value of the battery cell corresponding to the high voltage value so as to enable the voltages of the battery cells to be consistent.
Specifically, the high voltage value is a voltage value other than the minimum voltage value between the plurality of cells, for example, 4 cells, and one of the cells is the minimum, and three of the cells are determined as the high voltage value, so that the number of the cells on which the disassembly operation is performed is not necessarily one, and may be a plurality of cells. After the high voltage value is determined, the charging and discharging current values of the battery cell corresponding to the high voltage value are decomposed, the charging of the battery cell corresponding to the high voltage value is relatively less, and meanwhile, the charging and discharging current values of other corresponding battery cells except the high voltage value are unchanged, so that the voltage in the battery cell corresponding to the high voltage value can rise slowly, the rising speed of other battery cells is unchanged, and when the balance is detected, the adjusting process is released. For example: when the battery pack comprises the battery cell A, the battery cell B and the battery cell C, when the voltage of the battery cell C is detected to be higher than the voltages of the battery cell A and the battery cell B and the voltages of the battery cell A and the battery cell B are consistent, the voltage corresponding to the battery cell C can be determined to be a high-voltage value, the charging current of the battery cell C is decomposed, the voltage charged into the battery cell C is slow to rise, and when the voltage of the battery cell C is detected to be consistent, the command of decomposing the charging current of the battery cell C is removed.
In the charging process, the method further comprises the following steps: whether the battery pack is full is detected, and if the battery pack is full, the indicating lamp is controlled to perform full indication. And if the battery pack is not fully charged, controlling the charging interface to continuously charge the battery pack.
Example two:
an embodiment of the present invention provides a battery pack control apparatus, which is shown in fig. 5, and includes: a receiving module 510, a monitoring module 520, and a control module 530.
The receiving module 510 is configured to receive a charge/discharge requirement of the battery pack. And the monitoring module 520 is configured to monitor the charging and discharging operation condition of the battery pack after receiving the charging and discharging requirement. And the control module 530 is used for controlling the battery pack to stop charging and discharging when the charging and discharging operation is abnormal.
The device provided by the embodiment of the present invention has the same implementation principle and technical effect as the method embodiments, and for the sake of brief description, reference may be made to the corresponding contents in the method embodiments without reference to the device embodiments.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Example three:
an embodiment of the present invention provides a battery pack control system, which is shown in fig. 6 and includes: the device comprises a temperature detector 61, a current detection module 62, a cell voltage detector 63, a display lamp 64, a communication interface 65, a communication interface 66, a hardware protection unit 67, a key 68, a charging and discharging line 69 and a main controller 70; the main controller 70 is respectively connected to the temperature detector 61, the current detection module 62, the cell voltage detector 63, the display lamp 64, the communication interface 65, the communication interface 66, the key 68, and the charging/discharging line 69, and the main controller 70 is configured to implement the steps of the method according to any one of the first embodiments when executing the computer program; the hardware protection unit 67 is used for being connected with the battery pack to prevent the charge and discharge current of the battery pack from being too high, and when the charge and discharge current of the battery pack is too high and the main controller 70 cannot timely detect that the charge and discharge current is too high, the battery pack is protected to prevent the service life of the battery pack from being influenced by the too high charge and discharge current of the battery pack.
The temperature detector 61 is used for detecting the temperature of the battery pack in the charging and discharging process of the battery pack; the current detection module 62 is used for detecting the charging and discharging current of the battery pack; the cell voltage detector 63 is configured to detect a voltage of a cell in the battery pack; the display lamp 64 is used for displaying the electric quantity of the battery pack and displaying error report; the communication interface 65 is used for communication between the battery pack and the outside; the communication interface 66 is used for communication between the master controller 70 and the battery pack. The master controller 70 is configured to perform the steps of the method according to any one of the first embodiments to achieve stable and safe operation during charging and discharging of the battery pack.
Also included is Memory, which may comprise a high-speed Random Access Memory (RAM) and may also comprise non-volatile Memory, such as at least one disk Memory.
The memory is used for storing a program, and the master executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the flow process disclosed in any of the foregoing embodiments of the present invention may be applied to the master, or implemented by the master.
The master may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the master or by instructions in the form of software. The master controller may be a general master controller, including a Central Processing Unit (CPU), a Network master controller (NP), and the like; the device can also be a Digital Signal master (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. The general purpose master may be a micro-master or the master may be any conventional master etc. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding master controller, or implemented by a combination of hardware and software modules in the decoding master controller. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a master controller reads information in the memory and completes the steps of the method by combining hardware of the master controller.
Example four:
the embodiment provides a battery pack, including: a battery pack body and a battery pack control system according to the third embodiment described above; the battery pack body comprises a plurality of battery cells, and the battery cells are connected in series and/or in parallel.
In this regard, the battery pack is different from the conventional battery pack in that the battery pack control system according to the third embodiment enables the battery pack to stably and safely operate during charging and discharging, thereby improving the life of the battery pack.
In addition, the working principle of the battery pack body according to the embodiment of the present invention is known to those skilled in the art, and is not described in detail for reducing redundancy.
Unless specifically stated otherwise, the relative steps, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A battery pack control method, comprising:
receiving the charge and discharge requirements of the battery pack;
after receiving the charge and discharge requirements, monitoring the charge and discharge operation condition of the battery pack;
when the charging and discharging operation is abnormal, controlling the battery pack to stop charging and discharging;
wherein the operational anomaly comprises a condition of: the battery pack has the advantages that the battery pack is high in charging and discharging current, overcharge and overdischarge, high in charging and discharging temperature, low in charging and discharging temperature, and abnormal in cell voltage in the battery pack;
wherein after the step of receiving a charge and discharge demand of the battery pack, the method further comprises:
detecting whether voltage values among a plurality of battery cores in the battery pack are consistent;
if not, adjusting the charge-discharge current value according to the current charge-discharge voltage values of the plurality of battery cells so as to enable the voltage values among the plurality of battery cells to be consistent;
wherein, receiving the charge-discharge demand of battery package includes:
receiving a charge and discharge requirement of a battery pack triggered by a user through a key;
wherein after the step of receiving a charge and discharge demand of the battery pack, the method further comprises:
detecting whether continuous current is output from a charging interface;
if yes, controlling the display lamp to be normally on;
wherein, and when the operation of charging and discharging is unusual, control the battery package stops to charge and discharge, include:
when the charging and discharging operation is abnormal, the charging and discharging circuit is controlled to be disconnected so as to stop charging and discharging the battery pack;
or when the charging and discharging operation is abnormal, generating a control instruction, and sending the control instruction to the charging interface through the communication interface so that the charging interface stops charging and discharging the battery pack;
the adjusting of the charging and discharging current value according to the current charging and discharging voltage values of the plurality of battery cells to make the voltage values among the plurality of battery cells consistent comprises:
determining a high voltage value in current charge and discharge voltage values of a plurality of battery cells; the high voltage value is a voltage value except the minimum voltage value among the plurality of battery cores;
and decomposing the charge and discharge current values of the battery cells corresponding to the high voltage value so as to enable the voltages among the battery cells to be consistent.
2. A battery pack control apparatus, comprising:
the receiving module is used for receiving the charging and discharging requirements of the battery pack;
the monitoring module is used for monitoring the charging and discharging operation condition of the battery pack after receiving the charging and discharging requirement;
the control module is used for controlling the battery pack to stop charging and discharging when the charging and discharging operation is abnormal;
wherein the operational anomaly comprises a condition of: the battery pack has the advantages that the battery pack is high in charging and discharging current, overcharge and overdischarge, high in charging and discharging temperature, low in charging and discharging temperature, and abnormal in cell voltage in the battery pack;
wherein, after the monitoring module, the apparatus further comprises:
the detection module is used for detecting whether voltage values among a plurality of battery cores in the battery pack are consistent;
the adjusting module is used for adjusting the charging and discharging current value according to the current charging and discharging voltage values of the plurality of battery cells if the charging and discharging current values are not the same, so that the voltage values among the plurality of battery cells are consistent;
wherein the receiving module is configured to:
receiving a charge and discharge requirement of a battery pack triggered by a user through a key;
wherein after the receiving means, the apparatus further comprises:
the detection module is used for detecting whether continuous current output exists at the charging interface;
the display control module is used for controlling the display lamp to be normally on if the display control module is used for controlling the display lamp to be normally on;
wherein the control module is configured to:
when the charging and discharging operation is abnormal, the charging and discharging circuit is controlled to be disconnected so as to stop charging and discharging the battery pack;
or when the charging and discharging operation is abnormal, generating a control instruction, and sending the control instruction to the charging interface through the communication interface so that the charging interface stops charging and discharging the battery pack;
the adjusting of the charging and discharging current value according to the current charging and discharging voltage values of the plurality of battery cells to make the voltage values among the plurality of battery cells consistent comprises:
determining a high voltage value in current charge and discharge voltage values of a plurality of battery cells; the high voltage value is a voltage value except the minimum voltage value among the plurality of battery cores;
and decomposing the charge and discharge current values of the battery cells corresponding to the high voltage value so as to enable the voltages among the battery cells to be consistent.
3. A battery pack control system, comprising: the device comprises a temperature detector, a current detection module, a cell voltage detector, a display lamp, a communication interface, a hardware protection unit, a key, a charging and discharging circuit and a main controller; the main controller is respectively connected with the temperature detector, the current detection module, the cell voltage detector, the display lamp, the communication interface, the key and the charging and discharging circuit, and the main controller is used for implementing the steps of the method of claim 1 when executing a computer program; the hardware protection unit is used for being connected with the battery pack so as to prevent the charging and discharging current of the battery pack from being overhigh.
4. A battery pack, comprising: a battery pack body and a battery pack control system according to claim 3; the battery pack body comprises a plurality of battery cells, and the battery cells are connected in series and/or in parallel.
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