CN115756309A - Battery management equipment parameter storage method, battery management equipment and energy storage system - Google Patents
Battery management equipment parameter storage method, battery management equipment and energy storage system Download PDFInfo
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Abstract
The invention provides a parameter storage method of a battery management device, the battery management device and an energy storage system, wherein the method is applied to the battery management device which comprises an RAM module; the method comprises the following steps: after determining each battery parameter of the target battery module, selecting a battery parameter with a precision requirement larger than a preset precision requirement from each battery parameter to obtain a target battery parameter; the target battery module is a battery module connected with the battery management equipment; storing the target battery parameters to a target preset partition of the RAM module; wherein the target pre-set partition is pre-configured with an attribute that does not respond to the warm-reset operation. The invention can improve the data precision of the battery parameters stored by the battery management equipment.
Description
Technical Field
The invention belongs to the technical field of battery management, and particularly relates to a parameter storage method of battery management equipment, the battery management equipment and an energy storage system.
Background
Batteries are widely used in various industries as a common energy storage medium, and on the basis, battery management equipment is produced in order to realize the management of the batteries.
After obtaining the battery parameters, the battery management device stores the battery parameters so as to display the battery parameters or judge the battery state in the following process. However, due to the existence of the hot reset condition in the memory of the battery management device, the data accuracy of the battery parameters is easily affected in the data clearing and reloading processes of the battery parameters. In the prior art, a memory recovery scheme exists, but even if the battery parameters are recovered after the thermal reset, the data accuracy of the battery parameters may be affected due to the fact that the battery parameters are transferred and stored between different memories.
Therefore, how to improve the data accuracy of the battery parameters stored in the battery management device becomes a problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a parameter storage method of a battery management device, the battery management device and an energy storage system, so as to improve the data accuracy of battery parameters stored by the battery management device.
In order to achieve the above object, the technical solution adopted by the present invention is to provide a method for storing parameters of a battery management device, wherein the method for storing parameters of a battery management device is applied to a battery management device, and the battery management device includes an RAM module; the battery management equipment parameter storage method comprises the following steps:
after determining each battery parameter of a target battery module, selecting a battery parameter with a precision requirement larger than a preset precision requirement from the battery parameters to obtain a target battery parameter;
the target battery module is a battery module connected with the battery management equipment;
storing the target battery parameters to a target preset partition of the RAM module;
wherein the target pre-set partition is pre-configured with an attribute that does not respond to a warm reset operation.
In a possible implementation manner, the battery management device further includes a flash module, and the battery management device parameter storage method further includes:
judging whether the target battery parameters stored in the target preset partition reach preset unloading conditions or not;
and if the target battery parameters stored in the target preset partition reach a preset unloading condition, unloading the target battery parameters stored in the target preset partition to the flash module.
In a possible implementation manner, the target battery parameters stored in the target preset partition are parameters before numerical value conversion; the transferring the target battery parameters stored in the target preset partition to the flash module comprises:
performing numerical value conversion on the target battery parameters stored in the target preset partition, and transferring the battery parameters subjected to numerical value conversion to the false module;
the numerical value conversion is used for converting binary representation codes adopted when the battery management equipment stores the battery parameters into numerical values corresponding to the physical meanings of the battery parameters.
In a possible implementation manner, the preset unloading condition is:
the parameter difference between the target battery parameter at the last moment and the current moment reaches a threshold corresponding to the target battery parameter; and the threshold value corresponding to the target battery parameter is determined by the real-time requirement of the target battery parameter.
In a possible implementation manner, the method for storing parameters of a battery management device further includes:
and after the RAM module is subjected to cold reset, recovering the target battery parameters transferred and stored in the flash module to the target preset partition.
In a possible implementation manner, the method for storing parameters of a battery management device further includes:
configuring a partition in the RAM module to not respond to the property of a warm reset operation.
In one possible implementation, the configuring a partition in the RAM module to not respond to the property of the warm reset operation includes:
adding a feature code to a partition in the RAM module to configure the partition as an attribute that does not respond to a warm reset operation;
the battery management device parameter storage method further comprises the following steps:
when the RAM module is subjected to hot reset, detecting whether each partition of the RAM module contains the feature code; and if detecting that a certain partition in the RAM module contains the feature code, not resetting the partition.
In a possible implementation manner, the method for storing parameters of a battery management device further includes:
adding a check code for the target battery parameter in the target preset partition;
the check code is used for checking the target battery parameters in the target preset partition after the RAM module is subjected to thermal reset.
In another aspect of the present invention, there is also provided a battery management device, including a memory, a processor and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the above-mentioned battery management device parameter storage method when executing the computer program.
In another aspect of the present invention, an energy storage system is further provided, including: a battery module and the above-described battery management apparatus; the battery management device is connected with the battery module.
The parameter storage method of the battery management equipment, the battery management equipment and the energy storage system have the advantages that:
according to the invention, the target preset partition is planned in the RAM module in advance, and the target preset partition does not respond to the hot reset operation, namely, the target preset partition does not clear data when the RAM module is subjected to the hot reset. On the basis, the target battery parameters with higher precision requirements are extracted according to the precision requirements of the battery parameters, and the target battery parameters with higher precision requirements are stored into the target preset subarea. Based on the scheme, the method and the device can ensure that the target battery parameters with higher precision requirements cannot be cleared during thermal reset, so that the data precision of the battery parameters stored by the battery management equipment is improved. In addition, all battery parameters are not stored in the target preset partition, so that the data precision can be improved, and the original read-write efficiency of the RAM module can be ensured as much as possible.
In summary, the present invention effectively solves the problems in the prior art.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flowchart illustrating a method for storing parameters of a battery management device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a battery management scenario according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a battery management device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic flow chart of a method for storing parameters of a battery management device according to an embodiment of the present invention.
The method for storing the parameters of the battery management equipment provided by the embodiment of the invention is applied to the battery management equipment, and the battery management equipment is used for managing the battery module connected with the battery management equipment. The execution subject of the battery management device parameter storage method may be a processor in the battery management device. The battery management device may be a main battery management device or an auxiliary battery management device. The aforementioned battery module is a generic term, and may specifically be a battery pack (which may include a plurality of battery sub-modules), a battery cabinet (or a battery cluster, which may include a plurality of battery packs), a battery system (which may include a plurality of battery cabinets), and the like, which are not limited herein. With respect to the battery management device and the battery module, reference may be made to fig. 2, fig. 2 shows a battery management scenario, as shown in fig. 2, fig. 2 exemplifies that one battery cabinet includes 20 battery sub-modules, where 1 st, 2 nd, nth cabinets and the like refer to battery cabinets, and module 1, module 2, \\ 8230, module 20 and the like refer to battery sub-modules, MBMU refers to a master battery management system, and MBMU may directly or indirectly manage the battery cabinets/battery sub-modules through communication with other relevant modules. The SBMU represents an auxiliary battery management system provided in the battery cabinet. Both the MBMU and the SBMU can be used as the battery management device described in the embodiments of the present invention. Accordingly, when the SBMU is used as the battery management device described in the embodiment of the present invention, the battery module in the embodiment of the present invention refers to a battery cabinet, and when the MBMU is used as the battery management device described in the embodiment of the present invention, the battery module in the embodiment of the present invention refers to a battery system.
The battery management apparatus in the embodiment of the present invention includes a RAM (random access memory) module. On this basis, the battery management device parameter storage method comprises the following steps:
s101: after determining each battery parameter of the target battery module, selecting a battery parameter with a precision requirement larger than a preset precision requirement from each battery parameter to obtain a target battery parameter.
The target battery module is connected with the battery management equipment, and the target battery parameter is a battery parameter with high precision requirement.
In this embodiment, the battery parameter of the target battery module may be a battery voltage, a battery current, a battery SOC (i.e., a state of charge of the battery), a battery SOP (i.e., a power state of the battery), a battery SOH (i.e., a state of health of the battery), and the like.
In this embodiment, the data accuracy required by the different types of battery parameters is different, and in this embodiment, each battery parameter may be divided into two categories according to the data accuracy requirement corresponding to each battery parameter, where one category is a target battery parameter with a higher data accuracy requirement (i.e., a battery parameter with an accuracy requirement greater than a preset accuracy requirement), and the other category is a battery parameter with a lower data accuracy requirement (i.e., a battery parameter with an accuracy requirement not greater than a preset accuracy requirement), and the battery parameters with different data accuracy requirements are processed in different manners.
S102: and storing the target battery parameters to a target preset partition of the RAM module.
Wherein the target pre-set partition is pre-configured with an attribute that does not respond to the warm-reset operation.
In this embodiment, the target preset partition may be planned in advance, and the target preset partition is configured with an attribute that does not respond to the hot reset operation in advance. The target preset partition does not respond to the hot reset operation, namely, when the RAM module is subjected to hot reset, the target preset partition does not clear data.
On this basis, the partition in the RAM module other than the target preset partition may be marked as a non-attribute partition. When data storage is carried out, the target battery parameters with high data precision requirements can be stored into the target preset partition, and the battery parameters with low data precision requirements can be stored into the attribute-free partition, so that the data precision of the battery parameters stored by the battery management equipment is improved while the read-write performance of the RAM module is ensured.
As can be seen from the above description, in the embodiment of the present invention, the target preset partition is planned in the RAM module in advance, and the target preset partition does not respond to the hot reset operation, that is, the target preset partition does not clear data when the RAM module is subjected to the hot reset. On the basis, the target battery parameters with higher precision requirements are extracted according to the precision requirements of all the battery parameters, and the target battery parameters with higher precision requirements are stored in the target preset partition. Based on the scheme, the embodiment of the invention can ensure that the target battery parameters with higher precision requirements cannot be cleared during the thermal reset, thereby improving the data precision of the battery parameters stored by the battery management equipment. In addition, because all battery parameters are not stored in the target preset partition, the data precision can be improved, and the original read-write efficiency of the RAM module can be ensured as much as possible.
In summary, the embodiments of the present invention effectively solve the problems in the prior art.
In a possible implementation manner, the battery management device further includes a flash module (this flash refers to a flash memory), and the battery management device parameter storage method further includes:
and judging whether the target battery parameters stored in the target preset partition reach the preset unloading condition or not.
And if the target battery parameters stored in the target preset partition reach the preset unloading condition, unloading the target battery parameters stored in the target preset partition to the flash module.
In this embodiment, in order to ensure that data is not lost, a certain transfer condition may be preset, and when the target battery parameter stored in the target preset partition reaches the preset transfer condition, the target battery parameter stored in the target preset partition is transferred to the flash module. After the battery management equipment performs cold reset operation, target battery parameters stored in the target preset partition can be recovered through the flash module. That is, even though the target preset partition is planned in advance in the embodiment of the present invention, a certain unloading condition may be set to unload the target battery parameter stored in the target preset partition to the flash module in consideration that the data in the target preset partition is lost when the cold reset operation is performed, so as to avoid the loss of the data.
In this embodiment, in addition to transferring the target transfer parameter in the target preset partition to the flash module, a first battery parameter of a partition without an attribute in the RAM module may also be transferred to the flash module, where the first battery parameter refers to a battery parameter having an actual application requirement, for example, a battery parameter having a display requirement. On the basis, after the battery management equipment is reset, the first battery parameter stored in the attribute-free partition can be recovered through the flash module. Wherein the reset operation includes a cold reset operation and a hot reset operation.
On the basis, a preset unloading rule can be set to unload the battery parameters in the RAM module to the flash module. The preset unloading rule may be: and the unloading interval of the battery parameters in the target preset partition is greater than that of the battery parameters in the attribute-free partition. The definition of the attribute-free partition is the same as that of the previous embodiment, which refers to a partition in the RAM module except for the target default partition.
In order to avoid data loss, in the prior art, a battery parameter is generally transferred to a flash module when a change in a certain battery parameter of the RAM module is detected, so as to ensure accuracy of the battery parameter. The target preset partition is planned in advance, and the target preset partition can prevent the target battery parameter from being lost during hot reset, so that the data with higher precision requirement stored in the target preset partition can support higher data unloading interval, the refreshing frequency of the flash module can be effectively reduced, and the service life of the false module can be prolonged.
In this embodiment, the dump condition corresponding to the target battery parameter can be set according to the actual application requirement of the battery parameter. For example, a target battery parameter is battery SOC, and a specific application requirement is to display battery power percentage. When the battery power percentage is displayed, the corresponding battery SOC is extracted from the flash in real time so as to display the battery power percentage. Considering that the user may pay more attention to the percentage of battery charge and want to obtain a relatively accurate state of battery charge, the predetermined dump condition may be that the false module is refreshed once every time the percentage of battery charge decreases by 1% (that is, every time the SOC of the battery stored in the RAM module decreases by a certain value), and the latest percentage of battery charge is displayed. Similarly, if a target battery parameter is battery current, the specific application requirement is also to display the battery current. At this time, considering that the battery current is the sampled instantaneous quantity, the preset dump condition may be set to refresh once false after sampling, and the latest battery current is displayed.
In one possible implementation manner, the target battery parameter stored in the target preset partition is a parameter before the numerical value conversion is performed. Transferring target battery parameters stored in a target preset partition to a flash module, comprising:
and performing numerical value conversion on the target battery parameters stored in the target preset partition, and transferring the battery parameters subjected to the numerical value conversion to the false module.
The numerical value conversion is used for converting binary representation codes adopted when the battery management equipment stores the battery parameters into numerical values corresponding to the physical meanings of the battery parameters.
For a better understanding of the present embodiment, the following are examples:
referring to the above-mentioned embodiment, assuming that the battery SOC of the target battery module is 50%, when the battery management device records the target battery parameter (battery SOC), the target battery module is usually stored in machine language, for example, binary data types with different lengths such as 8 bits, 16 bits, and 32 bits can be used for data recording, and the battery SOC cannot be directly expressed by 0.5 (i.e. 50%).
For example, a 16-bit binary data type is used to store the battery parameter, and when each binary bit is 1, the corresponding stored value is "1111111111111" (for convenience of description, the subsequent description of the embodiment adopts a decimal manner, that is, the corresponding stored value is "65535"), and then when 50% of the battery is recorded, the corresponding actual recorded value will be (65535 + 1)/2-1 =32767 (both 1 plus and 1 minus are counted from 0), and this 32767 is the "binary signature code adopted when the battery management device stores the battery parameter" described in the embodiment (for convenience of description, the decimal value is adopted when the description is made, and the binary format is adopted when there is a record 32767 in the actual battery management device). Therefore, when the actual data application is performed, the target battery parameter needs to be converted into a value corresponding to the physical meaning of the target battery parameter, for example, 32767 is converted into 0.5 in this example (where 0.5 is the "value corresponding to the physical meaning of the battery parameter" described in this embodiment). On the basis, when the subsequent battery electric quantity percentage display is carried out, the battery electric quantity percentage numerical value of 50% "corresponding to 0.5" can be displayed.
That is, before data conversion, the battery management device stores the most original data in the memory, and after data conversion, the data corresponding to the physical meaning of the battery parameters is obtained.
As can be seen from the above description, in this embodiment, when the RAM module stores the target battery parameter, the parameter before performing the numerical value conversion is stored, and the numerical value conversion is performed only when it is determined that the corresponding data needs to be transferred to the flash.
In a possible implementation manner, the preset unloading condition is:
and the parameter difference between the target battery parameter at the last moment and the current moment reaches a threshold corresponding to the target battery parameter. The threshold corresponding to the target battery parameter is determined by the real-time requirement of the target battery parameter.
In this embodiment, only when the change of the target battery parameter reaches a certain degree, the data is transferred and the flash is refreshed, so that the refreshing frequency of the flash module can be reduced, and the service life of the flash module is prolonged.
In this embodiment, the threshold corresponding to the target battery parameter may be determined by the real-time requirement of the target battery parameter, the threshold corresponding to the target battery parameter may be smaller for the target battery parameter with higher real-time requirement, and the threshold corresponding to the target battery parameter may be larger for the target battery parameter with lower real-time requirement. That is, the magnitude of the threshold corresponding to the target battery parameter is inversely related to the real-time requirement of the target battery parameter.
In this embodiment, referring to the above embodiment, if the first battery parameter in the attribute-free partition is also transferred, the threshold corresponding to the battery parameter may also be determined by the storage location of the battery parameter. And the threshold value corresponding to the battery parameter stored in the target preset partition is greater than the threshold value corresponding to the battery parameter stored in the attribute-free partition. The definition of the attribute-free partition is the same as that of the previous embodiment, and refers to a partition in the RAM module except for the target default partition.
In this embodiment, for example, the storage of the battery parameter is taken as an example, in order to avoid the loss of data, in the prior art, when it is detected that a certain battery parameter of the RAM module has a change, the battery parameter is generally transferred to the flash module, so as to ensure the accuracy of the battery parameter, but obviously, the data transfer mode (or the refresh mode of the flash module) greatly increases the refresh frequency of the flash module, which results in affecting the service life of the flash module. The target preset partition is planned in advance, and the target preset partition can prevent the target battery parameter from being lost during hot reset, so that data with higher precision requirements stored in the target preset partition can support a higher threshold value and correspond to a larger unloading interval, the refreshing times of the flash module are reduced, and the service life of the false module is prolonged.
On the basis of the embodiment, in consideration of the cold reset situation, a redundant power supply can be added to the battery management equipment, the cold reset times of the battery management equipment are reduced in a mode of avoiding power failure of the battery management equipment, the refreshing times of the flash module are further reduced, and the service life of the flash module is prolonged.
In one possible implementation manner, the method for storing parameters of a battery management device further includes:
and after the RAM module is subjected to cold reset, recovering the target battery parameters transferred and stored in the flash module to a target preset partition.
In this embodiment, a data recovery scheme is further provided, that is, after the cold reset, the target battery parameters transferred from the flash module are recovered to the target preset partition, so as to ensure that the data is not lost.
In this embodiment, referring to the foregoing embodiment, if the first battery parameter in the attribute-free partition is also transferred, the method for storing parameters of a battery management device according to an embodiment of the present invention may further include: and after the RAM module is reset, restoring the first battery parameter which is transferred and stored in the flash module to the partition without the attribute. Wherein the reset comprises a cold reset and a hot reset.
For the present embodiment, it should be further noted that, because the target preset partition is planned in advance, when the hot reset occurs, the target battery parameter with higher data accuracy requirement does not need to be recovered through the flash module, which avoids the problem that the data accuracy is affected in the data recovery process.
The following is a detailed description of the problem affecting data accuracy during data recovery:
referring to the above embodiments, a certain battery parameter is the battery SOC, and the specific application requirement is to display the battery power percentage. In the actual application process, the RAM module stores an accurate battery SOC value, for example, the battery SOC is 50.1%, and then the RAM module stores 50.1% (which may be in the form of a binary token or a value corresponding to the physical meaning of the battery parameter), but in consideration of the actual display requirement, when 50.1% of the battery SOC value is transferred to the flash module, the battery SOC value stored by the flash module is 50%. Similarly, the battery SOC is 50.2%, then the RAM module stores 50.2%, and the flash module may store 50%.
In this case, if the battery management device is subjected to a hot reset operation, and data of the flash module needs to be restored to the RAM module, "the actual battery SOC is 50.2%, but the data restored from the flash module is 50%" which may cause the accuracy of the restored battery parameters to be impaired, and when the battery parameters are applied to other calculation processes, a calculation error may be caused.
Therefore, the situation is effectively avoided after the target preset partition is planned in advance, and the data accuracy of the battery parameters stored by the battery management equipment is ensured.
In a possible implementation manner, the method for storing parameters of a battery management device further includes:
a partition in the RAM module is configured to not respond to the nature of the warm reset operation.
In one possible implementation, configuring a partition in the RAM module to not respond to the property of the warm reset operation includes:
a feature code is added to a partition in a RAM module to configure the partition to not respond to the property of a warm reset operation.
The battery management device parameter storage method further comprises:
when the RAM module is subjected to hot reset, whether each partition of the RAM module contains the feature code is detected. And if detecting that a certain partition in the RAM module contains the feature code, not resetting the partition.
In this embodiment, the method for storing parameters of a battery management device may further include a step of configuring attributes, that is, a step of planning a target preset partition. In this embodiment, after a partition in the RAM module is configured as an attribute that does not respond to the hot reset operation, the partition becomes the target default partition.
In this embodiment, the identification of the partition may be implemented by adding a feature code, so as to implement the predetermined partition attribute.
In one possible implementation manner, the method for storing parameters of a battery management device further includes:
and adding a check code for the target battery parameter in the target preset partition.
The check code is used for checking the target battery parameters in the target preset partition after the RAM module is subjected to thermal reset.
In this embodiment, a CRC check code may also be added to the target battery parameter in the target preset partition, where the check code is used to check the target battery parameter in the target preset partition after the RAM module is subjected to the hot reset, and after the check is passed, the corresponding target battery parameter may be used continuously. The scheme can effectively enhance the reliability of the data stored in the target preset partition.
In another aspect of the present invention, there is also provided a battery management apparatus 300 including: one or more processors 301, one or more input devices 302, one or more output devices 303, and one or more memories 304. The processor 301, the input device 302, the output device 303, and the memory 304 are in communication with each other via a communication bus 305. The memory 304 is used to store a computer program comprising program instructions. Processor 301 is operative to execute program instructions stored in memory 304. Wherein the processor 301 is configured to invoke program instructions to perform the steps of the above-described method embodiments. It should be understood that, in the embodiment of the present invention, the processor 301 may be a Central Processing Unit (CPU). The processor may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The input device 302 may include a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of the fingerprint), a microphone, etc., and the output device 303 may include a display (LCD, etc.), a speaker, etc. The memory 304 may include both read-only memory and random-access memory and provides instructions and data to the processor 301. A portion of the memory 304 may also include non-volatile random access memory. For example, the memory 304 may also store device type information. In a specific implementation manner, the processor 301, the input device 302, and the output device 303 described in the embodiment of the present invention may execute the implementation manners described in the first embodiment and the second embodiment of the method for storing parameters of a battery management device provided in the embodiment of the present invention.
In another aspect of the present invention, an energy storage system is further provided, including:
a battery module and the above-described battery management device, the battery management device being connected to the battery module.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A parameter storage method of a battery management device is characterized in that the parameter storage method of the battery management device is applied to the battery management device, and the battery management device comprises an RAM module; the battery management equipment parameter storage method comprises the following steps:
after determining each battery parameter of a target battery module, selecting a battery parameter with a precision requirement larger than a preset precision requirement from the battery parameters to obtain a target battery parameter;
the target battery module is a battery module connected with the battery management equipment;
storing the target battery parameters to a target preset partition of the RAM module;
wherein the target pre-set partition is pre-configured with an attribute that does not respond to a warm reset operation.
2. The battery management device parameter storage method according to claim 1, wherein the battery management device further includes a flash module, the battery management device parameter storage method further comprising:
judging whether the target battery parameters stored in the target preset partition reach preset unloading conditions or not;
and if the target battery parameters stored in the target preset partition reach a preset unloading condition, unloading the target battery parameters stored in the target preset partition to the flash module.
3. The battery management apparatus parameter storage method according to claim 2, wherein the target battery parameter stored in the target preset partition is a parameter before numerical value conversion; the transferring the target battery parameters stored in the target preset partition to the flash module comprises:
performing numerical value conversion on the target battery parameters stored in the target preset partition, and transferring the battery parameters subjected to numerical value conversion to the false module;
the numerical value conversion is used for converting binary representation codes adopted when the battery management equipment stores the battery parameters into numerical values corresponding to the physical meanings of the battery parameters.
4. The battery management apparatus parameter storage method according to claim 2, wherein the preset dump condition is:
the parameter difference between the target battery parameter at the last moment and the current moment reaches a threshold corresponding to the target battery parameter; and the threshold value corresponding to the target battery parameter is determined by the real-time requirement of the target battery parameter.
5. The battery management apparatus parameter storage method according to claim 2, wherein the battery management apparatus parameter storage method further comprises:
and after the RAM module is subjected to cold reset, recovering the target battery parameters transferred and stored in the flash module to the target preset partition.
6. The battery management apparatus parameter storage method according to any one of claims 1 to 5, wherein the battery management apparatus parameter storage method further comprises:
configuring a partition in the RAM module to not respond to the property of a warm reset operation.
7. The battery management device parameter storage method of claim 6 wherein said configuring a partition in said RAM module to be unresponsive to the attributes of a warm reset operation comprises:
adding a feature code to a partition in the RAM module to configure the partition as an attribute that does not respond to a warm reset operation;
the battery management equipment parameter storage method further comprises the following steps:
when the RAM module is subjected to hot reset, detecting whether each partition of the RAM module contains the feature code; and if detecting that a certain partition in the RAM module contains the feature code, not resetting the partition.
8. The battery management apparatus parameter storage method according to any one of claims 1 to 5, wherein the battery management apparatus parameter storage method further comprises:
adding a check code for the target battery parameter in the target preset partition;
the check code is used for checking the target battery parameters in the target preset partition after the RAM module is subjected to hot reset.
9. A battery management apparatus comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 8 when executing the computer program.
10. An energy storage system, comprising: a battery module and the battery management apparatus of claim 9; the battery management device is connected with the battery module.
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