A detection method and device of a sampling wire harness of a power battery, and an electronic device
By acquiring the total number of cell strings and cell voltage of the battery module, and combining the number of cell strings and the number of channels, the continuity of the sampling harness is determined by detecting the voltage. This solves the problem of low detection efficiency in existing technologies and enables accurate and efficient detection of sampling harness faults.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-30
- Publication Date
- 2026-03-17
AI Technical Summary
Existing technologies cannot accurately detect pin errors and internal short circuits in the power battery sampling harness, resulting in low detection efficiency and a high risk of errors.
By acquiring the total number of cell strings and cell voltage of the battery module, and combining the number of cell strings and the number of channels, the continuity of the sampling harness is determined by detecting the voltage. Multiple judgment methods are adopted to improve the detection accuracy and efficiency.
It enables accurate detection of sampling harness faults, prevents pin errors, improves detection efficiency, simplifies the detection process, and reduces judgment time.
Smart Images

Figure CN115421071B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery testing technology, and more specifically, to a method, apparatus, electronic device, and computer-readable storage medium for testing a sampling harness of a power battery. Background Technology
[0002] During the assembly of power batteries, the battery module or cell may be burned out due to a short circuit caused by an error in the low-voltage wiring harness. Therefore, it is necessary to perform continuity testing on each wiring harness.
[0003] Existing technologies detect continuity or breakage in wire harnesses by measuring resistance, but they cannot identify issues such as incorrect input pin definitions at the wire harness ends or internal short circuits within the wire harness. These problems lead to errors during wire harness testing and result in low testing efficiency, failing to meet usage requirements. Summary of the Invention
[0004] The purpose of this application is to provide a method, apparatus, electronic device, and computer-readable storage medium for detecting sampling harnesses of power batteries, which can accurately detect faults in the sampling harnesses, prevent pin errors in the sampling harnesses, and improve detection efficiency.
[0005] In a first aspect, embodiments of this application provide a method for detecting a sampling harness of a power battery, the method comprising:
[0006] Obtain the total number of battery cells in series and the cell voltage of the battery module;
[0007] Extract the number of battery cells connected in series corresponding to the battery cell voltage;
[0008] Determine whether the number of battery cell strings is less than or equal to the total number of battery cell strings;
[0009] If so, the first on / off information of the sampling harness is obtained based on the number of battery cell strings and the total number of battery cell strings;
[0010] If not, obtain the second on / off information of the sampling harness.
[0011] In the above implementation process, the continuity of the sampling harness is judged based on the cell voltage and the number of cells in series, which can accurately detect the faults in the sampling harness, prevent pin errors of the sampling harness, and improve detection efficiency.
[0012] Further, the step of obtaining the first continuity information of the sampling harness based on the number of battery cell strings and the total number of battery cell strings includes:
[0013] Obtain the detection voltage of the sampling harness;
[0014] Determine whether the detected voltage is within a preset range;
[0015] If so, change the number of battery cell strings, and obtain the first on / off information of the sampling harness based on the changed number of battery cell strings and the total number of battery cell strings;
[0016] If not, obtain the first on / off information, where the first on / off information is the open circuit state of the sampling harness.
[0017] In the above implementation process, judging the continuity of the sampling harness based on the detection voltage can detect more continuity information, prevent internal short circuits and pin errors in the sampling harness, and save judgment time.
[0018] Further, the step of obtaining the second on / off information of the sampling harness includes:
[0019] Get the number of channels for the battery module;
[0020] The second on / off information of the sampling harness is obtained based on the number of channels and the number of battery cells in series.
[0021] In the above implementation process, the second on / off information of the sampling harness is obtained based on the number of channels, which increases the judgment of the sampling harness, making the fault of the sampling harness clearer and more obvious, and improving the detection accuracy.
[0022] Further, the step of obtaining the second on / off information of the sampling harness based on the number of channels and the number of battery cells in series includes:
[0023] Determine whether the number of battery cells in series is less than or equal to the number of channels;
[0024] If so, obtain the detection voltage of the sampling harness;
[0025] If the detection voltage is 0, change the number of battery cells in series, and obtain the second on / off information of the sampling harness based on the changed number of battery cells in series and the number of channels;
[0026] If the detected voltage is not 0, the second on / off information is obtained, and the second on / off information indicates an abnormal state of the sampling harness.
[0027] In the above implementation process, the detection voltage is used to further determine whether the sampling harness is abnormal, which simplifies the detection process of the sampling harness and can effectively detect the specific fault conditions of the sampling harness.
[0028] Secondly, embodiments of this application also provide a detection device for a sampling harness of a power battery, the device comprising:
[0029] The acquisition module is used to acquire the total number of battery cells in series and the cell voltage of the battery module;
[0030] The extraction module is used to extract the number of battery cells in series corresponding to the battery cell voltage;
[0031] The judgment module is used to determine whether the number of battery cell strings is less than or equal to the total number of battery cell strings; if yes, it obtains the first on / off information of the sampling harness based on the number of battery cell strings and the total number of battery cell strings; if no, it obtains the second on / off information of the sampling harness.
[0032] In the above implementation process, the continuity of the sampling harness is judged based on the cell voltage and the number of cells in series, which can accurately detect the faults in the sampling harness, prevent pin errors of the sampling harness, and improve detection efficiency.
[0033] Furthermore, the determination module is also used for:
[0034] The first acquisition unit is used to acquire the detection voltage of the sampling harness;
[0035] The first judgment unit is used to determine whether the detection voltage is within a preset range;
[0036] If so, change the number of battery cell strings, and obtain the first on / off information of the sampling harness based on the changed number of battery cell strings and the total number of battery cell strings;
[0037] If not, obtain the first on / off information, where the first on / off information is the open circuit state of the sampling harness.
[0038] In the above implementation process, judging the continuity of the sampling harness based on the detection voltage can detect more continuity information, prevent internal short circuits and pin errors in the sampling harness, and save judgment time.
[0039] Furthermore, the acquisition module is also used for:
[0040] Get the number of channels for the battery module;
[0041] The second on / off information of the sampling harness is obtained based on the number of channels and the number of battery cells in series.
[0042] In the above implementation process, the second on / off information of the sampling harness is obtained based on the number of channels, which increases the judgment of the sampling harness, making the fault of the sampling harness clearer and more obvious, and improving the accuracy of detection.
[0043] Furthermore, the determination module is also used for:
[0044] Determine whether the number of battery cells in series is less than or equal to the number of channels;
[0045] If so, obtain the detection voltage of the sampling harness;
[0046] If the detection voltage is 0, change the number of battery cells in series, and obtain the second on / off information of the sampling harness based on the changed number of battery cells in series and the number of channels;
[0047] If the detected voltage is not 0, the second on / off information is obtained, and the second on / off information indicates an abnormal state of the sampling harness.
[0048] In the above implementation process, the detection voltage is used to further determine whether the sampling harness is abnormal, which simplifies the detection process of the sampling harness and can effectively detect the specific fault conditions of the sampling harness.
[0049] Thirdly, an electronic device provided in this application includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method as described in any of the first aspects.
[0050] Fourthly, embodiments of this application provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method described in any of the first aspects.
[0051] Fifthly, embodiments of this application provide a computer program product that, when run on a computer, causes the computer to perform the method described in any of the first aspects.
[0052] Other features and advantages of this disclosure will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the techniques described above.
[0053] It can be implemented in accordance with the contents of the specification. The preferred embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0054] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0055] Figure 1 A schematic flowchart illustrating the detection method for the sampling harness of a power battery provided in this application embodiment;
[0056] Figure 2 A schematic diagram of the structural composition of the detection device for the sampling harness of the power battery provided in the embodiments of this application;
[0057] Figure 3 This is a schematic diagram of the structural composition of the electronic device provided in the embodiments of this application. Detailed Implementation
[0058] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.
[0059] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0060] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.
[0061] Example 1
[0062] Figure 1 This is a schematic flowchart of the detection method for the sampling harness of a power battery provided in an embodiment of this application, as shown below. Figure 1 As shown, the method includes:
[0063] S1, obtain the total number of battery cells in series and the cell voltage of the battery module;
[0064] S2, extract the number of battery cells in series corresponding to the battery cell voltage;
[0065] S3, determine if the number of battery cell strings is less than or equal to the total number of battery cell strings. If yes, proceed to S4; otherwise, proceed to S5.
[0066] S4, obtain the first on / off information of the sampling harness based on the number of battery cell strings and the total number of battery cell strings;
[0067] S5, obtain the second on / off information of the sampling harness.
[0068] In the above implementation process, the continuity of the sampling harness is judged based on the cell voltage and the number of cells in series, which can accurately detect the faults in the sampling harness, prevent pin errors of the sampling harness, and improve detection efficiency.
[0069] For example, the detection terminal in this application embodiment consists of multiple slave board connectors, manual switches, fuses, a series of filter capacitors and current limiting resistors. The melting time and threshold of the fuses need to be less than the serpentine line in the battery module in order to protect the battery module.
[0070] Before assembling the low-voltage wiring harness, connect one end of the sampling wiring harness to the battery module and the other end to the detection terminal. Close the manual switch. If the detection voltage Vi of the detection terminal is the same as the cell voltage U, the sampling wiring harness is normal and the pins of the battery module are correct. If the detection voltage Vi is different from the cell voltage U, the sampling wiring harness is open-circuited. Optionally, in actual applications, line resistance and sampling error should be considered.
[0071] Furthermore, S4 includes:
[0072] Obtain the detection voltage of the sampling harness;
[0073] Determine whether the detection voltage is within the preset range;
[0074] If so, change the number of battery cells in series, and obtain the first continuity information of the sampling harness based on the changed number of battery cells in series and the total number of battery cells in series;
[0075] If not, obtain the first on / off information, which is the open circuit status of the sampling harness.
[0076] In the above implementation process, judging the continuity of the sampling harness based on the detection voltage can detect more continuity information, prevent internal short circuits and pin errors in the sampling harness, and save judgment time.
[0077] If the number of cell strings is less than or equal to the total number of cell strings and the detected voltage is not equal to the cell voltage, after ruling out battery module faults and connector problems, there must be an open circuit in the circuit. In this case, the i-th or i-1-th sampling harness is broken. The reason for the break may be that the fuse of the detection terminal blows due to the faulty connection of the harness, or the pin is wrong. The battery module needs to be checked in detail.
[0078] The preset range allows the detection voltage to fluctuate within ±0.1 volts. Optionally, 0.1 is an example value, and the specific value should be adjusted according to the cell performance.
[0079] If the detected voltage is within the preset range, the number of battery cells in series can be changed. Optionally, the number of battery cells in series can be increased by one, and then compared with the total number of battery cells in series to obtain the first on / off information.
[0080] If the detected voltage is not within the preset range, the sampling harness can be directly identified as open circuit.
[0081] Furthermore, S5 includes:
[0082] Get the number of channels for the battery module;
[0083] The second on / off information of the sampling harness is obtained based on the number of channels and the number of battery cells in series.
[0084] In the above implementation process, the second on / off information of the sampling harness is obtained based on the number of channels, which increases the judgment of the sampling harness, making the fault of the sampling harness clearer and more obvious, and improving the accuracy of detection.
[0085] Further, the step of obtaining the second on / off information of the sampling harness based on the number of channels and the number of battery cells in series includes:
[0086] Determine if the number of battery cells in series is less than or equal to the number of channels;
[0087] If so, obtain the detection voltage of the sampling harness;
[0088] If the detected voltage is 0, change the number of battery cells in series, and obtain the second on / off information of the sampling harness based on the changed number of battery cells in series and the number of channels.
[0089] If the detected voltage is not 0, the second on / off information is obtained, which indicates an abnormal state of the sampling harness.
[0090] In the above implementation process, the detection voltage is used to further determine whether the sampling harness is abnormal, which simplifies the detection process of the sampling harness and can effectively detect the specific fault conditions of the sampling harness.
[0091] If the number of battery cell strings exceeds the total number of battery cell strings, and the detected voltage is not zero, then there is a pin error in the battery module or an internal short circuit in the sampling harness. If the fuse in the fuse box blows, then there is a pin error or insufficient voltage withstand capability of the connector.
[0092] When the number of battery cells in series is greater than the total number of battery cells in series and the detection voltage is not 0, the detection voltage is abnormal, indicating a pin error or an internal short circuit in the wiring harness.
[0093] Compared to conventional multimeters for testing wiring harness continuity, the testing terminal in this embodiment can identify pin errors and short circuits, thus avoiding the possibility of burning out the battery module during battery assembly wiring harness by sacrificing the internal fuse of the testing terminal.
[0094] Example 2
[0095] To implement the method corresponding to Embodiment 1 above and achieve the corresponding functions and technical effects, a detection device for the sampling harness of a power battery is provided below, such as... Figure 2 As shown, the device includes:
[0096] Module 1 is used to obtain the total number of battery cells in series and the cell voltage of the battery module;
[0097] Extraction module 2 is used to extract the number of battery cells in series corresponding to the battery cell voltage;
[0098] The judgment module 3 is used to determine whether the number of battery cell strings is less than or equal to the total number of battery cell strings; if yes, it obtains the first on / off information of the sampling harness based on the number of battery cell strings and the total number of battery cell strings; if no, it obtains the second on / off information of the sampling harness.
[0099] In the above implementation process, the continuity of the sampling harness is judged based on the cell voltage and the number of cells in series, which can accurately detect the faults in the sampling harness, prevent pin errors of the sampling harness, and improve detection efficiency.
[0100] Furthermore, the judgment module 3 also includes:
[0101] The first acquisition unit is used to acquire the detection voltage of the sampling harness;
[0102] The first judgment unit is used to determine whether the detection voltage is within a preset range;
[0103] If so, change the number of battery cells in series, and obtain the first continuity information of the sampling harness based on the changed number of battery cells in series and the total number of battery cells in series;
[0104] If not, obtain the first on / off information, which is the open circuit status of the sampling harness.
[0105] In the above implementation process, judging the continuity of the sampling harness based on the detection voltage can detect more continuity information, prevent internal short circuits and pin errors in the sampling harness, and save judgment time.
[0106] Furthermore, module 1 is also used for:
[0107] Get the number of channels for the battery module;
[0108] The second on / off information of the sampling harness is obtained based on the number of channels and the number of battery cells in series.
[0109] In the above implementation process, the second on / off information of the sampling harness is obtained based on the number of channels, which increases the judgment of the sampling harness, making the fault of the sampling harness clearer and more obvious, and improving the accuracy of detection.
[0110] Furthermore, the judgment module 3 is also used for:
[0111] Determine if the number of battery cells in series is less than or equal to the number of channels;
[0112] If so, obtain the detection voltage of the sampling harness;
[0113] If the detected voltage is 0, change the number of battery cells in series, and obtain the second on / off information of the sampling harness based on the changed number of battery cells in series and the number of channels.
[0114] If the detected voltage is not 0, the second on / off information is obtained, which indicates an abnormal state of the sampling harness.
[0115] In the above implementation process, the detection voltage is used to further determine whether the sampling harness is abnormal, which simplifies the detection process of the sampling harness and can effectively detect the specific fault conditions of the sampling harness.
[0116] The aforementioned detection device for the sampling harness of the power battery can implement the method of Embodiment 1. The options in Embodiment 1 also apply to this embodiment, and will not be detailed here.
[0117] The remaining contents of this embodiment can be referred to the contents of Embodiment 1 above, and will not be repeated in this embodiment.
[0118] Example 3
[0119] This application provides an electronic device, including a memory and a processor. The memory stores a computer program, and the processor runs the computer program to enable the electronic device to perform the detection method for the sampling harness of a power battery according to Embodiment 1.
[0120] Alternatively, the aforementioned electronic device may be a server.
[0121] Please see Figure 3 , Figure 3 This is a schematic diagram illustrating the structural composition of an electronic device provided in an embodiment of this application. The electronic device may include a processor 31, a communication interface 32, a memory 33, and at least one communication bus 34. The communication bus 34 is used to enable direct communication between these components. In this embodiment, the communication interface 32 is used for signaling or data communication with other node devices. The processor 31 may be an integrated circuit chip with signal processing capabilities.
[0122] The processor 31 described above can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor, or the processor 31 can be any conventional processor.
[0123] The memory 33 may be, but is not limited to, random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), etc. The memory 33 stores computer-readable instructions. When these computer-readable instructions are executed by the processor 31, the device can perform the aforementioned operations. Figure 1 The various steps involved in the method implementation examples.
[0124] Optionally, the electronic device may also include a storage controller and an input / output unit. The memory 33, storage controller, processor 31, peripheral interface, and input / output unit are electrically connected directly or indirectly to each other to achieve data transmission or interaction. For example, these components can be electrically connected to each other via one or more communication buses 34. The processor 31 is used to execute executable modules stored in the memory 33, such as software function modules or computer programs included in the device.
[0125] Input / output units are used to enable users to create tasks and set optional start periods or preset execution times for those tasks, facilitating user-server interaction. Input / output units can be, but are not limited to, a mouse and keyboard.
[0126] Understandable. Figure 3 The structure shown is for illustrative purposes only; the electronic device may also include components that are more advanced than those shown. Figure 3 The more or fewer components shown, or having the same Figure 3 The different configurations shown. Figure 3 The components shown can be implemented using hardware, software, or a combination thereof.
[0127] In addition, this application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the detection method for the sampling harness of the power battery in Embodiment 1.
[0128] This application also provides a computer program product that, when run on a computer, causes the computer to perform the method described in the method embodiment.
[0129] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using dedicated hardware-based apparatus that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.
[0130] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.
[0131] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, external hard drives, ROM, RAM, magnetic disks, or optical disks.
[0132] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0133] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
[0134] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A method for detecting a sampling harness of a power battery, characterized in that, The method comprises: obtaining the total number of cell strings and cell voltage of a battery module; extracting the number of cell strings corresponding to the cell voltage; determining whether the number of cell strings is less than or equal to the total number of cell strings; if yes, obtaining the first on-off information of the sampling harness according to the number of cell strings and the total number of cell strings; if no, obtaining the second on-off information of the sampling harness; the step of obtaining the first on-off information of the sampling harness according to the number of cell strings and the total number of cell strings comprises: obtaining the detection voltage of the sampling harness; determining whether the detection voltage is within a preset range; if yes, changing the number of cell strings, and obtaining the first on-off information of the sampling harness according to the changed number of cell strings and the total number of cell strings; if no, obtaining the first on-off information, which is the open circuit state of the sampling harness.
2. The method of claim 1, wherein, the step of obtaining the second on-off information of the sampling harness comprises: obtaining the number of channels of the battery module; obtaining the second on-off information of the sampling harness according to the number of channels and the number of cell strings.
3. The method of claim 2, wherein, the step of obtaining the second on-off information of the sampling harness according to the number of channels and the number of cell strings comprises: determining whether the number of cell strings is less than or equal to the number of channels; if yes, obtaining the detection voltage of the sampling harness; if the detection voltage is 0, changing the number of cell strings, and obtaining the second on-off information of the sampling harness according to the changed number of cell strings and the number of channels; if the detection voltage is not 0, obtaining the second on-off information, which is the abnormal state of the sampling harness.
4. A detection device for a sampling harness of a traction battery, characterized by The device comprises: an obtaining module for obtaining the total number of cell strings and cell voltage of a battery module; an extracting module for extracting the number of cell strings corresponding to the cell voltage; a determining module for determining whether the number of cell strings is less than or equal to the total number of cell strings; if yes, obtaining the first on-off information of the sampling harness according to the number of cell strings and the total number of cell strings; if no, obtaining the second on-off information of the sampling harness; the determining module further comprises: a first obtaining unit for obtaining the detection voltage of the sampling harness; a first determining unit for determining whether the detection voltage is within a preset range; if yes, changing the number of cell strings, and obtaining the first on-off information of the sampling harness according to the changed number of cell strings and the total number of cell strings; if no, obtaining the first on-off information, which is the open circuit state of the sampling harness.
5. The detection device of the sampling harness of the power battery according to claim 4, characterized in that, the obtaining module is further used for: obtaining the number of channels of the battery module; obtaining the second on-off information of the sampling harness according to the number of channels and the number of cell strings.
6. The detection device of the sampling harness of the power battery according to claim 5, characterized in that, the determining module is further used for: determining whether the number of cell strings is less than or equal to the number of channels; if yes, obtaining the detection voltage of the sampling harness; if the detection voltage is 0, changing the number of cell strings, and obtaining the second on-off information of the sampling harness according to the changed number of cell strings and the number of channels; if the detection voltage is not 0, obtaining the second on-off information, which is the abnormal state of the sampling harness.
7. An electronic device, comprising: The electronic device comprises a memory for storing a computer program and a processor for running the computer program to enable the electronic device to perform the detection method of the sampling harness of the power battery according to any one of claims 1 to 3.
8. A computer-readable storage medium, characterized in that, The computer program is stored in the memory and is executed by the processor to implement the detection method of the sampling harness of the power battery according to any one of claims 1 to 3.
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