CN115407214A - Test tool and test method for battery module - Google Patents

Abstract

The application discloses a battery module function testing tool and a testing method. Wherein, the test fixture of battery module includes: one end of each group of test interfaces in the plurality of groups of test interfaces is connected with the battery module to be tested, the other end of each group of test interfaces is connected with the CMU (control unit) of the same battery module and the first BMU, and the first BMU is at least used for detecting first physical attribute information of the battery module; and the upper computer is connected with the CMU and used for receiving the second physical attribute information of the battery module collected by the CMU and determining whether the function of the battery module is normal or not at least according to the first physical attribute information and the second physical attribute information. The battery module function test process that a plurality of different models have been solved in this application is loaded down with trivial details, need dispose different switch boxes, technical problem that the test cost is high.

Description

Test tool and test method for battery module

Technical Field

The application relates to the field of batteries, in particular to a test tool and a test method for a battery module.

Background

In recent years, battery energy storage systems have been developed with great momentum as one of the key technologies for many countries to advance global carbon neutralization targets. The battery energy storage system is formed by combining a plurality of battery modules in series and parallel. The battery module is an important component of the battery energy storage system and is a key for influencing the overall performance of the system. Therefore, the function of the battery module is very important for the safe and stable operation of the energy storage system.

In the related art, the function test of the battery module is generally to collect data in real time through the upper computer by connecting the CMU communication module in the switch box. Different battery modules need supporting switch box just can communicate, but the switch box is bulky, and the operation is unchangeable, does not possess the commonality.

Disclosure of Invention

The embodiment of the application provides a test tool and a test method for a battery module, and the technical problems that the function test process of a plurality of battery modules of different models is complicated, different switch boxes need to be configured, and the test cost is high are solved at least.

According to an aspect of the embodiment of the application, a test fixture of a battery module is provided, which comprises: one end of each group of test interfaces in the multiple groups of test interfaces is connected with the battery module to be tested, the other end of each group of test interfaces is connected with the same battery module control unit CMU and the first BMU, and the first BMU is at least used for detecting first physical attribute information of the battery module; and the upper computer is connected with the CMU and used for receiving the second physical attribute information of the battery module collected by the CMU and determining whether the function of the battery module is normal or not at least according to the first physical attribute information and the second physical attribute information.

Optionally, the test interface comprises: the first testing interface is connected with the first BMU, the first testing interface corresponds to the first BMU one by one, and the second testing interface shares the CMU.

Optionally, the multiple groups of test interfaces correspond to multiple groups of battery modules to be tested one by one, each group of battery modules in the multiple groups of battery modules is provided with a second BMU, and the second BMU is used for acquiring second physical attribute information of the battery modules and sending the second physical attribute information to the upper computer through the CMU.

Optionally, the CMU is connected to a control unit, and the control unit is configured to control starting of the test of the CMU on the plurality of groups of battery modules.

Optionally, the test fixture further comprises: and one end of the power supply module is connected with the control unit, the other end of the power supply module is connected with an alternating current power supply, and the power supply module is provided with an Alternating Current (AC)/Direct Current (DC) module for supplying power to the test tool.

Optionally, the test fixture further comprises: the battery tester is connected with the battery module and is provided with a probe for detecting the electrical information of the battery module.

Optionally, the test fixture further comprises: and the alarm unit is connected with the upper computer and used for receiving a control command of the upper computer to generate an alarm signal and displaying the alarm signal, wherein the alarm signal is used for indicating the abnormal function of the battery module.

According to another aspect of the embodiment of the application, a method for testing a battery module is also provided. Wherein, the method comprises the following steps: acquiring a target model corresponding to a battery module to be tested; receiving first physical attribute information of a battery module to be tested, which is detected by a BMU corresponding to a target model, wherein the BMU corresponds to the model of the battery module one to one; receiving second physical attribute information of the battery module to be tested, which is acquired by a battery module control unit CMU; and determining whether the function of the battery module to be tested is normal or not at least according to the first physical attribute information and the second physical attribute information.

Optionally, determining whether the function of the battery module is normal according to at least the first physical attribute information and the second physical attribute information includes: respectively determining a first parameter value corresponding to the first physical attribute information and a second parameter value corresponding to the second physical attribute information; and determining the difference value between the first parameter value and the second parameter value, and determining that the target battery module is normal in function under the condition that the difference value meets a preset range.

According to another aspect of embodiments of the present application, there is also provided a nonvolatile storage medium including: the storage medium includes a stored program, wherein the device on which the storage medium is located is controlled to execute any one of the battery module testing methods when the program is executed.

According to another aspect of the embodiments of the present application, there is also provided an electronic device, including: a processor; a memory for storing processor-executable instructions; the processor is configured to execute the instructions to realize the test method of any battery module.

In the embodiment of the application, a mode that a plurality of battery modules of different models share the same CMU for battery testing is adopted, one end of each group of test interfaces in a plurality of groups of test interfaces is connected with a battery module to be tested, the other end of each group of test interfaces is connected with the same CMU and a first BMU, and the first BMU is at least used for detecting first physical attribute information of the battery module; the host computer, be connected with CMU, a second physical attribute information for receiving the battery module that comes from CMU collection, and whether the function of confirming the battery module is normal according to first physical attribute information and second physical attribute information at least, the purpose of carrying out general test to the battery module of different models has been reached, thereby the test to the battery module of a plurality of different models has been realized, and then it is loaded down with trivial details to the test procedure of the battery module of a plurality of different models among the correlation technique to have solved, the problem that hardware is with high costs, reduced test cost has been reached, the technological effect of the efficiency of software testing of battery module is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram illustrating a test of a battery module according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a test tool for a battery module according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a moveable base structure according to an embodiment of the present application;

fig. 4 is a schematic flowchart illustrating a testing method of a battery module according to an embodiment of the present disclosure;

fig. 5 is a schematic block diagram of an example electronic device 500, according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments in the present application, shall fall within the scope of protection of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

To facilitate a better understanding of the embodiments related to the present application by those skilled in the art, technical terms or partial terms that may be referred to in the present application are now explained:

each battery module is provided with a battery module control unit (cmu, cell measure unit), and the battery module control unit is used for collecting parameters of battery monomers in the battery module and controlling the states of the battery monomers.

The battery pack is usually further provided with a battery management unit (bmu, battery management unit), and the battery management unit is used for processing the parameters acquired by the battery module control unit and performing state monitoring and state control on the whole battery pack. The battery management unit (bmu) is used for collecting voltage, current and temperature information of the single battery cell, is an important hardware composition unit in the battery management system (bms), is responsible for managing the single battery in the battery module, controls the battery cell and the on/off of the cooling fan by monitoring information such as temperature and voltage, uploads the information of the single battery to the battery management system, and the safe, reliable and stable operation of the battery module is realized.

The daisy chain communication is applied to the inside of the battery management system, namely, signals transmitted by the daisy chain communication are supplied to the battery management unit. For the test of the battery module, information such as voltage, temperature and the like still needs to be measured through additional monitoring equipment, and then the state of the battery module is monitored.

AC/DC switching power supplies are one type of switching power supplies. The power supply is also called a primary power supply, wherein AC is alternating current, DC is direct current, a direct current high voltage is obtained through high-voltage rectification and filtering, the direct current high voltage is supplied to a DC/DC converter to obtain one or more stable direct current voltages at the output end, and the power is a product from several watts to several kilowatts and is used in different occasions.

The battery tester is mainly used for detecting current, voltage, capacity, internal resistance, temperature and battery cycle life and providing a curve chart. The battery tester has a plurality of channels for selection. The battery tester can be started at a single point and controlled at a single point, and simultaneously test batteries of different types.

The compensation of the internal resistance of the battery takes the voltage drop caused by the internal resistance of the battery from the output end of the quick charging chip to the input end of the battery and the large-current charging process into consideration, so that the voltage drop is compensated. The purpose is to prolong the time of constant current charging CC and shorten the time of constant voltage charging CV.

Fig. 1 is a test fixture for a battery module according to an embodiment of the present application, and as shown in fig. 1, the test fixture includes:

the system comprises a plurality of groups of test interfaces 1, wherein one end of each group of test interfaces 10 in each group of test interfaces 1 is connected with a battery module 20 to be tested, the other end of each group of test interfaces 1 is connected with the same battery module control unit CMU30, each group of test interfaces 10 is connected with a first BMU40, and the first BMU40 is at least used for detecting first physical attribute information of the battery module 20;

and the upper computer 50 is connected with the CMU30 and is used for receiving the second physical attribute information of the battery module 20 collected by the CMU30 and determining whether the function of the battery module 20 is normal or not according to at least the first physical attribute information and the second physical attribute information.

In the test tool, one end of each group of test interfaces 10 in a plurality of groups of test interfaces 1 is connected with a battery module 20 to be tested, the other end of each group of test interfaces 1 is connected with the same battery module control unit CMU30, each group of test interfaces 10 is connected with a first BMU40, and the first BMU40 is at least used for detecting first physical attribute information of the battery module 20; host computer 50, be connected with CMU30, a second physical attribute information for receiving the battery module 20 that comes from CMU30 collection, and whether the function of confirming battery module 20 is normal according to first physical attribute information and second physical attribute information at least, the purpose of carrying out general test to the battery module of different models has been reached, thereby the test to the battery module of a plurality of different models has been realized, and then it is loaded down with trivial details to the test procedure of the battery module of a plurality of different models in the correlation technique to have solved, the problem that hardware cost is high, reduced test cost has been reached, the technological effect of the efficiency of software testing of battery module is improved.

It should be noted that the first physical attribute information includes, but is not limited to: BMU on-board temperature, ambient humidity, the above-mentioned second physical attribute information includes but is not limited to: cell voltage, cell temperature, on-board temperature, ambient humidity, fan turn/stop information, etc.

Fig. 2 is a schematic diagram of a test tool for a battery module in an exemplary embodiment of the present application, and as shown in fig. 2, the test interface 10 of the test tool for a battery module further includes: the first test interface 102 and the second test interface 104, the first test interface 104 is connected with the first BMU40, the first test interface 104 corresponds to the first BMU40 one by one, and the second test interface 102 all shares the CMU30, so that the test of the battery modules of various models is realized.

Optionally, each group of test interfaces 10 in the multiple groups of test interfaces 1 corresponds to each group of battery modules 20 in the multiple groups of battery modules 2 to be tested one by one, each group of battery modules 20 in the multiple groups of battery modules 2 is provided with a second BMU60, and the second BMU60 is configured to collect second physical attribute information of the battery modules 20 and send the second physical attribute information to the upper computer 50 through the CMU 30.

In some embodiments of the present application, the CMU30 is connected to the control unit 70, and the control unit 70 is configured to control the start of the test of the multiple groups of battery modules 2 by the CMU 30. Specifically, the control unit 70 is configured to control the CMU30 to be started to test each group of battery modules 20 in the plurality of groups of battery modules 2, and it can be understood that the types of each group of battery modules may be different types, and the test on the plurality of groups of battery modules of different types may be implemented in this way.

Optionally, the test fixture further comprises: the power module 80 has one end of the power module 80 connected to the control unit 70 and the other end connected to an AC power source, where the voltage of the AC power source is usually 220 v or 380 v, and the power module 80 is provided with an AC/DC module for converting AC power into DC power to supply power to the test fixture, and as another alternative embodiment, the power module 80 may be replaced by a power supply battery. It can be understood that, if the external power supply is direct current, the test tool may be directly powered by the direct current without providing an AC/DC module.

In some embodiments of the present application, the test fixture further includes: the battery tester 90 is connected with the battery module 20, and the battery tester 90 is provided with a probe for detecting the electrical information of the battery module 20, so as to measure the total internal resistance and the total voltage of the battery module 20. It should be noted that the electrical information includes, but is not limited to: voltage, current, and resistance, etc.

In some embodiments of the present application, the upper computer 50 is provided with a data conversion module, and the data conversion module is configured to convert the first binary data sent by the CMU into second binary data. For example, the first binary data is 16-ary data, and the 16-ary data can be converted into 10-ary data by the data conversion module.

As an optional embodiment, the test tool may perform the test on the battery module through the following steps in the working process, specifically:

step one, selecting a module type for testing on an upper computer interface, opening a power supply channel of the CMU module by the upper computer through a control unit, and starting testing.

And step two, automatically pressing down through the air cylinder to control the total internal resistance and the total voltage of the probe detection module of the battery test instrument pen. And the upper computer reads the information tested by the battery tester after the cylinder is pressed in place and calculates the information into a decimal value.

And step three, the upper computer can send 485 instructions to the CMU module at intervals of 500ms, and 2-system data of the battery module collected by the BMU is converted into 16-system data according to the CMU module. The upper computer analyzes and converts the command into a 10-system value (second binary data) according to the 16-system (first-system data) command returned by the CMU module, so as to obtain information of the battery module, such as cell voltage, cell temperature, on-board temperature, ambient humidity, fan rotation/stop information, and lower-level daisy chain communication information.

Judging the obtained battery module information by the upper computer, wherein the test information is in a qualified range; the difference values of all the cell voltages and the cell temperatures of the battery module are smaller than the preset difference value; the BMU (second BMU) on-board temperature, the ambient temperature and the ambient humidity of the battery module obtained by the upper computer are compared with the BMU on-board temperature, the ambient temperature and the ambient humidity measured by the qualified BMU module (first BMU), the difference between the BMU on-board temperature and the ambient humidity is determined to be smaller than the preset difference, and then the module is judged to be qualified in functionality.

In some embodiments of the present application, the test fixture further includes: and the alarm unit is connected with the upper computer and used for receiving a control command of the upper computer to generate an alarm signal and displaying the alarm signal, wherein the alarm signal is used for indicating the abnormal function of the battery module. For example, if the functionality of the battery module is determined to be unqualified, the alarm unit prompts that the battery module is abnormal, and then the wireless communication module sends the early warning information of the alarm signal to the mobile terminal of the target object. The target object can be a maintainer of the battery module, the alarm signal is popup prompt information of the mobile terminal, and the prompt information comprises the serial number of the battery module and abnormal data of the battery module and prompts the maintainer to investigate abnormal reasons as soon as possible.

In some embodiments of the present application, the test device further comprises: and the wireless communication module is connected with the alarm unit and is used for sending the alarm signal to the mobile terminal on the target object side. Optionally, the wireless communication module may be a bluetooth module or a wifi module.

In some embodiments of the present application, the testing tool is provided with a movable base, as shown in fig. 3, the movable base is provided with a predetermined number of casters capable of rolling, and the casters are spaced apart from each other by a predetermined angle. Wherein, the portable base is equipped with 4 truckles that can roll, and the interval 90 distribution between every truckle.

It should be noted that the above-mentioned rollable casters of the movable base can be determined according to actual requirements, for example, 3 rollable casters are also available, and each caster is distributed at an interval of 120 °.

Fig. 4 is a method for testing a battery module according to an embodiment of the present application, as shown in fig. 4, the method including the steps of:

step S402, acquiring a target model corresponding to the battery module to be tested;

step S404, receiving first physical attribute information of a battery module to be detected, which is detected by a battery management unit BMU corresponding to a target model, wherein the BMU corresponds to the model of the battery module one by one;

step S406, receiving second physical attribute information of the battery module to be tested, which is acquired by the CMU;

step S408, determining whether the function of the battery module to be tested is normal according to at least the first physical attribute information and the second physical attribute information.

According to the method for testing the battery module, the target model corresponding to the battery module to be tested is obtained; receiving first physical attribute information of a battery module to be tested, which is detected by a BMU corresponding to a target model, wherein the BMU corresponds to the model of the battery module one to one; receiving second physical attribute information of the battery module to be tested, which is acquired by a battery module control unit CMU; whether the function of the battery module to be tested is normal is determined at least according to the first physical attribute information and the second physical attribute information, and the purpose of carrying out general test on the battery modules of different models is achieved, so that the test on the battery modules of a plurality of different models is realized, the problems that the test process of the battery modules of a plurality of different models in the related technology is complicated, and the hardware cost is high are solved, the technical effects of reducing the test cost and improving the test efficiency of the battery modules are achieved.

In some optional embodiments of the present application, according to obtaining a target model corresponding to a battery module to be tested, the method can be implemented in the following manner, specifically, the model of the battery module to be tested is selected in an interface of an upper computer, the upper computer opens a power supply channel of the CMU module through a control unit, and a test is started.

As an optional embodiment, according to the first physical attribute information of the battery module to be tested, which is detected by the battery management unit BMU corresponding to the received target model, the method may be implemented in such a manner that, specifically, the battery management unit BMU detects the first physical attribute information of the battery module to be tested, where the first physical attribute information includes onboard temperature, ambient temperature, and ambient humidity of the BMU.

In some embodiments of the present application, the second physical attribute information of the battery module to be tested, which is collected by the CMU, may be transmitted to the upper computer in the following manner, specifically, the second physical attribute information is collected by the CMU, where the second physical attribute information includes cell voltage, cell temperature, on-board temperature, ambient humidity, fan rotation/stop information, and the like.

In some embodiments of the present application, determining whether the function of the battery module to be tested is normal according to at least the first physical attribute information and the second physical attribute information may be implemented in the following manner, specifically, a first parameter value corresponding to the first physical attribute information and a second parameter value corresponding to the second physical attribute information may be respectively determined; and then, determining the difference value between the first parameter value and the second parameter value, and determining that the target battery module is normal in function under the condition that the difference value meets a preset range.

In some optional embodiments of the present application, before determining whether the function of the battery module to be tested is normal according to the first physical attribute information and the second physical attribute information, the upper computer may determine a second parameter value corresponding to the obtained second physical attribute information, determine whether the second parameter value corresponding to the second physical attribute information is within a qualified range, and determine whether differences between all cell voltages and cell temperatures of the battery module are smaller than a preset difference; and then comparing the second parameter value corresponding to the obtained second physical attribute information with a first parameter value corresponding to first physical attribute information measured by a qualified BMU module (a first BMU) when the second parameter value is in a qualified range and the difference values of all the cell voltage difference values and the cell temperature difference values of the battery module are smaller than a preset difference value, determining whether the difference values of the second parameter value and the first parameter value are smaller than the corresponding preset difference value, and determining that the target battery module is normal in function when the difference values of the second parameter value and the first parameter value are smaller than the corresponding preset difference value.

For example, the battery module information obtained by the upper computer is in a qualified range, the preset difference of the cell voltages is assumed to be 3V, the preset difference of the cell temperatures is assumed to be 6 °, all the cell voltage differences of the battery module are 1V, the difference of the cell temperatures is 0 °, and the differences of the cell voltage differences and the cell temperatures are smaller than the preset differences; assuming that the preset difference value of the BMU onboard temperature is 5 degrees, the preset difference value of the ambient temperature is 5 degrees, and the preset difference value of the ambient humidity is 10 degrees, at this time, the BMU onboard temperature obtained by the upper computer is 41 degrees, the ambient temperature is 32 degrees, and the ambient humidity is 53 degrees, the first BMU onboard temperature measured by the second BMU is 40 degrees, the ambient temperature is 32 degrees, and the ambient humidity is 55 degrees, comparing the two sets of data to obtain that the difference value of the BMU onboard temperature is 1 degree, the difference value of the ambient temperature is 0 degree, and the difference value of the ambient humidity is 2 percent, the difference values of the two sets of data are both smaller than the preset difference value, and the battery module can be judged to be qualified in functionality.

In order to facilitate better understanding of the technical solutions of the present application, a specific embodiment is now described, which mainly includes the following steps:

(1) Connecting the test interface with a battery module to be tested;

(2) Selecting a module type for testing on an interface of an upper computer, opening a power supply channel of the CMU module by the upper computer through a control unit, and starting testing;

(3) The total internal resistance and the total voltage of the probe detection module of the battery test instrument are controlled by automatically pressing down the air cylinder. The upper computer reads the information tested by the battery tester after the cylinder is pressed in place and calculates the information into a decimal value;

(4) The upper computer sends 485 instructions to the CMU module at intervals of 500ms, and 2-system data of the battery module collected by the BMU is converted into 16-system data according to the CMU module; the upper computer analyzes and converts the 16-system instruction returned by the CMU module into a 10-system value so as to obtain the information of the battery module, namely, the cell voltage, the cell temperature, the onboard temperature, the ambient humidity, the fan rotation/stop and the lower-level daisy chain communication;

(5) The upper computer judges the obtained battery module information, and the test information is in a qualified range; the difference values of all the monomer voltage differences and the monomer temperature differences of the battery module are smaller than the preset difference value; comparing the BMU onboard temperature, the ambient temperature and the ambient humidity obtained by the upper computer with those measured by the qualified BMU module, and determining that the difference between the BMU onboard temperature, the ambient temperature and the ambient humidity is less than a preset difference, and judging that the module is qualified in functionality.

Obviously, the total internal resistance compensation function can be utilized to correct the line resistance of the product caused by long-term use loss of the test line, so that misjudgment is avoided; meanwhile, each function testing module is integrated in the movable testing device, so that the testing cost is reduced, and the testing efficiency of various battery modules is improved.

Specifically, the storage medium is used for storing program instructions of the following functions, and the following functions are realized:

acquiring a target model corresponding to a battery module to be tested; receiving first physical attribute information of a battery module to be tested, which is detected by a BMU (battery management unit) corresponding to a target model, wherein the BMU corresponds to the model of the battery module one by one; receiving second physical attribute information of the battery module to be tested, which is acquired by a battery module control unit CMU; and determining whether the function of the battery module to be tested is normal or not at least according to the first physical attribute information and the second physical attribute information.

Alternatively, in the present embodiment, the storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the aforementioned storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the aforementioned.

In an exemplary embodiment of the present application, there is also provided a computer program product including a computer program, which when executed by a processor, implements the method of testing a battery module of any one of the above.

Optionally, the computer program may, when executed by a processor, implement the steps of:

acquiring a target model corresponding to a battery module to be tested; receiving first physical attribute information of a battery module to be tested, which is detected by a BMU corresponding to a target model, wherein the BMU corresponds to the model of the battery module one to one; receiving second physical attribute information of the battery module to be tested, which is acquired by a battery module control unit CMU; and determining whether the function of the battery module to be tested is normal or not at least according to the first physical attribute information and the second physical attribute information.

An embodiment according to the present application provides an electronic device including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions which can be executed by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the test method of the battery module.

Optionally, the electronic device may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

FIG. 5 illustrates a schematic block diagram of an example electronic device 500 that can be used to implement embodiments of the present application. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application that are described and/or claimed herein.

As shown in fig. 5, the apparatus 500 comprises a computing unit 501 which may perform various appropriate actions and processes in accordance with a computer program stored in a Read Only Memory (ROM) 502 or a computer program loaded from a storage unit 508 into a Random Access Memory (RAM) 503. In the RAM 503, various programs and data required for the operation of the device 500 can also be stored. The calculation unit 501, the ROM 502, and the RAM 503 are connected to each other by a bus 504. An input/output (I/O) interface 505 is also connected to bus 504.

A number of components in the device 500 are connected to the I/O interface 505, including: an input unit 506 such as a keyboard, a mouse, or the like; an output unit 507 such as various types of displays, speakers, and the like; a storage unit 508, such as a magnetic disk, optical disk, or the like; and a communication unit 509 such as a network card, modem, wireless communication transceiver, etc. The communication unit 509 allows the device 500 to exchange information/data with other devices through a computer network such as the internet and/or various telecommunication networks.

The computing unit 501 may be a variety of general-purpose and/or special-purpose processing components having processing and computing capabilities. Some examples of the computing unit 501 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various dedicated Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, and so forth. The calculation unit 501 performs the respective methods and processes described above, such as the test method of the battery module. For example, in some embodiments, the method for testing the battery module may be implemented as a computer software program that is tangibly embodied in a machine-readable medium, such as the storage unit 508. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 500 via the ROM 502 and/or the communication unit 509. When the computer program is loaded into the RAM 503 and executed by the calculation unit 501, one or more steps of the test method of the battery module described above may be performed. Alternatively, in other embodiments, the computing unit 501 may be configured to perform the method of testing the battery module by any other suitable means (e.g., by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.

Program code for implementing the methods of the present application may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowchart and/or block diagram to be performed. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of this application, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), and the Internet.

The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server may be a cloud server, a server of a distributed system, or a server combining a blockchain.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit may be a division of a logic function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or may not be executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be provided in one place, or may be distributed over a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and various media capable of storing program codes.

The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims (11)

1. The utility model provides a test fixture of battery module which characterized in that includes:

one end of each group of test interfaces in the multiple groups of test interfaces is connected with a battery module to be tested, the other end of each group of test interfaces is connected with the same battery module control unit CMU, each group of test interfaces is connected with a first battery management unit BMU, and the first BMU is at least used for detecting first physical attribute information of the battery module;

and the upper computer is connected with the CMU and used for receiving the second physical attribute information of the battery module collected by the CMU and determining whether the function of the battery module is normal or not at least according to the first physical attribute information and the second physical attribute information.

2. The test tool of the battery module according to claim 1, wherein the test interface comprises: the CMU testing device comprises a first testing interface and a second testing interface, wherein the first testing interface is connected with a first BMU, the first testing interface corresponds to the first BMU one to one, and the second testing interface shares the CMU.

3. The test tool for the battery modules according to claim 2, wherein the plurality of groups of test interfaces correspond to a plurality of groups of battery modules to be tested one by one, each group of battery modules in the plurality of groups of battery modules is provided with a second BMU, and the second BMU is used for collecting second physical attribute information of the battery modules and sending the second physical attribute information to the upper computer through the CMU.

4. The test tool for the battery modules according to claim 1, wherein the CMU is connected to a control unit, and the control unit is configured to control and start the test of the CMU on the plurality of groups of battery modules.

5. The test tool of claim 4, further comprising:

and one end of the power module is connected with the control unit, the other end of the power module is connected with an alternating current power supply, and the power module is provided with an Alternating Current (AC)/Direct Current (DC) module for supplying power to the test tool.

6. The test tool of claim 1, further comprising:

the battery tester is connected with the battery module and provided with a probe for detecting the electrical information of the battery module.

7. The test fixture of battery module of claim 1, characterized in that, the test fixture further comprises:

the alarm unit is connected with the upper computer and used for receiving a control command of the upper computer to generate an alarm signal and displaying the alarm signal, wherein the alarm signal is used for indicating that the function of the battery module is abnormal.

8. A method for testing a battery module is characterized by comprising the following steps:

acquiring a target model corresponding to a battery module to be tested;

receiving first physical attribute information of the battery module to be tested, which is detected by a Battery Management Unit (BMU) corresponding to the target model, wherein the BMU corresponds to the model of the battery module one to one;

receiving second physical attribute information of the battery module to be tested, which is acquired by a battery module control unit CMU;

and determining whether the function of the battery module to be tested is normal or not at least according to the first physical attribute information and the second physical attribute information.

9. The method for testing according to claim 8, wherein determining whether the function of the battery module is normal at least according to the first physical attribute information and the second physical attribute information comprises:

respectively determining a first parameter value corresponding to the first physical attribute information and a second parameter value corresponding to the second physical attribute information;

and determining a difference value between the first parameter value and the second parameter value, and determining that the target battery module is normal in function under the condition that the difference value meets a preset range.

10. A non-volatile storage medium, characterized in that the storage medium includes a stored program, wherein when the program is executed, a device in which the storage medium is located is controlled to execute the method for testing the battery module according to any one of claims 8 to 9.

11. An electronic device, comprising:

a processor;

a memory for storing the processor-executable instructions;

wherein the processor is configured to execute the instructions to implement the method of testing the battery module according to any one of claims 8 to 9.

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