KR20200060147A - Apparatus and method for diagnosing software compatibility of BMS - Google Patents

Abstract

The present invention relates to an apparatus and a method for diagnosing the software compatibility of a battery management system (BMS), which can effectively diagnose the compatibility between pieces of software of a secondary battery and the BMS in a process of diagnosing the software compatibility of the BMS provided in a battery pack. According to an embodiment of the present invention, an apparatus for diagnosing software compatibility diagnoses the compatibility between pieces of software of a secondary battery provided in a battery pack and a BMS provided in the battery pack. The apparatus comprises: a temperature measurement unit configured to measure the temperature of the secondary battery; a memory device configured to previously store an identification flag configured to identify the type of the software mounted on the BMS and a temperature characteristic value during charging and discharging corresponding to various types of secondary batteries; and a processor configured to receive a temperature measurement value of the secondary battery from the temperature measurement unit, determine the type of the secondary battery based on the received temperature measurement value and the previously stored temperature characteristic value, and diagnose whether the software mounted on the BMS is appropriate by comparing the determined type of the secondary battery with the previously stored identification flag.

Description

Apparatus and method for diagnosing software compatibility of BMS}

The present invention relates to an apparatus and method for diagnosing software compatibility of a BMS, and more specifically, to diagnose a compatibility between a secondary battery and software effectively in a process of diagnosing software compatibility of a battery management system (BMS) provided in a battery pack. Software compatibility diagnostic apparatus and method.

In recent years, as demand for portable electronic products such as laptops, video cameras, and portable telephones has rapidly increased, and development of electric vehicles, storage batteries for energy storage, robots, satellites, etc. has started in earnest, high-performance secondary batteries capable of repeated charging and discharging Research is actively underway.

Currently commercialized secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, and lithium secondary batteries. Among these, lithium secondary batteries are free of charge and discharge because they have little memory effect compared to nickel-based secondary batteries, The self-discharge rate is very low, and it is spotlighted for its high energy density.

Batteries are used in a variety of fields, such as electric-powered vehicles or smart grid systems, in recent years, a field in which the battery is frequently used requires a large capacity. In order to increase the capacity of the battery pack, there may be a method of increasing the capacity of the secondary battery, that is, the battery cell itself. Have Therefore, a battery pack in which a plurality of battery modules are connected in series and in parallel is widely used.

Such a battery pack often includes a battery management system (BMS) that manages a battery module. Moreover, the BMS monitors the temperature, voltage, and current of the battery module, and controls balancing, cooling, charging, or discharging operations of the battery pack based on the status of the monitored battery module.

Meanwhile, in recent years, as a need for a large-capacity structure of a battery pack increases, a demand for a multi-module structure battery pack in which a plurality of battery modules in which a plurality of batteries are connected in series and / or in parallel is aggregated is increasing.

Since the battery pack of the multi-module structure includes a plurality of batteries, it may have different capacities depending on the type of the mounted secondary battery. In this case, in order to monitor the secondary battery and control charging and discharging of the secondary battery, the BMS must be equipped with software compatible with the type of the secondary battery.

Therefore, there is a need to accurately diagnose whether or not software compatible with the secondary battery is mounted on the BMS, and notify the user accurately.

The present invention was developed to solve the above problems, and improved software compatibility capable of effectively diagnosing compatibility between a secondary battery and software in the process of diagnosing software compatibility of a battery management system (BMS) provided in a battery pack. It is an object to provide a diagnostic device and method.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by examples of the present invention. In addition, it will be readily appreciated that the objects and advantages of the present invention can be realized by means and combinations thereof.

Software compatibility diagnostic device according to an embodiment of the present invention for achieving the above object, as a device for diagnosing the compatibility between the software of the secondary battery provided in the battery pack and the BMS provided in the battery pack, the secondary battery A temperature measuring unit configured to measure the temperature of the; An identification flag configured to identify the type of software mounted on the BMS and a memory device configured to pre-store temperature characteristic values during charging and discharging corresponding to various types of secondary batteries; And receiving the temperature measurement value of the secondary battery from the temperature measurement unit, determining the type of the secondary battery based on the received temperature measurement value and the previously stored temperature characteristic value, and determining the type of the secondary battery and And a processor configured to compare the pre-stored identification flag and diagnose whether the software mounted on the BMS is appropriate.

In addition, the processor may be configured to determine the type of the secondary battery based on a temperature change amount for a predetermined time during charging and discharging of the secondary battery.

In addition, the processor may be configured to determine the type of the secondary battery based on the maximum temperature during a predetermined time during charging and discharging of the secondary battery.

In addition, the software compatibility diagnostic apparatus according to an embodiment of the present invention may further include a current measuring unit configured to measure the charge and discharge current of the secondary battery.

In addition, the processor receives the current measurement value of the secondary battery from the current measurement unit, and based on the received current measurement value and the amount of temperature change during a predetermined time during charging and discharging of the secondary battery. It can be configured to determine the type.

In addition, the processor receives the current measurement value of the secondary battery from the current measurement unit, and the secondary battery is based on the received current measurement value and a maximum temperature value during a predetermined time during charging and discharging of the secondary battery. It can be configured to determine the type of.

In addition, the memory device may be configured to store in advance a table that is distinguished according to the capacity of each secondary battery and indicates the amount of temperature change according to the charge and discharge time.

In addition, the processor determines the first capacity of the secondary battery compatible with the software based on the identification flag, and based on the temperature measurement value and a table showing the amount of temperature change according to the charge / discharge time, the secondary battery It may be configured to determine a second capacity, and compare the first capacity and the second capacity to diagnose compatibility between the secondary battery and the software.

In addition, the BMS according to an embodiment of the present invention for achieving the above object includes a software compatibility diagnostic device according to the present invention.

In addition, the battery pack according to an embodiment of the present invention for achieving the above object includes a software compatibility diagnostic device according to the present invention.

In addition, the software compatibility diagnostic method according to an embodiment of the present invention for achieving the above object, in the method of diagnosing the compatibility between the secondary battery provided in the battery pack and the software of the BMS provided in the battery pack, Storing in advance an identification flag configured to identify the type of software installed in the BMS and a temperature characteristic value during charging and discharging corresponding to various types of secondary batteries; Measuring the temperature of the secondary battery; And receiving the temperature measurement value of the secondary battery measured by the temperature measurement step, determining the type of the secondary battery based on the received temperature measurement value and the pre-stored temperature characteristic value, and determining the secondary battery. And comparing the type of the pre-stored identification flag and diagnosing whether the software loaded in the BMS is appropriate.

According to an aspect of the present invention, by using different secondary batteries having different charging and discharging temperature characteristic values according to types of secondary batteries for a plurality of secondary batteries, the compatibility of the secondary battery mounted on the battery pack and software is effectively It has the advantage of being diagnosed.

In addition, the present invention may have various other effects, and other effects of the present invention may be understood by the following description, and may be more clearly understood by examples of the present invention.

The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and the present invention serves to further understand the technical idea of the present invention together with the detailed description of the invention described below, and thus the present invention is described in such drawings. It should not be interpreted as being limited to.
1 is a diagram schematically showing a functional configuration of a software compatibility diagnostic apparatus according to an embodiment of the present invention.
2 is a diagram schematically showing data included in a memory device according to an embodiment of the present invention.
3 and 4 are views schematically showing temperature characteristic values during charging and discharging corresponding to types of secondary batteries according to an embodiment of the present invention.
5 is a flowchart schematically showing a software compatibility diagnostic method according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the specification and claims should not be interpreted as being limited to ordinary or lexical meanings, and the inventor appropriately explains the concept of terms in order to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Therefore, the embodiments shown in the embodiments and the drawings described in this specification are only the most preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention. It should be understood that there may be equivalents and variations.

In addition, in the description of the present invention, when it is determined that detailed descriptions of related well-known structures or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

Throughout the specification, when a part “includes” a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise specified. Also, terms such as 'processor' described in the specification mean a unit that processes at least one function or operation, and may be implemented by hardware or software, or a combination of hardware and software.

In addition, throughout the specification, when a part is "connected" to another part, it is not only "directly connected", but also "indirectly connected" with another element in between. Includes.

In the present specification, the secondary battery includes a negative terminal and a positive terminal, and means one independent cell that is physically separable. For example, one pouch-type lithium polymer cell may be considered as a secondary battery. In addition, in this specification, the cell assembly refers to a configuration in which a plurality of secondary batteries are connected in series and / or in parallel.

The software compatibility diagnostic apparatus according to an embodiment of the present invention may be a device for diagnosing compatibility between software of a secondary battery provided in a battery pack and BMS provided in the battery pack. For example, the software may be a program in which an algorithm for controlling charging and discharging of the secondary battery is stored according to the type of the secondary battery. For example, as shown in the configuration of FIG. 1, a battery pack according to an embodiment of the present invention may be electrically connected to a vehicle load 30 when provided in a vehicle.

1 is a diagram schematically showing a functional configuration of a software compatibility diagnostic apparatus according to an embodiment of the present invention, and FIG. 2 is a diagram schematically showing data included in a memory device according to an embodiment of the present invention. .

1 and 2, a software compatibility diagnosis apparatus according to an embodiment of the present invention includes a temperature measurement unit 100, a memory device 200 and a processor 300.

The temperature measuring unit 100 may be configured to measure the temperature of the secondary battery. For example, as shown in the configuration of FIG. 1, the temperature measuring unit 100 may measure the temperature of the secondary battery adjacent to the cell assembly 10. In addition, the temperature measuring unit 100 may be electrically connected to the cell assembly 10 adjacent to the cell assembly 10 so as to send and receive electrical signals. Alternatively, the temperature measuring unit 100 may be mounted on the cell assembly 10 and electrically connected to the cell assembly 10. Through such a configuration, the temperature measuring unit 100 can measure the temperature of the secondary battery.

Preferably, the temperature measuring unit 100 may be mounted on an integrated circuit board of a battery management system (BMS). In particular, the temperature measuring unit 100 may be attached on an integrated circuit board. For example, the temperature measurement unit 100 may be an NTC thermistor (Negative Temperature Coefficient thermistor) mounted in a shouldered form on an integrated circuit board.

Preferably, the temperature measuring unit 100 may be electrically coupled to the processor 300 to send and receive electrical signals. In addition, the temperature measuring unit 100 may repeatedly measure the temperature of the secondary battery at a time interval and output a signal indicating the magnitude of the measured temperature to the processor 300. For example, the temperature measuring unit 100 may be implemented using a thermocouple generally used in the art.

The memory device 200 may store the identification flag 215 and the temperature characteristic values 221, 222, 223 in advance. The identification flag 215 may be a flag configured to identify the type of software 213 mounted on the BMS. For example, as illustrated in the configuration of FIG. 2, the memory device 200 may include a first memory area 210. The BMS software 213 may be stored in the first memory area 210. For example, the software 213 may be a program that controls charging and discharging of the secondary battery.

Also, an identification flag 215 indicating a version of the software 213 may be stored in the first memory area 210. For example, the identification flag 215 indicates a version of the software 213, and different software 213 may have different identification flags 215 according to the type of the corresponding secondary battery. For example, the identification flag 215 may be a version of version 1, version 2, or version 3. Here, the version 1 may be a version of the software 213 compatible with the P27 secondary battery. Further, the version 2 may be a version of the software 213 compatible with the P30 secondary battery. Further, the version 3 may be a version of the software 213 compatible with the P33 secondary battery. For example, the P27 secondary battery may mean a secondary battery having a capacity of 2,700mA. Further, the P30 secondary battery may mean a secondary battery having a capacity of 3,000 mA. Further, the P33 secondary battery may mean a secondary battery having a capacity of 3,300 mA.

The temperature characteristic values 221, 222, and 223 may be temperature characteristic values during charging and discharging corresponding to various types of secondary batteries. For example, as illustrated in the configuration of FIG. 2, the memory device 200 may include a second memory area 220. In the second memory area 220, temperature characteristic values during charging and discharging corresponding to various types of secondary batteries may be stored. For example, the temperature characteristic value may be a table or graph indicating a temperature value according to a time when the secondary battery is charged and discharged. For example, as shown in the configuration of FIG. 2, in the second memory area 220, the temperature characteristic value 221 of the P27 secondary battery, the temperature characteristic value 222 of the P30 secondary battery, and the temperature of the P33 secondary battery The characteristic value 223 may be stored.

In addition, as shown in the configuration of FIG. 1, the memory device 200 may be electrically connected to the processor 300 so as to send and receive electrical signals. Alternatively, the memory device 200 according to an embodiment of the present invention may be included in the processor 300 as a component of the processor 300.

The processor 300 may receive a temperature measurement value of the secondary battery from the temperature measurement unit 100. For example, as shown in the configuration of FIG. 1, the processor 300 may be electrically connected to the temperature measurement unit 100 to exchange and send electrical signals. In addition, the processor 300 may receive a temperature measurement value during charging and discharging of the secondary battery from the temperature measurement unit 100.

In addition, the processor 300 may determine the type of the secondary battery based on the received temperature measurement value and the temperature characteristic value stored in advance. For example, the processor 300 compares the temperature measurement values received from the temperature measurement unit 100 and the temperature characteristic values of the plurality of secondary batteries received from the memory device 200 to determine whether the secondary battery is installed in the battery pack. You can judge the type. More specifically, the processor 300 compares the temperature measurement values received from the temperature measurement unit 100 and the temperature characteristic values of the plurality of secondary batteries received from the memory device 200, so that the temperature measurement values and the temperature The capacity of the secondary battery mounted in the battery pack may be determined based on whether the difference between the characteristic values falls within a predetermined error range.

In addition, the processor 300 may compare the determined type of the secondary battery with the identification flag 215 stored in advance to diagnose whether the software 213 mounted on the BMS is appropriate. For example, the processor 300 determines the type of the secondary battery installed in the battery pack, and compares the determined type of the secondary battery with the identification flag 215 of the software 213 previously stored in the memory device 200. Thus, it is possible to diagnose whether the software 213 is appropriate software 213 corresponding to the type of secondary battery mounted on the battery pack. That is, the processor 300 may compare the determined type of the secondary battery with the identification flag 215 to diagnose whether the software 213 is compatible.

Preferably, the software compatibility diagnostic apparatus according to an embodiment of the present invention may further include a current measuring unit 400.

The current measuring unit 400 may be configured to measure the charge and discharge current of the secondary battery. For example, as shown in the configuration of FIG. 1, the current measurement unit 400 is electrically connected to a current sensor provided on a charge / discharge path of the cell assembly 10 to receive an electrical signal from the current sensor can do. In addition, the current measurement unit 400 may be configured to measure the current flowing through the charge / discharge path based on the electrical signal received from the current sensor.

For example, as shown in the configuration of FIG. 1, the current measuring unit 400 according to an embodiment of the present invention may be electrically connected to both ends of the current sensor. Here, the current sensor may be electrically connected between the positive terminal of the cell assembly 10 and the positive terminal of the battery pack. In addition, the current measurement unit 400 may measure the voltage across the current sensor and measure the current flowing through the charge / discharge path based on the voltage across the current sensor. For example, the current measurement unit 400 may measure the current flowing through the charge / discharge path using Ohm's law based on the resistance value of the current sensor and the voltage across the current sensor.

Preferably, the current measuring unit 400 may be electrically connected to the processor 300 to send and receive electrical signals. In addition, the current measurement unit 400 repeatedly measures the size of the charging or discharging current of the cell assembly 10 at a time interval under the control of the processor 300 and transmits a signal indicating the magnitude of the measured current to the processor 300 ). For example, the current sensor may be implemented using a Hall sensor or sense resistor commonly used in the art.

Preferably, the memory device 200 according to an embodiment of the present invention may store in advance a table showing the amount of temperature change according to the charge and discharge time of various secondary batteries. For example, the table may be classified according to the capacity of each secondary battery.

Preferably, the software compatibility diagnostic apparatus according to an embodiment of the present invention may further include a communication unit 500.

The communication unit 500 may be electrically connected to the server 50 provided on the outside of the battery pack to exchange electrical signals. In addition, the communication unit 500 may be electrically connected to the processor 300 to send and receive electrical signals. For example, if the software 213 is not compatible with the secondary battery mounted on the battery pack, the communication unit 500 may receive software 213 compatible with the secondary battery mounted on the battery pack from the server 50. Can be. In addition, the processor 300 may install software 213 compatible with the secondary battery mounted on the battery pack in the memory device 200.

Preferably, the software compatibility diagnostic apparatus according to an embodiment of the present invention may further include an alarm unit 600.

The alarm unit 600 may be electrically connected to exchange electrical signals with an external device 70 provided outside the battery pack. In addition, the alarm unit 600 may be electrically connected to the processor 300 to send and receive electrical signals. For example, when the secondary battery installed in the battery pack and the software 213 are not compatible, the alarm unit 600 may transmit an alarm indicating that the software 213 is not compatible to the external device 70. . For example, the external device 70 may be a display device.

On the other hand, the processor 300, in order to perform the above-described operation, the processor 300, an application-specific integrated circuit (ASIC), other chipsets, logic circuits, registers, communication modems and / or data known in the art It may be implemented in a form that selectively includes a processing device.

On the other hand, the memory device 200 has no particular limitation on its type, as long as it is a storage medium capable of recording and erasing information. For example, the memory device 200 may be a RAM, ROM, register, hard disk, optical recording medium, or magnetic recording medium. The memory device 200 may also be electrically connected to the processor 300 through, for example, a data bus or the like, so that each can be accessed by the processor 300. The memory device 200 may also store and / or update and / or erase and / or transmit data generated when a program that includes various control logics performed by the processor 300 and / or control logic is executed. have.

3 and 4 are views schematically showing temperature characteristic values during charging and discharging corresponding to types of secondary batteries according to an embodiment of the present invention.

2 and 3, the temperature characteristic value of FIG. 3 may be a temperature characteristic value during charging and discharging of the P27 secondary battery. In addition, referring to FIGS. 2 and 4, the temperature characteristic value of FIG. 4 may be a temperature characteristic value during charging and discharging of the P30 secondary battery.

For example, the temperature characteristic value of FIG. 3 may include a first temperature characteristic value (①), a second temperature characteristic value (②), a third temperature characteristic value (③), and a fourth temperature characteristic value (④). Can be. Here, the first temperature characteristic value (①) shows the temperature characteristic value over time when the discharge current of the P27 secondary battery is 240A. In addition, the second temperature characteristic value (②) shows the temperature characteristic value over time when the discharge current of the P27 secondary battery is 181.3A. In addition, the third temperature characteristic value (③) shows the temperature characteristic value over time when the discharge current of the P27 secondary battery is 129.5A. In addition, the fourth temperature characteristic value (④) shows the temperature characteristic value over time when the discharge current of the P27 secondary battery is 77.7A.

For example, the temperature characteristic value of FIG. 4 may include a fifth temperature characteristic value (⑤), a sixth temperature characteristic value (⑥), a seventh temperature characteristic value (⑦), and an eighth temperature characteristic value (⑧). Can be. Here, the fifth temperature characteristic value ⑤ shows the temperature characteristic value over time when the discharge current of the P30 secondary battery is 300A. In addition, the sixth temperature characteristic value (⑥) shows the temperature characteristic value over time when the discharge current of the P30 secondary battery is 250A. In addition, the seventh temperature characteristic value (⑦) shows the temperature characteristic value over time when the discharge current of the P30 secondary battery is 150A. In addition, the eighth temperature characteristic value (⑧) shows the temperature characteristic value over time when the discharge current of the P30 secondary battery is 30A.

The processor 300 according to an embodiment of the present invention may determine the type of the secondary battery based on a temperature change amount for a predetermined time during charging and discharging of the secondary battery. For example, in the graphs of FIGS. 3 and 4, the processor 300 may determine the type of the secondary battery based on the amount of temperature change during a period of 0 to 50 seconds (t) after the secondary battery is discharged. For example, the processor 300 is based on the third temperature characteristic value (③) when the temperature change amount of the secondary battery for 0 to 50 seconds during which the secondary battery is discharged increases by 1 ° C from 25.3 ° C to 26.3 ° C. Therefore, it can be determined that the secondary battery mounted on the battery pack is a P27 secondary battery.

Preferably, the processor 300 according to an embodiment of the present invention receives the current measurement value of the secondary battery from the current measurement unit 400, the received current measurement value and a predetermined time when charging and discharging the secondary battery The type of the secondary battery can be determined based on the amount of temperature change during the period. For example, in the graphs of FIGS. 3 and 4, the processor 300 has a discharge current of 150 A of the secondary battery and a temperature change amount of the secondary battery during 0 to 50 seconds at which the secondary battery is discharged is 24.5 ° C. to 25 ° C. When it is increased by 0.5 ° C, it may be determined that the secondary battery mounted on the battery pack is the P30 secondary battery based on the seventh temperature characteristic value (⑦).

In addition, when the discharge current of the secondary battery is 129.5 A in the processor 300, and the temperature change amount of the secondary battery for 0 to 50 seconds during which the secondary battery is discharged increases from 25.3 ° C to 26.3 ° C by 1 ° C, the third Based on the temperature characteristic value (③), it can be determined that the secondary battery mounted on the battery pack is a P27 secondary battery.

Through such a configuration, the software compatibility diagnostic apparatus according to an embodiment of the present invention has an advantage of determining the type of a specific secondary battery based on a temperature characteristic value that is not proportional to the size of the discharge current.

More preferably, the processor 300 according to an embodiment of the present invention may determine the type of the secondary battery based on the maximum temperature during a predetermined time during charging and discharging of the secondary battery. For example, in the graphs of FIGS. 3 and 4, the processor 300 may determine the type of the secondary battery based on the maximum temperature during a period of 0 to 50 seconds (t) after the secondary battery is discharged. . For example, when the maximum temperature of the secondary battery for 0 to 50 seconds during which the secondary battery is discharged is 26.3 ° C., for example, the processor 300 has a secondary battery mounted on the battery pack based on the third temperature characteristic value (③). It can be determined that the battery is a P27 secondary battery.

More preferably, the processor 300 according to an embodiment of the present invention receives the current measurement value of the secondary battery from the current measurement unit 400 and determines the received current measurement value and charging and discharging of the secondary battery in advance. The type of the secondary battery can be determined based on the maximum temperature over time. For example, in the graphs of FIGS. 3 and 4, when the processor 300 has a discharge current of 150 A of a secondary battery and a maximum temperature of the secondary battery for 0 to 50 seconds during which the secondary battery is discharged is 25 ° C. , It may be determined that the secondary battery mounted on the battery pack is the P30 secondary battery based on the seventh temperature characteristic value (⑦).

In addition, when the discharge current of the secondary battery is 129.5 A and the maximum temperature of the secondary battery during 0 to 50 seconds during which the secondary battery is discharged is 26.3 ° C., the processor 300 sets the third temperature characteristic value (③). As a basis, it can be determined that the secondary battery mounted on the battery pack is a P27 secondary battery.

The processor 300 according to an embodiment of the present invention may determine the first capacity of the secondary battery compatible with the software based on the identification flag. For example, the processor 300 may determine the version of the software installed in the BMS based on the identification flag, and determine the capacity of the secondary battery compatible with the software.

In addition, the processor 300 may determine the second capacity of the secondary battery based on the temperature measurement value and a table indicating the temperature change amount according to the charge / discharge time. For example, in the embodiments of FIGS. 3 and 4, the processor 300 may determine the capacity of the secondary battery based on the temperature measurement value of the secondary battery.

In addition, the processor 300 may compare the first capacity and the second capacity to diagnose compatibility between the secondary battery and software. For example, in the embodiments of FIGS. 3 and 4, the processor 300 compares the capacity of a secondary battery mounted in a battery pack with the capacity of a secondary battery compatible with software, and compares the capacity of the secondary battery mounted in the battery pack with Software compatibility can be diagnosed.

Through such a configuration, in the software compatibility diagnostic apparatus according to an embodiment of the present invention, a plurality of secondary batteries are different depending on the capacity of the secondary battery, the negative electrode active material of the secondary battery, the positive electrode active material of the secondary battery, and the electrolyte of the secondary battery, etc. There is an advantage in that it is possible to effectively diagnose the compatibility of the secondary battery mounted on the battery pack and the software by using the charging / discharging temperature characteristic value.

The software compatibility diagnostic apparatus according to the present invention can be applied to BMS. That is, the BMS according to the present invention may include the software compatibility diagnostic device according to the present invention described above. In this configuration, at least a part of each component of the software compatibility diagnostic apparatus according to the present invention may be implemented by supplementing or adding functions of a configuration included in a conventional BMS. For example, the processor 300 and the memory device 200 of the software compatibility diagnostic apparatus according to the present invention may be implemented as components of a battery management system (BMS).

In addition, the software compatibility diagnostic apparatus according to the present invention may be provided in the battery pack. That is, the battery pack according to the present invention may include the software compatibility diagnostic device according to the present invention described above. Here, the battery pack may include one or more secondary batteries, the software compatibility diagnostic device, electronic products (including BMS, relays, fuses, etc.) and a case.

5 is a flowchart schematically illustrating a software compatibility diagnostic method according to an embodiment of the present invention. In FIG. 5, the subject of each step may be referred to as each component of the software compatibility diagnostic apparatus according to the present invention described above.

As illustrated in FIG. 5, the software compatibility diagnostic method according to the present invention includes a data storage step (S100), a temperature measurement step (S110), and a diagnostic step (S120).

First, in the data storage step S100, an identification flag configured to identify the type of software mounted on the BMS and a temperature characteristic value during charging and discharging corresponding to various types of secondary batteries may be previously stored.

Subsequently, in the temperature measurement step (S110), the temperature of the secondary battery can be measured.

Subsequently, in the diagnosis step S120, a temperature measurement value of the secondary battery measured by the temperature measurement step is received, and the type of the secondary battery is determined based on the received temperature measurement value and the pre-stored temperature characteristic value. It is determined, and by comparing the determined type of the secondary battery and the pre-stored identification flag, it is possible to diagnose whether the software mounted on the BMS is appropriate.

Preferably, in the diagnosis step S120 according to an embodiment of the present invention, the type of the secondary battery may be determined based on a temperature change amount for a predetermined time during charging and discharging of the secondary battery.

Preferably, in the diagnosis step S120 according to an embodiment of the present invention, the type of the secondary battery may be determined based on a maximum temperature during a predetermined time when charging and discharging the secondary battery.

Preferably, the software compatibility diagnostic method according to an embodiment of the present invention may further include a current measurement step.

In the current measurement step, it is possible to measure the charge and discharge current of the secondary battery.

Preferably, in the diagnostic step (S120) according to an embodiment of the present invention, the current measurement value of the secondary battery measured by the current measurement step is received, and the received current measurement value and the charging of the secondary battery The type of the secondary battery may be determined based on a temperature change amount during a predetermined time during discharge.

Preferably, in the diagnostic step (S120) according to an embodiment of the present invention, the current measurement value of the secondary battery measured by the current measurement step is received, and the received current measurement value and the charging of the secondary battery The type of the secondary battery may be determined based on the maximum temperature during a predetermined time during discharge.

Further, when the control logic is implemented in software, the processor may be implemented as a set of program modules. At this time, the program module may be stored in the memory device and executed by the processor.

In addition, at least one of the various control logics of the processor is combined, and the combined control logics are written in a computer-readable code system, so that the computer-readable accessibility is not limited. As an example, the recording medium includes at least one or more selected from the group comprising ROM, RAM, registers, CD-ROM, magnetic tape, hard disk, floppy disk, and optical data recording device. In addition, the code system can be distributed and stored on a networked computer and executed. In addition, functional programs, codes and segments for implementing the combined control logics can be easily inferred by programmers in the art to which the present invention pertains.

As described above, although the present invention has been described by a limited number of embodiments and drawings, the present invention is not limited by this, and the technical idea of the present invention and the following will be described by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the equivalent scope of the claims to be described.

10: Cell assembly
30: vehicle load
50: Server
70: external device
100: temperature measuring section
200: memory device
210: first memory area
213: software
215: identification flag
220: second memory area
300: processor
400: current measuring unit
500: communication unit
600: alarm unit

Claims (11)

In the apparatus for diagnosing the compatibility between the secondary battery provided in the battery pack and the software of the BMS provided in the battery pack,
A temperature measuring unit configured to measure the temperature of the secondary battery;
An identification flag configured to identify the type of software mounted on the BMS and a memory device configured to pre-store temperature characteristic values during charging and discharging corresponding to various types of secondary batteries; And
Receiving a temperature measurement value of the secondary battery from the temperature measuring unit, and determines the type of the secondary battery based on the received temperature measurement value and the pre-stored temperature characteristic value, the determined type of the secondary battery and the A processor configured to compare the pre-stored identification flags and diagnose the adequacy of software loaded in the BMS
Software compatibility diagnostic device comprising a.
According to claim 1,
The processor is configured to determine the type of the secondary battery based on the amount of temperature change during a predetermined time during charging and discharging of the secondary battery.
According to claim 1,
The processor is configured to determine the type of the secondary battery based on a maximum temperature value for a predetermined time during charging and discharging of the secondary battery.
According to claim 1,
Current measuring unit configured to measure the charge and discharge current of the secondary battery
Software compatibility diagnostic device further comprising a.
The method of claim 4,
The processor receives the current measurement value of the secondary battery from the current measurement unit and determines the type of the secondary battery based on the received current measurement value and the amount of temperature change during a predetermined time during charging and discharging of the secondary battery. Software compatibility diagnostic device, characterized in that configured to determine.
The method of claim 4,
The processor receives the current measurement value of the secondary battery from the current measurement unit, and the type of the secondary battery based on the received current measurement value and a temperature maximum during a predetermined time during charging and discharging of the secondary battery Software compatibility diagnostic device, characterized in that configured to determine.
According to claim 1,
The memory device is distinguished according to the capacity of each secondary battery, and is configured to store in advance a table indicating the amount of temperature change according to the charge / discharge time.
The method of claim 7,
The processor determines the first capacity of the secondary battery compatible with the software based on the identification flag, and the second of the secondary battery is based on the temperature measurement value and a table indicating the amount of temperature change according to the charge / discharge time. And determining the capacity, and comparing the first capacity and the second capacity to diagnose compatibility between the secondary battery and the software.
A BMS comprising a software compatibility diagnostic device according to claim 1.
A battery pack comprising a software compatibility diagnostic device according to any one of claims 1 to 8.
In the method of diagnosing the compatibility between the secondary battery provided in the battery pack and the software of the BMS provided in the battery pack,
Storing in advance an identification flag configured to identify the type of software installed in the BMS and a temperature characteristic value during charging and discharging corresponding to various types of secondary batteries;
Measuring the temperature of the secondary battery; And
Receives a temperature measurement value of the secondary battery measured by the temperature measurement step, and determines the type of the secondary battery based on the received temperature measurement value and the pre-stored temperature characteristic value, and determines the determined secondary battery Comparing the type and the pre-stored identification flag, and diagnosing the adequacy of the software mounted on the BMS
Software compatibility diagnostic method comprising a.

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