CN114290907A - Vehicle battery temperature abnormity processing method and device - Google Patents
Vehicle battery temperature abnormity processing method and device Download PDFInfo
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Abstract
The embodiment of the invention relates to the field of vehicle control, in particular to a method and a device for processing abnormal temperature of a vehicle battery. The method comprises the steps of receiving first battery temperature data sent by a temperature sensor at a first time, if the first battery temperature data exceed a fault threshold value, determining a first time area according to the first time, wherein the first time area comprises the first time, then determining whether each battery temperature data in the first time area has abnormal characteristics of the temperature sensor, if so, sending a first control signal to a vehicle controller for indicating the vehicle controller to keep the working state of a vehicle battery and sending fault information of the temperature sensor, and if not, sending a second control signal to the vehicle controller for indicating the vehicle controller to cut off the power supply of the vehicle battery to a vehicle. The vehicle battery is processed differently based on the judgment result of the abnormal characteristic, so that power interruption caused by false alarm of the battery temperature can be avoided, and driving safety and user experience are improved.
Description
Technical Field
The invention relates to the field of vehicle control, in particular to a method and a device for processing abnormal temperature of a vehicle battery.
Background
In recent years, vehicle battery systems have been an important or sole energy source for electric vehicles, as for gasoline versus conventional fuel vehicles. Consisting of a vehicle battery, an electric circuit and an electronic control unit (battery management system), and the related electrical and structural components. The traditional vehicle battery is characterized in that a Negative Temperature Coefficient (NTC) Temperature sensor is welded on the surface of an acquisition line, and glue is dispensed to fix the NTC Temperature sensor so as to monitor the Temperature of the battery. Therefore, impact of other structural parts on the NTC temperature sensor due to extrusion, collision and the like caused by vibration of a vehicle battery cannot be avoided in the using process, the NTC temperature sensor is extruded or collided by external force to cause instant failure, or silver ion migration exists in the NTC temperature sensor to cause abnormity after the NTC temperature sensor is sealed and water enters the NTC temperature sensor in a high-humidity environment. The Battery Management System (BMS) may shut down the vehicle Battery after receiving the erroneous Battery temperature data, resulting in power interruption, but the Battery temperature data is erroneous data output due to a failure of the NTC temperature sensor, and is not an actual Battery temperature.
Disclosure of Invention
The embodiment of the invention provides a vehicle battery temperature abnormity processing method and device, when the battery temperature exceeding the threshold value sent by an NTC temperature sensor is received, different processing is carried out on the vehicle battery based on the judgment of preset abnormity characteristics, the power interruption caused by the abnormity of the NTC temperature sensor can be avoided, and the driving safety and the user experience are improved.
In a first aspect, an embodiment of the present invention provides a vehicle battery temperature abnormality processing method, where the method is applied to a BMS, and includes:
receiving first battery temperature data sent by a temperature sensor at a first time;
determining a first time zone according to the first time if the first battery temperature data exceeds a fault threshold, the first time zone including the first time;
determining whether each battery temperature data in the first time zone has a temperature sensor abnormality characteristic;
if the temperature data of each battery in the first time zone has the abnormal characteristic of the temperature sensor, sending a first control signal to a Vehicle Control Unit (VCU), wherein the first control signal is used for indicating the VCU to maintain the working state of the Vehicle battery and sending out fault information of the temperature sensor;
and if the temperature data of each battery in the first time zone does not have the abnormal characteristic of the temperature sensor, sending a second control signal to the VCU, wherein the second control signal is used for indicating the VCU to disconnect the power supply of the vehicle battery to the vehicle.
In one implementation, the first battery temperature data exceeding a fault threshold includes:
determining a charge-discharge state of a vehicle battery;
determining that the first battery temperature data exceeds a fault threshold if the vehicle battery is in a discharge state and the first battery temperature data is greater than a discharge fault threshold, or if the vehicle battery is in a charge state and the first battery temperature data is greater than a charge fault threshold.
In one implementation, each battery temperature data in the first time zone has a temperature sensor abnormality characteristic if each battery temperature data in the first time zone satisfies one or more of the following conditions, including:
the battery temperature data which is smaller than a low-temperature threshold or higher than a high-temperature threshold exists in the first time region, and the duration time exceeds the first threshold;
the difference between two battery temperature data with continuous sampling time is larger than a second threshold value;
the mean value of the battery temperature data in a first time region is Tavg, and the battery temperature data with the absolute value of the difference value of the Tavg greater than a third threshold value exists in the first time region;
and a first sub-time period exists in the first time zone, all the battery temperature data in the first sub-time period are greater than a fourth threshold, and the heating rate of the first sub-time period is greater than a fifth threshold.
In one implementation, sending a second control signal to the VCU, the second control signal instructing the VCU to disconnect the power supply of the vehicle battery to the vehicle, includes:
sending a second control signal to the VCU, so that the VCU sends a battery disconnection instruction to the BMS after receiving the second control signal;
and disconnecting the power supply of the vehicle battery to the vehicle after receiving the battery disconnection instruction.
In one implementation, the method for disconnecting the power supply of the vehicle battery to the vehicle after receiving the battery disconnection instruction comprises the following steps:
and after the battery disconnection instruction is received, periodically reducing the power of the vehicle battery by taking a sixth threshold value as an interval until the power supply of the vehicle battery to the vehicle is disconnected.
In one implementation, the second control signal is further used to instruct the VCU to determine that the vehicle battery is a secondary fault and to illuminate a battery fault indicator light.
In one implementation, the first control signal is further used to instruct the VCU to determine that the vehicle battery is a primary fault and to illuminate a battery overheat indicator light.
In a second aspect, an embodiment of the present invention provides a vehicle battery temperature abnormality processing apparatus applied to a BMS, including:
the receiving module is used for receiving first battery temperature data sent by the temperature sensor at a first time;
a determination module to determine a first time zone according to the first time if the first battery temperature data exceeds a fault threshold, the first time zone including the first time;
the judging module is used for determining whether the temperature data of each battery in the first time region has the abnormal characteristics of the temperature sensor;
the first sending module is used for sending a first control signal to a Vehicle Control Unit (VCU) if temperature data of each battery in a first time region has abnormal characteristics of a temperature sensor, wherein the first control signal is used for indicating the VCU to keep the working state of a vehicle battery and sending fault information of the temperature sensor;
and the second sending module is used for sending a second control signal to the VCU if the temperature data of each battery in the first time zone does not have the abnormal characteristic of the temperature sensor, wherein the second control signal is used for indicating the VCU to disconnect the power supply of the vehicle battery to the vehicle.
In a third aspect, an embodiment of the present invention provides an electronic device, where the device is deployed in a BMS, and the electronic device includes:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor being capable of performing the method as provided by the first aspect when invoked by the processor.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to perform the method provided in the first aspect.
In the embodiment of the invention, first battery temperature data sent by a temperature sensor at a first time is received, if the first battery temperature data exceeds a fault threshold value, a first time area is determined according to the first time, the first time area contains the first time, then whether the temperature data of each battery in the first time area has abnormal characteristics of the temperature sensor is determined, if yes, a first control signal is sent to a vehicle controller and used for indicating the vehicle controller to keep the working state of a vehicle battery and send out fault information of the temperature sensor, and if not, a second control signal is sent to the vehicle controller and used for indicating the vehicle controller to cut off the power supply of the vehicle battery to a vehicle. The vehicle battery is processed differently based on the judgment result of the abnormal characteristic, so that power interruption caused by false alarm of the battery temperature can be avoided, and driving safety and user experience are improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for handling a temperature anomaly of a vehicle battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a vehicle battery temperature abnormality processing device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For better understanding of the technical solutions in the present specification, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only a few embodiments of the present specification, and not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step are within the scope of the present specification.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the specification. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Fig. 1 is a flowchart of a method for processing a temperature abnormality of a vehicle battery according to an embodiment of the present invention. The method may be used in a BMS, as shown in fig. 1, and may include:
The temperature sensor detects the battery temperature of the vehicle battery in real time and transmits the battery temperature data to the BMS.
Under normal conditions, the battery temperature of vehicle battery can change in a reasonable interval, if vehicle battery breaks down, probably leads to battery temperature to surpass reasonable interval, for the safety of protection user and vehicle, BMS need close vehicle battery. However, if the NTC temperature sensor fails, the BMS may receive an erroneous battery temperature, and in order to cope with such a situation, the BMS determines a first time zone and makes a further determination based on the battery temperature data in the first time zone when detecting that the battery temperature exceeds a failure threshold.
In some embodiments, the BMS determines that the first battery temperature data exceeds the fault threshold based on a determination that the first battery temperature data exceeds the fault threshold if the vehicle battery is in a discharged state and the first battery temperature data is greater than the discharge fault threshold or if the vehicle battery is in a charged state and the first battery temperature data is greater than the charge fault threshold.
In some embodiments, in order to detect whether the NTC temperature sensor is faulty, the BMS may preset some abnormality characteristics, and if each battery temperature data in the first time zone satisfies one or more of the abnormality characteristics, the determining that each battery temperature data in the first time zone has the abnormality characteristics of the temperature sensor may specifically include: the battery temperature data which is smaller than a low-temperature threshold or higher than a high-temperature threshold exists in the first time region, and the duration time exceeds the first threshold; the difference between two battery temperature data with continuous sampling time is larger than a second threshold value; the mean value of the battery temperature data in the first time region is Tavg, and the battery temperature data with the absolute value of the difference value between the mean value and Tavg larger than a third threshold value exists in the first time region; and a first sub-time period exists in the first time zone, all the battery temperature data in the first sub-time period are greater than a fourth threshold, and the heating rate of the first sub-time period is greater than a fifth threshold. If the BMS does not find any abnormal characteristic of the temperature sensor, the fact that the NTC temperature sensor works normally is indicated, and the vehicle battery is in fault.
For example, the low temperature threshold may be set to-40 degrees, the high temperature threshold may be set to 125 degrees, the first threshold may be set to 3 seconds, the second threshold may be set to 5 degrees, the third threshold may be set to 20 degrees, the fourth threshold may be set to 50 degrees, and the fifth threshold may be set to 1 degree/second.
When the BMS is used for judging the preset abnormal characteristics, the normal communication of the internal bus of the vehicle needs to be ensured, and the temperature sampling circuit has no fault.
And 104, if the temperature data of each battery in the first time zone has the abnormal characteristic of the temperature sensor, sending a first control signal to the VCU, wherein the first control signal is used for indicating the VCU to maintain the working state of the vehicle battery and sending out fault information of the temperature sensor.
The BMS transmits a corresponding control signal to the VCU to process different faults based on the determination result of the abnormal characteristic of the temperature sensor. If the BMS determines that the NTC temperature sensor has a fault, the BMS only needs to send a first control signal to the VCU to enable the VCU to send temperature sensor fault information without disconnecting the power supply of the vehicle battery to the vehicle, and reminds a user that the NTC temperature sensor has a fault and is overhauled in time.
In some embodiments, the VCU issuing the temperature sensor fault information may include determining that the vehicle battery is a primary fault and illuminating a battery overheat indicator light.
And 105, if the temperature data of each battery in the first time zone does not have the abnormal characteristic of the temperature sensor, sending a second control signal to the VCU, wherein the second control signal is used for instructing the VCU to disconnect the power supply of the vehicle battery to the vehicle.
If the BMS determines that the vehicle battery has a fault, the power supply of the vehicle battery to the vehicle needs to be cut off in order to guarantee the safety of the user. The BMS sends a second control signal to the VCU, the VCU sends a battery disconnection command to the BMS after receiving the second control signal, and the BMS disconnects the power supply of the vehicle battery to the vehicle after receiving the battery disconnection command.
In some embodiments, the VCU, upon receiving the second control signal, also determines that the vehicle battery is a secondary fault and illuminates a battery fault indicator light to prompt a user to service the vehicle battery.
In some embodiments, after receiving the battery disconnection command, the BMS periodically reduces the power of the vehicle battery at intervals of a sixth threshold until the vehicle battery is disconnected from powering the vehicle. For example, the BMS decreases the power of the vehicle battery once every 3 seconds, and gradually decreases the power of the vehicle battery to 0 within 30 seconds.
In the embodiment of the invention, a BMS receives first battery temperature data sent by a temperature sensor at a first time, if the first battery temperature data exceeds a fault threshold value, a first time area is determined according to the first time, the first time area contains the first time, then whether the temperature data of each battery in the first time area has abnormal characteristics of the temperature sensor is determined, if yes, a first control signal is sent to a vehicle controller and used for indicating the vehicle controller to keep the working state of a vehicle battery and send out fault information of the temperature sensor, and if not, a second control signal is sent to the vehicle controller and used for indicating the vehicle controller to cut off the power supply of the vehicle battery to the vehicle. The vehicle battery is processed differently based on the judgment result of the abnormal characteristic, so that power interruption caused by false alarm of the battery temperature can be avoided, and driving safety and user experience are improved.
Fig. 2 is a schematic structural diagram of a vehicle battery temperature abnormality processing device according to an embodiment of the present invention. The vehicle battery temperature abnormality processing device in the embodiment of the invention can be used as a vehicle battery temperature abnormality processing device to realize the vehicle battery temperature abnormality processing method provided by the embodiment of the invention. As shown in fig. 2, the vehicle battery temperature abnormality processing device described above may include: a receiving module 210, a determining module 220, a judging module 230, a first transmitting module 240 and a second transmitting module 250.
A receiving module 210, configured to receive first battery temperature data sent by a temperature sensor at a first time;
a determining module 220, configured to determine a first time zone according to the first time if the first battery temperature data exceeds a fault threshold, the first time zone including the first time;
a determining module 230, configured to determine whether each battery temperature data in the first time region has an abnormal temperature sensor characteristic;
the first sending module 240 is configured to send a first control signal to a vehicle control unit VCU if temperature data of each battery in a first time region has an abnormal temperature sensor characteristic, where the first control signal is used to instruct the VCU to maintain a working state of a vehicle battery and send temperature sensor fault information;
a second sending module 250, configured to send a second control signal to the VCU if the temperature data of each battery in the first time region does not have the abnormal temperature sensor characteristic, where the second control signal is used to instruct the VCU to disconnect power supply of the vehicle battery to the vehicle.
The embodiment shown in fig. 2 provides a vehicle battery temperature abnormality processing apparatus for executing the technical solution of the method embodiment shown in fig. 1, and the implementation principle and technical effect thereof can be further referred to the related description in the method embodiment.
FIG. 3 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present invention. The electronic device shown in fig. 3 may be disposed in the BMS, and the electronic device is only an example and should not bring any limitation to the function and the use range of the embodiment of the present invention.
As shown in fig. 3, the electronic device is in the form of a general purpose computing device. Components of the electronic device may include, but are not limited to: one or more processors 310, a memory 330, and a communication bus 340 that couples various system components (including the memory 330 and the processing unit 310).
Electronic devices typically include a variety of computer system readable media. Such media may be any available media that is accessible by the electronic device and includes both volatile and nonvolatile media, removable and non-removable media.
A program/utility having a set (at least one) of program modules, including but not limited to an operating system, one or more application programs, other program modules, and program data, may be stored in memory 330, each of which examples or some combination may include an implementation of a network environment. The program modules generally perform the functions and/or methodologies of the described embodiments of the invention.
The electronic device may also communicate with one or more external devices, may also communicate with one or more devices that enable a user to interact with the electronic device, and/or may communicate with any device (e.g., network card, modem, etc.) that enables the electronic device to communicate with one or more other computing devices. Such communication may occur via communications interface 320. Furthermore, the electronic device may also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network such as the Internet) via a Network adapter (not shown in FIG. 3) that may communicate with other modules of the electronic device via communication bus 340. It should be appreciated that although not shown in FIG. 3, other hardware and/or software modules may be used in conjunction with the electronic device, including but not limited to: microcode, device drivers, Redundant processing units, external disk drive Arrays, disk array (RAID) systems, tape Drives, and data backup storage systems, among others.
The processor 310 executes various functional applications and data processing by executing programs stored in the memory 330, for example, implementing a vehicle battery temperature abnormality processing method according to an embodiment of the present invention.
The embodiment of the invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the vehicle battery temperature abnormity method provided by the embodiment of the invention.
The computer-readable storage medium described above may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having 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), a 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 foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not 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, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention 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, or in a form of hardware plus a software functional unit.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A vehicle battery temperature abnormality processing method is applied to a Battery Management System (BMS) and comprises the following steps:
receiving first battery temperature data sent by a temperature sensor at a first time;
determining a first time zone according to the first time if the first battery temperature data exceeds a fault threshold, the first time zone including the first time;
determining whether each battery temperature data in the first time zone has a temperature sensor abnormality characteristic;
if the temperature data of each battery in the first time region has the abnormal characteristic of the temperature sensor, sending a first control signal to a VCU (vehicle control unit), wherein the first control signal is used for indicating the VCU to maintain the working state of the vehicle battery and sending out fault information of the temperature sensor;
and if the temperature data of each battery in the first time zone does not have the abnormal characteristic of the temperature sensor, sending a second control signal to the VCU, wherein the second control signal is used for indicating the VCU to disconnect the power supply of the vehicle battery to the vehicle.
2. The method of claim 1, wherein the first battery temperature data exceeds a fault threshold, comprising:
determining a charge-discharge state of a vehicle battery;
determining that the first battery temperature data exceeds a fault threshold if the vehicle battery is in a discharge state and the first battery temperature data is greater than a discharge fault threshold, or if the vehicle battery is in a charge state and the first battery temperature data is greater than a charge fault threshold.
3. The method of claim 2, wherein each battery temperature data in the first time zone has a temperature sensor anomaly characteristic if each battery temperature data in the first time zone satisfies one or more of:
the battery temperature data which is smaller than a low-temperature threshold or higher than a high-temperature threshold exists in the first time region, and the duration time exceeds the first threshold;
the difference between two battery temperature data with continuous sampling time is larger than a second threshold value;
the mean value of the battery temperature data in a first time region is Tavg, and the battery temperature data with the absolute value of the difference value of the Tavg greater than a third threshold value exists in the first time region;
and a first sub-time period exists in the first time zone, all the battery temperature data in the first sub-time period are greater than a fourth threshold, and the heating rate of the first sub-time period is greater than a fifth threshold.
4. The method of claim 1, wherein sending a second control signal to the VCU instructing the VCU to disconnect power from the vehicle battery to the vehicle comprises:
sending a second control signal to the VCU, so that the VCU sends a battery disconnection instruction to the BMS after receiving the second control signal;
and disconnecting the power supply of the vehicle battery to the vehicle after receiving the battery disconnection instruction.
5. The method of claim 4, wherein disconnecting the vehicle battery from powering the vehicle upon receiving the battery disconnect command comprises:
and after the battery disconnection instruction is received, periodically reducing the power of the vehicle battery by taking a sixth threshold value as an interval until the power supply of the vehicle battery to the vehicle is disconnected.
6. The method of claim 1, wherein the second control signal is further used to instruct the VCU to determine that the vehicle battery is a secondary fault and to illuminate a battery fault indicator light.
7. The method of claim 1, wherein the first control signal is further used to instruct the VCU to determine that the vehicle battery is a primary fault and to illuminate a battery overheat indicator light.
8. A vehicle battery temperature abnormality processing device, the device being disposed in a BMS, comprising:
the receiving module is used for receiving first battery temperature data sent by the temperature sensor at a first time;
a determination module to determine a first time zone according to the first time if the first battery temperature data exceeds a fault threshold, the first time zone including the first time;
the judging module is used for determining whether the temperature data of each battery in the first time region has the abnormal characteristics of the temperature sensor;
the first sending module is used for sending a first control signal to a Vehicle Control Unit (VCU) if temperature data of each battery in a first time region has abnormal characteristics of a temperature sensor, wherein the first control signal is used for indicating the VCU to keep the working state of a vehicle battery and sending fault information of the temperature sensor;
and the second sending module is used for sending a second control signal to the VCU if the temperature data of each battery in the first time zone does not have the abnormal characteristic of the temperature sensor, wherein the second control signal is used for indicating the VCU to disconnect the power supply of the vehicle battery to the vehicle.
9. An electronic device, wherein the electronic device is deployed in a BMS, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 7.
10. A computer-readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 7.
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