CN113370847A - Battery safety monitoring method and related equipment - Google Patents
Battery safety monitoring method and related equipment Download PDFInfo
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- CN113370847A CN113370847A CN202110890004.1A CN202110890004A CN113370847A CN 113370847 A CN113370847 A CN 113370847A CN 202110890004 A CN202110890004 A CN 202110890004A CN 113370847 A CN113370847 A CN 113370847A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The embodiment of the application provides a battery safety monitoring method and related equipment, belongs to the technical field of electric automobiles, and solves the problem that the temperature rise abnormity of a vehicle battery cannot be monitored in the process of charging the electric automobile in the existing scheme. The method comprises the following steps: acquiring the initial temperature of the battery as the lowest temperature; acquiring the real-time charging temperature of the battery; obtaining a temperature difference according to the lowest temperature and the real-time charging temperature; calculating a temperature rise rate based on the temperature difference; and judging the safety state of the battery according to the temperature rise speed and the temperature difference.
Description
Technical Field
The embodiment of the application relates to the technical field of data processing, in particular to an idle computing power calling method of a switch and related equipment.
Background
With the mass production and application of new energy automobiles and electric automobiles, the safety operation of the vehicles is guaranteed to be the first requirement, so that the problems are timely discovered and become a hotspot of research in the new energy industry, wherein the problems are prevented from being caused by expansion and fire due to thermal runaway in charging of the vehicles. In the prior art, the configurable vehicle temperature difference abnormity, the vehicle temperature rise abnormity and the vehicle temperature overhigh are used for detecting, alarming and recording in real time. Because fill electric pile temperature sensing quantity limited, can not detect all electric automobile bulk temperature, so when taking place the thermal runaway in the vehicle charges, can not effectual discernment to can't carry out effectual safeguard measure.
Disclosure of Invention
An object of the embodiment of the application is to provide a battery safety monitoring method for an electric vehicle, which solves the technical problem that in the prior art, when thermal runaway occurs during vehicle charging, the thermal runaway cannot be effectively identified.
In a first aspect, an embodiment of the present application provides a battery safety monitoring method for an electric vehicle, including:
acquiring the initial temperature of the battery as the lowest temperature;
acquiring the real-time charging temperature of the battery;
obtaining a temperature difference according to the lowest temperature and the real-time charging temperature;
when the temperature difference reaches a threshold value, calculating the temperature rise speed of the battery;
and judging the safety state of the battery according to the temperature rise speed and the temperature difference.
Optionally, the step of obtaining the initial temperature of the battery as the lowest temperature includes:
acquiring an initial charging message of the battery, wherein the initial charging message comprises a first initial temperature inside the battery and a second initial temperature on the surface of the battery;
obtaining an initial temperature of the battery based on a first initial temperature inside the battery and a second initial temperature of a surface of the battery;
the above initial temperature was taken as the lowest temperature.
Optionally, the step of obtaining the initial temperature of the battery based on the first initial temperature inside the battery and the second initial temperature on the surface of the battery includes:
obtaining an average initial temperature of the battery based on the first initial temperature and the second initial temperature;
the average initial temperature is set as the initial temperature of the battery.
Optionally, the step of obtaining the real-time charging temperature of the battery includes:
acquiring a real-time charging message of the battery, wherein the real-time charging message comprises a first real-time temperature inside the battery and a second real-time temperature on the surface of the battery;
and obtaining the real-time charging temperature of the battery based on the first real-time temperature inside the battery and the second real-time temperature on the surface of the battery.
Optionally, the step of obtaining the real-time charging temperature of the battery based on the first real-time temperature inside the battery and the second real-time temperature on the surface of the battery includes:
obtaining an average real-time temperature of the battery based on the first real-time temperature and the second real-time temperature;
and taking the average real-time temperature as the real-time charging temperature.
Optionally, before the step of calculating the temperature increase rate of the battery when the temperature difference reaches the threshold, the method further includes:
establishing a threshold value corresponding table according to the type of a preset vehicle battery and the threshold value;
and selecting the threshold corresponding to the target vehicle battery type according to the target vehicle battery type and the threshold corresponding table, wherein the threshold comprises a temperature difference threshold and a temperature rise speed threshold.
Optionally, the step of calculating the temperature increase rate of the battery when the temperature difference reaches a threshold value includes:
acquiring target vehicle information, wherein the target vehicle information comprises a target vehicle battery type and a charging time length;
judging whether the temperature difference reaches the temperature difference threshold value according to the target vehicle battery type and the threshold value corresponding table;
and if the temperature difference reaches the temperature difference threshold value, calculating the temperature rise speed of the battery according to the charging time length.
In a second aspect, an embodiment of the present application provides a battery safety monitoring device for an electric vehicle, including:
the data acquisition module is used for acquiring the initial temperature of the battery as the lowest temperature;
the real-time module is used for acquiring the real-time charging temperature of the battery;
the calculation module is used for obtaining a temperature difference according to the lowest temperature and the real-time charging temperature;
the judging module is used for calculating the temperature rise speed of the battery when the temperature difference reaches a threshold value;
and the control module is used for judging the safety state of the battery according to the temperature rise speed and the temperature difference.
In a third aspect, an embodiment of the present application provides an electronic device, including: the battery safety monitoring method for the electric vehicle is characterized in that the battery safety monitoring method for the electric vehicle comprises the steps of storing a battery safety monitoring program, storing a computer program in the memory, and running the computer program on the processor.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored: when being executed by a processor, the computer program realizes the steps of the battery safety monitoring method of the electric automobile.
According to the battery safety monitoring method for the electric automobile, the initial temperature of the battery is obtained and used as the lowest temperature; acquiring the real-time charging temperature of the battery; obtaining a temperature difference according to the lowest temperature and the real-time charging temperature; when the temperature difference reaches a threshold value, calculating the temperature rise speed of the battery; and judging the safety state of the battery according to the temperature rise speed and the temperature difference. The temperature of the battery of the electric automobile is monitored through the charging pile, the temperature condition of the battery of the electric automobile is obtained in real time, when the temperature of the battery of the electric automobile is abnormal, the charging is stopped in time, an alarm is given out, the accident situation is avoided, and the risk is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a battery safety monitoring method for an electric vehicle according to an embodiment of the present application;
fig. 2 is a schematic diagram of a battery safety monitoring device of an electric vehicle according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a storage electronic device according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present application;
fig. 5 is an application scenario diagram of a battery safety monitoring method for an electric vehicle according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
The terms "comprising" and "having," and any variations thereof, as referred to in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The battery safety monitoring method for the electric automobile provided by the embodiment of the invention is shown in fig. 1 and comprises the following steps:
s101: acquiring the initial temperature of the battery as the lowest temperature;
in a possible embodiment, the step of obtaining the initial temperature of the battery as the lowest temperature includes:
acquiring an initial charging message of the battery, wherein the initial charging message comprises a first initial temperature inside the battery and a second initial temperature on the surface of the battery;
obtaining an initial temperature of the battery based on a first initial temperature inside the battery and a second initial temperature of a surface of the battery;
the above initial temperature was taken as the lowest temperature.
For example, a temperature sensor is disposed on the charging gun, when the charging gun contacts the battery, an initial temperature of the surface of the battery is obtained, an initial temperature of the inside of the battery is obtained through a charging message, and an average temperature of the initial temperature of the surface of the battery and the initial temperature of the inside of the battery is calculated as a minimum temperature, so that temperature detection is more accurate, and the problem that the initial temperature of the surface of the battery is influenced by an external temperature to cause inaccurate temperature detection is avoided.
S102: acquiring the real-time charging temperature of the battery;
in a possible embodiment, the step of obtaining the real-time charging temperature of the battery includes:
acquiring a real-time charging message of the battery, wherein the real-time charging message comprises a first real-time temperature inside the battery and a second real-time temperature on the surface of the battery;
and obtaining the real-time charging temperature of the battery based on the first real-time temperature inside the battery and the second real-time temperature on the surface of the battery.
Illustratively, a first real-time temperature inside the battery and a second real-time temperature on the surface of the battery are obtained, and an average value of the real-time temperatures inside the battery and on the surface of the battery is calculated, so that the temperature detection is more accurate, and the problem that the initial temperature on the surface of the battery is influenced by the external temperature to cause inaccurate temperature detection is avoided.
S103: obtaining a temperature difference according to the lowest temperature and the real-time charging temperature;
illustratively, a real-time temperature difference is obtained according to the minimum temperature and the real-time charging temperature, so that the temperature condition of the battery can be known at any time, and further, the battery can be prevented from being overhigh in temperature and causing accidents.
S104: when the temperature difference reaches a threshold value, calculating the temperature rise speed of the battery;
illustratively, the threshold value is set for the temperature difference, so that the calculation of the temperature rising speed under the condition that the battery is normally charged is avoided, the calculation resources are saved, and the battery monitoring efficiency is improved.
S105: and judging the safety state of the battery according to the temperature rise speed and the temperature difference.
Acquiring the initial temperature of the battery as the lowest temperature; acquiring the real-time charging temperature of the battery; obtaining a temperature difference according to the lowest temperature and the real-time charging temperature; when the temperature difference reaches a threshold value, calculating the temperature rise speed of the battery; and judging the safety state of the battery according to the temperature rise speed and the temperature difference. The safety of the batteries of the electric automobile is verified through the temperature difference and the heating speed, and the problems that when the safety of the batteries is detected only through the temperature difference, the safety of the batteries is targeted due to different temperature heat resistance of the batteries of different types, the detection can be carried out only by obtaining the limit value of the temperature difference according to the highest tolerance temperature of one type of batteries, the detection parameters are single, and the detection method cannot be applied to all vehicles are solved. When the battery is charged, the temperature rise speed of the battery is reduced along with the charging time under the normal condition, and when the safety of the battery is detected only through the temperature rise speed, the normal temperature rise condition of the battery is easily regarded as a dangerous condition, and an alarm is triggered by mistake, so that the charging experience of a user is influenced. The temperature of the battery of the electric automobile is monitored through the charging pile, the temperature condition of the battery of the electric automobile is obtained in real time, when the temperature of the battery of the electric automobile is abnormal, the charging is stopped in time, an alarm is given out, the accident situation is avoided, and the risk is reduced.
In one possible embodiment, the step of obtaining the initial temperature of the battery based on a first initial temperature inside the battery and a second initial temperature of the surface of the battery includes:
obtaining an average initial temperature of the battery based on the first initial temperature and the second initial temperature;
the average initial temperature is set as the initial temperature of the battery.
Illustratively, the average value of the real-time temperatures of the interior of the battery and the surface of the battery is calculated, so that the problem of inaccurate temperature detection caused by the influence of the external temperature on the initial temperature of the surface of the battery is avoided
In one possible embodiment, the step of obtaining the real-time charging temperature of the battery based on a first real-time temperature inside the battery and a second real-time temperature on a surface of the battery includes:
obtaining an average real-time temperature of the battery based on the first real-time temperature and the second real-time temperature;
and taking the average real-time temperature as the real-time charging temperature.
Illustratively, a first real-time temperature inside the battery and a second real-time temperature on the surface of the battery are obtained, and an average value of the real-time temperatures inside the battery and on the surface of the battery is calculated, so that the temperature detection is more accurate, and the problem that the initial temperature on the surface of the battery is influenced by the external temperature to cause inaccurate temperature detection is avoided.
In one possible embodiment, before the step of calculating the temperature increase rate of the battery when the temperature difference reaches the threshold value, the method further includes:
establishing a threshold value corresponding table according to the type of a preset vehicle battery and the threshold value;
and selecting the threshold corresponding to the target vehicle battery type according to the target vehicle battery type and the threshold corresponding table, wherein the threshold comprises a temperature difference threshold and a temperature rise speed threshold.
Illustratively, different threshold values are set according to the types of the target vehicle batteries, different threshold values can be adopted according to different vehicles and users, so that the user experience is improved, the charging requirements of different users are met, and the monitoring on different target vehicle battery types can be realized when different users charge.
In one possible embodiment, the step of calculating the temperature increase rate of the battery when the temperature difference reaches a threshold value includes:
acquiring target vehicle information, wherein the target vehicle information comprises a target vehicle battery type and a charging time length;
judging whether the temperature difference reaches the temperature difference threshold value according to the target vehicle battery type and the threshold value corresponding table;
and if the temperature difference reaches the temperature difference threshold value, calculating the temperature rise speed of the battery according to the charging time length.
Illustratively, different thresholds are set according to the type of the target vehicle battery and the charging duration, different thresholds can be adopted according to different vehicles and users, so that the user experience is improved, the charging requirements of different users are met, and the monitoring of different target vehicle battery types can be realized when different users charge.
As shown in fig. 5, the threshold value correspondence table is configured, when a user starts a gun through a charging pile to charge and a plurality of vehicles of different brands are charged, the monitoring processing center monitors the charging process in real time through the charging processing center and the cloud processor, and judges according to the above rules, and when the highest temperature of the vehicle is equal to the difference between the real-time temperature and the lowest temperature of the application, which is more than 20 ℃, and meets the above rules, the monitoring processing center gives an alarm and stops charging; the monitoring processing center monitors vehicles in the charging process in real time, after the highest temperature in a vehicle battery is greater than 25 ℃ (configurable), the temperature rise speed is greater than 10 ℃/min (configurable), the temperature rise degree is greater than 25 ℃ (after the highest temperature of the battery is greater than 25 ℃, the temperature rise degree is the highest temperature difference between a first message and a last message in 1 minute), the monitoring processing center monitors the vehicles in the charging process in real time, when the highest temperature of the battery reaches the highest allowable battery temperature of the vehicles, the BMS does not send a shutdown instruction, the monitoring processing center alarms and stops charging, operation related personnel troubleshoot problems, and after the problems are solved, the alarm state of the monitoring processing center becomes repaired.
In one possible implementation, as shown in fig. 2, an embodiment of the present application provides a battery safety monitoring device for an electric vehicle, including:
the data acquisition module 201 is used for acquiring the initial temperature of the battery as the lowest temperature;
a real-time module 202, configured to obtain a real-time charging temperature of the battery;
a calculating module 203, configured to obtain a temperature difference according to the minimum temperature and the real-time charging temperature;
a determining module 204, configured to calculate a temperature rising rate of the battery when the temperature difference reaches a threshold;
and a control module 205 for determining the safety state of the battery according to the temperature rise rate and the temperature difference.
In one possible real-time mode, as shown in fig. 3, an embodiment of the present invention provides an electronic device, which includes a memory 310, a processor 320, and a computer program 311 stored in the memory 320 and running on the processor 320, where the processor 320 executes the computer program 311 to implement: acquiring the initial temperature of the battery as the lowest temperature; acquiring the real-time charging temperature of the battery; obtaining a temperature difference according to the lowest temperature and the real-time charging temperature; when the temperature difference reaches a threshold value, calculating the temperature rise speed of the battery; and judging the safety state of the battery according to the temperature rise speed and the temperature difference.
In one possible real-time approach, as shown in fig. 4, the present embodiment provides a computer-readable storage medium 400, on which a computer program 411 is stored, the computer program 411 realizing, when executed by a processor: acquiring the initial temperature of the battery as the lowest temperature; acquiring the real-time charging temperature of the battery; obtaining a temperature difference according to the lowest temperature and the real-time charging temperature; when the temperature difference reaches a threshold value, calculating the temperature rise speed of the battery; and judging the safety state of the battery according to the temperature rise speed and the temperature difference.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
For another example, the division of the above-mentioned units is only one logical function division, and there may be other division manners in actual implementation, and for another example, a plurality of units or components may be combined or may be 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 of devices or units through some communication interfaces, and may be in an electrical, mechanical 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 located in one place, or may be distributed on a plurality of network 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 provided in 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 above functions, if implemented in the form of software functional units and sold or used as a separate product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application, which essentially or partly contribute to the prior art, may be embodied in the form of a software product, which is stored in a storage medium and includes several 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 above methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above embodiments are merely specific implementations of the embodiments of the present application, which are used to illustrate the technical solutions of the embodiments of the present application and not to limit the embodiments, and the scope of the embodiments of the present application is not limited thereto, and although the embodiments of the present application are described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the embodiments of the present application; such modifications, changes or substitutions do not depart from the scope of the embodiments of the present application. Are intended to be covered by the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A battery safety monitoring method of an electric automobile is characterized by comprising the following steps:
acquiring the initial temperature of the battery as the lowest temperature;
acquiring the real-time charging temperature of the battery;
obtaining a temperature difference according to the lowest temperature and the real-time charging temperature;
when the temperature difference reaches a threshold value, calculating the temperature rise speed of the battery;
and judging the safety state of the battery according to the temperature rise speed and the temperature difference.
2. The battery safety monitoring method of an electric vehicle according to claim 1, wherein the step of obtaining an initial temperature of the battery as a minimum temperature includes:
acquiring an initial charging message of the battery, wherein the initial charging message comprises a first initial temperature inside the battery and a second initial temperature on the surface of the battery;
obtaining an initial temperature of the battery based on a first initial temperature of the interior of the battery and a second initial temperature of the surface of the battery;
the initial temperature is taken as the lowest temperature.
3. The battery safety monitoring method of an electric vehicle according to claim 2, wherein the step of obtaining the initial temperature of the battery based on a first initial temperature inside the battery and a second initial temperature on a surface of the battery comprises:
obtaining an average initial temperature of the battery based on the first initial temperature and the second initial temperature;
taking the average initial temperature as the initial temperature of the battery.
4. The battery safety monitoring method for the electric vehicle according to claim 1, wherein the step of obtaining the real-time charging temperature of the battery comprises:
acquiring a real-time charging message of the battery, wherein the real-time charging message comprises a first real-time temperature inside the battery and a second real-time temperature on the surface of the battery;
the real-time charging temperature of the battery is obtained based on a first real-time temperature inside the battery and a second real-time temperature on the surface of the battery.
5. The battery safety monitoring method for the electric vehicle according to claim 4, wherein the step of obtaining the real-time charging temperature of the battery based on the first real-time temperature inside the battery and the second real-time temperature on the surface of the battery comprises:
obtaining an average real-time temperature of the battery based on the first real-time temperature and the second real-time temperature;
and taking the average real-time temperature as the real-time charging temperature.
6. The method for monitoring the safety of the battery of the electric vehicle according to claim 1, wherein before the step of calculating the temperature increase speed of the battery when the temperature difference reaches a threshold value, the method further comprises:
establishing a threshold value corresponding table according to the type of a preset vehicle battery and the threshold value;
and selecting the threshold corresponding to the target vehicle battery type according to the target vehicle battery type and the threshold corresponding table, wherein the threshold comprises a temperature difference threshold and a temperature rise speed threshold.
7. The method for monitoring the safety of the battery of the electric vehicle according to claim 6, wherein the step of calculating the temperature rise speed of the battery when the temperature difference reaches a threshold value comprises:
acquiring target vehicle information, wherein the target vehicle information comprises a target vehicle battery type and a charging time length;
judging whether the temperature difference reaches the temperature difference threshold value or not according to the target vehicle battery type and the threshold value corresponding table;
and if the temperature difference reaches the temperature difference threshold, calculating the temperature rise speed of the battery according to the charging time length.
8. The utility model provides an electric automobile's battery safety monitoring device which characterized in that includes:
the data acquisition module is used for acquiring the initial temperature of the battery as the lowest temperature;
the real-time module is used for acquiring the real-time charging temperature of the battery;
the calculation module is used for obtaining a temperature difference according to the lowest temperature and the real-time charging temperature;
the judging module is used for calculating the temperature rise speed of the battery when the temperature difference reaches a threshold value;
and the control module is used for judging the safety state of the battery according to the temperature rise speed and the temperature difference.
9. An electronic device, comprising: memory, processor and computer program stored in the memory and executable on the processor, characterized in that the processor is configured to implement the steps of the method for monitoring battery safety of an electric vehicle according to any one of claims 1 to 7 when executing the computer program stored in the memory.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when being executed by a processor, realizes the steps of the battery safety monitoring method of an electric vehicle according to any one of claims 1 to 7.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144037A (en) * | 2022-08-30 | 2022-10-04 | 苏州时代华景新能源有限公司 | Safety monitoring method and system for explosion-proof performance of lithium battery |
| CN115447439A (en) * | 2022-09-19 | 2022-12-09 | 特瓦特能源科技有限公司 | Charging safety early warning method, system, equipment and medium based on battery temperature |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104656026A (en) * | 2014-11-13 | 2015-05-27 | 浙江吉利罗佑发动机有限公司 | Diagnostic method and system for overcharge of battery of hybrid electric vehicle |
| CN111301220A (en) * | 2020-03-06 | 2020-06-19 | 江西江铃集团新能源汽车有限公司 | Charging control method and system for electric automobile |
| CN111645568A (en) * | 2019-10-14 | 2020-09-11 | 北京嘀嘀无限科技发展有限公司 | Safe charging method, storage medium, electronic device and system |
| CN111845420A (en) * | 2020-07-07 | 2020-10-30 | 北京嘀嘀无限科技发展有限公司 | Charging protection method and device, electronic equipment, server and storage medium |
| WO2021065959A1 (en) * | 2019-10-02 | 2021-04-08 | 株式会社デンソー | Charging control device |
| CN112886674A (en) * | 2021-03-16 | 2021-06-01 | 南京航空航天大学 | Multi-objective optimization charging control method for lithium battery |
-
2021
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104656026A (en) * | 2014-11-13 | 2015-05-27 | 浙江吉利罗佑发动机有限公司 | Diagnostic method and system for overcharge of battery of hybrid electric vehicle |
| WO2021065959A1 (en) * | 2019-10-02 | 2021-04-08 | 株式会社デンソー | Charging control device |
| CN111645568A (en) * | 2019-10-14 | 2020-09-11 | 北京嘀嘀无限科技发展有限公司 | Safe charging method, storage medium, electronic device and system |
| CN111301220A (en) * | 2020-03-06 | 2020-06-19 | 江西江铃集团新能源汽车有限公司 | Charging control method and system for electric automobile |
| CN111845420A (en) * | 2020-07-07 | 2020-10-30 | 北京嘀嘀无限科技发展有限公司 | Charging protection method and device, electronic equipment, server and storage medium |
| CN112886674A (en) * | 2021-03-16 | 2021-06-01 | 南京航空航天大学 | Multi-objective optimization charging control method for lithium battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144037A (en) * | 2022-08-30 | 2022-10-04 | 苏州时代华景新能源有限公司 | Safety monitoring method and system for explosion-proof performance of lithium battery |
| CN115447439A (en) * | 2022-09-19 | 2022-12-09 | 特瓦特能源科技有限公司 | Charging safety early warning method, system, equipment and medium based on battery temperature |
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