CN110515006A - A kind of battery pack, the management method of battery pack and vehicle - Google Patents
A kind of battery pack, the management method of battery pack and vehicle Download PDFInfo
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- CN110515006A CN110515006A CN201910800999.0A CN201910800999A CN110515006A CN 110515006 A CN110515006 A CN 110515006A CN 201910800999 A CN201910800999 A CN 201910800999A CN 110515006 A CN110515006 A CN 110515006A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Nonlinear Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of battery pack, the management method of battery pack and vehicles, the management method of the battery pack includes the temperature value for acquiring battery pack main switch, main fuse, positive contact output end, negative contact output end, judge whether to be alarmed in secure threshold section according to judging result;Judge whether temperature value can restore threshold interval, is alarmed according to judging result.The battery pack includes built-in circuit and abnormity detection portion;Abnormity detection portion is for detecting in built-in circuit, the temperature of main switch, main fuse and current output terminal, temperature anomaly alarm.The vehicle includes above-mentioned battery pack.The present invention can Temperature Distribution in real-time monitoring battery pack, different alarm signals is issued according to temperature anomaly degree.The present invention can have found abort situation in time, so that user has the sufficient time to take corresponding measure, avoiding the operation conditions of battery pack from further deteriorating leads to safety accident.
Description
Technical field
The present invention relates to automotive fields, specifically for, the present invention relates to a kind of battery packs, the management method of battery pack
And vehicle.
Background technique
Currently, with the development of new-energy automobile, the occupation rate of market fast lifting of electric car.As dynamical system
Source, vehicle important component, power battery pack need to have very high safety and reliability.When battery pack is with operation
Between extension can generate loosening, insulation ag(e)ing and the shelf depreciation of crimp head, high-pressure leakage, the creep of contacts of contactor etc.
Problem.Fever meeting caused by the above problem also will cause thermal runaway so that the operation conditions of battery pack further deteriorates when serious,
Influence the safety and reliability of battery pack.So the operating status of monitoring battery pack is of great significance.But electric car
Battery pack is a closed cabinet, and the marginal testing of battery pack internal circuit is difficult.The prior art passes through monitoring environment temperature
Degree or battery core surface temperature monitor the operating status of battery pack, and this method cannot temperature in monitoring battery pack promptly and accurately
Variation, can not analyze the reason of causing battery pack temperature change.
Therefore, how Temperature Distribution in battery pack is timely and accurately monitored, simultaneously temperature is different in temperature anomaly alarm
Normal position issues different alarm signals according to temperature anomaly degree, becomes those skilled in the art's technology urgently to be resolved
Problem and the emphasis studied always.
Summary of the invention
Temperature change in battery pack cannot be promptly and accurately monitored to solve existing battery pack, is unfavorable for analysis and causes temperature
The problems such as reason of exception, present invention innovation provide a kind of management method of battery pack, comprising the following steps:
Step 1: obtaining the first simulation number by being set to the first acquisition module at the first contact of battery pack main switch
According to obtaining the second analogue data by being set to the second acquisition module at the second contact of battery pack main switch, pass through setting
Third analogue data is obtained in the third acquisition module of battery pack main fuse, by being set to battery pack positive contact output end
The 4th acquisition module obtain the 4th analogue data, by be set to battery pack negative contact output end the 5th acquisition module obtain
5th analogue data;
Step 2: according to default selecting sequence, to first analogue data, second analogue data, the third mould
At least one analogue data in quasi- data, the 4th analogue data and the 5th analogue data carries out analog-to-digital conversion, with
It obtains in the first numerical data, the second numerical data, third numerical data, the 4th numerical data and the 5th numerical data at least
A kind of numerical data;
Step 3: the obtained corresponding temperature value of numerical data being determined by lookup table mode, is closed using the first default mapping
It is the corresponding secure threshold section of temperature value;Judge all temperature values whether in its corresponding secure threshold section,
To obtain the first judging result;
Step 4: if the first judging result be it is no, send the first alarm signal to user;If the first judging result
It is yes, then return step 1.
Based on above-mentioned technical solution, the present invention being capable of temperature in real-time monitoring battery pack at easily worn part.The present invention
The position of the variation of temperature and temperature variation in battery pack can be detected, accurately convenient for analyzing the original for causing temperature change
Cause.The present invention can have found failure tie point in time, and alarm, so that user has the sufficient time to take corresponding measure,
Avoiding the operation conditions of battery pack from further deteriorating leads to safety accident.
Further, this method further includes step 5;
Step 5, when the first judging result is no, restore using the second default mapping relations temperature value is corresponding
Threshold interval, then judges whether temperature value can restore in threshold interval, to obtain the second judging result;If second sentences
Disconnected result be it is no, then send the second alarm signal to user.
Based on above-mentioned improved technical solution, the present invention can issue different according to the severity of temperature anomaly situation
Alarm signal.
Further, this method further includes step 6;
Step 6, when the second judging result is no, then battery pack is controlled in preset duration and stopped working.
Based on above-mentioned improved technical solution, when temperature value is too high or too low to be restored, control battery pack stops work
Make, avoiding the operation conditions of battery pack from further deteriorating leads to thermal runaway.
Further, this method further includes step 7;
Step 7, when the second judging result, which is, is, then further judge whether temperature value is greater than corresponding secure threshold area
Between maximum value, to obtain third judging result;If third judging result be it is yes, cool down to battery pack.
Based on above-mentioned improved technical solution, when abnormal temperature can restore in threshold interval and be higher than secure threshold area
Between, then cool down battery pack so that battery pack restores normal operating conditions as early as possible.
Preferably, step 4 further include: the first judging result be it is no, then anomalous counts add one;Judge whether anomalous counts are big
In setting value, to obtain the 4th judging result;Such as the 4th judging result is yes, then sends the 4th alarm signal to user.
Based on above-mentioned improved technical solution, temperature anomaly, which is counted, then issues alarm signal greater than setting number, can avoid
There is error in single detection.
Preferably, this method further includes step 9;Step 9: presetting mapping relations temperature using third and be worth corresponding temperature
Spend changing value;Compare the maximum value of the corresponding temperature value variation of each acquisition module in special time period one by one;Described in judgement
Whether maximum value is less than temperature change value, to obtain the 5th judging result;If the 5th judging result be it is no, send third
Alarm signal is to user.
It can be in temperature changing speed exception by monitoring temperature variations based on above-mentioned improved technical solution
Alarm, finds failure problems in time.
Preferably, step 2 further includes following steps;
First contact, the second contact, main fuse, battery pack positive contact output end and battery pack negative contact output end are pressed
According to sorting from high to low a possibility that breaking down, the first device, the second device, third device, four device and the 5th are obtained
Device, default selecting sequence are that the corresponding analogue data of the first device of 2-1 selects 10 times, the corresponding simulation number of the second device of 2-2
According to selection 5 times, the corresponding analogue data of 2-3 third device is selected 3 times, and the corresponding analogue data of 2-4 four device selects 2 times,
The corresponding analogue data of the 5th device of 2-5 selects 1 time, and repeat the above steps 2-1~2-5.
Based on above-mentioned improved technical solution, the application can be pressed each device according to new and old, performance and manufacturer etc.
According to sequence a possibility that breaking down.The detection frequency of the device high to the possibility that breaks down is improved, detection efficiency is higher.
To realize the above-mentioned technical purpose, the invention also discloses a kind of battery packs, comprising:
Built-in circuit and abnormity detection portion;
Built-in circuit includes main switch, main fuse and current output terminal;
Main switch, for controlling built-in circuit on-off;Main fuse, for cutting off built-in circuit;Current output terminal is used for
Export electric current;Main switch includes the first contact and the second contact;Current output terminal includes positive contact output end and negative contact output
End;
Abnormity detection portion include be set to the first acquisition module at the first contact, second adopting of being set at the second contact
Collection module, be set to main fuse third acquisition module, be set to positive contact output end the 4th acquisition module, be set to it is negative
5th acquisition module of contact output end, control unit;Control unit is used to judge that acquisition module is adopted according to default selecting sequence
Whether the data of collection are in secure threshold section, if it is judged that otherwise to send the first alarm signal to user;Further
Judge acquisition module acquisition data whether can restore in threshold interval, judging result be it is no, then send the second alarm signal
To user.
Based on above-mentioned technical solution, the present invention being capable of temperature in real-time monitoring battery pack at easily worn part.The present invention
The position of the variation of temperature and temperature variation in battery pack can be detected, accurately convenient for analyzing the original for causing temperature change
Cause.The present invention can have found failure tie point in time, and alarm, so that user has the sufficient time to take corresponding measure,
Avoiding the operation conditions of battery pack from further deteriorating leads to safety accident.
To realize the above-mentioned technical purpose, the invention also discloses a kind of vehicles, including above-mentioned battery pack.
The invention has the benefit that the present invention being capable of temperature in real-time monitoring battery pack at easily worn part.The present invention
Different alarm signals can be issued according to temperature anomaly degree.The present invention can monitor temperature changing speed to find in time
Fault message.The present invention can have found abort situation in time, so that user has the sufficient time to take corresponding measure, avoid
The operation conditions of battery pack, which further deteriorates, leads to safety accident.
Detailed description of the invention
Fig. 1 is a kind of management method flow chart of preferred embodiment battery pack of the application.
Fig. 2 is a kind of cross-sectional view of preferred embodiment battery pack of the application.
In figure, 1, shell;2, temperature sensor;3, main switch;4, main fuse;5, positive output interface;6, negative output connects
Mouthful;
Specific embodiment
With reference to the accompanying drawings of the specification to a kind of detailed explanation and illustration of battery pack progress of the present invention.
As shown in Figure 1, this application discloses a kind of management methods of battery pack, comprising the following steps:
Step 1: obtaining the first simulation number by being set to the first acquisition module at the first contact of battery pack main switch
According to obtaining the second analogue data by being set to the second acquisition module at the second contact of battery pack main switch, pass through setting
Third analogue data is obtained in the third acquisition module of battery pack main fuse, by being set to battery pack positive contact output end
The 4th acquisition module obtain the 4th analogue data, by be set to battery pack negative contact output end the 5th acquisition module obtain
5th analogue data.Preferably, acquisition module includes temperature sensor 2.Temperature sensor 2 is preferably thermistor.Temperature-sensitive electricity
Resistance is preferably negative tempperature coefficient thermistor.Thermistor is preferably bolted at corresponding contact.Further, temperature-sensitive
Compression piece is provided between resistance and contact.Piece is compressed preferably to insulate with thermistor.
Step 2: according to default selecting sequence, to first analogue data, second analogue data, the third mould
At least one analogue data in quasi- data, the 4th analogue data and the 5th analogue data carries out analog-to-digital conversion, with
It obtains in the first numerical data, the second numerical data, third numerical data, the 4th numerical data and the 5th numerical data at least
A kind of numerical data.Preferably, analogue data is issued analog-digital converter by acquisition module.Analog-digital converter is by the number after conversion
Data are sent to digital processing unit.Preferably, by the first contact, the second contact, main fuse, battery pack positive contact output end and
Battery pack negative contact output end obtains the first device, the second device, third according to sorting from high to low a possibility that breaking down
Device, four device and the 5th device.For example, the first device is main fuse, the second device is battery pack positive contact output end,
Third device is battery pack negative contact output end, and four device is the first contact, and the 5th device is the second contact.Default selection is suitable
Sequence is that 2-1 is selected third analogue data 10 times, and 2-2 is selected the 4th analogue data 5 times, and 2-3 is selected the 5th analogue data 3 times, 2-
4 selections the first analogue data 2 times, 2-5 is selected the second analogue data 1 time, and repeat the above steps 2-1-2-5.That breaks down can
Energy property preferably sorts according to the replacement date each device the last time from the distant to the near.Preferably, a possibility that breaking down is according to life
Produce the durability degree sequence that producer provides.
Step 3: the obtained corresponding temperature value of numerical data being determined by lookup table mode, is closed using the first default mapping
It is the corresponding secure threshold section of temperature value;Different types of numerical data corresponds to different in a preferred embodiment
Secure threshold section.In a further advantageous embodiment, different types of numerical data corresponds to identical secure threshold section.Sentence
Whether all temperature values that break are in its corresponding secure threshold section, to obtain the first judging result;Secure threshold section
The temperature range of corresponding position when being worked normally for battery pack.Preferably, secure threshold section is 5 DEG C~50 DEG C.
Step 4: the first judging result be it is no, then send the first alarm signal to user, anomalous counts add one;Judgement is abnormal
It counts and whether is greater than the set value, to obtain the 4th judging result;Such as the 4th judging result is yes, then sends the 4th alarm signal
To user;Such as the 4th judging result is no, then enters step 1;If the first judging result is yes, return step 1.It is preferred that
Ground, setting value 3.
Step 5: when the first judging result is no, restoring using the second default mapping relations temperature value is corresponding
Threshold interval, then judges whether temperature value can restore in threshold interval, to obtain the second judging result;Preferably at one
Different types of numerical data, which corresponds to, in embodiment different restores threshold interval.In a further advantageous embodiment, different
The numerical data of type, which corresponds to, identical restores threshold interval.If the second judging result be it is no, send the second alarm signal
Number give user.When can to restore threshold interval be preferably that battery pack is in recoverable abnormality, the temperature range of corresponding position.
Preferably, the range that can restore threshold interval is greater than the range in secure threshold section.Preferably, can restore threshold interval is -30
DEG C~70 DEG C.
Step 6: when the second judging result is no, then controlling battery pack in preset duration and stop working.Preferably, in advance
If when a length of 3s.When battery pack is in irreclaimable abnormality, control battery pack stops working, and avoids the fortune of battery pack
Row situation, which further deteriorates, leads to thermal runaway.
Step 7: when the second judging result, which is, is, then further judging whether temperature value is greater than corresponding secure threshold area
Between maximum value, to obtain third judging result;If third judging result be it is yes, cool down to battery pack.Into
Step 1.Preferably, temperature fall time 30s.
Step 8: third judging result be it is no, then battery pack is heated.Enter step 1.Preferably, heating time is
30s.When battery pack is in recoverable abnormality, battery pack is set to restore normal operating conditions as early as possible by heating or cooling down.
Step 9: presetting mapping relations temperature using third and be worth corresponding temperature change value;In a preferred embodiment
In different types of numerical data correspond to different temperature change values.In a further advantageous embodiment, different types of number
Data correspond to identical temperature change value.Compare the corresponding temperature value variation of each acquisition module in special time period one by one
Maximum value;Judge whether the maximum value is less than temperature change value, to obtain the 5th judging result;If the 5th judging result
Be it is no, then send third alarm signal to user.It, can be in temperature changing speed exception Times by monitoring temperature variations
It is alert, failure problems are found in time.Preferably, temperature change value is 30 DEG C, and special time period is two hours.
As shown in Fig. 2, the invention also discloses a kind of battery packs, comprising: built-in circuit and abnormity detection portion;Built-in circuit
Including main switch 3, main fuse 4 and current output terminal;Main switch 3, for controlling built-in circuit on-off;Main fuse 4, is used for
Cut off built-in circuit;Current output terminal, for exporting electric current;Main switch 3 includes the first contact and the second contact;Current output terminal
Including positive contact output end and negative contact output end;In a preferred embodiment, two contact series uses are to improve master
The reliability of switch 3.In a further advantageous embodiment, two contact shunts use, when a contact is damaged, another touching
Point can operate normally.In a preferred embodiment, main fuse 4 is connect with main switch 3, and when main fuse 4 fuses, master is opened
Close 3 control built-in circuit power-off.In a further advantageous embodiment, main fuse 4 and positive output interface 5 or negative output interface 6
Connection.Preferably, battery pack further includes shell 1, and shell 1 is rectangular parallelepiped structure.Shell 1 preferably includes upper housing and lower case,
Upper housing and lower case are bolted.Preferably, upper housing and lower case junction are provided with gasket.Further,
Built-in circuit is fixedly installed on inside shell 1.
Abnormity detection portion include be set to the first acquisition module at the first contact, second adopting of being set at the second contact
Collection module, the 4th acquisition module for being set to positive contact output end, is set to the third acquisition module for being set to main fuse 4
5th acquisition module of negative contact output end, control unit;Control unit is used to judge acquisition module according to default selecting sequence
Whether the data of acquisition are in secure threshold section, if it is judged that otherwise to send the first alarm signal to user;Into one
Step judge acquisition module acquire data whether can restore in threshold interval, judging result be it is no, then send the second alarm signal
Number give user.Preferably, acquisition module includes temperature sensor 2.Temperature sensor 2 is preferably thermistor.Thermistor is excellent
It is selected as negative tempperature coefficient thermistor.Thermistor is preferably bolted at corresponding contact.Further, thermistor
Compression piece is provided between contact.Piece is compressed preferably to insulate with thermistor.Preferably, control unit further includes heating module.
Preferably, control unit further includes radiating module.
The invention also discloses a kind of vehicles, including above-mentioned battery pack.
The invention has the benefit that the present invention being capable of temperature in real-time monitoring battery pack at easily worn part.The present invention
Different alarm signals can be issued according to temperature anomaly degree.The present invention can monitor temperature changing speed to find in time
Fault message.The present invention can have found abort situation in time, so that user has the sufficient time to take corresponding measure, avoid
The operation conditions of battery pack, which further deteriorates, leads to safety accident.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement and simple modifications etc., should all be included in the protection scope of the present invention in content.
Claims (9)
1. a kind of management method of battery pack, which is characterized in that the described method comprises the following steps:
Step 1: obtaining the first analogue data by being set to the first acquisition module at the first contact of battery pack main switch, lead to
It crosses the second acquisition module being set at the second contact of battery pack main switch and obtains the second analogue data, by being set to battery
The third acquisition module of packet main fuse obtains third analogue data, by the be set to battery pack positive contact output end the 4th
Acquisition module obtains the 4th analogue data, and the 5th acquisition module by being set to battery pack negative contact output end obtains the 5th mould
Quasi- data;
Step 2: according to default selecting sequence, number being simulated to first analogue data, second analogue data, the third
Analog-to-digital conversion is carried out according at least one analogue data in, the 4th analogue data and the 5th analogue data, to obtain
At least one of first numerical data, the second numerical data, third numerical data, the 4th numerical data and the 5th numerical data
Numerical data;
Step 3: the obtained corresponding temperature value of numerical data is determined by lookup table mode, it is true using the first default mapping relations
Determine the corresponding secure threshold section of temperature value;Judge all temperature values whether in its corresponding secure threshold section, thus
Obtain the first judging result;
Step 4: if the first judging result be it is no, send the first alarm signal to user;If the first judging result be it is yes,
Then return step 1.
2. a kind of management method of battery pack according to claim 1, which is characterized in that this method further includes step 5;
Step 5, when the first judging result is no, restore threshold value using the second default mapping relations temperature value is corresponding
Section, then judges whether temperature value can restore in threshold interval, to obtain the second judging result;If the second judgement knot
Fruit be it is no, then send the second alarm signal to user.
3. a kind of management method of battery pack according to claim 2, which is characterized in that this method further includes step 6;
Step 6, when the second judging result is no, then battery pack is controlled in preset duration and stopped working.
4. a kind of management method of battery pack according to claim 3, which is characterized in that this method further includes step 7;
Step 7, when the second judging result, which is, is, then further judge whether temperature value is greater than corresponding secure threshold section
Maximum value, to obtain third judging result;If third judging result be it is yes, cool down to battery pack.
5. a kind of management method of battery pack according to claim 4, which is characterized in that step 4 further include: the first judgement
As a result be it is no, then anomalous counts add one;Judge whether anomalous counts are greater than the set value, to obtain the 4th judging result;Such as the
Four judging results be it is yes, then send the 4th alarm signal to user.
6. a kind of management method of battery pack according to claim 5, which is characterized in that this method further includes step 9;Step
Rapid 9: presetting mapping relations temperature using third and be worth corresponding temperature change value;Compare one by one each in special time period
The maximum value of the corresponding temperature value variation of acquisition module;Judge whether the maximum value is less than temperature change value, to obtain
Five judging results;If the 5th judging result be it is no, send third alarm signal to user.
7. a kind of management method of battery pack described in -6 according to claim 1, which is characterized in that step 2 further includes walking as follows
Suddenly;
By the first contact, the second contact, main fuse, battery pack positive contact output end and battery pack negative contact output end according to hair
A possibility that raw failure, sorts from high to low, obtains the first device, the second device, third device, four device and the 5th device,
Default selecting sequence is that the corresponding analogue data of the first device of 2-1 selects 10 times, the corresponding analogue data choosing of the second device of 2-2
It selects 5 times, the corresponding analogue data of 2-3 third device selects 3 times, and the corresponding analogue data of 2-4 four device selects 2 times, 2-5 the
The corresponding analogue data of five devices selects 1 time, and repeat the above steps 2-1~2-5.
8. a kind of battery pack characterized by comprising
Built-in circuit and abnormity detection portion;
Built-in circuit includes main switch, main fuse and current output terminal;
Main switch, for controlling built-in circuit on-off;Main fuse, for cutting off built-in circuit;Current output terminal, for exporting
Electric current;Main switch includes the first contact and the second contact;Current output terminal includes positive contact output end and negative contact output end;
Abnormity detection portion includes the second acquisition mould for being set to the first acquisition module at the first contact, being set at the second contact
Block, the 4th acquisition module for being set to positive contact output end, is set to negative contact at the third acquisition module for being set to main fuse
5th acquisition module of output end, control unit;Control unit is used to judge according to default selecting sequence acquisition module acquisition
Whether data are in secure threshold section, if it is judged that otherwise to send the first alarm signal to user;Further judgement
Acquisition module acquisition data whether can restore in threshold interval, judging result be it is no, then send the second alarm signal to
Family.
9. a kind of vehicle, which is characterized in that the vehicle includes the battery pack in claim 8.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111307318A (en) * | 2020-03-16 | 2020-06-19 | 北京理工大学 | Battery temperature sensor and battery temperature acquisition device |
CN111579121A (en) * | 2020-05-08 | 2020-08-25 | 上海电享信息科技有限公司 | Method for diagnosing temperature fault in new energy automobile battery pack on line based on big data |
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