CN106066457A - A kind of battery thermal runaway detecting system and detection method thereof - Google Patents
A kind of battery thermal runaway detecting system and detection method thereof Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The present invention relates to new energy car battery safety monitoring technology field, particularly relate to a kind of battery thermal runaway detecting system.It includes intelligence instrument, background monitoring center and is arranged at the thermal runaway detector within battery case, it is characterised in that described thermal runaway detector includes data acquisition unit and master control set；Described data acquisition unit is for gathering the current thermal runaway parameter of each detection node within battery case and sending described master control set to；Described master control set includes core cpu processing module, communication transmission module, execution device control module；The invention still further relates to a kind of battery thermal runaway detection method, including judging that whether flame value is more than or equal to flame threshold set in advance；Temperature, gas and smog parameter are carried out data filtering process, extracts eigenvalue；By above-mentioned parameter integrated treatment, determine start extinguishing device fire extinguishing or provide early warning signal.Provide the benefit that: make detecting system energy accurate assurance put out a fire opportunity, hidden danger can be made to dispose in time.
Description
Technical field
The present invention relates to new energy car battery safety monitoring technology field, particularly relating to a kind of battery thermal runaway detection is
System and detection method thereof.
Background technology
Burning that the security incident of electric automobile causes essentially from battery thermal runaway or blast, battery is as electric automobile
Energy-storage units, if its energy is by burning or blast release, power and huge, easily cause casualties.Battery heat
The reason causing burning or blast out of control is that the heat that certain battery core thermal runaway is formed cannot effectively distribute, and flock together formation
Hot environment causes adjacent battery core to produce chain thermal runaway, and heat continues to build up then, causes burning or blast.If in thermal runaway
Heat is effectively distributed or is guided in early days, then the thermal runaway of battery can be avoided, and this may certify that in test at correlational study.
Problematically, battery energy storage is too many, there is no a kind of material at present or technology can be by so many heat absorption in the short time
Fall or distribute.The application of extinguishing medium is to apply more a kind of technological means at present, its object is to avoid naked light
Deflagrate that the heat caused quickly spreads and causes or blast so that the burning of whole battery bag is postponed occurring, for occupant
Strive for escape time.The detection technique of development battery early warning is to provide the response time of personnel, it is to avoid because cell loses
Imitate and pass to other batteries and cause bigger suffering disaster to be extremely critical.Accordingly, it would be desirable to one economic, practical, effectively examine
Examining system can detect that battery is in thermal runaway and when being necessary battery is carried out thermal runaway suppression or fire in early days
Calamity controls, and needs extremely low rate of false alarm and misoperation rate to avoid causing unnecessary fear and loss.
In the system of prior art, general has following two mode to realize early warning.
One is that thermal runaway detects (tens to hundreds of Zhi Dan by the contact between battery compartment electrode and temperature sensor
In one battery bag of body battery core composition, general setting is less than 8 temperature sensors).Its shortcoming is even only one
During cell generation thermal runaway, it is also necessary to the battery location that temperature sensor is arranged in all cells detects.No
Then, if temperature sensor is only arranged at one or several electrode, away from the heat mistake of the cell generation of temperature sensor
Just can be detected in the case of control the most below: i.e. have the substantial amounts of heat that be enough to arrive at temperature sensor to come out.
But when the temperature sensor away from fault cell detects variations in temperature, now the cell of fault can energy loss
Bad, feed through to periphery cell, it is possible to defined irremediable loss.Because in fail battery heat
Under heat effect out of control, the cell adjacent with hot stall battery has met or exceeded and has caused it to cause the external world of thermal runaway
Temperature conditions, i.e. thermal runaway chain reaction has been formed, in some instances it may even be possible to cause the swiftest and the most violent fire.Existing known system is led to
Cross and dispose as far as possible many temperature sensors to solve these problems, but this can cause system cost prohibitively expensive, installs more
Complexity, and due to the most numerous and diverse wire harness, this reliability reducing again set of cells and safety.
Two is that the smog by not contacting with battery core is or/and temperature sensor detects thermal runaway.Big in sensor values
When certain threshold value, start extinguishing device, or judge that the time interval that thermal runaway is burnt occurs by certain algorithm.Its shortcoming exists
In can not accurately judge the later stage of thermal runaway, i.e. can not detect that thermal runaway causes the probability that burning occurs, can not
Precognition causes the exact time of burning, thus can not provide foundation accurately for the injection of extinguishing chemical.
In sum, the detection of existing battery thermal runaway is mainly accomplished by: utilize temperature, monomer voltage to change
Or/and Smoke Sensor detection, determine warning level by setting threshold value or Algorithm Analysis and start cooling or extinguishing device.Its
Shortcoming: 1, can only judge that thermal runaway causes the approximate time scope of burning by data analysis, it is impossible to determine the standard that naked light occurs
In the really moment, miss the best opportunity starting cooling/extinguishing device；If 2 select to dispose in advance to strive for opportunity, then may be used
Being formed and process by mistake, as mistake starts fire plant, cause whole battery case impaired, making whole battery case because starting fire extinguishing dress
Put and need to change disposal.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, it is provided that a kind of battery thermal runaway inspection that can confirm that naked light time of origin
Examining system.
The technical scheme is that a kind of battery thermal runaway detecting system, including intelligence
Instrument, background monitoring center and be arranged at the thermal runaway detector within battery case, it is characterised in that described thermal runaway detector
Including data acquisition unit and master control set；
Described data acquisition unit is for gathering the current thermal runaway parameter of each detection node within battery case and passing
Give described master control set；Described data acquisition unit includes smokescope sensor, gas concentration sensor, temperature sensor
And flame sensor；
Described flame sensor occurs the exact time of naked light in detecting battery case, for the suppression hands of later stage thermal runaway
Section offer action foundation；
Described master control set includes core cpu processing module, communication transmission module, execution device control module；
Described core cpu processing module, for receiving the current thermal runaway parameter of data acquisition unit transmission, and to described
Current thermal runaway parameter is analyzed processing to judge whether thermal runaway and monitoring thermal runaway process occur.
Described master control set is additionally operable to when described core cpu processing module judges that thermal runaway occurs in current region, to
Background monitoring center sends thermal runaway warning message.
The invention has the beneficial effects as follows: in thermal runaways such as the detection temperature value of battery, gas concentration value and smokescope values
On the basis of parameter information, merge flame sensor detection flame optical information, be conducive to accurately judging the developmental stage of thermal runaway,
Particularly thermal runaway later stage, i.e. detection thermal runaway cause the exact time of burning, and the suppression means for later stage thermal runaway carry
For action foundation, improve the accuracy rate of thermal runaway detection.Neither miss an opportunity because of a delay, do not cause because of starting extinguishing device too early
Loss.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described communication transmission module is Zigbee wireless transport module, GPRS (General Packet Radio
Service) communication module, CAN (Controller Area Network) interface module or internetwork interface module；
Communication transmission module is used for transmitting own health status, thermal runaway information, action message, and is used for receiving outside life
Order；
Above-mentioned further scheme is used to provide the benefit that, it is simple to the thermal runaway signal in battery case to be transferred to automobile whole
Vehicle controller VCU (Vehicle Control Unit) or battery management system BMS (Battery Management
System)。
Further, described execution device control module, it is used for receiving core cpu processing module signal, and to action executing
Device sends voltage, electric current and/or frequency control signal, performs device for starting operation.
Use above-mentioned further scheme to provide the benefit that, give for timely and perform device transmission enabling signal.
Further, described action executing device, including extinguishing device and/or chiller；
Described extinguishing device is for receiving the process signal that described master control set sends, and starts fire extinguishing dress according to signal is suitable
Put；
Described chiller, for receiving the process signal that described master control set sends, is used for controlling battery ambient temperature.
Use above-mentioned further scheme to provide the benefit that, corresponding treatment measures can be taked by different advanced warning grades.
Further, described background monitoring center includes computer supervisory control system, vehicle complete vehicle controller VCU and battery management
System BMS；The duty of master control set, alarm signal, for receiving the signal of master control set, are detected in described background monitoring center
Number and actuating signal, for described intelligence instrument is sent status information and alarm signal；Described intelligence instrument is used for receiving master
The information of control device or the signal at background monitoring center, send the alarm signal of sound and/or light；
Above-mentioned further scheme is used to provide the benefit that, it is simple to form the battery management system of car load.
The invention also discloses a kind of battery thermal runaway detection method, including battery thermal runaway as above detection be
System, detecting step is as follows:
(1), data acquisition unit by Real-time Collection to each detection node current thermal runaway parameter be transferred to CPU core
Heart processing module；Described parameter includes temperature value, gas concentration value, smokescope value and flame parameters；And carry out as follows simultaneously
(2nd) and (3rd) step:
(2), judge that whether flame value is more than or equal to flame threshold set in advance；It is to perform (6th) step, otherwise circulate
Perform (1st) step；
(3), temperature value, gas concentration value and smokescope value parameter are carried out at data filtering by core cpu processing module
Reason, extracts eigenvalue；
(4), whether judging characteristic value is more than or equal to respective threshold set in advance；It is to perform (5th) step, otherwise circulate
Perform (1st) step；
, when a threshold is exceeded, then determine whether such environmental effects (5)；It is to perform (6th) step；If this parameter
It is that such environmental effects then circulates execution (1st) step；
(6), by temperature value, smokescope value, gas concentration value eigenvalue or/and flame parameters integrated treatment, determine
Warning level: when warning level reaches to need to provide when needing of early warning signal, provide early warning signal, and circulate execution (1st)
Step, takes cooling measure simultaneously；If warning level reaches to start the needs of extinguishing device, start while providing early warning signal and go out
Fire device fire extinguishing, and circulate execution (1st) step, take cooling measure simultaneously.
Further, described (6th) step by temperature value, smokescope value, gas concentration value eigenvalue or/and flame parameters
Integrated treatment, processes step as follows:
(1) according to detecting that each current thermal runaway parameter is set up temperature, smokescope and gas concentration and must be become in time
Change curve；
(2) a time period Δ t conduct is determined when described temperature, smokescope and gas concentration all occur and increasing rapidly
High-risk early warning section；
(3) in above-mentioned high-risk early warning section, if be detected that naked light occur in flame sensor data, fire extinguishing dress is started the most immediately
Put；If flames of anger signal, show the high-risk warning of relevant parameter.
Use this method to provide the benefit that, can estimate that the signal of flame detector prepares to determine naked light time of origin,
State of affairs size can be judged in conjunction with other thermal runaway parameter again, thus take Disposal Measures more accurately, reduce wrong report to greatest extent,
Reduce loss.
Accompanying drawing explanation
Fig. 1 is a kind of battery thermal runaway detecting system structural representation of the present invention；
A kind of battery thermal runaway detection method FB(flow block) of Fig. 2 present invention；
Fig. 3 is the curve synoptic diagram of early warning system of the present invention；
Fig. 4～Fig. 8 is thermal runaway detector of the present invention installation position structural representation in different battery case combinations；
In Fig. 1 to Fig. 8,1, thermal runaway detector；11, data acquisition unit；12, master control set；2, action executing dress
Put；3, intelligence instrument；4, background monitoring center；5, battery management system；19, wireless；20, battery case.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
Non-for limiting the scope of the present invention.
As shown in Fig. 1 to Fig. 3, a kind of battery thermal runaway detecting system, including intelligence instrument 3, background monitoring center 4 and set
Being placed in the thermal runaway detector 1 within battery case 20, described thermal runaway detector 1 includes data acquisition unit 11 and master control set
12；
Described data acquisition unit 11 is for gathering the current thermal runaway parameter of each detection node within battery case 20
And send described master control set 12 to；Described data acquisition unit 11 includes smokescope sensor, has sensitive nanoparticle
The gas sensor of structure, temperature sensor and flame sensor；
Described flame sensor occurs the exact time of naked light in detecting battery case, for the suppression hands of later stage thermal runaway
Section offer action foundation；
Described master control set 11 includes core cpu processing module 121, communication transmission module 122, performs device control module
123；
Described core cpu processing module 121, for receiving the current thermal runaway parameter of data acquisition unit 11 transmission, and
It is analyzed described current thermal runaway parameter processing to judge whether thermal runaway and monitoring thermal runaway process occur.
Described master control set 12 is additionally operable to when described core cpu processing module 121 judges that thermal runaway occurs in current region
Time, send thermal runaway warning message to backstage Surveillance center 5.
Described communication transmission module 121 be Zigbee wireless transport module, GPRS communication module, CAN interface module or because of
Special network interface module；Communication transmission module 121 is used for transmitting own health status, thermal runaway information, action message, and is used for connecing
Receive external command；Described execution device control module 123, is used for receiving core cpu processing module 121 signal, and to
Action executing device 2 sends voltage, electric current and/or frequency control signal, performs device 2 for starting operation.
Described action executing device 2, including extinguishing device and/or chiller；
Described extinguishing device is for receiving the process signal that described master control set sends, and starts fire extinguishing dress according to signal is suitable
Put；
Described chiller, for receiving the process signal that described master control set sends, is used for controlling battery ambient temperature.
Described thermal runaway detector also has a road interlocking equipment on and off switch.When detecting battery thermal runaway and occurring,
Can start this on and off switch, start linkage, such as battery thermal management system, to lower the temperature to battery.
Described background monitoring center 5 includes computer supervisory control system, vehicle complete vehicle controller VCU and battery management system
BMS；The duty of master control set 12, alarm signal, for receiving the signal of master control set 12, are detected in described background monitoring center 5
Number and actuating signal, for described intelligence instrument 3 is sent status information and alarm signal；Described intelligence instrument 3 is used for receiving
The information of master control set 12 or the signal at background monitoring center 5, send the alarm signal of sound and/or light；
As Figure 4-8, for thermal runaway detector 1 of the present invention installation position structural representation in different battery case 20 combinations
Figure；
Fig. 4 is the situation of a battery case, and described thermal runaway detector is arranged in battery case 20, and passes through intelligence instrument
Display detection state；
Fig. 5 is the situation of two or more battery case, is respectively provided with thermal runaway detector 1, and focuses on intelligence in battery case
Instrument 3 processes；
Fig. 6 is another way, thermal runaway detector and battery management system is arranged in battery case 20, thermal runaway
Detector transmits signal by battery management system 5 to intelligence instrument；
Fig. 7 is to be respectively provided with thermal runaway detector and battery management system in multiple battery case, and focuses on intelligence instrument
Situation about processing；
Fig. 8 is to be respectively provided with thermal runaway detector in multiple battery case, and by the communication transfer in thermal runaway detector
Detection parameter is transferred to the situation of battery management system and intelligence instrument by module with zigbee communication mode 19.
The invention also discloses a kind of battery thermal runaway detection method, including battery thermal runaway as above detection be
System, detecting step is as follows:
(1), data acquisition unit 11 by Real-time Collection to each detection node current thermal runaway parameter be transferred to CPU
Core processing module 121；Described parameter includes temperature value, gas concentration value, smokescope value and flame parameters；And carry out simultaneously
Following (2nd) and (3rd) step:
(2), judge that whether flame value is more than or equal to flame threshold set in advance；It is to perform (6th) step, otherwise circulate
Perform (1st) step；
(3), core cpu processing module 121 carries out data filtering process, extraction feature to temperature, gas and smog parameter
Value；
(4), whether judging characteristic value is more than or equal to respective threshold set in advance；It is to perform (5th) step, otherwise circulate
Perform (1st) step；
, when a threshold is exceeded, then determine whether such environmental effects (5)；It is to perform (6th) step；If this parameter
It is that such environmental effects then circulates execution (1st) step；
(6), by temperature value, smokescope value, gas concentration value eigenvalue or/and flame parameters integrated treatment, determine
Warning level: when warning level reaches to need to provide when needing of early warning signal, provide early warning signal, and circulate execution (1st)
Step, takes cooling measure simultaneously；If warning level reaches to start the needs of extinguishing device, start while providing early warning signal and go out
Fire device fire extinguishing, and circulate execution (1st) step, take cooling measure simultaneously.
Described (6th) step by temperature value, smokescope value, gas concentration value eigenvalue or/and flame parameters General Office
Reason, processes step as follows:
(1) according to detecting that each current thermal runaway parameter is set up temperature, smokescope and gas concentration and must be become in time
Change curve；
(2) a time period Δ t conduct is determined when described temperature, smokescope and gas concentration all occur and increasing rapidly
High-risk early warning section；
(3) in above-mentioned high-risk early warning section, if be detected that naked light occur in flame sensor data, fire extinguishing dress is started the most immediately
Put；If flames of anger signal, show the high-risk warning of relevant parameter.
Below each step is further detailed:
In above-mentioned (1st) step, it is arranged in the thermal runaway detector of battery case or battery bag each detection node neighbouring
Data acquisition unit Real-time Collection each detection node current thermal runaway parameter, such as current temperature value, current gas is dense
The parameters such as angle value, current smokescope value and current flare up fire, wherein, the gas of detection is mainly C0, also include O2,
The gases such as C02, C2H2, CH4.It is dense why the present invention detects the current temperature value of battery, current gas concentration value, current smog
Angle value and flame information, be primarily due to these parameters and can characterize the thermal runaway situation of battery.When the temperature of battery is too high
Or when gas concentration is too high or smokescope is too high, likely there is thermal runaway in battery.When the spectrum in battery case and frequency
When rate value is in the peculiar frequency band range of flame light, illustrate that battery thermal runaway has caused burning.
Data acquisition unit acquire near battery each detection current temperature value of node, current gas concentration value,
After current smokescope value and flame information, the core cpu processing module being transmitted in master control set, by core cpu
It is analyzed processing by processing module.
The spectrum corresponding according to flame light and frequency range detect.If there being naked light to occur in current environment, flame passes
Sensor will detect that and be uploaded to core cpu processing module.
In above-mentioned (2nd) step, the number that core cpu processing module collects according to each detection node flame sensor
According to, it may be judged whether there is naked light to occur, if there being naked light to occur, performing (6th) step, otherwise circulation execution (1st) step；
In above-mentioned (3rd) step, core cpu processing module each detection current temperature value of node, cigarette to receiving
Mistiness angle value, gas concentration value carry out data filtering process, extract the eigenvalue of this sampled data；
In above-mentioned (4th) step, the eigenvalue of extraction is compared with corresponding predetermined threshold value, if described eigenvalue surpasses
Go out predetermined threshold value, then perform (5th) step；If described eigenvalue is without departing from predetermined threshold value, then circulation execution (1st) step；
Even eigenvalue is beyond corresponding predetermined threshold value, then show that battery may have occurred thermal runaway, and judgement is the most again
No caused by such environmental effects.Described environmental factors such as vehicle is in specific hot environment, or travels in the region of smog again
Etc..
If it addition, N number of current temperature value of continuous detecting all exceedes temperature threshold, then judge that thermal runaway occurs in battery can
Energy property is very big, performs (6th) step, determines the exact time that naked light occurs simultaneously, and starting operation performs device to thermal runaway region
Carrying out thermal runaway control process, wherein, the value of usual N is 2～20, corresponding a period of time, say, that within a period of time,
The temperature value of the battery of detection all exceedes high temperature threshold value, then it represents that thermal runaway likely occurs in battery pole, by current spectrum
Analyse whether that with frequency signal occurring thermal runaway and starting operation to perform device carries out the Best Times of thermal runaway further.
In above-mentioned (5th) step, determine whether such environmental effects, if such environmental effects, then circulation execution the
(1) step；If not such environmental effects, then perform (6th) step；
Concrete, utilize the feature extraction value of current all nodes, set up horizontal real time data queue；If in real-time queue
There are one or more data without departing from described predetermined threshold value, then judge that current local data affects as non-ambient factor；If
Laterally real time data queuing data is all beyond described predetermined threshold value, then be judged to such environmental effects；Utilize compound Trend Algorithm
Carry out the Trend judgement of described eigenvalue, if the most each eigenvalue is ascendant trend change, be then judged to non-ambient
Factor affects；If interlude to rear is downward trend change, it is determined that for such environmental effects.
It addition, this method sets the other threshold value of warning of predetermined magnitude respectively to temperature, gas concentration and smokescope, will
The eigenvalue extracted compares, when exceeding the threshold value of warning of corresponding level and through step S4 with the threshold value of warning of corresponding level
When judging not for such environmental effects, send early warning respectively by corresponding rank and starting operation performs device instruction.More enter
Saying of one step, corresponding according to warning level corresponding to the current temperature value of current detection node, current gas concentration value respectively
Warning level and the warning level that currently smokescope value is corresponding, sum up the warning level that current detection node is corresponding, hold
Row (6th) step.
In above-mentioned (6th) step, warning level that above-mentioned analysis is drawn compare with the testing result of flame sensor,
Eliminate false alarm, report to the police by corresponding warning level and determine that starting operation performs the Best Times of device, thermal runaway region is entered
Row thermal runaway control processes.
Determine that the Best Times starting execution device judges that principle is as follows:
As it is shown on figure 3, represent temperature, smokescope and CO concentration in time change curve:
Wherein, 0-t1 section is parameters index normal time section, and system does not warn and do not reports to the police；
T1-t2 section is temperature, gas, smog value appearance exception, it is possible to battery has occurred thermal runaway time period, Qi Zhong
T2 point neighbouring (as in Fig. 3, Δ t is interval) is high-risk early warning section, i.e. extracts eigenvalue by temperature, gas, smoke data, passes through
Analyze and judge it is the time period being likely to occur naked light；
Take how Disposal Measures is then difficult to clearly define according to temperature, gas, smoke data in this time period, be also power
Weighing apparatus is disposed consequence and is difficult to the time period of resolution.At this moment need flame sensor to provide signal, catch time point the most accurately, resolutely
Dispose.
Specific reference to table 1；
Table 1 eigenvalue, flare up fire and result of determination mapping table
In table 1, on smog, gas, temperature profile value hurdle, " 1 " represents and comes into above-mentioned high-risk early warning section, and " 0 " is at height
Before the early warning section of position；
On flare up fire hurdle, " 1 " represents and flare up fire, and " 0 " represents without flare up fire；
On final result of determination hurdle, " 1 " represents and performs device according to corresponding warning level starting operation, and " 0 " represents and do not opens
Dynamic execution device, but early warning can be sent.
If there is thermal runaway (being " 1 ") in the Eigenvalues analysis battery extracted by data such as smog, temperature, gases, and fiery
Flame sensor is not detected by naked light (being " 0 "), then be judged to that not starting operation performs device (being " 0 "), it is to avoid smog etc.
The false alarm that data analysis mistake causes；
If the Eigenvalues analysis battery status extracted by the data such as smog, temperature is normal, flame sensor detects flame
Optical signal, it is determined that perform device for not starting operation, to get rid of due to interference factors such as heat radiation, electromagnetic interference, mechanical vibration
The flame sensor spurious alarm caused；Because always there being the isoparametric cumulative change of temperature before naked light occurs, the most necessarily accompany
Along with these abnormal parameters.
If thermal runaway occurs in the Eigenvalues analysis battery extracted by the data such as smog, temperature, and flame sensor detects
Naked light signal, then perform device by corresponding warning level starting operation, by flame detecting data judge that naked light occurs accurate time
Carving, starting operation performs device and processes thermal runaway.
When " 1 " occurs in any of the above described parameter attribute value, system will provide abnormal prompt signal.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (7)
1. a battery thermal runaway detecting system, including intelligence instrument, background monitoring center and be arranged at the heat within battery case
Detector out of control, it is characterised in that described thermal runaway detector includes data acquisition unit and master control set；
Described data acquisition unit is for gathering the current thermal runaway parameter of each detection node within battery case and sending to
Described master control set；Described data acquisition unit include smokescope sensor, gas concentration sensor, temperature sensor and
Flame sensor；
Described flame sensor occurs the exact time of naked light in detecting battery case, and the suppression means for later stage thermal runaway carry
For action foundation；
Described master control set includes core cpu processing module, communication transmission module, execution device control module；
Described core cpu processing module, for receive data acquisition unit transmission current thermal runaway parameter, and to described currently
Thermal runaway parameter is analyzed processing to judge whether thermal runaway and monitoring thermal runaway process occur.
Battery thermal runaway detecting system the most according to claim 1, it is characterised in that described communication transmission module is
Zigbee wireless transport module, GPRS communication module, CAN interface module or internetwork interface module.
Battery thermal runaway detecting system the most according to claim 1, it is characterised in that described execution device control module,
For receiving core cpu processing module signal, and send voltage, electric current and/or frequency control signal to action executing device, use
Device is performed in starting operation.
Battery thermal runaway detecting system the most according to claim 3, it is characterised in that described action executing device, including
Extinguishing device and/or chiller；
Described extinguishing device is for receiving the process signal that described master control set sends, and starts extinguishing device according to signal is suitable；
Described chiller, for receiving the process signal that described master control set sends, is used for controlling battery ambient temperature.
Battery thermal runaway detecting system the most according to claim 1, it is characterised in that described background monitoring center includes meter
Calculate machine monitoring system, vehicle complete vehicle controller VCU and battery management system BMS；Described background monitoring center is used for receiving master control
The signal of device, the detection duty of master control set, alarm signal and actuating signal, for sending shape to described intelligence instrument
State information and alarm signal；Described intelligence instrument, for receiving information or the signal at background monitoring center of master control set, sends
Sound and/or the alarm signal of light.
6. a battery thermal runaway detection method, detects system including the battery thermal runaway as described in any one of Claims 1 to 5
System, detecting step is as follows:
(1), data acquisition unit by Real-time Collection to each detection node current thermal runaway parameter be transferred at core cpu
Reason module；Described parameter includes temperature value, gas concentration value, smokescope value and flame parameters；And carry out following (2nd) simultaneously
With (3rd) step:
(2), judge that whether flame value is more than or equal to flame threshold set in advance；It is to perform (6th) step, otherwise circulate execution
(1st) step；
(3), core cpu processing module temperature value, gas concentration value and smokescope value parameter are carried out data filtering process, carry
Take eigenvalue；
(4), whether judging characteristic value is more than or equal to respective threshold set in advance；It is to perform (5th) step, otherwise circulate execution
(1st) step；
, when a threshold is exceeded, then determine whether such environmental effects (5)；It is to perform (6th) step；If this parameter is ring
Border factor impact then circulation execution (1st) step；
(6), by temperature value, smokescope value, gas concentration value eigenvalue or/and flame parameters integrated treatment, determine early warning
Rank: when warning level reaches to need to provide when needing of early warning signal, provide early warning signal, and circulate execution (1st) step, with
Time take cooling measure；If warning level reaches to start the needs of extinguishing device, while providing early warning signal, start fire extinguishing dress
Put fire extinguishing, and circulate execution (1st) step, take cooling measure simultaneously.
Battery thermal runaway detecting system the most according to claim 6, it is characterised in that described (6th) step is by temperature value, cigarette
Mistiness angle value, gas concentration value eigenvalue or/and flame parameters integrated treatment, process step as follows:
(1) according to detecting that each current thermal runaway parameter is set up temperature, smokescope and gas concentration and must be changed song in time
Line；
(2) determine when described temperature, smokescope and gas concentration all occur and increasing rapidly that a time period Δ t is as high-risk
Early warning section；
(3) in above-mentioned high-risk early warning section, if be detected that naked light occur in flame sensor data, extinguishing device is started the most immediately；
If flames of anger signal, show the high-risk warning of relevant parameter.
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