CN205674885U - A kind of battery detecting management system of electric automobile - Google Patents
A kind of battery detecting management system of electric automobile Download PDFInfo
- Publication number
- CN205674885U CN205674885U CN201620547739.9U CN201620547739U CN205674885U CN 205674885 U CN205674885 U CN 205674885U CN 201620547739 U CN201620547739 U CN 201620547739U CN 205674885 U CN205674885 U CN 205674885U
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- battery
- thermal runaway
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- management system
- detection unit
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Abstract
The utility model relates to electric automobile safe operation technical field, particularly relate to the battery detecting management system of a kind of electric automobile, it includes whole-control system and at least one battery case, described battery case is provided with many Battery packs, it is characterized in that, being additionally provided with battery detection unit and action executing device in described battery case, described battery detection unit is electrically connected by car load CAN with described whole-control system.Described battery detection unit includes data acquisition module, core cpu processing module, communication transmission module and performs device control module；Described data acquisition module includes the harvester of battery modules temperature, cell voltage electric current and battery modules ambient parameter.Provide the benefit that, on the basis of existing battery management system BMS layouts temperature sensing, the thermal runaway parameters such as the temperature value of detection battery ambient, gas concentration value, smokescope value and flame optical information, are conducive to accurately judging the developing stage of thermal runaway, improve the accuracy rate of thermal runaway detection.
Description
Technical field
The utility model relates to electric automobile safe operation technical field, particularly relates to the battery detecting of a kind of electric automobile
Management system.
Background technology
Electric automobile is promoted as a kind of environmentally friendly vehicle, as battery pack reliable and secure of electric automobile new forms of energy
It is then related to the success or failure of Development of Electric Vehicles.The safety issue of battery is concerning the person and property safety, electronic particularly at present
Automobile is as the main carriers of battery, and once battery generation is on fire or blast easily causes casualties.Due to lithium battery capacity
Little, a lithium battery motor-car can use hundreds of even thousands of pieces of lithium batteries, and it is more active to add lithium ion, even if static
It is also possible to occur thermal runaway in the state of depositing, in security, be therefore difficult to control.The lifting of the cell safety of electric motor car
It is a process, need at the materials such as electrode, barrier film, electrolyte and the design aspect such as resist technology, protection circuit in addition complete
Kind, but from lithium battery itself solution or inadequate, in application how the monitor and detection of numerous battery and management be still one very
Important problem.But at present, the method for raising electric automobile security is in addition to strengthening protection to battery pack, is difficult to there is essence
Property technology occur.
At present, the unique tie between vehicle-mounted lithium-ion-power cell group and user be battery management system (BMS,
Battery Management System), the Main Function of BMS is that the estimation state-of-charge of power battery pack, cell are equal
The safety managements such as weighing apparatus discharge and recharge.But existing battery management system (BMS) is not enough to the management of thermal runaway, it is impossible to carry out battery pack
Comprehensive thermal runaway detection.The battery detecting management system of i.e. existing electric automobile is deposited not enough both ways:
One is system row difference in terms of the unified management of battery pack；Two is ratio in terms of the thermal runaway state-detection to battery
Slower or state confirmation is fuzzyyer:
In terms of to battery thermal runaway monitoring, BMS uses the method for temperature sensing of layouting.And automobile-used Li-ion batteries piles
Interior cell quantity is many, relies on the method for detection of layouting can not realize that comprehensive thermal runaway detects.If do not arranged
There is thermal runaway in the position of temperature sensor, BMS cannot find, so rate of failing to report is very high.It is attached to outside battery pack in addition, work as
When the temperature sensor on surface detects battery " temperature significantly raises ", often too late, now thermal runaway has occurred and that simultaneously
And it is uncontrollable.
In existing battery management system, typically in the following manner is realized that thermal runaway detects: by battery compartment electrode and
Contact between temperature sensor detects, and in a battery bag of tens to hundreds of Zhi Danti battery core compositions, typically arranges
Less than 8 temperature sensors.When its shortcoming is even only have a cell generation thermal runaway, it is also necessary to temperature is passed
The battery location that sensor is arranged in all cells could detect, otherwise, if temperature sensor only arranges the very first time
At one or several electrodes, keep off in the case of the thermal runaway of the cell generation of temperature sensor is only below
Can be detected: i.e. have the substantial amounts of heat that be enough to arrive at temperature sensor to come out.Now, even if detection confirmation has heat
Generation out of control, but have also been formed irremediable security threat, because under heat so, adjacent with thermal runaway battery
Cell reached or exceed cause its cause thermal runaway ambient temperature condition, thermal runaway chain reaction has been formed,
It is greatly likely to result in extremely swift and violent fire.Existing known system solves these by disposing as far as possible many temperature sensors
Problem, but this can cause system cost prohibitively expensive, installs more complicated, and due to extremely numerous and diverse wire harness, this reduces again
The reliability of battery pack and security.
Utility model content
The deficiency that the utility model exists for above-mentioned prior art, provides and a kind of detects accurate electric automobile
Battery detecting management system.
The technical scheme that the utility model solves above-mentioned technical problem is as follows: the battery detecting management of a kind of electric automobile is
System, including whole-control system VCU (Vehicle Control Unit) and at least one battery case, sets in described battery case
Have many Battery packs, it is characterised in that described battery case is additionally provided with battery detection unit BMU (Battery Monitoring
Unit) and action executing device, described battery detection unit BMU and described whole-control system VCU are by car load CAN electricity
Connect.Described battery detection unit BMU is also connected with described action executing device to export enabling signal.
The beneficial effects of the utility model are: by described battery detection unit BMU, battery status information is transferred to institute
State whole-control system VCU, make battery status and vehicle out of Memory such as intelligence instrument, Throttle Opening Control, signal light control etc.
Integrative management, it is simple to human pilot is control operation.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described battery case is provided with multiple, is equipped with battery detection unit BMU and action in each described battery case
Perform device, also include battery management unit BCU (Battery Control Unit) and internal CAN, each described electricity
Pond detector unit BMU is electrically connected with described battery management unit BCU by described internal CAN；
Described battery management unit BCU, for receiving the present battery thermal runaway parameter that battery detection unit BMU uploads,
According to parameters comprehensive descision current thermal runaway state, send early warning signal, if reaching to start extinguishing device rank to battery
Detector unit BMU is assigned and is manually booted the instruction of action executing device.
Use above-mentioned further scheme to provide the benefit that, for the relatively large vehicle of ratio, many Battery pack groups can be configured,
Such as electronic bus, now set up the information to each battery case for the battery management unit BCU and collect management system can be made to heat
Runaway condition reaction is faster, and management is more concentrated.
Further, described battery detection unit includes data acquisition module, core cpu processing module, communication transmission module
And execution device control module；
Described data acquisition module is for gathering the current thermal runaway parameter of each detection node within battery case and passing
Give described core cpu processing module；Described data acquisition module includes smokescope sensor, gas concentration sensor, temperature
Degree sensor and flame sensor；
The gas of detection is mainly C0, also includes the gases such as O2, C02, C2H2, CH4.
There is the exact time of naked light in described flame sensor in being used for detecting battery case, be the suppression hand of later stage thermal runaway
Section offer action foundation；
Described core cpu processing module, for receiving the current thermal runaway parameter of data acquisition module transmission, and to described
Current thermal runaway parameter is analyzed processing to judge whether thermal runaway and monitoring thermal runaway process occur.
Smokescope that data acquisition module is collected by described core cpu processing module, gas concentration, flame information,
Battery surface and environment temperature, cell voltage carry out data filtering analyzing and processing, get rid of environmental factor, heat through Algorithm Analysis
The false alarm that the disturbing factors such as radiation cause, monitored over time battery thermal runaway state.Determined by fire defector and start fire extinguisher
Best opportunity, it is to avoid thermal runaway chain reaction causes fire.
When described core cpu processing module judges that thermal runaway occurs in current region, to battery management unit BCU or car load
Control system VCU sends thermal runaway warning message, action message and shows.
Described communication module is used for transmitting own health status, thermal runaway information, action message, and be used for receiving BMS or
The order that VCU sends.
Described battery management unit also can communicate with automobile intelligent instrument, when core cpu processing module is judged to work as
When thermal runaway occurs in forefoot area, notify driver by automobile intelligent instrument, send sound and light alarm prompting.
In addition, this battery management system also manually boots action executing apparatus function.When driver notes abnormalities, can
Manually boot action executing device, VCU transmission is manually booted action executing device and instructs and send to core cpu processing module
Perform.
Above-mentioned further scheme is used to provide the benefit that, at temperature value, the Current Voltage of battery of detection battery modules
On the basis of information, merge battery modules ambient parameter (smog, gas, ambient temperature, flame information), be conducive to accurately
Judge the developing stage of thermal runaway, particularly thermal runaway later stage, i.e. detection thermal runaway causes the exact time of burning, after being
The suppression means offer action foundation of phase thermal runaway, improves the accuracy rate of thermal runaway detection.Neither miss an opportunity because of a delay, again not because of mistake
Early start extinguishing device and cause damage.
Further, described communication transmission module is Zigbee wireless transport module, GPRS communication module, CAN interface module
Or internetwork interface module.
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) or battery management unit (BCU).
Further, described execution device control module, 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, perform device transmission enabling signal for giving timely.
Further, described action executing device, including extinguishing device and/or cooling device；
Described extinguishing device is for receiving the process signal that described core cpu processing module sends, and opens according to signal is suitable
Dynamic extinguishing device；
Described cooling device, for receiving the process signal that described core cpu processing module sends, is used for controlling battery ring
Border temperature.
Use above-mentioned further scheme to provide the benefit that, can take to process accordingly to arrange for different advanced warning grades
Execute.
Further, the Intelligent Instrument electrically connecting with described CAN (Controller Area Network) data/address bus is also included
Table.
Use above-mentioned further scheme to provide the benefit that, the duty of on-vehicle battery is shown on intelligence instrument.
Brief description
Fig. 1 is a kind of system architecture schematic diagram of the present utility model；
Fig. 2 is another kind of system architecture schematic diagram of the present utility model；
Fig. 3 is battery detection unit structural representation of the present utility model.
In Fig. 1 to Fig. 3, the 1st, battery detection unit BMU；2nd, device is performed；3rd, battery management unit BCU；4th, car load control
System VCU processed；5th, intelligence instrument；6th, battery case.
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with accompanying drawing, example is served only for explaining this practicality
Novel, it is not intended to limit scope of the present utility model.
As shown in Fig. 1 to Fig. 3, the battery detecting management system of a kind of electric automobile, including whole-control system VCU and
At least one battery case 6, is provided with many Battery packs, is additionally provided with battery detection unit BMU1 in described battery case in described battery case 6
And action executing device 2, described battery detection unit BMU1 is electrically connected by car load CAN with described whole-control system VCU4
Connect.
Described battery detection unit BMU is also connected with described action executing device to export enabling signal.
On how many new-energy automobiles, described battery case 6 is provided with multiple, is equipped with battery inspection in each described battery case 6
Surveying unit B MU1 and action executing device 2, also including battery management unit BCU3 and internal CAN, each described battery is examined
Survey unit B MU1 to be electrically connected with described battery management unit BCU3 by described internal CAN；
Described battery management unit BCU3 is used for receiving the present battery thermal runaway parameter that battery detection unit BMU1 uploads,
According to parameters comprehensive descision current thermal runaway state, send early warning signal, if reaching to start extinguishing device rank to battery
Detector unit BMU1 is assigned and is manually booted the instruction of action executing device.
Described battery detection unit 1 includes data acquisition module, core cpu processing module, communication transmission module and execution
Device control module；
Described data acquisition module 11 is for gathering the current thermal runaway parameter of each detection node within battery case simultaneously
Send described core cpu processing module 12 to；
Described data acquisition module 11 includes battery modules temperature collecting device, cell voltage current collecting device and electricity
Pond module ambient parameter harvester；
Here battery modules temperature collecting device refers to the temperature sensor being arranged in battery modules, generally at one
Being provided with multiple battery modules in battery case, if each battery modules is then made up of dry plate cell, this temperature sensor is just
It is arranged in battery modules；Described cell voltage current collecting device then come from existing battery management system to cell voltage
Detecting element.
Described battery modules ambient parameter harvester includes that smokescope sensor, gas concentration sensor, temperature pass
Sensor and flame sensor；
Described gas concentration the gas of acquisition testing can be mainly C0, also includes the gases such as O2, C02, C2H2, CH4.
There is the exact time of naked light in described flame sensor in being used for detecting battery case, be the suppression hand of later stage thermal runaway
Section offer action foundation；
Described core cpu processing module 12, is used for receiving the current thermal runaway parameter of data acquisition module 11 transmission, and right
Described current thermal runaway parameter is analyzed processing to judge whether thermal runaway and monitoring thermal runaway process occur.
Smokescope that data acquisition module 11 is collected by described core cpu processing module 12, gas concentration, flame letter
Breath, battery surface and environment temperature, cell voltage current information carry out data filtering analyzing and processing, get rid of ring through Algorithm Analysis
The false alarm that the disturbing factors such as border factor, heat radiation cause, monitored over time battery thermal runaway state.Determined by fire defector and open
The best opportunity of dynamic fire extinguisher, it is to avoid thermal runaway chain reaction causes fire.
When described core cpu processing module 11 judges that thermal runaway occurs in current region, to battery management unit BCU or whole
Vehicle control VCU sends thermal runaway warning message, action message and shows.
Described communication module 13 is used for transmitting own health status, thermal runaway information, action message, and is used for receiving BMS
Or the order that VCU sends.
Described battery management unit 1 also can communicate with automobile intelligent instrument, when core cpu processing module is judged to work as
When thermal runaway occurs in forefoot area, notify driver by automobile intelligent instrument, send sound and light alarm prompting.
In addition, this battery management system also manually boots action executing apparatus function.When driver notes abnormalities, can
Manually boot action executing device, VCU transmission is manually booted action executing device and instructs and send to core cpu processing module
Perform.
Described communication transmission module is Zigbee wireless transport module, GPRS communication module, CAN interface module or internet
Interface module.
Described execution device control module, is used for receiving core cpu processing module signal, and sends to action executing device
Voltage, electric current and/or frequency control signal, perform device for starting operation.
Described action executing device 2, including extinguishing device and/or cooling device；
Described extinguishing device is for receiving the process signal that described core cpu processing module sends, and opens according to signal is suitable
Dynamic extinguishing device；
Described cooling device, for receiving the process signal that described core cpu processing module sends, is used for controlling battery ring
Border temperature.
Also include the intelligence instrument electrically connecting with described CAN (Controller Area Network) data/address bus.
The system that the utility model provides also can be communicated by CAN network with intelligence instrument, for as described CPU
When core processing module 12 judges that thermal runaway occurs in current region, carry out sound and light alarm prompting, notify driver in time.
The system that the utility model provides can be strengthened detecting battery thermal runaway, specifically includes following steps:
(1). the change of detection cell voltage；
(2). battery module temperature change in detection battery bag；
(3). the exporting change of detection Smoke Sensor；
(4). changed by control cell voltage change, module temperature, the parameter that also Smoke Sensor provides, analyze early
Phase thermal runaway state；
(5). according to above-mentioned state analysis, the threshold value evaluating thermal runaway process is set, in order to foundation as a comparison.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in guarantor of the present utility model
Within the scope of protecting.
Claims (7)
1. a battery detecting management system for electric automobile, including whole-control system VCU and at least one battery case, institute
State and battery case is provided with many Battery packs, it is characterised in that described battery case is additionally provided with battery detection unit BMU and action executing
Device, described battery detection unit BMU is electrically connected by car load CAN with described whole-control system VCU；Described battery is examined
Survey unit B MU to be also connected with described action executing device to export enabling signal.
2. the battery detecting management system of electric automobile according to claim 1, it is characterised in that described battery case is provided with
Multiple, each described battery case is equipped with battery detection unit BMU and action executing device, also includes battery management unit
BCU and internal CAN, each described battery detection unit BMU is by described internal CAN and described battery management unit
BCU electrically connects；
Described battery management unit BCU, for receiving the present battery thermal runaway parameter that each battery detection unit BMU uploads,
According to parameters comprehensive descision current thermal runaway state, send early warning signal, if reaching to start extinguishing device rank to battery
Detector unit BMU is assigned starting operation and is performed device instruction.
3. the battery detecting management system of electric automobile according to claim 1, it is characterised in that described battery detecting list
Unit includes data acquisition module, core cpu processing module, communication transmission module and performs device control module；
Described data acquisition module is for gathering the current thermal runaway parameter of each detection node within battery case and sending to
Described core cpu processing module；
Described data acquisition module includes battery modules temperature collecting device, cell voltage current collecting device and battery modules
Ambient parameter harvester；
Described battery modules ambient parameter harvester includes smokescope sensor, gas concentration sensor, temperature sensor
And flame sensor；
There is the exact time of naked light in described flame sensor in being used for detecting battery case, be that the suppression means of later stage thermal runaway carry
For action foundation；
Described core cpu processing module, for receive data acquisition module 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.
4. the battery detecting management system of electric automobile according to claim 1, it is characterised in that described communication transfer mould
Block is Zigbee wireless transport module, GPRS communication module, CAN interface module or internetwork interface module.
5. the battery detecting management system of electric automobile according to claim 1, it is characterised in that described execution device control
Molding block, is used for receiving core cpu processing module signal, and sends voltage, electric current and/or FREQUENCY CONTROL to action executing device
Signal, performs device for starting operation.
6. battery detecting management system according to claim 5, it is characterised in that described action executing device, including go out
Fire device and/or cooling device；
Described extinguishing device is for receiving the process signal that described core cpu processing module sends, and fits startup according to signal and go out
Fire device；
Described cooling device, for receiving the process signal that described core cpu processing module sends, is used for controlling battery context temperature
Degree.
7. battery detecting management system according to claim 1, it is characterised in that also include and described CAN data/address bus
The intelligence instrument of electrical connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620547739.9U CN205674885U (en) | 2016-06-07 | 2016-06-07 | A kind of battery detecting management system of electric automobile |
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| CN201620547739.9U CN205674885U (en) | 2016-06-07 | 2016-06-07 | A kind of battery detecting management system of electric automobile |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904992A (en) * | 2016-06-07 | 2016-08-31 | 烟台创为新能源科技有限公司 | Electric vehicle battery monitoring and management system and monitoring method of batteries |
| CN106505268A (en) * | 2016-11-29 | 2017-03-15 | 江苏鸿鹄电子科技有限公司 | A kind of new-energy automobile power battery security system |
| CN107528367A (en) * | 2017-08-31 | 2017-12-29 | 上海爱优威软件开发有限公司 | A kind of charge protection method, charge protection device and charge protection system |
| CN108490367A (en) * | 2018-05-28 | 2018-09-04 | 青岛美凯麟科技股份有限公司 | Power battery automatic checkout system and method, cell safety judgement and method of disposal |
| WO2020019578A1 (en) * | 2018-07-27 | 2020-01-30 | 清华大学 | Battery fire early-warning system and method |
| CN110783650A (en) * | 2019-11-11 | 2020-02-11 | 浙江华云信息科技有限公司 | Energy storage battery box and monitoring module arrangement method thereof |
| CN113022378A (en) * | 2021-03-01 | 2021-06-25 | 中国第一汽车股份有限公司 | Temperature consistency prediction method, temperature consistency prediction device, prediction equipment and storage medium |
-
2016
- 2016-06-07 CN CN201620547739.9U patent/CN205674885U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904992A (en) * | 2016-06-07 | 2016-08-31 | 烟台创为新能源科技有限公司 | Electric vehicle battery monitoring and management system and monitoring method of batteries |
| CN106505268A (en) * | 2016-11-29 | 2017-03-15 | 江苏鸿鹄电子科技有限公司 | A kind of new-energy automobile power battery security system |
| CN106505268B (en) * | 2016-11-29 | 2024-01-09 | 江苏鸿鹄电子科技有限公司 | New energy automobile power battery safety coefficient |
| CN107528367A (en) * | 2017-08-31 | 2017-12-29 | 上海爱优威软件开发有限公司 | A kind of charge protection method, charge protection device and charge protection system |
| CN108490367A (en) * | 2018-05-28 | 2018-09-04 | 青岛美凯麟科技股份有限公司 | Power battery automatic checkout system and method, cell safety judgement and method of disposal |
| WO2020019578A1 (en) * | 2018-07-27 | 2020-01-30 | 清华大学 | Battery fire early-warning system and method |
| CN110783650A (en) * | 2019-11-11 | 2020-02-11 | 浙江华云信息科技有限公司 | Energy storage battery box and monitoring module arrangement method thereof |
| CN113022378A (en) * | 2021-03-01 | 2021-06-25 | 中国第一汽车股份有限公司 | Temperature consistency prediction method, temperature consistency prediction device, prediction equipment and storage medium |
| CN113022378B (en) * | 2021-03-01 | 2023-03-07 | 中国第一汽车股份有限公司 | Temperature consistency prediction method, temperature consistency prediction device, prediction equipment and storage medium |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161109 Effective date of abandoning: 20180824 |