CN106671817A - Detection circuit and battery management system - Google Patents
Detection circuit and battery management system Download PDFInfo
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- CN106671817A CN106671817A CN201710035743.6A CN201710035743A CN106671817A CN 106671817 A CN106671817 A CN 106671817A CN 201710035743 A CN201710035743 A CN 201710035743A CN 106671817 A CN106671817 A CN 106671817A
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- comparison circuit
- signal
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- comparison
- circuit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a detection circuit and a battery management system and relates to the technical field of current detection. The detection circuit comprises a plurality of current sensors and at least one comparison circuit. The current sensors are used for generating induction signals with different amplitudes according to currents passing through single batteries and having different amplitudes. The output ends of any two current sensors are connected with the first input end and the second input end of the comparison circuit correspondingly. When the amplitude of the induction signal input into the first input end of the comparison circuit is identical to that of the induction signal input into the second input end of the comparison circuit, the comparison circuit outputs a first comparison signal. When the amplitude of the induction signal input into the first input end of the comparison circuit is different from that of the induction signal input into the second input end of the comparison circuit, the comparison circuit outputs a second comparison signal. Through the current sensors and the comparison circuit, whether the single batteries are liable to disengage or fail or not can be determined by comparing currents of any two single batteries.
Description
Technical field
The present invention relates to current detection technology field, in particular to a kind of detection circuit and battery management system.
Background technology
With the exhaustion of traditional fossil energy, the exploitation of new forms of energy is widely paid close attention to.And automobile is the master of energy resource consumption
One of product is wanted, the appearance of new-energy automobile can effectively alleviate the problem of lack of energy, so new-energy automobile is by energetically
Development and application.As new-energy automobile power source battery be new-energy automobile important component part, improve battery property
Also the performance of automobile can just be improve.
Because single battery has that output is low, in the applied environment of most of batteries, the application of battery
Mode is all that, to form a battery modules after multiple battery serial or parallel connections, unification externally carries out energy output.For convenience of battery
The assembling of module, typically all passes through the tandem of torrent plate together to improve output work by the negative or positive electrode of multiple battery cells
Rate.
Jing inventor's research finds, in prior art, by the negative or positive electrode of multiple batteries by torrent plate tandem with shape
Into battery modules, the battery modules in use, be present because welding comes off or single battery failure, if should
Problem can not in time be found and be solved, will be greatly reduced the output of battery modules or cause fire incident.
The content of the invention
In view of this, it is an object of the invention to provide detecting circuit, by the setting of current sensor and comparison circuit,
To being contrasted by the electric current of any two battery cell, it can be deduced that battery cell comes off with the presence or absence of welding or fails
Problem.
Another object of the present invention is to provide a kind of battery management system, by setting for current sensor and comparison circuit
Put, to being contrasted by the electric current of any two battery cell, it can be deduced that battery cell come off with the presence or absence of welding or
The problem of failure.
For achieving the above object, the embodiment of the present invention is adopted the following technical scheme that：
One kind detection circuit, for detecting the working condition of battery modules.The battery modules include multiple battery cells,
The detection circuit includes multiple current sensors and at least one comparison circuit, the comparison circuit include first input end and
Second input.
The plurality of current sensor is respectively arranged at each battery cell, and the current sensor is used for basis and passes through
The electric current that the amplitude of the battery cell is different produces the different induced signal of amplitude, and current sensor is defeated described in any two
Go out end to be connected with the first input end and the second input of comparison circuit described at least one respectively.
When the amplitude and the induced signal of the second input of the induced signal of the first input end for being input into the comparison circuit
Amplitude it is identical when, the comparison circuit exports the first comparison signal.
When the amplitude and the induced signal of the second input of the induced signal of the first input end for being input into the comparison circuit
Amplitude it is different when, the comparison circuit exports the second comparison signal.
In the embodiment of the present invention is preferably selected, in above-mentioned detection circuit, the quantity of the current sensor and institute
The quantity for stating battery cell is identical and correspond, and each current sensor is sheathed on respectively each battery cell.
In the embodiment of the present invention is preferably selected, in above-mentioned detection circuit, the adjacent current sensor of any two
Outfan be connected with the first input end and the second input of comparison circuit described at least one respectively.
In the embodiment of the present invention is preferably selected, in above-mentioned detection circuit, the detection circuit is additionally provided with output
Interface, the outfan of the comparison circuit is connected with the output interface.
In the embodiment of the present invention is preferably selected, in above-mentioned detection circuit, when the comparison circuit is multiple, institute
Stating output interface includes many sub- output interfaces, and the quantity of the sub- output interface is identical with the quantity of the comparison circuit and one
One correspondence, the outfan of each comparison circuit is connected respectively with each sub- output interface.
In the embodiment of the present invention is preferably selected, in above-mentioned detection circuit, the comparison circuit be difference channel, institute
Current sensor is stated for Hall current sensor.
On the basis of the above, the embodiment of the present invention additionally provides a kind of battery management system, is applied to automobile.The automobile
Including battery modules and motor, the battery management system includes signal acquisition circuit, controller and the detection circuit, institute
Battery modules and the motor connection are stated, the signal acquisition circuit is connected to the outfan of the detection circuit and the control
Between the input of device.
When the signal acquisition circuit receives first comparison signal, generate the first sampled signal and send to institute
State controller, when the signal acquisition circuit receives second comparison signal, generate the second sampled signal and send to
The controller.
When the controller receives second sampled signal, controlling the motor reduces output to reduce
State the discharge current of battery modules.
In the embodiment of the present invention is preferably selected, in above-mentioned battery management system, the automobile also sets including charging
Standby, the charger is connected with the battery modules.
When the controller receives second sampled signal, controlling the charger reduces output to drop
The charging current of the low battery modules.
In the embodiment of the present invention is preferably selected, in above-mentioned battery management system, the automobile also includes dress of reporting to the police
Put, the alarm device is connected with the controller.
When the controller receives second sampled signal, control the alarm device and send alarm signal.
In the embodiment of the present invention is preferably selected, in above-mentioned battery management system, the battery management system is also wrapped
Terminal server is included, the controller is provided with communication module.
When the controller receives second sampled signal, the controller generates fault message and by described
Communication module is sent to the terminal server.
The present invention provides a kind of detection circuit and battery management system, by the setting of current sensor and comparison circuit,
To being contrasted by the electric current of any two battery cell, it can be deduced that battery cell comes off with the presence or absence of welding or fails
Problem, it is to avoid the security performance of battery modules is affected because persistently using.
Further, when comparison circuit is multiple, by arranging many sub- output interfaces, electricity can effectively be judged
In the module of pond welding come off or Problem of Failure particular location, be conducive to attendant to carry out maintenance process.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Description of the drawings
Fig. 1 is the mounting structure schematic diagram of current sensor provided in an embodiment of the present invention.
Fig. 2 is the circuit theory diagrams of detection circuit provided in an embodiment of the present invention.
Fig. 3 is the circuit theory diagrams of difference channel provided in an embodiment of the present invention.
Fig. 4 is the structured flowchart of battery management system provided in an embodiment of the present invention.
Fig. 5 is another structured flowchart of battery management system provided in an embodiment of the present invention.
Icon：10- battery management systems；20- battery modules；The fixed plates of 22- first；The fixed plates of 24- second；26- substrates；
28- battery cells；100- detects circuit；120- current sensors；140- comparison circuits；The audions of Q1- first；Q2- the two or three
Pole pipe；R1- pull-up resistors；160- output interfaces；200- signal acquisition circuits；300- controllers；320- communication modules；400- is reported
Alarm device；500- terminal servers.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is a part of embodiment of the present invention, rather than the embodiment of whole.The present invention generally described and illustrated in accompanying drawing herein
The component of embodiment can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.In description of the invention
In, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that being or hint relative importance.
Additionally, the term such as term " identical " is not offered as requiring that part is definitely identical, but there may be small difference.
" parallel " is only that the position relationship between finger is more parallel with respect to for " vertical ", is not to represent that the structure must
It is substantially parallel, and can be to be slightly tilted.
As depicted in figs. 1 and 2, a kind of detection circuit 100 is embodiments provided, for detecting battery modules 20
Working condition.The battery modules 20 include the first fixed plate 22, the second fixed plate 24, substrate 26 and multiple battery cells
28, the detection circuit 100 includes current sensor 120, comparison circuit 140 and output interface 160.
Further, in the present embodiment, first fixed plate 22 and second fixed plate 24 are respectively arranged at institute
The two ends of multiple battery cells 28 are stated, so that the plurality of battery cell 28 is fixed on the fixation of first fixed plate 22 and second
Between plate 24.The substrate 26 is arranged between first fixed plate 22 and second fixed plate 24, for being fixedly installed
In the current sensor 120 of the battery cell 28.The current sensor 120 is used for according to by the battery cell
The different electric current of 28 amplitude produces the different induced signal of amplitude.By being analyzed process to the induced signal, can be with
The current conditions of corresponding battery cell 28 are drawn, so as to whether the working condition for judging the battery cell 28 is normal.
Alternatively, the relative position relation of first fixed plate 22, the second fixed plate 24 and substrate 26 can be it is various,
It is unrestricted.In the present embodiment, first fixed plate 22, the second fixed plate 24 and substrate 26 are parallel to each other.
Alternatively, the quantity of the current sensor 120 is unrestricted, both can be one, or multiple.At this
In embodiment, the current sensor 120 is multiple.
Alternatively, the particular number of the current sensor 120 can be it is various, it is unrestricted.In the present embodiment, institute
The particular number for stating current sensor 120 is identical with the particular number of the battery cell 28, so that each described battery list
Body 28 is correspondingly arranged a current sensor 120.
Alternatively, each current sensor 120 can both be arranged at the same side of the substrate 26, it is also possible to be arranged at
The not homonymy of the substrate 26.In the present embodiment, each current sensor 120 is arranged at the same side of the substrate 26.
Alternatively, the concrete shape of the current sensor 120 can be it is various, it is unrestricted.In the present embodiment, institute
Current sensor 120 is stated for circulus.
Alternatively, the shape of the battery cell 28 is unrestricted, both can be prismatic structure, or cylinder
Structure, different according to the structure of the battery cell 28, the structure of the current sensor 120 is different.In the present embodiment, institute
It is cylindrical structure to state battery cell 28, and the current sensor 120 is circular ring.
Alternatively, the current sensor 120 can be with the position relationship of the battery cell 28 it is various, it is unrestricted
System.In the present embodiment, the internal diameter of the current sensor 120 is more than the external diameter of the battery cell 28, so that the electric current
Sensor 120 can be sheathed on the battery cell 28.
Alternatively, the particular type of the current sensor 120 is unrestricted, both can be Hall current sensor,
Can be that other can detect the electromagnetic component of curent change.In the present embodiment, the current sensor 120 is Hall current
Sensor.
Further, in the present embodiment, the comparison circuit 140 includes first input end and the second input.It is described
First input end is connected respectively with second input with the outfan of two current sensors 120, any two institute
State the outfan of current sensor 120 respectively with the first input end and the second input of comparison circuit described at least one 140
Connection.
Alternatively, the quantity of the comparison circuit 140 is unrestricted, according to the quantity of the current sensor 120 not
Together, the quantity of the comparison circuit 140 is different.In the present embodiment, multiple comparison circuits 140 are in line, the ratio
One fewer than the quantity of the current sensor 120 compared with the quantity of circuit 140 so that the adjacent current sensor 120 of any two
Outfan be connected with the first input end and the second input of comparison circuit described at least one 140 respectively.
By above-mentioned design, it is capable of achieving:When the amplitude of the induced signal of the first input end for being input into the comparison circuit 140
When identical with the amplitude of the induced signal of the second input, the comparison circuit 140 exports the first comparison signal.When described in input
When the amplitude of the induced signal of the first input end of comparison circuit 140 is different from the amplitude of the induced signal of the second input, institute
State comparison circuit 140 and export the second comparison signal.
When the comparison circuit 140 exports the first comparison signal, show corresponding first input end and the second input
Induced signal be identical, i.e., corresponding two battery cells 28 are all normal or all abnormal.When the comparison circuit 140 it is defeated
When going out the second comparison signal, the induced signal for showing corresponding first input end and the second input be it is different, i.e., it is corresponding
Have in two battery cells 28 and only one of which has problems.Due to the outfan of the adjacent current sensor 120 of any two
It is connected with the first input end and the second input of comparison circuit described at least one 140 respectively, in conjunction with there may be problem
Battery cell 28 adjacent cell monomer 28 working condition, you can judgement is gone wrong which battery cell that be specifically present in
28。
Alternatively, the physical circuit principle of the comparison circuit 140 can be it is various, it is unrestricted.In the present embodiment,
The comparison circuit 140 is difference channel.
With reference to Fig. 3, the difference channel includes the first audion Q1, the second audion Q2 and pull-up resistor R1.It is described
The base stage of the first audion Q1 is the first input end, grounded emitter, colelctor electrode by the pull-up resistor R1 and power supply
Connection, the base stage of the second audion Q2 is that second input, grounded emitter, colelctor electrode pass through the pull-up resistor
R1 is connected with the power supply.
The colelctor electrode of the first audion Q1 and the voltage difference of the colelctor electrode of the second audion Q2 are gathered as institute
State the output signal of difference channel.When the base voltage of base voltage and the second audion Q2 of the first audion Q1
When identical, first comparison signal (low level) is exported.When the base voltage and the described 2nd 3 of the first audion Q1
When the base voltage of pole pipe Q2 is different, second comparison signal (high level) is exported.
Further, in the present embodiment, the output interface 160 is connected with the outfan of the comparison circuit 140.It is logical
The output interface 160 is crossed, the output signal of the comparison circuit 140 external equipment can be sent to and be processed, analyzed
And show.
Alternatively, the quantity of the output interface 160 is unrestricted, can be entered according to the quantity of the comparison circuit 140
Row is arranged.In the present embodiment, the comparison circuit 140 is multiple, is to ensure that the output signal of each comparison circuit 140 can
To be respectively delivered to the external equipment, the output interface 160 includes many sub- output interfaces.The number of the sub- output interface
Amount is identical with the quantity of the comparison circuit 140 and corresponds, and the outfan of each comparison circuit 140 is described with each respectively
Sub- output interface connection.
With reference to Fig. 4, the embodiment of the present invention also provides a kind of battery management system 10, is applied to automobile.The automobile includes
Battery modules 20, motor and charger, the battery management system 10 include signal acquisition circuit 200, controller 300,
Alarm device 400 and the detection circuit 100.
Further, in the present embodiment, the battery modules 20 are connected respectively with the motor and charger, described
Signal acquisition circuit 200 is connected between the input of the output interface 160 and the controller 300, the alarm device
400 are connected with the controller 300.
By above-mentioned design, it is capable of achieving：It is raw when the signal acquisition circuit 200 receives first comparison signal
Into the first sampled signal and send to the controller 300, when the signal acquisition circuit 200 receives described second letter is compared
Number when, generate the second sampled signal and simultaneously send to the controller 300.When the controller 300 receives second sampling
During signal, control the motor reduction output and set with reducing the discharge current of the battery modules 20, controlling the charging
Make preparation for dropping low output to reduce the charging current of the battery modules 20 and control the alarm device 400 to send alarm signal
Number.
Alternatively, the alarm device 400 can be audible alarm unit, light alarming device and word, picture report
One or more in alarm device.In the present embodiment, the alarm device 400 includes audible alarm unit and word, picture
Alarm device.The audible alarm unit realizes alarm by buzzer, and the word, picture alarm device pass through automobile
Instrumentation realize alarm.
By the setting of the alarm device 400, autoist can be carried out in time, effectively fault cues.One
Aspect, can avoid autoist from depositing in the case of a fault not knowing battery modules 20, make because being continuing with automobile
Into Exploration on Train Operation Safety.On the other hand, autoist can be safeguarded in time, it is to avoid persistently be used, and cause battery mould
The further damage of group 20.
With reference to Fig. 5, in the present embodiment, the controller 300 is provided with communication module 320, the battery management system
10 also include terminal server 500.When the controller 300 receives second sampled signal, the controller 300 is given birth to
Send to the terminal server 500 into fault message and by the communication module 320.
By the terminal server 500, auto repair personnel can in time grasp the battery modules 20 of corresponding automobile
Situation, maintenance arrangement is rationally carried out to battery modules 20 in order to auto repair personnel.
In sum, the present invention is provided a kind of detection circuit 100 and battery management system 10, by current sensor
120 and the setting of comparison circuit 140, to being contrasted by the electric current of any two battery cell 28, it can be deduced that battery list
The problem that body 28 comes off or fail with the presence or absence of welding, it is to avoid the security performance of battery modules 20 is affected because persistently using.
Secondly, by arranging many sub- output interfaces, can effectively judge that welding in battery modules 20 comes off or Problem of Failure
Particular location, is conducive to attendant to carry out maintenance process.Finally, by the setting of controller 300, battery modules can be controlled
20 charging current and discharge current, and then avoid causing the problem of the damage aggravation of battery modules 20.
In describing the invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " connection " is answered
It is interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or is integrally connected；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, above-mentioned term tool in the present invention can be understood with concrete condition
Body implication.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. it is a kind of to detect circuit, for detecting the working condition of battery modules, it is characterised in that the battery modules include multiple
Battery cell, the detection circuit includes multiple current sensors and at least one comparison circuit, and the comparison circuit includes the
One input and the second input；
The plurality of current sensor is respectively arranged at each battery cell, and the current sensor is used for according to by described
The electric current that the amplitude of battery cell is different produces the different induced signal of amplitude, the outfan of current sensor described in any two
It is connected with the first input end and the second input of comparison circuit described at least one respectively；
When the width of the induced signal of the amplitude and the second input of the induced signal of the first input end for being input into the comparison circuit
When being worth identical, the comparison circuit exports the first comparison signal；
When the width of the induced signal of the amplitude and the second input of the induced signal of the first input end for being input into the comparison circuit
When value is different, the comparison circuit exports the second comparison signal.
2. detection circuit according to claim 1, it is characterised in that the quantity of the current sensor and the battery list
The quantity of body is identical and corresponds, and each current sensor is sheathed on respectively each battery cell.
3. detection circuit according to claim 2, it is characterised in that the outfan of the adjacent current sensor of any two
It is connected with the first input end and the second input of comparison circuit described at least one respectively.
4. detection circuit according to claim 1, it is characterised in that the detection circuit is additionally provided with output interface, institute
The outfan for stating comparison circuit is connected with the output interface.
5. detection circuit according to claim 4, it is characterised in that when the comparison circuit for it is multiple when, the output
Interface includes many sub- output interfaces, and the quantity of the sub- output interface is identical with the quantity of the comparison circuit and one a pair
Should, the outfan of each comparison circuit is connected respectively with each sub- output interface.
6. detection circuit according to claim 1, it is characterised in that the comparison circuit is difference channel, the electric current
Sensor is Hall current sensor.
7. a kind of battery management system, is applied to automobile, and the automobile includes battery modules and motor, it is characterised in that described
Battery management system includes the detection circuit described in signal acquisition circuit, controller and claim 1-6 any one, described
Battery modules and the motor connection, the signal acquisition circuit is connected to the outfan and the controller of the detection circuit
Input between；
When the signal acquisition circuit receives first comparison signal, generate the first sampled signal and send to the control
Device processed, when the signal acquisition circuit receives second comparison signal, generates the second sampled signal and sends to described
Controller；
When the controller receives second sampled signal, controlling the motor reduces output to reduce the electricity
The discharge current of pond module.
8. battery management system according to claim 7, it is characterised in that the automobile also includes charger, described
Charger is connected with the battery modules；
When the controller receives second sampled signal, controlling the charger reduces output to reduce
State the charging current of battery modules.
9. battery management system according to claim 7, it is characterised in that the automobile also includes alarm device, described
Alarm device is connected with the controller；
When the controller receives second sampled signal, control the alarm device and send alarm signal.
10. the battery management system according to claim 7 any one, it is characterised in that the battery management system is also
Including terminal server, the controller is provided with communication module；
When the controller receives second sampled signal, the controller generates fault message and by the communication
Module is sent to the terminal server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035743.6A CN106671817B (en) | 2017-01-17 | 2017-01-17 | A kind of detection circuit and battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035743.6A CN106671817B (en) | 2017-01-17 | 2017-01-17 | A kind of detection circuit and battery management system |
Publications (2)
| Publication Number | Publication Date |
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| CN106671817A true CN106671817A (en) | 2017-05-17 |
| CN106671817B CN106671817B (en) | 2019-08-23 |
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ID=58860358
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710035743.6A Active CN106671817B (en) | 2017-01-17 | 2017-01-17 | A kind of detection circuit and battery management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991624A (en) * | 2017-11-28 | 2018-05-04 | 臻昊(北京)新能源科技有限公司 | Safety detection device and safety detection method |
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|---|---|---|---|---|
| EP0909675A2 (en) * | 1997-10-13 | 1999-04-21 | Toyota Jidosha Kabushiki Kaisha | Secondary battery charge and discharge control device |
| US6630764B1 (en) * | 1999-04-01 | 2003-10-07 | Jean-Yves Dube | High performance brushless motor and drive for an electrical vehicle motorization |
| CN102355022A (en) * | 2011-09-30 | 2012-02-15 | 北京国电通网络技术有限公司 | Lithium-ion battery pack managing system and method |
| CN202548297U (en) * | 2012-02-10 | 2012-11-21 | 上海三玖电气设备有限公司 | Monitoring system in cylindrical battery pack |
| CN203071564U (en) * | 2012-12-28 | 2013-07-17 | 中国移动通信集团安徽有限公司 | Access control device of storage battery |
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2017
- 2017-01-17 CN CN201710035743.6A patent/CN106671817B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0909675A2 (en) * | 1997-10-13 | 1999-04-21 | Toyota Jidosha Kabushiki Kaisha | Secondary battery charge and discharge control device |
| US6630764B1 (en) * | 1999-04-01 | 2003-10-07 | Jean-Yves Dube | High performance brushless motor and drive for an electrical vehicle motorization |
| CN102355022A (en) * | 2011-09-30 | 2012-02-15 | 北京国电通网络技术有限公司 | Lithium-ion battery pack managing system and method |
| CN202548297U (en) * | 2012-02-10 | 2012-11-21 | 上海三玖电气设备有限公司 | Monitoring system in cylindrical battery pack |
| CN203071564U (en) * | 2012-12-28 | 2013-07-17 | 中国移动通信集团安徽有限公司 | Access control device of storage battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991624A (en) * | 2017-11-28 | 2018-05-04 | 臻昊(北京)新能源科技有限公司 | Safety detection device and safety detection method |
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| Publication number | Publication date |
|---|---|
| CN106671817B (en) | 2019-08-23 |
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