CN204230982U - Large Electric car battery supplied system - Google Patents
Large Electric car battery supplied system Download PDFInfo
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- CN204230982U CN204230982U CN201420768651.0U CN201420768651U CN204230982U CN 204230982 U CN204230982 U CN 204230982U CN 201420768651 U CN201420768651 U CN 201420768651U CN 204230982 U CN204230982 U CN 204230982U
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Abstract
A kind of Large Electric car battery supplied system, comprise: a battery pack, it comprises: a total bus-bar, connects at least one load; At least one battery strings, these battery strings are parallel to this total bus-bar in parallel.This battery strings is made up of in the mode of series connection several battery module, and wherein this battery module is made up of in the mode of serial or parallel connection multiple cell; At least one DC to DC electric pressure converter, for becoming fixed system voltage by not specific for battery strings side voltage transitions; The utility model still comprises four large novel features: 1. have buffer battery string, is responsible for vehicle launch Ji the instantaneous large-current of Brake car.2. there is voltage balancing control system, the voltage of each battery strings can be balanced.3. have several DC to DC electric pressure converter, the output voltage for adjusting each battery strings is maintained in fixed system voltage.4. there is cell detecting system, the state of each cell can be detected respectively, and send abnormal signal.
Description
Technical field
The utility model relates to battery supplied system, especially a kind ofly can change cell at the scene and the Large Electric car battery supplied system possessing that buffer battery and battery pack formed.
Background technology
The basic framework of general traditional Large Electric car lithium battery system is made up of cell, because the voltage of single lithium battery is generally between 3.2V ~ 4.2V, and Large Electric car needs high voltage drive motor, its voltage is between 576V ~ 600V therefore need a large amount of series connection.And single lithium battery energy is low, therefore need a large amount of in parallel.Based on above-mentioned situation, a set of jumbo Large Electric lithium battery is by complexity and a large amount of connection in series-parallel formed.Single lithium battery, because energy density is than high, has following properties: 1. based on factory's manufacturing process, material behavior, environmental aspect, causes cell chemical reaction cannot be identical.2., in actual use, due to installation site temperature contrast, quick charge/discharge stream, causes the characteristic changing of cell substrates.3. cell barrier film is because of external force factor, causes drain conditions to differ.
Therefore cell in use for some time, and voltage and electric power storage energy, gradually difference can occur.After cell connection in series-parallel forms battery module, when certain monomer battery voltage and electric power storage energy are below or above other battery.Battery module inside will form backflow, and it is unbalanced that voltage occurs.If this phenomenon is not improved (voltage consistency), oneself battery strings own will be there is take the lead in filling full but other battery strings cannot be filled full when the monomer battery voltage of a certain battery strings is too high.When the monomer battery voltage of a certain battery strings is too low, when whole group of system is discharged, will there is overdischarge situation in this battery strings, causes this cell by deterioration and may form load heating, and causing cells burst.
Current lithium battery factory, in order to meet user's use habit, mostly according to the voltage of client and the demand of capacity, first becomes the battery module of 24V/48V@50AH/100AH with cell string.High-tension battery strings is connected into again by battery module.In the demand according to electric motor car capacity, after several battery strings is carried out parallel connection with direct current bus-bar, form the motor that battery pack is directly supplied to electric motor car.System has also installed battery monitoring system, and the voltage of monitoring battery module, detects the consistency of battery module voltages at any time, avoid the characteristic of battery module differ and cause disaster.So be designed with following pluses and minuses:
Advantage: 1. connection in series-parallel technique is simple.2. cell monitors take battery module as monitoring means, and monitoring quantity significantly reduces, and saves cell monitors volume cost.
Shortcoming: 1. battery module inside is formed by the connection in series-parallel of many cell institutes, and cell monitors cannot monitor the situation of cell.2. the abnormal battery module that causes of cell is abnormal, although battery monitor monitoring is abnormal, prompting changing, has carried out a large amount of connection in series-parallel due to battery and formed huge energy, the battery module in battery strings be changed and quite be not easy, and dangerous.If 3. and upgrade when battery module or repair abnormal cell, formed after battery strings, due to battery strings voltage and direct current bus bar voltage unequal, therefore cannot be directly in parallel, must pass through conductive discharge or alternate manner by time consistent for two terminal voltages, more in parallel, its process is very loaded down with trivial details.4. when after a certain cell of replacing, because new battery behavior is good, therefore easily form battery strings voltage increase when charging, but because battery strings is parallel to direct current bus-bar, battery strings voltage cannot increase, except the backflow of formation battery strings, in this battery strings can long lasting effect to the poor battery of characteristic, permanent formation vicious circle, indirectly can affect the life-span of battery pack.5. battery system is directly connected with motor by bus-bar, and when vehicle launch and brake, discharging current and moment recharge electric current greatly greatly to have moment, and impulse current is bad situation for the long term life of lithium battery.6. after battery monitor detecting battery module exception, send battery factory back to, battery factory must disassemble battery module and become battery unit and check one by one, after changing abnormal cell, recombinant returns battery module, but new and old cell string, characteristic is uncontrollable, and performance of battery module not easily maintains.7. bus bar voltage can decline one by one along with the situation of battery system electric discharge, and its variation in voltage can up to 25%.
Therefore the utility model wishes to propose a kind ofly brand-new change cell at the scene and possess the battery supplied system of the Large Electric car that buffering electric energy pond and battery pack are formed, to solve the defect on prior art.
Utility model content
So the purpose of this utility model is the problem for solving in above-mentioned prior art, propose a kind ofly to change cell at the scene and the Large Electric car battery supplied system possessing that buffer battery and battery pack formed, its advantage is to utilize buffer battery string to be responsible for the instantaneous large-current of vehicle launch and brake, protect other battery strings (lithium battery), extend other battery strings life-span; Each cell of battery strings all monitors, and carries out balancing circuitry, guarantees that the cell in any moment battery strings is harmonious; Battery strings is connected with total bus-bar by direct current two-way DC to DC voltage transducer again, and each battery strings can according to the demand of oneself equalizing circuit, adjustment crosstalk pressure (not affecting other battery strings).
For proposing a kind ofly can to change cell at the scene and possess the Large Electric car battery supplied system of buffer battery and battery pack in the utility model that achieves the above object, comprise:
One battery pack, it comprises: a total bus-bar, comprises two winding displacements, be respectively the first winding displacement and the second winding displacement, and the polarity of this first winding displacement and the second winding displacement is contrary, and this two winding displacement is in parallel or at least one load accepting the electric power that this battery pack provides of connecting in addition; At least one battery strings, these battery strings are parallel between this two winding displacement in parallel, and this battery strings is made up of in the mode of series connection several battery module, and wherein this battery module is made up of in the mode of serial or parallel connection multiple cell; At least one DC to DC electric pressure converter respectively this DC (direct current, direct current) to DC electric pressure converter to be connected between the first corresponding winding displacement and battery strings and specific for battery strings side voltage transitions to be become the fixed system voltage of the first winding displacement side; When closing this DC to DC electric pressure converter, this battery strings departs from total bus-bar; When discharge and recharge, this DC to DC electric pressure converter independently carries out discharge and recharge to battery strings.
The utility model still comprises four large novel features: 1. have buffer battery string, is responsible for the instantaneous large-current of vehicle launch and brake.2. there is voltage balancing control system, the voltage of each battery strings can be balanced.3. have several DC to DC electric pressure converter, the output voltage for adjusting each battery strings is maintained in fixed system voltage.4. there is cell detecting system, the state of each cell can be detected respectively, and send abnormal signal.
Can further understand feature of the present utility model and advantage thereof by explanation hereafter, during reading, please refer to accompanying drawing.
Accompanying drawing explanation
Fig. 1 shows the schematic block diagram of the utility model element.
Fig. 2 shows another schematic block diagram of the utility model element, wherein still comprises voltage balancing control system.
Fig. 3 shows voltage balancing control system schematic of the present utility model.
Fig. 4 shows cell detecting system of the present utility model, is applied to cell schematic diagram.
Fig. 5 shows monomer buffer battery detecting system of the present utility model, is applied to monomer buffer battery schematic diagram.
[main element symbol description]
10 battery strings
11 battery modules
12 cells
13 voltage/current measuring appliances
14 voltage/current measurement processor
15 memory bodys
16 logical blocks
17 sirens and display
20 buffer battery strings
21 buffer battery modules
22 monomer buffer batteries
30 balancing circuitry bus-bars
31 positive pole winding displacements
32 negative pole winding displacements
40 balancers
50 battery strings controllers
60 communication bus-bars
100 total bus-bars
111 battery module controllers
200 sub-bus-bars
300 loads
311 positive poles time separated time
312 positive pole relays
321 negative poles time separated time
322 negative pole relays
400 DC to DC electric pressure converters.
Embodiment
Hereby careful just structure composition of the present utility model, and the effect that can produce and advantage, coordinate graphic, lift a preferred embodiment of the present utility model and be described in detail as follows.
Please refer to shown in Fig. 1 to Fig. 5, show and of the present utility modelly a kind ofly can change cell at the scene and the Large Electric car battery supplied system possessing that buffer battery and battery pack formed, the voltage of the exportable high volt of this battery system, (such as electronic bus) is used for Large Electric car, current reality uses the voltage of this high volt upper to can be 300V (volt), 440V, 576V, 600V, and battery system of the present utility model comprises following elements:
One battery pack, it comprises:
One total bus-bar 100, comprises two winding displacements, is respectively the first winding displacement and the second winding displacement, and the polarity of this first winding displacement and the second winding displacement is contrary, and this two winding displacement can parallel connection or at least one load 300 of connecting in addition, so that the electric power of battery pack is provided in this load 300.Wherein herein using the motor of a parallel connection as load 300, but this is not limited to scope of the present utility model.
At least one battery strings 10, these battery strings 10 are parallel between this two winding displacement in parallel.This battery strings 10 is made up of in the mode of series connection several battery module 11.Wherein this battery module 11 is made up of in the mode of serial or parallel connection the cell 12 extremely many for number.
The utility model mainly has following four large novel features:
(1) tool buffer battery string 20
Wherein this at least one battery strings 10 comprises at least one buffer battery string 20 and is parallel to this total bus-bar 100, and this buffer battery string 20 is made up of in the mode of series connection several buffer battery module 21.Wherein this buffer battery module 21 is made up of in the mode of serial or parallel connection the monomer buffer battery 22 extremely many for number, and this monomer buffer battery 22 is the wherein a kind of of lead-acid battery, lithium titanate battery or super capacitor.
Buffer battery string 20 is applicable to the application of impulse current (moment Large Copacity charge/discharge), and moment impact electric current can't sharply affect buffer battery string 20.So when the load 300 of whole electric power system is risen suddenly (during as vehicle launch or brake) and made electric current sharply increase, this buffer battery string 20 can promote supplied electric current fast to meet the needs of system.
Other battery strings 10 (be generally the battery strings 10 that lithium battery is formed, hereafter explain with lithium battery) are parallel to this total bus-bar 100; Lithium battery is utilized to be applicable to deeper cavity charge-discharge characteristic and energy density than high characteristic, because lithium battery is not suitable for the application of impulse current (moment Large Copacity charge/discharge).Moment impact electric current can affect service life of lithium battery, so system uses lithium battery as power supply during steady-state current, can make the life of whole system.
During operation, when the load 300 of system is risen suddenly (during as vehicle launch or brake), this buffer battery string 20 can supply required moment impact electric current by Quick, and is powered at this load 300 together with other battery strings 10.When the electric current supply of this total bus-bar 100 reaches a stationary value, then with other battery strings 10 for mainly to supply current source, the now electric current supply of this buffer battery string 20 reduces than regular meeting.
(2) voltage balancing control system
The utility model still comprises at least one voltage balancing control system, and with this at least one battery strings 10 R. concomitans, it comprises:
One sub-bus-bar 200, wherein this several battery module 11 connects this sub-bus-bar 200 in the mode of series connection, and this sub-bus-bar 200 is connected in parallel on this total bus-bar 100.
One balancer 40, it has balance of voltage function, connects this sub-bus-bar 200, for balancing the voltage of each battery module 11 in this battery strings 10, to prevent the voltage of some battery module 11 relative to the overtension or too low of other battery modules 11.
One balancing circuitry bus-bar 30, comprises positive pole winding displacement 31 and a negative pole winding displacement 32.Wherein one end of this positive pole winding displacement 31 connects the positive input terminal of this balancer 40, and the other end is then divided into the positive pole time separated time 311 of multiple parallel connection.Respectively the end of this positive pole time separated time 311 is connected to the cathode output end of each corresponding battery module 11.In the battery module 11 of correspondence, respectively this positive pole time separated time 311 comprises the positive pole relay 312 of a correspondence, and this positive pole relay 312 can be used for the electric current of control flow check through this positive pole time separated time 311.
One end of this negative pole winding displacement 32 connects the negative input end of this balancer 40, and the other end is then divided into the negative pole time separated time 321 of multiple parallel connection.Respectively the end of this negative pole time separated time 321 is connected to the cathode output end of each corresponding battery module 11.In the battery module 11 of correspondence, respectively this negative pole time separated time 321 comprises the negative pole relay 322 of a correspondence, and this negative pole relay 322 can be used for the electric current of control flow check through this negative pole time separated time 321.
Several battery module controller 111, wherein each this battery module controller 111 connects this battery module 11 of a correspondence respectively, can be used for the voltage of battery module 11 at sub-series bus-bar 200 two ends detecting each correspondence; And this battery module controller 111 can be used for controlling the negative pole relay 322 of this negative pole time separated time 321 and the positive pole relay 312 of this positive pole time separated time 311.This battery module controller 111 also can be used for the temperature measuring each battery module 11.
One battery strings controller 50, can be used for the electric current controlling whole battery strings 10, to reach the balance of respectively this battery module 11 voltage.This battery strings controller 50 by a communication bus-bar 60 (as RS-485, RJ-45 and other etc. communication modes) battery module 11 controller of respectively this battery module 11 in parallel.Wherein this battery strings controller 50 still connects this balancer 40 by another communication bus-bar 60; This battery strings controller 50 only has the positive pole relay 312 of a battery module 11 can open with negative pole relay 322 when still controlling each operation, all the other all can be closed.
During operation, respectively the voltage of respectively this battery module 11 measured by this battery module controller 111, and this voltage is sent back this battery strings controller 50, by this battery strings controller 50 according to logic decided at the higher level but not officially announced determine voltage and average voltage well-behaved in excessive battery module 11, to carry out the balance of electric current via this balancer 40.After wherein this logic decided at the higher level but not officially announced can make to be averaged to all battery module 11 voltage, get the ratio (as 20%) that the difference of this battery module 11 voltage and average voltage is predetermined more than, namely think well-behaved in excessive, so must the balance of voltage be carried out.
The battery module 11 that now this battery strings controller 50 must carry out the balance of voltage reports this balancer 40, and notifies that the battery module controller 111 of this battery module 11 is with the positive pole relay 312 of the negative pole relay 322 and this positive pole time separated time 311 that are communicated with this negative pole time separated time 321.And make this battery module 11 and balancer 40 form a current circuit be communicated with.
(3) several DC to DC electric pressure converter 400
The utility model still comprises several DC to DC electric pressure converter 400:
Respectively this DC (direct current, direct current) to DC electric pressure converter 400 is connected between the first corresponding winding displacement and battery strings 10, wherein this buffer battery string 20 is not connected this DC to DC electric pressure converter 400, this DC to DC electric pressure converter 400 has the voltage output function of each this battery strings 10 of balance, for specific for battery strings 10 side voltage transitions being become the fixed system voltage of the first winding displacement side.
The effect of this DC to DC electric pressure converter 400 is: when System Operation, the voltage at each battery strings 10 two ends can't be equal, therefore in the running, the battery strings 10 that voltage is lower can absorb the energy of all the other high-voltage battery strings 10 by becoming load 300, make exerting oneself of overall cell cannot reach the set goal value, get off for a long time and will shorten the life-span of battery.This DC to DC electric pressure converter 400 then can make the voltage of each battery strings 10 be fixed system voltage, so can not produce above-mentioned load 300 effect.
Via this DC to DC electric pressure converter 400 of closedown; this battery strings 10 can be allowed to depart from total bus-bar 100, carry out the dress work of battery strings 10, when total bus-bar 100 short circuit; because individual battery strings 10 has the insulation blocking of DC to DC electric pressure converter 400, therefore application is upper safer.
When discharge and recharge operates, this DC to DC electric pressure converter 400 independently can carry out discharge and recharge to battery strings 10, and therefore different battery strings 10 does not have situation about interfering with each other each other and occurs, and each battery strings 10 independently carries out the discharge and recharge operation of oneself.
(4) cell detecting system
The utility model still comprises cell detecting system, and be connected with each this battery module 11 separately, this cell detecting system comprises:
Multiple voltage/current measuring appliance 13, each voltage/current measuring appliance 13 is for measuring connected correspondence one or the output voltage/electric current value of several cell 12, and voltage/current value is outwards transmitted.
One voltage/current measurement processor 14, receives measured value from the plurality of voltage/current measuring appliance 13 and in addition aggregation process;
One memory body 15, is inside built in this voltage/current measurement processor 14, for storing the numerical value of this voltage/current measurement processor 14;
This voltage/current measurement processor 14 comprises a logical block 16, there is Logic judgment and calculation function, this logical block 16 can go out respectively this cell 12 whether normal operation according to Logic judgment decided at the higher level but not officially announced, when this logical block 16 judges that the voltage/current of certain cell 12 is abnormal, the exception information of this cell 12 can be exported, change this cell 12 to remind attendant.
One siren and display 17, connect this logical block 16, receive the exception information of this cell 12, and show in display, this siren then can give a warning the sound remind operation or attendant.
This cell detecting system independently can detect the power supply state of each cell 12, therefore out of order cell 12 can be looked for fast to replace, whole battery module 11 is not needed to disassemble, check out of order cell 12 more one by one, and still have voltage balancing control system due to the utility model, can the magnitude of voltage of balancing battery module 11, so therefore the problem that after the cell 12 more renewed, its voltage can be higher can drop to minimum.
Above-mentioned cell detecting system still can be applicable in buffer battery string 20, be called monomer buffer battery detecting system, its difference is that this battery module 11 is buffer battery module 21, and this cell 12 is monomer buffer battery 22, and all the other application modes are all identical.
The utility model has the advantage of: 1. utilize buffer battery string to be responsible for the instantaneous large-current of vehicle launch and brake, protect other battery strings (lithium battery), extend other battery strings life-span.Because buffer battery string may, because the charging and discharging currents of long-term a large amount of moment, cause the life-span to reduce, can separately exchange buffering battery strings, cost, more than whole Battery pack system conversion, has and reduces costs.2. each cell of battery strings all monitors, and carries out balancing circuitry, guarantees that the cell in any moment battery strings is harmonious.3. battery strings is connected with total bus-bar by direct current two-way DC to DC electric pressure converter again, and each battery strings can according to the demand of oneself equalizing circuit, adjustment crosstalk pressure (not affecting other battery strings).4., when detecting cell and being abnormal, as long as closed by two-way for direct current DC to DC electric pressure converter, total bus-bar can be departed from, carry out battery strings maintenance at the scene.When the abnormal cell reparation of battery strings or after upgrading, although battery strings voltage is different from other, the isolation of DC to DC electric pressure converter can be easily passed through, be incorporated to total bus-bar and On-Line, safe and easily safeguard.5. each battery strings Balance route voluntarily, not by total bus-bar voltage disturbance, easily balanced.6., when charging, by DC to DC electric pressure converter, can separately battery strings be filled full according to required voltage and electric current, can not because of after whole parallel connection, reach high limit because do not organize voltage string and cannot continue to charge.When discharging, sustainable battery strings electric energy being transformed into total bus-bar by DC to DC electric pressure converter, guaranteeing the capacity of battery discharge.7., during total bus-bar short circuit, because each battery strings has DC to DC electric pressure converter to isolate, therefore short circuit energy is less, safer in application.8., owing to passing through isolation and the conversion of DC to DC electric pressure converter, total bus-bar voltage regulation is low, is applicable to the use of motor and electrical equipment on car.9. Large Electric car is different due to charging voltage grade response every country or regional regulation difference, can adapt to all kinds of different charger voltage to this by DC to DC electric pressure converter.Large Electric car adopts this battery system, does not need the demand responding various places charger voltage or capacity, and changes cell system design.
In sum, innovative design of the present utility model, quite realistic demand.It specifically improves existing disappearance, obviously have breakthrough progressive advantage, really have the enhancement of effect, and non-being easy to is reached compared to prior art.On the open or document that is exposed in internal and overseas of the utility model and market, meet patent statute.
Above-listed detailed description is illustrating for a possible embodiments of the present utility model, only this embodiment be not used to limit the scope of the claims of the present utility model, allly do not depart from the equivalence done of the utility model skill spirit and implement or change, all should be contained in the scope of the claims of the present utility model.
Claims (7)
1. can change cell at the scene and possess the Large Electric car battery supplied system of buffer battery and battery pack, it is characterized in that comprising:
One battery pack, it comprises:
One total bus-bar, comprises two winding displacements, is respectively the first winding displacement and the second winding displacement, and the polarity of this first winding displacement and the second winding displacement is contrary, and this two winding displacement is in parallel or at least one load accepting the electric power that this battery pack provides of connecting in addition;
At least one battery strings, these battery strings are parallel between this two winding displacement in parallel, and this battery strings is made up of in the mode of series connection several battery module, and wherein this battery module is made up of in the mode of serial or parallel connection multiple cell;
At least one DC to DC electric pressure converter, respectively this DC to DC electric pressure converter to be connected between the first corresponding winding displacement and battery strings and specific for battery strings side voltage transitions to be become the fixed system voltage of the first winding displacement side; When closing this DC to DC electric pressure converter, this battery strings departs from total bus-bar; When discharge and recharge, this DC to DC electric pressure converter independently carries out discharge and recharge to battery strings.
2. can change cell at the scene as claimed in claim 1 and possess the Large Electric car battery supplied system of buffer battery and battery pack, it is characterized in that: this at least one battery strings still comprises at least one buffer battery connection in series-parallel to this total bus-bar, this buffer battery string is made up of in the mode of series connection several buffer battery module, wherein this buffer battery module is made up of in the mode of serial or parallel connection multiple monomer buffer battery, and this monomer buffer battery is the wherein a kind of of lead-acid battery, lithium titanate battery or super capacitor.
3. can change cell at the scene as claimed in claim 1 and possess the Large Electric car battery supplied system of buffer battery and battery pack, it is characterized in that: still comprise at least one voltage balancing control system, be combined with this at least one battery strings, it comprises:
One sub-bus-bar, wherein this several battery module connects this sub-bus-bar in the mode of series connection, and this sub-bus-bar is connected on this total bus-bar;
One balancer with balance of voltage function, it connects this sub-bus-bar and balances the voltage of each battery module in this battery strings;
One balancing circuitry bus-bar, comprise a positive pole winding displacement and a negative pole winding displacement, wherein one end of this positive pole winding displacement connects the positive input terminal of this balancer, and the other end is then divided into the positive pole time separated time of multiple parallel connection; Respectively the end of this positive pole time separated time is connected to the cathode output end of each corresponding battery module; In the battery module of correspondence, respectively this positive pole time separated time comprise a correspondence for the positive pole relay of control flow check through the electric current of this positive pole time separated time;
One end of this negative pole winding displacement connects the negative input end of this balancer, and the other end is then divided into the negative pole time separated time of multiple parallel connection, and respectively the end of this negative pole time separated time is connected to the cathode output end of each corresponding battery module; In the battery module of correspondence, respectively this negative pole time separated time comprise a correspondence for the negative pole relay of control flow check through the electric current of this negative pole time separated time;
Several battery module controller, wherein each this battery module controller connects this battery module of a correspondence and the voltage of the battery module detecting each correspondence at sub-series bus-bar two ends and/or measure the temperature of each battery module respectively; And this battery module controller connects negative pole time separated time and positive pole time separated time and controls the negative pole relay of this negative pole time separated time and the positive pole relay of this positive pole time separated time;
One for controlling the electric current of whole battery strings to reach the battery strings controller of the balance of respectively this battery module voltages, this battery strings controller also controls to only have the positive pole relay of a battery module and negative pole relay can open all the other when operating by the battery module controller of a communication bus-bar respectively this battery module in parallel at every turn and all can cut out, and wherein this battery strings controller still connects this balancer by another communication bus-bar.
4. can change cell at the scene as claimed in claim 1 and possess the Large Electric car battery supplied system of buffer battery and battery pack, it is characterized in that: still comprise cell detecting system, be connected with each this battery module separately, this cell detecting system comprises:
Multiple voltage/current measuring appliance, each voltage/current measuring appliance connects corresponding one or several cell and for measuring connected correspondence one or the output voltage/electric current value of several cell, has the transmission end of voltage/current value outwards being transmitted;
One voltage/current measurement processor, is connected with the plurality of voltage/current measuring appliance and the measured value received from the plurality of voltage/current measuring appliance in addition aggregation process;
One memory body is for storing the numerical value of this voltage/current measurement processor;
This voltage/current measurement processor comprises one to be had Logic judgment and calculation function and goes out the logical block of each this cell whether normal operation according to Logic judgment decided at the higher level but not officially announced, has the output for the exception information exporting this cell.
5. can change cell at the scene as claimed in claim 2 and possess the Large Electric car battery supplied system of buffer battery and battery pack, it is characterized in that: still comprise monomer buffer battery detecting system, separately with each this buffer battery model calling, this monomer buffer battery detecting system comprises:
Multiple voltage/current measuring appliance, each voltage/current measuring appliance connects with corresponding one or several monomer buffer battery and output voltage/electric current value for measuring connected corresponding one or several monomer buffer battery, has the transmission end of voltage/current value outwards being transmitted;
One voltage/current measurement processor, is connected with the plurality of voltage/current measuring appliance and the measured value received from the plurality of voltage/current measuring appliance in addition aggregation process;
One memory body is for storing the numerical value of this voltage/current measurement processor;
This voltage/current measurement processor comprises one to be had Logic judgment and calculation function and goes out the logical block of each this monomer buffer battery whether normal operation according to Logic judgment decided at the higher level but not officially announced, has the output for the exception information exporting this monomer buffer battery.
6. can change cell at the scene as claimed in claim 4 and possess the Large Electric car battery supplied system of buffer battery and battery pack, it is characterized in that: still comprise a siren and display, this display connects this logical block and receives the exception information of this cell and show in display, and this siren connects this logical block and receives the exception information of this cell and the sound that gives a warning reminds operation or attendant.
7. can change cell at the scene as claimed in claim 5 and possess the Large Electric car battery supplied system of buffer battery and battery pack, it is characterized in that: still comprise a siren and display, this display connects this logical block and receives the exception information of this monomer buffer battery and show in display, and this siren connects this logical block and receives the exception information of this cell and the sound that gives a warning reminds operation or attendant.
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| CN201420768651.0U CN204230982U (en) | 2014-12-09 | 2014-12-09 | Large Electric car battery supplied system |
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| CN106671802A (en) * | 2015-11-05 | 2017-05-17 | 现代自动车株式会社 | Battery apparatus for vehicle |
| CN106740175A (en) * | 2016-11-29 | 2017-05-31 | 北京长城华冠汽车科技股份有限公司 | A kind of batteries of electric automobile drawing driving system and electric automobile |
| CN106828138A (en) * | 2016-11-29 | 2017-06-13 | 北京长城华冠汽车科技股份有限公司 | A kind of electric vehicle battery system drawing recombinates control method |
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| WO2017000275A1 (en) * | 2015-07-01 | 2017-01-05 | 长园科技实业股份有限公司 | Power storage battery power supply system |
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| CN106671802A (en) * | 2015-11-05 | 2017-05-17 | 现代自动车株式会社 | Battery apparatus for vehicle |
| CN106740175A (en) * | 2016-11-29 | 2017-05-31 | 北京长城华冠汽车科技股份有限公司 | A kind of batteries of electric automobile drawing driving system and electric automobile |
| CN106828138A (en) * | 2016-11-29 | 2017-06-13 | 北京长城华冠汽车科技股份有限公司 | A kind of electric vehicle battery system drawing recombinates control method |
| CN106740175B (en) * | 2016-11-29 | 2019-05-28 | 北京长城华冠汽车科技股份有限公司 | A kind of batteries of electric automobile drawing driving system and electric car |
| CN113872258A (en) * | 2020-06-30 | 2021-12-31 | 比亚迪股份有限公司 | Battery current-sharing control method and battery current-sharing control system |
| CN113991263A (en) * | 2021-10-09 | 2022-01-28 | 广东汇天航空航天科技有限公司 | Power system and flyable device |
| CN113991263B (en) * | 2021-10-09 | 2023-06-02 | 广东汇天航空航天科技有限公司 | Power system and flyable device |
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