CN203589748U - A battery management controller - Google Patents
A battery management controller Download PDFInfo
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- CN203589748U CN203589748U CN201320310959.6U CN201320310959U CN203589748U CN 203589748 U CN203589748 U CN 203589748U CN 201320310959 U CN201320310959 U CN 201320310959U CN 203589748 U CN203589748 U CN 203589748U
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- voltage
- cell
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The embodiment of the utility model discloses a battery management controller comprising an acquisition chip used for acquiring a voltage of each single battery in a battery pack, a processing chip connected with the acquisition chip and used for obtaining a single battery with a maximum voltage magnitude and/or a single battery with a minimum voltage magnitude through analysis according to the acquired voltage of each single battery, a setting chip used for setting cut-off voltages respectively for the single battery with the maximum voltage magnitude and/or the single battery with the minimum voltage magnitude, an equalization control chip connected with the setting chip and used for carrying out charge and discharge management on the single battery with the maximum voltage magnitude and/or the single battery with the minimum voltage magnitude according to the cut-off voltages. Through the adoption of the battery management controller of the utility model, advantages of controlling the voltage of each single battery in the battery pack, better guaranteeing the performance of the batteries, and prolonging the usage life of the batteries are provided.
Description
Technical field
The utility model relates to electronic technology field, relates in particular to a kind of battery management controller.
Background technology
Energy and environment are two principal themes of the world today, and petroleum resources lack day by day, and environmental pollution is day by day serious, and development new forms of energy are very urgent.Automobile is as the daily vehicles of people, is a large principal element that consumes the energy, contaminated environment, and under and dual-pressure that environmental pollution is serious exhausted at petroleum resources, developing new-energy automobile has become the common recognition of international community.The emphasis of new-energy automobile industry is the electric automobiles such as development plug-in hybrid-power automobile, pure electric automobile.Electric automobile, with low-power consumption, zero feature of polluting, receives much concern.
Electrokinetic cell, as unique power resources of electric automobile, is one of key technology of battery, and the performance of battery directly has influence on the course continuation mileage of electric automobile.The performance of battery and be directly connected to cost and the performance of electric automobile the useful life of battery, and battery consistency is one of important decisive factor of battery performance, so to the management control of battery charging and discharging, improve battery consistency and become one of important technology improving battery car quality.
Electrokinetic cell of the prior art is in the process of giving electric discharge or charge, all directly charging or electric discharge, and in the process discharging and recharging, easily there is the inconsistent or inconsistent situation of discharge voltage of charging voltage, make battery pack in the process of work, some electric quantity of single batteries are too high, and some electric quantity of single batteries are too low, prior art is when battery charging and discharging, the voltage of cell is not managed, easily make battery overcharge or overdischarge, make cell voltage inconsistent.But cell voltage is inconsistent, comprise battery overcharge or overdischarge, all likely make the performance of battery dehydration or heating, reduction battery, shorten the life-span of battery.
Utility model content
The utility model embodiment provides a kind of battery management controller, can judge the cell of magnitude of voltage maximum and the monomer voltage of magnitude of voltage minimum according to the voltage of each cell in battery pack, and it is carried out to management of charging and discharging, can control the voltage of the cell in battery pack, ensure better the performance of battery, extended the life-span of battery.
The utility model embodiment provides a kind of battery management controller, comprising:
Be used for the acquisition chip of the voltage of the each cell that gathers battery pack;
Be connected with described acquisition chip, for obtain the process chip of the cell of each cell magnitude of voltage maximum and/or the voltage battery of magnitude of voltage minimum according to the voltage analysis of the each cell collecting;
Be connected with described process chip, be used to the cell of described magnitude of voltage maximum and/or the cell of magnitude of voltage minimum that the chip that arranges of cut-ff voltage is set respectively;
Arrange with described that chip is connected, for the cell of the cell to described magnitude of voltage maximum and/or magnitude of voltage minimum according to described cut-ff voltage, carry out the balanced control chip of management of charging and discharging, described balanced control chip comprises: for according to the highest described cut-ff voltage to the discharge control of discharge module of management of the cell of described magnitude of voltage maximum, and/or for the cell of described magnitude of voltage minimum being carried out according to described minimum cut-ff voltage the charge control module of Charge Management.
Wherein, the described chip that arranges, comprising:
For setting according to the voltage of the cell of described magnitude of voltage maximum, the discharge ceiling voltage of the highest cut-ff voltage managed of described cell is arranged to module;
For the minimum voltage that described cell is carried out to the minimum cut-ff voltage of Charge Management according to the voltage setting of the cell of described magnitude of voltage minimum, module is set.
Wherein, described process chip, comprising:
For obtain the first processing module of the cell of each cell magnitude of voltage maximum and/or the voltage battery of magnitude of voltage minimum according to the voltage analysis of the each cell collecting;
For calculate the second processing module of the total voltage of described battery pack according to the voltage of the described each cell collecting;
Be connected with described the second processing module, for according to default discharge cut-off voltage, judge that whether the total voltage of described battery pack is lower than described discharge cut-off voltage, if the determination result is YES, make described battery pack stop the 3rd processing module of electric discharge.
Wherein, described battery, comprising: in hybrid power automobile battery, pure electric automobile battery, electric mower battery, uninterrupted power supply UPS at least one.
The utility model embodiment gathers the voltage of each cell in battery pack by acquisition chip, by process chip, process and obtain the cell of magnitude of voltage maximum and/or the cell of magnitude of voltage minimum, and by chip is set, corresponding cut-ff voltage is set, by balanced control chip, according to the cut-ff voltage arranging, the cell to magnitude of voltage maximum and/or the cell of magnitude of voltage minimum carry out management of charging and discharging.The utility model embodiment, by the management of charging and discharging to battery, can control the voltage of the cell in battery pack, has ensured better the performance of battery, has extended the life-span of battery.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the example structure schematic diagram of the battery management controller that provides of the utility model embodiment;
Fig. 2 is the structural representation of the process chip in the example structure schematic diagram of the battery management controller that provides of this practical information embodiment;
Fig. 3 is the structural representation that chip is set in the example structure schematic diagram of the battery management controller that provides of this practical information embodiment;
Fig. 4 is the structural representation of the balanced control chip in the example structure schematic diagram of the battery management controller that provides of this practical information embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, the example structure schematic diagram of the battery management controller providing for the utility model embodiment.The battery management controller that the present embodiment is described, comprising: acquisition chip 10, process chip 20, chip 30 and balanced control chip 40 are set.Acquisition chip 10 is connected with process chip 20, process chip 20 with chip 30 be set be connected, chip 30 is set and is connected with balanced control chip 40.
Wherein, as Fig. 2, above-mentioned process chip 20, comprising:
For obtain the first processing module 21 of the cell of each cell magnitude of voltage maximum and/or the voltage battery of magnitude of voltage minimum according to the voltage analysis of the each cell collecting.
For calculate the second processing module 22 of the total voltage of described battery pack according to the voltage of the described each cell collecting.
Be connected with described the second processing module, for according to default discharge cut-off voltage, judge that whether the total voltage of described battery pack is lower than described discharge cut-off voltage, if the determination result is YES, make described battery pack stop the 3rd processing module 23 of electric discharge.
Wherein, as Fig. 3, the above-mentioned chip 30 that arranges, comprising:
For setting according to the voltage of the cell of described magnitude of voltage maximum the discharge ceiling voltage setting unit 31 of the highest cut-ff voltage of managing of described cell.
For set the minimum voltage setting unit 32 of described cell being carried out to the minimum cut-ff voltage of Charge Management according to the voltage of the cell of described magnitude of voltage minimum.
Wherein, as Fig. 4, above-mentioned balanced control chip 40, comprising:
For according to the highest described cut-ff voltage to the cell of described magnitude of voltage maximum discharge manage control of discharge unit 41.
For the cell of described magnitude of voltage minimum being carried out according to described minimum cut-ff voltage the charging control unit 42 of Charge Management.
In specific implementation, acquisition chip 10 can Real-time Collection battery pack Zhong Ge road cell voltage, the voltage that other chips can collect Ge road cell according to acquisition chip 10 is afterwards managed discharging and recharging of corresponding cell, thereby while making battery set charge/discharge, monomer battery voltage trend is consistent.For example, if there are 24 batteries in battery pack, Ji You 24 road cells, the voltage that acquisition chip 10 can Real-time Collection Zhe24 road cell, the voltage of 20 cells that can collect according to acquisition chip 10 of process chip is processed and is obtained corresponding data.After acquisition chip 10 collects the voltage of each road cell, 21 of the first processing modules in process chip 20 can be processed the maximum and/or the minimum value that obtain monomer battery voltage according to the voltage of each cell.After process chip 20 obtains the cell of magnitude of voltage maximum and/or the cell of magnitude of voltage minimum according to the voltage processing of the each cell collecting, ceiling voltage in chip 30 is set to be arranged the cell that 31 of modules can be magnitude of voltage maximum the highest cut-ff voltage to its management of discharging is set, particularly, can be according to the voltage of this cell, in conjunction with the voltage of other each cells, for this battery is set the cut-ff voltage of its electric discharge, in the process of this cell electric discharge, if detect, the voltage of this battery is lower than the cut-ff voltage of the electric discharge of setting, make this cell stop electric discharge.Minimum voltage arranges the cell that 32 of modules can be magnitude of voltage minimum the minimum cut-ff voltage that it is carried out to Charge Management is set, can be according to the voltage of this cell, in conjunction with the voltage of other each cells, for this battery is set the cut-ff voltage of its charging, in the process of charging for this cell, if detect, the voltage of this battery, higher than the cut-ff voltage of the charging of setting, stops its charging.Owing to there being multichannel battery in battery pack, the voltage of each cell easily occurs inconsistent, when occurring in each cell that magnitude of voltage than the high or low cell of the magnitude of voltage of other cells constantly, can to this battery, carry out management of charging and discharging according to the cut-ff voltage of setting, reduce the voltage of cell of magnitude of voltage maximum or the voltage of the cell of raising magnitude of voltage minimum, the voltage of its voltage and other batteries is tended to balance, keep better the consistency of each monomer battery voltage in battery pack.
In specific implementation, balanced control chip 40 carries out management of charging and discharging to cell can be realized by devices such as relays, can realize charging or the electric discharge management to cell with disconnecting conducting or disconnecting the passage that cell is connected with power supply or dead resistance is connected by the adhesive of controlling the relay being connected with cell.For example, after collecting the voltage of each road cell, analysis obtains the magnitude of voltage minimum of 2 road cells, 42 of charge control module both can be controlled and be connected with 2 road cells, were connecting again the relay adhesive of power end, the interface channel of conducting cell and power supply, this cell is charged, until the voltage of this cell during higher than default minimum cut-ff voltage, disconnects relay, stop this cell charging.If analyze the magnitude of voltage maximum that obtains 3 road cells, 41 of control of discharge modules both can be controlled and be connected with 3 road monomer voltages, connecting again the relay adhesive of dead resistance, the interface channel of conducting cell and dead resistance, by cell, discharge and provide energy for dead resistance, until the voltage of this cell during lower than the highest cut-ff voltage, disconnects relay, make cell finish electric discharge.Balanced control chip 40 is to the management of discharging of the cell of magnitude of voltage maximum, after the cell of magnitude of voltage minimum is carried out to Charge Management, 10 of acquisition chips can this battery pack of Resurvey the real-time voltage of each cell, after the real-time voltage of each cell that process chip 20 bases newly collect is processed and is obtained the cell of new magnitude of voltage maximum and/or the cell of magnitude of voltage minimum, the cell of 40 magnitude of voltage maximums that can obtain new processing of balanced control chip and/or the cell of magnitude of voltage minimum carry out management of charging and discharging, by the voltage of each cell being tended to be balanced to the management of charging and discharging of each monomer battery voltage, improve cell voltage consistency.
In specific implementation, after acquisition chip 10 gathers the voltage of each road cell by acquisition chip, the second processing module 22 in process chip 20 can be calculated according to the voltage that collects Ge road cell the total voltage of battery pack, the 3rd processing module 23 in process chip 20 can be according to the discharge cut-off voltage of these battery pack of setting parameter such as the performance index of battery, when the total voltage of battery pack is during lower than default discharge cut-off voltage, battery pack stops external electric discharge.The battery of describing in the present embodiment can comprise hybrid power automobile battery, pure electric automobile battery, electric mower battery, UPS(Uninterruptible Power Supply, uninterrupted power supply) etc. the battery of electrical equipment.
The utility model embodiment gathers the voltage of the each cell in battery pack by acquisition chip, and according to the magnitude of voltage situation of each cell, come the monomer voltage of decision voltage value maximum and/or the monomer voltage of magnitude of voltage minimum by process chip, by balanced control chip, corresponding monomer voltage is carried out to management of charging and discharging, the voltage of each cell of battery pack is tended to be balanced, improved the consistency of cell voltage, ensured better battery performance, extend the life of a cell.
Above disclosed is only the utility model preferred embodiment, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.
Claims (4)
1. a battery management controller, is characterized in that, comprising:
Be used for the acquisition chip of the voltage of the each cell that gathers battery pack;
Be connected with described acquisition chip, for obtain the process chip of the cell of each cell magnitude of voltage maximum and/or the voltage battery of magnitude of voltage minimum according to the voltage analysis of the each cell collecting;
Be connected with described process chip, be used to the cell of described magnitude of voltage maximum and/or the cell of magnitude of voltage minimum that the chip that arranges of cut-ff voltage is set respectively;
Arrange with described that chip is connected, for the cell of the cell to described magnitude of voltage maximum and/or magnitude of voltage minimum according to described cut-ff voltage, carry out the balanced control chip of management of charging and discharging, described balanced control chip comprises: for according to the highest described cut-ff voltage to the discharge control of discharge module of management of the cell of described magnitude of voltage maximum, and/or for the cell of described magnitude of voltage minimum being carried out according to described minimum cut-ff voltage the charge control module of Charge Management.
2. battery management controller as claimed in claim 1, is characterized in that, the described chip that arranges, comprising:
For setting according to the voltage of the cell of described magnitude of voltage maximum, the discharge ceiling voltage of the highest cut-ff voltage managed of described cell is arranged to module;
For the minimum voltage that described cell is carried out to the minimum cut-ff voltage of Charge Management according to the voltage setting of the cell of described magnitude of voltage minimum, module is set.
3. battery management controller as claimed in claim 1, is characterized in that, described process chip, comprising:
For obtain the first processing module of the cell of each cell magnitude of voltage maximum and/or the voltage battery of magnitude of voltage minimum according to the voltage analysis of the each cell collecting;
For calculate the second processing module of the total voltage of described battery pack according to the voltage of the described each cell collecting;
Be connected with described the second processing module, for according to default discharge cut-off voltage, judge that whether the total voltage of described battery pack is lower than described discharge cut-off voltage, if the determination result is YES, make described battery pack stop the 3rd processing module of electric discharge.
4. the battery management controller as described in claim 1-3 any one, is characterized in that, described battery, comprising: in hybrid power automobile battery, pure electric automobile battery, electric mower battery, uninterrupted power supply UPS at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320310959.6U CN203589748U (en) | 2013-05-31 | 2013-05-31 | A battery management controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320310959.6U CN203589748U (en) | 2013-05-31 | 2013-05-31 | A battery management controller |
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| Publication Number | Publication Date |
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| CN203589748U true CN203589748U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320310959.6U Expired - Fee Related CN203589748U (en) | 2013-05-31 | 2013-05-31 | A battery management controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414217A (en) * | 2013-05-31 | 2013-11-27 | 深圳市冠明能源科技有限公司 | Method and device for battery management |
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2013
- 2013-05-31 CN CN201320310959.6U patent/CN203589748U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414217A (en) * | 2013-05-31 | 2013-11-27 | 深圳市冠明能源科技有限公司 | Method and device for battery management |
| CN103414217B (en) * | 2013-05-31 | 2016-03-30 | 深圳市冠明能源科技有限公司 | A kind of method of battery management and device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20170531 |