CN201282174Y - Layered type battery management system - Google Patents
Layered type battery management system Download PDFInfo
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- CN201282174Y CN201282174Y CNU2008201194983U CN200820119498U CN201282174Y CN 201282174 Y CN201282174 Y CN 201282174Y CN U2008201194983 U CNU2008201194983 U CN U2008201194983U CN 200820119498 U CN200820119498 U CN 200820119498U CN 201282174 Y CN201282174 Y CN 201282174Y
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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
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Abstract
The utility model discloses a layered framework-type battery management system, which mainly comprises a battery monitoring and protecting module, a layer-management module and a communicating and decision-making module; the battery monitoring and protecting module is directly and mutually connected with the battery, the layer-management module is mutually connected with the battery monitoring and protecting module and the communicating and decision-making module; in addation, the communicating and decision-making module is mutually connected with an electrical system or an electric power used terminal electron and a motor device; the utility model utilizes a digital transmission interface managed by a general battery and utilizes the upload and download circuit constructed by direct current potential isolating components to screen the data through the layer-management module and utilizes the layering-type management framework constructed by a terminal controlling module to screen and quickly transmit less and useful data, so as to meet the requirements of the real-time management of large-scale battery packs.
Description
Technical field
The utility model is about a kind of layer architecture formula battery management system.
Background technology
The battery of present electric motor car uses, and usually uses numeral to link up interface, as the keyholed back plate of charge and discharge in the electric motor car electric power system, and the residual electric weight of monitoring battery and other working condition.But in the process of motor vehicle development, the lifting gradually of the battery capacity and the power of battery, under the consideration of best battery capacity combination, the use of many strings and battery pack, become the inexorable trend of electric motor car power system development, and the replacing in many strings and the battery pack is safeguarded, also becomes one of project that digital monitor system must consider.
Use electronics, the motor device of battery now as electric power main system or standby system, most states that all adopted the digital communication interface monitoring battery, via such digital communication interface, not only can make electronics, the residual electric power of motor device estimating battery of electricity usage end, also suitable caution can be sent when battery is unusual, the danger that may cause after avoiding battery unusual; Because large-sized battery pack commonly used in the past is to use lead-acid battery more, this is because lithium was that battery (Lithium Based Battery) has certain danger in the past, blast when being used in large-sized battery, risk on fire are difficult to accept, because lead-acid battery has cheaply, safeguard to be easy to benefit especially; In such lead-acid battery system, because lead-acid battery is for the tolerance height of overvoltage, low-voltage, and can be by the mode of brine electrolysis and heating, solve the problem of slightly overcharging, in the system of plumbic acid electric power battery, battery monitor system focuses on the monitoring of battery capacity more, and does not have the voltage balance of battery or the demand of single cell voltage monitoring, therefore can use the electronics of simple numerical interface and use side, motor device to link up; But along with the development of electric motor car and lithium Fe battery (LiFePO4battery), the needed function of battery monitor system is the monitoring of battery capacity no longer just.In the use of electric motor car, battery weight is one of important factor of electric energy efficiency, how to alleviate battery weight, increasing effective lifting capacity, or effectively promotes endurance, becomes one of important key factor of electric motor car development; But the lithium Fe battery or the lithium-manganese cell of improvement (Li-Mn battery), though on fail safe and working temperature, the demand that conforms with electric motor car or large-scale power system, but because the low internal resistance of lithium Fe battery or lithium-manganese cell and charging high efficiency, make that these safe lithiums are that battery is to still needing the protection of overvoltage, low-voltage, to guarantee their useful life; Owing to be large-scale electric power system, more, often need dozens of to arrive thousands of battery in the large-sized battery system because lithium is the Economic Capacity of battery itself, reach needed operating voltage and battery capacity in the mode of series and parallel.In such battery pack, except battery is connected in series formed voltage difference, monitor the demand of each cell voltage, certainly will finish in battery modularized mode; Common in the past battery protection module because the limited amount of battery, with traditional standard industry interface (IEEE485/IEEE488), or is usually used in the regional interconnection network (CAN 2.0B) of automobile electronic system, the demand that all can reach monitoring and link up.
See also Fig. 1; be the existing directly digital interface Organization Chart of serial connection; direct serial connection digital interface with buffer circuit; solved the different problem of work reference voltage; direct Chuan Jie digital interface; also make battery be able to modular management and maintenance; but owing to be applied to big electric power battery pack; what show in the drawings is 108 groups when using; the transfer of data of battery status; even enable the transmission mode of higher speed; still need 1.53 seconds consuming time (by among the figure as can be known, its transmission rate is 19200bps, and the time of 11 of every eight bit data demands; it passes order down and constitutes by 4 eight; the battery cell monitoring protection module maximum response delay time is 5ms in addition, thus the required time of communicating with each other of whole battery group be (11* (4+12)/19200+0.005) * 108=1.53 second), this is for the electric motor car that may rely on electric power running fully; or large-scale redundant electric power system (UPS), the electronics of the real-time monitoring battery state of needs; electric system causes the problem on the operational reliability.
And the previous digital interface patent relevant with battery management, in the digital information integrated interface, no matter be to use and be applicable to that Control Network connects (Network Connection), or the single-line type (One-Wire of starlike connection (StarConnect ion), Maxim/HDQ Bus, Ti), or two-wire system (SmartManagement Bus, Intel/CAN-Bus, Controller Area Network) coffret, the cores that adopt single battery management module as decision-making more, or utilize and connect network as linking up each other, the foundation of making a strategic decision voluntarily as each battery module.
Therefore, from the above, using and managing of its existing big electric power battery has following point usually and produces:
1, in big electric power battery pack, except high voltage and big capacity can cause danger in personnel's operation, more because the price and the weight of big electric power battery must be done suitable battery cutting, to reduce the cost of general maintenance.
2, another problem of big electric power battery is the use of a large amount of battery because the electric energy when considering that battery is unusual discharges, battery directly and the number that connects the restriction of security consideration is arranged, also produce the needs that many Battery packs voltage is monitored simultaneously simultaneously.Along with the increase of battery capacity, monitoring module and monitor data amount also increase thereupon; And the data volume that rolls up has not only taken the interface resource of sharing with electricity usage end electronics, motor device, also makes battery monitor system obtain the time delay of each battery data, and the reference time point of each battery data also may be different.
3, be connected in series the work reference voltage difference of the baffle of battery pack in addition; and rising along with serial connection voltage; work reference voltage difference may be up to three, five hectovolts; originally regional interconnection Control Network commonly used (Controller-area network, CAN-bus) or starlike connection network (Star network) can't use.
4, because the numerous assemblies beyond the necessary monitoring battery in real time of the central control module (Centercontroller) of regional interconnection Control Network or starlike connection network, directly with and each battery module of network control of connecing, reach the great number of issues of network complexity if having time; If when connecting with the serial connection net of isolating, though solved the different problem of a plurality of battery module reference voltages, do not take a plurality of identification coding (Identification Number yet, ID) needs, but the simultaneous numerous data of a plurality of battery modules, still cause data transmission period long, the management system decision-making is the result slowly.
5, rolling up owing to present electricity needs, direct serial connection network, or and the battery module quantity that connects on the network also roll up thereupon, cause the data volume on the data network to explode indirectly, therefore the time of transfer of data increase each time, more causes the slow of decision-making time; And the result of data transfer delay may cause the error of decision-making data on free, and therefore the correctness of decision-making is seriously influenced.
Summary of the invention
The purpose of this utility model is to provide a kind of layer architecture formula battery management system, because the use of multi-zone supervision module can be screened and transmit less and useful data fast, to be adapted to the demand of large-sized battery pack real-time management.
Another purpose of the present utility model promptly is to provide a kind of layer architecture formula battery management system, can effectively reduce the required data volume of battery management, quicken the speed of decision of battery management, and effectively shorten the time that the electric power system control end obtains battery pack state information (Status Information), make the demand of electric power system more approaching (real-time) in real time monitoring.
For realizing above purpose, the utility model has been taked following technical scheme: layer architecture formula battery management system, formed by battery cell monitoring protection module, multi-zone supervision module and communication and decision-making module;
Battery module after the array cutting, the battery module after this array cutting is situated between mutually with communication and decision-making module and connects, and the battery module after this array cutting includes array battery cell monitoring protection module and multi-zone supervision module; Wherein this array battery cell monitoring protection module is situated between mutually with the multi-zone supervision module and connects, and directly be connected with battery, each Battery pack monitoring and protection module all is to be situated between mutually to be connected together in addition, and can be required to read the cell voltage and the temperature of each battery by the multi-zone supervision module; This multi-zone supervision module is situated between mutually with array battery cell monitoring protection module and connects, and can regularly read each Battery pack monitoring and protection module on demand in advance;
Link up and decision-making module, this communication and decision-making module are situated between mutually with battery module after array is cut and connect, and this communication and decision-making module can be judged the work order or the calculating parameter of voltage balance of battery.
Because big electric power battery may be because of the demand of maintenance and operation, whole Battery pack group is done suitable cutting, if can be simultaneously with the needs of battery management system according to the battery pack cutting, do necessary layer architecture organizational system, not only can be more prone to by modular battery set management, the data that battery cell monitoring administrative institute is needed, in the multi-zone supervision module, anticipated, and screening, after so revising, not only significantly reduce the data quantity in the battery cell monitoring management, more can handle, quicken the decision-making time of battery cell monitoring management by each parallel division of labor of cutting apart battery module.
The utility model is the digital transmission interface that utilizes the universal battery administration module, and by the construction of DC potential barrier assembly institute upload and under the road that conducts electricity, form several at the battery that suitably cuts big electric power, or dozens of battery module (sub-pack), data screening by the multi-zone supervision module, and the layer-stepping management framework that is construed as of terminal control module, because the use of multi-zone supervision module, can screen and transmit less and useful data fast, to adapt to the demand of large-sized battery pack real-time management.
Layer architecture formula battery management system provided by the utility model compared with prior art has following advantage:
1. this layer architecture formula battery management system, because the use of multi-zone supervision module, can screen and transmit fast less and useful data must be carried out real-time management to adapt to large-sized battery pack, make the demand of electric power system more approaching (real-time) in real time monitoring.
2. this layer architecture formula battery management system, the large-sized battery pack that it set up, the characteristic that not only has easy maintenance, exchange, more because the importing of multi-zone supervision pattern, effectively reduce the required data volume of battery management, quicken the speed of decision of battery management, and effectively shorten the time that the electric power system control end obtains battery pack state information (Status Information).
Description of drawings
Fig. 1 is the existing directly digital interface Organization Chart of serial connection;
Fig. 2 is the cutting battery module Organization Chart of the utility model layer architecture formula battery management system;
Fig. 3 is that first of this layer architecture formula battery management system is implemented illustration; And
Fig. 4 is that second of this layer architecture formula battery management system is implemented illustration;
Description of reference numerals: 11, nine Battery pack monitoring and protection modules; 12, multi-zone supervision module; 2,12 groups the cutting after battery module; 3, communication and decision-making module; 4, high pressure is to low voltage converter; 5, the battery module after 12 groups of cuttings, 6, communication and decision-making module, 7, high pressure is to low voltage converter.
Embodiment
Below in conjunction with the drawings and specific embodiments content of the present utility model is described in further details.
Embodiment one:
See also Fig. 2, be the cutting battery module Organization Chart of the utility model layer architecture formula battery management system, the cutting battery module of this layering structure formula management system includes:
Nine Battery pack monitoring and protection modules 11, this nine Battery packs monitoring and protection module 11 is to be situated between mutually with multi-zone supervision module 12 to connect, and directly be connected with battery, each Battery pack monitoring and protection module all is serially connected in addition, and can be required to read each battery to cell voltage and temperature by multi-zone supervision module 12, return four groups of voltage datas and one group of temperature data again to multi-zone supervision module 12; And multi-zone supervision module 12 requires to read the cell voltage and the temperature of nine Battery pack monitoring and protection modules 11, need use (9*2) * 2Bytes=36Bytes, other nine Battery pack monitoring and protection modules, 11 36 groups of voltage datas of passback and 9 groups of temperature datas need be used (36+9) * 2Bytes=90Bytes altogether;
The control system of the battery management of general direct management mode in the past, must call out each Battery pack monitoring and protection module in proper order, and receive the voltage of each battery of each Battery pack monitoring and protection module passback in proper order, and the temperature value of a plurality of control points, for example in the application of 36 battery, battery voltage passback data volume is just up to 36*2Bytes=72Bytes, and temperature data then needs 18Bytes; If take after the layer architecture management, the communication of battery management and decision-making module require to read the instruction of cutting apart battery pack and only need 4Bytes, just and multi-zone supervision module 12 passback data data can be reduced to 12Bytes.
See also Fig. 3, for first of the utility model layer architecture formula battery management system is implemented illustration, the battery module (serial connection network) after this use layering structure formula management includes:
12 groups the cutting after battery module 2, battery module after first group of battery module 2 cutting after these 12 groups cuttings is situated between mutually with battery module after second group is cut and connects, carry out sequential Jie between group and the group and connect (first group and second group, second group and the 3rd group, the 3rd group the 4th group ... or the like), battery module after the 12 group of cutting then is situated between mutually with communication and decision-making module 3 and connects, battery module 2 after these 12 groups cuttings is by the institute of the battery module after each group cutting and connects and form, in the battery module after each group cutting 9 serial connection battery cell monitoring protection modules and multi-zone supervision module are arranged in addition, and central battery cell monitoring data, anticipating and screening through inner multi-zone supervision module, link up interface by the numeral between the battery module after the cutting again, be passed to and link up and decision-making module 3, and the high voltage different with numerical data, the digital signal of low-voltage also can be delivered to and link up and decision-making module 3 by identical process;
Link up and decision-making module 3, this communication and decision-making module 3 be with the 12 group of cutting after battery module and high pressure be situated between mutually to low voltage converter 4 and connect, this high pressure to low voltage converter 4 provides to be linked up and the decision-making module working power, and this communication and decision-making module 3 can be judged the work order or the calculating parameter of voltage balance of battery, reach each battery cell monitoring protection module under the multi-zone supervision module by the battery module 2 after 12 groups of cuttings again; This communication and decision-making module 3 can be connected with electric power system or electricity usage end electronics, motor device in addition;
So fast and effective battery management system significantly reduces time of digital data transfer, promotes the reaction speed of battery cell monitoring protection; Such layer architecture formula battery management system, extendible on the battery pack of more multi-layered management, the reaction speed that makes the battery cell monitoring protection can not promote with the capacity of electric power battery, and is reduced to unacceptable degree yet.
Embodiment two:
See also Fig. 4, implement illustration for second of the utility model layer architecture formula battery management system, the battery module (and connecing network) of this use layering structure formula battery management system includes:
12 groups the cutting after battery module 5, battery module 5 after these 12 groups cuttings is respectively with communication and decision-making module 6 and connect, in the battery module after each group cutting 9 battery cell monitoring protection modules and multi-zone supervision module are arranged, these 9 battery cell monitoring protection modules are respectively with the multi-zone supervision module and connect in addition, and the anticipating and screening of multi-zone supervision module, can significantly reduce the time of digital data transfer, the reaction speed of battery cell monitoring protection also promotes thereupon;
Link up and decision-making module 6, this communication and decision-making module 6 be with 12 groups of cuttings after battery module 5 and high pressure be situated between mutually to low voltage converter 7 and connect, battery module 5 after this communication and decision-making module 6 then cut with 12 groups carries out and connects, owing to directly used the greatest problem of regional interconnection Control Network in the past at big electric power battery, be because and connect the online too bulky complex of network, may cause system maintenance, reach the difficulty when partly battery module is changed; If after doing the cutting of suitable battery according to the serial connection state of battery pack, and import layer architecture formula battery management system, the battery cell monitoring management and connect the digital network number and just can maintain acceptable scope.
Above-listed detailed description is at the specifying of the utility model possible embodiments, and this embodiment is not in order to limiting claim of the present utility model, does not allly break away from the equivalence that the utility model does and implements or change, all should be contained in the claim of this case.
Claims (6)
1, a kind of layer architecture formula battery management system is characterized in that, comprising:
Battery module after the array cutting, the battery module after this array cutting is situated between mutually with communication and decision-making module and connects, and the battery module after this array cutting includes array battery cell monitoring protection module and multi-zone supervision module; Wherein this array battery cell monitoring protection module is situated between mutually with the multi-zone supervision module and connects, and directly be connected with battery, each Battery pack monitoring and protection module all is to be situated between mutually to be connected together in addition, and can be required to read the cell voltage and the temperature of each battery by the multi-zone supervision module; This multi-zone supervision module is situated between mutually with array battery cell monitoring protection module and connects, and can regularly read each Battery pack monitoring and protection module on demand in advance;
Link up and decision-making module, this communication and decision-making module are situated between mutually with battery module after array is cut and connect, and this communication and decision-making module can be judged the work order or the calculating parameter of voltage balance of battery.
2, layer architecture formula battery management system as claimed in claim 1, it is characterized in that: this multi-zone supervision module has data processing and screening, and links up with battery cell monitoring protection module and communication and decision-making module.
3, layer architecture formula battery management system as claimed in claim 1 is characterized in that: one of them numeral with DC potential barrier assembly at least of this array battery cell monitoring protection module and multi-zone supervision module is linked up interface.
4. layer architecture formula battery management system as claimed in claim 1 is characterized in that: the battery module after this array cutting has the framework of multi-zone supervision.
5. layer architecture formula battery management system as claimed in claim 4, it is characterized in that: the framework of this multi-zone supervision is a sandwich construction, can be two-layer or two-layer more than.
6. layer architecture formula battery management system as claimed in claim 1 is characterized in that: this communication and decision-making module are to be connected with electric power system or electricity usage end electronics, motor device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201194983U CN201282174Y (en) | 2008-08-13 | 2008-08-13 | Layered type battery management system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201194983U CN201282174Y (en) | 2008-08-13 | 2008-08-13 | Layered type battery management system |
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| CN201282174Y true CN201282174Y (en) | 2009-07-29 |
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| CNU2008201194983U Expired - Lifetime CN201282174Y (en) | 2008-08-13 | 2008-08-13 | Layered type battery management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103226184A (en) * | 2013-03-20 | 2013-07-31 | 东莞宇龙通信科技有限公司 | Method for acquiring cell information in multicell terminal and multicell terminal |
-
2008
- 2008-08-13 CN CNU2008201194983U patent/CN201282174Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103226184A (en) * | 2013-03-20 | 2013-07-31 | 东莞宇龙通信科技有限公司 | Method for acquiring cell information in multicell terminal and multicell terminal |
| CN103226184B (en) * | 2013-03-20 | 2015-09-02 | 东莞宇龙通信科技有限公司 | The method of battery information and many battery terminal is obtained in many battery terminal |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160414 Address after: Chinese Taiwan New Taipei City and District Road No. 512, building 6. Patentee after: Bada Innovation Science and Technology Co., Ltd. Address before: Lake Road, Neihu district Taipei city Taiwan China section of No. 396 2 floor 1 Patentee before: Quanyang Energy Technology Corp. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |