CN103744616A - Data management method for battery management system - Google Patents
Data management method for battery management system Download PDFInfo
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- CN103744616A CN103744616A CN201310697283.5A CN201310697283A CN103744616A CN 103744616 A CN103744616 A CN 103744616A CN 201310697283 A CN201310697283 A CN 201310697283A CN 103744616 A CN103744616 A CN 103744616A
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Abstract
The invention relates to a data management method for a battery management system. The battery management system comprises a main control unit and auxiliary control units connected with the main control unit. The auxiliary control units are respectively provided with a storage circuit. The auxiliary units and the main control unit are respectively connected with an upper computer through a CAN bus to achieve data communication. When the battery management system runs, the auxiliary control units collect various parameter data of each single battery inside battery packs corresponding to the auxiliary control units respectively, and store the parameter data into the storage circuits of the auxiliary control units in a paging mode. The main control unit is controlled to only receive and store various extreme value messages of the single batteries inside the auxiliary control units and fault messages and event data in the system running process. According to the battery management system, data storage occupied space is reasonable, system freedom can be saved, and data are conveniently called and used.
Description
Technical field
The present invention relates to battery management system technical field, particularly the data managing method of battery management system.
background technology
When current battery management system is stored system history data, by main control unit, complete the storage of all data, and do not carry out data storage from control unit.Because main control unit had both been born data processing task, again all data are carried out to record, duty ratio is larger, and conventionally in order to guarantee to record the data in certain a period of time, higher to the capacity requirement of storage chip.Having specified again fixing storage space aspect storage data and having distributed address, cannot carry out the reasonable distribution of storage space, tend to cause certain space waste.While obtaining data, due to disposable all data of obtaining system log (SYSLOG), need to expend the more time, and data volume is huge, is unfavorable for late time data analysis, to data analysis, brought larger difficulty.
Summary of the invention
For overcoming the defect of above-mentioned prior art, the invention provides a kind of battery management system data managing method.
The technical solution used in the present invention is:
A kind of data managing method of battery management system, described battery management system comprise main control unit and be connected with main control unit from control unit, describedly from control unit, be equipped with memory circuit, describedly from control unit, main control unit, all by CAN bus, be connected and realize data communication with host computer.During operation, each gathers respectively the parameters data of each cell in corresponding power brick from control unit, and Fragmentation is in the memory circuit from control unit; And main control unit is controlled every extreme value information and the failure message system operational process and event data the storage that receives only each each battery cell in control unit, during storage, according to carrying out the distribution of storage space from the number of control unit, and according to distributed address, data are stored.During usage data, host computer sends respectively order to carry out data and reads to main control unit or each from control unit, main control unit is controlled and corresponding from control unit, according to reading order, corresponding data to be sent to main control unit by CAN bus, is undertaken sending to host computer after verification resolve by main control unit.
Concrete, described Fragmentation is stored for each from control unit carries out the unified distribution in address and space according to the size of the data stream collecting, and data stream size in 1 page time, is used 1 page of memory module; When data volume size is greater than 1 page of storage space and is less than 2 pages of storage spaces, adopt 2 pages of memory modules; When being greater than 2 pages of storage spaces and being less than 3 pages of storage spaces, adopt 3 pages of memory modules, the like.
Concrete, described in be verified as main control unit and adopt and extract in data stream each extreme value and compare and confirm that whether data correct with the extreme value prestoring.
Preferably, described event data at least comprises charging event, electric discharge event, event of failure.
Beneficial effect of the present invention has:
(1) in battery management system of the present invention, from control unit, possesses data recording function, in described data managing method, utilize from control unit and carry out the stored record of every data in respective battery bag, in the situation that there is no main control unit, can realize all data of single case battery are stored, not rely on main control unit;
(2) main control unit is only born store tasks of every extreme value information from control unit to each, all battery datas is not stored, and has alleviated the load of main control unit, is conducive to that battery management system is more effective to be managed battery;
(3) according to concrete system configuration, carry out rational allocation of space, and according to concrete data stream size, carry out memory module and select or according to data volume size, carry out address assignment under same memory module; Be not limited to and distribute fixed address and space to store, be more conducive to save storage space, improve system storage density, covert increase memory data output;
(4) battery system information is carried out to branch mailbox storage, the data volume that each control module carries is relatively little, in the situation that the identical data recording cycle is relatively low to storage chip capacity requirement, the in the situation that of same capacity data storage chip, be conducive to extend the memory cycle to greatest extent.
(5) storage to every extreme value information and event information, is conducive to understand more intuitively the battery status in battery management system operational process.
(6) in the present invention, host computer can freely be selected that each control module is carried out to data and reads, and is conducive to save data and reads the time, and obtain data targetedly, reduces data volume, can effectively reduce the complexity of data analysis.
Embodiment
For convenience of those skilled in the art, understand technology contents of the present invention, below in conjunction with embodiment, the present invention is described in further detail.
Battery management system of the present invention comprise main control unit and be connected with main control unit from control unit, at each, from control unit, be equipped with memory circuit, for gathering the parameters data of each cell in corresponding power brick, and Fragmentation is in the memory circuit from control unit.Main control unit is for receiving each from every extreme value information of each battery cell and the failure message of system operational process in control unit and charging, electric discharge, fault etc. event data storage.From control unit, main control unit, by CAN bus, be connected and realize data communication with host computer.
During operation, each gathers respectively the parameters data of each cell in corresponding power brick and adopts the mode of Fragmentation to store from control unit.Each stores described Fragmentation from control unit carries out the unified distribution in address and space according to the size of the data stream collecting, and data stream size in 1 page time, is used 1 page of memory module; When data volume size is greater than 1 page of storage space and is less than 2 pages of storage spaces, adopt 2 pages of memory modules; When being greater than 2 pages of storage spaces and being less than 3 pages of storage spaces, adopt 3 pages of memory modules, the like.Like this, battery management system can according to the situation of having stored in flash chip, carry out the dynamic assignment of memory address and storage space according to the size of actual amount of data, to improve the density of data storage.
Main control unit receives every extreme value information of each each battery cell in control unit and failure message and the event data system operational process, during storage, according to carrying out the distribution of storage space from the number of control unit, and according to distributed address, data are stored.During usage data, host computer sends respectively order to carry out data and reads to main control unit or each from control unit, main control unit is controlled and corresponding from control unit, according to reading order, corresponding data to be sent to main control unit by CAN bus, is undertaken sending to host computer after verification resolve by main control unit.
It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these apparent replacement forms all belong to protection scope of the present invention.
Claims (4)
1. the data managing method of a battery management system, described battery management system comprise main control unit and be connected with main control unit from control unit, it is characterized in that: describedly from control unit, be equipped with memory circuit, describedly from control unit, main control unit, all by CAN bus, be connected and realize data communication with host computer;
Each gathers respectively the parameters data of each cell in corresponding power brick from control unit, Fragmentation is in the memory circuit from control unit;
By main control unit, control every extreme value information and the failure message system operational process and event data the storage that receives each each battery cell in control unit, during storage, according to carrying out the distribution of storage space from the number of control unit, and according to distributed address, data are stored;
Host computer sends respectively order to carry out data and reads to main control unit or each from control unit, main control unit is controlled and corresponding from control unit, according to reading order, corresponding data to be sent to main control unit by CAN bus, is undertaken sending to host computer after verification resolve by main control unit.
2. the data managing method of battery management system according to claim 1, it is characterized in that: described Fragmentation is stored for each from control unit carries out the unified distribution in address and space according to the size of the data stream that collects, data stream size in 1 page time, is used 1 page of memory module; When data volume size is greater than 1 page of storage space and is less than 2 pages of storage spaces, adopt 2 pages of memory modules; When being greater than 2 pages of storage spaces and being less than 3 pages of storage spaces, adopt 3 pages of memory modules, the like.
3. the data managing method of battery management system according to claim 2, is characterized in that: described in be verified as main control unit and adopt and extract in data stream each extreme value and compare and confirm that whether data correct with the extreme value prestoring.
4. the data managing method of battery management system according to claim 1, is characterized in that: described event data comprises charging event, electric discharge event, event of failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310697283.5A CN103744616A (en) | 2013-12-19 | 2013-12-19 | Data management method for battery management system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310697283.5A CN103744616A (en) | 2013-12-19 | 2013-12-19 | Data management method for battery management system |
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| CN103744616A true CN103744616A (en) | 2014-04-23 |
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| CN201310697283.5A Pending CN103744616A (en) | 2013-12-19 | 2013-12-19 | Data management method for battery management system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437640A (en) * | 2017-07-17 | 2017-12-05 | 深圳市佰控技术有限公司 | The means of communication of battery management system and battery management system |
| CN109473739A (en) * | 2018-10-12 | 2019-03-15 | 湖北航天技术研究院总体设计所 | A kind of large capacity energy storage battery management system and method |
| CN115129244A (en) * | 2022-05-20 | 2022-09-30 | 杭州高特电子设备股份有限公司 | FLASH chip-based battery management system data storage management method |
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| US7568132B2 (en) * | 2001-09-21 | 2009-07-28 | Hitachi, Ltd. | Fault data exchange between file server and disk control device |
| CN201910474U (en) * | 2010-12-28 | 2011-07-27 | 深圳市航盛电子股份有限公司 | BMS and electric vehicle adopting same |
| CN102738525A (en) * | 2012-06-14 | 2012-10-17 | 沈阳中科正方新能源技术有限公司 | Battery management system of vehicle-mounted lithium power battery |
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2013
- 2013-12-19 CN CN201310697283.5A patent/CN103744616A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7568132B2 (en) * | 2001-09-21 | 2009-07-28 | Hitachi, Ltd. | Fault data exchange between file server and disk control device |
| CN201910474U (en) * | 2010-12-28 | 2011-07-27 | 深圳市航盛电子股份有限公司 | BMS and electric vehicle adopting same |
| CN102738525A (en) * | 2012-06-14 | 2012-10-17 | 沈阳中科正方新能源技术有限公司 | Battery management system of vehicle-mounted lithium power battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437640A (en) * | 2017-07-17 | 2017-12-05 | 深圳市佰控技术有限公司 | The means of communication of battery management system and battery management system |
| CN109473739A (en) * | 2018-10-12 | 2019-03-15 | 湖北航天技术研究院总体设计所 | A kind of large capacity energy storage battery management system and method |
| CN115129244A (en) * | 2022-05-20 | 2022-09-30 | 杭州高特电子设备股份有限公司 | FLASH chip-based battery management system data storage management method |
| CN115129244B (en) * | 2022-05-20 | 2024-04-26 | 杭州高特电子设备股份有限公司 | FLASH chip-based battery management system data storage management method |
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Application publication date: 20140423 |
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