CN201946711U - Battery management system - Google Patents
Battery management system Download PDFInfo
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- CN201946711U CN201946711U CN2010206230019U CN201020623001U CN201946711U CN 201946711 U CN201946711 U CN 201946711U CN 2010206230019 U CN2010206230019 U CN 2010206230019U CN 201020623001 U CN201020623001 U CN 201020623001U CN 201946711 U CN201946711 U CN 201946711U
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- battery
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a battery management system, which comprises a Hall current sensor and a voltage sensor. The Hall current sensor is connected in series with the voltage sensor to be connected with a battery detection module group. An output end obtained after connection is connected to a data processing module through an unlimited link. After processing current data and voltage data of the battery, the data processing module outputs the current data and the voltage data through a CAN (Controller Area Network) bus. The utility model provides the LTC ((Londline Trunk Controller) 6802-based nickel-metal hydride battery management system used on hybrid power. The system adopts a multiple node module distributed communication structure on the basis of a CAN network. Node modules are used for respectively completing the functions of parameter acquisition, analysis processing, monitoring diagnosis and the like, so that the management system has more advanced functions and higher precision. The reliability and the expansion are improved.
Description
Technical field
The utility model relates to a kind of battery management system, especially a kind of battery management system based on the LTC6802 chip.
Background technology
The capacity of a battery regulation is meant the electric weight that battery can provide to zero charged state from 100% charged state.Be charged to 100% charged state or discharge into zero charged state and can shorten battery life rapidly, therefore should carefully manage battery to avoid charging fully or discharge condition fully.With (utilize 40% capacity) between the charged state that is operated in (30%～70%) and compare, be operated in 10% charged state to (utilizing 80% specified volume) between 90% charged state and the charging cycle total degree of battery can be reduced to original 1/3 or lower.If can correctly estimate the SOC of storage battery, just the electric energy that can rationally utilize storage battery to provide prolongs the useful life of battery pack.In hybrid power system,, need effectively manage the charging and discharging state of every batteries for can maximize performance and the useful life that makes battery pack.Present domestic battery management system is used on the electric automobile mostly, and the battery management system that is used for the battery dragon does not also have, general dependence import, and these management systems are in stability, extensibility, aspects such as operability all are short of to some extent, can't obtain accurately the time that battery pack need discharge and recharge, and can cause the shortening in the useful life of battery pack like this.
The utility model content
The technical problems to be solved in the utility model is: it is advanced more to propose a kind of management system function, and precision is higher, improves the battery management system of reliability and autgmentability.
The technical scheme that the utility model adopted is: a kind of battery management system, comprise Hall current sensor and voltage sensor, described Hall current sensor is connected with battery detecting module group with voltage sensor series connection back, output after the connection is connected to data processing module through Radio Link, exports by the CAN bus behind the electric current of data processing module treatment of battery and the voltage data.
Further, battery detecting module described in the utility model has the battery detecting chip, the input of described battery detecting chip connects voltage detection module and temperature detecting module, the output of described battery detecting chip is connected with controller by first signal isolator, the output of described controller is connected with the CAN transceiver by the secondary signal isolator, and the output of described CAN transceiver connects the CAN bus.
Again further specifically, for stability and the reliability that improves detection, the model of battery detecting chip described in the utility model is LTC6802.
The beneficial effects of the utility model are: the utility model is based on LTC6802 and is used for Ni-MH power cell management system on the hybrid power, system adopts the distributed communication structure based on the multinode module of CAN network, each node module is finished functions such as parameter acquisition, analyzing and processing, monitoring and diagnosis respectively, make Functions of Management System advanced more, precision is higher, improves reliability and autgmentability.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structured flowchart of preferred embodiment of the present utility model;
Fig. 2 is the structured flowchart of the utility model battery detecting module;
Fig. 3 is the utility model CAN communication module hardware design circuit figure;
Fig. 4 is the utility model main program flow chart.
Embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, a kind of battery management system, comprise Hall current sensor and voltage sensor, described Hall current sensor is connected with battery detecting module group with voltage sensor series connection back, output after the connection is connected to data processing module through Radio Link, exports by the CAN bus behind the electric current of data processing module treatment of battery and the voltage data.
As shown in Figure 2, described battery detecting module has the battery detecting chip, the input of described battery detecting chip connects voltage detection module and temperature detecting module, the output of described battery detecting chip is connected with controller by first signal isolator, the output of described controller is connected with the CAN transceiver by the secondary signal isolator, and the output of described CAN transceiver connects the CAN bus.
Adopt P87C591 as microcontroller in the present embodiment.Wherein, the interface circuit design of P87C591 and CAN chip for driving as shown in Figure 3.Mainly by P87C591, photoelectric isolating circuit, three parts such as CAN driving are formed.
Each module of being made up of 12 batteries all contains a circuit board, and LTC6802, microcontroller, CAN interface and electric current isolating transformer are arranged on the plate.
System's total program package is drawn together initialize routine and main circulating program, its flow chart is as shown in Figure 4: system at first powers on, then CAN and timer are carried out initialization, system wait is interrupted, if interruption is arranged, judge interrupt type, if the interruption of SJA1000 controller, just read the data of SJA1000 controller, and the buffer release district, operated and interrupted returning, if timer 50ms cycle interruption is carried out the AD conversion to voltage, current data, calculate the SOC value, and, operated and interrupted returning by CAN transmission related data.
What describe in the above specification is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the technical field after having read specification can to before described embodiment make an amendment or be out of shape, and do not deviate from the essence and the scope of utility model.
Claims (3)
1. battery management system, it is characterized in that: comprise Hall current sensor and voltage sensor, described Hall current sensor is connected with battery detecting module group with voltage sensor series connection back, output after the connection is connected to data processing module through Radio Link, exports by the CAN bus behind the electric current of data processing module treatment of battery and the voltage data.
2. a kind of battery management system as claimed in claim 1, it is characterized in that: described battery detecting module has the battery detecting chip, the input of described battery detecting chip connects voltage detection module and temperature detecting module, the output of described battery detecting chip is connected with controller by first signal isolator, the output of described controller is connected with the CAN transceiver by the secondary signal isolator, and the output of described CAN transceiver connects the CAN bus.
3. a kind of battery management system as claimed in claim 2 is characterized in that: the model of described battery detecting chip is LTC6802.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206230019U CN201946711U (en) | 2010-11-25 | 2010-11-25 | Battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206230019U CN201946711U (en) | 2010-11-25 | 2010-11-25 | Battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201946711U true CN201946711U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206230019U Expired - Fee Related CN201946711U (en) | 2010-11-25 | 2010-11-25 | Battery management system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201946711U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621493A (en) * | 2011-12-29 | 2012-08-01 | 武汉函谷科技有限公司 | Method and device for double-precision SOC (state of charge) test of electric vehicle power battery |
| CN103308859A (en) * | 2012-03-14 | 2013-09-18 | 曾奕 | Monitoring system and monitoring method for statuses of storage batteries |
| CN103308863A (en) * | 2013-06-04 | 2013-09-18 | 上海大乘电气科技有限公司 | Storage battery monitoring system based on fiber optical ring network |
| CN105703425A (en) * | 2016-03-01 | 2016-06-22 | 上海航盛实业有限公司 | Battery management system |
| CN106740179A (en) * | 2016-11-30 | 2017-05-31 | 王俊毅 | A kind of battery system framework, battery system, electric automobile and battery system control strategy |
| CN110265734A (en) * | 2019-06-14 | 2019-09-20 | 湖南科霸汽车动力电池有限责任公司 | 48V track battery voltage monitor |
-
2010
- 2010-11-25 CN CN2010206230019U patent/CN201946711U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621493A (en) * | 2011-12-29 | 2012-08-01 | 武汉函谷科技有限公司 | Method and device for double-precision SOC (state of charge) test of electric vehicle power battery |
| CN103308859A (en) * | 2012-03-14 | 2013-09-18 | 曾奕 | Monitoring system and monitoring method for statuses of storage batteries |
| CN103308863A (en) * | 2013-06-04 | 2013-09-18 | 上海大乘电气科技有限公司 | Storage battery monitoring system based on fiber optical ring network |
| CN105703425A (en) * | 2016-03-01 | 2016-06-22 | 上海航盛实业有限公司 | Battery management system |
| CN106740179A (en) * | 2016-11-30 | 2017-05-31 | 王俊毅 | A kind of battery system framework, battery system, electric automobile and battery system control strategy |
| CN110265734A (en) * | 2019-06-14 | 2019-09-20 | 湖南科霸汽车动力电池有限责任公司 | 48V track battery voltage monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20141125 |
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| EXPY | Termination of patent right or utility model |