CN104716720A - Battery management system - Google Patents
Battery management system Download PDFInfo
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- CN104716720A CN104716720A CN201510168128.3A CN201510168128A CN104716720A CN 104716720 A CN104716720 A CN 104716720A CN 201510168128 A CN201510168128 A CN 201510168128A CN 104716720 A CN104716720 A CN 104716720A
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- control unit
- temperature
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Abstract
The invention relates to the technical field of battery management of communication energy-storage products and particularly relates to a battery management system. The battery management system is characterized in that a DCDC converter converts the voltage of a battery pack into the working voltage of a main control unit; a temperature detection unit, a current detection unit and a voltage detection unit monitor the temperature value, the current value and the voltage value of the battery pack in real time and send the temperature value, the current value and the voltage value of the battery pack to the main control unit by a CAN (Controller Area Network) bus interface; and the main control unit receives commands issued by a monitoring center, controls a fan, a voltage equalizing circuit and a battery protecting circuit so as to realize adjustment for the temperature of the battery pack and equalizing the voltage of a single battery and protect over charging, over discharging, over current, over temperature and short circuit. The battery management system has the advantage that the damage and service-life shortening of the battery pack under the extreme environment can be effectively avoided.
Description
Technical field
The present invention relates to the technical field of battery management of communication energy storaging product, be specifically related to a kind of battery management system.
Background technology
Along with the development of the communication technology, the utilization of communication energy storaging product is extensively promoted, and the most of employing of the energy storaging product that communicates is Li-ion batteries piles, due to Li-ion batteries piles at over-charge protective, Cross prevention, overcurrent protection, overheat protector, the extreme case lower life-spans such as short-circuit protection easily shorten and damage, therefore, the battery management system applying to carry out this battery pack Real-time Monitor Management arises at the historic moment, and relate to Internet data center, communication base station is with in 240V high voltage direct current battery management system, what mostly adopt at present is detect battery temperature, and then supporting corresponding temperature control equipment is set, when temperature exceedes temperature threshold, start-up temperature control device, the temperature of battery pack is regulated.This mode detection signal is comparatively single, and due to too single only according to the judgement of temperature parameter to whole battery performance index, cannot round Realization to the effective monitoring of battery performance, and cannot equilibrium be realized to cell.
Summary of the invention
Solve the problems of the technologies described above, the invention provides a kind of battery management system, can the various states parameter of on-line real-time measuremen battery pack, and communicated with Surveillance center by wireless communication module, can the operational factor of uploads of battery group in real time, and can the instruction that issues of real-time reception control centre, effectively can avoid battery pack damage in extreme circumstances and the lost of life.
In order to achieve the above object, the technical solution adopted in the present invention is, a kind of battery management system, comprise main control unit, DC-DC converter, temperature detecting unit, current detecting unit, voltage detection unit, CAN interface, data storage, fan, voltage balance circuit and battery protecting circuit, battery voltage is changed into main control unit operating voltage by described DC-DC converter, described temperature detecting unit, the temperature value of current detecting unit and voltage detection unit difference Real-Time Monitoring battery pack, current value and magnitude of voltage are also sent to main control unit by CAN interface, main control unit is by temperature value, current value and magnitude of voltage are stored to data storage, main control unit receives the order that Surveillance center issues, and to fan, voltage balance circuit and battery protecting circuit control, realize the adjustment to battery pack temperature, equilibrium is carried out to monomer battery voltage, and overcharge, cross and put, overcurrent, cross gentle short circuit to protect.
Further, also comprise wireless communication module, this temperature value, current value and magnitude of voltage are uploaded to Surveillance center through wireless communication module by main control unit.
Further, temperature detecting unit gathers the cell temperature in battery pack.
Further, voltage detection unit gathers the monomer battery voltage in battery pack, and be sent to main control unit by CAN interface, main control unit compares the voltage differences between monomer voltage, and calculate average voltage level, thus sending instruction to voltage balance circuit, voltage balance circuit carries out electric voltage equalization to the cell in battery pack.
The present invention is by adopting technique scheme, and compared with prior art, tool has the following advantages:
Battery management system of the present invention devises CAN interface, its temperature detecting unit, current detecting unit and voltage detection unit transfer to main control unit by CAN interface, realize fast transport, and devise voltage balance circuit, equilibrium is carried out to the monomer voltage in battery pack, voltage difference between bonding bulk voltage, in reasonable threshold value, ensures the job stability of battery pack.Have also been devised fan and battery protecting circuit, realize the adjustment of battery pack temperature and put overcharging, crossing, overcurrent, cross gentle short circuit and protect.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention.
Embodiment
Now the present invention is further described with embodiment by reference to the accompanying drawings.
As a specific embodiment, as shown in Figure 1, a kind of battery management system of the present invention, comprises main control unit 1, DC-DC converter 2, temperature detecting unit 3, current detecting unit 4, voltage detection unit 5, CAN interface 6, data storage 7, fan 8, voltage balance circuit 9, battery protecting circuit 10 and wireless communication module 11, battery voltage is changed into main control unit 1 operating voltage by described DC-DC converter 2, described temperature detecting unit 3, the temperature value of current detecting unit 4 and voltage detection unit 5 difference Real-Time Monitoring battery pack, current value and magnitude of voltage are also sent to main control unit 1 by CAN interface 6, and main control unit 1 is by temperature value, current value and magnitude of voltage are stored to data storage 7, and main control unit 1 receives by wireless communication module 11 order that Surveillance center issues, and to fan 8, voltage balance circuit 9 and battery protecting circuit 10 control, and realize the adjustment to battery pack temperature, equilibrium is carried out to monomer battery voltage, and overcharges, cross and put, overcurrent, cross gentle short circuit to protect.
This temperature value, current value and magnitude of voltage are sent to wireless communication module 11 by main control unit 1, and this temperature value, current value and magnitude of voltage are uploaded to Surveillance center by wireless communication module.Cell temperature in temperature detecting unit 3 pairs of battery pack gathers.
Monomer battery voltage in voltage detection unit 5 pairs of battery pack gathers, and be sent to main control unit 1 by CAN interface 6, main control unit 1 compares the voltage differences between monomer voltage, and calculate average voltage level, thus sending instruction to voltage balance circuit 9, the cell in voltage balance circuit 9 pairs of battery pack carries out electric voltage equalization.
Although specifically show in conjunction with preferred embodiment and describe the present invention; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.
Claims (4)
1. a battery management system, it is characterized in that: comprise main control unit, DC-DC converter, temperature detecting unit, current detecting unit, voltage detection unit, CAN interface, data storage, fan, voltage balance circuit and battery protecting circuit, battery voltage is changed into main control unit operating voltage by described DC-DC converter, described temperature detecting unit, the temperature value of current detecting unit and voltage detection unit difference Real-Time Monitoring battery pack, current value and magnitude of voltage are also sent to main control unit by CAN interface, main control unit is by temperature value, current value and magnitude of voltage are stored to data storage, main control unit receives the order that Surveillance center issues, and to fan, voltage balance circuit and battery protecting circuit control, realize the adjustment to battery pack temperature, equilibrium is carried out to monomer battery voltage, and overcharge, cross and put, overcurrent, cross gentle short circuit to protect.
2. battery management system according to claim 1, is characterized in that: also comprise wireless communication module, this temperature value, current value and magnitude of voltage are uploaded to Surveillance center through wireless communication module by main control unit.
3. battery management system according to claim 1, is characterized in that: temperature detecting unit gathers the cell temperature in battery pack.
4. battery management system according to claim 1, it is characterized in that: voltage detection unit gathers the monomer battery voltage in battery pack, and be sent to main control unit by CAN interface, main control unit compares the voltage differences between monomer voltage, and calculate average voltage level, thus sending instruction to voltage balance circuit, voltage balance circuit carries out electric voltage equalization to the cell in battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510168128.3A CN104716720A (en) | 2015-04-11 | 2015-04-11 | Battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510168128.3A CN104716720A (en) | 2015-04-11 | 2015-04-11 | Battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104716720A true CN104716720A (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510168128.3A Pending CN104716720A (en) | 2015-04-11 | 2015-04-11 | Battery management system |
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| CN (1) | CN104716720A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242576A (en) * | 2015-09-22 | 2016-01-13 | 苏州工业园区职业技术学院 | Battery monitoring management system |
| WO2019042436A1 (en) * | 2017-08-31 | 2019-03-07 | 比亚迪股份有限公司 | Battery balancing system, vehicle, battery balancing method, and storage medium |
| WO2019042363A1 (en) * | 2017-08-31 | 2019-03-07 | 比亚迪股份有限公司 | Battery equalization system, vehicle, battery equalization method, and storage medium |
| CN110419152A (en) * | 2017-03-14 | 2019-11-05 | 株式会社杰士汤浅国际 | Protective device |
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| CN101192756A (en) * | 2006-12-02 | 2008-06-04 | 比亚迪股份有限公司 | Balance charging and discharging protection circuit of secondary battery and its method |
| CN102231546A (en) * | 2011-06-30 | 2011-11-02 | 武汉市菱电汽车电子有限责任公司 | Battery management system with balanced charge and discharge functions and control method thereof |
| CN203157756U (en) * | 2013-04-17 | 2013-08-28 | 河北博联通讯科技有限责任公司 | Lithium battery pack monitoring and control system for electric automobile |
| CN104104137A (en) * | 2014-07-23 | 2014-10-15 | 山东大学 | Lithium iron phosphate power battery management system and management method |
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2015
- 2015-04-11 CN CN201510168128.3A patent/CN104716720A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192756A (en) * | 2006-12-02 | 2008-06-04 | 比亚迪股份有限公司 | Balance charging and discharging protection circuit of secondary battery and its method |
| CN102231546A (en) * | 2011-06-30 | 2011-11-02 | 武汉市菱电汽车电子有限责任公司 | Battery management system with balanced charge and discharge functions and control method thereof |
| CN203157756U (en) * | 2013-04-17 | 2013-08-28 | 河北博联通讯科技有限责任公司 | Lithium battery pack monitoring and control system for electric automobile |
| CN104104137A (en) * | 2014-07-23 | 2014-10-15 | 山东大学 | Lithium iron phosphate power battery management system and management method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242576A (en) * | 2015-09-22 | 2016-01-13 | 苏州工业园区职业技术学院 | Battery monitoring management system |
| CN110419152A (en) * | 2017-03-14 | 2019-11-05 | 株式会社杰士汤浅国际 | Protective device |
| WO2019042436A1 (en) * | 2017-08-31 | 2019-03-07 | 比亚迪股份有限公司 | Battery balancing system, vehicle, battery balancing method, and storage medium |
| WO2019042363A1 (en) * | 2017-08-31 | 2019-03-07 | 比亚迪股份有限公司 | Battery equalization system, vehicle, battery equalization method, and storage medium |
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Application publication date: 20150617 |