CN103166264A - Battery management system - Google Patents

Battery management system Download PDF

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Publication number
CN103166264A
CN103166264A CN2011104201580A CN201110420158A CN103166264A CN 103166264 A CN103166264 A CN 103166264A CN 2011104201580 A CN2011104201580 A CN 2011104201580A CN 201110420158 A CN201110420158 A CN 201110420158A CN 103166264 A CN103166264 A CN 103166264A
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CN
China
Prior art keywords
circuit
battery management
display screen
processing unit
central processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011104201580A
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Chinese (zh)
Inventor
孙勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI FOUNDING NEW ENERGY TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI FOUNDING NEW ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI FOUNDING NEW ENERGY TECHNOLOGY Co Ltd filed Critical SHANGHAI FOUNDING NEW ENERGY TECHNOLOGY Co Ltd
Priority to CN2011104201580A priority Critical patent/CN103166264A/en
Publication of CN103166264A publication Critical patent/CN103166264A/en
Pending legal-status Critical Current

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Abstract

The invention relates to the field of a battery management system and discloses the battery management system which is simple in structure, low in cost, short in response time and high in reliability. The battery management system comprises a power supply, a battery management system (BMS) circuit board, a display screen and a communication interface. The BMS circuit board comprises a central processing unit, a voltage acquisition circuit, an electric current acquisition circuit, a temperature sensor, a charge-discharge control circuit, a display screen interface and an equalization circuit. The voltage acquisition circuit, the electric current acquisition circuit, the temperature sensor, the charge-discharge control circuit, the display screen interface and the equalization circuit are all connected with the central processing unit. The voltage acquisition circuit, the electric current acquisition circuit and the temperature sensor are all connected with the power supply. The display screen is connected with the display screen interface. The communication interface is connected with the central processing unit. Due to the fact that the BMS circuit board integrates the central processing unit with the charge-discharge control circuit, the whole battery management system has the advantages of being simple in structure, low in cost, short in the response time and high in reliability.

Description

A kind of battery management system
Technical field
The present invention and battery management system field relate in particular to a kind of simple in structure, cost is low, the response time is short and reliability is high battery management system.
Background technology
Along with the progress of society, people are increasing to the demand of clean energy resource, and lithium battery has the characteristics such as energy density is high, environmentally safe as a kind of energy storage medium, are applied in increasing occasion.But, safe and reliable use lithium battery, need to there be a kind of device that lithium battery is monitored, prevent the situations such as lithium battery overcharges, overdischarge, short circuit, these situations occur will cause the lithium battery life-span seriously to shorten, even may cause security incident.This device is exactly battery management system.
Existing battery management system (be called for short BMS) on the market at present, by voltage detection module, current detection module, main control module, discharge and recharge control module, LCD MODULE etc. and form, as shown in Figure 1, wherein the information of voltage of voltage acquisition module each batteries that will collect is transferred in main control module by industrial bus; Current module with the current delivery that collects in main control module; Main control module, is given to discharge and recharge control module transmission shutdown command if reach the condition of carrying out protection by electric current and voltage information is carried out integrated treatment, carries out protection; Simultaneously, data being delivered to LCDs shows.Communication interface can read battery system information for external equipment.
The shortcoming of existing battery management system: (1) module is more: need the application scenario of Large-scale systems for electric automobile, electric bus etc., because its battery strings number that need to manage is a lot, it is suitable using existing battery management system.But for electric bicycle, battery-operated motor cycle, golf cart etc., do not need so multi-string battery, the application scenario that electric current is little, existing battery system just seems, and too too fat to move, the inconvenient installation even can't be installed; (2) cost is too high: existing battery management system is because module is more, even use several modules of simplifying most, its price is also more than 5000 yuan, is not suitable for the application scenario of the minitype motivation such as electric bicycle, battery-operated motor cycle system fully; (3) response time is long: because system's composition module is more, the transmission of information need to consume the plenty of time, causes battery management system to the very fast-response of processing of abnormal conditions, has reduced the performance of battery management system; (4) reliability is low: existing battery management system is comprised of a plurality of modules, and each module has independently controller, current supply circuit, communication interface etc., and system configuration is complicated.Therefore, its point that may break down is a lot, is difficult to accomplish high reliability.
Summary of the invention
The invention provides a kind of simple in structure, cost is low, the response time is short and reliability is high battery management system.
The invention provides a kind of battery management system, comprise power supply, BMS circuit board, display screen and communication interface;
Described BMS circuit board comprises central processing unit, voltage collection circuit, current collection circuit, temperature sensor, charge-discharge control circuit, display screen interface and equalizing circuit;
Described voltage collection circuit, current collection circuit, temperature sensor, charge-discharge control circuit, display screen interface and equalizing circuit all are connected with described central processing unit;
Described voltage collection circuit, current collection circuit, temperature sensor all are connected with described power supply;
Described display screen is connected with described display screen interface;
Described communication interface is connected with described central processing unit.
Preferably, power supply is battery pack.
Preferably, display screen is LCDs.
Therefore, use battery management system of the present invention, concentrate central processor, charge-discharge control circuit etc. because of the BMS circuit board and be integrated, make whole battery management system have characteristics simple in structure, that cost is low, the response time is short and reliability is high.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, does not consist of to improper restriction of the present invention, in the accompanying drawings:
Fig. 1 is battery management system structure chart provided by the invention.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1:
Fig. 1 is battery management system structure chart provided by the invention, and as can be seen from Figure 1, battery management system comprises battery pack, BMS circuit board, LCDs and communication interface.
The BMS circuit board comprises central processing unit, voltage collection circuit, current collection circuit, temperature sensor, charge-discharge control circuit, display screen interface and equalizing circuit, and it is concentrated on a circuit board.
When using battery management system of the present invention, voltage collection circuit, current collection circuit and temperature sensor obtain corresponding voltage, electric current and temperature data from battery pack, and send it to central processing unit, central processing unit is to data analysis, and judges whether data reach the conditions such as overvoltage, under-voltage, overcurrent, short circuit.If reach overvoltage, charge-discharge control circuit is sent charging closing information, charge closing; If reach under-voltage, overcurrent or short circuit condition, charge-discharge control circuit is sent discharge stop signal, close discharge.And, be presented on LCDs by display screen interface, facilitate the user to check.
Battery management system of the present invention has following characteristics: (1) module is few: this battery management system only is comprised of a circuit board, it is an independently system, compact conformation, small and exquisite (the compact battery management system of our company's exploitation at present of volume, minimum dimension is 16cm * 8cm * 1cm, is very suitable for the application scenarios such as electric bicycle, battery-operated motor cycle); (2) cost is low: owing to having simplified system configuration, reduced hardware cost, therefore, this compact battery management system price also is significantly less than existing battery management system (the compact battery management system that present company has developed, 500 yuan of the price less thaies that wherein price is minimum); (3) response time is short: this compact battery management system, realize voltage acquisition, current acquisition, temperature acquisition on a circuit board, discharged and recharged the circuit such as control, and information of voltage, current information, temperature information etc. are directly read by central processing unit, central processing unit can be sent out control signal to charge-discharge control circuit after reading these information at once, carry out defencive function, whole process does not need to carry out the mutual of information with the external world, response speed is faster more than 5 times than the battery management system of routine, has greatly improved the battery management system performance; (4) reliability is high: due to compact battery management system of the present invention, compact conformation, only formed by a circuit board, the point that may break down is few, and it does not need and other module interactive information, avoided the obliterated data that may occur in the communication process, mess code equivalent risk, reliability is higher than conventional at present battery management system.
Therefore, battery management system of the present invention is a kind of simple in structure, cost is low, the response time is short and reliability is high battery management system.
The above technical scheme that the embodiment of the present invention is provided is described in detail, used specific case herein principle and the execution mode of the embodiment of the present invention are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the present invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the present invention, all will change on embodiment and range of application, in sum, this description should not be construed as limitation of the present invention.

Claims (3)

1. a battery management system, is characterized in that: comprise power supply, BMS circuit board, display screen and communication interface; Described BMS circuit board comprises central processing unit, voltage collection circuit, current collection circuit, temperature sensor, charge-discharge control circuit, display screen interface and equalizing circuit; Described voltage collection circuit, current collection circuit, temperature sensor, charge-discharge control circuit, display screen interface and equalizing circuit all are connected with described central processing unit; Described voltage collection circuit, current collection circuit, temperature sensor all are connected with described power supply; Described display screen is connected with described display screen interface; Described communication interface is connected with described central processing unit.
2. battery control system according to claim 1, is characterized in that described power supply is battery pack.
3. battery control system according to claim 1, is characterized in that described display screen is LCDs.
CN2011104201580A 2011-12-14 2011-12-14 Battery management system Pending CN103166264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011104201580A CN103166264A (en) 2011-12-14 2011-12-14 Battery management system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011104201580A CN103166264A (en) 2011-12-14 2011-12-14 Battery management system

Publications (1)

Publication Number Publication Date
CN103166264A true CN103166264A (en) 2013-06-19

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CN2011104201580A Pending CN103166264A (en) 2011-12-14 2011-12-14 Battery management system

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CN (1) CN103166264A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106872902A (en) * 2017-02-21 2017-06-20 河南豫清新能源产业有限公司 The BMS and detection method of a kind of combination of network structure battery
CN109803001A (en) * 2018-12-29 2019-05-24 中科院计算技术研究所南京移动通信与计算创新研究院 Intelligent electrical bike management system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1481059A (en) * 2002-12-26 2004-03-10 北京机电研究所 Equipment for managing accumulator battery of motive power utilized in electric automobile
CN101141070A (en) * 2006-09-06 2008-03-12 迈为电子技术(上海)有限公司 Novel intelligent electric machine battery control system
CN201773918U (en) * 2009-11-10 2011-03-23 江苏海四达电源股份有限公司 Power lithium storage battery pack management system
CN201947015U (en) * 2011-01-18 2011-08-24 中国船舶重工集团公司第七一二研究所 Control device for lithium ion power battery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1481059A (en) * 2002-12-26 2004-03-10 北京机电研究所 Equipment for managing accumulator battery of motive power utilized in electric automobile
CN101141070A (en) * 2006-09-06 2008-03-12 迈为电子技术(上海)有限公司 Novel intelligent electric machine battery control system
CN201773918U (en) * 2009-11-10 2011-03-23 江苏海四达电源股份有限公司 Power lithium storage battery pack management system
CN201947015U (en) * 2011-01-18 2011-08-24 中国船舶重工集团公司第七一二研究所 Control device for lithium ion power battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106872902A (en) * 2017-02-21 2017-06-20 河南豫清新能源产业有限公司 The BMS and detection method of a kind of combination of network structure battery
CN109803001A (en) * 2018-12-29 2019-05-24 中科院计算技术研究所南京移动通信与计算创新研究院 Intelligent electrical bike management system and method

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Application publication date: 20130619

C12 Rejection of a patent application after its publication