CN107878239A - A kind of dynamic lithium battery management system - Google Patents

A kind of dynamic lithium battery management system Download PDF

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Publication number
CN107878239A
CN107878239A CN201711173249.2A CN201711173249A CN107878239A CN 107878239 A CN107878239 A CN 107878239A CN 201711173249 A CN201711173249 A CN 201711173249A CN 107878239 A CN107878239 A CN 107878239A
Authority
CN
China
Prior art keywords
lithium battery
voltage
management system
module
stablizer
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.)
Withdrawn
Application number
CN201711173249.2A
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Chinese (zh)
Inventor
赵小亮
张智
施向东
胡迎风
周孝健
易兵兵
杨运
李成庆
苏同皖
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.)
Bengbu Yingtong Industrial Design Co ltd
Original Assignee
Anhui Zero Amperex Technology 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 Anhui Zero Amperex Technology Ltd filed Critical Anhui Zero Amperex Technology Ltd
Priority to CN201711173249.2A priority Critical patent/CN107878239A/en
Publication of CN107878239A publication Critical patent/CN107878239A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides a kind of dynamic lithium battery management system, including:Lithium battery group, its by several lithium battery groups into；Sub- management system, it is electrically connected with the single lithium battery, and for monitoring the working condition of lithium battery, it includes current detecting submodule, voltage detecting submodule, battery voltage-stablizer, broken-circuit controller and temperature adjustment module；Main management system, for receiving the detection information of sub- management system, and the working condition of lithium battery group is managed, it includes voltage monitoring module, current detection module；Temperature detecting module and main voltage-stablizer.The sub- management system of the present invention and the setting of main management system, realize the multi-layer management of single lithium battery and battery pack, the setting of battery voltage-stablizer overcomes the otherness between each lithium battery, main voltage-stablizer makes the output voltage of lithium battery group boost as the rated voltage of motor, there is provided stable and suitable magnitude of voltage.

Description

A kind of dynamic lithium battery management system
Technical field
The present invention relates to technical field of battery management, specially a kind of dynamic lithium battery management system.
Background technology
Battery management system, cell management system of electric automobile (BMS) are connection vehicle mounted dynamic battery and electric automobile Important tie, its major function include：Battery physical parameter monitors in real time；Battery status is estimated；Inline diagnosis and early warning；Fill, Electric discharge controls with preliminary filling；Balanced management and heat management etc..
China Patent Publication No. is that a kind of charging and discharging lithium battery that " CN103928958A " is provided manages circuit and lithium battery Management system, including lithium battery, control module, main switch module, current limiting switch module, sampling resistor and short-circuit detecting mould Block；Wherein, main switch module is connected to the output end of capacitive load, the input connection lithium of capacitive load with current limiting switch module altogether The positive pole of battery；Main switch module, current limiting switch module and short-circuit detecting module are connected to the first end of sampling resistor altogether, sampling The negative pole of the second end connection lithium battery of resistance；Control module be also connected with main switch module, current limiting switch module, lithium battery and Short-circuit detecting module, detected or controlled.In the prior art, lithium battery management system is used for lithium battery group, but in lithium When battery pack is damaged, more because single lithium battery short circuit causes series connection group breaking, whole lithium battery group electric discharge is now disconnected Circuit is unnecessary, at the same to electric automobile be continuing with and later maintenance causes very big inconvenience.
China Patent Publication No. is a kind of charging and discharging lithium battery management system that " CN102916456A " is provided, and lithium battery is Single lithium battery, the system include charging and discharging lithium battery management module, lithium battery voltage Cross prevention module, lithium battery electric discharge Overcurrent protection module and boost module.The charging and discharging lithium battery management system and method that this application provides, realize single-lithium-battery The application management in pond, overcome the series connection of multisection lithium battery in the prior art and cause otherness between each lithium battery.Above-mentioned application It is also contemplated that battery, under different operating temperatures, it is inputted and power output has certain limitations, meanwhile, electric automobile institute The rated voltage and power of the motor used are inconsistent, and single battery boosting output, which differs, surely meets making for motor With requiring, also need to adjust the boost module in this multiple application, bring certain inconvenience, while each lithium battery is risen Pressure, increases the loss of energy, reduces the endurance of battery pack, a kind of dynamic lithium battery management system provided by the invention It can manage single lithium battery and battery pack simultaneously.
The content of the invention
It is an object of the invention to provide a kind of dynamic lithium battery management system, to solve what is proposed in above-mentioned background technology Problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of dynamic lithium battery management system, including:
Lithium battery group, its by several lithium battery groups into；
Sub- management system, it is electrically connected with the single lithium battery, and for monitoring the working condition of lithium battery, it is wrapped Include：For detecting the current detecting submodule of lithium battery discharge current size；For detecting the electricity of lithium battery discharge voltage size Press detection sub-module；For making the battery voltage-stablizer of lithium battery output voltage stabilization；For disconnecting charging and discharging lithium battery loop Broken-circuit controller and the temperature adjustment module for adjusting lithium battery operating temperature；
Main management system, it is electrically connected with sub- management system, for receiving the detection information of sub- management system, and manages The working condition of lithium battery group, it includes：
Voltage monitoring module, it is used to set the minimum discharge voltage threshold value of lithium battery, and is less than in lithium battery discharge voltage Broken-circuit controller disconnecting circuit is controlled during minimum discharge voltage threshold value, the voltage monitoring module is additionally provided with rated voltage detection mould Block, the rated voltage detection module are electrically connected with motor, the rated voltage of the work for detecting motor；
Current detection module, it connects with lithium battery group, for detecting lithium battery group discharge current size and setting lithium electricity Pond highest discharging current threshold, and control broken-circuit controller to disconnect when lithium battery discharge current is higher than highest discharging current threshold Circuit；
Temperature detecting module, it is used to detect the temperature inside and outside lithium battery group；And
Main voltage-stablizer, it is electrically connected with main management system, and the output voltage stabilization for making lithium battery group is motor Rated voltage.
Preferably, the temperature detecting module includes being arranged on the inside and outside temperature monitor of lithium battery group, described Temperature adjustment module includes heating module and radiating module, and the heating module uses Electric radiant Heating Film, and the Electric radiant Heating Film is arranged on lithium Battery lower end, the radiating module use coolant, are provided with coolant pipe between the lithium battery, the coolant is in coolant Pipe inner recirculation flow leads to.
Preferably, the lithium battery group is electrically connected with charge relay, and the charge relay is connected with charger, institute Stating motor and being electrical connected has electric discharge relay.
Preferably, the battery voltage-stablizer uses TPS61230 boost converters, and the main voltage-stablizer uses LT8302 steady Depressor.
Preferably, the current detection module uses Hall current sensor.
Compared with prior art, the beneficial effects of the invention are as follows：
The sub- management system of the present invention is managed to single lithium battery working condition, and main management system carries out pipe to battery pack Reason, realizes the multi-layer management of single lithium battery and battery pack, and temperature adjustment module makes battery maintain suitable work temperature Degree, reduces influence of the temperature to battery performance；Current detecting submodule and voltage detecting submodule detect single lithium battery Discharge current and discharge voltage, the discharge loop of single lithium battery, nothing are disconnected by broken-circuit controller when discharge current is excessive The discharge loop of whole lithium battery group need to be disconnected, use is more convenient and reliable, when some cell discharge voltage is less than regular picture During voltage, output voltage is reached the magnitude of voltage of normal battery operation requirement by battery voltage-stablizer, overcome each lithium battery it Between otherness.Voltage monitoring module controls main voltage-stablizer, main voltage stabilizing according to the rated voltage of the work of the motor detected Device makes the rated voltage that the output voltage boosting voltage stabilizing of lithium battery group is motor, there is provided stable and suitable magnitude of voltage.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sub- management system structural representation of the present invention；
Fig. 3 is main management system's structural representation of the present invention；
Fig. 4 is the temperature adjustment module structural representation of the present invention；
Fig. 5 is the main voltage regulator circuit figure of the present invention；
Fig. 6 is the battery voltage regulator circuit figure of the present invention.
In figure：1 lithium battery, 2 coolant pipes and 3 Electric radiant Heating Films.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Fig. 1-6 are referred to, the present invention provides a kind of technical scheme：
A kind of dynamic lithium battery management system, including lithium battery group, sub- management system and main management system.
Lithium battery group, it is made up of several lithium batteries 1, and the lithium battery uses the 18650 type lithiums commonly used in electronic product Ion battery, its nominal voltage are 3.7V.
Sub- management system, it is electrically connected with single lithium battery 1, for monitoring the working condition of lithium battery 1.Son management system System includes current detecting submodule, voltage detecting submodule, battery voltage-stablizer, broken-circuit controller and temperature adjustment module.Electric current Detection sub-module detects the discharge current size of lithium battery 1 with lithium battery 1；Voltage detecting submodule detection lithium in parallel with lithium battery 1 The discharge voltage size of battery 1；Battery voltage-stablizer is used to make the output voltage stabilization of lithium battery 1；Broken-circuit controller is used to disconnect lithium electricity The charging and discharging circuit of pond 1；Temperature adjustment module is used to adjust the operating temperature of lithium battery 1.
Main management system, it is electrically connected with sub- management system, for receiving the detection information of sub- management system, and manages The working condition of lithium battery group, it includes voltage monitoring module, current detection module, temperature detecting module and main voltage-stablizer.
Voltage monitoring module is used to set the minimum discharge voltage threshold value of lithium battery 1, is set as 3.2V in the present embodiment, and The discharge voltage of lithium battery 1 controls broken-circuit controller disconnecting circuit when being less than minimum discharge voltage threshold value, prevents battery is crossed from putting damage Battery, reduce battery life.Voltage monitoring module is additionally provided with rated voltage detection module, rated voltage detection module and motor It is electrically connected with, the rated voltage of the work for detecting motor, the motor used due to existing electric automobile is simultaneously differed Cause, rated voltage detection module examines the rated voltage of motor, transfers data to main voltage-stablizer automatically, and main voltage-stablizer is automatic Output voltage is adjusted to rated voltage, reduces the time of setting.Current detection module uses Hall current sensor, itself and lithium Battery pack is connected, for detecting lithium battery group discharge current size and the setting highest discharging current threshold of lithium battery 1, when detecting When lithium battery group discharge current exceedes highest discharging current threshold, the electric discharge electricity of starting current detection sub-module detection lithium battery 1 Stream, detect to control broken-circuit controller disconnecting circuit by sub- management system when some electric current of lithium battery 1 is too high, reduce single electricity Influence of the pond to whole battery pack.
Temperature detecting module, it is used to detect the temperature inside and outside lithium battery group, and for battery under different operating temperatures, its is defeated Enter and had certain limitations with power output, then need to control battery in most suitable operating temperature.Temperature detecting module includes The inside and outside temperature monitor of lithium battery group is arranged on, as shown in figure 4, temperature adjustment module includes heating module and radiating Module, heating module use Electric radiant Heating Film 3, and Electric radiant Heating Film is arranged on the lower end of lithium battery 1, can individually adjust the temperature of lithium battery 1.Radiating Module uses coolant, and coolant pipe 2 is provided between lithium battery 1, and coolant is led in the inner recirculation flow of coolant pipe 2, reduces lithium electricity Bulk temperature in pond.
Sub- management system is managed to the working condition of single lithium battery 1, and main management system is managed to battery pack, real Showing the multi-layer management of single lithium battery 1 and battery pack, temperature adjustment module makes battery pack maintain suitable operating temperature, Reduce influence of the temperature to battery performance；Current detecting submodule and voltage detecting submodule detect putting for single lithium battery 1 Electric current and discharge voltage, the discharge loop of single lithium battery 1 is disconnected by broken-circuit controller when discharge current is excessive, without The discharge loop of whole lithium battery group is disconnected, use is more convenient and reliable, when some cell discharge voltage is less than regular picture electricity During pressure, output voltage is reached the magnitude of voltage of normal battery operation requirement by battery voltage-stablizer, overcome between each lithium battery Otherness.Voltage monitoring module controls main voltage-stablizer, main voltage-stablizer according to the rated voltage of the work of the motor detected The output voltage boosting voltage stabilizing for making lithium battery group is the rated voltage of motor, there is provided stable and suitable magnitude of voltage.
Lithium battery group is electrically connected with charge relay, and charge relay is connected with charger, and motor, which is electrical connected, to be had Discharge relay, when voltage monitoring module and current detection module detect the state for overcharging or crossing and put, can turn off charging Relay or electric discharge relay, prevent lithium battery group from being damaged because by overcharge and overdischarge.
As shown in Figure 5 and Figure 6, battery voltage-stablizer uses TPS61230 boost converters, with the electric discharge of lithium battery 1, lithium The voltage of battery 1 also declines therewith, simultaneously because the otherness between lithium battery 1, can cause the electric discharge between lithium battery 1 uneven Weighing apparatus, the minimum discharge voltage threshold value of lithium battery 1 is set as 3.2V in the present embodiment, TPS61230 boost converter energy in the present embodiment Input voltage 3V~5V is boosted into 5V, meets the discharge curve of lithium battery 1.Main voltage-stablizer uses LT8302 voltage-stablizers, implements 4V~42V can be inputted and is converted to 48V outputs, even if several lithium batteries 1 break down, broken-circuit controller by main voltage-stablizer in example Its power circuit is disconnected, can also meet electric motor normal working voltage.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (5)

  1. A kind of 1. dynamic lithium battery management system, it is characterised in that including:
    Lithium battery group, it is made up of several lithium batteries (1)；
    Sub- management system, it is electrically connected with the single lithium battery (1), and for monitoring the working condition of lithium battery (1), it is wrapped Include：For detecting the current detecting submodule of lithium battery (1) discharge current size；It is big for detecting lithium battery (1) discharge voltage Small voltage detecting submodule；For making the battery voltage-stablizer of lithium battery (1) output voltage stabilization；For disconnecting lithium battery (1) The broken-circuit controller of charging and discharging circuit and the temperature adjustment module for adjusting lithium battery (1) operating temperature；
    Main management system, it is electrically connected with sub- management system, for receiving the detection information of sub- management system, and manages lithium electricity The working condition of pond group, it includes：
    Voltage monitoring module, it is used to set the minimum discharge voltage threshold value of lithium battery (1), and low in lithium battery (1) discharge voltage Broken-circuit controller disconnecting circuit is controlled when minimum discharge voltage threshold value, the voltage monitoring module is additionally provided with rated voltage detection Module, the rated voltage detection module are electrically connected with motor, the rated voltage of the work for detecting motor；
    Current detection module, it connects with lithium battery group, for detecting lithium battery group discharge current size and setting lithium battery (1) Highest discharging current threshold, and control broken-circuit controller to break when lithium battery (1) discharge current is higher than highest discharging current threshold Open circuit；
    Temperature detecting module, it is used to detect the temperature inside and outside lithium battery group；And
    Main voltage-stablizer, it is electrically connected with main management system, and the output voltage stabilization for making lithium battery group is the volume of motor Determine voltage.
  2. A kind of 2. dynamic lithium battery management system according to claim 1, it is characterised in that：The temperature detecting module bag Include and be arranged on the inside and outside temperature monitor of lithium battery group, the temperature adjustment module includes heating module and radiating mould Block, the heating module use Electric radiant Heating Film (3), and the Electric radiant Heating Film is arranged on lithium battery (1) lower end, and the radiating module is using cold But liquid, coolant pipe (2) is provided between the lithium battery (1), the coolant is led in coolant pipe (2) inner recirculation flow.
  3. A kind of 3. dynamic lithium battery management system according to claim 1, it is characterised in that：The lithium battery group electrically connects Charge relay is connected to, the charge relay is connected with charger, and the motor, which is electrical connected, electric discharge relay.
  4. A kind of 4. dynamic lithium battery management system according to claim 1, it is characterised in that：The battery voltage-stablizer uses TPS61230 boost converters, the main voltage-stablizer use LT8302 voltage-stablizers.
  5. A kind of 5. dynamic lithium battery management system according to claim 1, it is characterised in that：The current detection module is adopted Use Hall current sensor.
CN201711173249.2A 2017-11-22 2017-11-22 A kind of dynamic lithium battery management system Withdrawn CN107878239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711173249.2A CN107878239A (en) 2017-11-22 2017-11-22 A kind of dynamic lithium battery management system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711173249.2A CN107878239A (en) 2017-11-22 2017-11-22 A kind of dynamic lithium battery management system

Publications (1)

Publication Number Publication Date
CN107878239A true CN107878239A (en) 2018-04-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109786599A (en) * 2018-12-29 2019-05-21 华为数字技术（苏州）有限公司 A kind of energy-storage system
CN114172241A (en) * 2021-12-06 2022-03-11 北京安达维尔民用航空技术有限公司 Standby power supply system for airborne comprehensive backup electronic instrument system
CN114824516A (en) * 2022-03-29 2022-07-29 珠海极海半导体有限公司 Battery management system and SOC correction method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109786599A (en) * 2018-12-29 2019-05-21 华为数字技术（苏州）有限公司 A kind of energy-storage system
US11581588B2 (en) 2018-12-29 2023-02-14 Huawei Digital Power Technologies Co., Ltd. Energy storage system
CN114172241A (en) * 2021-12-06 2022-03-11 北京安达维尔民用航空技术有限公司 Standby power supply system for airborne comprehensive backup electronic instrument system
CN114172241B (en) * 2021-12-06 2024-02-02 北京安达维尔民用航空技术有限公司 Standby power supply system for airborne comprehensive backup electronic instrument system
CN114824516A (en) * 2022-03-29 2022-07-29 珠海极海半导体有限公司 Battery management system and SOC correction method thereof
CN114824516B (en) * 2022-03-29 2023-10-27 珠海极海半导体有限公司 Battery management system and SOC correction method thereof

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