CN106602638A - Intelligent management system and method for lithium battery pack - Google Patents
Intelligent management system and method for lithium battery pack Download PDFInfo
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- CN106602638A CN106602638A CN201611059909.XA CN201611059909A CN106602638A CN 106602638 A CN106602638 A CN 106602638A CN 201611059909 A CN201611059909 A CN 201611059909A CN 106602638 A CN106602638 A CN 106602638A
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- 238000000034 method Methods 0.000 title claims abstract description 58
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 53
- 238000004891 communication Methods 0.000 claims abstract description 38
- 238000005259 measurement Methods 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 8
- 238000011897 real-time detection Methods 0.000 claims description 5
- 241000196324 Embryophyta Species 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000009897 systematic effect Effects 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
-
- H02J7/0026—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an intelligent management system and a method for a lithium battery pack and relates to the field of batteries. The system is characterized by comprising a central processor for controlling the operation of the system. The central processor is respectively in signal connection with a charging module used for charging batteries, an equalization module for equalizing the charging of the lithium battery pack, a data collecting module used for collecting the data information of the lithium battery pack, an electric energy calculation module used for calculating the battery level according to the collected data information, a data display module used for displaying the battery state data information, and a storage and communication module used for storing the battery data information and getting in communication with a host computer. The system is stable in operation. By means of the system and the method, the battery unbalance problem can be effectively solved. Meanwhile, the battery service efficiency is improved.
Description
Technical field
The present invention relates to field of batteries, especially a kind of intelligent lithium battery pack management system and method.
Background technology
Lithium battery is as with small volume, light weight, voltage is high, power is big, self discharge is few and long service life etc. is excellent
Point, is increasingly becoming the main flow of electrokinetic cell.But as lithium ion battery has obvious non-linear, discordance and time-varying special
Property, thus using when need to carry out certain management.In addition requirement of the lithium battery to discharge and recharge is very high, when occur overcharge,
When overdischarge, excessive discharge current or short circuit, lithium battery temperature can be made to increase, heavy damage lithium battery performance causes electricity
The pond lost of life.When lithium battery is used in series in power-equipment, due between each single lithium battery bulk properties it is inconsistent,
The inconsistent of each section lithium battery charge and discharge can be caused.
During one section penalty, the behavior characteristicss of whole set of cells all can be limited by this battery, reduce integral battery door
Group performance.To enable lithium battery group farthest to play its superior function, increase the service life, it is necessary to which lithium battery is existed
Monitor in real time is carried out during charge and discharge, there is provided overvoltage, balancing energy between excessively stream, temperature protection and battery..
The content of the invention
The present invention goal of the invention be：For above-mentioned problem, there is provided a kind of intelligent lithium battery pack management system
And method, it has working stability, the advantages of efficiently solve the unbalanced problem of battery, improve the service efficiency of battery.
The technical solution used in the present invention is as follows：
A kind of intelligent lithium battery pack management system, it is characterised in that the system includes：For the centre of control system operation
Reason device；The central processing unit respectively signal be connected to for be charged to battery charging module, lithium battery group carried out
The data message pair that the balance module of charge balancing, the data acquisition module of collection lithium battery group data message, basis are collected
Electricity computing module, the data disaply moudle of display battery status data information and storage battery number that battery electric quantity is calculated
It is believed that the storage communication module communicated by breath and host computer.
Further, the data acquisition module includes：Voltage acquisition module, current acquisition module and temperature acquisition mould
Block；The voltage acquisition module, current acquisition module and temperature collect module all signals are connected to central processing unit.
Further, the storage communication module includes：Storage device and transcriber；The storage device storage
Systematic ephemeral data information；Described information conversion equipment includes：Communication interface and transcriber；The communication interface
Can be attached with host computer；Described information conversion equipment can enter row data communication with host computer by communication interface.
Further, the total capacity that the storage device is is 2M；Single supply read and write operation, running voltage be 2.7V ~
3.3V；Operating current is 7mA, and wait electric current is 3 μ A；Clock frequency is 33MHz.
Further, the balance module is：Switching capacity balanced charging device, it includes：It is constant-current constant-voltage convertor, low
Voltage comparator, sequence switch drive circuit, transmission capacitor, variable connector and device for fusing composition；The constant current constant voltage becomes
Parallel operation is parallel to set of cells；The low-voltage comparator signal is connected to constant-current constant-voltage convertor, while and passing through variable connector
Signal is parallel to set of cells；The sequence switch drive circuit signal is connected to variable connector.
A kind of method of the intelligent management system based on lithium battery group, it is characterised in that the method comprising the steps of：
Step 1：System initialization, system bring into operation；
Step 2：Judge the state of set of cells, set of cells is charged, is discharged and management in idle time；
Step 3：If battery is in charged state, control charging module is charged process to battery, in charging process, in real time
Data message that detection is obtained is sent to storage communication module and is carried out by the voltage of detecting system, electric current and temperature data information
Storage, while these data messages are sent to data disaply moudle in real time being shown；
Step 4：If battery is in:Idle condition, the voltage of real-time detecting system, electric current and temperature data information, will detect
To data message be sent to storage communication module stored, while these data messages are sent to data display in real time
Module is shown；
Step 5：If battery is in discharge condition, control charging module carries out discharge process to battery, in discharge process, in real time
Data message that detection is obtained is sent to storage communication module and is carried out by the voltage of detecting system, electric current and temperature data information
Storage, while these data messages are sent to data disaply moudle in real time being shown；
Step 6：Judge whether battery needs to carry out equilibrium treatment, such as judge to need equilibrium treatment to be carried out to battery, then control equal
Weighing apparatus module carries out equilibrium treatment to battery；
Step 7：The electric current of real-time detecting system, voltage and temperature data information, the electricity of battery in computing system, by what is obtained
Electric quantity data information is sent to data disaply moudle and is shown.
Further, the charging module is comprised the following steps to the method that battery is charged：
Step 1：Charge circuit is opened and closed off and in preliminary filling and holding stage, equally changes the size of charging current,
And then realize small current is needed in preliminary filling and hold mode, the performance requirement of high current is needed when charging normal；
Step 2：When being charged to set of cells, external matching constant voltage source charger, the voltage of the constant voltage source
Value U is：U=4.2V × N+ is lost voltage；Wherein N is battery number；
Step 3：The cut-off current for setting battery system is 0.3 times of battery capacity as the normal charge electric current of the lithium battery group, is being entered
Row must first carry out the initialization of system before charging, then carry out batch (-type) charging to battery.
Further, the system is being filled in charging process by each single lithium battery of voltage acquisition module real-time detection
Voltage；Voltage acquisition module is made up of multiple single-pole double-throw switch (SPDT)s, measurement electric capacity, chopper and analog-digital converter；Measurement process
In, single-pole double-throw switch (SPDT) is got to voltage measurement shelves upwards first, and controlled by central processing unit variable connector Kn-1,
Electric capacity is synchronously coupled with each single battery two ends by Kn-2 (n=1,2,3,4,5,6,7), makes electric capacity charge to electric capacity electricity
Voltage of the pressure equal to tested single battery；Variable connector Kn-1, Kn-2 of central processing unit control are then turned off, while closing out
Close, access A/D converter and measure.
Further, when the analog quantity to every batteries is measured, continuous measurement is multiple, then weeds out for the system
Peak and minimum, then remaining measured value is averaged, then the calculation according to voltage, obtains the electricity of battery
Pressure, after the completion of voltage measurement, enters line program, all of cell voltage is ranked up, mark minimum, highest battery, will
The result for obtaining is sent to balance module.
In sum, as a result of above-mentioned technical proposal, the invention has the beneficial effects as follows：It is battery by balance module
Group has played the overall performance of lithium battery group to greatest extent there is provided various protections and balancing energy control.Meanwhile, also ensure
The performance of battery can meet actual demand, and the behavior characteristicss of whole set of cells are no longer influenced by the impact of single battery performance,
The life-span of battery is extended, the performance of set of cells has at utmost been given play to.In addition, also being provided to battery in use
Pressure, balancing energy between excessively stream, temperature protection and battery, it is ensured that the normal operation of battery.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is a kind of system structure diagram of intelligent lithium battery pack management system and method for the present invention.
Fig. 2 is a kind of method flow schematic diagram of intelligent lithium battery pack management system and method for the present invention.
Fig. 3 is a kind of characteristic working curve of the current sensor of intelligent lithium battery pack management system and method for the present invention
Schematic diagram.
Fig. 4 is a kind of batch (-type) mise-a-la-masse method schematic diagram of intelligent lithium battery pack management system and method for the present invention.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine by any way.
This specification（Including any accessory claim, summary）Disclosed in any feature, unless specifically stated otherwise,
Replaced by other equivalent or alternative features with similar purpose.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
It is a kind of intelligent lithium battery pack management system of the present invention there is provided Fig. 3 in the embodiment of the present invention 1., system structure
As shown in figure 1, the characteristic working curve schematic diagram of current sensor is as shown in Figure 3.：
A kind of intelligent lithium battery pack management system, it is characterised in that the system includes：For the centre of control system operation
Reason device；The central processing unit respectively signal be connected to for be charged to battery charging module, lithium battery group carried out
The data message pair that the balance module of charge balancing, the data acquisition module of collection lithium battery group data message, basis are collected
Electricity computing module, the data disaply moudle of display battery status data information and storage battery number that battery electric quantity is calculated
It is believed that the storage communication module communicated by breath and host computer.
Further, the data acquisition module includes：Voltage acquisition module, current acquisition module and temperature acquisition mould
Block；The voltage acquisition module, current acquisition module and temperature collect module all signals are connected to central processing unit.
Further, the storage communication module includes：Storage device and transcriber；The storage device storage
Systematic ephemeral data information；Described information conversion equipment includes：Communication interface and transcriber；The communication interface
Can be attached with host computer；Described information conversion equipment can enter row data communication with host computer by communication interface.
Further, the total capacity that the storage device is is 2M；Single supply read and write operation, running voltage be 2.7V ~
3.3V；Operating current is 7mA, and wait electric current is 3 μ A；Clock frequency is 33MHz.
Further, the balance module is：Switching capacity balanced charging device, it includes：It is constant-current constant-voltage convertor, low
Voltage comparator, sequence switch drive circuit, transmission capacitor, variable connector and device for fusing composition；The constant current constant voltage becomes
Parallel operation is parallel to set of cells；The low-voltage comparator signal is connected to constant-current constant-voltage convertor, while and passing through variable connector
Signal is parallel to set of cells；The sequence switch drive circuit signal is connected to variable connector.
A kind of method of intelligent lithium battery pack management system, system structure such as Fig. 1 institutes are provided in the embodiment of the present invention 2
Show, method flow schematic diagram is as shown in Fig. 2 the characteristic working curve schematic diagram of current sensor is as shown in figure 3, batch (-type) charges
Method schematic diagram is as shown in Figure 4：
A kind of method of the intelligent management system based on lithium battery group, it is characterised in that the method comprising the steps of：
Step 1：System initialization, system bring into operation；
Step 2：Judge the state of set of cells, set of cells is charged, is discharged and management in idle time；
Step 3：If battery is in charged state, control charging module is charged process to battery, in charging process, in real time
Data message that detection is obtained is sent to storage communication module and is carried out by the voltage of detecting system, electric current and temperature data information
Storage, while these data messages are sent to data disaply moudle in real time being shown；
Step 4：If battery is in:Idle condition, the voltage of real-time detecting system, electric current and temperature data information, will detect
To data message be sent to storage communication module stored, while these data messages are sent to data display in real time
Module is shown；
Step 5：If battery is in discharge condition, control charging module carries out discharge process to battery, in discharge process, in real time
Data message that detection is obtained is sent to storage communication module and is carried out by the voltage of detecting system, electric current and temperature data information
Storage, while these data messages are sent to data disaply moudle in real time being shown；
Step 6：Judge whether battery needs to carry out equilibrium treatment, such as judge to need equilibrium treatment to be carried out to battery, then control equal
Weighing apparatus module carries out equilibrium treatment to battery；
Step 7：The electric current of real-time detecting system, voltage and temperature data information, the electricity of battery in computing system, by what is obtained
Electric quantity data information is sent to data disaply moudle and is shown.
Further, the charging module is comprised the following steps to the method that battery is charged：
Step 1：Charge circuit is opened and closed off and in preliminary filling and holding stage, equally changes the size of charging current,
And then realize small current is needed in preliminary filling and hold mode, the performance requirement of high current is needed when charging normal；
Step 2：When being charged to set of cells, external matching constant voltage source charger, the voltage of the constant voltage source
Value U is：U=4.2V × N+ is lost voltage；Wherein N is battery number；
Step 3：The cut-off current for setting battery system is 0.3 times of battery capacity as the normal charge electric current of the lithium battery group, is being entered
Row must first carry out the initialization of system before charging, then carry out batch (-type) charging to battery.
Further, the system is being filled in charging process by each single lithium battery of voltage acquisition module real-time detection
Voltage；Voltage acquisition module is made up of multiple single-pole double-throw switch (SPDT)s, measurement electric capacity, chopper and analog-digital converter；Measurement process
In, single-pole double-throw switch (SPDT) is got to voltage measurement shelves upwards first, and controlled by central processing unit variable connector Kn-1,
Electric capacity is synchronously coupled with each single battery two ends by Kn-2 (n=1,2,3,4,5,6,7), makes electric capacity charge to electric capacity electricity
Voltage of the pressure equal to tested single battery；Variable connector Kn-1, Kn-2 of central processing unit control are then turned off, while closing out
Close, access A/D converter and measure.
Further, when the analog quantity to every batteries is measured, continuous measurement is multiple, then weeds out for the system
Peak and minimum, then remaining measured value is averaged, then the calculation according to voltage, obtains the electricity of battery
Pressure, after the completion of voltage measurement, enters line program, all of cell voltage is ranked up, mark minimum, highest battery, will
The result for obtaining is sent to balance module.
The data support system and method for a kind of fuel cell, system structure such as Fig. 1 institutes are provided in the embodiment of the present invention 3
Show, method flow schematic diagram is as shown in Fig. 2 the characteristic working curve schematic diagram of current sensor is as shown in figure 3, batch (-type) charges
Method schematic diagram is as shown in Figure 4：
A kind of intelligent lithium battery pack management system, it is characterised in that the system includes：For the centre of control system operation
Reason device；The central processing unit respectively signal be connected to for be charged to battery charging module, lithium battery group carried out
The data message pair that the balance module of charge balancing, the data acquisition module of collection lithium battery group data message, basis are collected
Electricity computing module, the data disaply moudle of display battery status data information and storage battery number that battery electric quantity is calculated
It is believed that the storage communication module communicated by breath and host computer.
Further, the data acquisition module includes：Voltage acquisition module, current acquisition module and temperature acquisition mould
Block；The voltage acquisition module, current acquisition module and temperature collect module all signals are connected to central processing unit.
Further, the storage communication module includes：Storage device and transcriber；The storage device storage
Systematic ephemeral data information；Described information conversion equipment includes：Communication interface and transcriber；The communication interface
Can be attached with host computer；Described information conversion equipment can enter row data communication with host computer by communication interface.
Further, the total capacity that the storage device is is 2M；Single supply read and write operation, running voltage be 2.7V ~
3.3V；Operating current is 7mA, and wait electric current is 3 μ A；Clock frequency is 33MHz.
Further, the balance module is：Switching capacity balanced charging device, it includes：It is constant-current constant-voltage convertor, low
Voltage comparator, sequence switch drive circuit, transmission capacitor, variable connector and device for fusing composition；The constant current constant voltage becomes
Parallel operation is parallel to set of cells；The low-voltage comparator signal is connected to constant-current constant-voltage convertor, while and passing through variable connector
Signal is parallel to set of cells；The sequence switch drive circuit signal is connected to variable connector.
A kind of method of the intelligent management system based on lithium battery group, it is characterised in that the method comprising the steps of：
Step 1：System initialization, system bring into operation；
Step 2：Judge the state of set of cells, set of cells is charged, is discharged and management in idle time；
Step 3：If battery is in charged state, control charging module is charged process to battery, in charging process, in real time
Data message that detection is obtained is sent to storage communication module and is carried out by the voltage of detecting system, electric current and temperature data information
Storage, while these data messages are sent to data disaply moudle in real time being shown；
Step 4：If battery is in:Idle condition, the voltage of real-time detecting system, electric current and temperature data information, will detect
To data message be sent to storage communication module stored, while these data messages are sent to data display in real time
Module is shown；
Step 5：If battery is in discharge condition, control charging module carries out discharge process to battery, in discharge process, in real time
Data message that detection is obtained is sent to storage communication module and is carried out by the voltage of detecting system, electric current and temperature data information
Storage, while these data messages are sent to data disaply moudle in real time being shown；
Step 6：Judge whether battery needs to carry out equilibrium treatment, such as judge to need equilibrium treatment to be carried out to battery, then control equal
Weighing apparatus module carries out equilibrium treatment to battery；
Step 7：The electric current of real-time detecting system, voltage and temperature data information, the electricity of battery in computing system, by what is obtained
Electric quantity data information is sent to data disaply moudle and is shown.
Further, the charging module is comprised the following steps to the method that battery is charged：
Step 1：Charge circuit is opened and closed off and in preliminary filling and holding stage, equally changes the size of charging current,
And then realize small current is needed in preliminary filling and hold mode, the performance requirement of high current is needed when charging normal；
Step 2：When being charged to set of cells, external matching constant voltage source charger, the voltage of the constant voltage source
Value U is：U=4.2V × N+ is lost voltage；Wherein N is battery number；
Step 3：The cut-off current for setting battery system is 0.3 times of battery capacity as the normal charge electric current of the lithium battery group, is being entered
Row must first carry out the initialization of system before charging, then carry out batch (-type) charging to battery.
Further, the system is being filled in charging process by each single lithium battery of voltage acquisition module real-time detection
Voltage；Voltage acquisition module is made up of multiple single-pole double-throw switch (SPDT)s, measurement electric capacity, chopper and analog-digital converter；Measurement process
In, single-pole double-throw switch (SPDT) is got to voltage measurement shelves upwards first, and controlled by central processing unit variable connector Kn-1,
Electric capacity is synchronously coupled with each single battery two ends by Kn-2 (n=1,2,3,4,5,6,7), makes electric capacity charge to electric capacity electricity
Voltage of the pressure equal to tested single battery；Variable connector Kn-1, Kn-2 of central processing unit control are then turned off, while closing out
Close, access A/D converter and measure.
Further, when the analog quantity to every batteries is measured, continuous measurement is multiple, then weeds out for the system
Peak and minimum, then remaining measured value is averaged, then the calculation according to voltage, obtains the electricity of battery
Pressure, after the completion of voltage measurement, enters line program, all of cell voltage is ranked up, mark minimum, highest battery, will
The result for obtaining is sent to balance module.
Further, when balance module works, each monomer battery voltage of real-time detection is worked as monomer by battery cell monitoring IC
When the inconsistent voltage of battery reaches certain value, by controlling variable connector come the equalization volume required for controlling.Equalization volume with
Time for balance and euqalizing current have following relation：
;
Wherein, C is equalization volume, and I is euqalizing current, and t is time for balance, wherein I=Ud/R, and Ud is cell voltage value, and R is
Discharge resistance.
The charging current in cell is shunted by resistance R, the higher battery of voltage is consumed energy by resistance R
Draw close to the relatively low battery of voltage.In balancing procedure, euqalizing current Iequ is not constant value, and it will be with battery terminal voltage
Decline and reduce.But due to euqalizing current it is less, typically within 100mA, it can be considered that I is approximately constant,
And the time is equalized by approximate calculation.Such as：It is 0.4Ah that one piece of battery needs capacity in a balanced way, balanced discharge resistance 100
Ω, Ud are 4V, then time for balance is：
；
The invention is not limited in aforesaid specific embodiment.The present invention expands to any new spy for disclosing in this manual
Levy or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (9)
1. a kind of intelligent lithium battery pack management system, it is characterised in that the system includes：For the central authorities of control system operation
Processor；The central processing unit respectively signal be connected to for be charged to battery charging module, lithium battery group entered
The data message that the balance module of row charge balancing, the data acquisition module of collection lithium battery group data message, basis are collected
The electricity computing module calculated by battery electric quantity, the data disaply moudle and storage battery for showing battery status data information
The storage communication module communicated by data message and host computer.
2. intelligent lithium battery pack management system as claimed in claim 1, it is characterised in that the data acquisition module includes：
Voltage acquisition module, current acquisition module and temperature collect module；The voltage acquisition module, current acquisition module and temperature are adopted
Collection module all signals are connected to central processing unit.
3. intelligent lithium battery pack management system as claimed in claim 1 or 2, it is characterised in that the storage communication module bag
Include：Storage device and transcriber；The storage device stores systematic ephemeral data information；Described information converting means
Put including：Communication interface and transcriber；The communication interface can be attached with host computer；Described information converting means
Put and row data communication can be entered with host computer by communication interface.
4. intelligent lithium battery pack management system as claimed in claim 3, it is characterised in that the total capacity that the storage device is
For 2M；Single supply read and write operation, running voltage are 2.7V ~ 3.3V；Operating current is 7mA, and wait electric current is 3 μ A；Clock frequency
Rate is 33MHz.
5. intelligent lithium battery pack management system as claimed in claim 4, it is characterised in that the balance module is：Switch electricity
Hold balanced charging device, it includes：Constant-current constant-voltage convertor, low-voltage comparator, sequence switch drive circuit, transmission electric capacity
Device, variable connector and device for fusing composition；The constant-current constant-voltage convertor is parallel to set of cells；The low-voltage comparator signal
Constant-current constant-voltage convertor is connected to, while and set of cells is parallel to by variable connector signal；The sequence switch drive circuit
Signal is connected to variable connector.
6. a kind of method of the intelligent lithium battery pack management system based on described in one of claim 1 to 5, it is characterised in that institute
The method of stating is comprised the following steps：
Step 1：System initialization, system bring into operation；
Step 2：Judge the state of set of cells, set of cells is charged, is discharged and management in idle time；
Step 3：If battery is in charged state, control charging module is charged process to battery, in charging process, in real time
Data message that detection is obtained is sent to storage communication module and is carried out by the voltage of detecting system, electric current and temperature data information
Storage, while these data messages are sent to data disaply moudle in real time being shown；
Step 4：If battery is in:Idle condition, the voltage of real-time detecting system, electric current and temperature data information, will detect
To data message be sent to storage communication module stored, while these data messages are sent to data display in real time
Module is shown；
Step 5：If battery is in discharge condition, control charging module carries out discharge process to battery, in discharge process, in real time
Data message that detection is obtained is sent to storage communication module and is carried out by the voltage of detecting system, electric current and temperature data information
Storage, while these data messages are sent to data disaply moudle in real time being shown；
Step 6：Judge whether battery needs to carry out equilibrium treatment, such as judge to need equilibrium treatment to be carried out to battery, then control equal
Weighing apparatus module carries out equilibrium treatment to battery；
Step 7：The electric current of real-time detecting system, voltage and temperature data information, the electricity of battery in computing system, by what is obtained
Electric quantity data information is sent to data disaply moudle and is shown.
7. intelligent lithium battery pack management system as claimed in claim 6, it is characterised in that the charging module is carried out to battery
The method of charging is comprised the following steps：
Step 1：Charge circuit is opened and closed off and in preliminary filling and holding stage, equally changes the size of charging current,
And then realize small current is needed in preliminary filling and hold mode, the performance requirement of high current is needed when charging normal；
Step 2：When being charged to set of cells, external matching constant voltage source charger, the voltage of the constant voltage source
Value U is：U=4.2V × N+ is lost voltage；Wherein N is battery number；
Step 3：The cut-off current for setting battery system is 0.3 times of battery capacity as the normal charge electric current of the lithium battery group, is being entered
Row must first carry out the initialization of system before charging, then carry out batch (-type) charging to battery.
8. intelligent lithium battery pack management system as claimed in claim 7, it is characterised in that the system is being filled in charging process
In pass through each single-lithium-battery cell voltage of voltage acquisition module real-time detection；Voltage acquisition module is by multiple single-pole double-throw switch (SPDT)s, survey
Amount electric capacity, chopper and analog-digital converter composition；In measurement process, single-pole double-throw switch (SPDT) is got to voltage measurement upwards first
Electric capacity is synchronously distinguished by shelves, and variable connector Kn-1, the Kn-2 (n=1,2,3,4,5,6,7) controlled by central processing unit
Each single battery two ends are connected to, make electric capacity charge to voltage of the capacitance voltage equal to tested single battery；It is then turned off centre
Variable connector Kn-1, Kn-2 of reason device control, while closing a switch, accesses A/D converter and measures.
9. intelligent lithium battery pack management system as claimed in claim 6, it is characterised in that the system is to every batteries
When analog quantity is measured, continuous measurement is multiple, then weeds out peak and minimum, then remaining measured value is averaged
Value, then the calculation according to voltage, obtains the voltage of battery, after the completion of voltage measurement, enters line program, to all of electricity
Cell voltage is ranked up, and marks minimum, highest battery, the result for obtaining is sent to balance module.
Priority Applications (1)
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247236A (en) * | 2017-05-19 | 2017-10-13 | 杭州金秋汽车储能科技有限公司 | A kind of lithium battery parameter acquisition system and method |
| CN107947257A (en) * | 2017-11-13 | 2018-04-20 | 苏州工业园区职业技术学院 | A kind of charging intelligent management system of battery |
| CN108054450A (en) * | 2018-01-19 | 2018-05-18 | 东莞市海拓伟电子科技有限公司 | A kind of lithium battery management system |
| CN109273783A (en) * | 2018-09-11 | 2019-01-25 | 众声物联（天津）科技有限公司 | Lithium battery replaces lead-acid battery intelligence BMS framework and application method |
| CN109660005A (en) * | 2019-01-22 | 2019-04-19 | 深圳市金宏电子有限公司 | A kind of lithium battery charging system and method based on solar energy |
| CN109687047A (en) * | 2019-02-20 | 2019-04-26 | 合肥锂能科技有限公司 | A kind of Intelligent redundant lithium battery monitoring system and monitoring method |
| CN109904535A (en) * | 2017-12-08 | 2019-06-18 | 南京德朔实业有限公司 | The acquisition methods of electric power controller, power-supply management system and battery package informatin |
| CN110422078A (en) * | 2018-04-26 | 2019-11-08 | 宁德时代新能源科技股份有限公司 | Electric box and electric quantity acquisition method thereof |
| CN110838742A (en) * | 2019-10-25 | 2020-02-25 | 深圳市道通智能航空技术有限公司 | Charging device, charging system, and charging method |
| CN112968484A (en) * | 2021-02-03 | 2021-06-15 | 宜昌科赛新能源科技有限公司 | Energy balancing method and device for lithium battery |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860056A (en) * | 2010-05-24 | 2010-10-13 | 宁波高新区申特科技有限公司 | Power lithium battery pack balancing and managing system based on Map model |
| CN102447288A (en) * | 2011-12-05 | 2012-05-09 | 三门峡速达交通节能科技有限公司 | Power lithium-ion battery pack intelligent management system specially used for electric automobile |
| CN202333913U (en) * | 2011-12-05 | 2012-07-11 | 三门峡速达交通节能科技有限公司 | Power lithium battery pack intelligent management system special for electric automobile |
| CN103151815A (en) * | 2013-03-18 | 2013-06-12 | 天津大学 | Method for controlling equalizing charge of elementary cell of battery pack |
| CN203151186U (en) * | 2013-04-12 | 2013-08-21 | 深圳市智仁科技有限公司 | Intelligent charging and discharging system for lithium battery and computer |
| CN104505876A (en) * | 2014-12-07 | 2015-04-08 | 北京工业大学 | Capacitive voltage balance system and method for series-connected energy storage system |
-
2016
- 2016-11-28 CN CN201611059909.XA patent/CN106602638A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860056A (en) * | 2010-05-24 | 2010-10-13 | 宁波高新区申特科技有限公司 | Power lithium battery pack balancing and managing system based on Map model |
| CN102447288A (en) * | 2011-12-05 | 2012-05-09 | 三门峡速达交通节能科技有限公司 | Power lithium-ion battery pack intelligent management system specially used for electric automobile |
| CN202333913U (en) * | 2011-12-05 | 2012-07-11 | 三门峡速达交通节能科技有限公司 | Power lithium battery pack intelligent management system special for electric automobile |
| CN103151815A (en) * | 2013-03-18 | 2013-06-12 | 天津大学 | Method for controlling equalizing charge of elementary cell of battery pack |
| CN203151186U (en) * | 2013-04-12 | 2013-08-21 | 深圳市智仁科技有限公司 | Intelligent charging and discharging system for lithium battery and computer |
| CN104505876A (en) * | 2014-12-07 | 2015-04-08 | 北京工业大学 | Capacitive voltage balance system and method for series-connected energy storage system |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247236A (en) * | 2017-05-19 | 2017-10-13 | 杭州金秋汽车储能科技有限公司 | A kind of lithium battery parameter acquisition system and method |
| CN107947257A (en) * | 2017-11-13 | 2018-04-20 | 苏州工业园区职业技术学院 | A kind of charging intelligent management system of battery |
| CN109904535B (en) * | 2017-12-08 | 2024-08-06 | 南京泉峰科技有限公司 | Power management device, power management system, and battery pack information acquisition method |
| CN109904535A (en) * | 2017-12-08 | 2019-06-18 | 南京德朔实业有限公司 | The acquisition methods of electric power controller, power-supply management system and battery package informatin |
| CN108054450A (en) * | 2018-01-19 | 2018-05-18 | 东莞市海拓伟电子科技有限公司 | A kind of lithium battery management system |
| CN110422078A (en) * | 2018-04-26 | 2019-11-08 | 宁德时代新能源科技股份有限公司 | Electric box and electric quantity acquisition method thereof |
| CN110422078B (en) * | 2018-04-26 | 2022-04-08 | 宁德时代新能源科技股份有限公司 | Electric box and electric quantity acquisition method thereof |
| CN109273783A (en) * | 2018-09-11 | 2019-01-25 | 众声物联（天津）科技有限公司 | Lithium battery replaces lead-acid battery intelligence BMS framework and application method |
| CN109273783B (en) * | 2018-09-11 | 2024-01-02 | 众声物联（天津）科技有限公司 | Intelligent BMS (battery management system) framework for replacing lead-acid battery with lithium battery and using method |
| CN109660005A (en) * | 2019-01-22 | 2019-04-19 | 深圳市金宏电子有限公司 | A kind of lithium battery charging system and method based on solar energy |
| CN109687047A (en) * | 2019-02-20 | 2019-04-26 | 合肥锂能科技有限公司 | A kind of Intelligent redundant lithium battery monitoring system and monitoring method |
| CN110838742A (en) * | 2019-10-25 | 2020-02-25 | 深圳市道通智能航空技术有限公司 | Charging device, charging system, and charging method |
| CN112968484A (en) * | 2021-02-03 | 2021-06-15 | 宜昌科赛新能源科技有限公司 | Energy balancing method and device for lithium battery |
| CN117087476A (en) * | 2023-10-16 | 2023-11-21 | 常州尚佳低碳科技有限公司 | Charging method for intelligent quick charging pile of community electric vehicle |
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