CN105226768B - The equalization methods and intelligent battery of a kind of intelligent battery - Google Patents
The equalization methods and intelligent battery of a kind of intelligent battery Download PDFInfo
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- CN105226768B CN105226768B CN201510737095.XA CN201510737095A CN105226768B CN 105226768 B CN105226768 B CN 105226768B CN 201510737095 A CN201510737095 A CN 201510737095A CN 105226768 B CN105226768 B CN 105226768B
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Abstract
The present invention discloses the equalization methods and intelligent battery of a kind of intelligent battery, is related to cell art, to solve the problems, such as that the passive time for balance of intelligent battery is long and passive portfolio effect difference.The equalization methods of the intelligent battery include：Obtain the working condition of intelligent battery；When intelligent battery is in external off working state, the battery core capacity of each economize on electricity core is obtained, and obtains minimum battery core capacity, minimum battery core capacity is battery core capacity minimum in all battery cores；The battery core capacity of each battery core and the capacity difference of minimum battery core capacity are calculated respectively, determine target battery core, target battery core is more than the battery core of predetermined threshold value for the capacity difference of battery core capacity and minimum battery core capacity, according to the balanced cycle pre-set, control targe battery core carries out periodic discharge, until the capacity difference of the battery core capacity of target battery core and minimum battery core capacity is less than or equal to predetermined threshold value.The equalization methods of intelligent battery provided by the invention are used to carry out in passive balanced scene intelligent battery.
Description
Technical field
The present invention relates to the equalization methods and intelligent battery of cell art, more particularly to a kind of intelligent battery.
Background technology
At present, developing rapidly with battery technology, lithium battery are also more and more applied to the fields such as automobile, model plane,
Because the voltage of single lithium battery is relatively low, therefore the intelligence being usually in series in the field such as automobile, model plane using multisection lithium battery
Battery, each section lithium battery is all as the economize on electricity core in intelligent battery, as shown in figure 1, intelligent battery is by battery core 1, the and of battery core 2
Battery core 3 is composed in series.The capacity of the more piece battery core of intelligent battery is often unequal, and the capacity of intelligent battery foreign work depends on
The minimum battery core of capacitance in intelligent battery, in order that intelligent battery can give full play to performance, it is necessary to take measures, make
It is equal to obtain the capacitance of the core that often economizes on electricity in intelligent battery, the side of the capacitance due to being not directly measured to obtain battery core at this stage
Method, therefore obtain the capacitance of battery core often through the voltage of measurement battery core.
In the prior art, when to intelligent battery charge or discharge, implement passive equilibrium, i.e., in charge or discharge,
By the part electricity release of the battery core of voltage in intelligent battery higher (i.e. capacitance is higher), make its with voltage in intelligent battery compared with
The voltage of the battery core of low (i.e. capacitance is relatively low) tends to be equal.But due to the euqalizing current in passive equilibrium, (i.e. voltage is higher
The release current that uses of battery core release electricity) be about 100mA, and charging current or discharge current are often euqalizing current
Tens times arrive hundred times, euqalizing current almost can be ignored, and it is long that this results in passive time for balance, and passive balanced
Effect is poor.
The content of the invention
It is an object of the invention to provide a kind of equalization methods of intelligent battery and intelligent battery, for reducing intelligent battery
Passive time for balance, improve the passive portfolio effect of intelligent battery.
To achieve these goals, the present invention provides following technical scheme：
On the one hand, the invention provides a kind of equalization methods of intelligent battery, the intelligent battery to include the more piece of series connection
Battery core；The equalization methods of the intelligent battery include：
The working condition of the intelligent battery is obtained, the working condition includes foreign work state and external inoperative shape
State；
When the intelligent battery is in external off working state, the battery core capacity of each economize on electricity core is obtained, and is obtained most
Small battery core capacity, the minimum battery core capacity are battery core capacity minimum in all battery cores in the intelligent battery；
The capacity difference of the battery core capacity and the minimum battery core capacity of each section battery core is calculated respectively, determines target electricity
Core, the target battery core are more than the battery core of the predetermined threshold value for the capacity difference of battery core capacity and the minimum battery core capacity；
According to the balanced cycle pre-set, the target battery core is controlled to carry out periodic discharge, until target electricity
The capacity difference of the battery core capacity of core and the minimum battery core capacity is less than or equal to predetermined threshold value, and the balanced cycle includes putting
Electric period and rest and reorganization period, the target battery core are discharged in the discharge time section, are stopped in the rest and reorganization period
Only discharge.
On the other hand, the invention provides a kind of intelligent battery, the intelligent battery to include the more piece battery core of series connection；It is described
Intelligent battery also includes battery balanced module and microcontroller；The microcontroller is connected with the battery balanced module, and with
At least one section battery core connection of series connection；The battery balanced module is connected with battery core described in the more piece of series connection respectively；
The microcontroller is used for the working condition for obtaining the intelligent battery, and the working condition includes foreign work shape
State and external off working state；It is additionally operable to, when the intelligent battery is in external off working state, notify described battery balanced
Module obtains the battery core capacity of each section battery core；
The battery balanced module is used for the battery core capacity for obtaining each section battery core, and notifies that the microcontroller is every
The battery core capacity of the one section battery core；
The microcontroller is additionally operable to the battery core capacity according to each section battery core, obtains minimum battery core capacity, described
Minimum battery core capacity is battery core capacity minimum in all battery cores in the intelligent battery；It is additionally operable to calculate each section institute respectively
The battery core capacity of battery core and the capacity difference of the minimum battery core capacity are stated, determines target battery core, the target battery core is battery core
The capacity difference of capacity and the minimum battery core capacity is more than the battery core of the predetermined threshold value；It is additionally operable to notify described battery balanced
Module controls the target battery core periodic discharge, until the battery core of the target battery core according to the balanced cycle pre-set
The capacity difference of capacity and the minimum battery core capacity is less than or equal to the predetermined threshold value, when the balanced cycle includes electric discharge
Between section and rest and reorganize the period, the target battery core discharged in the discharge time section, stops putting in the rest and reorganization period
Electricity；
The battery balanced module is used for the notice according to the microcontroller, controls the target battery core to carry out periodically
Electric discharge.
In the equalization methods and intelligent battery of a kind of intelligent battery provided by the invention, when intelligent battery is in external non-work
When making state, the minimum battery core capacity in the battery core of intelligent battery is obtained, and obtain the appearance of battery core capacity and minimum battery core capacity
The target battery core that difference is more than predetermined threshold value is measured, control targe battery core according to the balanced cycle pre-set periodically put
Electricity, until the capacity difference of the battery core capacity of target battery core and minimum battery core capacity is less than or equal to predetermined threshold value；With existing skill
Passive balanced method is carried out in art when intelligent battery carries out charge or discharge to compare, the present invention is in external in intelligent battery
During off working state, equilibrium is carried out, in external off working state, the external charging current of intelligent battery or discharge current approach
0, equilibrium is now carried out, euqalizing current will not be influenceed by charging current or discharge current substantially, can quickly finish intelligence
The passive equilibrium of energy battery, the passive balanced time spent is reduced, and improve the passive portfolio effect of intelligent battery.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram for the battery core connected in intelligent battery in the prior art；
Fig. 2 is the flow chart of the equalization methods of intelligent battery in the embodiment of the present invention one；
Fig. 3 is the structure example schematic diagram of the intelligent battery in the embodiment of the present invention one to embodiment three；
Fig. 4 is the flow chart of the equalization methods of intelligent battery in the embodiment of the present invention two；
Fig. 5 is the flow chart one of the equalization methods of intelligent battery in the embodiment of the present invention three；
Fig. 6 is the flowchart 2 of the equalization methods of intelligent battery in the embodiment of the present invention three；
Fig. 7 is the structural representation of the intelligent battery in the embodiment of the present invention four；
Fig. 8 is the structural representation of the intelligent battery in the embodiment of the present invention five；
Fig. 9 is the structural representation one of the intelligent battery in the embodiment of the present invention six；
Figure 10 is the structural representation two of the intelligent battery in the embodiment of the present invention six；
Figure 11 is the structural representation of the intelligent battery in the embodiment of the present invention seven.
Embodiment
In order to further illustrate the equalization methods of intelligent battery provided in an embodiment of the present invention and intelligent battery, with reference to
Figure of description is described in detail.
Embodiment one
Referring to Fig. 2, the equalization methods of intelligent battery provided in an embodiment of the present invention, applied to more economize on electricitys including series connection
The intelligent battery of core, the equalization methods of the intelligent battery include：
Step 101, the working condition of intelligent battery is obtained；Wherein, working condition include foreign work state and externally it is non-
Working condition, the working condition for obtaining intelligent battery can be specifically the output states of active obtaining or detection intelligent battery, or
The actively offer of state or intelligent battery is switched on-off between active obtaining or detection intelligent battery and external circuit
The output state of itself, or intelligent battery actively provide the state that switches on-off between intelligent battery and external circuit, may be used also
To be the working condition for the electronic equipment that direct detection is provided with intelligent battery, so as to indirectly obtain the work shape of intelligent battery
State, such as the working condition of electronic equipment include open state or holding state or off-mode or charged state.
Specifically, the output current or output voltage of intelligent battery are more than or equal to a certain operation threshold, or intelligence electricity
Switch between pond and external circuit is in connected state, or be provided with intelligent battery electronic equipment be in open state or
During charged state, intelligent battery is in foreign work state；The output current or output voltage of intelligent battery are less than a certain work
Threshold value, either the switch between intelligent battery and external circuit be off or be provided with the electronics of intelligent battery and set
For when being in off-mode or holding state, intelligent battery is in external off working state.Such as：With the intelligence electricity shown in Fig. 3
Exemplified by pond 200, intelligent battery 200 includes battery core 1, battery core 2 and the battery core 3 of series connection, wherein, when switching S2 connections, intelligence electricity
The positive and negative electrode in pond 200 is connected with the positive pole P+ and negative pole P- of external circuit, and the electronic equipment for being provided with intelligent battery 200 is in
Open state；When switching S2 disconnections, the negative pole of intelligent battery 200 and the negative pole P- of external circuit disconnect, and are provided with intelligent electricity
The electronic equipment in pond 200 is in shutdown or holding state.Switch S1 can trigger microcontroller 202 and start, so as to trigger switch
S2 connect or close, when the electronic equipment for being provided with intelligent battery 200 be in open state, if detect switch S1 by by
Under, moment for disconnecting after switch S1 is pressed, the level of microcontroller 202 will jump to high level (such as power supply by 0
VCC magnitude of voltage), the controlling switch S2 of microcontroller 202 disconnects, and the positive pole and negative pole of intelligent battery 200 externally power off, that is,
Say, the positive pole and negative pole of intelligent battery 200 and the positive pole P+ of external circuit and negative pole P- disconnect, and intelligent battery 200 enters shutdown
Or holding state, but should be noted that the control of microcontroller 202 keeps the internal circuit of intelligent battery 200 (such as battery balanced
Module 201, microcontroller 202, respectively economize on electricity core and the battery balanced module 201 of connection and the circuit of each economize on electricity core and element etc.)
With power supply VCC connection, the internal circuit of intelligent battery 200 remains in that working condition, that is to say, that intelligent battery
200 are in external off working state.If the controlling switch S2 of microcontroller 202 is connected, the positive pole and negative pole of intelligent battery 200 are external
It is powered, that is to say, that the positive pole and negative pole of intelligent battery 200 turn on the positive pole P+ of external circuit and negative pole P-, intelligent battery
200 enter open state, and intelligent battery 200 is in foreign work state.
Step 102, when intelligent battery is in external off working state, the battery core capacity of each economize on electricity core is obtained, and is obtained
To minimum battery core capacity；Wherein, minimum battery core capacity is battery core capacity minimum in all battery cores in intelligent battery.Specifically,
The voltage or electric current for the pin that can be connected by measurement with each economize on electricity core, by the way that the battery core voltage of each economize on electricity core is calculated,
Further according to the battery core voltage of each economize on electricity core, the battery core capacity of each economize on electricity core is calculated, that is to say, that each core that economizes on electricity can be used
Battery core voltage represents the battery core capacity of each economize on electricity core, and battery core voltage is higher, and battery core capacity is bigger, and minimum battery core capacity is corresponding
Minimum battery core voltage, i.e., minimum battery core voltage are battery core voltage minimum in all battery cores in intelligent battery, therefore, can first be obtained
The battery core voltage of each economize on electricity core is taken, obtains minimum battery core voltage, then minimum battery core is calculated by minimum battery core voltage and held
Amount.Illustrated below with the intelligent battery 200 shown in Fig. 3, intelligent battery 200 includes battery core 1, battery core 2 and the electricity of series connection
Core 3, specifically, microcontroller 202 can pass through SCL (Serial Clock Line, serial time clock line) and SDA (Serial
Data Line, serial data line) send instruction acquisition to battery balanced module 201 and respectively economize on electricity the battery core voltage of core, it is battery balanced
After module 201 receives the instruction of the transmission of microcontroller 202, measurement pin IO1, IO2 and IO3 voltage, and these three are drawn
The voltage of pin is sent to microcontroller 202, and microcontroller 202 calculates battery core 1, the and of battery core 2 according to the voltage of these three pins
The battery core voltage of battery core 3, and according to the battery core voltage of battery core 1, battery core 2 and battery core 3, calculate battery core 1, battery core 2 and battery core 3
Battery core capacity.For example the battery core voltage of battery core 1 is 4000mV, the battery core voltage of battery core 2 is 3800mV, the battery core voltage of battery core 3
For 3810mV, then minimum battery core voltage is the battery core voltage 3800mV of battery core 2, that is to say, that minimum battery core capacity is battery core 2
Battery core capacity, because the technology that battery core capacity is calculated according to battery core voltage is more ripe, specific calculating is not repeated herein
Process.
Step 103, the capacity difference of the battery core capacity and minimum battery core capacity of each economize on electricity core is calculated respectively, determines target electricity
Core；Wherein, target battery core is more than the battery core of predetermined threshold value for the capacity difference of battery core capacity and minimum battery core capacity.It is worth mentioning
, the joint number of target battery core is unlimited herein, can be a section or more piece, as long as meeting battery core capacity and minimum electricity
The battery core that the capacity difference of core capacity is more than in the intelligent battery of this condition of predetermined threshold value is target battery core.Specifically, can
To represent battery core capacity by battery core voltage, therefore when the battery core voltage and the voltage difference of minimum battery core voltage that measure certain battery core
During more than predetermined voltage threshold, the battery core is target battery core, and predetermined voltage threshold is corresponding with predetermined threshold value.
Step 104, periodic discharge is carried out according to the balanced cycle pre-set, control targe battery core, until target electricity
The capacity difference of the battery core capacity of core and minimum battery core capacity is less than or equal to predetermined threshold value；Wherein, the balanced cycle includes electric discharge
Period and rest and reorganization period, target battery core are discharged in discharge time section, and resting and reorganizing, the period stops electric discharge.Due to target
Battery core carries out continual electric discharge for a long time, and the battery core of target battery core is being obtained by measurement parameter, and by the parameter of measurement
During capacity, larger error can be produced, so as to which the battery core capacity after the electric discharge of target battery core and minimum battery core can not accurately be judged
Whether the capacity difference of capacity is less than or equal to predetermined threshold value, therefore the battery core capacity in target battery core is higher, and discharge time is longer
In the case of, the balanced cycle is pre-set, target battery core is discharged in the discharge time section in the balanced cycle, in equilibrium
Target battery core is stopped discharging in the rest and reorganization period in cycle；When the discharge time section arrival in next balanced cycle,
Target battery core is discharged again, when the period of resting and reorganizing arrives, stops discharging to target battery core again, successively class
Push away, until the capacity difference of the battery core capacity of target battery core and minimum battery core capacity is less than or equal to predetermined threshold value, discharge time
The duration of section can be set according to the demand of the electronic equipment to being provided with intelligent battery, for example set the duration of discharge time section
For 100 milliseconds, the influence brought is calculated to battery core cubic content measurement so as to eliminate electric discharge for a long time as far as possible.Specifically, intelligent battery
In each economize on electricity core be all connected with equalizing circuit, if battery core needs to be discharged, control the equalizing circuit that is connected with battery core to lead
It is logical so that the battery core for needing to be discharged is discharged.Specifically, battery core capacity can be represented by battery core voltage, therefore walk
Rapid 104 are specifically as follows, and according to the balanced cycle pre-set, control targe battery core carries out periodic discharge, until target electricity
The capacity difference of the battery core voltage of core and minimum battery core voltage is less than or equal to predetermined voltage threshold, such as, the battery core electricity of battery core 1
Press as 4000mV, the battery core voltage of battery core 2 is 3800mV, and the battery core voltage of battery core 3 is 3810mV, then minimum battery core voltage is electricity
The battery core voltage 3800mV of core 2, if predetermined voltage threshold is 20mV, then the battery core voltage of battery core 1 and minimum battery core is calculated
The voltage difference of voltage is 200mV, and the voltage difference of the battery core voltage of battery core 3 and minimum battery core voltage is 10mV, due to 200mV
More than 20mV, then battery core 1 is target battery core, and 10mV is less than 20mV, then battery core 3 is not target battery core, and therefore, battery core 1 is carried out
Electric discharge, until the voltage difference of the battery core voltage of battery core 1 and minimum battery core voltage 3800mV is less than or equal to predetermined voltage threshold
20mV.It should be noted that the method due to not can be measured that battery core capacity directly at this stage, it is therefore desirable to pass through measurement
Other specification, by the way that battery core capacity is calculated, the present invention includes but is not limited to by measuring battery core voltage, so as to obtain battery core
The method of capacity, the method that other can obtain battery core capacity are also within the scope of the present invention.
Specifically, illustrated by taking the intelligent battery 200 shown in Fig. 3 as an example, such as, the battery core capacity of battery core 2 is minimum
Battery core capacity, battery core 1 are target battery core, and battery core 2 and battery core 3 are not target battery cores, and microcontroller 202 can be to battery balanced mould
Block 201 sends instruction, and battery balanced module 201 controls equalizing circuit conducting, battery balanced module 201 corresponding to battery core 1 to receive
To after the instruction, pin IO1 is arranged to high level, so as to turn on metal-oxide-semiconductor (field-effect transistor) Q1, makes battery core 1, metal-oxide-semiconductor
Q1 and resistance R1 forms closed-loop path, and battery core 1 is discharged by resistance R1；Battery core 2 and battery core 3 are not target battery core, electricity
Pin IO2 and IO3 are arranged to low level by pond balance module 201, so as to block metal-oxide-semiconductor Q2 and Q3, battery core 2, metal-oxide-semiconductor Q2 and electricity
Resistance R2 will not form closed-loop path, and battery core 3, metal-oxide-semiconductor Q3 and resistance R3 will not also form closed-loop path, and battery core 2 and battery core 3 are not entered
Row electric discharge.When the capacity difference of the battery core capacity of all battery cores in intelligent battery 200 and minimum battery core capacity is respectively less than or is equal to
Can be specifically the capacity difference for working as the battery core voltage of all battery cores and minimum battery core voltage in intelligent battery 200 during predetermined threshold value
Value is respectively less than or during equal to predetermined voltage threshold, and microcontroller 202 can control microcontroller 202 and power supply VCC to disconnect,
Close the internal circuit of intelligent battery 200.
It should be noted that the use of the equalization methods of intelligent battery provided in an embodiment of the present invention is not limited to such as Fig. 3
Shown intelligent battery 200, the intelligent battery of the equalization methods of all intelligent batteries being that by the embodiment of the present invention
Structure is belonged in the scope of protection of the invention.
A kind of equalization methods of intelligent battery provided by the invention, when intelligent battery is in external off working state, obtain
Minimum battery core capacity into the battery core of intelligent battery, and the capacity difference for obtaining battery core capacity and minimum battery core capacity is more than in advance
If the target battery core of threshold value, control targe battery core carries out periodic discharge according to the balanced cycle pre-set, until target electricity
The capacity difference of the battery core capacity of core and minimum battery core capacity is less than or equal to predetermined threshold value；With in the prior art in intelligent battery
Passive balanced method is carried out when carrying out charge or discharge to compare, it is of the invention when intelligent battery is in external off working state,
Equilibrium is carried out, in external off working state, the external charging current of intelligent battery or discharge current are now carried out equal close to 0
Weighing apparatus, euqalizing current will not be influenceed by charging current or discharge current substantially, can quickly finish the passive of intelligent battery
Equilibrium, shorten the passive balanced time spent, and improve the passive portfolio effect of intelligent battery.Moreover, target battery core is according to pre-
The balanced cycle first set carries out periodic discharge, additionally it is possible to eliminates electric discharge for a long time and calculates the shadow brought to battery core cubic content measurement
Ring, further improve the passive portfolio effect of intelligent battery.
Embodiment two
Referring to Fig. 4, above-mentioned steps 104 can also be refined as step 1041- steps 1043, step 1041- steps 1043
Particular content it is as follows：
Step 1041, the euqalizing current that target battery core is discharged is obtained；Specifically, can be in first balanced cycle
When discharging target battery core, measurement obtains the euqalizing current that target battery core is discharged；Or intelligent battery is set in itself
The euqalizing current that battery core is discharged, directly obtains euqalizing current from the data storage of intelligent battery.It should be noted that
Here euqalizing current refers to the size of euqalizing current.
Step 1042, according to the capacity difference of the battery core capacity of target battery core and minimum battery core capacity, and euqalizing current
With discharge time section, obtain making the battery core capacity of target battery core be less than or equal to default threshold with the capacity difference of minimum battery core capacity
It is worth the number N in the balanced cycle needed.
Step 1043, after N number of balanced cycle, control targe battery core stops electric discharge；Target battery core is by N number of equal
Weighing after the electric discharge in cycle, the capacity difference of its battery core capacity and minimum battery core capacity is already less than or equal to predetermined threshold value, therefore,
Target battery core stops electric discharge.
It should be noted that in embodiments of the present invention, it is necessary to detect the mesh after discharging after the electric discharge of target battery core terminates
Whether the capacity difference of the battery core capacity and minimum battery core capacity of marking battery core is more than predetermined threshold value, can specifically be discharged by detecting
Whether the voltage difference of the battery core voltage of target battery core afterwards and minimum battery core voltage is more than predetermined voltage threshold to realize, if putting
The capacity difference of the battery core capacity of target battery core after electricity and minimum battery core capacity is still more than predetermined threshold value, then also needs to control
Target battery core after electric discharge continues to discharge；If the capacity difference of the battery core capacity of the target battery core after electric discharge and minimum battery core capacity
Less than or equal to predetermined threshold value, then the target battery core after discharging no longer meets the definition of target battery core, therefore the target after discharging is electric
Core need not be further continued for being discharged.
The embodiment of the present invention avoids by periodically being discharged target battery core and target battery core continuous discharge occurs
The problem of overlong time, the accuracy of the measurement to battery core capacity is ensure that, so as to further increase the passive of intelligent battery
Balanced effect.
Embodiment three
Referring to Fig. 5, when the quantity of target battery core is more than or equal to two, in order to avoid two adjacent program mark battery cores of connecting
Discharge simultaneously and produce the situation of interference mutually, step 104 can also be refined as step 1044, and the particular content of step 1044 is such as
Under：
Step 1044, two adjacent program mark battery cores are controlled to be alternately carried out periodic discharge, until the electricity of target battery core
The capacity difference of core capacity and minimum battery core capacity is less than or equal to predetermined threshold value；Wherein, the battery core in intelligent battery is according to string
Connection form connects, if two adjacent economize on electricity cores are target battery core, if two adjacent program mark battery cores are discharged simultaneously, and adjacent two
It may be influenced each other between program mark battery core, in order to eliminate this influence, two adjacent programs are controlled in the embodiment of the present invention
Mark battery core is alternately carried out periodic discharge, i.e., is not discharged in the same period, that is to say, that when two adjacent program mark battery cores
When program mark battery core therein carries out periodic discharge, another program mark battery core stops electric discharge.For example intelligent battery includes four
The battery core of series connection is saved, four economize on electricity cores are respectively battery core 1, battery core 2, battery core 3 and battery core 4, and the one end of battery core 1 connects the outer of intelligent battery
The positive pole P+ of portion's circuit, the other end connect battery core 2 one end, battery core 2 the other end connection battery core 3 one end, battery core 3 it is another
One end of end connection battery core 4, the negative pole P- of the external circuit of the other end connection intelligent battery of battery core 4, wherein, by each economize on electricity
The contrast of the battery core capacity of core, it is battery core 1 and battery core 2 to obtain target battery core, then controls battery core 1 to carry out the cycle in the period tl
Property electric discharge, control battery core 2 periodic discharge, period T1 and the non-overlapping parts of period T2 are carried out in period T2.
Specifically, referring to Fig. 6, when the quantity of target battery core is more than or equal to two, step 1044 can also be refined as walking
Rapid 1051 and step 1052, the particular content of step 1051 and step 1052 is as follows：
Step 1051, two program mark battery cores of arbitrary neighborhood are respectively allocated to different electric discharge battery core groups；Wherein, each
Electric discharge battery core group includes an at least program mark battery core.Specifically, can be by all battery cores in intelligent battery according to potential height
It is numbered, can be numbered from high to low according to potential, can also be numbered from low to high according to potential, if two program
It is adjacent to mark the numbering of battery core, then shows that two program mark battery cores are adjacent, two adjacent program mark battery cores is distributed to different electric discharges
Battery core group, such as, intelligent battery includes seven economize on electricity cores of series connection, numbers respectively 1~battery core of battery core from low to high according to potential
7, wherein, 1~battery core of battery core 6 is target battery core, therefore can be distributed battery core 1, battery core 3 and battery core 5 to electric discharge battery core group A, will
Battery core 2, battery core 4 and the distribution of battery core 6 extremely electric discharge battery core group B.
Step 1052, different electric discharge battery core groups is controlled to carry out periodic discharge in the different periods, until target electricity
The capacity difference of the battery core capacity of core and minimum battery core capacity is less than or equal to predetermined threshold value；Different electric discharge battery core groups are in difference
Period electric discharge, so as to avoid two program mark battery cores of arbitrary neighborhood while discharge, such as, in step 1051 illustrated example
In, battery core 1, battery core 3 and the distribution of battery core 5 to electric discharge battery core group A, battery core 2, battery core 4 and the distribution of battery core 6 to electric discharge battery core group B, then
Battery core group A discharge in the periodic discharge of period T1, electric discharge battery core group B in the periodic discharge of period T2, period T1 and when
Between the non-overlapping parts of section T2.
It should be noted that, it is necessary to the electric discharge electricity after electric discharge after the target battery core in battery core group of discharging is discharged
Electric discharge battery core in core group is detected, the capacity difference of the battery core capacity and minimum battery core capacity of the target battery core after detection electric discharge
Whether value is more than predetermined threshold value, can specifically pass through the battery core voltage for detecting the target battery core after discharging and minimum battery core voltage
Whether voltage difference, which is more than predetermined voltage threshold, is realized, if the battery core capacity of the target battery core after being discharged in electric discharge battery core group with
The capacity difference of minimum battery core capacity is more than predetermined threshold value, then stays in the target battery core in electric discharge battery core group, if electric discharge battery core
The battery core capacity of target battery core after being discharged in group is less than or equal to predetermined threshold value with the capacity difference of minimum battery core capacity, then will
Target battery core after the electric discharge removes electric discharge battery core group, and the target battery core that control is discharged in battery core group is discharged again, by that analogy,
Until the battery core capacity of all battery cores in intelligent battery is less than or equal to predetermined threshold value with the capacity difference of minimum battery core capacity.
The embodiment of the present invention avoids two adjacent programs by controlling two adjacent program mark battery cores alternating discharge at times
Mark battery core interferes with each other when discharging simultaneously, so as to improve the passive balanced portfolio effect of intelligent battery.
Example IV
Referring to Fig. 7, the embodiments of the invention provide a kind of intelligent battery 200, intelligent battery 200 includes the more piece of series connection
Battery core, battery balanced module 201 and microcontroller 202；Wherein, microcontroller 202 is connected with battery balanced module 201, and with
At least one economize on electricity core connection of series connection, battery balanced module 201 is connected with the more piece battery core of series connection respectively, specifically, battery is equal
Weighing apparatus module 201 can be connected by equalizing circuit with battery core；Battery balanced module 201 can also be with detection voltage, detection
Electric current and the power management chip comprising equalizing circuit, and be connected by the pin of chip with battery core.
Wherein, microcontroller 202 is used for the working condition for obtaining intelligent battery 200, and working condition includes foreign work shape
State and external off working state；It is additionally operable to, when intelligent battery 200 is in external off working state, notify battery balanced module
201 obtain the battery core capacity of each economize on electricity core；
Battery balanced module 201 is used for the battery core capacity for obtaining each economize on electricity core, and notifies 202 each economize on electricity of microcontroller
The battery core capacity of core；
Microcontroller 202 is used for the battery core capacity according to each economize on electricity core, obtains minimum battery core capacity, minimum battery core capacity
For battery core capacity minimum in all battery cores in intelligent battery；It is additionally operable to calculate the battery core capacity and minimum electricity of each economize on electricity core respectively
The capacity difference of core capacity, determines target battery core, and target battery core is more than for the capacity difference of battery core capacity and minimum battery core capacity
The battery core of predetermined threshold value；It is additionally operable to notify battery balanced module 201 according to the balanced cycle pre-set, control targe battery core week
Phase property is discharged, until the capacity difference of the battery core capacity of target battery core and minimum battery core capacity is less than or equal to predetermined threshold value, institute
Stating the balanced cycle includes discharge time section and rests and reorganizes the period, and the target battery core is discharged in the discharge time section,
The rest and reorganization period stops electric discharge；Specifically, microcontroller 202 can notify battery balanced module using clock signal
Discharge time section and rest and reorganization period in 201 balanced cycles, such as, clock signal corresponding to discharge time section is arranged to high
Level signal, the clock signal corresponding to the period that will rest and reorganize are arranged to low level signal；
Battery balanced module 201 is used for the notice according to the microcontroller 202, and control targe battery core periodically put
Electricity.
A kind of intelligent battery 200 provided by the invention, when intelligent battery 200 is in external off working state, obtain intelligence
Minimum battery core capacity in the battery core of energy battery 200, and the capacity difference for obtaining battery core capacity and minimum battery core capacity is more than in advance
If the target battery core of threshold value, control targe battery core carries out periodic discharge according to the balanced cycle pre-set, until target electricity
The capacity difference of the battery core capacity of core and minimum battery core capacity is less than or equal to predetermined threshold value；With in the prior art in intelligent battery
Passive balanced method is carried out when carrying out charge or discharge to compare, it is of the invention when intelligent battery is in external off working state,
Equilibrium is carried out, in external off working state, the external charging current of intelligent battery or discharge current are now carried out equal close to 0
Weighing apparatus, euqalizing current will not be influenceed by charging current or discharge current substantially, can quickly finish the passive of intelligent battery
Equilibrium, shorten the passive balanced time spent, and improve the passive portfolio effect of intelligent battery.
Embodiment five
Referring to Fig. 8, further, battery balanced module 201 includes electric current acquiring unit 2011 and stop control unit
2012, microcontroller 202 includes the notification unit 2022 of computation of Period unit 2021 and first；
Wherein, electric current acquiring unit 2011 is used to obtain the euqalizing current that target battery core is discharged；
Computation of Period unit 2021 is used for the capacity difference of the battery core capacity and minimum battery core capacity according to target battery core, with
And euqalizing current and discharge time section, the capacity difference of the battery core capacity and minimum battery core capacity that obtain target battery core are less than or waited
In the number N in the balanced cycle that predetermined threshold value needs；
First notification unit 2022 is used to notify stop control unit 2012 after N number of balanced cycle, control targe
Battery core stops electric discharge；
Stop control unit 2012 is used for the notice according to the first notification unit 2022, and control targe battery core stops electric discharge.
Embodiment six
Referring to Fig. 9, specifically, the battery balanced module 201 in intelligent battery 200 includes control unit 2013, micro-control
Device 202 processed includes the second notification unit 2023；
Wherein, the second notification unit 2023 is used to, when the quantity of target battery core is more than or equal to two, notify control unit
Two adjacent program mark battery cores of 2013 controls are alternately carried out periodic discharge；Specifically, the second notification unit 2023 can profit
Control unit 2013 is notified to control two adjacent program mark battery cores to be alternately carried out periodic discharge with clock signal, such as,
Second notification unit 2023 generates two clock signals, and two clock signals are corresponding with two adjacent program mark battery cores respectively, if
Two clock signals inverting clock signal each other is put, so as to realize that notice control unit 2013 controls two adjacent program mark battery cores
It is alternately carried out periodic discharge.
Control unit 2013 is used for the notice according to the second notification unit 2023, controls two adjacent program mark battery cores to replace
Ground carries out periodic discharge.
Referring to Fig. 10, further, control unit 2013 includes control of discharge subelement 2013a, and microcontroller 202 wraps
Include allocation unit 2024 and third notice unit 2025；
Wherein, allocation unit 2024 is used to two program mark battery cores of arbitrary neighborhood being respectively allocated to different electric discharge battery cores
Group, each battery core group of discharging include an at least program mark battery core；
Third notice unit 2025 is used to notify control of discharge subelement 2013a to control different electric discharge battery core groups in difference
Period discharged；
Control of discharge subelement 2013a is used for the notice according to third notice unit 2025, controls different electric discharge battery cores
Group carries out periodic discharge in the different periods.
It is not limited to utilize this mode of clock signal, other energy it should be noted that control targe battery core carries out electric discharge
Enough reach the structure of method that control targe battery core discharged as desired and intelligent battery also in the protection model of the present invention
In enclosing.
Embodiment seven
Figure 11 is referred to, in addition, the battery balanced module 201 in intelligent battery 200 can also include control of discharge unit
2014, microcontroller 202 also includes the notification unit 2027 of detection unit 2026 and the 4th；
Wherein, detection unit 2026 is used for appearance of the battery core capacity with minimum battery core capacity for detecting the target battery core after discharging
Whether amount difference is more than predetermined threshold value；
4th notification unit 2027 is used for the capacity of the battery core capacity and minimum battery core capacity of target battery core after electric discharge
When difference is more than predetermined threshold value, notice control of discharge unit 2014 controls the target battery core after electric discharge to discharge again；
Control of discharge unit 2014 is used for the notice according to the 4th notification unit 2027, and the target battery core after control electric discharge is again
It is secondary to be discharged.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for equipment or
For device embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.
In the description of above-mentioned embodiment, specific features, structure, material or feature can be in any one or more
Combined in an appropriate manner in individual embodiment or example.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of equalization methods of intelligent battery, the intelligent battery includes the more piece battery core of series connection, it is characterised in that the intelligence
The equalization methods of energy battery include：
The working condition of the intelligent battery is obtained, the working condition includes foreign work state and external off working state；
When the intelligent battery is in external off working state, the battery core capacity of each economize on electricity core is obtained, and obtains minimum electricity
Core capacity, the minimum battery core capacity are battery core capacity minimum in all battery cores in the intelligent battery；
The capacity difference of the battery core capacity and the minimum battery core capacity of each section battery core is calculated respectively, determines target battery core,
The target battery core is more than the battery core of predetermined threshold value for the capacity difference of battery core capacity and the minimum battery core capacity；
According to the balanced cycle pre-set, the target battery core is controlled to carry out periodic discharge, until the target battery core
The capacity difference of battery core capacity and the minimum battery core capacity is less than or equal to predetermined threshold value, when the balanced cycle includes electric discharge
Between section and rest and reorganize the period, the target battery core discharged in the discharge time section, stops putting in the rest and reorganization period
Electricity；The duration of the discharge time section is set according to the demand of the electronic equipment to being provided with intelligent battery；
According to the balanced cycle pre-set, the step of controlling the target battery core to carry out periodic discharge, includes：
The euqalizing current that the target battery core is discharged is obtained from the data storage of the intelligent battery；
According to the capacity difference of the battery core capacity of the target battery core and the minimum battery core capacity, and the euqalizing current and
The discharge time section, obtain making the battery core capacity of the target battery core be less than with the capacity difference of the minimum battery core capacity or
The number N in the balanced cycle needed equal to predetermined threshold value；
Stop electric discharge after N number of balanced cycle, controlling the target battery core.
2. the equalization methods of intelligent battery according to claim 1, it is characterised in that when the quantity of the target battery core is big
When two, the control target battery core, which carries out periodic discharge, to be included：
Control adjacent two to save the target battery core and be alternately carried out periodic discharge.
3. the equalization methods of intelligent battery according to claim 2, it is characterised in that described in two adjacent sections of the control
Target battery core, which is alternately carried out periodic discharge, to be included：
The two section target battery cores of arbitrary neighborhood are respectively allocated to different electric discharge battery core groups, wherein, battery core of each discharging
Group includes at least one section target battery core；
The different electric discharge battery core groups is controlled to carry out periodic discharge in the different periods.
4. the equalization methods of the intelligent battery according to any one in claim 1-3, it is characterised in that the intelligence electricity
The equalization methods in pond also include：
Whether the battery core capacity of the target battery core after detection electric discharge is more than institute with the capacity difference of the minimum battery core capacity
State predetermined threshold value；
If the capacity difference of the battery core capacity of the target battery core after electric discharge and the minimum battery core capacity is more than described default
Threshold value, then the target battery core after control is discharged are discharged again.
5. a kind of intelligent battery, the intelligent battery includes the more piece battery core of series connection；Characterized in that, the intelligent battery also wraps
Include battery balanced module and microcontroller；The microcontroller is connected with the battery balanced module, and at least one with connecting
Save the battery core connection；The battery balanced module is connected with battery core described in the more piece of series connection respectively；
The microcontroller is used to obtaining the working condition of the intelligent battery, the working condition include foreign work state and
External off working state；It is additionally operable to, when the intelligent battery is in external off working state, notify the battery balanced module
Obtain the battery core capacity of each section battery core；
The battery balanced module is used for the battery core capacity for obtaining each section battery core, and notifies each section of the microcontroller
The battery core capacity of the battery core；
The microcontroller is additionally operable to the battery core capacity according to each section battery core, obtains minimum battery core capacity, the minimum
Battery core capacity is battery core capacity minimum in all battery cores in the intelligent battery；It is additionally operable to calculate each section electricity respectively
The capacity difference of the battery core capacity of core and the minimum battery core capacity, determines target battery core, the target battery core is battery core capacity
It is more than the battery core of predetermined threshold value with the capacity difference of the minimum battery core capacity；Be additionally operable to notify the battery balanced module according to
In the balanced cycle pre-set, the target battery core periodic discharge is controlled, until the battery core capacity of the target battery core and institute
The capacity difference for stating minimum battery core capacity is less than or equal to the predetermined threshold value, and the balanced cycle includes discharge time section and stopped
Whole period, the target battery core are discharged in the discharge time section, stop electric discharge in the rest and reorganization period；
The battery balanced module is used for the notice according to the microcontroller, controls the target battery core periodically put
Electricity；The duration of the discharge time section is set according to the demand of the electronic equipment to being provided with intelligent battery；
The battery balanced module includes electric current acquiring unit and stop control unit, and the microcontroller includes computation of Period list
Member and the first notification unit；
Wherein, the electric current acquiring unit is put for obtaining the target battery core from the data storage of the intelligent battery
The euqalizing current of electricity；
The computation of Period unit is used for the capacity difference of the battery core capacity and the minimum battery core capacity according to the target battery core
Value, and the euqalizing current and the discharge time section, obtain the battery core capacity of the target battery core and the minimum battery core
The capacity difference of capacity is less than or equal to the number N in the balanced cycle that predetermined threshold value needs；
First notification unit is used to notify the stop control unit after N number of balanced cycle, described in control
Target battery core stops electric discharge；
Stop control unit is used for the notice according to first notification unit, controls the target battery core to stop electric discharge.
6. intelligent battery according to claim 5, it is characterised in that the microcontroller includes the second notification unit, institute
Stating battery balanced module includes control unit；
Wherein, second notification unit is used to, when the quantity of the target battery core is more than or equal to two, notify that the control is single
Member controls the two adjacent section target battery cores to be alternately carried out periodic discharge；
Described control unit is used for the notice according to second notification unit, controls adjacent two to save the target battery core alternating
Ground carries out periodic discharge.
7. intelligent battery according to claim 6, it is characterised in that the microcontroller includes allocation unit and threeway
Know unit, described control unit includes control of discharge subelement；
Wherein, the allocation unit is used to the two section target battery cores of arbitrary neighborhood being respectively allocated to different electric discharge battery cores
Group, each electric discharge battery core group include at least one section target battery core；
The third notice unit is used to notify the control of discharge subelement to control the different electric discharge battery core groups in difference
Period carry out periodic discharge；
The control of discharge subelement is used for the notice according to the third notice unit, controls the different electric discharge battery core groups
Periodic discharge is carried out in the different periods.
8. according to the intelligent battery described in any one in claim 5-7, it is characterised in that the microcontroller also includes inspection
Surveying unit and the 4th notification unit, the battery balanced module also includes control of discharge unit；
Wherein, the detection unit is used for the battery core capacity for detecting the target battery core after discharging and the minimum battery core capacity
Capacity difference whether be more than the predetermined threshold value；
4th notification unit is used for the battery core capacity of target battery core after electric discharge and the minimum battery core capacity
When capacity difference is more than the predetermined threshold value, the target battery core after the control of discharge unit control electric discharge is notified to put again
Electricity；
The control of discharge unit is used for the notice according to the 4th notification unit, and the target battery core after control electric discharge is again
It is secondary to be discharged.
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