CN110011387A - A kind of battery balanced control method, device and balance control system - Google Patents
A kind of battery balanced control method, device and balance control system Download PDFInfo
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- CN110011387A CN110011387A CN201910399271.1A CN201910399271A CN110011387A CN 110011387 A CN110011387 A CN 110011387A CN 201910399271 A CN201910399271 A CN 201910399271A CN 110011387 A CN110011387 A CN 110011387A
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- battery
- battery core
- core group
- temperature
- intelligent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to technical field of battery balancing more particularly to a kind of battery balanced control methods, device and balance control system.This method comprises: judging whether the intelligent battery is charge mode；If so, judging whether the intelligent battery meets equilibrium condition according to the status information of the battery core group by the status information that the control chip in the intelligent battery obtains battery core group in the intelligent battery；If so, the battery balanced control device carries out equilibrium to the intelligent battery.The embodiment saves battery space and weight, and improves the electric voltage equalization precision of battery battery core.
Description
[technical field]
The present invention relates to technical field of battery balancing more particularly to a kind of battery balanced control method, device and battery are equal
Weigh control system.
[background technique]
The consistency of battery core is to restrict one of the biggest obstacle of multi-series lithium battery application at present, and inconsistent battery core can be with
The increase of cycle-index increasingly deteriorates, and safety accident is resulted even in when serious.It would generally will be electric when production
Core matching is consistent, however will lead to the consistency of battery core worse and worse due to temperature difference etc. in use process.
In order to avoid battery with two side terminals variation, commonly a kind of settling mode is to design equalizing circuit in inside battery,
Controlling each economize on electricity core by equalizing circuit can be balanced to unanimously when inconsistent；Another settling mode is that charging external is equal
Weighing apparatus method, for example, during charging in charger to battery balanced, generally by the battery core of each section of real-time monitoring
Then voltage does external Equilibrium again, wherein each economize on electricity core, which is drawn out to port, has one section of wire length, pressure drop production is had when balanced
It is raw.
Inventor has found the relevant technologies in the implementation of the present invention the prior art has at least the following problems: when balanced in battery
It will increase space and the weight of battery；The precision of the conventional read voltage of charging external balanced way is limited to battery core to end
The pressure drop of mouth, to cause the equilibrium result of battery core inaccurate.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of battery balanced control method, device and balance control system,
To solve, the relevant technologies become larger when realizing battery balanced there are battery space and weight and battery core equilibrium result is inaccurate
The technical issues of.
The one aspect of the embodiment of the present invention provides a kind of battery balanced control method, is used for battery balanced control device,
The communication connection of the intelligent battery of the battery balanced control device and unmanned plane, which is characterized in that the described method includes:
Determine that the intelligent battery is in charged state；
The status information of battery core group in the intelligent battery is obtained by the control chip in the intelligent battery, wherein
The control chip and the battery balanced control device communicate to connect, and the status information of the battery core group includes the battery core group
Temperature and the battery core group in two adjacent sections battery core voltage difference；
According to the status information of the battery core group, judge whether the intelligent battery meets equilibrium condition；
If so, the battery balanced control device carries out equilibrium to the intelligent battery.
Optionally, the control chip by the intelligent battery obtains the state of battery core group in the intelligent battery
Information, comprising:
Each economize on electricity in the temperature and the battery core group of the battery core group is obtained by the control chip of the intelligent battery
The voltage of core；
According to the voltage of economize on electricity core each in the battery core group, the voltage of two adjacent sections battery core in the battery core group is obtained
Difference.
Optionally, the control chip by the intelligent battery obtains the state of battery core group in the intelligent battery
Information, comprising:
Two adjacent sections in the temperature and the battery core group of the battery core group is obtained by the control chip of the intelligent battery
The voltage difference of battery core, wherein the voltage difference of two adjacent sections battery core is calculated by the control chip in the battery core group.
Optionally, the equilibrium condition includes the temperature of the battery core group within the scope of default temperature and the battery core group
The voltage difference of middle two adjacent sections battery core is greater than preset trimming threshold, then:
The battery balanced control device carries out equilibrium to the intelligent battery
Discharge operation is carried out to the higher battery core of voltage in two adjacent sections battery core.
Optionally, the battery balanced control device includes microprocessor and the balanced electricity with microprocessor electrical connection
Road, wherein the microprocessor is connect with the control chip communication, and the equalizing circuit is electrically connected with the battery core group, then
This method further include:
During the discharge operation, two adjacent sections battery core in the temperature and the battery core group of the equalizing circuit is obtained
Voltage difference；
Judge whether have at least in the voltage difference of two adjacent sections battery core in the temperature and the battery core group of the equalizing circuit
One satisfaction electric discharge stop condition；
If so, the battery balanced control device stops the discharge operation to the battery core group.
Optionally, it is more than preset value or the battery core group that the electric discharge stop condition, which includes the temperature of the equalizing circuit,
The voltage difference of middle two adjacent sections battery core is not more than the trimming threshold.
Optionally, this method further include:
During the discharge operation, if the temperature of the equalizing circuit is more than preset value:
Heat discharging operation is carried out to the equalizing circuit.
It is optionally, described that heat discharging operation is carried out to the equalizing circuit, comprising:
Heat discharging operation is carried out to the equalizing circuit by radiator.
Optionally, the radiator includes at least one of fan, cooling fin and water cooling tube.
Optionally, the method also includes:
The equilibrium state information of the intelligent battery is shown to user, wherein the equilibrium state information includes the electricity
At least one of in the temperature of the voltage of core group, the temperature of the battery core group and the equalizing circuit.
The other side of the embodiment of the present invention, provides a kind of battery balanced control device, and described device includes: micro process
Device is connect with the control chip communication in UAV Intelligent battery；And
Equalizing circuit, described equalizing circuit one end are electrically connected with the microprocessor, in the other end and the intelligent battery
Battery core group electrical connection；
The microprocessor is used for:
Determine that the intelligent battery is in charged state；
The status information of battery core group in the intelligent battery is obtained by the control chip in the intelligent battery, wherein
The control chip and the battery balanced control device communicate to connect, and the status information of the battery core group includes the battery core group
Temperature and the battery core group in two adjacent sections battery core voltage difference；
According to the status information of the battery core group, judge whether the intelligent battery meets equilibrium condition；
Equilibrium is carried out to the intelligent battery if so, controlling the equalizing circuit.
Optionally, the microprocessor is specifically used for:
By the control chip, the voltage of each economize on electricity core in the temperature and the battery core group of the battery core group is obtained；
According to the voltage of economize on electricity core each in the battery core group, the voltage of two adjacent sections battery core in the battery core group is calculated
Difference.
Optionally, the microprocessor is specifically used for:
By the control chip, the voltage of two adjacent sections battery core in the temperature and the battery core group of the battery core group is obtained
Difference, wherein the voltage difference of two adjacent sections battery core is calculated by the control chip in the battery core group.
Optionally, the equilibrium condition includes the temperature of the battery core group within the scope of default temperature and the battery core group
The voltage difference of middle two adjacent sections battery core is greater than preset trimming threshold, then:
The microprocessor puts the higher battery core of voltage in two adjacent sections battery core for controlling the equalizing circuit
It is electrically operated.
Optionally, which further includes temperature-detecting device, and the temperature-detecting device is electrically connected with the microprocessor,
The temperature-detecting device is used to detect the temperature of the equalizing circuit, then the microprocessor is also used to:
During the discharge operation, the temperature of the equalizing circuit is obtained by the temperature-detecting device and is passed through
The control chip obtains the voltage difference of two adjacent sections battery core in the battery core group；
Judge whether have at least in the voltage difference of two adjacent sections battery core in the temperature and the battery core group of the equalizing circuit
One satisfaction electric discharge stop condition；
If so, controlling the equalizing circuit stopping to the discharge operation of the battery core group.
Optionally, it is more than preset value or the battery core group that the electric discharge stop condition, which includes the temperature of the equalizing circuit,
The voltage difference of middle two adjacent sections battery core is not more than the trimming threshold.
Optionally, which further includes the radiator for carrying out heat discharging operation to the equalizing circuit, the heat dissipation
Device is electrically connected with the microprocessor, when the temperature-detecting device detects that the temperature of the equalizing circuit is more than preset value
When, the microprocessor controls the radiator and carries out heat discharging operation to the equalizing circuit.
Optionally, the radiator includes at least one of fan, cooling fin and water cooling tube.
Optionally, which further includes display screen, and the display screen is electrically connected with the microprocessor, and the display screen is used
In the balancer information for showing the intelligent battery to user, wherein the equilibrium state information includes the battery core group
At least one of in the temperature of voltage, the temperature of the battery core group and the equalizing circuit.
The another aspect of the embodiment of the present invention provides a kind of balance control system, comprising:
Intelligent battery, be set to unmanned plane, for give the unmanned plane power supply, the intelligent battery include control chip and with
The battery core group of the control chip electrical connection；
Power supply is electrically connected with the intelligent battery, for charging to the intelligent battery；And
Battery balanced control device as described in any one of above items, the battery balanced control device is close to described
Power supply setting and with the power electric connection.
In embodiments of the present invention, first determine whether battery is charge mode, if charge mode then obtains in battery
The temperature of portion's battery core obtains the voltage of each economize on electricity core, according to every when the temperature of the battery core is within the scope of default temperature
The voltage of one economize on electricity core obtains the voltage difference of each economize on electricity core, and whether the voltage difference judgement further according to each economize on electricity core currently needs
Battery balanced, if desired equilibrium is carried out, then to the battery core progress discharge operation of battery.Since the embodiment is not needed in battery
Inside carries out equilibrium, and can directly acquire the voltage of inside battery battery core, avoids problem of pressure drop, therefore, the embodiment party
Formula not only saves battery space and weight, and due to avoiding the pressure drop of battery core to port to improve battery battery core
Electric voltage equalization precision.
[Detailed description of the invention]
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is a kind of schematic diagram of battery balanced control system provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic perspective view of unmanned plane provided in an embodiment of the present invention；
Fig. 3 is a kind of circuit diagram of equalizing circuit provided in an embodiment of the present invention；
Fig. 4 is a kind of flow chart of battery balanced control method provided in an embodiment of the present invention.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
It should be noted that each feature in the embodiment of the present invention can be combined with each other, in this hair if do not conflicted
Within bright protection scope.In addition, though having carried out the division of functional module in schematic device, show in flow charts
Logical order, but in some cases, it can be with the sequence in the module division being different from schematic device or flow chart
Execute shown or described step.
The embodiment of the invention provides a kind of balance control system, the balance control system be used for charging when nobody
The intelligent battery of machine carries out Balance route, and so-called Balance route is multiple single battery cores in the battery core group instigated in intelligent battery
Voltage deviation be maintained in expected range, to guarantee that each single battery core normal use is not damaged, to extend
The service life of battery core group in intelligent battery.In one embodiment of this invention, unmanned plane is quadrotor drone.Referring to Fig. 2, nothing
Man-machine 1000 include 200, four horns 300 extended from fuselage 200 of fuselage, the power being respectively installed on each horn 300
Component 400 and intelligent battery (not shown) set on fuselage 200.Diagram unmanned plane 1000 is quadrotor unmanned flight
Device, the quantity of Power Component 400 are four.In other possible embodiments, it is any suitable that unmanned plane 1000 can be other
Unmanned vehicle of type, such as fixed-wing unmanned plane during flying device etc..It is applied to other types unmanned flight in Power Component 400
The quantity of the occasion of device, Power Component 400 can change according to actual needs, and this is not limited by the present invention.
In other possible embodiments, unmanned plane 1000 can also include holder (not shown), which is installed on machine
The bottom of body 200, holder eliminates high-definition digital camera for carrying high-definition digital camera or other photographic devices or other are taken the photograph
As the disturbance that device is subject to, guarantee the steady and audible of the video of camera or the shooting of other photographic devices.
In an embodiment of invention, horn 300 is fixedly connected with fuselage 200, it is preferable that horn 300 and fuselage 200 1
It is body formed.In other possible embodiments, horn 300 can by can relative to fuselage 200 be unfolded or fold in a manner of and machine
Body 200 is connected.For example, horn 300 can be connected by a rotating shaft mechanism with fuselage 200, to realize that horn 300 can be relative to machine
The expansion of body 200 folds.
In one embodiment of this invention, Power Component 400 includes driving device 40 and the spiral shell driven by driving device 40
Paddle component 80 is revolved, propeller component 80 is installed on the output shaft of driving device 40, and propeller component 80 is in driving device 40
The lift for making unmanned plane 1000 fly or thrust are rotated to produce under driving.Driving device 40 can be the electricity of any suitable type
Machine, such as brush motor, brushless motor, direct current generator, stepper motor, AC induction motor etc..The intelligent battery is for nobody
Machine provides power, and driver 40 drives propeller component 80 to rotate.
Referring to Fig. 1, Fig. 1 shows the structural schematic diagram of balance control system 100 in one embodiment of the invention.It is described equal
The control system 100 that weighs includes the intelligent battery 20 and battery balanced control device 30 of power supply 10, unmanned plane.Wherein, power supply 10
It charges for the intelligent battery 20 to the unmanned plane 1000, the power supply 10 is located at outside (nobody of the unmanned plane 1000
Machine 1000 is referring to fig. 2), the intelligent battery 20 and battery balanced control device of unmanned plane can be separately connected by the major loop that charges
30, it is communicated to connect between the intelligent battery 20 and the battery balanced control device 30, so that the battery balanced control
Device 30 can know the status information of intelligent battery 20 in real time.
The power supply 10 specifically can be charger or other DC power supplies etc., and the power supply 10 is used for the intelligence
Charging voltage required for battery 20 provides and electric current.
The intelligent battery 20 is located on the fuselage of the unmanned plane 1000, for providing power to unmanned plane 1000.Institute
The battery core group that intelligent battery 20 includes control chip and is electrically connected with control chip is stated, the battery core group is by multiple single battery core groups
At.Control chip can be communicated based on preset communication protocol with the battery balanced control device 30, can be by the battery core
The status information of group is sent to the battery balanced control device 30, wherein the status information of battery core group includes the interior of battery core group
Portion's temperature, charged state, the data such as voltage difference of the voltage of safe condition and each economize on electricity core or two adjacent sections battery core.
The battery balanced control device 30 includes the micro process connecting with the control chip communication of the intelligent battery 20
Device 31 and the equalizing circuit 32 being electrically connected with the microprocessor 31.Battery balanced control device 30 is desirably integrated into the power supply
In 10 or it is independently positioned at close to the position of the power supply 10.The battery balanced control device 30 is used for the electricity to unmanned plane
Pond 20 carries out Balance route.Microprocessor 31 in battery balanced control device 30 and the control chip in intelligent battery 20 are direct
Communication avoids traditional equalizing circuit not high problem of precision when detecting battery core voltage.Since traditional equalizing circuit is being examined
When surveying battery core voltage, each economize on electricity core is drawn out to port and has one section of wire length, and wire length both ends have a pressure drop generation, equalizing circuit and
The connection of wire length end, reading is the voltage data comprising pressure drop, rather than the virtual voltage data of battery core.
In one embodiment of this invention, the microprocessor 31 specifically can be CPU etc..The microprocessor 31 connects
The power supply 10, the power supply 10 are the microprocessor 31 power supply.The microprocessor 31 be based on preset communication protocol with
The intelligent battery 20 communicates to connect, wherein the preset communication protocol includes I2C, serial ports, HDQ, CAN etc..In this implementation
In example, the microprocessor 31 can communicatedly obtain the status information of the intelligent battery 20.Wherein, status information includes institute
State the electricity of intelligent battery 20, safe condition, charged state, each economize on electricity core in the temperature and battery core group of internal battery core group
The data such as the voltage difference of voltage or two adjacent sections battery core.The microprocessor 31 is electrically connected with the equalizing circuit 32, described
Microprocessor 31 carries out equilibrium to the intelligent battery 20 for controlling the equalizing circuit 32.In charging, the micro process
Device 31 first determines whether the intelligent battery 20 is charge mode.It is filled when the microprocessor 31 determines that intelligent battery 20 is in
When power mode, then the status information of the 20 inside battery core group of intelligent battery can be further obtained.In one embodiment of the invention
In, the status information of the battery core group includes the voltage of two adjacent sections battery core in the temperature and the battery core group of the battery core group
Difference.Then, according to the status information of the battery core group, judge whether the intelligent battery 20 meets equilibrium condition, if intelligence at this time
Energy battery 20 meets equilibrium condition, then microprocessor 31 controls equalizing circuit 32 and carries out equilibrium to intelligent battery 20.
In one embodiment of this invention, the equilibrium condition is the temperature of battery core group within the scope of default temperature, and
The voltage difference of two adjacent sections battery core is greater than preset trimming threshold in the battery core group.Wherein, the preset temperature range refers to
Be meet battery core normal work temperature range, the temperature range can according to specific application scenarios carry out it is customized.
The voltage difference of the two adjacent sections battery core refers to the difference of the voltage of two adjacent sections battery core, can be by by two adjacent economize on electricitys
The voltage of core carries out difference operation and obtains.The voltage difference of two adjacent sections battery core in the battery core group, can be by the intelligent battery
20 control chip passes through the voltage for first obtaining each economize on electricity core, then the difference of the voltage of two adjacent sections battery core is calculated, it
After be sent to the microprocessor 31.It can also first be obtained by the control chip of the intelligent battery 20 each in the battery core group
The voltage of economize on electricity core, is then forwarded to the microprocessor 31, by the microprocessor 31 according to each economize on electricity in the battery core group
The voltage difference of two adjacent sections battery core in the battery core group is calculated in the voltage of core.In one embodiment of this invention, described equal
Weighing apparatus threshold value refers to whether electric voltage equalization threshold value, the electric voltage equalization threshold value currently need to the intelligent battery 20 for measuring
Battery core carry out discharge operation, the specific value of the electric voltage equalization threshold value can according to the relevant parameter of intelligent battery 20 and
Current application environment is determined.It should be noted that obtaining the temperature of the battery core and obtaining the voltage of the battery core
Two processes can carry out simultaneously, alternatively, the voltage for first obtaining the battery core obtains the temperature of the battery core again, not limit herein
The two steps execute sequence.
When intelligent battery 20 meets above-mentioned equilibrium condition, microprocessor 31 sends signal to the equalizing circuit 32, with
It controls the equalizing circuit 32 and equilibrium is carried out to the battery core of the intelligent battery 20.In one embodiment of this invention, described equal
Weighing apparatus operation includes carrying out discharge operation to the higher battery core of voltage in two adjacent sections battery core.The equalizing circuit 32 is to the intelligence
The battery core of energy battery 20 carries out specifically can be economize on electricity core progress higher to voltage in two adjacent sections battery core when discharge operation
Discharge operation, or discharge operation is carried out to the higher more piece battery core of voltage in the economize on electricity core of arbitrary neighborhood two.Pass through the electric discharge
Operation, to guarantee the reaching unanimity property of voltage of the battery core of the intelligent battery 20.In the present embodiment, the equalizing circuit 32 exists
When carrying out discharge operation to battery core, extra electricity is mainly discharged using the mode of resistance heating, certainly, in a particular application
Extra electricity can also be discharged using other modes.
After the discharge operation starts, the microprocessor 31 can periodically read the temperature of the equalizing circuit 32
With the voltage difference of two adjacent sections battery core in the battery core group of the acquisition intelligent battery 20.When both at least one satisfaction is put
When electric stop condition, microprocessor 31 controls the stopping of equalizing circuit 32 to the discharge operation of battery core group.In an implementation of the invention
In example, the electric discharge stop condition includes that the temperature of the equalizing circuit 32 is more than preset temperature threshold or the two adjacent sections
The voltage difference of battery core is not more than (that is, being less than or equal to) described trimming threshold.
In some other embodiment, before judging whether the intelligent battery 20 be charge mode, the micro process
Device 31 also can read the safe condition of the intelligent battery 20, i.e. microprocessor 31 can first judge whether the intelligent battery 20 is sent out
Security alarm is given birth to, if reading whether the intelligent battery 20 is charged state without security alarm.Thus, it is possible to and
The safe condition of intelligent battery 20 described in Shi Faxian, improves the safety of the intelligent battery 20, and avoids unnecessary
Battery balanced operation.
The battery balanced control device 30 further includes temperature-detecting device 34, and the temperature-detecting device 34 connects described
Microprocessor 31 and the equalizing circuit 32.The temperature-detecting device 34 is used to obtain the temperature of the equalizing circuit 32, and
And the temperature is sent to the microprocessor 31.The temperature-detecting device 34 is obtained to the temperature of the equalizing circuit 32
Taking can be periodically.When the temperature of the equalizing circuit 32 is more than preset temperature threshold or the two adjacent sections battery core
Voltage difference when being not more than the trimming threshold, the microprocessor 31, which controls the equalizing circuit 32, to be stopped to the intelligence electricity
The discharge operation of the battery core in pond 20.Wherein, phase is obtained when the temperature for periodically obtaining the equalizing circuit 32 and periodically
Neighbour two economize on electricity core voltage difference when, two periods can define identical, and at the same time temperature collection and voltage difference, the period can
It is customized to be carried out according to specific application environment.Certainly, it obtains the temperature of the equalizing circuit 32 and obtains two adjacent sections battery core
Voltage difference, be also possible to acyclic or nonsynchronous.Due to the equalizing circuit 32 to the intelligent battery 20 into
When row discharge operation, it is to discharge extra electricity by the way of making resistance heating, very high heat can be generated at this time, therefore
It is necessary to the temperature to the equalizing circuit 32 to be monitored, and accident occurs to prevent temperature to be more than early warning temperature.Wherein institute
State the i.e. described early warning temperature of temperature threshold, the temperature threshold can according to the relevant feature parameters of the equalizing circuit 32 come into
Row setting.In the present embodiment, it is monitored by the temperature to equalizing circuit 32, when temperature is more than preset temperature threshold
Stop the discharge operation to intelligent battery 20 in time, to improve the safety of intelligent battery 20.
In some other embodiment, equally referring to Fig. 1, the battery balanced control device 30 further includes radiator
35, the radiator 35 connects the microprocessor 31 and the equalizing circuit 32.Wherein, when the temperature of the equalizing circuit 32
When degree is more than preset temperature threshold, the radiator 35 is used for through preset temprature control method to the equalizing circuit 32
Carry out heat discharging operation.The radiator 35 specifically can be one or more of fan, cooling fin, water-cooling heat radiating device.
Cooled down by the radiator 35 to the equalizing circuit 32, to can guarantee that equalizing circuit 32 continues sex work, is mentioned
The high stability of the battery balanced control device 30 and the safety of the intelligent battery 20.
In some other embodiment, equally referring to Fig. 1, the battery balanced control device 30 further includes display screen
36, the display screen 36 connects the microprocessor 31, the equalizing circuit 32 and the temperature-detecting device 34.It is described aobvious
Display screen 36 is used to show the equilibrium state information of the intelligent battery 20, and the equilibrium state information includes the voltage of the battery core
And temperature, the temperature etc. of the equalizing circuit.User can be facilitated to check the balanced state of battery 20 by the display screen 36,
The relevant information of battery 20 is grasped in time.
In some other embodiment, the battery balanced control device 30 can also include prior-warning device (not in figure
Show), the prior-warning device connects the microprocessor 31, is more than the preset temperature in the temperature of the equalizing circuit 32
Threshold value, or when the intelligent battery 20 is not charged state, early warning can be carried out by the prior-warning device.
In some other embodiment, equally referring to Fig. 1, the battery balanced control device 30 further includes communication isolating
Protection module 33, the communication isolating protection module 33 connect the microprocessor 31 and the intelligent battery 20.The communication
Isolating and protecting module 33 is used to protect the communication link of the battery balanced control device 30 and the intelligent battery 20.In this reality
It applies in example, the battery balanced control device 30 is connected to the intelligent battery 20 by the communication isolating protection module 33,
When the battery balanced control device 30 is communicated with the intelligent battery 20, by the communication isolating protection module 33 to this
Communication between the two is protected, to ensure the communication between the battery balanced control device 30 and the intelligent battery 20
It can go on smoothly.The communication isolating protection module 33 specifically can be ISO1540, ADuM1200 this kind of isolating chip institute structure
At isolation circuit, be also possible to electrostatic protection devices such as ESD etc..
In the present embodiment, the battery balanced control device 30 during the charging process carries out the intelligent battery 20
Weighing apparatus, the battery balanced control device 30 can be an independent device as shown in Figure 2, be also desirably integrated into the electricity
In source 10, or discretely it is present in any suitable position, carries out Balance route for the intelligent battery 20 to unmanned plane,
This is with no restrictions.
In the present embodiment, the battery balanced control device 30, by microprocessor 31 to the battery core of intelligent battery 20
The status information of group, i.e. the voltage difference of the temperature of battery core group and two adjacent sections battery core is judged, in the temperature and the electricity
When the voltage difference of core is all satisfied equilibrium condition, battery balanced control device 30 controls equalizing circuit 32 to intelligence by microprocessor 31
Energy battery 20 carries out equilibrium.The embodiment does not need to save battery space and weight in inside battery progress equilibrium, and
The voltage that inside battery battery core can be directly acquired, avoids problem of pressure drop, improves the electric voltage equalization precision of battery battery core.This
Outside, it can also be monitored by temperature of the temperature-detecting device 34 to equalizing circuit 32, improve battery balanced control device
30 stability and the safety of intelligent battery 20.Since the battery balanced control device 30 is in the intelligent battery to unmanned plane
20 be external equilibrium when carrying out balanced, and with the direct intelligence communication of the intelligent battery 20, many route spaces can be saved,
To be able to satisfy requirement of the unmanned plane to space and weight.
Referring to Fig. 3, Fig. 3 is a kind of circuit diagram of present invention equalizing circuit 32 that wherein an embodiment provides, in Fig. 3
In, the circuit of the circuit of Q37, Q45 left-hand component formed and the right-hand component of Q41, Q49 composition can be regarded into two independences
Circuit, the circuit of left-hand component is used for output pwm signal, and the circuit of right-hand component can regard a switching circuit, wherein
Work as balance1=1, when balance2=0, Q49 conducting, Q41 cut-off, the circuit output low level signal of left-hand component at this time；
Work as balance1=0, when balance2=1, Q49 cut-off, Q41 conducting, the circuit output low level of same left-hand component at this time
Signal；Work as balance1=1, when balance2=1, Q49 conducting, Q41 conducting, the circuit output high level of left-hand component at this time
Signal.The circuit of left-hand component realizes the discharge operation to the battery core of the intelligent battery 20 according to the level signal of output.
It should be noted that the equalizing circuit 32 is not limited in Fig. 3, it can also increase or replace a certain component
To realize the function of the equalizing circuit 32.
It should be noted that the battery balanced control device 30 according to the voltage difference of battery core in addition to determining the need for
Battery 20 is carried out except equilibrium, can also by other characteristic parameters (such as internal resistance, capacity, service life, temperature etc.) come
Determine whether the intelligent battery 20 currently needs equilibrium, to make the features such as the internal resistance of battery, capacity, service life, temperature
Reaching unanimity property of parameter.
Referring to Fig. 4, Fig. 4 is a kind of flow chart of battery balanced control method provided in an embodiment of the present invention, this method
It is executed by above-mentioned battery balanced control device, this method comprises:
Step 101 judges whether the intelligent battery is charge mode.
Wherein, the intelligent battery and the battery balanced control device of execution this method communicate to connect, described battery balanced
Control device obtains the charged state of the intelligent battery from the intelligent battery.
In some other embodiment, before judging whether the intelligent battery be charge mode, the method may be used also
To include, the safe condition of the intelligent battery is read, to judge whether the intelligent battery has occurred security alarm, if do not had
There is security alarm, then reads whether the intelligent battery is charged state.Thus, it is possible to the safe condition of battery is found in time,
The safety of battery is improved, and avoids unnecessary battery balanced operation.
If so, method proceeds to step 102.
Step 102, the status information for obtaining battery core group in the intelligent battery.The status information includes the battery core group
Temperature and the battery core group in two adjacent sections battery core voltage difference.
Wherein, the battery core group includes multiple battery cores.The battery balanced control device for executing this method can be read directly
The status information of battery core group inside the intelligent battery.The voltage difference of the two adjacent sections battery core refers to two adjacent sections battery core
The difference of voltage is obtained and the voltage of two adjacent economize on electricity cores is carried out difference operation.
Step 103, according to the status information of the battery core group, judge whether the intelligent battery meets equilibrium condition.
Wherein, the equilibrium condition refers to, the temperature of the battery core group is within the scope of default temperature；And described adjacent two
The voltage difference of economize on electricity core is greater than preset trimming threshold.The preset temperature range refers to the temperature for meeting battery core normal work
Section is spent, the temperature range can carry out customized according to specific application scenarios.The trimming threshold refers to that voltage is equal
Weigh threshold value, and the specific value of the electric voltage equalization threshold value can be carried out according to the relevant parameter and current application environment of battery
It determines.Judge whether the intelligent battery meets equilibrium condition, that is, judges the temperature of the battery core group whether in preset temperature
In range and whether the voltage difference of the two adjacent sections battery core is greater than preset trimming threshold.
It should be noted that the voltage difference of the temperature of the above-mentioned acquisition battery core group and the acquisition two adjacent sections battery core
Two processes can carry out simultaneously, alternatively, the voltage difference for first obtaining the two adjacent sections battery core obtains the temperature of the battery core group again
Degree, do not limit the two steps herein executes sequence.
If so, method proceeds to step 104.
Step 104, control equalizing circuit carry out discharge operation to the battery core of the intelligent battery.
Wherein, the equalizing circuit specifically can be when the battery core to the intelligent battery carries out discharge operation to described
The higher battery core of voltage carries out discharge operation in two adjacent sections battery core, or higher more to voltage in the economize on electricity core of arbitrary neighborhood two
The core that economizes on electricity carries out discharge operation.By the discharge operation, to guarantee the reaching unanimity property of voltage of the battery core of the intelligent battery.
In the present embodiment, the equalizing circuit is mainly discharged using the mode of resistance heating when carrying out discharge operation to battery core
Extra electricity can also discharge extra electricity certainly using other modes in a particular application.
It should be noted that balanced in addition to being determined the need for carrying out battery according to the voltage difference of two adjacent sections battery core
Except, the intelligent battery can also be determined by other characteristic parameters (such as internal resistance, capacity, service life, temperature etc.)
Currently whether equilibrium is needed, to make reaching unanimity property of the characteristic parameters such as the internal resistance of battery, capacity, service life, temperature.
After discharge operation starts, this method can also include:
The voltage of two adjacent sections battery core inside step 105, the temperature for obtaining the equalizing circuit and the intelligent battery
Difference.
Wherein, the voltage difference of the temperature for obtaining the equalizing circuit and the two adjacent sections battery core can be periodicity
Or it is acyclic.
It is in the voltage difference of two adjacent sections battery core in step 106, the temperature for judging the equalizing circuit and the battery core group
No at least one satisfaction electric discharge stop condition.
Wherein, the electric discharge stop condition includes that the temperature of the equalizing circuit is more than in preset value or the battery core group
The voltage difference of two adjacent sections battery core is not more than (that is, being less than or equal to) described trimming threshold.It can periodically obtain described equal
The temperature of weighing apparatus circuit and the voltage difference for periodically obtaining the two adjacent sections battery core, the period can be according to concrete application ring
Border carry out it is customized, two periods can define it is identical, and at the same time temperature collection and voltage difference.It can also aperiodically obtain
It takes, obtain in real time and periodically send the microprocessor for acquired data, or with other any suitable weeks
Phase property or acyclic mode carry out.
If it is, proceeding to step 107.
Step 107 stops discharge operation to the battery core of the intelligent battery.
Wherein, since the equalizing circuit is when carrying out balanced to the intelligent battery, specific use makes resistance heating
Mode discharges extra electricity, can generate very high heat at this time, it is therefore necessary to carry out to the temperature of the equalizing circuit
To prevent temperature to be more than early warning temperature accident occurs for monitoring, wherein the temperature threshold, that is, early warning temperature, the temperature
Threshold value can be set according to the relevant feature parameters of the equalizing circuit.In the present embodiment, by equalizing circuit
Temperature be monitored, stop in time when temperature is more than preset temperature threshold to battery balanced, to improve battery
Safety.
In some other embodiment, when the temperature of the equalizing circuit is more than preset temperature threshold, the method is also
It include: that heat discharging operation is carried out to the equalizing circuit by preset temprature control method.The preset temprature control method
Including fan, cooling fin further including water cooling method etc. by way of being radiated.Here, passing through preset temperature
Control method carries out heat discharging operation to the equalizing circuit and improves the electricity to can guarantee that equalizing circuit continues sex work
The safety of the stability of pond equalising control device and the intelligent battery.
In some other embodiment, the method also includes: show the equilibrium state information of the intelligent battery, it is described
Equilibrium state information includes but is not limited to the temperature of the voltage of the battery core, temperature and the equalizing circuit.Pass through display institute
The equilibrium state information of intelligent battery is stated so as to facilitate user to check the balanced state of battery, grasps the correlation of battery in time
Information, thus artificially control battery charging and it is battery balanced.
In some other embodiment, the method also includes: it is more than described preset in the temperature of the equalizing circuit
Temperature threshold, or when the intelligent battery is not charged state, given a warning by preset type of alarm.
The embodiment of the invention provides a kind of battery balanced control method, this method does not need to carry out in inside battery equal
Weighing apparatus, saves battery space and weight, and can directly acquire the voltage of inside battery battery core, avoids problem of pressure drop, mention
The high electric voltage equalization precision of battery battery core.In addition, this method also improve battery safety and carry out it is battery balanced
When safety.
It should be noted that battery balanced control device provided in an embodiment of the present invention is gone back in addition to applying on unmanned plane
It can be applied to other equipment, such as electric car etc..
Installation practice described above is only illustrative, wherein the unit as illustrated by the separation member can be with
It is or may not be and be physically separated, component shown as a unit may or may not be physical unit,
Can be in one place, or may be distributed over multiple network units.It can select according to the actual needs wherein
Some or all of the modules achieve the purpose of the solution of this embodiment.
Through the above description of the embodiments, those of ordinary skill in the art can be understood that each embodiment
The mode of general hardware platform can be added to realize by software, naturally it is also possible to realize by hardware.Ordinary skill
Personnel are understood that realize that all or part of the process in above-described embodiment method is can to instruct phase by computer program
The hardware of pass is completed, and the program can be stored in a computer-readable storage medium, which when being executed, can wrap
Include the process of the embodiment such as above-mentioned each method.Wherein, the storage medium can be magnetic disk, CD, read-only memory
(Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；At this
It under the thinking of invention, can also be combined between the technical characteristic in above embodiments or different embodiment, step can be with
It is realized with random order, and there are many other variations of different aspect present invention as described above, for simplicity, they do not have
Have and is provided in details；Although the present invention is described in detail referring to the foregoing embodiments, the ordinary skill people of this field
Member is it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of skill
Art feature is equivalently replaced；And these are modified or replaceed, each reality of the present invention that it does not separate the essence of the corresponding technical solution
Apply the range of a technical solution.
Claims (20)
1. a kind of battery balanced control method is used for battery balanced control device, the battery balanced control device and unmanned plane
Intelligent battery communication connection, which is characterized in that the described method includes:
Determine that the intelligent battery is in charged state；
The status information of battery core group in the intelligent battery is obtained by the control chip in the intelligent battery, wherein described
It controls chip and the battery balanced control device communicates to connect, the status information of the battery core group includes the temperature of the battery core group
The voltage difference of two adjacent sections battery core in degree and the battery core group；
According to the status information of the battery core group, judge whether the intelligent battery meets equilibrium condition；
If so, the battery balanced control device carries out equilibrium to the intelligent battery.
2. the method according to claim 1, wherein the control chip by the intelligent battery obtains
The status information of battery core group in the intelligent battery, comprising:
Each economize on electricity core in the temperature and the battery core group of the battery core group is obtained by the control chip of the intelligent battery
Voltage；
According to the voltage of economize on electricity core each in the battery core group, the voltage difference of two adjacent sections battery core in the battery core group is obtained.
3. the method according to claim 1, wherein the control chip by the intelligent battery obtains
The status information of battery core group in the intelligent battery, comprising:
Two adjacent sections battery core in the temperature and the battery core group of the battery core group is obtained by the control chip of the intelligent battery
Voltage difference, wherein the voltage difference of two adjacent sections battery core is calculated by the control chip in the battery core group.
4. method according to any one of claim 1-3, which is characterized in that the equilibrium condition includes the battery core group
Temperature within the scope of default temperature and in the battery core group voltage difference of two adjacent sections battery core be greater than preset trimming threshold,
Then:
The battery balanced control device carries out equilibrium to the intelligent battery
Discharge operation is carried out to the higher battery core of voltage in two adjacent sections battery core.
5. according to the method described in claim 4, it is characterized in that, the battery balanced control device include microprocessor and with
The equalizing circuit of the microprocessor electrical connection, wherein the microprocessor is connect with the control chip communication, the equilibrium
Circuit is electrically connected with the battery core group, then this method further include:
During the discharge operation, the electricity of two adjacent sections battery core in the temperature and the battery core group of the equalizing circuit is obtained
Pressure difference；
Judge whether there is at least one in the voltage difference of two adjacent sections battery core in the temperature and the battery core group of the equalizing circuit
Meet electric discharge stop condition；
If so, the battery balanced control device stops the discharge operation to the battery core group.
6. according to the method described in claim 5, it is characterized in that, the electric discharge stop condition includes the temperature of the equalizing circuit
Degree is more than that the voltage difference of two adjacent sections battery core in preset value or the battery core group is not more than the trimming threshold.
7. method according to claim 5 or 6, which is characterized in that this method further include:
During the discharge operation, if the temperature of the equalizing circuit is more than preset value:
Heat discharging operation is carried out to the equalizing circuit.
8. the method according to the description of claim 7 is characterized in that described carry out heat discharging operation to the equalizing circuit, comprising:
Heat discharging operation is carried out to the equalizing circuit by radiator.
9. according to the method described in claim 8, it is characterized in that, the radiator includes fan, cooling fin and water cooling tube
At least one of.
10. method according to claim 1 to 9, which is characterized in that the method also includes:
The equilibrium state information of the intelligent battery is shown to user, wherein the equilibrium state information includes the battery core group
Voltage, in the temperature of the battery core group and the temperature of the equalizing circuit at least one of.
11. a kind of battery balanced control device characterized by comprising
Microprocessor is connect with the control chip communication in UAV Intelligent battery；And
Equalizing circuit, described equalizing circuit one end are electrically connected with the microprocessor, the electricity in the other end and the intelligent battery
The electrical connection of core group；
The microprocessor is used for:
Determine that the intelligent battery is in charged state；
The status information of battery core group in the intelligent battery is obtained by the control chip in the intelligent battery, wherein described
It controls chip and the battery balanced control device communicates to connect, the status information of the battery core group includes the temperature of the battery core group
The voltage difference of two adjacent sections battery core in degree and the battery core group；
According to the status information of the battery core group, judge whether the intelligent battery meets equilibrium condition；
Equilibrium is carried out to the intelligent battery if so, controlling the equalizing circuit.
12. device according to claim 11, which is characterized in that the microprocessor is specifically used for:
By the control chip, the voltage of each economize on electricity core in the temperature and the battery core group of the battery core group is obtained；
According to the voltage of economize on electricity core each in the battery core group, the voltage difference of two adjacent sections battery core in the battery core group is calculated.
13. device according to claim 11, which is characterized in that the microprocessor is specifically used for:
By the control chip, the voltage difference of two adjacent sections battery core in the temperature and the battery core group of the battery core group is obtained,
Wherein, the voltage difference of two adjacent sections battery core is calculated by the control chip in the battery core group.
14. device described in any one of 1-13 according to claim 1, which is characterized in that the equilibrium condition includes the electricity
The voltage difference of the temperature of core group two adjacent sections battery core within the scope of default temperature and in the battery core group is greater than preset equilibrium
Threshold value, then:
The microprocessor carries out electric discharge behaviour to the higher battery core of voltage in two adjacent sections battery core for controlling the equalizing circuit
Make.
15. device according to claim 14, which is characterized in that the device further includes temperature-detecting device, the temperature
Detection device is electrically connected with the microprocessor, and the temperature-detecting device is used to detect the temperature of the equalizing circuit, then institute
Microprocessor is stated to be also used to:
During the discharge operation, the temperature of the equalizing circuit is obtained by the temperature-detecting device and by described
Control chip obtains the voltage difference of two adjacent sections battery core in the battery core group,
Judge whether there is at least one in the voltage difference of two adjacent sections battery core in the temperature and the battery core group of the equalizing circuit
Meet electric discharge stop condition；
If so, controlling the equalizing circuit stopping to the discharge operation of the battery core group.
16. device according to claim 15, which is characterized in that the electric discharge stop condition includes the equalizing circuit
Temperature is more than that the voltage difference of two adjacent sections battery core in preset value or the battery core group is not more than the trimming threshold.
17. device according to claim 15 or 16, which is characterized in that the device further includes for the equalizing circuit
The radiator of heat discharging operation is carried out, the radiator is electrically connected with the microprocessor, when the temperature-detecting device is examined
When measuring the temperature of the equalizing circuit more than preset value, the microprocessor controls the radiator to the equalizing circuit
Carry out heat discharging operation.
18. device according to claim 17, which is characterized in that the radiator includes fan, cooling fin and water cooling
At least one of pipe.
19. device described in any one of 1-18 according to claim 1, which is characterized in that the device further includes display screen, described
Display screen is electrically connected with the microprocessor, and the display screen is used to show the balancer letter of the intelligent battery to user
Breath, wherein the equilibrium state information includes the voltage of the battery core group, the temperature of the battery core group and the equalizing circuit
At least one of in temperature.
20. a kind of balance control system characterized by comprising
Intelligent battery, be set to unmanned plane, for give the unmanned plane power supply, the intelligent battery include control chip and with it is described
Control the battery core group of chip electrical connection；
Power supply is electrically connected with the intelligent battery, for charging to the intelligent battery；And
Battery balanced control device as described in any one of claim 11-19, the battery balanced control device is close to institute
State power supply setting and with the power electric connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399271.1A CN110011387A (en) | 2019-05-14 | 2019-05-14 | A kind of battery balanced control method, device and balance control system |
| PCT/CN2020/090270 WO2020228782A1 (en) | 2019-05-14 | 2020-05-14 | Battery equalisation control method and apparatus, and equalisation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399271.1A CN110011387A (en) | 2019-05-14 | 2019-05-14 | A kind of battery balanced control method, device and balance control system |
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| Publication Number | Publication Date |
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| CN110011387A true CN110011387A (en) | 2019-07-12 |
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|---|---|---|---|
| CN201910399271.1A Pending CN110011387A (en) | 2019-05-14 | 2019-05-14 | A kind of battery balanced control method, device and balance control system |
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| Country | Link |
|---|---|
| CN (1) | CN110011387A (en) |
| WO (1) | WO2020228782A1 (en) |
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| WO2020228782A1 (en) * | 2019-05-14 | 2020-11-19 | 深圳市道通智能航空技术有限公司 | Battery equalisation control method and apparatus, and equalisation control system |
| CN112531798A (en) * | 2019-09-18 | 2021-03-19 | 上海度普新能源科技有限公司 | Battery cell balancing method and battery management system |
| CN113875114A (en) * | 2020-01-15 | 2021-12-31 | 深圳市大疆创新科技有限公司 | Battery equalization method and system, battery and movable platform |
| CN114655069A (en) * | 2021-05-21 | 2022-06-24 | 北京新能源汽车股份有限公司 | Power battery control method and device, battery management system and electric automobile |
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| WO2020228782A1 (en) | 2020-11-19 |
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Application publication date: 20190712 |