CN108649639A - A kind of circuit of battery pack balancing and equalization methods - Google Patents
A kind of circuit of battery pack balancing and equalization methods Download PDFInfo
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- CN108649639A CN108649639A CN201810507502.1A CN201810507502A CN108649639A CN 108649639 A CN108649639 A CN 108649639A CN 201810507502 A CN201810507502 A CN 201810507502A CN 108649639 A CN108649639 A CN 108649639A
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- battery
- circuit
- inductance
- single battery
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- 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
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- 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
Abstract
The invention discloses a kind of circuit of battery pack balancing and equalization methods, it is characterised in that：Including battery circuit, switch selection circuit, equalizer and measurement and control unit, battery circuit includes n single battery；Switch selection circuit is connect with battery circuit；Measurement and control unit includes control module, drive module, voltage detection module and current detection module, voltage detection module connects each single battery, voltage for detecting each single battery, current detection module connects equalizer, for detecting euqalizing current, control module is connect with equalizer, drive module, voltage detection module and current detection module respectively, drive module connecting valve selection circuit, for the voltage for controlling balancing battery group according to control module；Equalizer is also connected with switch selection circuit, for the control balancing battery group electric current according to control module.Circuit of battery pack balancing and equalization methods disclosed by the invention can take the charge and discharge balancing of a variety of balance policies realization battery packs.
Description
Technical field
The present invention relates to electronic circuit field, more particularly to a kind of circuit of battery pack balancing and equalization methods.
Background technology
In the industrialization engineering of new energy system, the performance of battery be influence whole system performance key factor it
One, while occupying higher ratio in cost, it might even be possible to say that battery plays decisive role to entire New Energy Industry.But
The constitution difference that single battery generates in the fabrication process and Bu Tong inside and outside portion environment residing during use, lead to monomer
Battery with two side terminals is gradually deteriorated.According to " short -board effect principle ", battery pack is in capacity utilization, service life cycle etc.
Compared with single battery degradation.Therefore it needs to apply battery equalizing circuit adjusted, to keep the capacity of battery pack, prolong
The service life of long battery pack.Current equalizing circuit includes mainly passive balanced and active equalization two.
But the different balance policy of above two respectively has advantage and disadvantage：The realization of passive type equalizing circuit is simple and cheap, but
It is that it consumes the battery of extra electricity using the method that resistor coupled in parallel to single battery discharges, energy expenditure is big, but also
Heat is will produce, the problem that euqalizing current is small is caused.
Active equalization circuit is more efficient, reduces charging and capacitance mismatches effect, can be in the process of charging and discharging
Middle work, but its circuit structure is complicated, is easy to go wrong, cost is higher with failure rate.
Invention content
The technical problem to be solved in the present invention is to provide a kind of circuit of battery pack balancing and equalization methods, existing to solve
Equalizing circuit balancing speed is low, and the low problem of balanced energy transfer efficiency is to realize the efficient charge and discharge balancing of battery pack.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of circuit of battery pack balancing, including battery circuit, switch selection circuit, equalizer and measurement and control unit,
Wherein, the battery circuit includes n single battery E1-En；
The switch selection circuit is connect with the battery circuit；
The measurement and control unit includes control module, drive module, voltage detection module and current detection module, the voltage
The each single battery of detection module connection, the voltage for detecting each single battery, the current detection module connection
The equalizer, for detecting euqalizing current, the control module respectively with the equalizer, the driving mould
Block, the voltage detection module are connected with the current detection module, and the drive module connects the switch selection circuit, are used
In the voltage for controlling balancing battery group according to control module；
The equalizer is also connected with switch selection circuit, for the control balancing battery group electricity according to control module
Stream.
Optionally, the switch selection circuit includes first choice module and second selecting module,
The first choice module includes m two channel relay Q1-Qm, the two channel relay Qi and the monomer
The anode of battery Ei connections, the first contact of the two channel relay Qi and the single battery Ei connect and compose the first anode
Channel, the second contact of the two channel relay Qi and the cathode of the single battery Ei connect and compose the first cathode channel,
The pin in the positive channel of the first of the two channel relay Q1-Qm is connected by the first positive electrode bus and the equalizer
It connects, the pin in the first cathode channel of the two channel relay Q1-Qm passes through the first negative electrode bus and balanced device electricity
Road connects,
Second selecting module includes h two channel relay K1-Kh, the two channel relay Ki and the monomer
The anode of battery Ei connections, the first contact of the two channel relay Ki and the single battery Ei connect and compose the second anode
Channel, the second contact of the two channel relay Ki and the cathode of the single battery Ei connect and compose the second cathode channel,
The pin in the positive channel of the second of the two channel relay K1-Kh is connected by the second positive electrode bus and the equalizer
It connects, the pin in the second cathode channel of the two channel relay K1-Kh passes through the second negative electrode bus and balanced device electricity
Road connects.
Optionally：The equalizer includes field-effect tube VT, inductance L1, inductance L2 and protection diode D, field-effect
The grid of pipe VT is connect with control module, and inductance L2 is connected between the drain electrode of field-effect tube VT and second positive electrode bus,
It is connected with inductance L1 between the drain electrode of field-effect tube VT and first positive electrode bus, electricity is in series between inductance L1 and inductance L2
Hold C, the source electrode of field-effect tube VT is connect with the first negative electrode bus and the second negative electrode bus respectively, drain electrode and the electricity of field-effect tube VT
Hold and is connected with protection diode D between node and the source electrode of field-effect tube VT between C.
Optionally, the control module controls the clearance duty ratio of field-effect tube VT with balanced electricity by output pwm signal
Stream.
Optionally, the field-effect tube VT is P-channel enhancement type FET.
Optionally, the control module includes central processing unit or microprocessor.
Optionally, the voltage detection module includes voltage detecting circuit, and the current detection module includes current sense
Device.
Optionally, field-effect tube VT is P-channel enhancement type metal-oxide-semiconductor.
According to another aspect of the present invention, a kind of battery pack equilibrium method is additionally provided, this method includes：
Step S1, equilibrium condition is set, the equilibrium condition includes the SOC threshold or voltage threshold of battery cell；
Step S2, the electric current and voltage of each battery cell are acquired, and calculates the SOC of battery cell；
Step S3, the SOC value of each single battery or voltage value are arranged in order according to size, and judge each battery list
Whether the SOC value or voltage value of body meet equilibrium condition, if meeting equilibrium condition, then follow the steps S4；If not meeting balanced item
Part thens follow the steps S2；
If step S4, the voltage value of battery cell does not meet equilibrium condition, by SOC value or the maximum monomer electricity of voltage value
Pairing progresss of pond and the single battery of SOC value or voltage value minimum is balanced, up to SOC value or the maximum single battery of voltage value with
The single battery of SOC value or voltage value minimum is in threshold range；
Step S5, step S2-S4 is repeated, until each single battery does not meet equilibrium condition.
Optionally, balancing procedure includes：
Step S41, drive module controls the two channel relay K being connect with SOC value or the maximum single battery of voltage value
Conducting is connected with the two channel relay Q of the single battery of SOC value or voltage value minimum connection；
Step S42, control module output pwm signal control field-effect tube VT conductings, SOC value or the maximum monomer of voltage value
Battery charges to inductance L1, and capacitance C charges to the single battery and inductance L2 of SOC value or voltage value minimum；
Step S43, after inductance L2 charging completes, control module output pwm signal controls field-effect tube VT shutdowns, inductance L2
It charges to capacitance C, inductance L1 charges to the single battery of SOC value or voltage value minimum；
Step S44, after capacitance C charging completes, repeat step S42- step S43, until each battery cell SOC value or
Voltage value does not meet equilibrium condition.
Using above-mentioned technical proposal, the charge and discharge balancing of series battery is realized since various balance policies may be used,
Allow the charge and discharge balancing of the realization battery pack of battery pack rapidly and efficiently.
Description of the drawings
Fig. 1 is the structural schematic diagram of the circuit of battery pack balancing of the embodiment of the present invention；
Fig. 2 is the switch selection circuit structural schematic diagram of the circuit of battery pack balancing of the embodiment of the present invention；
Fig. 3 is the measurement and control unit structural schematic diagram of the circuit of battery pack balancing of the embodiment of the present invention；
Fig. 4 is the equalizer structural schematic diagram of the circuit of battery pack balancing of the embodiment of the present invention；
Fig. 5 is the battery pack equilibrium method flow chart of the embodiment of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.In addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
Embodiment 1
A kind of circuit of battery pack balancing, as shown in Fig. 1, including battery circuit, switch selection circuit, equalizer
And measurement and control unit, measurement and control unit connection equalizer and switch selection circuit, switch selection circuit are also respectively connected with battery pack
Circuit and equalizer.
Wherein, battery circuit includes n single battery E1-En, wherein n ＞ 1, in an embodiment of the present invention with n=
It is illustrated for 10.
Attached drawing 2 show the structural schematic diagram of switch selection circuit, and as shown in Fig. 2, switch selection circuit includes first
Selecting module and the second selecting module.
First choice module includes 10 two channel relay Q1-Q10, and two channel relay Qi connects with single battery Ei
It connects, the first contact of two channel relay Qi connects and composes the first positive channel, binary channels relay with the anode of single battery Ei
The second contact of device Qi and the cathode of single battery Ei connect and compose the first cathode channel, and the first of two channel relay Q1-Q10
The pin in positive channel is connect by the first positive electrode bus with equalizer, the first cathode of two channel relay Q1-Q10
The pin in channel is connect by the first negative electrode bus with equalizer, and the second selecting module includes 10 two channel relays
K1-K10, two channel relay Ki are connect with single battery Ei, and the first contact of two channel relay Ki is with single battery Ei's
Anode connects and composes the second positive channel, and the second contact of two channel relay Ki and the cathode of single battery Ei connect and compose the
The pin in two cathode channels, the second positive channel of two channel relay K1-K10 passes through the second positive electrode bus and balanced device electricity
Road connects, and the pin in the second cathode channel of two channel relay K1-K10 is connected by the second negative electrode bus and equalizer
It connects.
Attached drawing 3 show the structural schematic diagram of measurement and control unit, and as shown in Fig. 3, measurement and control unit includes control module, driving
Module, voltage detection module and current detection module, voltage detection module connects each single battery, for detecting each monomer
The voltage of battery, current detection module connect equalizer, control module respectively with equalizer, drive module, voltage
Detection module is connected with current detection module, drive module connecting valve selection circuit, for equal according to the control of control module
The voltage for the battery pack that weighs, control module control equalizer with euqalizing current by output pwm signal.
Wherein, control module can be central processing unit or microprocessor, and in an embodiment of the present invention, control module is
Central processing unit, pressure detection module can be voltage detecting circuit, and current detection module can be current sensor.
Attached drawing 4 show the structural schematic diagram of equalizer, and as shown in Fig. 4, equalizer includes field-effect tube
VT, inductance L1, inductance L2 and protection diode D, the grid of field-effect tube VT are connect with control module, the drain electrode of field-effect tube VT
It is connected with inductance L2 between the second positive electrode bus, inductance is connected between the drain electrode of field-effect tube VT and the first positive electrode bus
L1, is in series with capacitance C between inductance L1 and inductance L2, the source electrode of field-effect tube VT respectively with the first negative electrode bus and the second cathode
Busbar connects, and protection two is connected between the node and the source electrode of field-effect tube VT between the drain electrode and capacitance C of field-effect tube VT
Pole pipe D.Wherein field-effect tube VT is P-channel enhancement type metal-oxide-semiconductor, and current detection module is separately connected inductance L1 and inductance L2, is used
In the electric current of the electric current and inductance L2 of detection inductance L1.
The equalizing circuit of the embodiment of the present invention is realized in balanced：
When initial, all relays of first choice module and the second selecting module are all the shapes turned off with single battery
State.
Voltage detecting circuit detects the control source of each single battery to control module, and central processing unit is to single battery
Voltage UiBeing judged with the voltage U of preset battery pack balancing condition in central processing unit, wherein U is a value range,
It for example can be Umin~Umax in an embodiment of the present invention, big minispread, wherein Ui are carried out to all voltage values>Umax
Or Ui<Umin is to need balanced battery, in the present embodiment, is more than Umax, the electricity of battery E10 with the voltage value of battery E1
Pressure value illustrates for being less than Umin, and controlling the maximum battery discharge of voltage value by control unit at this time gives voltage value minimum
Battery charge.
It is illustrated so that battery E1 discharges to battery E10 as an example below：
Energy storage and exergonic process：Central processing unit controls drive module control relay K1 and relay Q10 conductings, center
Processor output pwm signal to field-effect tube VT, the at this time drain electrode of field-effect tube VT and source electrode forms channel, and battery E1 is to inductance
L2 charges, and after fully charged to inductance L2 chargings, inductance L2 charges to capacitance C, after fully charged to capacitance C, equalizer
Two circuits of middle formation：When field-effect tube VT conductings, the charge tunnel of battery E1, inductance L2 and field-effect tube VT compositions, battery
The discharge channel of E10, inductance L1, capacitance C and field-effect tube VT compositions, when field-effect tube VT is turned off, battery E1, inductance L2, electricity
Hold the charge tunnel of C and diode D compositions, the discharge channel of battery E10, inductance L1 and diode D compositions.
Above-mentioned charge tunnel charges for battery E1 to equalizing circuit.
Above-mentioned discharge channel discharges for equalizing circuit to battery E10.
Above-mentioned energy storage is repeated with exergonic process until the voltage of battery E1 is not more than the voltage U of equilibrium condition.
The balancing procedure of battery of other voltages more than U is as the above process, and details are not described herein.
Above-described embodiment is described by equilibrium condition of voltage, in addition to this it is possible to be balanced item with SOC value
Part is described judgement.
Embodiment 2
A kind of battery pack equilibrium method, this approach includes the following steps：
Step S1, equilibrium condition is set, the equilibrium condition includes the SOC threshold or voltage threshold of battery cell, existing
In technology, voltage threshold is usually set, but is adopted by being provided with voltage acquisition module and electric current in an embodiment of the present invention
Collect module, SOC is calculated according to electric current and voltage value, so the embodiment of the present invention can be with SOC threshold or voltage threshold
For equilibrium condition；
Step S2, the electric current and voltage of each battery cell are acquired, and calculates the SOC of battery cell, if equilibrium condition is
Voltage threshold then needs to acquire each battery list to the voltage of acquisition battery cell if equilibrium condition is SOC threshold
The electric current and voltage of body, and calculate the SOC of battery cell；
Step S3, the SOC value of each single battery or voltage value are arranged in order according to size, and judge each battery list
Whether the SOC value or voltage value of body meet equilibrium condition, if meeting equilibrium condition, then follow the steps S2；If not meeting balanced item
Part thens follow the steps S4；
If step S4, the voltage value of battery cell does not meet equilibrium condition, by SOC value or the maximum monomer electricity of voltage value
Pond is balanced with the pairing progress of the single battery of SOC value or voltage value minimum, until SOC value or the maximum single battery of voltage value are full
Sufficient equilibrium condition；
Step S5, step S2-S4 is repeated, until each single battery meets equilibrium condition.
Specifically：Below with SOC value or monomer that the maximum single battery of voltage value is E1, SOC value or voltage value minimum
Battery illustrates balancing procedure for being E10：
Step S41, drive module controls the two channel relay K being connect with SOC value or the maximum single battery of voltage value
Conducting is connected with the two channel relay Q of the single battery of SOC value or voltage value minimum connection；
Step S42, control module output pwm signal control field-effect tube VT conductings, SOC value or the maximum monomer of voltage value
Battery charges to inductance L2, and capacitance C charges to the single battery and inductance L1 of SOC value or voltage value minimum；
Step S43, after inductance L2 charging completes, control module output pwm signal controls field-effect tube VT shutdowns, inductance L2
It charges to capacitance C, inductance L1 charges to the single battery of SOC value or voltage value minimum；
Step S44, after capacitance C charging completes, repeat step S42- step S43, until each battery cell SOC value or
Voltage value does not meet equilibrium condition.
The battery pack of the present invention forms energy storage channel, monomer electricity according to different balance policies, by switch selection circuit
It is stored among the power extraction of pond or battery pack to non-isolated balanced device, it is logical to form exoergic by switch selection circuit
The energy stored among non-isolated balanced device is released to single battery or battery pack by road.The storage of switch selection circuit setting
Single battery or entire battery pack to arbitrary needs can be opened with exoergic channel, therefore, battery pack can be rapidly and efficiently
Realization battery pack charge and discharge balancing.
Embodiments of the present invention are explained in detail above in association with attached drawing, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (10)
1. a kind of circuit of battery pack balancing, it is characterised in that：Including battery circuit, switch selection circuit, equalizer and
Measurement and control unit,
The battery circuit includes n single battery E1-En, wherein n >=1；
The switch selection circuit is connect with the battery circuit；
The measurement and control unit includes control module, drive module, voltage detection module and current detection module, the voltage detecting
The each single battery of module connection, the voltage for detecting each single battery, described in the current detection module connection
Equalizer, for detecting euqalizing current, the control module respectively with the equalizer, the drive module, institute
It states voltage detection module to connect with the current detection module, the drive module connects the switch selection circuit, the drive
For dynamic model block for controlling the corresponding relay of balanced monomer according to control module, the equilibrium monomer is to need balanced electricity
Pond；
The equalizer is also connected with switch selection circuit.
2. a kind of circuit of battery pack balancing according to claim 1, it is characterised in that：The switch selection circuit includes the
One selecting module and second selecting module,
The first choice module includes m two channel relay Q1-Qm, wherein m=n, the two channel relay Qi and institute
State single battery Ei connections, the anode of the first contact of the two channel relay Qi and the single battery Ei connects and composes the
One positive channel, the second contact of the two channel relay Qi and the cathode of the single battery Ei connect and compose the first cathode
The pin in channel, the first positive channel of the two channel relay Q1-Qm passes through the first positive electrode bus and the balanced device
Circuit connects, the pin in the first cathode channel of the two channel relay Q1-Qm by the first negative electrode bus with it is described
Weighing apparatus circuit connects,
Second selecting module includes h two channel relay K1-Kh, wherein h=n, the two channel relay Ki and institute
State single battery Ei connections, the anode of the first contact of the two channel relay Ki and the single battery Ei connects and composes the
Two positive channels, the second contact of the two channel relay Ki and the cathode of the single battery Ei connect and compose the second cathode
The pin in channel, the second positive channel of the two channel relay K1-Kh passes through the second positive electrode bus and the balanced device
Circuit connects, the pin in the second cathode channel of the two channel relay K1-Kh by the second negative electrode bus with it is described
Weighing apparatus circuit connects.
3. a kind of circuit of battery pack balancing according to claim 2, it is characterised in that：The equalizer includes field effect
Should pipe VT, inductance L1, inductance L2 and protection diode D, the grid of field-effect tube VT connect with control module, field-effect tube VT's
It is connected with inductance L2 between drain electrode and second positive electrode bus, between the drain electrode of field-effect tube VT and first positive electrode bus
Be connected with inductance L1, be in series with capacitance C between inductance L1 and inductance L2, the source electrode of field-effect tube VT respectively with the first negative electrode bus
It connects with the second negative electrode bus, connects between the node and the source electrode of field-effect tube VT between the drain electrode and capacitance C of field-effect tube VT
It is connected to protection diode D,
The current detection module is separately connected inductance L1 and inductance L2, the electricity of electric current and inductance L2 for detecting inductance L1
Stream.
4. a kind of circuit of battery pack balancing according to claim 3, it is characterised in that：The control module passes through output
Pwm signal controls the clearance duty ratio of field-effect tube VT with euqalizing current.
5. a kind of circuit of battery pack balancing according to claim 3, it is characterised in that：The field-effect tube VT is P-channel
Enhanced field-effect tube.
6. a kind of circuit of battery pack balancing according to claim 1, it is characterised in that：The control module includes centre
Manage device or microprocessor.
7. a kind of circuit of battery pack balancing according to claim 1, it is characterised in that：The voltage detection module includes electricity
Detection circuit is pressed, the current detection module includes current sensor.
8. a kind of circuit of battery pack balancing according to claim 3, it is characterised in that：The field-effect tube VT includes P ditches
The enhanced metal-oxide-semiconductor in road.
9. a kind of battery pack equilibrium method, the method is applied to claim 1-7 any one of them equalizing circuits, feature
It is：Method includes the following steps：
Step S1, equilibrium condition is set, the equilibrium condition includes the SOC threshold or voltage threshold of battery cell；
Step S2, the electric current and voltage of each battery cell are acquired, and calculates the SOC of battery cell；
Step S3, the SOC value of each single battery or voltage value are arranged in order according to size, and judge each battery cell
Whether SOC value or voltage value meet equilibrium condition, if meeting equilibrium condition, then follow the steps S4；If not meeting equilibrium condition,
Execute step S2；
If step S4, the voltage value of battery cell meets equilibrium condition, by SOC value or the maximum single battery of voltage value with
The pairing of the single battery of SOC value or voltage value minimum carries out equilibrium, until SOC value or the maximum single battery of voltage value and SOC
The single battery of value or voltage value minimum is in threshold range；
Step S5, step S2-S4 is repeated, until each single battery does not meet equilibrium condition.
10. a kind of battery pack equilibrium method according to claim 9, it is characterised in that：The balancing procedure includes：
Step S41, drive module control is connected with the two channel relay K of SOC value or the maximum single battery connection of voltage value,
It is connected with the two channel relay Q of the single battery of SOC value or voltage value minimum connection；
Step S42, control module output pwm signal control field-effect tube VT conductings, SOC value or the maximum single battery of voltage value
It charges to inductance L2, capacitance C charges to the single battery and inductance L1 of SOC value or voltage value minimum；
Step S43, after inductance L2 charging completes, control module output pwm signal controls field-effect tube VT shutdowns, and inductance L2 is to electricity
Hold C chargings, inductance L1 charges to the single battery of SOC value or voltage value minimum；
Step S44, after capacitance C charging completes, step S42- step S43 are repeated, until the SOC value or voltage of each battery cell
Value does not meet equilibrium condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810507502.1A CN108649639A (en) | 2018-05-24 | 2018-05-24 | A kind of circuit of battery pack balancing and equalization methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810507502.1A CN108649639A (en) | 2018-05-24 | 2018-05-24 | A kind of circuit of battery pack balancing and equalization methods |
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| Publication Number | Publication Date |
|---|---|
| CN108649639A true CN108649639A (en) | 2018-10-12 |
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ID=63757862
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|---|---|---|---|
| CN201810507502.1A Pending CN108649639A (en) | 2018-05-24 | 2018-05-24 | A kind of circuit of battery pack balancing and equalization methods |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231574A (en) * | 2019-06-14 | 2019-09-13 | 安徽锐能科技有限公司 | A kind of SOE estimation method based on energy content of battery moving type active equalization |
| CN117134008A (en) * | 2023-10-26 | 2023-11-28 | 广州疆海科技有限公司 | Battery pack capacity balancing method, device and system |
-
2018
- 2018-05-24 CN CN201810507502.1A patent/CN108649639A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231574A (en) * | 2019-06-14 | 2019-09-13 | 安徽锐能科技有限公司 | A kind of SOE estimation method based on energy content of battery moving type active equalization |
| CN110231574B (en) * | 2019-06-14 | 2021-08-20 | 安徽锐能科技有限公司 | SOE estimation method based on battery energy moving type active equalization |
| CN117134008A (en) * | 2023-10-26 | 2023-11-28 | 广州疆海科技有限公司 | Battery pack capacity balancing method, device and system |
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