CN109739160A - A kind of battery control device and system - Google Patents
A kind of battery control device and system Download PDFInfo
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- CN109739160A CN109739160A CN201910187776.1A CN201910187776A CN109739160A CN 109739160 A CN109739160 A CN 109739160A CN 201910187776 A CN201910187776 A CN 201910187776A CN 109739160 A CN109739160 A CN 109739160A
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- 239000003990 capacitor Substances 0.000 claims description 57
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 13
- 229910052744 lithium Inorganic materials 0.000 claims description 13
- 238000004146 energy storage Methods 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 8
- 210000001367 artery Anatomy 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 230000005669 field effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
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Abstract
It includes control core, pulsed drive, power module and AFE(analog front end) that the application, which provides a kind of battery control device and system, battery control device,.Control core can pass through the start and stop of the start-up and shut-down control power module of control pulsed drive.It after power module starting, can power to control core, so that control core uses the electric energy starting AFE(analog front end) obtained from power module.After power module is closed, control core can not obtain the electric energy of power module, control AFE(analog front end) at this time and close.Using battery control device provided by the present application and system, enables control core to control AFE(analog front end) and just run in power module work, it is therefore prevented that AFE(analog front end) consumes always the electricity of supplying cell, avoids power supply waste.
Description
Technical field
This application involves field of battery management, in particular to a kind of battery control device and system.
Background technique
With the popularization of green energy conservation concept, electrokinetic cell system and energy storage battery system become new energy industry development
Fresh combatants, core link of the battery management system (BATTERY MANAGEMENT SYSTEM, abbreviation BMS) as battery system
Increasing effect is played in power and energy-storage battery field, the quality of BMS system directly determines the stabilization of battery system
Property.
BMS system power supply has the following problems at present: firstly, the AFE(analog front end) of BMS system is directly from BMS system power supply electricity
Pond takes electricity, and it is too fast to will lead to BMS system power supply battery loss.Secondly, BMS system will not be automatically stopped running once crashing, according to
It is old to consume BMS system power supply battery capacity always, the service life of BMS system power supply battery can be not only consumed, and may be used also
Entire BMS system can be damaged.
In view of this, the power supply waste for how reducing BMS system AFE(analog front end) is existing current problem to be solved.
Summary of the invention
The application's is designed to provide a kind of battery control device and system.
In a first aspect, the application provides a kind of battery control device, including control core, pulsed drive, power module and
AFE(analog front end)；
The pulsed drive is connect with the power module, for controlling the start and stop of the power module；
The power module is connect with the control core, for powering on startup for the control core；
The control core is connect with the pulsed drive and AFE(analog front end) respectively, for controlling opening for the pulsed drive
Stop, and be to control the AFE(analog front end) starting when control core is powered in the power module, the power module not
Stop to control the AFE(analog front end) when control core power supply.
Optionally, the control core is connect with the pulsed drive by start-up circuit；
The start-up circuit includes first resistor, second resistance, 3rd resistor, first capacitor and the second capacitor；
The output end of the control core is in parallel with the first capacitor；
One end of the first capacitor is connect with one end of second capacitor by the first resistor；
The other end of the first capacitor is connect with the other end of second capacitor by the second resistance；
The second resistance and second capacitor are connected to ground；
One end of the 3rd resistor is connected between the first resistor and second capacitor, the other end and the arteries and veins
Punching is drivingly connected, and the start-up circuit output enables signals to the input terminal of the pulsed drive, to control the pulsed drive
Start and stop.
Optionally, it is connected between the pulsed drive and the power module by driving circuit；
The driving circuit includes the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, third electricity
Appearance, the 4th capacitor, the 5th capacitor, the first triode and the second triode；
The output end of the pulsed drive is connect with one end of the third capacitor；
The other end of the third capacitor is connect with one end of the 4th capacitor by the 4th resistance, the 4th capacitor
The other end ground connection；
5th resistance is in parallel with the 4th capacitor；
The base stage of first triode is connect with the unearthed one end of the 4th capacitor, collector and emitter pass through
5th capacitance connection, the collector of first triode are connect with one end of the 6th resistance；
One end of 7th resistance is connected between the collector of first triode and the 5th capacitor, described
The other end of 7th resistance is connect with the base stage of second triode；
The emitter of second triode is grounded, and the collector of second triode and one end of the 8th resistance connect
It connects；
The input terminal of the power module is connected between the collector of second triode and the 8th resistance；
The driving circuit converts high level signal for the pulse signal that the control core inputs and is output to the electricity
Source module, so that the power module starts.
Optionally, the battery control device further includes 18650 lithium batteries；
18650 lithium battery is connect with the control core, when for providing low-power consumption work for the control core
Electricity；
18650 lithium battery is connect with the power module, in power module starting from the power module
Middle supplement electricity.
Optionally, first triode and the second triode are MMBT2222AAL patch triode.
Optionally, the output end of the control core includes relay switch；
The control core is connect by the relay switch with the start-up circuit.
Optionally, the input terminal of the power module includes external drive controller；
The external drive controller is connected between the collector of second triode and the 8th resistance, is used for
Receive the high level signal that the driving circuit issues.
Optionally, the external drive controller is optical coupled switch.
Optionally, the control core is STM32F107VCT6 microcontroller.
Second aspect, the application also provide a kind of battery control system, including electricity described in energy-storage battery and first aspect
Pond control device；
The battery control device is connect with the energy-storage battery, for managing the state of the energy-storage battery.
It includes control core, pulsed drive, electricity that the application, which provides a kind of battery control device and system, battery control device,
Source module and AFE(analog front end).Control core can pass through the start and stop of the start-up and shut-down control power module of control pulsed drive.Power supply mould
It after block starting, can power to control core, so that control core uses before the electric energy starting simulation obtained in power module
End.After power module is closed, control core can not obtain the electric energy of power module, control AFE(analog front end) at this time and close.Use this
The battery control device provided and system are provided, control core is enabled to control AFE(analog front end) in power module work Shi Caiyun
Row, it is therefore prevented that AFE(analog front end) consumes always the electricity of supplying cell, avoids power supply waste.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the application, therefore it is not construed as pair
The restriction of range.It for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the exemplary block diagram of battery control device provided by the embodiments of the present application；
Fig. 2 is the exemplary circuit diagram of start-up circuit provided by the embodiments of the present application；
Fig. 3 is the exemplary circuit diagram of driving circuit provided by the embodiments of the present application；
Fig. 4 is the schematic diagram of microcontroller provided by the embodiments of the present application.
Icon: 1- control core；2- pulsed drive；3- power module；4- AFE(analog front end).
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described.Obviously, described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, " setting ", " even
Connect " etc. terms shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in this application.
With reference to the accompanying drawing, the specific embodiment of the application is described in detail.
Fig. 1 is please referred to, Fig. 1 is the exemplary block diagram of battery control device provided by the embodiments of the present application, including control
Core 1, pulsed drive 2, power module 3 and AFE(analog front end) 4 processed.
The pulsed drive 2 is connect with the power module 3, for controlling the start and stop of the power module 3.
The power module 3 is connect with the control core 1, for powering on startup for the control core 1.
The control core 1 is connect with the pulsed drive 2 and AFE(analog front end) 4 respectively, for controlling the pulsed drive 2
Start and stop, and be to control the AFE(analog front end) 4 when the control core 1 is powered to start in the power module 3, in the power supply
Module 3 does not stop to control the AFE(analog front end) 4 when the control core 1 power supply.
In the present embodiment, (it can be level signal, for example, by high electricity when control core 1 receives external control signal
Low level is changed in truncation) instruction when, control core 1 control pulsed drive 2 start.After pulsed drive 2 starts, to power module 3
External power supply can be connected, after power module 3 starts to obtain electric energy by issuing control signal.After power module 3 is started to work,
It powers to control core 1.After control core 1 obtains the electric energy that power module 3 provides, control AFE(analog front end) 4 is started to work.Work as control
When core 1 processed stops receiving external control signal, control core 1 controls pulsed drive 2 and stops working.Pulsed drive 2 stops work
Power module 3 is also disconnected with external power supply after work, and power module 3 stops powering to control core 1 at this time, control core 1
AFE(analog front end) 4 is closed after losing power module 3 and powering.
In one exemplary embodiment, the control core 1 can be connected with the pulsed drive 2 by start-up circuit
It connects.
Referring to figure 2., Fig. 2 is the exemplary circuit diagram of start-up circuit provided by the embodiments of the present application.The start-up circuit
Including first resistor R1, second resistance R2,3rd resistor R3, first capacitor C1 and the second capacitor C2.
The output end of the control core 1 is in parallel with the first capacitor C1.
One end of the first capacitor C1 is connect with one end of the second capacitor C2 by the first resistor R1.
The other end of the first capacitor C1 is connect with the other end of the second capacitor C2 by the second resistance R2.
The second resistance R2 and the second capacitor C2 are connected to ground.
One end of the 3rd resistor R3 is connected between the first resistor R1 and the second capacitor C2, the other end with
The pulsed drive 2 connects, and the start-up circuit output enables signals to the input terminal of the pulsed drive 2, described in control
The start and stop of pulsed drive 2.
In the present embodiment, control core 1 can control pulsed drive 2 by start-up circuit, outside control letter
It number can be the transformation of low and high level.For example, turning back to referring to Fig.2, as Key WakeUp+ and Key in start-up circuit
When WakeUp- is disconnected, the high level signal of an available 3.3V is transmitted in Key_Wake_MCU at this time, and when starting electricity
When Key WakeUp+ and KeyWakeUp- is closed in road, the low level signal of an available 0V is transmitted to Key_ at this time
In Wake_MCU.It is possible thereby to control the start and stop of pulsed drive 2 according to the switching of low and high level.For example, in the present embodiment,
External control signal can be the high level signal of 3.3V, after pulsed drive 2 receives the high level signal of 3.3V, start to transport
Row, and after pulsed drive 2 receives low level signal, it is out of service.
In one exemplary embodiment, driving electricity can be passed through between the pulsed drive 2 and the power module 3
Road connection.
Referring to figure 3., Fig. 3 is the exemplary circuit diagram of driving circuit provided by the embodiments of the present application.
The driving circuit includes the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance
R8, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the first triode Q1 and the second triode Q2.
The output end of the pulsed drive 2 is connect with one end of the third capacitor C3.
The other end of the third capacitor C3 is connect with one end of the 4th capacitor C4 by the 4th resistance R4, and described
The other end of four capacitor C4 is grounded.
The 5th resistance R5 is in parallel with the 4th capacitor C4.
The base stage of the first triode Q1 connect with the unearthed one end the 4th capacitor C4, collector and emitter
By the 5th capacitor C5 connection, the collector of the first triode Q1 is connect with one end of the 6th resistance R6.
One end of the 7th resistance R7 be connected to the first triode Q1 collector and the 5th capacitor C5 it
Between, the other end of the 7th resistance R7 is connect with the base stage of the second triode Q2.
The emitter of the second triode Q2 is grounded, and the one of the collector of the second triode Q2 and the 8th resistance R8
End connection.
The input terminal of the power module 3 be connected to the second triode Q2 collector and the 8th resistance R8 it
Between.
The driving circuit converts high level signal for the pulse signal that the control core 1 inputs and is output to the electricity
Source module 3, so that the power module 3 starts.
In the present embodiment, pulsed drive 2 can carry out start and stop to power module 3 by driving circuit.Turning back to refering to
Fig. 3, the input terminal Powerdown PWM of driving circuit can input a pulse signal, and the 6th resistance and the 7th resistance can be with
Access the high level of a 3.3V, at this point, input pulse signal after overdrive circuit, can be in the output end of driving circuit
Powerdown exports a high level signal, starts power module 3 by the high level signal of output, and works as pulsed drive 2
After stopping output pulse signal to the input terminal of driving circuit, the output end of driving circuit can export the low level letter of a 0V
Number arrive power module 3, keep power module 3 out of service.
It should be understood that in the present embodiment, being converted to high level signal pair using 2 input pulse signal of pulsed drive
Power module 3, which carries out control, can prevent from causing due to machine or software fault that power module 3 can not be automatically stopped when crashing
The problem of operation.Applicant has found in the course of the study, in the prior art, if directlying adopt high level to control power supply mould
The start and stop of block 3, due to every operation between battery control device and superior system there are communication interaction, in battery control device
Also it is participated in by software, when run-time error, which occurs, for software crashes, since the mode of control startup power supply module 3 is high level activation
Operation, and high level is all directly to access from outside, software run-time error, can not control high level at this time, power supply mould
Block 3 is also run always, and control core 1 can not correctly be run at this time, and battery control system also can not automatically determine to crash
Situation and then the stopping operation of power module 3, continue, can damage to entire battery control device, while also can not be real
The now reset of quick battery control device.
In view of this, the pulse signal that applicant is issued using the pulsed drive 2 provided in the present embodiment is to power module 3
It is controlled, control pulsed drive 2 is launched pulse signal and inherently completed by the software in battery control device, so working as
When run-time error occurs in software in power control, it is unable to control pulsed drive 2 and emits pulse signal, and power module 3
The high level signal converted by pulse signal can not be obtained from driving circuit, can not be worked.It can guarantee due to soft
When part run-time error crashes, power module 3 will not continue to work, ensure that the safety of battery control device.And it can be with
By reactivating pulsed drive 2, power module 3 is made to restart reset.
Further, the battery control device further includes 18650 lithium batteries.
18650 lithium battery is connect with the control core 1, for providing low-power consumption work for the control core 1
When electricity, it should be appreciated that in the present embodiment, 1 low-power consumption of control core work refers to that control core 1 is not appointed
What practical operation, is only in the working condition that can receive external control signal.
18650 lithium battery is connect with the power module 3, in the power module 3 starting from the power supply mould
Electricity is supplemented in block 3.
In the present embodiment, the supplying cell of battery control device itself can be 18650 lithium batteries.When outside control letter
When number not inputting, battery control device is there is no actual motion, and battery control device is in order to guarantee when there is external control letter
Number input when timely respond to, can from 18650 lithium batteries of battery control device itself obtain maintain lowest power consumption electric energy.
It should be understood that in this embodiment, being closed by the operation between control core 1, driving circuit and power module 3
System can make AFE(analog front end) 4 not obtain electricity from 18650 lithium batteries when Battery control module is without actual operation, and only work as electricity
When source module 3 connects external power supply, control core 1 just will start AFE(analog front end) 4, and battery control device has actual operation at this time,
Control core 1 is in the state of high power consumption, and control core 1 obtains electric energy realization to the behaviour of AFE(analog front end) 4 from power module 3
Control, and 18650 lithium batteries can also power module 3 start when from power module 3 electric energy supplement.
Further, first triode and the second triode are MMBT2222AAL patch triode.
Further, the output end of the control core 1 includes relay switch.
The control core 1 is connect by the relay switch with the start-up circuit.
In the present embodiment, control core 1 can be connect by a relay switch with start-up circuit.In the present embodiment
Other embodiments in, control core 1 can also pass through MOSFET (Metal-Oxide-Semiconductor Field-
Effect Transistor, Metal-Oxide Semiconductor field effect transistor) switch, IBGT (Insulated Gate
Bipolar Transistor, insulated gate bipolar transistor) switch connect with start-up circuit.
Further, the input terminal of the power module 3 includes external drive controller.
The external drive controller is connected between the collector and the 8th resistance R8 of the second triode Q2,
The high level signal issued for receiving the driving circuit.
Further, the external drive controller is optical coupled switch.
Referring to figure 4., Fig. 4 is microcontroller schematic diagram provided by the embodiments of the present application.The control core 1 is
STM32F107VCT6 microcontroller.
In the present embodiment, control core 1 can be STM32F107VCT6 microcontroller, pulsed drive 2, power module 3
Also it can integrate in STM32F107VCT6 microcontroller.17 pins and 18 pins of STM32F107VCT6 microcontroller can be with
Respectively as input terminal Key WakeUp+ and the Key WakeUp- of start-up circuit.17 pins and 18 pins can be with an external skies
Air cock, to realize the effect of switching low and high level signal.23 pins of STM32F107VCT6 microcontroller can be used as starting
Output end Key_Wake_MCU in circuit is connect with 2 corresponding line of pulsed drive, to control pulsed drive starting.
68 pins of STM32F107VCT6 microcontroller can be used as the input terminal Powerdown PWM of driving circuit, for issuing arteries and veins
It rushes signal and is converted into high level signal control power module 3.
It should be understood that in the present embodiment, what 68 pins of STM32F107VCT6 microcontroller issued can be
PMW (Pulse Width Modulation, pulsewidth modulation) wave.
It should be appreciated that, there is also other devices and line, these devices and line are used in each circuit of the embodiment of the present application
To ensure the stable operation of each circuit, the present embodiment does not illustrate one by one herein.
The present embodiment also provides a kind of battery control system, including energy-storage battery and battery control device above-mentioned.
The battery control device is connect with the energy-storage battery, for managing the state of the energy-storage battery.
In conclusion it includes control core, arteries and veins that the application, which provides a kind of battery control device and system, battery control device,
Punching driving, power module and AFE(analog front end).Control core being capable of opening by the start-up and shut-down control power module of control pulsed drive
Stop.It after power module starting, can power to control core, so that control core uses the electric energy obtained from power module to open
Dynamic AFE(analog front end).After power module is closed, control core can not obtain the electric energy of power module, control AFE(analog front end) at this time and close
It closes.Using battery control device provided by the present application and system, control core is enabled to control AFE(analog front end) in power module
It is just run when work, it is therefore prevented that AFE(analog front end) consumes always the electricity of supplying cell, avoids power supply waste.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of battery control device, which is characterized in that including control core, pulsed drive, power module and AFE(analog front end)；
The pulsed drive is connect with the power module, for controlling the start and stop of the power module；
The power module is connect with the control core, for powering on startup for the control core；
The control core is connect with the pulsed drive and AFE(analog front end) respectively, for controlling the start and stop of the pulsed drive,
And the AFE(analog front end) starting is controlled when the power module is control core power supply, it is not institute in the power module
The AFE(analog front end) is controlled when stating control core power supply to stop.
2. the apparatus according to claim 1, which is characterized in that the control core and the pulsed drive pass through starting electricity
Road connection；
The start-up circuit includes first resistor, second resistance, 3rd resistor, first capacitor and the second capacitor；
The output end of the control core is in parallel with the first capacitor；
One end of the first capacitor is connect with one end of second capacitor by the first resistor；
The other end of the first capacitor is connect with the other end of second capacitor by the second resistance；
The second resistance and second capacitor are connected to ground；
One end of the 3rd resistor is connected between the first resistor and second capacitor, the other end and the pulse drive
Dynamic connection, the start-up circuit output enables signals to the input terminal of the pulsed drive, to control opening for the pulsed drive
Stop.
3. the apparatus of claim 2, which is characterized in that pass through drive between the pulsed drive and the power module
Dynamic circuit connection；
The driving circuit includes the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, third capacitor, the
Four capacitors, the 5th capacitor, the first triode and the second triode；
The output end of the pulsed drive is connect with one end of the third capacitor；
The other end of the third capacitor is connect with one end of the 4th capacitor by the 4th resistance, the 4th capacitor it is another
One end ground connection；
5th resistance is in parallel with the 4th capacitor；
The base stage of first triode is connect with the unearthed one end of the 4th capacitor, collector and emitter are described in
5th capacitance connection, the collector of first triode are connect with one end of the 6th resistance；
One end of 7th resistance is connected between the collector of first triode and the 5th capacitor, and the described 7th
The other end of resistance is connect with the base stage of second triode；
The emitter of second triode is grounded, and the collector of second triode is connect with one end of the 8th resistance；
The input terminal of the power module is connected between the collector of second triode and the 8th resistance；
The driving circuit converts high level signal for the pulse signal that the control core inputs and is output to the power supply mould
Block, so that the power module starts.
4. the apparatus according to claim 1, which is characterized in that the battery control device further includes 18650 lithium batteries；
18650 lithium battery is connect with the control core, for providing electricity when low-power consumption work for the control core
Amount；
18650 lithium battery is connect with the power module, is mended from the power module in power module starting
Charge volume.
5. device according to claim 3, which is characterized in that first triode is with the second triode
MMBT2222AAL patch triode.
6. the apparatus of claim 2, which is characterized in that the output end of the control core includes relay switch；
The control core is connect by the relay switch with the start-up circuit.
7. device according to claim 3, which is characterized in that the input terminal of the power module includes external drive control
Device；
The external drive controller is connected between the collector of second triode and the 8th resistance, for receiving
The high level signal that the driving circuit issues.
8. device according to claim 7, which is characterized in that the external drive controller is optical coupled switch.
9. the apparatus according to claim 1, which is characterized in that the control core is STM32F107VCT6 microcontroller.
10. a kind of battery control system, which is characterized in that including energy-storage battery and electricity of any of claims 1-9
Pond control device；
The battery control device is connect with the energy-storage battery, for managing the state of the energy-storage battery.
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| CN201910187776.1A CN109739160A (en) | 2019-03-13 | 2019-03-13 | A kind of battery control device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110764446A (en) * | 2019-10-23 | 2020-02-07 | 重庆梅安森科技股份有限公司 | Chip peripheral circuit of integrated on-off control circuit |
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| CN209297142U (en) * | 2019-03-13 | 2019-08-23 | 上海采日能源科技有限公司 | A kind of battery control device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110764446A (en) * | 2019-10-23 | 2020-02-07 | 重庆梅安森科技股份有限公司 | Chip peripheral circuit of integrated on-off control circuit |
| CN110764446B (en) * | 2019-10-23 | 2022-10-04 | 重庆梅安森科技股份有限公司 | Chip peripheral circuit of integrated on-off control circuit |
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