CN108964162A - A kind of battery management system wake-up system and a kind of DC/DC converter - Google Patents
A kind of battery management system wake-up system and a kind of DC/DC converter Download PDFInfo
- Publication number
- CN108964162A CN108964162A CN201710370236.8A CN201710370236A CN108964162A CN 108964162 A CN108964162 A CN 108964162A CN 201710370236 A CN201710370236 A CN 201710370236A CN 108964162 A CN108964162 A CN 108964162A
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- Prior art keywords
- management system
- battery management
- power
- battery
- control module
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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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
-
- 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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- Engineering & Computer Science (AREA)
- 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)
Abstract
The present invention relates to a kind of battery management systems to wake up system and a kind of DC/DC converter, inside DC/DC converter other than having power cell, it further include having control module, the control module is connect with battery management system, and control connection DC/DC power cell, when needing to wake up battery management system, control module controls the conducting of DC/DC power cell, power battery battery management system is set to power, otherwise, control module controls DC/DC power cell and disconnects, and power battery is not battery management system power supply.The system can reduce the hardware and software cost of battery management system, improve the operational reliability of battery management system.Moreover, DC/DC power cell improves the service life of DC/DC power cell, also, the power circuit between DC/DC power cell and battery management system is no longer long charged, reduces and give vehicle bring security risk without working long hours.
Description
Technical field
The present invention relates to a kind of battery management systems to wake up system and a kind of DC/DC converter.
Background technique
As national new energy policy constantly takes a turn for the better, the market maintenance of electric car is constantly promoted, in electric car pin
While amount is constantly promoted, car, car manufacturing manufacturer and power battery manufacturer are to the safety of power battery, reliable
Property, energy saving also continuing to optimize promoted, be all to pass through high pressure at present to meet the timing wake-up mechanism of electrokinetic cell system
Turn the normal time service mechanism of low voltage DC/DC.As shown in Figure 1, it is battery management system that power battery, which turns low voltage DC/DC by high pressure,
(BMS) it powers, is battery management system power supply particular by the power cell in DC/DC converter.In battery management system
It is provided with wake-up module, for battery management system being waken up, not needing battery management when needing battery management system to run
When system is run, such as suspend mode, control battery management system suspend mode.But be provided in battery management system dedicated for
The wake-up module of wake-up can increase the hardware and software cost of battery management system, become more complicated battery management system, into
And promote the operation troubles rate of battery management system.Moreover, high pressure turns low regardless of what operating status battery management system is in
Pressure DC/DC is required to power for battery management system, because of wake-up module and other correlations inside battery management system
Even if module battery management system in a dormant state when also to run, need electric energy to supply, so, regardless of battery management system
System is in any operating status, and DC/DC converter is required to run, and only DC/DC converter operation can be battery management
System exports electric energy.In short, DC/DC converter is being run regardless of what operating status battery management system is in.DC/DC
The work of converter long-play can impact it, for example DC/DC internal temperature is caused to increase, and influence the use of DC/DC
Service life increases the failure rate of DC/DC.And the connection line between DC/DC and battery management system, which has low pressure also, high pressure system
It unites, it is long charged in connection line that immeasurable security risk can be brought to vehicle.
Summary of the invention
The object of the present invention is to provide a kind of battery management systems to wake up system, to solve DC/DC long-play
Problem.Present invention simultaneously provides a kind of DC/DC converters.
To achieve the above object, the solution of the present invention includes a kind of battery management system wake-up system, including DC/DC transformation
Device and battery management system, DC/DC converter include DC/DC power cell, and power battery is battery by DC/DC power cell
Management system is powered, and the control module for waking up battery management system, the control are also set up inside the DC/DC converter
Module is connect with battery management system, control module control connection DC/DC power cell, when needing to wake up battery management system
When system, control module controls the conducting of DC/DC power cell, and power battery battery management system is made to power, otherwise, control module
It controls DC/DC power cell to disconnect, power battery is not battery management system power supply.
The control module is control chip.
The control chip is single-chip microcontroller.
When needing to wake up battery management system, battery management system wakes up message, control to control module transmission timing
Module automatically wakes up mode according to wake-up message unlatching, and after timing reaches, control DC/DC power cell conducting is moved
Power battery is battery management system power supply by DC/DC power module；When not needing to wake up battery management system, battery management
System exports corresponding signal to control module, and control module controls DC/DC power cell according to the signal and disconnects, power battery
It does not power for battery management system.
The wake-up system further includes wireless communication module, and the battery management system and the wireless communication module connect
It connects, is used for transmission the related data of power battery.
The wake-up system further includes for carrying out the mobile terminal that communication interacts with the wireless communication module.
A kind of DC/DC converter, the control module including DC/DC power cell and for waking up battery management system, institute
Control module is stated for connect with battery management system, the control module control connects DC/DC power cell, when needing to wake up
When battery management system, control module controls the conducting of DC/DC power cell, and power battery battery management system is made to power, no
Then, control module control DC/DC power cell disconnects, and power battery is not battery management system power supply.
The control module is control chip.
The control chip is single-chip microcontroller.
When needing to wake up battery management system, battery management system wakes up message, control to control module transmission timing
Module automatically wakes up mode according to wake-up message unlatching, and after timing reaches, control DC/DC power cell conducting is moved
Power battery is battery management system power supply by DC/DC power module；When not needing to wake up battery management system, battery management
System exports corresponding signal to control module, and control module controls DC/DC power cell according to the signal and disconnects, power battery
It does not power for battery management system.
In battery management system wake-up system provided by the invention, inside DC/DC converter in addition to had on-off action and
It further include having control module except the power cell of transformer action, which connect with battery management system, and controls
DC/DC power cell is connected, when needing to wake up battery management system, control module controls the conducting of DC/DC power cell, makes
Power battery is battery management system power supply, and otherwise, control module controls DC/DC power cell and disconnects, and power battery is not battery
Management system power supply.Firstly, the module for playing the role of wake-up is arranged in DC/DC converter, in battery management system no longer
It needs that wake-up module is arranged, reduces the hardware and software cost of battery management system, become battery management system structure and control
It is simpler, the operation troubles rate of battery management system is reduced, the operational reliability of battery management system is improved.Moreover,
The control module and DC/DC power cell are two independent equipment, and control module is added in DC/DC converter can't be right
DC/DC power cell itself impacts, so, control module setting is easier to realize inside converter, moreover, also not
Too much influence can be caused to the structure of DC/DC converter.Then, since control module and DC/DC power cell are two only
Erect standby, power supply and the DC/DC power cell of control module are not in contact with, it is then not necessary to the operation of DC/DC power cell come for
Control module provides electric energy, and therefore, DC/DC power cell is without working long hours, when only battery management system being needed to need electric energy
Work is just run, the service life of DC/DC power cell is improved, moreover, reducing vehicle power consumption, is beneficial to energy conservation.Also,
It is not charged on the power circuit between DC/DC power cell and battery management system when battery management system does not need power supply,
That is the power circuit between DC/DC power cell and battery management system is no longer long charged, reduces and give vehicle band
The security risk come guarantees vehicle safety, to achieve the purpose that electric car is used safely.
Detailed description of the invention
Fig. 1 is electric energy transmission schematic diagram between power battery, DC/DC and battery management system；
Fig. 2 is the hardware structural diagram that battery management system wakes up system；
Fig. 3 is that battery management system wakes up system signal transmission schematic diagram.
Specific embodiment
Battery management system wakes up system embodiment
As shown in Fig. 2, it includes DC/DC converter and battery management system that battery management system, which wakes up system,.The wake-up system
The inventive point of system is DC/DC converter, includes DC/DC power cell in DC/DC converter, which is DC/DC change
Most basic component part, is made of power tube in parallel operation, realizes that on-off function and transformation function, power battery pass through DC/
DC power cell is powered for being electrically connected battery management system for battery management system.Since DC/DC power cell belongs to conventional skill
Art, just no longer to power cell, this part is described in detail the present embodiment, moreover, power battery can also pass through DC/DC function
For rate unit for being electrically connected other mobile units, such as monitoring device GPS etc., this part is equally not belonging to the protection of the application
Point, the present embodiment are also no longer described in detail.
For DC/DC converter other than including above-mentioned power cell, inside, which is also set up, is integrated with a control module, this reality
It applies in example, control module is control chip, and certainly, as other embodiments, control module, which can also be, has identical function
Other circuit hardware structures.The function of the control chip has for waking up battery management system.The control chip and cell tube
The connection of reason system, realizes the interaction of signal, moreover, the control chip also controls connection DC/DC power cell, for controlling power
Unit conducting or shutdown, and then realize whether power battery is battery management system power supply.
Further, in this embodiment control chip is single-chip microcontroller.In order to reduce power consumption, single-chip microcontroller selects low-power consumption
Single-chip microcontroller.Moreover, the reliable power supply in order to guarantee single-chip microcontroller, which selects the high-voltage electricity for being able to use power battery output
It can be used as working power, in this case, power battery can be directly for being electrically connected single-chip microcontroller.
The basic function of single-chip microcontroller is: when needing to wake up battery management system, control DC/DC power cell conducting makes
Power battery is battery management system power supply, and otherwise, control DC/DC power cell disconnects, and power battery is not battery management system
System power supply.
In addition, wake-up system further includes wireless communication module, battery management system and the nothing in order to realize and external communication
The connection of line communication module, is used for transmission the related data of power battery.Moreover, in order to make staff grasp power battery in real time
Data, also with mobile terminal (such as mobile phone) communication connection, staff arrived wireless communication module by mobile phone real time inspection
The related data of power battery.
Structure based on Fig. 2, Fig. 3 give the signal transmission relation schematic diagram of the system.As shown in figure 3, the system of wake-up
Including DC/DC converter 1, battery management system 2, single-chip microcontroller 3, DC/DC power cell 4, monitoring device GPS5, mobile phone 6 and move
Power battery 7.Power battery 4 is connect with DC/DC power cell 4 by high-voltage wiring harness, DC/DC converter 1 and battery management system 2
It is connected by rigid line and CAN line, single-chip microcontroller 3 and DC/DC power cell 4 are integrated in inside DC/DC converter 1, battery management
System 2 is connect with monitoring device GPS5 by CAN line, and monitoring device GPS5 is connect with mobile phone by 3G network, by mobile phone
Related APP check data.
Since vehicle is when powering on (when starting to charge) and in charging process, battery management system is by vehicle plumbic acid electricity
Therefore pond or charging gun power supply are not need power battery as battery management system power supply in charging.In other situations,
Such as: at the end of vehicle shuts down or charges, need power battery for battery management system power supply.Therefore, when vehicle powers on,
Battery management system is all logical by charging gun or vehicle lead-acid battery normal power supply, other equipment, such as monitoring device
The power supply of vehicle lead-acid battery is crossed, at this point, battery management system exports corresponding signal to single-chip microcontroller, single-chip microcontroller is according to the signal control
DC/DC power cell processed disconnects, and power battery can not be battery management system and other equipment by DC/DC power cell
Power supply.Moreover, power battery is not battery management system power supply in entire charging process.
When needing power battery is battery management system power supply, such as when vehicle is shut down or at the end of charging, electricity
Pond management system wakes up message to single-chip microcontroller transmission timing by CAN line, when single-chip microcontroller receives determining for battery management system transmission
When wake up message when, unlatching automatically wake up mode, vehicle only has single-chip microcontroller work at this time.When timing (timing according to
Actual requirement is set, and may be set to be 0, i.e. DC/DC power cell is immediately controlled according to message is waken up in single-chip microcontroller) it reaches
Afterwards, MCU driving DC/DC power cell work, DC/DC power cell by the high pressure converted of power battery be low pressure export to
Battery management system, monitoring device power supply.In addition, the data of power battery are passed through GPS or 3G network by monitoring device in real time
Mobile phone is sent to, so that client can monitor car status information in real time.When no longer need power battery be battery management system
System power supply when, battery management system give single-chip microcontroller send association message information, after single-chip microcontroller receives the message information, immediately or
Postpone certain time stopping driving DC/DC power cell, so that the output of DC/DC power cell stops, battery management system
The lower electricity because powering stopping, also, single-chip microcontroller enters the wake-up sent again from suspend mode until receiving battery management system
Until message.In addition, vehicle, in stopping process, single-chip microcontroller can also no longer drive DC/DC power cell, so that DC/
The output of DC power cell stops, battery management system lower electricity because powering stopping.
Above-mentioned operating mode is the long-time fortune that the long-play of existing battery management system is replaced with to single-chip microcontroller
Row.Single-chip microcontroller less energy-consuming, moreover, when single-chip microcontroller is run, DC/DC power cell no longer long-play.Reduce battery management
The hardware and software development cost of system, and high pressure between DC/DC power cell and battery management system and low voltage wiring harness be not
It is uncharged when needing to power for battery management system, to improve the safety of vehicle, reduce vehicle uses function
Consumption improves energy saving, so that the competitiveness of product in market further increases.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.Base of the invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in introduction according to the present invention
The model of shape, formula, parameter do not need to spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment carries out are still fallen in protection scope of the present invention.
DC/DC converter embodiment
The present embodiment provides a kind of DC/DC converters, are suitable for battery management system awakening technology field, still, also not
Exclusion has other applications.It is retouched in detail due to being made that the DC/DC converter in above-mentioned wake-up system embodiment
It states, the present embodiment just no longer illustrates.
Claims (10)
1. a kind of battery management system wakes up system, including DC/DC converter and battery management system, DC/DC converter include
DC/DC power cell, power battery are battery management system power supply by DC/DC power cell, which is characterized in that the DC/
The control module for waking up battery management system is also set up inside DC converter, the control module and battery management system connect
It connects, the control module control connection DC/DC power cell, when needing to wake up battery management system, control module controls DC/
The conducting of DC power cell, makes power battery battery management system power, and otherwise, it is disconnected that control module controls DC/DC power cell
It opens, power battery is not battery management system power supply.
2. battery management system according to claim 1 wakes up system, which is characterized in that the control module is control core
Piece.
3. battery management system according to claim 2 wakes up system, which is characterized in that the control chip is monolithic
Machine.
4. battery management system according to claim 1 wakes up system, which is characterized in that when needing to wake up battery management system
When system, battery management system wakes up message to control module transmission timing, and control module is called out automatically according to wake-up message unlatching
Mode of waking up controls the conducting of DC/DC power cell after timing reaches, and power battery is battery by DC/DC power module
Management system power supply；When not needing to wake up battery management system, battery management system exports corresponding signal to control module,
Control module controls DC/DC power cell according to the signal and disconnects, and power battery is not battery management system power supply.
5. battery management system according to claim 1 wakes up system, which is characterized in that the wake-up system further includes nothing
Line communication module, the battery management system are connect with the wireless communication module, are used for transmission the related data of power battery.
6. battery management system according to claim 5 wakes up system, which is characterized in that the wake-up system further includes using
In carrying out the mobile terminal that interacts of communication with the wireless communication module.
7. a kind of DC/DC converter, which is characterized in that the control including DC/DC power cell and for waking up battery management system
Molding block, the control module with battery management system for connecting, the control module control connection DC/DC power cell,
When needing to wake up battery management system, control module controls the conducting of DC/DC power cell, makes power battery battery management system
System power supply, otherwise, control module controls DC/DC power cell and disconnects, and power battery is not battery management system power supply.
8. DC/DC converter according to claim 7, which is characterized in that the control module is control chip.
9. DC/DC converter according to claim 8, which is characterized in that the control chip is single-chip microcontroller.
10. DC/DC converter according to claim 7, which is characterized in that when needing to wake up battery management system, electricity
Pond management system wakes up message to control module transmission timing, and control module automatically wakes up mode according to wake-up message unlatching,
After timing reaches, control DC/DC power cell conducting, power battery is battery management system by DC/DC power module
System power supply；When not needing to wake up battery management system, battery management system exports corresponding signal to control module, controls mould
Root tuber is disconnected according to signal control DC/DC power cell, and power battery is not battery management system power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370236.8A CN108964162A (en) | 2017-05-23 | 2017-05-23 | A kind of battery management system wake-up system and a kind of DC/DC converter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710370236.8A CN108964162A (en) | 2017-05-23 | 2017-05-23 | A kind of battery management system wake-up system and a kind of DC/DC converter |
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| CN108964162A true CN108964162A (en) | 2018-12-07 |
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| CN201710370236.8A Pending CN108964162A (en) | 2017-05-23 | 2017-05-23 | A kind of battery management system wake-up system and a kind of DC/DC converter |
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| CN110165738A (en) * | 2019-05-30 | 2019-08-23 | 深圳陆巡科技有限公司 | A kind of monitoring power control and high-voltage battery system |
| CN110417076A (en) * | 2019-06-20 | 2019-11-05 | 合肥澎湃能源技术有限公司 | Low-power consumption module and BMS for industry repacking vehicle |
| CN111361457A (en) * | 2018-12-26 | 2020-07-03 | 郑州宇通客车股份有限公司 | Vehicle and heating control method of power battery of vehicle |
| CN111469709A (en) * | 2019-01-23 | 2020-07-31 | 郑州宇通重工有限公司 | Vehicle, power battery monitoring device and DC/DC module awakening method |
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