CN109038715A - A kind of software and hardware combined battery charge controller of high-voltage lithium ion battery - Google Patents
A kind of software and hardware combined battery charge controller of high-voltage lithium ion battery Download PDFInfo
- Publication number
- CN109038715A CN109038715A CN201810804032.5A CN201810804032A CN109038715A CN 109038715 A CN109038715 A CN 109038715A CN 201810804032 A CN201810804032 A CN 201810804032A CN 109038715 A CN109038715 A CN 109038715A
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- control
- battery
- software
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 28
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 230000001012 protector Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract 1
- 238000013024 troubleshooting Methods 0.000 abstract 1
- 239000000178 monomer Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910018502 Ni—H Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- H02J7/0026—
-
- H02J7/0077—
-
- H02J7/0091—
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
Abstract
The present invention relates to a kind of software and hardware combined battery charge controllers of high-voltage lithium ion battery, are used for reliable charge control in-orbit to low orbit spacecraft high-voltage lithium ion battery, belong to aerospace craft power-supply system charge control technical field.The present invention uses based on software pressure limiting charge control, software and hardware combined charge control technology supplemented by hardware voltage control, it is controlled in software charge control using battery cell voltage, more redundancy charge control modes such as battery voltage control, ensure that power-supply system charging control function has troubleshooting capability under the conditions of long-term in-orbit Autonomous fault processing capacity or manual intervention, it can safely and reliably realize the charge control to high-voltage lithium ion battery group, effectively avoid over-charging of battery or charge less risk, extend the in-orbit service life of battery, it is suitable for the high reliability request of aerospace system.
Description
Technical field
Belong to aerospace craft power-supply system charge control technical field more particularly to a kind of high-voltage lithium ion battery is soft or hard
Part combines battery charge controller.
Background technique
Lithium ion battery has the advantages that light weight, small in size, self-discharge rate is low etc., is ideal power supply, at present
Replace ickel-cadmium cell and Ni-H cell to become spacecraft third generation energy-storage battery and is widely used in space industry.Single-unit lithium-ion electric
Pond monomer is unable to satisfy low orbit spacecraft high voltage bus demand, typically by battery cell it is in parallel after concatenated combination side again
Formula constitutes high-tension battery group.The electrochemical properties of lithium ion battery require that strict control must be carried out to charging process, battery
It overcharges or charge less will lead to battery premature failure, influence battery, or even jeopardize spacecraft power supply safety.
For the reliability for improving Li-ion batteries piles, extension low orbit spacecraft high-voltage lithium ion battery is in-orbit to use the longevity
Life, it is necessary to avoid over-charging of battery or charge less risk.Therefore, high-voltage lithium ion battery charge control technology is low orbit spacecraft battery
The key and core technology of group application.
Summary of the invention
The invention proposes a kind of software and hardware combined battery charge controllers of high-voltage lithium ion battery, in battery pack charging process
It is middle to realize to the charge control and charge protection of battery, guarantee battery without overcharging or charge less risk, improve in-orbit charge control therefore
Hinder processing capacity, effectively extends the in-orbit service life of battery.The present invention uses based on software pressure limiting charge control, hardware voltage
Software and hardware combined charge control mode supplemented by control believes the lithium-ion battery monomer voltage signal of acquisition, battery voltage
Number, temperature signal give cpu control circuit in real time and handled, according to CPU processing result generate charging control signal adjust electricity
The charging current of pond group, while charging is exported after giving the Li-ion batteries piles voltage of independent acquisition to hardware control circuit judgement
The charging current of Signal Regulation battery pack is controlled, realizes charge control and charge protection to battery.
To achieve the above object, present invention employs following technical solutions: a kind of high-voltage lithium ion battery is software and hardware combined
Battery charge controller, comprising: Acquisition Circuit, cpu circuit, hardware control circuit and switching circuit are controlled in the cpu circuit and driven
Dynamic circuit output end with switch execution circuit in switching circuit and connect, in cpu circuit monitoring circuit input end, output end respectively with
Host CPU control circuit in cpu circuit, control switching circuit connection in switching circuit, voltage control driving in hardware control circuit
Circuit output end is connect with switching execution circuit in switching circuit, control switching circuit output end and switching circuit in switching circuit
Middle switching execution circuit connection.
Further, in charge control technology proposed by the present invention: two sets of Acquisition Circuits and cpu circuit cold standby each other, firmly
Part control circuit and main part Acquisition Circuit, main part cpu circuit warm back-up each other.System works in main part Acquisition Circuit when initialization
With main part cpu control circuit state, setting monitoring circuit, in real time transports host CPU control circuit software in host CPU control circuit
Row state is monitored, and when host CPU control circuit software is operating abnormally and can not normally restore, monitoring circuit generates driving letter
System running state is switched to hardware voltage state of a control by number driving control switching circuit.Meanwhile the switching in switching circuit
Control circuit can receive from external command information, realize main part Acquisition Circuit, main part cpu circuit and backup Acquisition Circuit,
Switching between backup cpu circuit and hardware control circuit.
During the charging process, cpu circuit respectively judges battery cell voltage and battery voltage, to prevent battery
It overcharges, when any of both maximum monomer voltage and battery voltage meet full of condition, that is, generates charging control signal
It carries out full of control；To prevent battery charge less, battery cell voltage is set and battery voltage is full of voltage stagnant regions, works as battery
When monomer voltage and battery voltage are met full of voltage stagnant regions lower limit simultaneously, generates charging control signal recovery upper level and fill
Electric control.
Charge normal control judge while, to the battery cell voltage parameter, battery temperature parameter and over-voltage of acquisition
Protection point, overheat protector point are compared in real time, when maximum monomer voltage is greater than over-voltage protection point or battery temperature greater than excess temperature
When protection point, generates corresponding charging control signal realization and the charging termination of battery pack is controlled.
To avoid acquisition parameter from shaking influence to charge control, charging control is just carried out after meeting Rule of judgment continuous 10 times
System and every time complete control after to judge number be zeroed out handle count again.
Detailed description of the invention
Fig. 1 is the software and hardware combined battery charge controller circuit connection block diagram of high-voltage lithium ion battery of the embodiment of the present invention.
Fig. 2 is the cpu control circuit program flow diagram of the embodiment of the present invention.
Specific embodiment
The technical solution of invention is described in detail with reference to the accompanying drawing:
Fig. 1 is the software and hardware combined battery charge controller circuit connection block diagram of high-voltage lithium ion battery, in figure: high pressure lithium ion
Battery pack 1；Acquisition Circuit 2, including main Acquisition Circuit and standby Acquisition Circuit；Cpu circuit 3, including host CPU control circuit, master control
Driving circuit, standby cpu control circuit, standby control driving circuit and monitoring circuit processed；Hardware control circuit 4, including battery pack electricity
Acquisition Circuit, voltage control circuit and voltage is pressed to control driving circuit；Switching circuit 5, including control switching circuit and switching are held
Row circuit.
Totally 22 batteries are monomer series-connected forms by 2 modules for high-voltage lithium ion battery group 1, battery voltage scope 77V
~94.6V, wherein 1~11 comprising modules a of monomer, 12~22 comprising modules b of monomer.
Acquisition Circuit 2 and cpu circuit 3 are all made of cold standby Redundancy Design each other, and the two works independently.Wherein, acquisition electricity
Road 2 is realized using the electric resistance partial pressure combination instrument operational amplifier AD620 way of output, by battery cell voltage, battery voltage
Be that 0~5V voltage signal is exported to the cpu control circuit in cpu circuit 3 with battery temperature parameter transformation, to battery temperature into
When row acquisition, temperature sensor selects MF501 type precise temperature measurement negative temperature coefficient thermistor.
Cpu control circuit uses 80C32 microcontroller for control core, and 1 analog switch HS1-0546 is selected using 16 in front end
Send AD574 that analog quantity is converted to digital quantity after realizing the gating one by one of acquisition parameter, microcontroller, which in real time acquires battery, joins
Number is judged, and is compared with setting full of voltage, full of hysteresis voltage, over-voltage protection point and overheat protector point, real
Now to the charge control of battery pack and charge protection.When any of both maximum monomer voltage and battery voltage judge to meet
When full of voltage, generates charging control signal and reduce charging current, over-charging of battery can be effectively prevent；When battery cell voltage and electricity
When pond group voltage is met full of hysteresis voltage simultaneously, generates charging control signal and restore upper level charge control, can effectively prevent
Battery charge less；When largest battery monomer voltage is greater than over-voltage protection point, generates charging control signal realization and battery pack is filled
Electricity terminates control；When battery temperature parameter is greater than overheat protector point, charging of the charging control signal realization to battery pack is generated
Terminate control.
Hardware control circuit 4 is realized using pure hardware circuit mode, is the warm back-up of host CPU control circuit, is acquired in real time
The battery voltage of high-voltage lithium ion battery group is simultaneously compared with the fully charged pressure of setting, when battery voltage is greater than fully charged
When pressure, generates charging control signal and reduce charging current, over-charging of battery can be effectively prevent；Voltage is full of when battery voltage is less than
When, generate charging control signal increase charging current, battery charge less can be effectively prevent, for improve circuit anti-interference ability,
Setting is full of voltage stagnant regions in hardware control circuit 4, when battery voltage lower than stagnant regions lower limit or is greater than the stagnant regions upper limit
When just generate charging control signal adjust charging current.
Monitoring circuit in cpu circuit 3 uses house dog MAX692, in real time to host CPU control circuit software operating condition
It is monitored.When software is operating abnormally, house dog MAX692 causes microcontroller 80C32 and resets, and opens again after software initialization
Begin to execute program；When software is still operating abnormally, circuit is monitored by switching circuit 5, working state of system is switched into hardware
4 effective status of control circuit, charge control is realized by pure hardware circuit mode at this time.
Control switching circuit in switching circuit 5 also receives in addition to receiving the automatic command from monitoring circuit from outer
Then the instruction in portion is connect with switching execution circuit, automatic command and external command are all made of OC instruction types.It is wherein automatic
Instruction realizes that external command is realized using the driving circuit of two-stage PNP triode composition using dual redundant instruction circuit LB8169.
Switching execution circuit in switching circuit 5 uses 2JB0.5-1 type relay and alternative analog switch 4053, leads to
Cross charging control signal that control switching circuit realizes that host CPU circuit, standby cpu circuit and hardware control circuit 4 respectively generate it
Between switching.
Fig. 2 is cpu control circuit program flow diagram.It is charged the battery after initialization with high current, cpu control circuit
The battery cell voltage of acquisition and battery temperature parameter are judged in real time, when battery temperature is greater than overheat protector point or maximum
When monomer voltage is greater than over-voltage protection point, charge protection is implemented to battery and terminates battery charging, to avoid acquisition parameter in excess temperature
Protection point and over-voltage protection point nearby shake an influence, in charge control when meeting Rule of judgment continuous 10 times ability output phase
Inductive charging controls signal, and completes after control each to judge that number is zeroed out processing and starts counting again.
In charging process, to prevent the internal resistance of cell because charging current changes the influence to battery acquisition parameter, it is being full of
Bound is arranged in voltage control point, when cell voltage is greater than the fully charged pressure control point upper limit, generates charging control signal and reduces
Charging current generates charging control signal and increases charging current, simultaneously when cell voltage is less than fully charged pressure control point lower limit
When judging monomer voltage and battery voltage, software uses filtering measures, monomer or battery voltage continuous 10 times
Corresponding charging control signal is just generated when being all satisfied condition adjusts charging current.
Claims (7)
1. a kind of software and hardware combined battery charge controller of high-voltage lithium ion battery, comprising: Acquisition Circuit (2), cpu circuit (3), firmly
Part control circuit (4) and switching circuit (5), it is characterised in that: control driving circuit output end in the cpu circuit (3) and cut
Change switching execution circuit connection in circuit (5), in cpu circuit (3) monitoring circuit input end, output end respectively with cpu circuit (3)
Control switching circuit connects in middle host CPU control circuit, switching circuit (5), voltage control driving electricity in hardware control circuit (4)
Road output end is connect with switching execution circuit in switching circuit (5), control switching circuit output end and switching in switching circuit (5)
Switching execution circuit connection in circuit (5).
2. the software and hardware combined battery charge controller of a kind of high-voltage lithium ion battery according to claim 1, it is characterised in that: described
Acquisition Circuit (2), cpu circuit (3) contain master backup circuit, main part circuit and fallback circuit cold standby each other.
3. the software and hardware combined battery charge controller of a kind of high-voltage lithium ion battery according to claim 1, it is characterised in that: described
Cpu circuit (3) includes host CPU control circuit；The cpu control circuit uses 80C32 microcontroller for control core, and front end is adopted
Send AD574 that analog quantity is converted to digital quantity after the gating one by one for selecting 1 analog switch HS1-0546 realization acquisition parameter with 16, it is micro-
Controller in real time judges battery acquisition parameter, and with setting full of voltage, full of hysteresis voltage, over-voltage protection point and
Overheat protector point is compared, and realizes charge control and charge protection to battery pack.
4. the software and hardware combined battery charge controller of a kind of high-voltage lithium ion battery according to claim 1, it is characterised in that: described
Hardware control circuit (4) realizes the warm back-up each other with host CPU circuit using the monitoring circuit in cpu circuit (3), works as host CPU
Hardware control circuit (4) are automatically switched to when software fault.
5. the software and hardware combined battery charge controller of a kind of high-voltage lithium ion battery according to claim 1, it is characterised in that: described
Cpu circuit (3) is judged using full of upper voltage limit and full of lower voltage limit when full of control full of voltage.
6. according to the software and hardware combined battery charge controller of high-voltage lithium ion battery a kind of in claim 5, it is characterised in that: work as electricity
When cell voltage is met full of upper voltage limit, reduce the charging current to battery；It prescribes a time limit when cell voltage meets fully charged pressure, it is extensive
It is charged the battery again to higher level's high current.
7. the software and hardware combined battery charge controller of a kind of high-voltage lithium ion battery according to claim 1, it is characterised in that: hardware
Control circuit (4) in charge control using being judged full of hysteresis voltage, when battery voltage lower than stagnant regions lower limit or
Charging control signal is just generated when greater than the stagnant regions upper limit adjusts charging current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810804032.5A CN109038715A (en) | 2018-07-20 | 2018-07-20 | A kind of software and hardware combined battery charge controller of high-voltage lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810804032.5A CN109038715A (en) | 2018-07-20 | 2018-07-20 | A kind of software and hardware combined battery charge controller of high-voltage lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109038715A true CN109038715A (en) | 2018-12-18 |
Family
ID=64644702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810804032.5A Pending CN109038715A (en) | 2018-07-20 | 2018-07-20 | A kind of software and hardware combined battery charge controller of high-voltage lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109038715A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994713A (en) * | 2019-11-22 | 2020-04-10 | 上海空间电源研究所 | High-reliability three-level charging control device and method for lithium ion battery |
| CN111541226A (en) * | 2020-05-11 | 2020-08-14 | 上海空间电源研究所 | Overcharge-preventing control method for lithium ion storage battery for space |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201378812Y (en) * | 2009-02-23 | 2010-01-06 | 中山大洋电机股份有限公司 | Power-supply control device and ventilation and air-exchange device employing same |
| CN201887502U (en) * | 2010-11-23 | 2011-06-29 | 成都唐古拉科技有限公司 | Solar power device with overcharging protection circuit |
| CN106849253A (en) * | 2017-03-09 | 2017-06-13 | 上海空间电源研究所 | A kind of low orbit spacecraft high-voltage lithium ion battery equalising control device |
| CN107516918A (en) * | 2017-07-28 | 2017-12-26 | 上海空间电源研究所 | A kind of space lithium-ions battery charging excess temperature protection method |
-
2018
- 2018-07-20 CN CN201810804032.5A patent/CN109038715A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201378812Y (en) * | 2009-02-23 | 2010-01-06 | 中山大洋电机股份有限公司 | Power-supply control device and ventilation and air-exchange device employing same |
| CN201887502U (en) * | 2010-11-23 | 2011-06-29 | 成都唐古拉科技有限公司 | Solar power device with overcharging protection circuit |
| CN106849253A (en) * | 2017-03-09 | 2017-06-13 | 上海空间电源研究所 | A kind of low orbit spacecraft high-voltage lithium ion battery equalising control device |
| CN107516918A (en) * | 2017-07-28 | 2017-12-26 | 上海空间电源研究所 | A kind of space lithium-ions battery charging excess temperature protection method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994713A (en) * | 2019-11-22 | 2020-04-10 | 上海空间电源研究所 | High-reliability three-level charging control device and method for lithium ion battery |
| CN111541226A (en) * | 2020-05-11 | 2020-08-14 | 上海空间电源研究所 | Overcharge-preventing control method for lithium ion storage battery for space |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103579703B (en) | A kind of method for charging battery pack and system | |
| CN205377342U (en) | Power management system and aircraft of many rotors manned vehicle | |
| CN111934409B (en) | Automatic switching anti-misoperation system and method for standby battery | |
| CN101917044A (en) | Balance control method for lithium battery management system | |
| CN108110862A (en) | The charge-discharge control system of echelon lithium battery in communication base station | |
| CN105576776A (en) | Lithium ion storage battery power and communication DC power system | |
| CN102545322B (en) | Battery module, power supply system and battery power supply control method | |
| CN2922241Y (en) | Vehicle lithium ion storage cell equalizing protecting circuit | |
| CN109038715A (en) | A kind of software and hardware combined battery charge controller of high-voltage lithium ion battery | |
| CN203103992U (en) | Battery module management and control system | |
| CN103581938A (en) | Base station power management method, device and system and switching power supply | |
| CN111391713A (en) | Charging and discharging management system and method for series battery pack | |
| CN114628804A (en) | Control device and method for online maintenance of storage battery pack and power system | |
| CN109278588B (en) | Method for controlling temperature of lithium battery | |
| CN113954773B (en) | Commercial vehicle low-voltage power supply device | |
| CN205811622U (en) | A kind of charger | |
| CN105633940A (en) | Starting power supply system for unmanned helicopter | |
| CN106410893B (en) | A kind of spacecraft lithium battery charging controller method | |
| CN106684827A (en) | Over-discharge protection system and control method of lithium-ion storage battery pack | |
| CN203193337U (en) | Power battery pack discharge equalizer | |
| CN203368009U (en) | Lithium cell automatic circulating current control and protecting circuit for energy storage power station | |
| CN218896679U (en) | Control device for on-line maintenance of storage battery pack and power system | |
| CN109787327A (en) | A kind of lithium ionic cell module management circuit | |
| CN212258505U (en) | BMS battery management equipment suitable for energy storage cabinet | |
| CN115001114B (en) | Circuit, control method and system for keeping group voltage balance of storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
|
| RJ01 | Rejection of invention patent application after publication |