CN107452995A - Space high-voltage batteries information management bus group network system based on CAN - Google Patents
Space high-voltage batteries information management bus group network system based on CAN Download PDFInfo
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- CN107452995A CN107452995A CN201710718535.6A CN201710718535A CN107452995A CN 107452995 A CN107452995 A CN 107452995A CN 201710718535 A CN201710718535 A CN 201710718535A CN 107452995 A CN107452995 A CN 107452995A
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- 238000004146 energy storage Methods 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000004458 analytical method Methods 0.000 claims abstract description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 35
- 229910001416 lithium ion Inorganic materials 0.000 claims description 35
- 239000000178 monomer Substances 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 21
- 230000004224 protection Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000036461 convulsion Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H02J7/0021—
-
- 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
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
-
- 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 present invention relates to a kind of space high-voltage batteries information management bus group network system based on CAN, comprising：Energy-storage units, it is composed in series by multigroup high tension battery group；Multiple CAN child nodes, connection corresponding with each group high tension battery group respectively, monitor and manage corresponding high tension battery group；CAN parent nodes, it is connected, the monitoring information of each high tension battery group of timing receipt, is analyzed and processed with each CAN child nodes by CAN；Wherein, CAN parent nodes are connected with host computer, the host computer receives analysis processing result of the CAN parent nodes for the monitoring information of each group high tension battery group, and sends control instruction to parent node, and according to the control instruction energy-storage units are carried out with the control operation of discharge and recharge by parent node.The present invention solves the problems, such as the distributed management of high tension battery group, it is ensured that the reliability of information gathering and transmission, ensures the security of high tension battery group.
Description
Technical field
The present invention relates to a kind of information management system of space high-voltage batteries, in particular to one kind to be based on CAN
Space high-voltage batteries information management bus group network system, belong to technical field of information management.
Background technology
Application demand for high-voltage energy storage equipment, chain drive and electric bus to high pressure lithium-ions battery group, urgently
Need to solve the Information Management Problems of space high-voltage batteries.
It is therefore proposed that a kind of use distributed control mode, group is carried out to distributed node by CAN field bus techniques
Net, realize the information management bus group network system for being up to 1000V batteries.
The content of the invention
It is an object of the invention to provide a kind of space high-voltage batteries information management bus networking system based on CAN
System, solves the problems, such as the distributed management of high tension battery group, it is ensured that the reliability of information gathering and transmission, ensures high tension battery
The security of group.
To achieve the above object, it is total to provide a kind of space high-voltage batteries information management based on CAN by the present invention
Line group network system, suitable for space environment, comprising：Energy-storage units, it is connected in series and is formed by multigroup high tension battery group, it is every group high
Pressure batteries are connected in series by multiple lithium-ions battery monomers to be formed；Multiple CAN child nodes, respectively with each group high voltage electric storage
Pond group connects one to one, and monitors and manages corresponding high tension battery group；CAN parent nodes, by CAN respectively with it is each
CAN child nodes are connected, and each CAN child nodes of timing receipt and are integrated for the monitoring information of each high tension battery group
Analyzing and processing；Wherein, described CAN parent nodes are connected with host computer, and the host computer receives CAN parent nodes and stored for each group high pressure
The analysis processing result of the monitoring information of battery pack, and control instruction is sent to parent node, by parent node according to the control instruction
Energy-storage units are carried out with the control operation of discharge and recharge.
Each described CAN child nodes include：Voltage collection circuit, each lithium in high tension battery group corresponding to collection
The voltage data of ion accumulator monomer；Temperature collection circuit, each lithium ion in high tension battery group corresponding to collection store
The temperature data of battery cell；Balancing control circuit, each lithium-ions battery list in high tension battery group corresponding to control
Body keeps equal state in normal use；Child node MCU, it is female with voltage collection circuit, temperature collection circuit and CAN respectively
Node connects, the voltage data and temperature data of each lithium-ions battery monomer collected, and is determined by CAN
When send to CAN parent nodes.
Wherein, described voltage collection circuit uses difference sample circuit, and each lithium-ions battery monomer is divided
Differential amplification is pressed, obtains the voltage data of each lithium-ions battery monomer.
Wherein, described temperature collection circuit uses NTC thermistor, obtains the temperature of each lithium-ions battery monomer
Data.
Described CAN realizes isolation communication using Magnetic isolation transformer.
Described CAN parent nodes include：Parent node MCU, it is connected, receives with each CAN child nodes and host computer respectively
The voltage data and temperature number of lithium-ions battery monomer in the corresponding high tension battery group that each CAN child nodes collect
According to, and transmit to host computer；BMS units, it is connected with parent node MCU, the control that the host computer received according to parent node MCU is sent
System instruction, energy-storage units are carried out with the control operation of discharge and recharge；Multiple high voltage switch units, it is separately positioned on filling for energy-storage units
In electrical circuit and discharge loop, and it is connected with BMS units, is controlled by BMS units and close or disconnect, realized and energy-storage units are filled
Electricity or electric discharge.
Described high voltage switch unit includes：The soft start relay being connected with BMS units, and it is arranged on energy-storage units
Negative output terminal current divider.
Described high voltage switch unit includes the charging switching element being arranged on the charge circuit of energy-storage units, with BMS
Unit connects, and is specially：The charge relay for being arranged on the main positive loop of charging and being arranged on the main negative loop of charging, and it is right
The charging fuse of inductive charging relay configuration.
Described high voltage switch unit includes the discharge switching element being arranged on the discharge loop of energy-storage units, with BMS
Unit connects, and is specially：The electric discharge relay for being arranged on the main positive loop of electric discharge and being arranged on the main negative loop of electric discharge, it is corresponding to put
The electric discharge fuse of electrical relay configuration, and the pre-arcing relay being arranged on the main positive loop of electric discharge and pre- anti-electric resistance.
Described high voltage switch unit includes the interlocking drive control switch element of discharge and recharge and soft start, with BMS units
Connection, it is specially：It is arranged on the normally closed relay on the main negative loop of electric discharge and being arranged on the main positive loop of charging；It is mono- by BMS
Member control, during electric discharge, the normally closed relay on the main positive loop of charging is disconnected, during charging, disconnect the main negative loop of electric discharge
On normally closed relay, realize the mutual lock control of discharge and recharge.
In summary, the space high-voltage batteries information management bus networking provided by the present invention based on CAN
System, it ensure that the safety of the energy-storage units being composed in series by long string lithium ion single battery in the course of charging and discharging
Property, effectively improve life-span and the reliability of lithium-ions battery；A large amount of lithium-ions battery monomers are subjected to layering grouping management,
Management method is clearly simple, is easy to management and Project Realization, ensure that the reliability of realization means.
Brief description of the drawings
Fig. 1 is the knot of the space high-voltage batteries information management bus group network system based on CAN in the present invention
Structure schematic diagram；
Fig. 2 is the outside schematic diagram of the CAN child nodes in the present invention；
Fig. 3 is the control principle drawing of the CAN parent nodes in the present invention.
Embodiment
Below in conjunction with Fig. 1~Fig. 3, a preferred embodiment of the present invention is described in detail.
As shown in figure 1, it is the space high-voltage batteries information management bus group provided by the present invention based on CAN
Net system, suitable for space environment, comprising：Energy-storage units, it is connected in series and is formed by multigroup high tension battery group；Multiple CAN
Node, connected one to one respectively with each group high tension battery group, monitor and manage corresponding high tension battery group；The female sections of CAN
Point, it is connected respectively with each CAN child nodes by CAN, each CAN child nodes of timing receipt are for each high tension battery
The monitoring information of group, and carry out comprehensive analysis processing；Wherein, described CAN parent nodes are connected with host computer, and the host computer receives
CAN parent nodes for the monitoring information of each group high tension battery group analysis processing result, and to parent node send control instruction,
According to the control instruction energy-storage units are carried out with the control operation of discharge and recharge by parent node.
High tension battery group described in every group is connected in series by multiple lithium-ions battery monomers to be formed.
In a preferred embodiment of the invention, the space high-voltage batteries message tube based on CAN
The 10 groups of high tension battery being connected in series groups are set in reason bus group network system, every group of high tension battery group is stored by 24 lithium ions
Battery cell is composed in series；That is, it is composed in series energy-storage units by 240 lithium-ions battery monomers in the present embodiment.
This corresponding 10 groups of high tension battery groups, set 10 CAN child nodes, and each CAN child nodes respectively with each group high tension battery
Group connection, so as to which it is monitored and managed.This 10 CAN child nodes by CAN communication cable be connected in series after with
CAN parent nodes connect, and will regularly be born for monitoring information transmission to parent node, the parent node of each corresponding high tension battery group
Duty carries out comprehensive analysis processing to those monitoring informations and transmits result to host computer.Host computer sends to parent node and controlled
System instruction, carry out the control operation of discharge and recharge to high tension battery group according to the control instruction by parent node.
Wherein, it is connected after being connected in series due to 10 CAN child nodes by CAN communication cable with CAN parent nodes, because
This, CAN child nodes are fully able to be extended according to system requirements, and are not only only limited to the setting described in above-described embodiment
10 CAN child nodes.
As shown in Fig. 2 the external dimensions of each described CAN child nodes has following requirement：In connecting cable and water pipe
Afterwards, the length L of the CAN child nodes is no more than 850mm, and height H is no more than 235mm, when both sides do not install engaging lug
Width W1 is no more than 795mm, and width W2 when both sides are provided with engaging lug is no more than 860mm.And saved in each CAN
The front end of point is provided with handle, easy to operation.
Each described CAN child nodes include：Voltage collection circuit, each lithium in high tension battery group corresponding to collection
The voltage data of ion accumulator monomer；Temperature collection circuit, each lithium ion in high tension battery group corresponding to collection store
The temperature data of battery cell；Balancing control circuit, each lithium-ions battery list in high tension battery group corresponding to control
Body keeps equal state in normal use；Child node MCU (Microcontroller Unit, micro-control unit), respectively with
Voltage collection circuit, temperature collection circuit and the connection of CAN parent nodes, each lithium-ions battery monomer collected
Voltage data and temperature data, and sent by CAN timing to CAN parent nodes.
Wherein, described voltage collection circuit uses difference sample circuit, and each lithium-ions battery monomer is divided
Differential amplification is pressed, obtains the voltage data of each lithium-ions battery monomer.
Wherein, described temperature collection circuit uses NTC (Negative Temperature Coefficient, subzero temperature
Spend coefficient) thermistor, such as：Thermistor NTC-100K, obtain the temperature data of each lithium-ions battery monomer.
Wherein, described child node MCU uses STM32 single-chip microcomputers.
In a preferred embodiment of the invention, 10 set CAN child nodes each gather corresponding to high pressure store
The voltage data and temperature data of 24 lithium-ions battery monomers in battery pack, and the data collected are total by CAN
Line is transmitted to CAN parent nodes.
Described CAN realizes isolation communication using Magnetic isolation transformer, compared in other existing in-orbit spacecrafts
Non-isolated communication is used, the present invention can effectively improve the interference free performance during data transfer communications.
As shown in figure 3, described CAN parent nodes include：Parent node MCU, respectively with each CAN child nodes and host computer
Connection, receive the voltage number of the lithium-ions battery monomer in the corresponding high tension battery group that each CAN child nodes collect
According to and temperature data, and transmit to host computer；BMS (BATTERY MANAGEMENT SYSTEM, battery management system) unit,
It is connected with parent node MCU, the control instruction that the host computer received according to parent node MCU is sent, charge and discharge is carried out to energy-storage units
The control operation of electricity；Multiple high voltage switch units, are separately positioned in the charge circuit and discharge loop of energy-storage units, and with
BMS units connect, and are controlled by BMS units and close or disconnect, realize the charge or discharge to energy-storage units.
Wherein, described parent node MCU uses STM32 single-chip microcomputers.
Described high voltage switch unit includes：The soft start relay SK1 being connected with BMS units, and it is arranged on energy storage
The current divider of the negative output terminal of unit.
Wherein, described current divider carries out current acquisition using model FL2-150A-75mV current divider, reaches -100
~100mV detection range, error≤± 0.5%FS, measurable ± 200A electric current.
Described high voltage switch unit includes the charging switching element being arranged on the charge circuit of energy-storage units, with BMS
Unit connects, and is specially：The charge relay K3 being arranged on the main positive loop of charging, the charging being arranged on the main negative loop of charging
Relay K4, and the charging fuse of corresponding charge relay configuration.
Wherein, described charge relay K3 and K4 use EVR100A-24S type relays, can prevent because of relay adhesion
And it is unable to normal turn-off.K3.1 and K4.1 in Fig. 3 are charge relay K3 and K4 main contacts respectively.
Wherein, described charging fuse uses 35A fuses, because charge circuit can bear below 35A electric current, when
When the electric current of charge circuit is more than 35A, the fuse of fuse can disconnect, and have the function that short-circuit safeguard protection.
Described high voltage switch unit includes the discharge switching element being arranged on the discharge loop of energy-storage units, with BMS
Unit connects, and is specially：The electric discharge relay K1 being arranged on the main positive loop of electric discharge, the electric discharge being arranged on the main negative loop of electric discharge
Relay K2, the pre-arcing relay SK1.1 and pre- anti-electric resistance RS being arranged on the main positive loop of electric discharge, and corresponding electric discharge after
The electric discharge fuse of electrical arrangement.
Wherein, described electric discharge relay K1 and K2 use EVR100A-24S type relays, can prevent because of relay adhesion
And it is unable to normal turn-off.K1.1 and K2.1 in Fig. 3 are electric discharge relay K1 and K2 main contacts respectively.
Wherein, described pre-arcing relay SK1.1 uses EVR100A-24S type relays, and pre-arcing resistance RS is used
The resistance of the 100W power of RARA IRH120 51R J-types, for being pre-charged at electric discharge initial stage for load, prevent load capacitive from hindering
Anti- momentary breaks.
Wherein, described electric discharge fuse uses rated current as 150A fuses, because discharge loop can bear 180A
Following electric current, when the electric current of discharge loop is more than 180A, the fuse of fuse can disconnect, and reach short-circuit safeguard protection
Effect.
Described high voltage switch unit includes the interlocking drive control switch element of discharge and recharge and soft start switch, with BMS
Unit connects, and is specially：The normally closed relay K8 being arranged on the main negative loop of electric discharge, and be arranged on the main positive loop of charging
Normally closed relay K9；Being controlled by BMS units, during electric discharge so that the normally closed relay K9 on the main positive loop of charging disconnects,
During charging so that the normally closed relay K8 on the main negative loop of electric discharge disconnects, so as to realize the mutual lock control of discharge and recharge.
Described high voltage switch unit is respectively provided with excessively stream and overvoltage protection.When the electric current flowed through exceedes current setting value
20%, when the duration is more than 10ms, BMS unit starting overcurrent protections, output cut-out is completed in 390ms.And pass through open circuit
Device external control order, can reset and rework.
In addition, as shown in figure 3, also included in described CAN parent nodes：Jerk state-detection switchs K5；Charge and discharge switch
State and it is soft open switched diffusion contact K10-K14 so as to and meanwhile meet BMS to discharge and recharge, the need of soft start switch state-detection
Ask；The outside enabled switch K15 and K16 of discharge and recharge extension.
Further, fuse (FUSE1~FUSE4) is respectively provided with the positive and negative output end of described energy-storage units, realizes system
System short-circuit protection.When the output current of energy-storage units exceedes 1.5 times of setting electric current, be considered as short circuit, fuse disconnect and and
When cut off the positive and negative output of energy-storage units, break time is no more than 400ms, and fuse can rework after changing insurance.
In summary, the space high-voltage batteries information management bus networking provided by the present invention based on CAN
System, it ensure that the safety of the energy-storage units being composed in series by long string lithium ion single battery in the course of charging and discharging
Property, effectively improve life-span and the reliability of lithium-ions battery；A large amount of lithium-ions battery monomers are subjected to layering grouping management,
Management method is clearly simple, is easy to management and Project Realization, ensure that the reliability of realization means.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of space high-voltage batteries information management bus group network system based on CAN, it is characterised in that be applied to
Space environment, comprising：
Energy-storage units, it is connected in series and is formed by multigroup high tension battery group, every group of high tension battery group is by multiple lithium ion electric power storages
The monomer series-connected connection composition in pond；
Multiple CAN child nodes, connected one to one respectively with each group high tension battery group, monitor and manage corresponding high voltage electric storage
Pond group；
CAN parent nodes, it is connected respectively with each CAN child nodes by CAN, each CAN child nodes of timing receipt are for each
The monitoring information of individual high tension battery group, and carry out comprehensive analysis processing；
Wherein, described CAN parent nodes are connected with host computer, and the host computer receives CAN parent nodes for each group high tension battery
The analysis processing result of the monitoring information of group, and control instruction is sent to parent node, by parent node according to the control instruction to storage
Energy unit carries out the control operation of discharge and recharge.
2. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 1, it is special
Sign is that each described CAN child nodes include：
Voltage collection circuit, the voltage data of each lithium-ions battery monomer in high tension battery group corresponding to collection；
Temperature collection circuit, the temperature data of each lithium-ions battery monomer in high tension battery group corresponding to collection；
Balancing control circuit, each lithium-ions battery monomer in high tension battery group corresponding to control are protected in normal use
Hold equal state；
Child node MCU, it is connected respectively with voltage collection circuit, temperature collection circuit and CAN parent nodes, what is collected is each
The voltage data and temperature data of individual lithium-ions battery monomer, and sent by CAN timing to CAN parent nodes.
3. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 2, it is special
Sign is that described voltage collection circuit uses difference sample circuit, and partial pressure difference is carried out to each lithium-ions battery monomer
Amplification, obtain the voltage data of each lithium-ions battery monomer.
4. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 2, it is special
Sign is that described temperature collection circuit uses NTC thermistor, obtains the temperature data of each lithium-ions battery monomer.
5. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 1, it is special
Sign is that described CAN realizes isolation communication using Magnetic isolation transformer.
6. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 2, it is special
Sign is that described CAN parent nodes include：
Parent node MCU, it is connected respectively with each CAN child nodes and host computer, receives the correspondence that each CAN child nodes collect
High tension battery group in lithium-ions battery monomer voltage data and temperature data, and transmit to host computer；
BMS units, it is connected with parent node MCU, the control instruction that the host computer received according to parent node MCU is sent, to energy storage
Unit carries out the control operation of discharge and recharge；
Multiple high voltage switch units, are separately positioned in the charge circuit and discharge loop of energy-storage units, and connect with BMS units
Connect, controlled by BMS units and close or disconnect, realize the charge or discharge to energy-storage units.
7. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 6, it is special
Sign is that described high voltage switch unit includes：The soft start relay being connected with BMS units, and it is arranged on energy-storage units
Negative output terminal current divider.
8. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 6, it is special
Sign is that described high voltage switch unit includes the charging switching element being arranged on the charge circuit of energy-storage units, mono- with BMS
Member connection, it is specially：The charge relay for being arranged on the main positive loop of charging and being arranged on the main negative loop of charging, and correspondingly
The charging fuse of charge relay configuration.
9. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 6, it is special
Sign is that described high voltage switch unit includes the discharge switching element being arranged on the discharge loop of energy-storage units, mono- with BMS
Member connection, it is specially：The electric discharge relay for being arranged on the main positive loop of electric discharge and being arranged on the main negative loop of electric discharge, corresponding electric discharge
The electric discharge fuse of relay configuration, and the pre-arcing relay being arranged on the main positive loop of electric discharge and pre- anti-electric resistance.
10. the space high-voltage batteries information management bus group network system based on CAN as claimed in claim 6, its
It is characterised by, described high voltage switch unit includes the interlocking drive control switch element of discharge and recharge and soft start, with BMS units
Connection, it is specially：It is arranged on the normally closed relay on the main negative loop of electric discharge and being arranged on the main positive loop of charging；It is mono- by BMS
Member control, during electric discharge, the normally closed relay on the main positive loop of charging is disconnected, during charging, disconnect the main negative loop of electric discharge
On normally closed relay, realize the mutual lock control of discharge and recharge.
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| CN201710718535.6A CN107452995B (en) | 2017-08-21 | 2017-08-21 | CAN bus-based space high-voltage storage battery information management bus networking system |
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| CN109818393A (en) * | 2019-01-23 | 2019-05-28 | 宁德时代新能源科技股份有限公司 | Pre-charging circuit and pre-charging method of high-voltage battery pack |
| CN112874326A (en) * | 2021-01-18 | 2021-06-01 | 华霆（合肥）动力技术有限公司 | Voltage balancing device, power supply system and electric vehicle |
| CN113346596A (en) * | 2021-07-21 | 2021-09-03 | 上海空间电源研究所 | Charging and discharging interlocking control circuit and control method for space lithium battery pack |
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