CN206106977U - Electric automobile power battery energy management system - Google Patents
Electric automobile power battery energy management system Download PDFInfo
- Publication number
- CN206106977U CN206106977U CN201621101859.2U CN201621101859U CN206106977U CN 206106977 U CN206106977 U CN 206106977U CN 201621101859 U CN201621101859 U CN 201621101859U CN 206106977 U CN206106977 U CN 206106977U
- Authority
- CN
- China
- Prior art keywords
- bms
- plate
- voltage
- electric automobile
- automobile power
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an electric automobile power battery energy management system, including the BMS mainboard, the BMS high -voltage switch board, a BMS slave plate, the 2nd BMS slave plate and manual service switch MSD, the BMS mainboard passes through internal bus CAN_L and CAN_H is connected with the BMS high -voltage switch board, a BMS slave plate is connected with the 2nd BMS slave plate, a BMS slave plate is connected to internal bus CAN_H, the 2nd BMS slave plate is connected to internal bus CAN_L, a BMS slave plate and the 2nd BMS slave plate are connected to BMS high -voltage switch through manual service switch MSD, the BMS mainboard is through first outside CAN interface connection machine controller, vehicle control unit, combination meter, on -vehicle charger. The utility model discloses a high -efficient reliable work of electric automobile power battery system, and the vehicle control tactics obtain the effective implementation, can make the safety coefficient of battery protected better moreover.
Description
Technical field
This utility model is related to a kind of electric automobile power battery management technique, more particularly to a kind of electric powered motor electricity
Pond EMS.
Background technology
Electrokinetic cell is originated as the energy of electric automobile, defeated with battery management system (BMS) composition electrokinetic cell system
Go out high voltage electric energy.Battery management system be set of cells is carried out comprehensive high-efficiency safety management, be electric automobile key technology it
One.Power battery management system (BMS) is each to electrokinetic cell system as the systematized management tool of electric automobile energy storage device
The realization of item function and the execution of integrated vehicle control tactics are most important, further investigation are launched to it very necessary with development.
Research currently for power battery management system focuses mostly in the collection of voltage, electric current and temperature, set of cells
The contents such as estimation, the heat management of balanced, state-of-charge (SOC) and health status (SOH).This technology stresses electrokinetic cell management system
The content of energy management in system and security protection, battery management system is realized upper and lower Electricity Functional, system mode redirect management,
Charge function and security function launch research, for BMS exploitations have larger engineering application value.
Battery management system (bms) essence is to the high voltage electric energy of electrokinetic cell output in electric automobile power driven system
Each high voltage component transmission, conversion carry out systematized management, and this technology is the electrokinetic cell system in main engine plants' exploitation electric automobile
The important content of system concern, the exploitation design for power battery management system provides reference.
Utility model content
The technical problems to be solved in the utility model is, there is provided a kind of electric automobile power battery EMS,
The work of electric automobile power battery system high efficient and reliable is not only realized, and integrated vehicle control tactics are effectively performed, Er Qieneng
The security system for enough making battery is provided better protection against.
To solve above-mentioned technical problem, this utility model provides following technical scheme：A kind of electric automobile power battery energy
Amount management system, including BMS mainboards, BMS hardboards, a BMS are from plate, the 2nd BMS from plate and Manual maintenance switch MSD,
The BMS mainboards are connected by internal bus CAN_L and CAN_H with BMS hardboards, a BMS from plate and the 2nd BMS from
Plate connects, and a BMS is connected to internal bus CAN_H from plate, and the 2nd BMS is connected to internal bus CAN_L from plate,
From plate and the 2nd BMS, from plate, manually service switch MSD is connected to BMS high-voltage switch gears to first BMS.
Further, BMS mainboards are provided with the first outside CAN interface, are realized and motor control by the first outside CAN interface
Device processed, the data communication between entire car controller, combination instrument, onboard charger.
Further, the BMS mainboards are provided with the second outside CAN interface, are supervised by the second outside CAN interface
Control, demarcate and write with a brush dipped in Chinese ink software.
Further, also including circuit unit BDU, the circuit unit BDU is arranged on Manual maintenance switch MSD and BMS
Between hardboard, and the BDU is controlled by BMS mainboards simultaneously.
Further, the BMS mainboards are the core controller of the battery management system, and the BMS mainboards are used for total
The information of voltage/total current, the calculating of real-time state-of-charge, fault diagnosis, the real-time control to main relay and storage.
Further, the BMS hardboards include：
For detecting the current detecting unit of battery power bus current；
For detecting the input of battery-end total voltage, cell load end total voltage, cathode contact device terminal voltage and charging quickly
The voltage detection unit of voltage；
For detecting the insulation of the state of electrokinetic cell system insulation resistance resistance and car load high-pressure system high-voltage interlocking
The detector unit of resistance detection and high-voltage interlocking state；
For the electric control list up and down of work or park mode to be switched within the given time according to demands of individuals
Unit；
For being realized preventing the pre-charge control unit of the pre-charge process of transient impact according to high pressure power up requirement；
For carrying out the ampere-hour integral unit of ampere-hour integration according to power bus electric current；
And for realizing to quick charge, the charging control unit of the control of trickle charge function.
Further, a BMS is same from the combination of plate and function phase from plate and the 2nd BMS, is used to realize single
Voltage, electric current, the collection of temperature signal in battery modules and report.
After above-mentioned technical proposal, this utility model at least has the advantages that：
(1) angle from energy management and security protection of this utility model system have studied battery management system (bms)
Energy conservation, and consider the control strategy of car load aspect；
(2) this utility model intactly analyzed and researched electrokinetic cell system high-voltage safety management and troubleshooting arrange
Apply；Particularly high pressure power-on and power-off sequential；
(3) this utility model combines substantial amounts of experimental data, and real vehicle demonstrates the reliability of electrokinetic cell energy management, has
There is certain application reference value.
Description of the drawings
Fig. 1 is a kind of overall architecture figure of electric automobile power battery EMS of this utility model.
Fig. 2 is a kind of normal height of the safety protecting method of electric automobile power battery EMS of this utility model
Pressure electrifying timing sequence figure.
Fig. 3 is a kind of normal height of the safety protecting method of electric automobile power battery EMS of this utility model
The electric sequential chart of pressure.
Fig. 4 is a kind of urgent height of the safety protecting method of electric automobile power battery EMS of this utility model
The single sequential chart of pressure.
Fig. 5 is that a kind of this utility model safety protecting method of electric automobile power battery EMS fills soon stream
Cheng Tu.
Fig. 6 is a kind of trickle charge stream of the safety protecting method of electric automobile power battery EMS of this utility model
Cheng Tu.
Fig. 7 is that a kind of high pressure of the safety protecting method of electric automobile power battery EMS of this utility model is mutual
Lock loop HVIL schemes.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine, below in conjunction with the accompanying drawings the application is described in further detail with specific embodiment.
As shown in figure 1, a kind of electric automobile power battery EMS of this utility model offer, including BMS mainboards,
, from plate, the 2nd BMS from plate and Manual maintenance switch MSD, the BMS mainboards pass through internal bus for BMS hardboards, a BMS
CAN_L and CAN_H is connected with BMS hardboards, and a BMS is connected with the 2nd BMS from plate from plate, and a BMS is from plate
Internal bus CAN_H is connected to, the 2nd BMS is connected to internal bus CAN_L from plate, and a BMS is from plate and second
From plate, manually service switch MSD is connected to BMS high-voltage switch gears to BMS.
BMS mainboards are provided with the first outside CAN interface, are realized and electric machine controller, car load by the first outside CAN interface
Data communication between controller, combination instrument, onboard charger.BMS mainboards are provided with the second outside CAN interface, by
Two outside CAN interfaces are monitored, demarcate and write with a brush dipped in Chinese ink software.
The system also includes circuit unit BDU, and it is high that the circuit unit BDU is arranged on Manual maintenance switch MSD and BMS
Between pressing plate, the BDU is controlled by BMS mainboards simultaneously.
Wherein, BMS mainboards mainly realize BMS strategy computings and perform work(as the core controller of battery management system
Can, including：The information of total voltage/total current, the calculating of real-time state-of-charge, fault diagnosis, the real-time control to main relay
System and store function.
Hardboard is accomplished that the functional design of application layer software, including：Current sense function, detects battery power bus
Electric current, starts when current detecting failure and reports to the police；Voltage detecting function, detection battery-end total voltage, cell load end total voltage,
Cathode contact device terminal voltage and charging quickly input voltage, start when voltage detecting failure and report to the police；Insulation resistance is detected and high
The detection function of pressure interlocking state, detects the shape of electrokinetic cell system insulation resistance resistance and car load high-pressure system high-voltage interlocking
State, should report to the police when insulation fault and high-voltage interlocking failure is detected；Power-on and power-off control function, according to demands of individuals given
Work or park mode are switched in time；Preliminary filling electric control, realizes preventing transient impact according to high pressure power up requirement
Pre-charge process；Ampere-hour is integrated, and according to power bus electric current, carries out ampere-hour integration；And charge control, realize to quick charge
And the control of trickle charge function.
BMS includes a BMS from plate and the 2nd BMS from plate from plate, and BMS mainly realizes various signals (voltage, electricity from plate
Stream, temperature) acquisition function, including：Realize the voltage in single battery modules, electric current, the collection of temperature signal and report；
In the case that equalization function is performed, equalization operation is carried out to the battery core in single battery modules.
For the apparent enforcement function of this utility model system, as shown in Fig. 2 to Fig. 7, this utility model provides a kind of electricity
Electrical automobile electrokinetic cell energy security means of defence, it is characterised in that including the control of electricity under control method, the high pressure of electricity on high pressure
Method processed, the detection method of high-voltage interlocking state, the control method filled soon, the control method of trickle charge and high-voltage interlocking state
Detection method, wherein:
As shown in Fig. 2 on the high pressure during the control method of electricity, to the car load in electricity on the normal high pressure of electric automobile
Controller, integrated power unit, inverter, battery management system this four control nodes have made the requirement in sequential, and
It is required that key key on/Crank start to complete electricity on normal high pressure in rear 1s, electric machine controller is entered before precharge is completed
Ready patterns, after the completion of precharge, entire car controller VCU notifies that instrument shows ready, and its detailed process is：Key is pushed
Key on/Crank gears, entire car controller VCU is waken up rear text of transmitting messages toward on CAN lines, and asks closed high interlocking loop
The low pressure main relay for making energy line and entire car controller VCU of HVIL, while whether monitor high-voltage interlocking loop HVIL normal；It is whole
Vehicle controller VCU is completed after corresponding operating, and electric machine controller IPU, DC/DC changer, battery management system BMS are waken up simultaneously
Transmit messages text to confirm the normal of communication；Under normal circumstances, battery management system BMS enters self-inspection link：Monitoring high-voltage interlocking
Loop HVIL and calculating insulation resistance value, subsequently into holding state；Subsequently entire car controller VCU asks battery management system
BMS closed high main relays, battery management system BMS is received and main negative relay, pre-charge-relay is respectively closed after request,
Then the voltage at pre-charge-relay end is detected, after battery total voltage reaches 90%, is then pre-charged successfully, the positive relay of closure master
Device, disconnects pre-charge-relay, electricity success on high pressure；
Under the high pressure control method of electricity include it is electric under electric and urgent high pressure under normal high pressure, as shown in figure 3, it is described just
Often electricity is specially under high pressure：Key is pushed after state key off gears, and entire car controller VCU request electric machine controller IPU leave
Mode of operation (TorqCtrl) enters ready mode (ready)；Electric machine controller IPU is entered after ready mode (ready), makes work(
Rate components and parts decline power, and in addition entire car controller VCU requests DC/DC changers leave mode of operation (buck) and enter wait mould
Formula (standby)；DC/DC changers closed communication and standby mode is entered, in addition, battery management system BMS disconnects main relay
Device, subsequent electric machine controller IPU is also into standby mode；Treat entire car controller VCU disconnect high-voltage interlocking loop HVIL, low pressure after
Electrical equipment, DC/DC changers, electric machine controller, battery management system BMS and entire car controller VCU enter sleep pattern；
As shown in figure 4, electricity is specially under the urgent high pressure：Entire car controller VCU sends urgent lower electricity instruction, request
DC/DC changers enter standby mode, and electric machine controller IPU enters failure mode；Subsequently entire car controller VCU asks battery
Management system BMS disconnects high-voltage relay, high-voltage interlocking loop HVIL, and DC/DC changers enter standby mode；Then car load control
Device VCU requests electric machine controller IPU processed carries out remaining electricity and releases；If key is in key off states, entire car controller VCU
Other nodes are can't detect into after sleep pattern in electric machine controller IPU, DC/DC changer and battery management system BMS
Signal also into sleep pattern；
As shown in figure 5, the control method filled soon is specially：Charger is accessed and fills interface soon, and battery is waken up laggard
Enter holding state, 12V low pressure is exported immediately and CAN communication is exported, wake up battery management system BMS, then battery management system
BMS carries out self-inspection with the presence or absence of failure, if existing, into fault mode process；If it is not, then battery management system BMS is entered
Electricity, battery management system BMS precharge in waiting state, and entire car controller VCU request high pressure；Battery management system BMS is complete
Into electricity on laggard horizontal high voltage is pre-charged, then whether electricity completes on battery management system BMS detections high pressure, if not completing, electricity
Pond management system BMS is into fault mode process；If completing, entire car controller VCU allows to charge to enable and opens, cell tube
Reason system BMS closes charge relay, and now electrokinetic cell is in quick-charge state；After battery is full of, battery stops charging,
Battery management system BMS disconnects charge relay, into resting state, charging complete；
As shown in fig. 6, the control method of the trickle charge is specially：Charger is accessed and is waken up and in standby shape after power supply
State, then exports CAN communication and 12V low pressure wakes up battery management system BMS, and battery management system BMS carries out self-inspection, if existing
Failure, then into fault mode process；If there is no failure, into standby mode, then entire car controller VCU sends high pressure
Power up commands, battery management system BMS is performed electric on high pressure and is detected that whether electricity is successful on high pressure, enters failure if unsuccessful
Tupe, battery management system BMS waits the charge command that entire car controller VCU sends if success；Entire car controller VCU
Send after allowing to charge, battery management system BMS closes charge relay and enables while opening and charging, electrokinetic cell is entered and filled
Electricity condition；When battery is fully charged, battery management system BMS charge closings enable, battery stop charge, order disconnect charge after
Electrical equipment, entire car controller VCU sends instructions and exits charge mode, and battery management system BMS enters holding state；
HVIL figures in high-voltage interlocking loop as shown in Figure 7, the detection method of the high-voltage interlocking state is specially：Collision is opened
After pass is triggered, battery management system BMS forces to disconnect high-voltage interlocking loop HVIL and triggering emergency power off status signal, car load
Controller VCU is received after the HVIL cut-off signals of high-voltage interlocking loop, and request battery management system BMS disconnects relay, cell tube
Reason system BMS receives entire car controller VCU requests, sends order and disconnects main relay, and reporting fault signal.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is understood that can carry out to these embodiments in the case of without departing from principle of the present utility model and spirit various etc.
The change of effect, modification, replace and modification, scope of the present utility model is limited by claims and its equivalency range.
Claims (7)
1. a kind of electric automobile power battery EMS, it is characterised in that including BMS mainboards, BMS hardboards, first
BMS from plate, the 2nd BMS from plate and Manual maintenance switch MSD, the BMS mainboards by internal bus CAN_L and CAN_H with
BMS hardboards connect, and a BMS is connected with the 2nd BMS from plate from plate, and a BMS is connected to internal bus from plate
CAN_H, the 2nd BMS are connected to internal bus CAN_L from plate, a BMS from plate and the 2nd BMS from plate manually
Service switch MSD is connected to BMS high-voltage switch gears.
2. electric automobile power battery EMS according to claim 1, it is characterised in that set on BMS mainboards
There is the first outside CAN interface, realized and electric machine controller, entire car controller, combination instrument, car by the first outside CAN interface
Carry the data communication between charger.
3. electric automobile power battery EMS according to claim 1, it is characterised in that the BMS mainboards
The second outside CAN interface is provided with, by the second outside CAN interface software is monitored, demarcates and writes with a brush dipped in Chinese ink.
4. electric automobile power battery EMS according to claim 1, it is characterised in that also including circuit list
First BDU, the circuit unit BDU is arranged between Manual maintenance switch MSD and BMS hardboard, and the BDU receives BMS simultaneously
The control of mainboard.
5. electric automobile power battery EMS according to claim 1, it is characterised in that the BMS mainboards
For the core controller of the battery management system, the BMS mainboards are used for information, the real-time lotus of total voltage/total current
Electricity condition calculating, fault diagnosis, the real-time control to main relay and storage.
6. electric automobile power battery EMS according to claim 1, it is characterised in that the BMS high pressure
Plate includes：
For detecting the current detecting unit of battery power bus current；
For detecting battery-end total voltage, cell load end total voltage, cathode contact device terminal voltage and charging quickly input voltage
Voltage detection unit；
For detecting the insulation resistance of the state of electrokinetic cell system insulation resistance resistance and car load high-pressure system high-voltage interlocking
Detection and the detector unit of high-voltage interlocking state；
For the electric control unit up and down of work or park mode to be switched within the given time according to demands of individuals；
For being realized preventing the pre-charge control unit of the pre-charge process of transient impact according to high pressure power up requirement；
For carrying out the ampere-hour integral unit of ampere-hour integration according to power bus electric current；
And for realizing to quick charge, the charging control unit of the control of trickle charge function.
7. electric automobile power battery EMS according to claim 1 a, it is characterised in that BMS
It is same from the combination of plate and function phase from plate and the 2nd BMS, it is used to realize voltage, electric current, the temperature letter in single battery modules
Number collection and report.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621101859.2U CN206106977U (en) | 2016-09-30 | 2016-09-30 | Electric automobile power battery energy management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621101859.2U CN206106977U (en) | 2016-09-30 | 2016-09-30 | Electric automobile power battery energy management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206106977U true CN206106977U (en) | 2017-04-19 |
Family
ID=58528099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621101859.2U Expired - Fee Related CN206106977U (en) | 2016-09-30 | 2016-09-30 | Electric automobile power battery energy management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206106977U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379188A (en) * | 2016-09-30 | 2017-02-08 | 华南理工大学 | Energy management system for power battery of electric automobile and safety protection method |
| CN107364359A (en) * | 2017-08-01 | 2017-11-21 | 华南理工大学 | A kind of extremely low electric automobile power battery management method of oneself power consumption |
| CN107599857A (en) * | 2017-08-24 | 2018-01-19 | 华南理工大学 | A kind of pure electric automobile charging system and charging method based on lithium battery |
| CN108100201A (en) * | 2018-01-25 | 2018-06-01 | 广西师范大学 | A kind of electronic high-voltaghe compartment peculiar to vessel |
| CN110188373A (en) * | 2019-04-11 | 2019-08-30 | 汉腾汽车有限公司 | A kind of positive relay switch control method of power battery master |
| CN110920462A (en) * | 2019-11-15 | 2020-03-27 | 金华职业技术学院 | Integrated system for vehicle control and battery control |
| WO2020098798A1 (en) * | 2018-11-16 | 2020-05-22 | 宁德时代新能源科技股份有限公司 | Conversion circuit, battery equalization system, and battery management system |
-
2016
- 2016-09-30 CN CN201621101859.2U patent/CN206106977U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379188A (en) * | 2016-09-30 | 2017-02-08 | 华南理工大学 | Energy management system for power battery of electric automobile and safety protection method |
| CN107364359A (en) * | 2017-08-01 | 2017-11-21 | 华南理工大学 | A kind of extremely low electric automobile power battery management method of oneself power consumption |
| CN107599857A (en) * | 2017-08-24 | 2018-01-19 | 华南理工大学 | A kind of pure electric automobile charging system and charging method based on lithium battery |
| CN108100201A (en) * | 2018-01-25 | 2018-06-01 | 广西师范大学 | A kind of electronic high-voltaghe compartment peculiar to vessel |
| WO2020098798A1 (en) * | 2018-11-16 | 2020-05-22 | 宁德时代新能源科技股份有限公司 | Conversion circuit, battery equalization system, and battery management system |
| CN110188373A (en) * | 2019-04-11 | 2019-08-30 | 汉腾汽车有限公司 | A kind of positive relay switch control method of power battery master |
| CN110920462A (en) * | 2019-11-15 | 2020-03-27 | 金华职业技术学院 | Integrated system for vehicle control and battery control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206106977U (en) | Electric automobile power battery energy management system | |
| CN106379188A (en) | Energy management system for power battery of electric automobile and safety protection method | |
| CN107599857B (en) | Pure electric vehicle charging system and charging method based on lithium battery | |
| CN106994910B (en) | Electric energy conversion equipment and method for electric automobiles | |
| CN104167770B (en) | A kind of battery power discharge control method and charge control method | |
| CN102332616B (en) | Diagnosis and control method for power battery management system | |
| CN103078357B (en) | Intelligent vehicle-mounted high-voltage power distribution management unit for electric vehicle | |
| CN110641284B (en) | Power battery safety monitoring and low-voltage power management system for electric automobile | |
| CN202480896U (en) | Safety redundancy device for automobile power battery system | |
| CN101572332A (en) | Control system of high-voltage battery and control method thereof | |
| CN202737571U (en) | Vehicle power supply system | |
| CN109941150B (en) | Self-adaptive energy storage charging pile system and control method thereof | |
| CN105790379A (en) | Cell-by-cell monitoring multi-loop hierarchical control battery management system of electric vehicle | |
| CN103296708B (en) | Multi-party communication control system applied to direct current charging system and charging method | |
| CN110994562A (en) | High-voltage protection functional module in energy storage battery management system and control method | |
| CN114123378A (en) | Power-taking control method of electric automobile | |
| CN105471083B (en) | A kind of safety switching apparatus and method of power battery and battery simulator | |
| CN207481815U (en) | Electric system above and below electric automobile high-voltage | |
| CN206900181U (en) | A kind of electric energy converting equipment being used between electric automobile | |
| CN115001091A (en) | Automatic charging device and method for low-voltage battery pack of new energy automobile and new energy automobile | |
| CN204726242U (en) | A kind of intellectualized management system of vehicle electronic device | |
| CN111591148B (en) | Non-net self-walking energy storage and bidirectional AC/DC converter system for rail transit | |
| CN102419555B (en) | Electric automobile state simulation method based on petri net | |
| CN211000942U (en) | Low-voltage power supply management system for safety monitoring of power battery of electric automobile | |
| CN105182854A (en) | Charging pile distributed controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20190930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |