CN204241221U - A kind of hybrid power assembly Bench calibration and communication experiment device - Google Patents
A kind of hybrid power assembly Bench calibration and communication experiment device Download PDFInfo
- Publication number
- CN204241221U CN204241221U CN201420690021.6U CN201420690021U CN204241221U CN 204241221 U CN204241221 U CN 204241221U CN 201420690021 U CN201420690021 U CN 201420690021U CN 204241221 U CN204241221 U CN 204241221U
- Authority
- CN
- China
- Prior art keywords
- tcu
- ecu
- interface
- communication
- hcu
- 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.)
- Active
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to engine test facility technical field, a kind of hybrid power assembly Bench calibration and communication experiment device are provided, it is provided with encapsulating housing and front panel, TCU in encapsulating housing will be arranged on, HCU and the ECU be arranged on outside housing, BMS, the CAN of MCU and checkout equipment connecting communication is encapsulated in encapsulating housing, being arranged by communication CAN interface is embodied on front panel, realization patches fast with checkout equipment, simultaneously, front panel is provided with HCU and demarcates interface, ECU demarcates interface, TCU demarcates interface, first CAN communication interface and the second CAN communication interface, CAN corresponding to it is all encapsulated in encapsulating housing, make whole hybrid power assembly horse structure succinct, attractive in appearance, and avoid the potential safety hazard brought because of CAN wiring error, greatly reduce failure rate, improve the efficiency of demarcation and communication experiment.
Description
Technical field
The utility model belongs to engine test facility technical field, particularly relates to a kind of hybrid power assembly Bench calibration and communication experiment device.
Background technology
Day by day serious along with environment environmental issue, all actively pushing forward the popularization of new energy vehicle, but because a battery technology difficult problem is difficult to capture always, therefore, hybrid electric vehicle becomes the first-selection of new energy vehicle, motor vehicle driven by mixed power combines the advantage of conventional truck and electric vehicle, its flying power length, environmental protection, powerful.
Structure and the control strategy of hybrid vehicle are more complicated than conventional truck, it is extremely arduous that corresponding staking-out work also becomes, and because vehicle adds a new power source-motor, and motor and electrokinetic cell all need to carry out demarcating and communicating, therefore, for completing coupling and the performance development of hybrid power assembly, need to carry out long-term rating test, such as to automatic gear-box control module (Transmiss ion Control Uni t, TCU) shifting time and clutch position are demarcated, to hybrid power full-vehicle control unit (HybridControl Unit, HCU) operator demand's moment of torsion, torque distribution, energy regenerating, shifting points, engine start and stop, parking charging etc. all must be demarcated.Only completing these rating tests just can make car load economy, dynamic property, comfortableness and emission performance reach best.
But, because hybrid power automobile controller is more, such as HCU, TCU, motor control unit (MotorControl Unit, MCU), control unit of engine (Engine Control Unit, and BMS etc. ECU), cause CAN interface many, arrange at random, there is no unified termination, often cause CAN wrong in calibration process, 120 Ohmages on CAN line easily come off, and cause the loss of experimental data or even do not collect corresponding signal data, have had a strong impact on the progress of rating test.
Utility model content
The purpose of this utility model is to provide a kind of hybrid power assembly Bench calibration and communication experiment device, be intended to solve in prior art because hybrid power automobile controller type is more, cause CAN line interface many, arrange at random, easily cause CAN wrong, cause the loss of experimental data or even do not collect corresponding signal data, having had a strong impact on the problem of the progress of rating test.
The utility model realizes like this, a kind of hybrid power assembly Bench calibration and communication experiment device, described hybrid power assembly Bench calibration and communication experiment device comprise the encapsulating housing be arranged on hybrid power assembly stand, described encapsulating housing is provided with front panel, TCU and HCU is provided with in described encapsulating housing, wherein:
Described front panel is provided with HCU demarcation interface, ECU demarcates interface, TCU demarcates interface, the first CAN communication interface and the second CAN communication interface;
Described HCU is demarcated interface and is connected with described HCU by HUC demarcation CAN, described TCU is demarcated interface and is connected with described TCU by TCU demarcation CAN, and described ECU is demarcated interface and is connected with the ECU be arranged on outside encapsulating housing by the ECU demarcation CAN be arranged in described encapsulating housing;
Described first CAN communication interface is connected with HCU, TCU and ECU respectively by low-voltage signal transmission CAN, and described second CAN communication interface is connected with HCU, BMS and MCU respectively by high-voltage signal transmission CAN.
As a kind of improved plan, described front panel is also provided with TCU and writes with a brush dipped in Chinese ink switch, described TCU writes with a brush dipped in Chinese ink the low-voltage signal of switch between described TCU and described first CAN communication interface and transmits in CAN.
As a kind of improved plan, described front panel is also provided with ECU switch, the low-voltage signal of described ECU switch between described ECU and described first CAN communication interface transmits in CAN.
As a kind of improved plan, described front panel is also provided with MCU switch, the low-voltage signal of described MCU switch between described MCU and described first CAN communication interface transmits in CAN.
As a kind of improved plan, described front panel is also provided with power supply wiring mouth, described power supply wiring mouth connection is arranged on the 24V power supply outside described encapsulating housing.
As a kind of improved plan, described 24V power supply is connected with HCU feed circuit, TCU feed circuit and ECU feed circuit.
As a kind of improved plan, described HCU feed circuit are serially connected with 5A fuse, described TCU feed circuit are serially connected with 15A fuse, described ECU feed circuit are serially connected with 5A fuse.
As a kind of improved plan, described front panel is also provided with car load power on pilot lamp and the TCU of pilot lamp, ECU that power on and powers on pilot lamp.
As a kind of improved plan, the described car load pilot lamp that powers on is serially connected on described HCU feed circuit, and the described TCU pilot lamp that powers on is serially connected on described TCU feed circuit, and the described ECU pilot lamp that powers on is serially connected on described ECU feed circuit.
As a kind of improved plan, described front panel is also provided with power switch, described power switch is serially connected on described HCU feed circuit.
Because hybrid power assembly Bench calibration and communication experiment device are provided with encapsulating housing and front panel, TCU in encapsulating housing will be arranged on, HCU and the ECU be arranged on outside housing, BMS, the CAN of MCU and checkout equipment connecting communication is encapsulated in encapsulating housing, being arranged by communication CAN interface is embodied on front panel, realization patches fast with checkout equipment, simultaneously, front panel is provided with HCU and demarcates interface, ECU demarcates interface, TCU demarcates interface, first CAN communication interface and the second CAN communication interface, CAN corresponding to it is all encapsulated in encapsulating housing, make whole hybrid power assembly horse structure succinct, attractive in appearance, and avoid the potential safety hazard brought because of CAN wiring error, greatly reduce failure rate, improve the efficiency of demarcation and communication experiment.
Write with a brush dipped in Chinese ink switch, ECU switch and MCU switch owing to being provided with TCU on front panel respectively, achieve the Non-follow control to each controller trace routine, simple to operate, and realize the manual switchover of the different operational mode of hybrid power assembly.
Due to front panel being also provided with power supply wiring mouth, described power supply wiring mouth connects on the 24V power supply that arranges outside described encapsulating housing, and this interface provides 24V direct supply for the checkout equipment on hybrid power assembly stand.
Because 24V power supply connects HCU feed circuit, TCU feed circuit and ECU feed circuit, namely 24V power supply provides working power for HCU, TCU, ECU.
Due to HCU feed circuit being serially connected with 5A fuse, described TCU feed circuit are serially connected with 15A fuse, described ECU feed circuit are serially connected with 5A fuse, ensure that the safety of each feed circuit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hybrid power assembly Bench calibration that provides of the utility model and communication experiment device;
Fig. 2 is the structural representation of the front panel that the utility model provides;
Wherein, 10-encapsulating housing, 101-front panel, 102-HCU demarcates interface, 103-ECU demarcates interface, 104-TCU demarcates interface, 105-first CAN communication interface, 106-second CAN communication interface, 107-TCU writes with a brush dipped in Chinese ink switch, 108-ECU switch, 109-MCU switch, 110-power supply wiring mouth, 111-5A fuse, 112-15A fuse, 113-5A fuse, 114-car load powers on pilot lamp, 115-ECU powers on pilot lamp, 116-TCU powers on pilot lamp, 117-power switch, 118-ground interface, 119-HCU controls wire harness, 120-TCU controls wire harness, 20-TCU, 30-HCU, 40-HUC demarcates CAN, 50-TCU demarcates CAN, 60-ECU demarcates CAN, 70-ECU, 80-low-voltage signal transmission CAN, 90-high-voltage signal transmission CAN, 100-BMS, 200-MCU, 300-24V power supply, 400-HCU feed circuit, 500-TCU feed circuit, 600-ECU feed circuit.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the structural representation of hybrid power assembly Bench calibration that the utility model provides and communication experiment device, for convenience of explanation, only gives the part relevant to the utility model in figure.
Shown in composition graphs 2, hybrid power assembly Bench calibration and communication experiment device comprise the encapsulating housing 10 be arranged on hybrid power assembly stand, and described encapsulating housing 10 is provided with front panel 101, are provided with TCU20 and HCU30 in described encapsulating housing 10, wherein:
Described front panel 101 is provided with HCU and demarcates interface 102, ECU demarcation interface 103, TCU demarcation interface 104, first CAN communication interface 105 and the second CAN communication interface 106;
Described HCU is demarcated interface 102 and is connected with described HCU30 by HUC demarcation CAN 40, described TCU is demarcated interface 104 and is connected with described TCU20 by TCU demarcation CAN 50, and described ECU is demarcated interface 103 and is connected with the ECU70 be arranged on outside encapsulating housing 10 by the ECU demarcation CAN 60 be arranged in described encapsulating housing 10;
Described first CAN communication interface 105 is connected with HCU30, TCU20 and ECU70 respectively by low-voltage signal transmission CAN 80, and described second CAN communication interface 106 is connected with HCU30, BMS100 and MCU200 respectively by high-voltage signal transmission CAN 90.
In the utility model, CAN 40 is demarcated by the HUC in front panel 101 and encapsulating housing 10, TCU demarcates CAN 50, ECU demarcates CAN 60, the layout of low-voltage signal transmission CAN 80 and high-voltage signal transmission CAN 90, make the CAN on hybrid power assembly stand rationally distributed, there will not be the situation patching mistake, and whole detection demarcates interface 102 by the HCU being arranged on front panel 101 correspondence, ECU demarcates interface 103, TCU demarcates interface 104, first CAN communication interface 105 and the second CAN communication interface 106 realize, test patches only by this front panel 101, simple to operate, improve testing efficiency.
In the utility model, shown in composition graphs 1 and Fig. 2, front panel 101 is also provided with TCU and writes with a brush dipped in Chinese ink switch 107, ECU switch 108 and MCU switch 109, wherein:
TCU writes with a brush dipped in Chinese ink the low-voltage signal of switch 107 between described TCU20 and described first CAN communication interface 105 and transmits in CAN 80;
The low-voltage signal of ECU switch 108 between described ECU70 and described first CAN communication interface 105 transmits in CAN 80;
The low-voltage signal of MCU switch 109 between described MCU200 and described first CAN communication interface 105 transmits in CAN 80;
Front panel 101 is provided with TCU respectively and writes with a brush dipped in Chinese ink switch 107, ECU switch 108 and MCU switch 109, achieve the Non-follow control to each controller trace routine, simple to operate, and realize the manual switchover of the different operational mode of hybrid power assembly.
In the utility model, front panel 101 is also provided with power supply wiring mouth 110, described power supply wiring mouth 110 connection arranges on the 24V power supply 300 outside described encapsulating housing 10, wherein:
24V power supply is connected with HCU feed circuit 400, TCU feed circuit 500 and ECU feed circuit 600;
These HCU feed circuit 400 are serially connected with 5A fuse 111, described TCU feed circuit 500 are serially connected with 15A fuse 112, described ECU feed circuit 600 are serially connected with 5A fuse 113;
This front panel 101 is also provided with car load power on pilot lamp 115 and the TCU of pilot lamp 114, ECU that power on to power on pilot lamp 116;
This car load pilot lamp 114 that powers on is serially connected on described HCU feed circuit 400, and the described TCU pilot lamp 116 that powers on is serially connected on described TCU feed circuit 500, and the described ECU pilot lamp 115 that powers on is serially connected on described ECU feed circuit 600.
In the utility model, front panel 101 is also provided with power switch 117, described power switch 117 is serially connected on described HCU feed circuit 400.
Certainly, this front panel 101 is also provided with ground interface 118, and reserved CAN communication interface etc., do not repeat them here, but not in order to limit the utility model.
In the utility model, in the utility model, be also provided with in this encapsulating housing 10 and be similar to HCU control wire harness 119 and TCU control wire harness 120 etc., do not repeat them here.
In the utility model, above-mentioned first CAN communication interface 105 mainly monitoring be the position signals of key status, on-position, HCU state, the speed of a motor vehicle, gas pedal, engine speed, AMT pattern, demand gear, current gear, gearshift condition, shifting and clutch coupling;
And the main monitoring of the second CAN communication interface 106 is the signals such as cell voltage, battery current, battery temperature, monomer voltage maximal value, monomer voltage minimum value, SOC, battery failures code, battery failures grade, electric moter voltage, current of electric, motor temperature, electrical fault code, electrical fault grade.
Certainly, be also provided with corresponding fixed mechanism at this hybrid power assembly Bench calibration in the encapsulating housing 10 of communication experiment device, fix described HCU30 and TCU20 for the appropriate location in encapsulating housing 10, do not repeat them here.
Further, the shell of encapsulating housing 10 is provided with the through wires hole corresponding with described CAN or circuit line, not shown also unmarked, but not in order to limit the utility model.
In the utility model, CAN line is focused on one piece, grafting convenience, simple, intuitive; During test, directly the calibration tools such as CANoe, CANalyzer are directly inserted on interface corresponding to encapsulating housing, coming off of the wrong of CAN line and 120 Ohmages can be avoided, greatly reduce the incidence of fault, improve the efficiency of rating test.
And, during hybrid power assembly bench test, can the clean and tidy stand environment of advantages of simple most important to complete test smoothly, by the controller of power assembly stand and numerous CAN Interface integration in a device, device panel is simple, each interface definition clear-cut, identification is strong, and wiring error rate is almost 0, simultaneously, this device inside is integrated with high pressure CAN wiretap and the low pressure CAN wiretap of power assembly, can realize the manual switchover of the different operational mode of power assembly, extremely convenient and practical.
In summary, hybrid power assembly Bench calibration and communication experiment device are provided with encapsulating housing and front panel, TCU in encapsulating housing will be arranged on, HCU and the ECU be arranged on outside housing, BMS, the CAN of MCU and checkout equipment connecting communication is encapsulated in encapsulating housing, being arranged by communication CAN interface is embodied on front panel, realization patches fast with checkout equipment, simultaneously, front panel is provided with HCU and demarcates interface, ECU demarcates interface, TCU demarcates interface, first CAN communication interface and the second CAN communication interface, CAN corresponding to it is all encapsulated in encapsulating housing, make whole hybrid power assembly horse structure succinct, attractive in appearance, and avoid the potential safety hazard brought because of CAN wiring error, greatly reduce failure rate, improve the efficiency of demarcation and communication experiment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a hybrid power assembly Bench calibration and communication experiment device, it is characterized in that, described hybrid power assembly Bench calibration and communication experiment device comprise the encapsulating housing (10) be arranged on hybrid power assembly stand, described encapsulating housing (10) is provided with front panel (101), TCU (20) and HCU (30) is provided with in described encapsulating housing (10), wherein:
Described front panel (101) is provided with HCU and demarcates interface (102), ECU demarcation interface (103), TCU demarcation interface (104), the first CAN communication interface (105) and the second CAN communication interface (106);
Described HCU demarcation interface (102) is demarcated CAN (40) by HUC and is connected with described HCU (30), described TCU demarcates interface (104) and demarcates CAN (50) by TCU and is connected with described TCU (20), and described ECU demarcation interface (103) is by being arranged on ECU demarcation CAN (60) in described encapsulating housing (10) and being arranged on encapsulating housing (10) ECU outward (70) and being connected;
Described first CAN communication interface (105) transmits CAN (80) by low-voltage signal and is connected with HCU (30), TCU (20) and ECU (70) respectively, and described second CAN communication interface (106) transmits CAN (90) by high-voltage signal and is connected with HCU (30), BMS (100) and MCU (200) respectively.
2. hybrid power assembly Bench calibration according to claim 1 and communication experiment device, it is characterized in that, described front panel (101) is also provided with TCU and writes with a brush dipped in Chinese ink switch (107), described TCU writes with a brush dipped in Chinese ink the low-voltage signal that switch (107) is positioned between described TCU (20) and described first CAN communication interface (105) and transmits in CAN (80).
3. hybrid power assembly Bench calibration according to claim 1 and communication experiment device, it is characterized in that, described front panel (101) is also provided with ECU switch (108), the low-voltage signal that described ECU switch (108) is positioned between described ECU (70) and described first CAN communication interface (105) transmits in CAN (80).
4. hybrid power assembly Bench calibration according to claim 1 and communication experiment device, it is characterized in that, described front panel (101) is also provided with MCU switch (109), the low-voltage signal that described MCU switch (109) is positioned between described MCU (200) and described first CAN communication interface (105) transmits in CAN (80).
5. hybrid power assembly Bench calibration according to claim 1 and communication experiment device, it is characterized in that, described front panel (101) is also provided with power supply wiring mouth (110), the connection of described power supply wiring mouth (110) is arranged on described encapsulating housing (10) 24V power supply (300) outward.
6. hybrid power assembly Bench calibration according to claim 5 and communication experiment device, it is characterized in that, described 24V power supply (300) is connected with HCU feed circuit (400), TCU feed circuit (500) and ECU feed circuit (600).
7. hybrid power assembly Bench calibration according to claim 6 and communication experiment device, it is characterized in that, described HCU feed circuit (400) are serially connected with 5A fuse (111), described TCU feed circuit (500) are serially connected with 15A fuse (112), described ECU feed circuit (600) are serially connected with 5A fuse (113).
8. hybrid power assembly Bench calibration according to claim 5 and communication experiment device, it is characterized in that, described front panel (101) is also provided with car load power on pilot lamp (115) and the TCU of pilot lamp (114), ECU that power on and powers on pilot lamp (116).
9. hybrid power assembly Bench calibration according to claim 8 and communication experiment device, it is characterized in that, the described car load pilot lamp (114) that powers on is serially connected on described HCU feed circuit (400), the described TCU pilot lamp (116) that powers on is serially connected on described TCU feed circuit (500), and the described ECU pilot lamp (115) that powers on is serially connected on described ECU feed circuit (600).
10. hybrid power assembly Bench calibration according to claim 5 and communication experiment device, it is characterized in that, described front panel (101) is also provided with power switch (117), described power switch (117) is serially connected on described HCU feed circuit (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690021.6U CN204241221U (en) | 2014-11-17 | 2014-11-17 | A kind of hybrid power assembly Bench calibration and communication experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690021.6U CN204241221U (en) | 2014-11-17 | 2014-11-17 | A kind of hybrid power assembly Bench calibration and communication experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204241221U true CN204241221U (en) | 2015-04-01 |
Family
ID=52770702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420690021.6U Active CN204241221U (en) | 2014-11-17 | 2014-11-17 | A kind of hybrid power assembly Bench calibration and communication experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204241221U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281739A (en) * | 2018-09-28 | 2019-01-29 | 潍柴动力股份有限公司 | A kind of Wiring detection method and detection device |
| CN112622784A (en) * | 2020-12-18 | 2021-04-09 | 潍柴动力股份有限公司 | Enabling control device, vehicle calibration device and method |
| CN113432878A (en) * | 2021-06-28 | 2021-09-24 | 哈尔滨工程大学 | Diesel-fuel-steam-electric series-parallel ship hybrid power test bed with monitoring control system and test method |
| RU213246U1 (en) * | 2022-06-14 | 2022-08-31 | Игорь Александрович Бурьян | DEVICE FOR CHECKING THE LIMIT SWITCHES OF THE LIFT MECHANISM OF THE AUTOMATIC CHARGER OF THE OBJECT 184 |
-
2014
- 2014-11-17 CN CN201420690021.6U patent/CN204241221U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281739A (en) * | 2018-09-28 | 2019-01-29 | 潍柴动力股份有限公司 | A kind of Wiring detection method and detection device |
| CN112622784A (en) * | 2020-12-18 | 2021-04-09 | 潍柴动力股份有限公司 | Enabling control device, vehicle calibration device and method |
| CN113432878A (en) * | 2021-06-28 | 2021-09-24 | 哈尔滨工程大学 | Diesel-fuel-steam-electric series-parallel ship hybrid power test bed with monitoring control system and test method |
| CN113432878B (en) * | 2021-06-28 | 2023-07-21 | 哈尔滨工程大学 | Diesel-fuel steam-electric series-parallel ship hybrid power test bed with monitoring control system and test method |
| RU213246U1 (en) * | 2022-06-14 | 2022-08-31 | Игорь Александрович Бурьян | DEVICE FOR CHECKING THE LIMIT SWITCHES OF THE LIFT MECHANISM OF THE AUTOMATIC CHARGER OF THE OBJECT 184 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102390331B (en) | Entire vehicle controller integrated with battery management system for pure electric automobile | |
| CN102156459B (en) | Simulation loading device for whole-vehicle controller | |
| CN102680248A (en) | Test bench and mounting method and testing method thereof | |
| CN204452095U (en) | Electric automobile high-voltage electric power system | |
| CN205301857U (en) | Electric automobile vehicle control unit's semi -physical simulation platform | |
| CN204241221U (en) | A kind of hybrid power assembly Bench calibration and communication experiment device | |
| CN109435878A (en) | A kind of electric vehicle double-core single-chip microcontroller entire car controller and its working method | |
| CN103064399B (en) | Fault simulation analytical equipment for vehicle diagnostics | |
| CN103010127A (en) | Networked control system for electric vehicle | |
| CN201130220Y (en) | System for testing steering room electric apparatus | |
| JP2016518803A (en) | Method and structure for detecting errors during charging of an energy storage system | |
| CN104540704A (en) | Diagnostic apparatus for checking a control signal line | |
| CN103543379A (en) | Circuit fault simulation device of vehicle engine management system | |
| CN112193076A (en) | Electric automobile braking energy recovery device and method and electric automobile | |
| CN102923070B (en) | High-voltage power distribution system for electric automobile | |
| CN204028597U (en) | A kind of entire car controller and there is its vehicle | |
| CN202624118U (en) | Vehicle frame wire harness | |
| CN202615159U (en) | Automotive body controller | |
| CN106347167B (en) | A kind of mixed electrical automobile | |
| CN207931501U (en) | Puma manipulator electric vehicle direct current charge system | |
| CN211416975U (en) | High-voltage interlocking loop of electric automobile | |
| CN207842715U (en) | Electric motor coach based on CAN bus control system | |
| CN206003987U (en) | Circuit assembly apparatus | |
| CN102166984A (en) | State monitoring system for turning lights and braking lights of automobile | |
| US20130106172A1 (en) | Electrical-power-feed connector and electrical power source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |