CN212637175U - High-voltage interlocking detection system for electric automobile - Google Patents
High-voltage interlocking detection system for electric automobile Download PDFInfo
- Publication number
- CN212637175U CN212637175U CN202020509549.4U CN202020509549U CN212637175U CN 212637175 U CN212637175 U CN 212637175U CN 202020509549 U CN202020509549 U CN 202020509549U CN 212637175 U CN212637175 U CN 212637175U
- Authority
- CN
- China
- Prior art keywords
- voltage
- connector
- detection
- interlocking
- plug
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 53
- 238000012544 monitoring process Methods 0.000 claims description 19
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model discloses an electric automobile high pressure interlocking detecting system, integrated power and pilot lamp in the high-pressure connector plug that is used for connecting on-vehicle electrical apparatus, power and pilot lamp establish ties and form the detection return circuit, establish ties two terminals in the detection return circuit that forms and connect respectively on the connector plug. The utility model has the advantages that: whether the plug connector is in failure can be detected during assembly; and can be after the whole car is assembled the data that detects through the check point and find the trouble automatically and give the warning, convenient in time discovery, to the maintenance after the discovery moreover, also can be convenient confirm the fault location of the high-pressure interlocking plug connector that corresponds through the pilot lamp that sets up.
Description
Technical Field
The utility model relates to an electric automobile's interlocking technical field, in particular to electric automobile high pressure interlocking detecting system.
Background
In the prior art, the high-voltage interlocking design of the electric automobile is widely used for protecting the safe operation of the whole automobile, and when a high-voltage interlocking fault occurs, the electrical safety is threatened, so that the state of high-voltage interlocking needs to be detected; in the high-voltage interlocking fault, the interlocking terminal of the high-voltage connector is pushed, the high-voltage connector is not installed, the connector is not assembled in place, and the like. The high-voltage circuit interlocking function design is provided for the reliability degree of the high-voltage circuit connection. When the high-voltage safety management system detects that a certain part is disconnected or the connection of the certain part does not reach the expected reliability, the safety management system cuts off the output of the related power supply directly or through the whole vehicle controller and gives out an acousto-optic alarm until the fault is completely eliminated. However, the high-voltage interlocking fault can be read only when the whole vehicle is assembled and powered on, and it cannot be accurately judged which part has a problem, so that the source of the problem can be determined only by checking each component one by one during maintenance. The vehicle maintenance process becomes complicated and is easy to be wrong.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a high-voltage interlocking detection system which is used for quickly detecting the faults of a connector assembly during assembly.
In order to achieve the purpose, the invention adopts the technical scheme that: a high-voltage interlocking detection system for an electric automobile integrates a power supply and an indicator lamp in a high-voltage connector socket or plug for connecting a vehicle-mounted electric appliance, and the power supply and the indicator lamp are connected in series to form a detection loop.
The detection circuit is provided with a monitoring point, voltage data of the monitoring point is detected through a voltage detection circuit, and the output end of the voltage detection circuit is connected with the BMS and used for acquiring the voltage data of the detection point; and the output end of the BMS is connected with a high-voltage relay of the power battery pack.
And the output end of the BMS is connected with the VCU and is used for uploading the detected fault signals of the detection loop.
And the output end of the VCU is connected with the ICM and is used for controlling the ICM to alarm and lighten a system fault lamp.
And the output end of the VCU is connected with a power system and is used for outputting limited power output after receiving the fault signal.
The high-voltage connector comprises a high-voltage connector (a battery loop) for a power battery end; the motor and the MCU are connected by a high-voltage connector (a motor loop); PDU, AC, PTC, DC, OBC connect with the high-voltage plug connector (high-voltage accessory circuit).
The utility model has the advantages that: whether the plug connector is in failure can be detected during assembly; moreover, after the whole vehicle is assembled, the fault can be automatically found through data detected by the detection points and an alarm can be given, so that the fault can be conveniently found in time, and the fault position (the fault plug connector is positioned) of the corresponding high-voltage interlocking plug connector can be conveniently determined through the arranged indicator lamp for the found maintenance; moreover, the automobile power supply is simple in structure, low in added hardware cost, convenient to popularize and use and small in influence on the whole automobile power supply.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic diagram of a detection loop after a plug connector is connected with a socket of an electrical appliance according to the present invention;
FIG. 2 is a schematic view of the monitoring point and the corresponding plug-in connector of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
As shown in figure 1, a high-voltage interlocking detection system for an electric automobile integrates a power supply and an indicator light in a high-voltage socket or plug of a connector for connecting a vehicle-mounted electric appliance, the power supply and the indicator light are connected in series to form a detection loop, and two terminals of the detection loop formed in series are respectively connected to a plug connecting terminal or a socket connecting terminal of the connector. The plug connecting terminals and the socket connecting terminals are respectively terminals for connecting the plug and the socket, and when the connector plug is in plug-in connection with the socket, the plug connecting terminals and the socket connecting terminals are connected with each other, so that the detection loop is arranged on the plug connecting terminals or the socket connecting terminals, and the detection loop can form a loop to light the bulb as long as the detection loop is normally connected with the plug connecting terminals or the socket connecting terminals. Because the plug connector is as using between two electrical apparatus of high-pressure interlocking return circuit and UNICOM, when the plug connector is pegged graft and is accomplished and not have the trouble, because the plug that the plug connector was connected at the plug connector to two terminals of the detection circuitry of this application works, accomplishes to connect and connect normally when the return circuit plug connector, then detects the return circuit and forms the on-state, and the small bulb pilot lamp is luminous, just so can be in whole car assembly process, detect whether have a problem when connecting the installation plug connector, in time discover the trouble. Moreover, the mode is simple, and only an indicator light and a small power supply need to be added on the plug connector in the prior art and then the indicator light and the small power supply are connected through a lead.
Preferably, in order to realize that the vehicle automatically detects the connection fault of the plug connector (the connection fault of the plug connector causes the connection fault of an interlocking loop in the plug connector, so that the interference occurs to the high-voltage interlocking fault), a monitoring point is arranged on the detection loop, the voltage data of the monitoring point is detected through a voltage detection circuit, and the output end of the voltage detection circuit is connected with the BMS and used for acquiring the voltage data of the detection point; the output end of the BMS is connected with a high-voltage relay of the power battery pack. The voltage detection circuit is used for detecting the voltage signal of the monitoring point, can detect the level of the monitoring point through a voltage transformer and a resistance bleeder circuit and send the level into the BMS, and then when the fault occurs, the fault can cause high-voltage electrical risk, so the output of the power battery can be controlled at the moment, and therefore, the BMS output end can control a total positive relay, a total negative relay and the like.
The output end of the BMS is connected with the VCU and used for uploading detected fault signals of the detection loop. The output end of the VCU is connected with the ICM and is used for controlling the ICM to alarm and lighten a system fault lamp. After the VCU of the vehicle controller receives the fault signal, the ICM of the CAN signal value sending instrument controls the lightening of the high-voltage interlocking fault indicator lamp, so that the reminding is given. Further, when the fault occurs, the output end of the VCU is connected with the power system and used for outputting the limited power output after receiving the fault signal. The powertrain includes control of the electrical output power, such as a DCDC converter, among other components.
The high-voltage connector comprises a high-voltage connector assembly for the output end of a power battery, a high-voltage connector for connecting a motor and an MCU (microprogrammed control unit), a PDU (Power distribution Unit), an AC/PTC (alternating Current/Positive temperature coefficient) and a DC/OBC (direct Current/on-Board Circuit). One or more detection circuits (in the connector) and corresponding monitoring points can be arranged in each interlocking loop to realize detection in normal operation and fault detection alarm indication. The monitoring points that above three plug connector corresponds are monitoring point 1, monitoring point 2, monitoring point 3 respectively, specifically as follows respectively:
1: definition of high Voltage interlock
International standard ISO 6469-3-2011 (electric road vehicle, safety code, third part, protection of the body against motors) specifies that high-voltage components on electric vehicles should be provided with a high-voltage interlock. High Voltage Interlock (HVIL) is an abbreviation for high Voltage interlock loop (Hazardous Voltage interlock loop). Also called a hazardous Voltage Interlock loop (US7586722High Voltage Interlock System and Control Strategy); all shunts connected with a high-voltage bus on the electric automobile are checked by using a low-voltage signal, including the electrical connection integrity and continuity of system loops such as a whole battery system, a lead, a connector, a DCDC, a motor controller, a high-voltage box, a protective cover and the like, abnormal disconnection of the loops is recognized, and a control electric device at a high-voltage input end is disconnected in time.
2: design principle of high-voltage interlocking system
Because the power system of the electric vehicle consists of a plurality of subsystems, the two subsystems are mutually connected by the high-voltage connectors, the running environment is very severe, and most working conditions are under the conditions of vibration and impact, so the high-voltage interlocking design is the key for ensuring the safety of personnel and the safety running of vehicle equipment. In general, the design of the high-voltage interlock loop of the electric automobile has to follow the following principle:
1) the HVIL circuit must be able to monitor the on/off status of the entire high voltage circuit effectively, in real time, and continuously;
2) all high voltage connectors should be provided with mechanical interlocks and the connectors can only be closed after the HVIL circuit is first disconnected;
3) all high-voltage connectors cannot be connected or disconnected under the non-artificial condition;
4) the HVIL circuit is provided with a high-voltage circuit which can be directly detected by the BMS under a special condition;
5) when the HVIL identifies a danger regardless of the state of the electric vehicle, the vehicle must give an alarm prompt for the dangerous situation, and a meter or an indicator is required to remind the driver in the form of an acoustic or optical alarm.
3: high voltage interlock system design
The high-voltage circuit interlocking function design is provided for the reliability degree of the high-voltage circuit connection. When the high-voltage safety management system detects that a certain part is disconnected or the connection of the certain part does not reach the expected reliability, the safety management system cuts off the output of the related power supply directly or through the whole vehicle controller and gives out an acousto-optic alarm until the fault is completely eliminated. However, the high-voltage interlocking fault can be read only when the whole vehicle is assembled and powered on, and it cannot be accurately judged which part has a problem, so that the source of the problem can be determined only by checking each component one by one during maintenance. The vehicle maintenance process becomes complicated and is easy to be wrong.
This patent aims at designing a new high-pressure interlocking detecting system, just can find the problem and maintain when putting in order the car assembly, greatly reduced put in order the car high-pressure interlocking fault rate and be convenient for maintain when leaving the factory. In the high-voltage interlocking fault, the interlocking terminal of the high-voltage connector is pushed, the high-voltage connector is not installed, the connector is not assembled in place, and the like.
4: high-voltage interlocking detection system principle
In this patent we add a small power supply (electronics) and indicator light to the high voltage connector socket or plug. When the connector is assembled, whether the interlocking loop is conducted or not can be judged through the indicator light. The high-voltage loop uses a power battery pack as a power supply, and the low-voltage loop also needs a power supply for detection (a small and medium-sized power supply of a socket or a plug) to enable a low-voltage signal to be transmitted along the closed low-voltage loop. Once the low-voltage signal is interrupted, the high-voltage connector is indicated to be loosened or separated. The high-pressure interlock principle is as follows. On the basis of the high-voltage interlocking signal loop represented by the following pictures, monitoring points or monitoring loops are designed according to an overall strategy, and the monitoring points or the monitoring loops are responsible for transmitting the state of the high-voltage interlocking signal loop to a VCU or a BMS. The specific circuit schematic diagram is shown in fig. 1 and 2.
The specific working principle is as follows:
1) when the connectors are plugged, if the high-voltage interlocking loop is conducted, the power supply and the indicator lamp form a loop to light the indicator lamp, and the interlocking of the high-voltage connectors in the loop has no problem.
2) After the connectors are plugged, if the high-voltage interlocking loop is not conducted, the power supply and the indicator lamp cannot form a loop, and the indicator lamp cannot be lightened, the interlocking of the high-voltage connectors in the loop has the problems that the interlocking terminal is pushed, the interlocking terminal is forgotten to be installed, the connectors are not assembled in place and the like, and workers can immediately find and maintain the connectors.
3) Because of the power is little power among the connector, in the vehicle use in the life-span, high-pressure interlocking trouble appears, then can judge the high-pressure connector that specifically goes wrong through observing signal lamp on the connector, if high-pressure connector does not have the problem, then can judge that low pressure signal line transmission goes wrong. The system can quickly find and solve problems.
4) The power supply in the plug-in unit can be replaced by detaching the sheath through a tool (the power supply is standardized in vehicle maintenance), and the service life of the power supply in the plug-in unit needs to be ensured to be longer than the service life of the connector.
5) When an emergency occurs, the detection result is directly sent to the BMS through the detection point 1 (arranged in the battery and mainly used for detecting the battery interlocking loop, if the loop in the battery fails, the detection points 2 and 3 have interlocking level signals, and the detection point 1 does not have the interlocking level signal), and the BMS directly disconnects the three high-voltage relays;
6) the motor and the MCU detect the connection state of the high-voltage connector through a detection point 2 (arranged in the MCU, mainly detecting the motor and the MCU interlocking loop, if the loop fails, the detection points 1 and 3 have interlocking level signals, and the detection point 2 does not have the interlocking level signals), and send the connection state to the BMS. If the connection state of the connectors is not good, the BMS directly disconnects the three high-voltage relays, feeds back a signal to the VCU, and displays the fault of the connection position of the power system at the instrument;
7) through check point 3 (arrange in high voltage distribution box, mainly detect DC/DC, the compressor, PTC, high voltage distribution box interlocking return circuit, if the return circuit breaks down, check point 1, 2 have interlocking level signal, check point 3 does not have interlocking level signal) detect DC/DC, the compressor, PTC, high voltage distribution box, the connection condition after the high voltage connector of machine that charges establishes ties, and send to BMS, make the corresponding high voltage relay action of BMS control, BMS feedback signal gives VCU, realize cutting off the power supply and show high voltage connector trouble in instrument department.
The control logic:
1. the BMS detects the reliability of each module connector, when the BMS cannot detect a normal high-voltage interlocking signal, the BMS sends an interlocking loop fault to the VCU through the CAN, records an abnormal fault code, and the ICM lights a system fault lamp;
2. the BMS detects the high-voltage interlocking signal mode to be high-level monitoring, if the high level is monitored all the time, the interlocking loop is normal, if the high level disappears and the filtering (3S) time is ended and is not recovered, the interlocking loop is considered to be in fault, the BMS sends the interlocking loop fault to the VCU through the CAN, records an abnormal fault code, and the ICM lights a system fault lamp;
3. when an interlocking loop fault is detected when a vehicle runs, the current discharge power of the BMS is limited to 0kw within 1min, the VCU limits the output power according to BMS signals, when the vehicle speed is less than or equal to 2km/h, the high-voltage component stops working, the VCU sends a low-voltage instruction, the BMS disconnects the main positive relay and the main negative relay after receiving the high-voltage instruction, the READY indicator lamp is turned off, and the ICM alarm lights a system fault lamp.
The application has the advantages that:
1) the connection status of the motor and the MCU bus connector is fed back to the VCU through the detection result of the BMS, and the connection fault of the power system can be displayed on an instrument;
2) the DC/DC, the compressor, the PTC, the high-voltage distribution box and the charger feed back the BMS through the detection point, and the BMS only needs to judge that the accessory high-voltage connector has a fault;
3) high-voltage component interlocking loops such as DC/DC, compressor, PTC, high-voltage distribution box, charger and the like are fed back to BMS through series connection, and the use of pins is reduced
4) When the electric automobile runs and the interlocking loop detects danger, firstly, a driver is prompted through alarming, and the VCU is used for controlling to run with reduced power;
5) the problem connector is conveniently found after sale, the problem generation interlocking loop is found through the fault diagnosis instrument, and the specific problem connector is confirmed through the connector interlocking signal lamp.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (6)
1. The utility model provides an electric automobile high pressure interlocking detecting system which characterized in that: integrating a power supply and an indicator light in a high-voltage connector socket or plug for connecting a vehicle-mounted electric appliance, wherein the power supply and the indicator light are connected in series to form a detection loop; two terminals of the detection circuit formed in series are respectively connected with a plug terminal of the connector or a connecting terminal of the socket.
2. The high-voltage interlock detection system for the electric vehicle as claimed in claim 1, wherein: the detection circuit is provided with a monitoring point, voltage data of the monitoring point is detected through a voltage detection circuit, and the output end of the voltage detection circuit is connected with the BMS and used for acquiring the voltage data of the detection point; and the output end of the BMS is connected with a high-voltage relay of the power battery pack.
3. The high-voltage interlock detection system for the electric vehicle as claimed in claim 2, wherein: and the output end of the BMS is connected with the VCU and is used for uploading the detected fault signals of the detection loop.
4. The high-voltage interlock detection system for the electric vehicle as claimed in claim 3, wherein: and the output end of the VCU is connected with the ICM and is used for controlling the ICM to alarm and lighten a system fault lamp.
5. The high-voltage interlock detection system for the electric vehicle as claimed in claim 3, wherein: and the output end of the VCU is connected with a power system and is used for outputting limited power output after receiving the fault signal.
6. The high-voltage interlock detection system for the electric vehicle as claimed in claim 1, wherein: the high-voltage connector comprises a high-voltage connector for a power battery end; the motor and the MCU are connected by a high-voltage connector; PDU, AC, PTC, DC, OBC connect with the high-pressure plug connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020509549.4U CN212637175U (en) | 2020-04-09 | 2020-04-09 | High-voltage interlocking detection system for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020509549.4U CN212637175U (en) | 2020-04-09 | 2020-04-09 | High-voltage interlocking detection system for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212637175U true CN212637175U (en) | 2021-03-02 |
Family
ID=74793669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020509549.4U Active CN212637175U (en) | 2020-04-09 | 2020-04-09 | High-voltage interlocking detection system for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212637175U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071320A (en) * | 2021-05-14 | 2021-07-06 | 奇瑞商用车（安徽）有限公司 | High-voltage interlocking system of electric automobile |
| CN113352893A (en) * | 2021-03-09 | 2021-09-07 | 奇瑞商用车（安徽）有限公司 | High-voltage interlocking troubleshooting system for electric automobile |
| CN113500946A (en) * | 2021-07-26 | 2021-10-15 | 长春一汽富晟集团有限公司 | New energy automobile maintenance electric shock prevention prompt system, method, equipment and storage medium |
| CN113884783A (en) * | 2021-08-27 | 2022-01-04 | 杭州伯坦科技工程有限公司 | Novel high-voltage interlocking detection system and method |
-
2020
- 2020-04-09 CN CN202020509549.4U patent/CN212637175U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113352893A (en) * | 2021-03-09 | 2021-09-07 | 奇瑞商用车（安徽）有限公司 | High-voltage interlocking troubleshooting system for electric automobile |
| CN113352893B (en) * | 2021-03-09 | 2022-05-03 | 奇瑞商用车（安徽）有限公司 | High-voltage interlocking troubleshooting system for electric automobile |
| CN113071320A (en) * | 2021-05-14 | 2021-07-06 | 奇瑞商用车（安徽）有限公司 | High-voltage interlocking system of electric automobile |
| CN113500946A (en) * | 2021-07-26 | 2021-10-15 | 长春一汽富晟集团有限公司 | New energy automobile maintenance electric shock prevention prompt system, method, equipment and storage medium |
| CN113884783A (en) * | 2021-08-27 | 2022-01-04 | 杭州伯坦科技工程有限公司 | Novel high-voltage interlocking detection system and method |
| CN113884783B (en) * | 2021-08-27 | 2023-09-19 | 杭州伯坦科技工程有限公司 | Novel high-voltage interlocking detection system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212637175U (en) | High-voltage interlocking detection system for electric automobile | |
| CN106828107B (en) | High-voltage interlocking detection device and method for pure electric vehicle | |
| JP5261094B2 (en) | Interlock device for high voltage equipment | |
| CN105391103B (en) | Off-board charger for high voltage battery charging | |
| CN104215823B (en) | Vehicular battery safety monitoring system | |
| CN103612567B (en) | A kind of High-voltage safety protection system of electromobile and method thereof | |
| CN109302852A (en) | Managing device and power-supply system | |
| CN109017313A (en) | Electric automobile high-voltage safety control system and method | |
| CN110103717B (en) | High-voltage interlocking detection system and vehicle | |
| CN110803030B (en) | Failure limping control device and failure limping control method of pure electric vehicle | |
| CN110112826B (en) | Monitoring system of power generation car access device and emergency power distribution | |
| CN214324892U (en) | High-voltage interlocking circuit, battery management system and vehicle | |
| CN109130863A (en) | A kind of electric car is intelligent from prompt system electric under vehicle and its reminding method | |
| CN109532496A (en) | A kind of intelligent high-pressure block terminal based on CAN bus network | |
| US9500680B2 (en) | Method for determining the absence of voltage in an electrical high-voltage system, and electrical high-voltage system | |
| CN210258025U (en) | High-voltage interlocking detection device and electric vehicle | |
| CN108909408B (en) | Vehicle-mounted air conditioning system and vehicle | |
| CN109142856A (en) | A kind of the startup power detection device and method of engine | |
| CN211416976U (en) | High-voltage interlocking system of electric automobile | |
| CN209878961U (en) | Power battery system high-voltage electrical connection detection device | |
| US20130169426A1 (en) | Motor vehicle with a high-voltage source | |
| CN115476693A (en) | Vehicle and high-voltage interlocking system thereof | |
| CN113071320A (en) | High-voltage interlocking system of electric automobile | |
| CN220615494U (en) | High-voltage interlocking system of electric automobile | |
| CN203592904U (en) | High-voltage safety protection system of electric car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240426 Address after: 241000 No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui, China Patentee after: CHERY AUTOMOBILE Co.,Ltd. Country or region after: China Address before: 241000 Building 8, science and Technology Industrial Park, 717 Zhongshan South Road, Yijiang District, Wuhu City, Anhui Province Patentee before: Chery Commercial Vehicles (Anhui) Co., Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |