CN111692267A - Active electric control anti-roll system of shock absorber and control method thereof - Google Patents
Active electric control anti-roll system of shock absorber and control method thereof Download PDFInfo
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- CN111692267A CN111692267A CN202010694478.4A CN202010694478A CN111692267A CN 111692267 A CN111692267 A CN 111692267A CN 202010694478 A CN202010694478 A CN 202010694478A CN 111692267 A CN111692267 A CN 111692267A
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- shock absorber
- damping
- ecu
- roll system
- vehicle
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 102
- 230000035939 shock Effects 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims description 11
- 238000013016 damping Methods 0.000 claims abstract description 34
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0162—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during a motion involving steering operation, e.g. cornering, overtaking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
- B60G17/08—Characteristics of fluid dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/20—Stationary vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/18—Control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses an active electric control anti-roll system of a shock absorber, which comprises a damping device, wherein the damping device comprises a shock absorber main body and a damping rod, the shock absorber main body is provided with a shock absorber upper connection and a shock absorber lower connection, a shock absorber lower cavity chamber is arranged between the shock absorber upper connection and the shock absorber lower connection, the damping rod is positioned in the shock absorber lower cavity chamber, the upper end of the damping rod is provided with a damper piston in sliding connection with the inner wall of the shock absorber lower cavity chamber, and the side surface of the shock absorber is provided with an electromagnetic valve assembly; the system realizes the active control of the damping of the shock absorber by adding the electromagnetic valve on the basis of the traditional shock absorber, and the control signal of the system can be controlled by an ECU of a vehicle or can be independently connected with a special sensor to achieve a special control effect; the electric control system can realize rapid, stable and refined damping control, and has positive influence on the control stability and smoothness of the vehicle; in addition, the mechanical structure of the shock absorber is greatly simplified due to the addition of the electric control system, and the production cost is reduced.
Description
Technical Field
The invention relates to a vehicle technology, in particular to an active electric control anti-roll system of a shock absorber and a control method thereof.
Background
At present, along with the improvement of living standard of people, the automobile slowly becomes the preferred vehicle for people to go out.
When an automobile runs on a curve, the automobile is laterally shifted to cause the vehicle to roll, the overlarge vehicle body roll is not beneficial to riding comfort, and the handling stability of the automobile is also greatly influenced; the shock absorber with the hydraulic anti-roll function can also achieve the effect, but the shock absorber with the hydraulic anti-roll function has a quite complicated mechanical structure and high cost, and the anti-roll damping gain cannot be actively adjusted, so that the difficulty is brought to batch manufacturing.
Disclosure of Invention
The present invention provides an active electrical control anti-roll system of a shock absorber and a control method thereof, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
an active electric control anti-roll system of a shock absorber comprises a damping device, wherein the damping device comprises a shock absorber main body and a damping rod, the shock absorber main body is provided with a shock absorber upper connection and a shock absorber lower connection, a shock absorber lower cavity is arranged between the shock absorber upper connection and the shock absorber lower connection, the damping rod is positioned in the shock absorber lower cavity, the upper end of the damping rod is provided with a damper piston in sliding connection with the inner wall of the shock absorber lower cavity, the side surface of the shock absorber is provided with an electromagnetic valve assembly, the electromagnetic valve assembly is connected with a shock absorber ECU, the shock absorber ECU is also connected with a strain gauge, the shock absorber main body is fixed on a vehicle chassis through the shock absorber lower connection, the shock absorber main body is also connected with wheels through the shock absorber lower connection, and the shock absorber ECU is connected with the vehicle; the solenoid valve assembly comprises a solenoid valve body, a valve rod is inserted in the solenoid valve body, the front end of the valve rod extends out of the solenoid valve body, a spring is sleeved on the outer wall of the valve rod, the front end of the valve rod is inserted into an oil duct, and a rebound adjusting device is arranged at the rear end of the valve rod.
The strain gauge is connected with a signal processing circuit, the signal processing circuit comprises a Wheatstone bridge, a potentiometer and a transistor, the Wheatstone bridge is connected with an EaT integrated circuit through the potentiometer, a EaT integrated circuit is connected with the transistor, the transistor is connected with a relay, the relay is connected with a contact switch, the contact switch is further connected with the Wheatstone bridge to form a loop, and the contact switch is connected with the electromagnetic valve body.
A control method of an active electric control anti-roll system of a shock absorber adopts the system, and comprises a signal receiving step, a calculating step and a control step, wherein the signal receiving step comprises the following steps: the method comprises the steps that a shock absorber ECU receives signals of a vehicle ECU; the calculation steps are as follows: the method comprises the following steps that a shock absorber ECU confirms the state of a vehicle by calculating the steering wheel angle, the yaw angular velocity and the lateral acceleration, and the current optimal damping value of the vehicle running is matched in real time through calculation and analysis; the control steps are as follows: and the shock absorber ECU controls the flow of the electromagnetic valve according to the calculated optimal result.
As a further scheme of the invention: the front end of the valve rod is conical.
Compared with the prior art, the invention has the beneficial effects that: the system realizes the active control of the damping of the shock absorber by adding the electromagnetic valve on the basis of the traditional shock absorber, and the control signal of the system can be controlled by an ECU of a vehicle or can be independently connected with a special sensor to achieve a special control effect; the electronic control anti-roll system can realize the intervention regulation and control of the damping of the shock absorber before the vehicle generates a roll angle, so as to achieve the effect of pre-control; the electric control system can realize rapid, stable and refined damping control, and has positive influence on the control stability and smoothness of the vehicle; in addition, the mechanical structure of the shock absorber is greatly simplified due to the addition of the electric control system, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a connection diagram of the present invention to a vehicle ECU.
FIG. 3 is a diagram of a strain gage signal processing circuit according to the present invention.
Fig. 4 is a schematic structural diagram of an electrically controlled valve according to the present invention.
In the figure, 1-vehicle chassis, 2-damping device, 3-wheel, 200-shock absorber upper connection, 210-shock absorber main body, 220-damper piston, 300-damping rod, 310-shock absorber lower chamber, 320-shock absorber lower connection, 400-solenoid valve assembly, 410-solenoid valve body, 420-valve rod, 430-rebound adjusting device, 440-spring, 450-oil channel, 500-shock absorber ECU, 600-strain gage, 710-Wheatstone bridge, 720-EaT integrated circuit, 730-potentiometer, 740-transistor, 750-relay, 760-contact switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1 to 4, an active electrically controlled anti-roll system of a shock absorber includes a damping device 2, the damping device 2 includes a shock absorber body 210 and a damping rod 300, the shock absorber body 210 has an upper shock absorber connection 200 and a lower shock absorber connection 320, a lower shock absorber chamber 310 is formed between the upper shock absorber connection 200 and the lower shock absorber connection 320, a damping rod 300 is located in the lower shock absorber chamber 310, an upper end of the damping rod 300 has a damper piston 220 slidably connected to an inner wall of the lower shock absorber chamber 310, the electromagnetic valve assembly 400 is arranged on the side surface of the shock absorber, the electromagnetic valve assembly 400 is connected with the shock absorber ECU500, the shock absorber ECU500 is also connected with a strain gauge 600, the shock absorber main body 210 is fixed on the vehicle chassis 1 through a shock absorber lower connection 320, the shock absorber main body is also connected with the wheels 2 through the shock absorber lower connection 320, and the shock absorber ECU500 is connected with the vehicle ECU; the electromagnetic valve assembly 400 comprises an electromagnetic valve body 410, a valve rod 420 is inserted into the electromagnetic valve body 410, the front end of the valve rod 420 extends out of the electromagnetic valve body 410, a spring 440 is sleeved on the outer wall of the valve rod 420, the front end of the valve rod 420 is inserted into an oil passage 450, and a rebound adjusting device 430 is arranged at the rear end of the valve rod 420.
The control method adopting the system comprises a signal receiving step, a calculating step and a control step, wherein the signal receiving step comprises the following steps: the shock absorber ECU500 receives signals of the vehicle ECU such as a vehicle body roll angle, a steering wheel angle, a lateral acceleration, a yaw rate, and the like; the calculation steps are as follows: the shock absorber ECU500 confirms the vehicle state by calculating the steering wheel angle, the yaw angular velocity and the lateral acceleration, and matches the optimal damping value of the current vehicle running in real time through calculation and analysis; the control steps are as follows: the shock absorber ECU500 controls the flow rate of the solenoid valve according to the calculated optimal result, and since the solenoid valve is connected in parallel to the shock absorber main body 210, the total area of the piston oil passage 450 passage is changed, thereby realizing the control of the damping, the process is detected in real time, and the damping value of the shock absorber is also optimally adjusted in real time according to the change of the vehicle state.
The strain gauge 600 is connected with a signal processing circuit, the signal processing circuit comprises a Wheatstone bridge 710, a potentiometer 730 and a transistor 740, the Wheatstone bridge 710 is connected with EaT integrated circuit 720 through the potentiometer 730, the EaT integrated circuit 720 is connected with the transistor 740, the transistor 740 is connected with a relay 750, the relay 750 is connected with a contact switch 760, the contact switch 760 is further connected with the Wheatstone bridge 710 to form a loop, the contact switch 760 is connected with the solenoid valve body 410, the change of current in a coil of the solenoid valve body 410 is realized through the signal processing circuit, the change of the current brings the change of the intensity of a magnetic field, the displacement of the valve rod 420 is further controlled, the change of the size of an oil passage is realized during the displacement of the valve rod, and the accurate control of the damping value of the shock absorber is further realized.
Example 2:
on the basis of embodiment 1, the front end of the valve rod 420 is tapered, so that the movement of the valve rod 420 in the oil passage is further facilitated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. An active electronic control anti-roll system of a shock absorber comprises a damping device (2) and is characterized in that the damping device (2) comprises a shock absorber main body (210) and a damping rod (300), the shock absorber main body (210) is provided with a shock absorber upper connection (200) and a shock absorber lower connection (320), a shock absorber lower chamber (310) is arranged between the shock absorber upper connection (200) and the shock absorber lower connection (320), the damping rod (300) is positioned in the shock absorber lower chamber (310), the upper end of the damping rod (300) is provided with a damper piston (220) in sliding connection with the inner wall of the shock absorber lower chamber (310), the side surface of the shock absorber is provided with an electromagnetic valve assembly (400), the electromagnetic valve assembly (400) is connected with a shock absorber ECU (500), the shock absorber ECU (500) is further connected with a strain gauge (600), the shock absorber main body (210) is fixed on a vehicle chassis (1) through the shock absorber lower connection (320), the shock absorber body is connected (320) and is connected with wheel (2) under still through the shock absorber solenoid valve assembly (400) include solenoid valve body (410), and solenoid valve body (410) interpolation is equipped with valve rod (420), and the valve rod (420) front end stretches out solenoid valve body (410) outside, and valve rod (420) outer wall cover is equipped with spring (440), and valve rod (420) front end inserts in oil duct (450).
2. An active electrically controlled anti-roll system of a shock absorber according to claim 1, wherein the valve stem (420) is provided with a rebound adjustment means (430) at the rear end.
3. An active electrically controlled anti-roll system of shock absorbers according to claim 1, characterized in that said shock absorber ECU (500) is connected to a vehicle ECU.
4. An active electrically controlled anti-roll system for a shock absorber according to claim 1 or 2, wherein the forward end of the valve stem (420) is tapered.
5. An active electrically controlled anti-roll system of shock absorber according to claim 1 or 2, characterized in that the strain gauge (600) is connected with a signal processing circuit, the signal processing circuit comprises a Wheatstone bridge (710), a potentiometer (730) and a transistor (740), the Wheatstone bridge (710) is connected with EaT IC (720) through the potentiometer (730), the transistor (740) is connected with EaT IC (720), the transistor (740) is connected with a relay (750), the relay (750) is connected with a contact switch (760), the contact switch (760) is further connected with the Wheatstone bridge (710) to form a loop, and the contact switch (760) is connected with the solenoid valve body (410).
6. A control method of an active electric control anti-roll system of a shock absorber is characterized by comprising a signal receiving step, a calculating step and a control step.
7. The method for controlling the active electric control anti-roll system of the shock absorber according to claim 6, wherein the signal receiving step comprises: a shock absorber ECU (500) receives a signal of a vehicle ECU; the calculation steps are as follows: the shock absorber ECU (500) confirms the vehicle state by calculating the steering wheel angle, the yaw angular velocity and the lateral acceleration, and matches the current optimal damping value of the vehicle running in real time through calculation and analysis; the control steps are as follows: the shock absorber ECU (500) controls the flow rate of the solenoid valve with the calculated optimum result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010694478.4A CN111692267A (en) | 2020-07-17 | 2020-07-17 | Active electric control anti-roll system of shock absorber and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010694478.4A CN111692267A (en) | 2020-07-17 | 2020-07-17 | Active electric control anti-roll system of shock absorber and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111692267A true CN111692267A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010694478.4A Pending CN111692267A (en) | 2020-07-17 | 2020-07-17 | Active electric control anti-roll system of shock absorber and control method thereof |
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| CN (1) | CN111692267A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971099Y (en) * | 2006-10-27 | 2007-11-07 | 吉林大学 | Vehicle electronic stability control system |
| FR2963072A1 (en) * | 2010-07-21 | 2012-01-27 | Amortisseur Donerre | Shock-absorber device for e.g. torsion bar suspension of automobile, has valve fixed to chambers of cylinder to realize filling and/or emptying of chambers at end of rod movement and control processes based on asperities on contact surface |
| CN103568774A (en) * | 2013-11-20 | 2014-02-12 | 安徽工程大学 | Shock mitigation system preventing inclination of car body and control method thereof |
| CN108099536A (en) * | 2018-01-25 | 2018-06-01 | 广州市米萨汽车电子科技有限公司 | It is a kind of to damp continuously adjustable and variable rigidity control system and vehicle |
| CN110056599A (en) * | 2019-04-30 | 2019-07-26 | 中北大学 | A kind of active magneto-rheological vibration damper of bitubular based on route-variable under shear mode |
| CN209795099U (en) * | 2019-03-15 | 2019-12-17 | 江西五十铃汽车有限公司 | Active suspension device |
| CN215596274U (en) * | 2020-07-17 | 2022-01-21 | 广州多耐减振科技有限公司 | Active automatically controlled anti-roll system of bumper shock absorber |
-
2020
- 2020-07-17 CN CN202010694478.4A patent/CN111692267A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971099Y (en) * | 2006-10-27 | 2007-11-07 | 吉林大学 | Vehicle electronic stability control system |
| FR2963072A1 (en) * | 2010-07-21 | 2012-01-27 | Amortisseur Donerre | Shock-absorber device for e.g. torsion bar suspension of automobile, has valve fixed to chambers of cylinder to realize filling and/or emptying of chambers at end of rod movement and control processes based on asperities on contact surface |
| CN103568774A (en) * | 2013-11-20 | 2014-02-12 | 安徽工程大学 | Shock mitigation system preventing inclination of car body and control method thereof |
| CN108099536A (en) * | 2018-01-25 | 2018-06-01 | 广州市米萨汽车电子科技有限公司 | It is a kind of to damp continuously adjustable and variable rigidity control system and vehicle |
| CN209795099U (en) * | 2019-03-15 | 2019-12-17 | 江西五十铃汽车有限公司 | Active suspension device |
| CN110056599A (en) * | 2019-04-30 | 2019-07-26 | 中北大学 | A kind of active magneto-rheological vibration damper of bitubular based on route-variable under shear mode |
| CN215596274U (en) * | 2020-07-17 | 2022-01-21 | 广州多耐减振科技有限公司 | Active automatically controlled anti-roll system of bumper shock absorber |
Non-Patent Citations (1)
| Title |
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| 程军: "《汽车防抱死制动系统的理论与实践》", 30 September 1999, 北京理工大学出版社, pages: 3 * |
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Address after: 510000 Huachuang Animation Industry Park A14 Building 3, No. 9 Huateng Road, Jinshan Village, Shiji Town, Panyu District, Guangzhou City, Guangdong Province Applicant after: Guangzhou duonai Damping Technology Co., Ltd Address before: 510000 Huachuang Animation Industry Park A14 Building 3, No. 9 Huateng Road, Jinshan Village, Shiji Town, Panyu District, Guangzhou City, Guangdong Province Applicant before: Guangzhou Multi-shock Absorption Technology Co.,Ltd. |
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