CN209398156U - Electric tail gate kicking sensor for automobile tail gate - Google Patents
Electric tail gate kicking sensor for automobile tail gate Download PDFInfo
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- CN209398156U CN209398156U CN201821604500.6U CN201821604500U CN209398156U CN 209398156 U CN209398156 U CN 209398156U CN 201821604500 U CN201821604500 U CN 201821604500U CN 209398156 U CN209398156 U CN 209398156U
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Abstract
The utility model discloses the electric tail gate kicking sensors for automobile tail gate, comprising: induction antenna incudes the voltage fluctuation within the scope of 1 meter of automobile tail gate；PCB circuit board is provided with condenser type foot and kicks induction module, core processing module, communication module and protecting against shock protective module；The condenser type foot kicks induction module, receives the voltage fluctuation signal of induction antenna induction and forms analog signal；The core processing module acquires analog signal, and converts analog signals into digital signal；The communication module gives digital data transmission to automobile tail gate controller, controls the unlatching of automobile tail gate；The protecting against shock protective module, input terminal are connect with vehicle body power supply, and are powered to PCB circuit board, and in high impulse impact, the vehicle body supply voltage of input is clamped down on to the constant output voltage for setting.The utility model has the characteristics that low cost, high reliablity, good compatibility and waterproofing grade are high.
Description
Technical field
The utility model relates to automobile tail gate control system technical fields.More specifically, the utility model relates to be used for
The electric tail gate kicking sensor of automobile tail gate.
Background technique
Control system for automobile industry have stability requirement high, tolerance vehicle body complexity electrical environment, high sensitivity with
And the features such as being related to complicated automobile bus communication, overwhelming majority core controller is monopolized by offshore company at present.At present
With quasi-controller, there are the problems such as at high cost, high to external automobile electrical environment dependence and sensitivity is low in the market, for existing
The electric tail gate system of supplier's production can not be well compatible at home.
Utility model content
One purpose of the utility model is to provide the electric tail gate kicking sensor for automobile tail gate, have it is low at
The features such as sheet, high reliablity, good compatibility and waterproofing grade height.
In order to realize these purposes and other advantages according to the present utility model, the electronic tail for automobile tail gate is provided
Door kicking sensor, comprising: induction antenna incudes the voltage fluctuation within the scope of 1 meter of automobile tail gate, the cloth of the induction antenna
Line mode is two-way wiring, and horizontally disposed and spacing is not less than 1600 millimeters；PCB circuit board is provided with condenser type foot
Kick induction module, core processing module, communication module and protecting against shock protective module；The condenser type foot kicks induction module, connects
It receives the voltage fluctuation signal of induction antenna induction and forms analog signal；The core processing module acquires analog signal, and
Convert analog signals into digital signal；The communication module gives digital data transmission to automobile tail gate controller, controls vapour
The unlatching of tailstock door；The protecting against shock protective module, input terminal are connect with vehicle body power supply, and are powered to PCB circuit board, and
When high impulse impact, the vehicle body supply voltage of input is clamped down on and exports power supply again for the constant output voltage of setting.
Preferably, the circuit of the protecting against shock protective module includes: input power, connects vehicle body power supply；Two electricity
Hold, is connected in parallel and is connected serially to input power again；Clamp circuit, in parallel with two capacitors, the clamp circuit is also connected serially to
Input power is also in series with diode between the clamp circuit and input power.
Preferably, CAN communication interface and LIN communication interface, the communication mould are provided in the PCB circuit board simultaneously
Digital data transmission to automobile tail gate controller is transmitted by LIN or CAN communication agreement by block.
Preferably, the PCB circuit board level interference fit is welded in the plug connector of sensor outer housing, the induction
Antenna is connected by the terminal of connector and sensor outer housing, and the PCB circuit board upper surface is solidified by liquid-state epoxy resin
The solid isolation layer formed afterwards is sealingly fastened in sensor outer housing.
Preferably, the PCB circuit board further includes decompression chip, and body of a motor car power supply is to kicking sensor power supply and electricity
Connection decompression chip, decompression chip are electrically connected core circuit and accessory circuit, and the decompression chip is by the electricity of vehicle body power supply
Pressure is converted to the voltage that core circuit and accessory circuit are suitble to respectively.
The utility model is include at least the following beneficial effects:
1, electric tail gate foot, which kicks controller, has the characteristics that low cost, high reliablity, good compatibility, wherein software architecture and
Algorithm is independent research, has the characteristics that scalability is good, modular.
2, electric tail gate foot designed by the utility model kicks the software algorithm of the mating independent research of controller, good reality
The various functions of electric tail gate system are showed；Function has: 1) highly sensitive foot kicks control function；2) meet international standard
CAN line communication/LIN communication function；3) good low power consumption levels (1mA or less)；4) water proof and dust proof grade reaches IP65.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the working principle diagram of the utility model protecting against shock protective module；
Fig. 2 is the anti-error control flow chart kicked of the utility model；
Fig. 3 is the control flow chart that the utility model eliminates interference.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
It should be noted that experimental method described in following embodiments is unless otherwise specified conventional method, institute
Reagent and material are stated, unless otherwise specified, is commercially obtained；In the description of the present invention, term " transverse direction ",
The instruction such as " longitudinal direction ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the utility model and letter
Change description, be not the device of indication or suggestion meaning or element must have a particular orientation, constructed with specific orientation and
Operation, therefore should not be understood as limiting the present invention.
As shown in Figures 1 to 3, the utility model provides a kind of electric tail gate kicking sensor for automobile tail gate, comprising:
Induction antenna incudes the voltage fluctuation within the scope of 1 meter of automobile tail gate, and the wire laying mode of the induction antenna is two-way wiring,
Its horizontally disposed and spacing is not less than 1600 millimeters；PCB circuit board is provided with condenser type foot and kicks induction module, at core
Manage module, communication module and protecting against shock protective module；The condenser type foot kicks induction module, receives the electricity of induction antenna induction
Pressure fluctuation signal simultaneously forms analog signal；The core processing module acquires analog signal, and converts analog signals into number
Word signal；The communication module gives digital data transmission to automobile tail gate controller, controls the unlatching of automobile tail gate；It is described
Protecting against shock protective module, input terminal are connect with vehicle body power supply, and are powered to PCB circuit board, and in high impulse impact, will be defeated
The vehicle body supply voltage entered is clamped down on exports power supply for the constant output voltage of setting again.
The circuit of the protecting against shock protective module includes: input power, connects vehicle body power supply；Two capacitors, it is in parallel
Connection is connected serially to input power again；Clamp circuit, in parallel with two capacitors, the clamp circuit is also connected serially to input power,
Diode is also in series between the clamp circuit and input power.
In the above-mentioned technical solutions, electric tail gate kicking sensor is by sensor outer housing, PCB circuit board, induction antenna group
At PCB circuit board is made of the electronic component of each functional module, is completed the process by paster technique, including core processing
Module, communication module, condenser type foot kick induction module etc..Induction antenna is the induction input device as kicking sensor, sense
The electric field change near automobile tail gate is answered, analog input signal is formed for kernel processor chip and does data acquisition use；Incude day
Line is connected by the terminal of connector and sensor outer housing, is connected to form circuit pathways with PCB circuit board by conductive lock pin.
The digital signal result recognized is transferred to electric tail gate control eventually by communication module in a manner of LIN bus, CAN bus etc.
Device or automobile remote-control key PEPS controller and BCM controller etc. carry out subsequent processing.Traditional induction antenna wiring is single channel
The product design of signal input, the utility model is simple two-way signal input, while on cabling scenario, between the arrangement of simple two-way signal
Away from not less than 1600 millimeters of horizontally disposed, sensitivity answered using the wiring method promotion feeling of enhancing.
Automobile electrical environment very severe in automobile starting, stops moment, and the equipment start-stops such as high power device such as air-conditioning are all
Very high voltage pulse can be generated, to prevent too high voltages impact from causing burning for electronic component, we are provided with protecting against shock
Protective module eliminates voltage in high impulse impact, keeps constant on electronic component such as chip, the circuits such as capacitor
Voltage is to guarantee that circuit works normally.
Its schematic diagram is as shown in Fig. 1, if vehicle body power input generates high-voltage signal, is filtered first by C103, C104
Pressure stabilizing forms clamp circuit with Q101 under the effect of Q102NPN triode, when supply voltage is higher than 16V, passes through triode
Output voltage is clamped down on the normal work for guaranteeing internal component in 12V by state characteristic, improves kicking sensor circuit power
Stability.Concatenated clamp circuit is diode, anti-reverse.
In another technical solution, it is provided with CAN communication interface and LIN communication interface simultaneously in the PCB circuit board,
Digital data transmission to automobile tail gate controller is transmitted by LIN or CAN communication agreement by the communication module.
In the above-mentioned technical solutions, optional there are two types of existing communication modes, i.e., CAN communication and LIN communicate, we are in hardware
It has been simutaneously arranged two kinds of communication interface in design, has needed may be selected the communication interface of response according to user, is conducive to use
The controller of family selection matching and kicking sensor communication.For example, other controllers used by some projects client do not have LIN
Communication interface can use CAN communication.
In another technical solution, the PCB circuit board level interference fit is welded in the plug connector of sensor outer housing
Interior, the induction antenna is connected by the terminal of connector and sensor outer housing, and the PCB circuit board upper surface passes through liquid ring
The solid isolation layer formed after oxygen resin solidification is sealingly fastened in sensor outer housing.
In the above-mentioned technical solutions, after PCB circuit board and sensor outer housing connector, induction antenna weld, pass through sealing
PCB circuit board is fixed in sensor outer housing by technique, plays the role of fixed and waterproof and dustproof.Kicking sensor shell exists
After being packed into PCB circuit board, overall perfusion, and the overall perfusion sealing of PCB circuit board top is only carried out in the technical program, lower part is not
Pipe, it is cost-saved, it also can guarantee absolute waterproof performance, can soak without generating short-circuit risks.Encapsulating, which refers to, to be produced
In technique, it is circulated into the top in the sensor outer housing comprising PCB circuit board using epoxide resin material (liquid), to a timing
Between solidify after form solid insulating layer so that the circuit in kicking sensor not will receive the influence of external dust, moisture, mention
Rise the waterproofing grade of kicking sensor.
The utility model additionally provides a kind of control method of electric tail gate kicking sensor for automobile tail gate, is setting
In fixed time interval, when the condenser type foot, which kicks the voltage fluctuation that induction module receives, is no more than 2V, by core processing
The high frequency clock of module is switched to low-frequency clock, simultaneously closes off attached clock, and disconnects accessory circuit power supply；When the condenser type
When foot kicks the voltage fluctuation that induction module receives and is more than 2V, communication instruction is issued by CAN bus or LIN bus, passes through IO
Core processing module is switched to wake-up states from above-mentioned dormant state by mouth, i.e., switches the low-frequency clock of core processing module
For high frequency clock, attached clock is opened simultaneously, and connects accessory circuit power supply, into normal operating conditions.
In the time interval of setting, the voltage fluctuation that induction module receives is kicked when the condenser type foot and is no more than 2V
When, control decompression chip is electrically connected disconnection with accessory circuit；When the condenser type foot kicks the voltage wave that induction module receives
When moving more than 2V, control decompression chip is electrically connected connection with accessory circuit.
The core circuit includes reduction voltage circuit, filter circuit and voltage regulator circuit, driving circuit, the accessory circuit packet
Include Hall chip current supply circuit, external signal output loop.
In the above-mentioned technical solutions, reducing power consumption is mainly the fluctuation according to voltage waveform collected within a certain period of time
When no more than 2V voltage, unrelated accessory circuit power supply is closed, but retain the power supply of analog signal input, communication basic module.
The vehicle body power supply of kicking sensor input is the 12V of standard, and the power supply that core circuit needs is 3.3V, the work electricity of accessory circuit
Source is 5V, is first by 12V by decompression chip voltage to 5V and 3.3V in hardware design, being depressured chip has control pin, passes through
Whether the high and low level control decompression chip of control pin works, if generates 5V or 3.3V voltage, idle decompression chip
It is least in power-consuming.
Foot kicks module uninterrupted sampling induction antenna and is formed by analog voltage waveform, and carries out analog to digital signal
Conversion, when there is no variations for nucleus module voltage collected, and after continuing 5 minutes (adjustable), reduction core processing core
The main clock of piece closes attached clock, reduces working frequency, disconnects the power supply of accessory circuit, to reduce stand-by power consumption, realizes
Low-power consumption function.Foot kicks module, and (such as 5 minutes, can adjust) there is no the voltage fluctuations that induction antenna is formed within a certain period of time
When signal, auto sleep enters lowest power consumption state, when voltage fluctuation (2VDC) or more occurs in induction antenna, is called out by I/O port
Oneself is waken up, into the normal signal tupe spoken of above.
By sensor outer housing connector, vehicle body battery power is connect in a manner of often electricity with kicking sensor, by interior
Portion's pressure stabilizing, reduction voltage circuit driving core processing module work, kick sense by core processing module communication control module, condenser type foot
Answer the power induction circuit of module, it is ensured that the lowest power consumption under low power consumpting state.
Core circuit refers to reduction voltage circuit, and the completion system of the compositions such as filter circuit and voltage regulator circuit, driving circuit is steady
Qualitative, reliability circuit structure, accessory circuit refer to other external peripheral circuits that can be turned off, including Hall chip power supply
Circuit, external signal output loop etc..
In another technical solution, after analog signal is converted to digital signal, core processing module also passes through identification and calculates
Method identifies that recognition result is transmitted further to automobile tail gate controller, and detailed process is as follows to digital signal:
Core processing module sampling, converts analog signals into digital signal, and store with array form；
Digital signal passes through limitation filtering algorithm first and eliminates spine interference；
Digital signal sequentially passes sequentially through recurrence average filter method, first-order lag filter method, Glitch Filter method again and carries out height
Frequency interference signal is eliminated；
The digital signal obtained by above-mentioned filtering algorithm is compared with kick action experience database, generates deviation ratio
Value is determined as normal kick action if deviation ratio value is greater than the standard deviation ratio value of setting, will be controlled by communication module
System instruction is transferred to automobile tail gate controller, controls the unlatching of automobile tail gate；If deviation ratio value is no more than the standard deviation of setting
Poor ratio value is then determined as improper kick action, transmits without subsequent data.
In the above-mentioned technical solutions, kick action is identified by induction antenna, it is real using autonomous software algorithm
The judgement of existing kick action, prevents false triggering.By the analog signal of induction antenna carry out sampling form digital signal after, logarithm
Word signal carries out data statistics, and identifies that the height variation tendency of digital signal within a certain period of time is calculated, such as 500
In millisecond, wave-shape amplitude highest and it is minimum between difference reach 5V, while wave numerics is smooth single trough variation tendency,
Then determine to be to produce kick action, specific time, difference value are demarcated according to specific vehicle to determine.The above process is
It is realized by statistic algorithm, integral algorithm.In the process of above-mentioned process, that is, as shown in Fig. 2, experience database is according to tool
The calibration of body project vehicle generates, and deviation ratio value can be set according to sensitivity requirement.
In another technical solution, two-way wiring be simple two-way signal input, using difference algorithm to two paths of signals value into
Row subtraction eliminates electromagnetic interference wave, while eliminating interference signal using knockdown filtering algorithm, and detailed process is as follows:
Sensor inputs initial data, i.e. No. 1 induction antenna circuit-switched data and No. 2 induction antenna circuit-switched datas；
Difference algorithm processing is carried out to two paths of data；
Difference algorithm treated data are passed through into limitation filtering algorithm processing again；
Data that treated sequentially pass sequentially through recurrence average filter method, first-order lag filter method, at Glitch Filter method again
Reason；
Treated data are inputted as the analog signal data of sensor.
In the above-mentioned technical solutions, it is reduced by internal algorithm and is interfered caused by external electromagnetic harassing and wrecking.One-channel signal input
When there is external electromagnetic interference, the wave distortion of generation will lead to, influence discrimination, simple two-way signal input is having electromagnetism dry
In the case of disturbing, what we did is difference algorithm, i.e., by the difference of two paths of signals, external electromagnetic interference is eliminated, and is realized sensitive
The promotion of degree.
In addition the waveform being lower than in 1 millisecond generated for waveform burst flies up or declines, and carries out abandoning processing, rings
The data answered are replaced with the average value of front and back valid data, i.e. filtering algorithm, and realizing reduces electromagnetic interference.
Difference algorithm is also that computer communication field commonly reduces one of jamming countermeasure, when there is interference to generate, parallel
Sensor line together can generate the interference wave of identical amplification, and two digital signal values are used subtraction by us, to generation
Disturbance wave eliminating.
The utility model realizes the reliability of kicking sensor by following three algorithm combination
A) filtering algorithm of capacitance characteristic value
The electric circumstance operating condition of current automobile is extremely complex, has the characteristics that strong noise, in different environments, foot kicks biography
Sensor needs to acquire the analog signal of electric capacity chip, and interference signal is mingled in analog signal that signal processing can be brought and asks greatly very much
Topic, it may appear that nonrecognition or misrecognition the case where.Therefore the filtering considered under varying environment noise conditions, low frequency of forgoing are needed
The interference noise matched with height.
For the filtering algorithm of capacitance characteristic value mainly using numerical value filter algorithm, specific algorithm is as follows:
Digital filter is that one group of input Serial No. is carried out certain operation and is converted into another group of output number sequence
The device of column.If the input of digital filter is X (n), export as Y (n), then the relationship between list entries and output sequence can
It is indicated with difierence equation are as follows:
Wherein: input signal X (n) is the Serial No. obtained after analog signal is sampled and A/D transformation, has above-mentioned pass
The current output of the digital filter of system with it is present and it is past input, past output it is related.If by above-mentioned difference side
BK takes 0 in formula, then illustrates that output is only related with present input and past input.The selection of parameter aK, bK is different, can be with
Realize low pass, high pass, band logical, band hinder etc. different digital filters.
The utility model is directed to the characteristic of current car electrics ambient noise, using based on above-mentioned numerical value filter algorithm
The mode of a variety of filtering algorithms superposition is handled, and is specifically included: weighted average value filtering, the filter of anti-impulse disturbances average value
Wave, program judgement filtering (limit filtration).
B) elimination algorithm of ambient noise
For automobile in the mobility of diverse geographic location, ambient noise also has different features in different location, is
Make kicking sensor have good environment and adapt to new, needs to eliminate the noise of varying environment, be calculated using eliminating
Method is realized.It specifically includes as follows:
Low frequency, high noise of matching are eliminated using using low-pass filtering and complex numerically filtering algorithm first；
Using the mechanism of periodic refreshing, ambient noise signal is subjected to dynamic compensation and is offset；
For the historical data base data of empirical statistics, different frequency range ambient noise characteristic is compared, is identified whether
There is useful signal input to be differentiated.
C) foot sweeps the recognizer made
For signal false triggering problem caused by the mobile objects such as kitten, doggie (non-kick action), using the knowledge of intelligence
Whether other algorithm differentiation is kick action, and specific algorithm is as follows.
Using speed limit filtering algorithm, capacitance characteristic analog signal is subjected to sampling processing, reduces interference；
By experience database data, the kick action feature of people is subjected to parameter restriction, dynamic waveform data are passed through
Logic judgment in limited time, forgo short time or prolonged signal waveform；
Using delay algorithm, data are kicked to the foot having confirmed that and carry out multiple verification of data, reduce the probability of false triggering.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (5)
1. being used for the electric tail gate kicking sensor of automobile tail gate characterized by comprising
Induction antenna, incudes the voltage fluctuation within the scope of 1 meter of automobile tail gate, and the wire laying mode of the induction antenna is two-way cloth
Line, horizontally disposed and spacing are not less than 1600 millimeters；
PCB circuit board is provided with condenser type foot and kicks induction module, core processing module, communication module and protecting against shock protection
Module；
The condenser type foot kicks induction module, receives the voltage fluctuation signal of induction antenna induction and forms analog signal；
The core processing module acquires analog signal, and converts analog signals into digital signal；
The communication module gives digital data transmission to automobile tail gate controller, controls the unlatching of automobile tail gate；
The protecting against shock protective module, input terminal are connect with vehicle body power supply, and are powered to PCB circuit board, and are rushed in high impulse
When hitting, the vehicle body supply voltage of input is clamped down on and exports power supply again for the constant output voltage of setting.
2. being used for the electric tail gate kicking sensor of automobile tail gate as described in claim 1, which is characterized in that the protecting against shock
The circuit of protective module includes:
Input power connects vehicle body power supply；
Two capacitors, are connected in parallel and are connected serially to input power again；
Clamp circuit, in parallel with two capacitors, the clamp circuit is also connected serially to input power, the clamp circuit and input
Diode is also in series between power supply.
3. being used for the electric tail gate kicking sensor of automobile tail gate as described in claim 1, which is characterized in that the PCB electricity
It is provided with CAN communication interface and LIN communication interface simultaneously on the plate of road, the communication module is by digital data transmission to automobile tail gate
Controller is transmitted by LIN or CAN communication agreement.
4. being used for the electric tail gate kicking sensor of automobile tail gate as described in claim 1, which is characterized in that the PCB electricity
Plate level interference fit in road is welded in the plug connector of sensor outer housing, and the induction antenna passes through connector and sensor outer housing
Terminal connection, the sealing fixation of solid isolation layer that the PCB circuit board upper surface is formed after solidify by liquid-state epoxy resin
In in sensor outer housing.
5. being used for the electric tail gate kicking sensor of automobile tail gate as described in claim 1, which is characterized in that the PCB electricity
Road plate further includes decompression chip, and body of a motor car power supply powers to kicking sensor and is electrically connected decompression chip, decompression chip difference
The voltage of vehicle body power supply is converted to core circuit and accessory circuit by electrical connection core circuit and accessory circuit, the decompression chip
Suitable voltage respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821604500.6U CN209398156U (en) | 2018-09-29 | 2018-09-29 | Electric tail gate kicking sensor for automobile tail gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821604500.6U CN209398156U (en) | 2018-09-29 | 2018-09-29 | Electric tail gate kicking sensor for automobile tail gate |
Publications (1)
| Publication Number | Publication Date |
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| CN209398156U true CN209398156U (en) | 2019-09-17 |
Family
ID=67878104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821604500.6U Active CN209398156U (en) | 2018-09-29 | 2018-09-29 | Electric tail gate kicking sensor for automobile tail gate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281580A (en) * | 2018-09-29 | 2019-01-29 | 武汉佳特轿车零部件有限公司 | Electric tail gate kicking sensor and its control method for automobile tail gate |
| CN111252033A (en) * | 2020-02-26 | 2020-06-09 | 新立科技股份有限公司 | Automobile tail door kick recognition system and method |
| CN109281580B (en) * | 2018-09-29 | 2024-04-26 | 武汉佳特汽车科技有限公司 | Electric tail door foot kick sensor for automobile tail door and control method thereof |
-
2018
- 2018-09-29 CN CN201821604500.6U patent/CN209398156U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281580A (en) * | 2018-09-29 | 2019-01-29 | 武汉佳特轿车零部件有限公司 | Electric tail gate kicking sensor and its control method for automobile tail gate |
| CN109281580B (en) * | 2018-09-29 | 2024-04-26 | 武汉佳特汽车科技有限公司 | Electric tail door foot kick sensor for automobile tail door and control method thereof |
| CN111252033A (en) * | 2020-02-26 | 2020-06-09 | 新立科技股份有限公司 | Automobile tail door kick recognition system and method |
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Effective date of registration: 20210412 Address after: 430012 No.16, Hanhuang Road, Jiang'an District, Wuhan City, Hubei Province Patentee after: Wuhan Jiate Automobile Technology Co.,Ltd. Address before: 430012 No. 16 Hanhuang Road, Daishan Street, Jiangan District, Wuhan City, Hubei Province Patentee before: WUHAN GART SALOON PARTS & ACCESSORIES Co.,Ltd. |