CN109282027A - A kind of P grades of executive device and method - Google Patents
A kind of P grades of executive device and method Download PDFInfo
- Publication number
- CN109282027A CN109282027A CN201811496309.9A CN201811496309A CN109282027A CN 109282027 A CN109282027 A CN 109282027A CN 201811496309 A CN201811496309 A CN 201811496309A CN 109282027 A CN109282027 A CN 109282027A
- Authority
- CN
- China
- Prior art keywords
- control pin
- pawl
- control
- grades
- oil cylinder
- 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.)
- Pending
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Classifications
-
- 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
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
-
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
-
- 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
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a kind of P grades of executive device and method, device includes parking gear, detent mechanism and hydraulic drive mechanism；Detent mechanism includes pawl shaft, pawl and ratchet pawl reset part, and pawl shaft is mounted on the shell of clutch, and pawl is equipped with control groove；Hydraulic drive mechanism includes hydraulic valve, oil cylinder and control pin assemblies；Control pin assemblies include control pin, drive disk and elastic component, and one end and the control pin hole of control pin are slidably matched, and drive disk is mounted on control pin, and the inner wall of drive disk and oil cylinder is slidably matched；P grades of executive devices have execution state and disengaged position.The P shelves executive device of the disclosure is cooperated or is separated with parking gear by the oil pressure cntrol control pin of gear box hydraulic system, so that the output shaft of parking gear locking or release clutch, achievees the purpose that P grades of execution or disengaging.The mode of this hydraulic control is simple compared to automatically controlled mode structure, at low cost, is still able to achieve brake function under vehicle flameout state.
Description
Technical field
The present invention relates to automobile gears to adjust field, more particularly, to a kind of P grades of executive device and method.
Background technique
P grades (Parking grades, parking position switch) are one of the most common type gears in automatic transmission vehicle, and function is after stopping
Brake, prevents vehicle from moving.
Existing P grades of executive device includes pawl, driving motor and controller, and pawl is mounted in gearbox, controller
According to the gear on the signal control driving motor driving pawl locking output shaft of gear-box received, to realize brake function
Energy.The arrangement of the driving motor of this P grades of executive device, which will improve gearbox structure is complicated, to be changed.Moreover, driving motor and control
It is connected by the way of harness grafting between device processed, needs to guarantee leakproofness and suitable temperature at electrical connection between the two
Degree.
Therefore, how to provide that a kind of structure is simple, the P shelves executive device that can effectively simplify automobile variable speed control system becomes
The technical problem of this field urgent need to resolve.
Summary of the invention
It is an object of the present invention to provide a kind of structure is simple, the P shelves that can effectively simplify automobile variable speed control system are held
The new solution that luggage is set.
According to the first aspect of the invention, a kind of P grades of executive device is provided.
The P grades of executive device includes parking gear, detent mechanism and hydraulic drive mechanism；Wherein,
The parking gear is fixedly connected with the output shaft of clutch；
The detent mechanism includes pawl shaft, pawl and ratchet pawl reset part, and the pawl shaft is mounted on clutch
On shell, the pawl is disposed about the pawl shaft rotation, with locking or the parking gear is left, on the pawl
Equipped with control groove, the ratchet pawl reset part is arranged to be used for providing reset force to the pawl, so that the pawl is not
The position for leaving the parking gear is maintained when by external force；
The hydraulic drive mechanism includes that hydraulic valve, oil cylinder and control pin assemblies, the hydraulic valve are arranged to be used for controlling
The on-off of oil duct between gear box hydraulic oil circuit processed and the oil cylinder, the oil cylinder is mounted on the shell of clutch, described
Oil cylinder is equipped with control pin hole, and the control pin assemblies are mounted in the oil cylinder；
The control pin assemblies include control pin, drive disk and elastic component, one end of the control pin and the control pin
Hole is slidably matched, and the drive disk is mounted on the control pin, and the inner wall of the drive disk and the oil cylinder is slidably matched,
The elastic component is arranged to be used for providing the elastic force towards the control pin hole to the control pin；
The P grades of executive device has execution state and disengaged position；
Under the execution state, the hydraulic valve is closed, effect of the control pin in the elastic force of the elastic component
Under moved along the control pin hole towards the control groove, until the control pin matches with the control groove, with
The pawl is located on the position of parking gear described in locking；
Under the disengaged position, the hydraulic valve is opened, and the oil liquid in gear box hydraulic oil circuit enters the oil cylinder, institute
State the elastic force court that drive disk is pushed the control pin to overcome the elastic component by the active force from the oil cylinder inner fluid
Mobile to the direction far from the control groove, until the control pin leaves the control groove, the pawl is by pawl
The reset force of return unit is rotated around pawl shaft, to discharge the parking gear.
Optionally, the pawl is equipped with a cooperating teeth matched with the tooth socket of the parking gear.
Optionally, the ratchet pawl reset part is torsional spring, and the boss on one end of the torsional spring and the shell of clutch matches
It closes, the other end of the torsional spring is matched with the pawl.
Optionally, the control groove has arc inner wall, one end that the control pin is matched with the control groove
With spherical surface.
Optionally, the control pin assemblies further include drive disk oil sealing, and the drive disk oil sealing is set in the drive disk
Circumferential edge on.
Optionally, the control pin assemblies further include snap ring；
The control pin is equipped with annular groove and drive disk retention bead, and the snap ring is matched with the annular groove, with
The drive disk is located between the snap ring and the drive disk retention bead.
Optionally, the hydraulic drive mechanism further includes blanking cover, the oil cylinder be equipped with blanking cover mouth, the blanking cover with it is described
Blanking cover mouth is tightly connected, and to form control pin assembly chambeies between the blanking cover and the oil cylinder, the control pin assemblies are located at
In the control pin assembly chambeies.
Optionally, the blanking cover is equipped with control guide, the inner hole of the other end of the control pin and the control guide
It is slidably matched.
Optionally, the elastic component is compressed spring, and the elastic component is set in the control pin and puts on.
According to the second aspect of the invention, a kind of method based on P shelves executive device of the invention is provided.
The P grades of execution method includes the following steps:
Judge the control signal that TCU is issued；
If the control signal that TCU is issued is to execute P grades, controls hydraulic valve pressure release and close；
If the control signal that TCU is issued is to be detached from P grades, hydraulic valve unlatching is controlled.
The P shelves executive device of the disclosure cooperated by the oil pressure cntrol control pin of gear box hydraulic system and parking gear or
Separation, so that the output shaft of parking gear locking or release clutch, achievees the purpose that P grades of execution or disengaging.This hydraulic control
The mode of system is simple compared to automatically controlled mode structure, at low cost, is still able to achieve brake function under vehicle flameout state.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the structural schematic diagram of the P shelves executive device embodiment of the disclosure.
Fig. 2 is the fragmentary sectional view of the P shelves executive device embodiment of the disclosure.
Fig. 3 is the partial enlarged view of Fig. 2.
It is indicated in figure as follows:
Parking gear -1, pawl shaft -2, pawl -3 control groove -31, cooperating teeth -32, ratchet pawl reset part -4, oil cylinder -
5, control pin -6, drive disk retention bead -60, drive disk -7, elastic component -8, drive disk oil sealing -9, snap ring -10, blanking cover -11,
Control guide -110.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
As shown in Figure 1 to Figure 3, the P shelves executive device of the disclosure includes parking gear 1, detent mechanism and hydraulic driving machine
Structure.
Parking gear 1 is fixedly connected with the output shaft of clutch, and being fixedly connected between the two can be by welding or spline
The modes such as connection are realized.
Detent mechanism includes pawl shaft 2, pawl 3 and ratchet pawl reset part 4.Pawl shaft 2 is mounted on the shell of clutch
On.Pawl 3 can be rotated around pawl shaft 2, with locking or leave parking gear 1.Pawl 3 is equipped with control groove 31.Pawl is multiple
Position part 4 can be used for providing reset force to pawl 3, maintain the position for leaving parking gear 1 when so that pawl 3 is not by external force
It sets.
Hydraulic drive mechanism includes hydraulic valve (not shown), oil cylinder 5 and control pin assemblies.Hydraulic valve can be used for controlling
The on-off of oil duct between gear box hydraulic oil circuit and oil cylinder 5.Oil cylinder 5 is mounted on the shell of clutch, and oil cylinder 5 is equipped with control
Hole is made and sold, control pin assemblies are mounted in oil cylinder 5.
Controlling pin assemblies includes control pin 6, drive disk 7 and elastic component 8.Match with control pin hole sliding one end of control pin 6
It closes.Drive disk 7 is mounted on control pin 6, and drive disk 7 and the inner wall of oil cylinder 5 are slidably matched.Elastic component 8 can be used for control
Pin 6 provides the elastic force towards control pin hole.Elastic component 8 may be, for example, spring or elastic slice etc..
P grades of executive devices have execution state and disengaged position.
Under execution state, hydraulic valve is closed, and control pin 6 is under the action of the elastic force of elastic component 8 along control pin hole
It is mobile towards control groove 31, until control pin 6 is matched with control groove 31, pawl 3 is located in locking parking gear 1
Position on.The power of gearbox can not transmit outward at this time, and vehicle can be locked.
In a disengaged condition, hydraulic valve is opened, and the oil liquid in gear box hydraulic oil circuit enters oil cylinder 5, and drive disk 7 is arrived
Push control pin 6 that the elastic force of elastic component 8 is overcome to be directed away from the direction shifting of control groove 31 from the active force of 5 inner fluid of oil cylinder
Dynamic, until control pin 6 leaves control groove 31, pawl 3 is rotated by the reset force of ratchet pawl reset part 4 around pawl shaft 2, to release
Put parking gear 1.The power of gearbox can transmit outward at this time, and vehicle is not locked.
The P shelves executive device of the disclosure is cooperated by the oil pressure cntrol control pin 6 and parking gear 1 of gear box hydraulic system
Or separation, so that the output shaft of 1 locking of parking gear or release clutch, achievees the purpose that P grades of execution or disengaging.It is this hydraulic
The mode of control is simple compared to automatically controlled mode structure, at low cost, is still able to achieve brake function under vehicle flameout state.
In one embodiment of the P shelves executive device of the disclosure, in order to improve the stability of P grades of executive devices, pawl 3
It is equipped with a cooperating teeth 32 matched with the tooth socket of parking gear 1.
In one embodiment of the P shelves executive device of the disclosure, in order to improve the stability of P grades of executive devices, pawl
Return unit 4 is torsional spring.One end of torsional spring is matched with the boss on the shell of clutch, and the other end and pawl 3 of torsional spring match
It closes.
In one embodiment of the P shelves executive device of the disclosure, in order to improve the stability of P grades of executive devices, control
Groove 31 has arc inner wall.One end that control pin 6 is matched with control groove 31 has spherical surface.
In one embodiment of the P shelves executive device of the disclosure, in order to improve the stability of P grades of executive devices, control
Pin assemblies further include drive disk oil sealing 9.Drive disk oil sealing 9 is set on the circumferential edge of drive disk 7, in drive disk 7 and oil
Leakproofness is kept when the inner wall contact of cylinder 5.
In one embodiment of the P shelves executive device of the disclosure, in order to improve the stability of P grades of executive devices, control
Pin assemblies further include snap ring 10.Control pin 6 is equipped with annular groove and drive disk retention bead 60.Snap ring 10 and annular groove match
It closes, drive disk 7 is located between snap ring 10 and drive disk retention bead 60.
It is hydraulic in order to improve the stability of P grades of executive devices in one embodiment of the P shelves executive device of the disclosure
Driving mechanism further includes blanking cover 11.Oil cylinder 5 is equipped with blanking cover mouth, and blanking cover 11 and blanking cover mouth are tightly connected, in blanking cover 11 and oil
Control pin assembly chambeies are formed between cylinder 5.Control pin assemblies are located in control pin assembly chambeies.
Further, blanking cover 11 is equipped with control guide 110.The other end of control pin 6 and the inner hole of control guide 110 are sliding
Dynamic cooperation.
Further, elastic component 8 is compressed spring, and elastic component 8 is set on control guide 110.
Further, the depth of the inner hole of guide 110 is controlled as the 1/6-1/4 of the length of control pin 6.
The disclosure additionally provides a kind of method of P shelves executive device based on the disclosure.
The P grades of execution method includes the following steps:
Judge the control signal that TCU (automatic gear-box control unit) issues.The control signal is controlled by shift control bar.
If the control signal that TCU is issued is to execute P grades, controls hydraulic valve pressure release and close.After hydraulic valve is closed, control
Pin 6 is moved along control pin hole towards control groove 31 under the action of the elastic force of elastic component 8, until control pin 6 and control
Groove 31 matches, and pawl 3 is located on the position of locking parking gear 1.The power of gearbox can not be to unofficial biography at this time
It passs, vehicle is locked.Control pin 6 remains to match with control groove 31 under vehicle flameout state, not will receive the factors such as power-off
It influences.
If the control signal that TCU is issued is to be detached from P grades, hydraulic valve unlatching is controlled.After hydraulic valve is opened, gear box hydraulic
Oil liquid in oil circuit enters oil cylinder 5, and drive disk 7 is pushed control pin 6 to overcome elastic component by the active force from 5 inner fluid of oil cylinder
The direction that 8 elastic force is directed away from control groove 31 is mobile, until control pin 6 leaves control groove 31, pawl 3 is by pawl
The reset force of return unit 4 is rotated around pawl shaft 2, to discharge parking gear 1.The power of gearbox can transmit outward at this time, whole
Vehicle is not locked.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of P grades of executive device, which is characterized in that including parking gear, detent mechanism and hydraulic drive mechanism；Wherein,
The parking gear is fixedly connected with the output shaft of clutch；
The detent mechanism includes pawl shaft, pawl and ratchet pawl reset part, and the pawl shaft is mounted on the shell of clutch
On, the pawl is disposed about the pawl shaft rotation, with locking or leaves the parking gear, the pawl is equipped with
Groove is controlled, the ratchet pawl reset part is arranged to be used for providing reset force to the pawl, so that the pawl is not by outer
The masterpiece used time maintains the position for leaving the parking gear；
The hydraulic drive mechanism includes hydraulic valve, oil cylinder and control pin assemblies, and the hydraulic valve is arranged to be used for control and becomes
The on-off of oil duct between fast case hydraulic circuit and the oil cylinder, the oil cylinder are mounted on the shell of clutch, the oil cylinder
It is equipped with control pin hole, the control pin assemblies are mounted in the oil cylinder；
The control pin assemblies include control pin, drive disk and elastic component, and one end of the control pin and the control pin hole are sliding
Dynamic cooperation, the drive disk is mounted on the control pin, and the inner wall of the drive disk and the oil cylinder is slidably matched, described
Elastic component is arranged to be used for providing the elastic force towards the control pin hole to the control pin；
The P grades of executive device has execution state and disengaged position；
Under the execution state, the hydraulic valve is closed, the control pin edge under the action of elastic force of the elastic component
The control pin hole it is mobile towards the control groove, until the control pin is matched with the control groove, by institute
Pawl is stated to be located on the position of parking gear described in locking；
Under the disengaged position, the hydraulic valve is opened, and the oil liquid in gear box hydraulic oil circuit enters the oil cylinder, the drive
Moving plate is pushed the control pin to overcome the elastic force of the elastic component towards far by the active force from the oil cylinder inner fluid
Direction from the control groove is mobile, until the control pin leaves the control groove, the pawl is by ratchet pawl reset
The reset force of part is rotated around pawl shaft, to discharge the parking gear.
2. P grades of executive device according to claim 1, which is characterized in that the pawl is equipped with one and the parking
The cooperating teeth that the tooth socket of gear matches.
3. P grades of executive device according to claim 1, which is characterized in that the ratchet pawl reset part is torsional spring, the torsional spring
One end matched with the boss on the shell of clutch, the other end of the torsional spring is matched with the pawl.
4. P grades of executive device according to claim 1, which is characterized in that the control groove has arc inner wall, described
One end that control pin is matched with the control groove has spherical surface.
5. P grades of executive device according to claim 1, which is characterized in that the control pin assemblies further include drive disk oil
Envelope, the drive disk oil sealing are set on the circumferential edge of the drive disk.
6. P grades of executive device according to claim 1, which is characterized in that the control pin assemblies further include snap ring；
The control pin is equipped with annular groove and drive disk retention bead, and the snap ring is matched with the annular groove, by institute
Drive disk is stated to be located between the snap ring and the drive disk retention bead.
7. P grades of executive device according to claim 1, which is characterized in that the hydraulic drive mechanism further includes blanking cover, institute
It states oil cylinder to be tightly connected equipped with blanking cover mouth, the blanking cover and the blanking cover mouth, with the shape between the blanking cover and the oil cylinder
At control pin assembly chambeies, the control pin assemblies are located in the control pin assembly chambeies.
8. P grades of executive device according to claim 7, which is characterized in that the blanking cover is equipped with control guide, the control
The other end of cotter and the inner hole of the control guide are slidably matched.
9. P grades of executive device according to claim 8, which is characterized in that the elastic component is compressed spring, and the bullet
Property part is set in the control pin and puts on.
10. a kind of method based on P described in any one of claim 1 to 9 grades of executive device, which is characterized in that including such as
Lower step:
Judge the control signal that TCU is issued；
If the control signal that TCU is issued is to execute P grades, controls hydraulic valve pressure release and close；
If the control signal that TCU is issued is to be detached from P grades, hydraulic valve unlatching is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811496309.9A CN109282027A (en) | 2018-12-07 | 2018-12-07 | A kind of P grades of executive device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811496309.9A CN109282027A (en) | 2018-12-07 | 2018-12-07 | A kind of P grades of executive device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109282027A true CN109282027A (en) | 2019-01-29 |
Family
ID=65173986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811496309.9A Pending CN109282027A (en) | 2018-12-07 | 2018-12-07 | A kind of P grades of executive device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109282027A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181520A1 (en) * | 2019-03-13 | 2020-09-17 | 舍弗勒技术股份两合公司 | P gear locking mechanism for in-wheel drive system, in-wheel drive system, and motor vehicle |
| WO2021207885A1 (en) * | 2020-04-13 | 2021-10-21 | 义乌吉利自动变速器有限公司 | Common control apparatus for parking and clutch, operating method therefor, and vehicle |
| CN114776802A (en) * | 2022-04-20 | 2022-07-22 | 哈尔滨东安汽车发动机制造有限公司 | Control method for automatically controlling and releasing parking of automatic transmission |
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| CN205918888U (en) * | 2016-07-12 | 2017-02-01 | 浙江吉利变速器有限公司 | Automatic parking mechanism |
| CN207393933U (en) * | 2017-10-09 | 2018-05-22 | 科力远混合动力技术有限公司 | Hydraulic-driven parking and braking mechanism |
| CN207406754U (en) * | 2017-10-25 | 2018-05-25 | 科力远混合动力技术有限公司 | Gear box hydraulic drives halting mechanism |
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| CN102678917A (en) * | 2010-12-22 | 2012-09-19 | 奥迪股份公司 | Device for operating parking lock |
| CN104412012A (en) * | 2012-07-04 | 2015-03-11 | 奥迪股份公司 | Actuator for activating a parking lock |
| CN105593579A (en) * | 2013-10-23 | 2016-05-18 | 爱信艾达株式会社 | Parking device |
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| CN106351989A (en) * | 2015-07-16 | 2017-01-25 | 通用汽车环球科技运作有限责任公司 | Hydraulic park gear assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181520A1 (en) * | 2019-03-13 | 2020-09-17 | 舍弗勒技术股份两合公司 | P gear locking mechanism for in-wheel drive system, in-wheel drive system, and motor vehicle |
| WO2021207885A1 (en) * | 2020-04-13 | 2021-10-21 | 义乌吉利自动变速器有限公司 | Common control apparatus for parking and clutch, operating method therefor, and vehicle |
| CN114776802A (en) * | 2022-04-20 | 2022-07-22 | 哈尔滨东安汽车发动机制造有限公司 | Control method for automatically controlling and releasing parking of automatic transmission |
| CN114776802B (en) * | 2022-04-20 | 2024-05-14 | 哈尔滨东安汽车发动机制造有限公司 | Control method for automatically controlling release of parking of automatic transmission |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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Application publication date: 20190129 |