CN211778936U - Electronic parking mechanism - Google Patents
Electronic parking mechanism Download PDFInfo
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- CN211778936U CN211778936U CN201922380915.0U CN201922380915U CN211778936U CN 211778936 U CN211778936 U CN 211778936U CN 201922380915 U CN201922380915 U CN 201922380915U CN 211778936 U CN211778936 U CN 211778936U
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Abstract
The utility model discloses an electron parking mechanism. The electronic parking mechanism comprises a parking cam assembly, a pawl assembly and a parking gear; the parking cam assembly comprises a parking guide shaft and a parking cam, the parking cam is sleeved on the parking guide shaft, and an arc-shaped bulge is arranged on one side of the parking cam in the circumferential direction, so that the pawl assembly is respectively positioned at a first position where the pawl assembly is parked with the parking gear and a second position where the pawl assembly is parked with the parking gear along with the rotation of the parking cam; the pawl assembly includes: the parking device comprises a pawl and a pawl shaft, wherein the upper part of the pawl can be in contact with the parking cam, the pawl shaft is arranged on one side of the pawl, and the pawl can rotate around the pawl shaft. The utility model provides a novel electronic parking mechanism, which can realize flexible contact and flexible drive; and under the condition that the parking motor is powered off, the parking mechanism can be mechanically unlocked in the cab, so that the safety is high, and the operation comfort is good.
Description
Technical Field
The utility model relates to a parking control field, concretely relates to electron parking mechanism.
Background
The electronic parking mechanism of the gearbox is a mechanism for preventing a vehicle from sliding or sliding backwards when the vehicle is parked on a road surface or on a slope. At present, most of new energy gearbox electronic parking mechanisms have insufficient structural flexibility, and the life cycle of products is limited; and mechanical unlocking mechanism arranges the worm department at the parking motor, after the parking motor loses the power, this kind of unblock mode needs the driver to operate at the vehicle bottom, just can implement mechanical unlocking, and the security is low, and the comfort level is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an electronic parking mechanism to solve or partially solve the above problems.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides an electronic parking mechanism, which comprises a parking cam component, a pawl component and a parking gear;
the parking cam component comprises a parking guide shaft and a parking cam, the parking cam is sleeved on the parking guide shaft, and an arc-shaped bulge is arranged on one side of the parking cam in the circumferential direction;
the pawl assembly comprises a pawl and a pawl shaft, the upper part of the pawl can be in contact with one side of the parking cam provided with the arc-shaped protrusion, the pawl shaft is arranged on one side of the pawl, and the pawl can rotate around the pawl shaft;
the parking gear can be fixed or rotated according to the fact that the pawl assembly is located at a first position where the pawl assembly is parked with the parking gear and at a second position where the pawl assembly is parked with the parking gear along with the rotation of the parking cam.
Furthermore, a circumferential profile extending along the axial direction of the parking guide shaft is arranged on a boss of the parking cam, the arc-shaped protrusion is arranged on the outer side of the circumferential profile, and the parking cam assembly further comprises an axial limiting block and a parking cam limiting plate;
the parking cam limiting plate is fixed on the parking guide shaft, the axial limiting block is arranged on the parking guide shaft in an interference fit mode, the parking cam is arranged between the axial limiting block and the parking cam limiting plate in a sleeved mode and is arranged on the parking guide shaft, and the parking cam limiting plate can drive the parking cam to rotate.
Furthermore, the parking cam limiting plate at least comprises a first blade portion and a second blade portion which are arranged at intervals, the first blade portion and the second blade portion are respectively arranged on two sides of the boss portion, a first spring column is arranged on one side, facing the boss portion, of the first blade portion, a corresponding second spring column is arranged on the boss portion, and springs are sleeved on the first spring column and the second spring column; the second blade part is formed with a curved claw which abuts against the other side of the protruding part.
Furthermore, parking guide shaft one end is flat axle, and the other end is the circle axle, the parking guide shaft runs through the gearbox box, the flat axle head and the parking motor of parking guide shaft are connected, the parking motor drives the parking guide shaft rotates.
Further, the parking cam assembly further comprises a thrust bearing, the thrust bearing is sleeved on the parking guide shaft, and the outer edge of the thrust bearing is fixed on a box body on the left side of the gearbox in an interference mode.
Further, the pawl assembly further comprises a roller, a roller pin, a torsion spring;
the upper part of the pawl is provided with a groove, the roller is fixed in the groove through the roller pin and is in contact with the parking cam, and the lower part of the pawl is provided with a convex block capable of being meshed with the parking gear; one side of the pawl is sleeved on the pawl shaft, the pawl shaft is fixed on the box bodies on two sides of the gearbox, and the pawl can rotate around the pawl shaft; one end of the torsion spring is fixed on the gearbox body, and the other end of the torsion spring is fixed on the pawl, so that the pawl and the parking cam are pre-compressed.
Furthermore, the electronic parking mechanism further comprises a mechanical unlocking device, the mechanical unlocking device comprises an elastic piece and an actuating mechanism, and the actuating mechanism drives the parking guide shaft to move along the axial direction, so that the parking cam and the upper portion of the pawl are respectively abutted to the arc-shaped bulge or one side of the parking cam in the axial direction of the arc-shaped bulge.
Furthermore, the actuating mechanism is a pull wire or a pull rod, one end of the pull wire or the pull rod is connected to one end of the parking guide shaft, the other end of the pull wire or the pull rod is connected to a control element in the cab, and the pull rod or the pull wire provides axial force for the parking guide shaft to axially move.
Furthermore, the elastic element is a spring bag, the spring bag is arranged between the parking cam assembly and a right box body of the gearbox, and pretightening force is preset when the elastic element is installed.
Further, the inboard guide way that holds the parking guide shaft that sets up of gearbox right side box, set up in the guide way and be used for sealing the sealing washer of parking guide shaft.
Adopt above-mentioned electron parking mechanism to have following advantage:
the special structures of the parking cam assembly and the pawl assembly ensure the connection of the electronic parking mechanism and the flexibility of the driving process, so that the operability and the service life of the electronic parking mechanism are improved;
the electronic parking mechanism can provide an emergency mechanical unlocking function under the condition that the parking motor is powered off; the parking guide shaft is connected with a pull rod or a pull wire outside the gearbox, so that a driver can realize mechanical unlocking in a cab; because the electronic parking mechanism can realize the unlocking in the cab under the pure mechanical and powerless power, the driver does not need to get off the vehicle, the safety performance is high and the operation comfort is good.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a schematic structural diagram of an electronic parking mechanism according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view illustrating an electronic parking mechanism in a parking state according to an embodiment of the present invention;
fig. 3 shows a schematic cross-sectional view of the electronic parking mechanism after mechanical unlocking according to an embodiment of the present invention;
fig. 4 is a schematic structural view illustrating a parking cam and a pawl in a parking state according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of the parking cam and the pawl after mechanical unlocking according to an embodiment of the present invention.
The reference numerals in the figures have the following meanings: 1. the parking device comprises an elastic piece, 2, a parking cam, 3, an axial limiting block, 4, a parking cam limiting plate, 5, a spring, 6, a parking guide shaft, 7, a thrust bearing, 8, a roller, 9, a roller pin, 10, a pawl, 11, a parking gear, 12, a pawl shaft, 13, a torsion spring, 14, a sealing ring, 15, a right box body of the gearbox, 16 and a left box body of the gearbox.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 shows a schematic structural diagram of an electronic parking mechanism according to an embodiment of the present invention; fig. 2 is a schematic cross-sectional view illustrating an electronic parking mechanism in a parking state according to an embodiment of the present invention; fig. 3 shows a schematic cross-sectional view of the electronic parking mechanism after mechanical unlocking according to an embodiment of the present invention; fig. 4 is a schematic structural view illustrating a parking cam and a pawl in a parking state according to an embodiment of the present invention; fig. 5 shows a schematic structural diagram of the parking cam and the pawl after mechanical unlocking according to an embodiment of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an electronic parking mechanism, which includes a parking cam assembly, a pawl assembly, and a parking gear 11.
Parking cam subassembly includes parking guide shaft 6 and parking cam 2, and 2 covers of parking cam are established on parking guide shaft 6, and one side of parking cam 2 is provided with the arc arch in week, through pawl subassembly with the protruding butt of the arc on the parking cam 2, control pawl subassembly along with parking cam 2's rotation be in respectively with parking gear 11 the first position of parking and parking gear 11 the second position of parking out.
The pawl assembly includes a pawl 10, a pawl shaft 12, an upper portion of the pawl 10 being contactable with the parking cam 2, the pawl shaft 12 being provided at one side of the pawl 10, the pawl 10 being rotatable about the pawl shaft 12.
The parking gear 11 is in a fixed state or a rotatable state along with the rotation of the parking cam 2 and the rotation of the pawl 10 along the pawl shaft 12, respectively, so that parking or driving is realized.
To sum up, the utility model discloses a this embodiment rotates through parking guide shaft 6, drives parking cam 2 rotatory, and the arc that sets up on the parking cam 2 is protruding, and when arc arch and pawl subassembly contact, the arc arch pushes down pawl subassembly and makes it be in the primary importance that parks in with parking gear 11, when arc arch and pawl subassembly separation, pawl subassembly and 11 separation of parking gear are in the secondary importance that parks out with parking gear 11 to realized the flexible parking of vehicle, obtained better parking effect.
In one embodiment, a circumferential profile extending in the axial direction of the parking guide shaft 6 is provided on the protruding portion of the parking cam 2, and an arc-shaped protrusion is provided on the outer side of the circumferential profile, when the circumferential profile on the parking cam 2 is in contact with the parking pawl assembly, the parking pawl assembly is in the second position parked with the parking gear 11, and the circumferential profile plays a role in defining the position of the parking pawl assembly, so that the parking pawl assembly can move within a certain range. The parking cam assembly further comprises an axial limiting block 3 and a parking cam limiting plate 4;
parking cam limiting plate 4 is fixed on parking guide shaft 6, and 3 interference covers of axial stopper are established on parking guide shaft 6, and parking cam 2 covers are established on parking guide shaft 6 between axial stopper 3 and parking cam limiting plate 4, and parking cam limiting plate 4 can drive parking cam 2 and rotate. The axial limiting block 3 limits the position of the parking cam 2, and the parking cam 2 can flexibly rotate on the parking guide shaft 6 between the axial limiting block 3 and the parking cam limiting plate 4.
In one embodiment, as shown in fig. 1, the parking cam limiting plate 4 includes at least a first blade portion and a second blade portion that are arranged at intervals, the first blade portion and the second blade portion are respectively arranged at two sides of the protruding portion, a first spring post is arranged at one side of the first blade portion facing the protruding portion, a corresponding second spring post is arranged on the protruding portion, and a spring 5 is sleeved on the first spring post and the second spring post; the second blade part is provided with a curved claw which is abutted against the other side of the bulge part. When turning into when stopping out the state by stopping in, parking guide shaft 6 anticlockwise rotation drives parking limiting plate 4 anticlockwise rotation, and curved claw on the parking limiting plate 4 is through with 2 butts of parking cam, and then drives 2 anticlockwise rotations of parking cam, and the arc arch is separated with pawl subassembly this moment, and circumference profile and pawl subassembly contact, pawl subassembly and 11 separation of parking gear realize stopping out the action. When the parking state is changed from the parking state to the parking state, the parking guide shaft 6 rotates clockwise to drive the parking limiting plate 4 to rotate clockwise, the first spring column on the parking limiting plate 4 presses the spring 5 downwards, the parking cam 2 rotates clockwise due to the action of the spring 5, the circumferential profile is separated from the pawl assembly, the arc-shaped protrusion is in contact with the pawl assembly, and the pawl assembly is pressed downwards to be meshed with the parking gear 11, so that the parking action is realized. The positional relationship of the parking cam 2 and the pawl 10 in the parking state is shown in fig. 4.
In one embodiment, one end of the parking guide shaft 6 is a flat shaft, the other end of the parking guide shaft is a round shaft, the parking guide shaft 6 penetrates through a gearbox body, the flat shaft end of the parking guide shaft 6 is connected with a parking motor, and the parking motor drives the parking guide shaft 6 to rotate. The flat shaft in this embodiment is convenient for the connection and the drive of parking motor, and of course, the flat shaft is not necessary, as long as can realize all being in with the structure of being connected of dismantling of parking motor the utility model discloses a protection scope.
In one embodiment, the parking cam assembly further comprises a thrust bearing 7, the thrust bearing 7 is sleeved on the parking guide shaft 6, and the outer edge of the thrust bearing 7 is fixed on the left gearbox body 16 of the gearbox in an interference mode. The arrangement of the thrust bearing 7 ensures that the parking cam assembly can rotate flexibly.
In one embodiment, as shown in fig. 1, the pawl assembly further includes a roller 8, a roller pin 9, and a torsion spring 13.
In order to improve the connection reliability of the pawl 10 and the parking cam 2, reduce the friction force and abrasion of the joint of the upper part of the pawl 10 and the parking cam 2 and prolong the service life of the pawl, the upper part of the pawl 10 is provided with a groove, a roller 8 is fixed in the groove through a roller pin 9, the roller 8 is in contact with the parking cam 2, and the lower part of the pawl 10 is provided with a lug which can be meshed with a parking gear 11.
When the electronic parking mechanism is in a parking state, the pawl 10 is pressed down by the parking cam 2, so that a convex block at the lower part of the pawl 10 is meshed with the parking gear 11, and parking is realized; one side of the pawl 10 is sleeved on a pawl shaft 12, the pawl shaft 12 is fixed on the box bodies on two sides of the gearbox, and the pawl 10 can rotate around the pawl shaft 12; one end of a torsion spring 13 is fixed on the gearbox body, the other end of the torsion spring 13 is fixed on the pawl 10, the torsion spring 13 has certain pretightening force when being installed, the pawl 10 is always lifted up by the pretightening force, and the pawl 10 and the parking cam 2 are enabled to be pre-compacted. The roller 8 can roll along the roller pin 9 in the radial direction, reducing the friction force between the parking cam 2 and the pawl 10, and the roller 8 is in contact with the circumferential profile or the arc-shaped bulge on the parking cam 2.
In one embodiment, the electronic parking mechanism further comprises a mechanical unlocking device, the mechanical unlocking device comprises an elastic member 11 and an actuating mechanism, the actuating mechanism is connected with the round shaft end of the parking guide shaft 6, and the actuating mechanism drives the parking guide shaft 6 to move along the axial direction, so that the parking cam 2 and the upper portion of the pawl 10 abut against the arc-shaped protrusion or one side of the parking cam 2 in the axial direction of the arc-shaped protrusion respectively.
When the parking motor loses the power supply, and when the electronic parking mechanism is in the parking state, the parking guide shaft 6 is driven to axially move by the actuating mechanism, so that the parking cam 2 is driven to axially move, the arc-shaped protrusion on the parking cam 2 is separated from the roller 8, the circumferential profile is contacted with the roller 8, the pawl 10 is lifted up under the action of the torsional spring 13 force, the convex block at the lower part of the pawl 10 is separated from the parking gear 11, parking is realized, and the vehicle is guaranteed to be unlocked under the condition without electric energy. The positional relationship of the parking cam 2 and the pawl 10 after mechanical unlocking is shown in fig. 5.
It can be seen that, according to the abutting relationship between the pawl 10 and the circumferential profile of the parking cam 2, when the parking gear 11 is in the parking fixed state, the upper portion of the pawl 10 abuts against the arc-shaped projection on the circumferential profile of the parking cam 2; when the parking motor works normally, the upper part of the pawl 10 is abutted with the circumferential profile of one side of the arc-shaped bulge in the circumferential direction; after unlocking by the mechanical unlocking device, the upper portion of the pawl 10 abuts against the circumferential profile of the arc-shaped projection on one side in the axial direction.
In one embodiment, the actuating mechanism is a pull wire or a pull rod, one end of the pull wire or the pull rod is connected to one end of the parking guide shaft 6, the other end of the pull wire or the pull rod is connected to a control element in the cab, the pull rod or the pull wire provides axial force for the parking guide shaft 6 to axially move, so that the parking guide shaft 6 axially moves towards the round shaft end, and the other end of the pull wire or the pull rod is arranged in the cab, so that a driver can conveniently unlock the parking mechanism through the pull wire or the pull rod in the cab.
In one embodiment, the elastic element 1 is a spring pack, as shown in fig. 2 and 3, the spring pack is disposed between the parking cam assembly and the right gearbox casing 15, and the elastic element 1 is pre-tensioned during installation. Elastic component 1 is close to gearbox right side box 15 because the effect of pretension, and when carrying out mechanical unblock to the electronic parking mechanism, parking cam subassembly is to the circular shaft end axial displacement of parking guide shaft 6, and elastic component 1 is compressed further to gearbox right side box 15.
In one embodiment, as shown in fig. 2 and 3, the right casing 15 of the transmission is provided with a cylindrical protrusion inside, which includes a guide groove for accommodating the parking guide shaft 6, and a sealing ring 14 for sealing the parking guide shaft 6 is provided in the guide groove. The round shaft end of the parking guide shaft 6 can axially move in the guide groove to realize mechanical unlocking, and the sealing ring 14 is arranged at the contact position of the interior of the guide groove and the parking guide shaft 6 to play a role in sealing and prevent dust from entering the box body of the gearbox.
In summary, the utility model provides an electronic parking mechanism, which comprises a parking cam assembly, a pawl assembly and a parking gear; the parking cam component comprises a parking guide shaft and a parking cam, the parking cam is sleeved on the parking guide shaft, and one side of the parking cam is circumferentially provided with an arc-shaped bulge, so that the pawl component is respectively positioned at a first position where the pawl component is parked in the parking gear and a second position where the pawl component is parked out of the parking gear along with the rotation of the parking cam; the pawl assembly comprises a pawl and a pawl shaft, the upper portion of the pawl can be in contact with the parking cam, the pawl shaft is arranged on one side of the pawl, and the pawl can rotate around the pawl shaft. The electronic parking mechanism provided by the utility model can realize flexible contact and drive; the parking guide shaft is connected with a pull rod or a pull wire outside the gearbox, so that a driver can realize mechanical unlocking in a cab; the electronic parking mechanism can realize the unlocking in the cab under pure mechanical and powerless power, and does not need the driver to get off; high safety performance and good operation comfort.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes, substitutions or improvements within the technical scope of the present invention, and all should be covered by the scope of the present invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Claims (10)
1. The electronic parking mechanism is characterized by comprising a parking cam assembly, a pawl assembly and a parking gear;
the parking cam component comprises a parking guide shaft and a parking cam, the parking cam is sleeved on the parking guide shaft, and an arc-shaped bulge is arranged on one side of the parking cam in the circumferential direction;
the pawl assembly comprises a pawl and a pawl shaft, the upper part of the pawl can be in contact with one side of the parking cam provided with the arc-shaped protrusion, the pawl shaft is arranged on one side of the pawl, and the pawl can rotate around the pawl shaft;
the parking gear can be fixed or rotated according to the fact that the pawl assembly is located at a first position where the pawl assembly is parked with the parking gear and at a second position where the pawl assembly is parked with the parking gear along with the rotation of the parking cam.
2. The electronic parking mechanism according to claim 1, wherein a circumferential profile extending in an axial direction of the parking guide shaft is provided on the boss portion of the parking cam, the arc-shaped protrusion is provided on an outer side of the circumferential profile, and the parking cam assembly further includes an axial stopper and a parking cam stopper plate;
the parking cam limiting plate is fixed on the parking guide shaft, the axial limiting block is arranged on the parking guide shaft in an interference fit mode, the parking cam is arranged between the axial limiting block and the parking cam limiting plate in a sleeved mode and is arranged on the parking guide shaft, and the parking cam limiting plate can drive the parking cam to rotate.
3. The electronic parking mechanism according to claim 2, wherein the parking cam limiting plate at least comprises a first blade portion and a second blade portion which are arranged at intervals, the first blade portion and the second blade portion are respectively arranged at two sides of the boss portion, a first spring post is arranged on one side of the first blade portion facing the boss portion, a corresponding second spring post is arranged on the boss portion, and springs are sleeved on the first spring post and the second spring post; the second blade part is formed with a curved claw which abuts against the other side of the protruding part.
4. The electronic parking mechanism according to claim 2, wherein one end of the parking guide shaft is a flat shaft, the other end of the parking guide shaft is a round shaft, the parking guide shaft penetrates through a gearbox body, the flat shaft end of the parking guide shaft is connected with a parking motor, and the parking motor drives the parking guide shaft to rotate.
5. The electronic parking mechanism of claim 2, wherein the parking cam assembly further comprises a thrust bearing, the thrust bearing is sleeved on the parking guide shaft, and the outer edge of the thrust bearing is fixed on a left box body of the gearbox in an interference manner.
6. The electronic parking mechanism of claim 1 wherein the pawl assembly further comprises a roller, a roller pin, a torsion spring;
the upper part of the pawl is provided with a groove, the roller is fixed in the groove through the roller pin and is in contact with the parking cam, and the lower part of the pawl is provided with a convex block capable of being meshed with the parking gear; one side of the pawl is sleeved on the pawl shaft, the pawl shaft is fixed on the box bodies on two sides of the gearbox, and the pawl can rotate around the pawl shaft; one end of the torsion spring is fixed on the gearbox body, and the other end of the torsion spring is fixed on the pawl, so that the pawl and the parking cam are pre-compressed.
7. The electronic parking mechanism according to any one of claims 1 to 6, further comprising a mechanical unlocking device, wherein the mechanical unlocking device comprises an elastic member and an actuator, and the actuator drives the parking guide shaft to move in the axial direction, so that the parking cam and the upper portion of the pawl abut against the arc-shaped protrusion or one side of the parking cam in the axial direction of the arc-shaped protrusion respectively.
8. The electronic parking mechanism of claim 7 wherein the actuator is a pull wire or a pull rod, one end of the pull wire or the pull rod is connected to one end of the parking guide shaft, the other end of the pull wire or the pull rod is connected to a control member in a cab, and the pull rod or the pull wire provides an axial force for the parking guide shaft to move axially.
9. The electronic parking mechanism as claimed in claim 7, wherein the elastic member is a spring pack, the spring pack is disposed between the parking cam assembly and a right box body of the transmission, and the elastic member is pre-tensioned during installation.
10. The electronic parking mechanism according to claim 9, wherein a guide groove for accommodating the parking guide shaft is provided inside the right side case of the transmission case, and a seal ring for sealing the parking guide shaft is provided in the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922380915.0U CN211778936U (en) | 2019-12-26 | 2019-12-26 | Electronic parking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922380915.0U CN211778936U (en) | 2019-12-26 | 2019-12-26 | Electronic parking mechanism |
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| CN211778936U true CN211778936U (en) | 2020-10-27 |
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| CN201922380915.0U Active CN211778936U (en) | 2019-12-26 | 2019-12-26 | Electronic parking mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953341A (en) * | 2019-12-26 | 2020-04-03 | 精进电动科技股份有限公司 | Electronic parking mechanism |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953341A (en) * | 2019-12-26 | 2020-04-03 | 精进电动科技股份有限公司 | Electronic parking mechanism |
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