CN104455401A - Parking locking device - Google Patents
Parking locking device Download PDFInfo
- Publication number
- CN104455401A CN104455401A CN201410516911.XA CN201410516911A CN104455401A CN 104455401 A CN104455401 A CN 104455401A CN 201410516911 A CN201410516911 A CN 201410516911A CN 104455401 A CN104455401 A CN 104455401A
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- China
- Prior art keywords
- housing
- parking
- gear
- parking lock
- lock device
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a parking locking device. The parking locking device comprises a shell, and a parking gear installed at one end of a power transmission shaft is contained in the shell; the parking locking device further comprises a locking mechanism, an elastic positioning mechanism and an unlocking mechanism, wherein the locking mechanism can be meshed with the parking gear for clamping during parking, the elastic positioning mechanism enables the parking gear and the shell to be indirectly positioned and clamped, and the unlocking mechanism is used for ending positioning of the parking gear on the shell. During locking operation, the parking locking device has the higher power transmission efficiency, is compact in structure and can be effectively positioned after parking locking; locking failures are prevented, and the reliability of the parking locking function can be guaranteed.
Description
Technical field
The present invention relates to automobile technical field, particularly a kind of parking lock device.
Background technique
Generally, vehicle in traveling can carry out forced deceleration by braking system and even stop under the manipulation of driver, but the braking force of braking system may be smaller to the braking force that vehicle produces, and then can not completely wheel locking, certain potential safety hazard will be there is like this, such as just have after stopping on ramp and slip the danger of car, therefore, it is possible to keep parking lock system as you were to arise at the historic moment after making vehicle parking.
A kind of structural type of existing parking lock system is comprise the motor, turbine and worm decelerator, driving mechanism and the park pawl that connect successively, the side of park pawl is provided with the parking gear that can combine with its generation or be separated, and parking gear is fixed on power transmission shaft.When parking, motor output power passes to driving mechanism after being turned round by turbine and worm decelerator deceleration increasing, and driving mechanism promotes park pawl again and engages with parking gear, thus power transmission shaft is stopped operating, and realizes parking lock function thus.When removing parking, motor reversal, and after again being turned round by turbine and worm decelerator deceleration increasing, by transmission of power to driving mechanism, to make driving mechanism return, while driving mechanism return, park pawl also can be separated with parking gear under elastic reaction, realizes the releasing of parking lock function thus.
Above-mentioned parking lock system can carry out good locking when vehicle parking to power transmission shaft, to prevent the problems such as car of slipping.But adopt turbine and worm speed reducer in above-mentioned parking lock system, its transmission efficiency is low, and it is large to take up space, and is unfavorable for compactness, light-weight design.And in above-mentioned parking lock system, after parking puts locking in place, there is no effective mechanical positioner yet, thus losing efficacy easily appears in parking lock, and the reliability of system is lower.
Summary of the invention
In view of this, the present invention is intended to propose a kind of parking lock device, and it has higher power transmission efficiency in locking operation, compact structure, and after parking lock, effective location can be carried out to it, prevent locking and lost efficacy, ensure the reliability of parking lock function.
For achieving the above object, technological scheme of the present invention is achieved in that
A kind of parking lock device, comprises housing, is equipped with the parking gear being installed on power transmission shaft one end, also comprises in described housing:
Lockable mechanism, described lockable mechanism comprises rotating to be located in described housing and the actuation gear be in transmission connection with the driving mechanism be located at outside described housing, and the park pawl be arranged in described housing is rotated via transmission connecting mechanism, described park pawl is under the rotation of described actuation gear is ordered about, have and rotate around himself rotation axis, to carry out described parking gear engaging locking motion;
Elastic locating mechanism, described elastic locating mechanism comprises the elastic positioning member being connected at described actuation gear end, and the positioning hole be opened in along the rotation path of described elastic positioning member on described housing, when described elastic positioning member is relative with described positioning hole with described actuation gear rotation, have and stretch in described positioning hole under himself elasticity, the motion being positioned on described housing to make described actuation gear;
Release mechanism, described release mechanism comprises the unlock component being located at described hull outside, and be articulated with described unlock component one end and the push rod be actively located in described positioning hole, described push rod has and carries out pushing tow to the elastic positioning member stretched in described positioning hole, to make described elastic positioning member by the motion of deviating from described positioning hole under the driving of unlock component.
Further, described driving mechanism is motor.
Further, described park pawl is three that are distributed in described parking gear outer circumferential side.
Further, described transmission connecting mechanism comprises the park pawl connecting rod rotating and be arranged in described housing, and be installed on one end of described park pawl connecting rod and engage the driven gear be connected with described actuation gear, described park pawl is installed on the other end of described park pawl connecting rod.
Further, the end face being close to described positioning hole at described actuation gear is provided with positioning pin hole, and described elastic positioning member activity is located in described positioning pin hole.
Further, described elastic positioning member comprises the spring be connected in described positioning pin hole, and is connected at the locating stud of described spring free end.
Further, the one end being arranged in described positioning pin hole at described locating stud offers shrinkage pool, and the free end of described spring is connected in the shrinkage pool of described locating stud.
Further, described unlock component comprises the mounting plate be located on described hull outside end face, and rotates the trip lever be arranged on described mounting plate, and described push rod is articulated with one end of described trip lever.
Further, described trip lever is V-shaped, and rotation is located on described mounting plate in its bending place.
Further, be connected with between described push rod and housing or between described unlock component and housing when described push rod carries out pushing tow to the elastic positioning member stretched in described positioning hole, active force is applied, to make the elastic component of described push rod return to described push rod.
Relative to prior art, of the present invention have following advantage:
(1) parking lock device of the present invention, lockable mechanism adopts gear-driven form, it is compared existing Worm Wheel System form and has better power transmission efficiency, and gear drive is due to its structural feature, also compacter compared to worm-and-wheel gear structure, take up room little, be convenient to arrange; And adopt elastic locating mechanism and release mechanism that actuation gear can be made after parking lock to be positioned on housing, just can avoid thus occurring because locking power is not enough and occurring slipping the problems such as car, ensure that the effectively stable of parking lock function, and when removing parking lock, as long as order about push rod elastic positioning member is ejected by positioning hole, its operation is also simple and convenient, has good practicability.
(2) make park pawl be arranged as three and can realize more firm latch functions; Adopt park pawl connecting rod to connect the structural type of driven gear and park pawl, its structure is simple, be convenient to design and manufacture and install, and transmission of power is precise and stable.
(3) elastic positioning member adopts the structural type of spring and locating stud, structure is simply convenient to implement, can reduce costs while realizing its function, and positioning pin hole is set not only makes locating stud firm to the positioning action between actuation gear and housing, device overall structure also can be made more compact.
(4) unlock component is set to rotate the trip lever installed and also reaches structure and be simply convenient to implement and the object that reduces costs, and make trip lever be designed to " V " shape can to have and better manipulate sense, and increase elastic component push rod excessive stretching in housing under non-parked state can be avoided to impact the running of the mechanisms such as actuation gear.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the parking lock device described in the embodiment of the present invention;
Fig. 2 is the partial enlarged drawing of part A in Fig. 1;
Fig. 3 is the perspective view of the parking lock device described in the embodiment of the present invention;
Fig. 4 is the front view of Fig. 3;
Fig. 5 is the rear view of Fig. 3;
Description of reference numerals:
1-housing, 2-fixed base, 3-parking gear, 4-actuation gear, 5-live axle, 6-driven gear, 7-park pawl connecting rod, 8-park pawl, 9-support, 10-engages termination, 11-positioning pin hole, 12-locating stud, 13-positioning hole, 14-spring, 15-push rod, 16-trip lever, 17-mounting plate.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The present invention relates to a kind of parking lock device, as shown in Fig. 1 to Fig. 5, this parking lock device comprises housing 1, and the periphery wall of housing 1 is connected with several fixed base 2, and housing 1 can be installed on not shown speed changer via fixed base 2.The parking gear 3 that one is installed on not shown power transmission shaft one end is equipped with in housing 1, by carrying out locking to parking gear 3 in housing 1, thus the locking namely realized by the locking to power transmission shaft moving in speed changer, locked with what finally realize wheel.
The parking lock device of the present embodiment also comprise be arranged at housing 1 place when parking to carry out parking gear 3 engaging locking lockable mechanism, and the release mechanism of locating stuck elastic locating mechanism between lockable mechanism and housing 1 and the location of lockable mechanism on housing 1 being removed can be made.This lockable mechanism comprises rotating via live axle 5 to be located in housing 1 and the actuation gear 4 be in transmission connection with the driving mechanism be located at outside housing 1, and the park pawl 8 be arranged in housing 1 is rotated via transmission connecting mechanism, park pawl 8 is under the rotation of actuation gear 4 is ordered about, can rotate around himself rotation axis, locking to realize the engagement of parking gear 3.
The not shown motor that the driving mechanism be located in the present embodiment outside housing 1 can be and is in transmission connection between actuation gear 4, the clutch end of motor is connected with the live axle 5 taking up actuation gear 4.Transmission connecting mechanism then can comprise the park pawl connecting rod 7 rotating and be located in housing 1 as shown in fig. 1, and being installed on one end of park pawl connecting rod 7 and the driven gear 6 be meshed with actuation gear 4, park pawl 8 is installed on the other end of park pawl connecting rod 7 relative to driven gear 6.One end of park pawl connecting rod 7 is that rotation is installed on housing 1, and the other end of park pawl connecting rod 7 is then for rotation is installed on the support 9 be arranged on housing 1 inwall.
For realizing the more firm latch functions of parking gear 3 in the present embodiment, park pawl 8 is set to three that are distributed in parking gear 3 outer circumferential side, certainly except can being set to three, park pawl 8 also can be set to as one, other quantity such as two or four, and now transmission connecting mechanism is also set to the quantity that matches with park pawl 8 accordingly.As illustrated the layout of three park pawl 8 in housing 1 in Fig. 3 and Fig. 4, now support 9 is also for being distributed in three on housing 1 inwall, takes up to carry out rotation to each park pawl connecting rod 7.Three park pawl 8 are also along identical direction, and the clockwise direction as shown in Fig. 3 or Fig. 4 is installed on each self-corresponding park pawl connecting rod 7.The other end that park pawl 8 connects relative to itself and park pawl connecting rod 7 is provided with one and engages termination 10, engagement termination 10 is outwardly along the direction pointing to parking gear 3, can can be meshed with the tooth on parking gear 3 when park pawl 8 is rotated with park pawl connecting rod 7, thus it is locking to realize between park pawl 8 and parking gear.
Elastic locating mechanism in the present embodiment comprises the end face being right against actuation gear 4 and is located at positioning hole 13 on housing 1, and being connected at the elastic positioning member that actuation gear 4 is close to the end of positioning hole 13 side, positioning hole 13 is positioned on rotation path when elastic positioning member rotates with actuation gear 4.And elastic positioning member rotate with actuation gear 4 and relative with positioning hole 13 time, can have and stretch in positioning hole 13 under himself elasticity, the motion being positioned on housing 1 to make actuation gear 4.As shown in Figures 1 and 2, for making elastic positioning member firm to the positioning action between actuation gear 4 and housing 1, and make the overall structure of this parking lock device more compact, also on the end face of positioning hole 13 side, be provided with a positioning pin hole 11 at actuation gear 4 in the present embodiment, namely elastic positioning member is arranged in this positioning pin hole 11.
The present embodiment Elastic positioning component comprises the spring 14 be connected in positioning pin hole 11, and connects the free end being arranged on spring 14, and also namely spring 14 is close to the locating stud 12 of the exit end of positioning pin hole 11.Certainly for making locating stud 12 can have longer length in positioning pin hole 11, with when locating stud 12 is stretched in positioning hole 13 by spring 14 pushing tow, can make there is larger coupling stiffness between locating stud 12 and positioning pin hole 11, the one end that also can be positioned at positioning pin hole 11 at locating stud 12 in the present embodiment arranges a shrinkage pool, now the free end of spring 14 namely can be connected in locating stud 12 shrinkage pool in.
Release mechanism in the present embodiment comprises the unlock component be located at outside housing 1, and be articulated with this unlock component one end and be actively located in the push rod 15 in positioning hole 13, and push rod 15 has the elastic positioning member to stretching in positioning hole 13 under the driving of unlock component, also namely locating stud 12 carries out pushing tow, to make locating stud 12 by the motion of deviating from positioning hole 13.As shown in figure 1 and figure 5, described unlock component comprises the mounting plate 17 be located in housing 1 end face outside, and rotates the trip lever 16 be arranged on mounting plate 17, and namely push rod 15 is articulated with one end of trip lever 16.
Mounting plate 17 can be and be set to two pieces positioned opposite as shown in Fig. 1 or Fig. 5, certainly it also can be set to one piece, trip lever 16 is for be arranged between two pieces of mounting plates 17 via a rotating shaft, thus when ordering about the rotation mounting points of trip lever 16 around it and rotating, the push rod 15 being articulated with its one end can be driven to have moving up and down in positioning hole 13.In the present embodiment, trip lever 16 can be and is set to V-shaped structure as shown in Figure 1, and now trip lever 16 is installed between two pieces of mounting plates 17 via the rotation of its bending place.The trip lever 16 of " V " font can have and better manipulates sense, and be also convenient to push rod 15 has and larger stretch into distance in positioning hole 13.Certainly except being " V " character form structure, trip lever 16 also can be the curved bar of straight line pole or other type.And in order to make push rod 15 can realize smooth return stretching into after in positioning hole 13, in the present embodiment, also between push rod 15 and housing 1, or an elastic component can be set between trip lever 16 and housing 1.This elastic component can be not shown suit and is connected on push rod 15, and the elastic component of one end overhead on housing 1 is as stage clip, or also can be the elastic component be arranged between the wherein side of trip lever 16 and housing 1, as stage clip or extension spring etc.
This parking lock device in use, when after parking, electric motor starting drives actuation gear 4 to rotate via live axle 5, the rotation of actuation gear 4 is transmitted via driven gear 6 and park pawl connecting rod 7, rotate by the clockwise direction shown in Fig. 3 finally to order about park pawl 8, when the rotation of park pawl 8 makes the engagement termination 10 of its one end be meshed with tooth on parking gear 3, locking to parking gear 3 of lockable mechanism can be realized.And engage between park pawl 8 with parking gear 3 locking while, the rotation of actuation gear 4 also makes positioning pin hole 11 relative with positioning hole 13, namely the locating stud 12 be now arranged in positioning pin hole 11 stretches in positioning hole 13 under action from the spring 14, also realize thus stuck on housing 1 of actuation gear 4, and it is stuck to realize between parking gear 3 and housing 1 via the transmission of driven gear 6, park pawl connecting rod 7 and park pawl 8.
When parked state removed by needs, manually can lift one end that trip lever 16 is not connected with push rod 15, the rotation of trip lever 16 is ordered about push rod 15 and is moved in positioning hole 13, push rod 15 just can promote the locating stud 12 stretched in positioning hole 13 and moves to the direction of housing 1 inside thus, when continuing to move in positioning hole 13 when push rod 15 and deviate from making locating stud 12 by positioning hole 13, the releasing to state stuck between actuation gear 4 and housing 1 can be realized, at this moment motor can drive actuation gear 4 to rotate backward again, and finally order about park pawl 8 again and rotate backward, realize engagement termination 10 in park pawl 8 thus locking with engaging between parking gear 3, also the free state of the power transmission shaft be connected with parking gear 3 has namely been recovered.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a parking lock device, comprises housing (1), is equipped with the parking gear (3) being installed on power transmission shaft one end, characterized by further comprising in described housing (1):
Lockable mechanism, described lockable mechanism comprise rotation to be located in described housing (1) and with the actuation gear (4) be located at described housing (1) driving mechanism outward and be in transmission connection, and the park pawl (8) be arranged in described housing (1) is rotated via transmission connecting mechanism, described park pawl (8) is under the rotation of described actuation gear (4) is ordered about, have and rotate around himself rotation axis, to carry out described parking gear (3) engaging locking motion;
Elastic locating mechanism, described elastic locating mechanism comprises the elastic positioning member being connected at described actuation gear (4) end, and the positioning hole (13) be opened in along the rotation path of described elastic positioning member on described housing (1), when described elastic positioning member is relative with described positioning hole (13) with described actuation gear (4) rotation, have and stretch in described positioning hole (13) under himself elasticity, the motion being positioned on described housing (1) to make described actuation gear (4);
Release mechanism, described release mechanism comprises the unlock component being located at described housing (1) outside, and be articulated with described unlock component one end and be actively located in the push rod (15) in described positioning hole (13), the elastic positioning member that described push rod (15) has stretching in described positioning hole (13) under the driving of unlock component carries out pushing tow, to make described elastic positioning member by the motion of deviating from described positioning hole (13).
2. parking lock device according to claim 1, is characterized in that: described driving mechanism is motor.
3. parking lock device according to claim 1, is characterized in that: described park pawl (8) is for being distributed in three of described parking gear (3) outer circumferential side.
4. parking lock device according to claim 3, it is characterized in that: described transmission connecting mechanism comprises rotation and is arranged at park pawl connecting rod (7) in described housing (1), and be installed on one end of described park pawl connecting rod (7) and engage the driven gear (6) be connected with described actuation gear (4), described park pawl (8) is installed on the other end of described park pawl connecting rod (7).
5. parking lock device according to claim 1, it is characterized in that: the end face being close to described positioning hole (13) at described actuation gear (4) is provided with positioning pin hole (11), and described elastic positioning member activity is located in described positioning pin hole (11).
6. parking lock device according to claim 5, is characterized in that: described elastic positioning member comprises the spring (14) be connected in described positioning pin hole (11), and is connected at the locating stud (12) of described spring (14) free end.
7. parking lock device according to claim 6, it is characterized in that: the one end being arranged in described positioning pin hole (11) at described locating stud (12) offers shrinkage pool, the free end of described spring (14) is connected in the shrinkage pool of described locating stud (12).
8. parking lock device according to claim 1, it is characterized in that: described unlock component comprises the mounting plate (17) be located in described housing (1) end face outside, and rotating the trip lever (16) be arranged on described mounting plate (17), described push rod (15) is articulated with one end of described trip lever (16).
9. parking lock device according to claim 8, is characterized in that: described trip lever (16) is V-shaped, and rotation is located on described mounting plate (17) in its bending place.
10. parking lock device according to claim 8 or claim 9, it is characterized in that: be connected with when described push rod (15) carries out pushing tow to the elastic positioning member stretched in described positioning hole (13) between described push rod (15) and housing (1) or between described unlock component and housing (1), active force is applied, to make the elastic component of described push rod (15) return to described push rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410516911.XA CN104455401B (en) | 2014-09-30 | 2014-09-30 | Parking locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410516911.XA CN104455401B (en) | 2014-09-30 | 2014-09-30 | Parking locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455401A true CN104455401A (en) | 2015-03-25 |
| CN104455401B CN104455401B (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410516911.XA Active CN104455401B (en) | 2014-09-30 | 2014-09-30 | Parking locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455401B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107120431A (en) * | 2016-02-24 | 2017-09-01 | 上海汽车集团股份有限公司 | Halting mechanism, gearbox and automobile |
| CN108506472A (en) * | 2018-03-23 | 2018-09-07 | 浙江合众新能源汽车有限公司 | P grades of control systems of pure electric automobile |
| CN109751412A (en) * | 2017-11-02 | 2019-05-14 | 广东德昌电机有限公司 | Electric actuator |
| CN110525205A (en) * | 2019-09-09 | 2019-12-03 | 广东工业大学 | A kind of car ramp starting auxiliary system |
| CN111361664A (en) * | 2020-04-26 | 2020-07-03 | 王俊 | Conveying type parking device with high applicability |
| CN112135757A (en) * | 2018-04-26 | 2020-12-25 | Gkn汽车有限公司 | Parking lock unit and drive assembly with such a parking lock unit |
| CN113634976A (en) * | 2021-10-17 | 2021-11-12 | 南通宝雪冷冻设备有限公司 | Spiral sprocket piece assembly device for quick-freezer |
| CN115199748A (en) * | 2022-07-11 | 2022-10-18 | 东风汽车集团股份有限公司 | Hydraulic control parking mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107120431A (en) * | 2016-02-24 | 2017-09-01 | 上海汽车集团股份有限公司 | Halting mechanism, gearbox and automobile |
| CN107120431B (en) * | 2016-02-24 | 2018-12-28 | 上海汽车集团股份有限公司 | Halting mechanism, gearbox and automobile |
| CN109751412A (en) * | 2017-11-02 | 2019-05-14 | 广东德昌电机有限公司 | Electric actuator |
| CN108506472A (en) * | 2018-03-23 | 2018-09-07 | 浙江合众新能源汽车有限公司 | P grades of control systems of pure electric automobile |
| CN112135757A (en) * | 2018-04-26 | 2020-12-25 | Gkn汽车有限公司 | Parking lock unit and drive assembly with such a parking lock unit |
| CN110525205A (en) * | 2019-09-09 | 2019-12-03 | 广东工业大学 | A kind of car ramp starting auxiliary system |
| CN111361664A (en) * | 2020-04-26 | 2020-07-03 | 王俊 | Conveying type parking device with high applicability |
| CN113634976A (en) * | 2021-10-17 | 2021-11-12 | 南通宝雪冷冻设备有限公司 | Spiral sprocket piece assembly device for quick-freezer |
| CN115199748A (en) * | 2022-07-11 | 2022-10-18 | 东风汽车集团股份有限公司 | Hydraulic control parking mechanism |
| CN115199748B (en) * | 2022-07-11 | 2023-09-05 | 东风汽车集团股份有限公司 | Hydraulic control parking mechanism |
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| Publication number | Publication date |
|---|---|
| CN104455401B (en) | 2017-01-18 |
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