CN107956869A - Actuating system for the lock that stops - Google Patents
Actuating system for the lock that stops Download PDFInfo
- Publication number
- CN107956869A CN107956869A CN201710968323.3A CN201710968323A CN107956869A CN 107956869 A CN107956869 A CN 107956869A CN 201710968323 A CN201710968323 A CN 201710968323A CN 107956869 A CN107956869 A CN 107956869A
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- Prior art keywords
- actuator
- parking lock
- axis
- cam lever
- spring
- Prior art date
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- 238000010276 construction Methods 0.000 claims abstract description 46
- 238000000926 separation method Methods 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses the actuating system for the lock that stops.Actuating system includes actuator (20), spring-loaded locking device and parking lock operating mechanism.It can be made while actuator (20) is displaced to actuator joint construction from actuator separation structure according to the actuating system (10) of the disclosure, be optionally sequestered cam lever (30) to reach parking lock joint construction.There is time delay between reaching parking lock joint construction and reaching actuator bonding station.
Description
Technical field
The present invention relates to the field of the parking locking device of vehicle.Especially, the present invention relates to parking lock in dynamic vehicle feelings
Effective operation under condition.
Background technology
Parking lock is set in the motor vehicle to prevent motor vehicles from being moved in motor vehicles parked state.Parking lock is logical
Crossing prevents vehicle wheel rotation and vehicle is maintained in parked state.To allow vehicle movement, it is necessary to which parking lock is transformed into separation
State.
In general, parking lock is activated by actuator to change parking lock between joint construction and separation structure.Parking lock bag
Include parking gear, pawl and spring loads cam.Actuator activation spring loads cam is pawl to be operatively engaged to stop
Skiving wheel and by pawl from parking gear separate.When pawl is engaged with parking gear, parking lock is in joint construction.
In joint construction, pawl prevents gear from rotating by the positive connection between gear and surrounding housing.On the other hand, when pawl not with
During indented joint in parking gear, parking lock is in separation structure.The spring force acted on cam is configured to, if do not had
There is extra actuating power to act in system, then usually parking lock is maintained in joint construction.When being activated by actuator, stop
Lock is configured to resist spring force by means of auxiliary power to be moved to separation structure.
The actuator of parking lock can be hydraulically actuated.In this case, due to being normally used for vehicle hydraulic system
The viscous effect of hydraulic fluid in system, the actuating for the lock that stops are delayed by or limit.This cause shutdown system from engagement state to
The movement of discrete state is delayed by.The delay can cause the unfavorable abrasion of mechanical part and from discrete state to engagement state
Unobvious transition.
Therefore, it is necessary to make the machine that parking lock system accelerates from parking interlocking conjunction state to the transition of parking lock discrete state
Structure.
Subject invention
It is contemplated by the invention that realize at least one in following target：
It is an object of the present invention to especially improve parking interlocking sum velocity under cold conditions.
It is a further object of this invention to be limited in the operating process of parking lock to produce between pawl and parking lock gear
Sound power (rattleforce) to parking lock actuator transmission；And
The also target of the present invention is to provide the obvious transition from discrete state to engagement state.
When being combined the specification for reading the present invention with attached drawing, other targets of the invention will be apparent.Herein
The attached drawing of middle offer is merely illustrative and is not intended to be limited to the scope of the present invention and boundary.
The content of the invention
According to the present invention, there is provided the actuating system for the lock that stops.Actuating system includes actuator, spring-loaded locks
Device, parking lock operating mechanism.
Actuator can be shifted through multiple centre positions between actuator bonding station and actuator separation point position.Bullet
Spring loading type locking device can be switched by the actuator between parking lock joint construction and parking lock separation structure.Stop
Lock operating mechanism is operably connected the actuator and the locking device.Parking lock operating mechanism includes axis, actuator
Input element and cam lever.
Axis limit curved connecting trenches.With the actuator position is separated in the actuator bonding station and the actuator
Displacement between putting corresponds to, and axis functionally cooperates in axial rotatable construction.Arcuate extensions are constructed on the shaft
To limit curved connecting trenches using the circumference of the axis.Axis is spring loaded by axis spring.Axis spring apply with by stopping
The proportional opposite spring force of power that the actuator between lock separation structure and parking lock joint construction applies.Remote
The end of the actuator input element, axis are added by first connecting rod part and second connecting rod part and the spring of the locking device
Carry cam cooperation.First connecting rod part cooperates with the axis and in another end and the second connecting rod at one end
Part cooperates.Second connecting rod part is from the remote end in the end to cooperate with the first connecting rod part and the spring loads cam
Cooperation.First connecting rod part and the second connecting rod part can correspond to the rotation direction of the axis in parking lock joint construction and stop
Relatively shifted between lock separation structure.First connecting rod part and the second connecting rod part are locked in institute by the axis spring
State in parking lock joint construction and the parking lock separation structure.First connecting rod part and the second connecting rod part pass through the actuating
Device is shifted between the parking lock joint construction and the parking lock separation structure.
Displacement of the actuator input element to axis transmission actuator.Cam lever is pivotably mounted on actuator input element
On.Actuator is at least one in hydraulic actuator, electric actuator and electro-hydraulic actuator.
Cam lever can be shifted to be selectively connected and detaching cam bar relative to curved connecting trenches.Cam lever with it is right
The load of frictional force between cam lever described in Ying Yu and the arcuate extensions is associated.
Spring loads driven member and the cam lever constant contact.Spring loads driven member be configured to the load
On opposite direction on the cam lever applying power.
The cam lever can make the parking lock joint construction in institute relative to the selection separation of the curved connecting trenches
State at least one middle position.Have between reaching the parking lock joint construction and reaching the actuator bonding station
Time delay.
Brief description of the drawings
The parking lock system of the present invention will be described relative to attached drawing now, wherein：
Fig. 1 illustrates the perspective view of the parking lock system with actuator；
Fig. 2 illustrates the profile of the parking lock system shown in Fig. 1, special instructions device, parking lock operating mechanism and
Actuator；
Fig. 3 illustrates perspective view of the parking lock system in joint construction shown in Fig. 2；
Fig. 4 illustrates the profile of the parking lock system as shown in Figure 3 in joint construction；
Fig. 5 illustrates perspective view of the parking lock system in separation structure shown in Fig. 2；
Fig. 6 illustrates the profile of the parking lock system as shown in Figure 5 in separation structure；
Fig. 7 illustrates the profile of the parking lock in joint construction at zero center position；And
Fig. 8 to Figure 10 illustrates displacement of the parking lock operating mechanism between separation structure and joint construction.
Embodiment herein and its various features and favourable are described with reference to the non-limiting example that is described below
Details.The description of known elements and treatment technology is omitted not make redundantly embodiment herein obscure.
Embodiment
The park lock assembly with hydraulic operation actuator being currently available is direct by solid link member and actuator
Ground engages.Locking member is displaced to behaviour of the time depending on actuator of joint construction from the separation structure with parking lock gear
Make speed.Under cold conditions, the viscosity of hydraulic oil increases and therefore reduces the mobility of hydraulic oil.Thus, in cold bar
Under part, the response time increase of the actuator of hydraulic actuation.This increase is used to switch parking lock actuating system from separation structure
To the time of joint construction.This causes safety problem under cold conditions.
Fig. 1 illustrates the parking for being used for vehicle parking lock usually represented according to the present invention by numeral 10 to lock actuating system
Perspective view.Fig. 2 illustrates the profile of parking lock actuating system 10.Parking lock actuating system 10 includes locking device 12, causes
Dynamic device 20 and parking lock operating mechanism 22.Actuator 20 is hydraulic actuator, electric actuator or electro-hydraulic actuator.Locking
Device 12 can be shifted through multiple centre positions between parking lock joint construction and parking lock separation structure.Locking device 12
Including parking gear 14, locking member 16 and spring loads cam 18.
Locking member 16 can joint construction as shown in Figure 3 and Figure 4 and separation structure as shown in Figure 5 and Figure 6 it
Between shift.Shifted by locking member 16 from the engagement of the gear with being limited on parking lock gear 14 to realize as shown in Figure 1
Parking lock actuating system 10 joint construction.Moved by locking member 16 from away from the gear being limited on parking lock gear 14
The separation structure of actuating system 10 is locked to realize to stop in position.Spring loads cam 18 is configured to keep locking member 16 to be bonded on
Between the tooth of parking lock gear 14.Cam 18 is loaded with shift spring by using the power resistance spring force applied by actuator 20
To realize separation structure.Thus, when release causes parking to lock the power for the actuator 20 that actuating system 10 is located in separation structure,
Spring loads cam 18 be intended to make locking member 16 enter with the joint construction of the tooth of parking lock gear 14.
Parking lock operating mechanism 22 is operatively coupled between locking device 12 and actuator 20, this will be opposite below
It is described in Fig. 4,6 and 7 to 10, unless otherwise described.Parking lock operating mechanism 22 includes actuator input shaft 24, axis 28, convex
Take turns bar 30 and spring loads driven member 31.Parking lock operating mechanism 22 is installed in housing 23.Actuator input element 24 exists
Cooperated at first end 24a by actuator rod 26 with actuator 20.Actuator includes actuator reset spring 20b for carrying
Engaged for the spring force in addition to the effect of hydraulic fluid with being displaced to actuator from actuator separation point position in actuator rod 26
It is easy to the displacement of actuator rod during position.Actuator input element 24 is at the second end 24b with axis 28 in axis 28
Connected at center.Axis 28 is biased to axis 28 being configured to back to parking lock joint construction by axis spring (not shown).Cause
Dynamic device input element 24 is configured to the linear movement of actuator rod 26 being converted into the rotational motion of axis 28.Axis 28 have along
Longitudinal axis X of the center generally normal to the operative axis Y of actuator rod 26.The second end 20b limits cam lock profile
20c.Arcuate extensions 28a is tangential to the circumference extension of axis 28.Curved connecting trenches 28b is by arcuate extensions 28a and axis 28
Circumference limits.Curved connecting trenches 28b extends along at least a portion of the length of axis 28.Cam lever 30 is pivotably mounted on
On axis 28.The pivotal mounting point of cam lever 30 is used as fulcrum 32.Cam lever 30 can be rotated along pivot axis Z around fulcrum 32.
Pivot axis Z is parallel to longitudinal axis X and deviates preset distance.
In the joint construction and separation structure of parking lock actuating system 10, cam lever 30 is in curved connecting trenches 28a
Functionally cooperate with arcuate extensions 28a.In the separation structure of parking lock actuating system 10, as shown in fig. 6, arcuate extensions
Contact point between 28a and cam lever 30 is close to actuator 20.On the other hand, in the joint construction of parking lock actuating system 10
In, as shown in figure 4, the contact point between arcuate extensions 28a and cam lever 30 is away from actuator 20.The contact arc of cam lever 30
The end of shape extension 28a is the load end of cam lever 30.Load on the load end of cam lever 30 is by acting on arc
The frictional force on contact point between extension 28a and cam lever 30 causes.
The spring loads driven member 31 biased by spring 31a is installed on housing 23 so that spring loads driven member 31 exists
Cam lever 30 is contacted between the joint construction and separation structure of parking lock actuating system 10.Spring loads driven member 31 is in cam lever
Applying power on 30.The power is consequently exerted on cam lever 30 to overcome the power of the load on the load end for acting on cam lever 30.
Further, a pair of links part 34 and 36 is arranged between the spring loads cam 18 of locking device 12 and axis 28.
The pivot point coordination with one another to link member 34 and 36 at one end, can relatively shift relative to each other.Even
Rod piece 34 and 36 respectively cooperates in the end away from pivotal point 33 with axis 28 and spring loads cam 18.
During actuator 20 advances to separation point position as shown in Figure 6 from bonding station as shown in Figure 4, actuating
20 rotational actuator input element 24 of device and therefore axis 28 are rotated also around longitudinal axis X.Because cam lever 30 is also mounted at
On actuator input element 24, therefore the movement of actuator 20 causes the displacement of cam lever 30 and degree/number of degrees of axis 28
(degree) identical degree/number of degrees.In the case where cam lever 30 moves, spring loads driven member 31 continues to contact cam lever
30 and apply equal to spring loads driven member 31 spring 31a spring force power.
In the separation structure of parking lock actuating system 10, as shown in fig. 6, fulcrum 32 is located at by spring loads driven member 31
The power that is applied on cam lever 30 and led due to the frictional force between arcuate extensions 28a and cam lever 30 on cam lever 30
Between the load of cause.Thus, cam lever 30 is used as 1 grade of control stick in the separation structure of parking lock.It is applied on cam lever 30
Power on the direction opposite with acting on the load on cam lever 30.When actuator 20 reaches separation point position, arc extension
Contact between portion 28a and cam lever 30 realizes that minimum threshold loads.Simultaneously, as shown in fig. 7, link member 34 and 36 is moved into
Linear structure, and the center of pivotal point 33 and axis 28 is straight.This is the zero center position of parking lock actuating system 10
(zero-center position) or offset (offset) construction.At the position, locking member 16 is from locking device 12
Parking lock gear 14 separates.Parking lock actuating system 10 will remain at zero center position, until parking locking bar (does not show in figure
Go out) bonding station is moved to from separation point position by operator, so as to cause actuator 20 to be advanced towards bonding station.
When locking bar (not shown) of stopping is moved to bonding station by operator from separation point position, cause actuator 20
Moved towards bonding station.The bonding station of actuator 20 is in the direction with reaching in the separation structure of parking lock actuating system 10
On opposite direction.Parking lock actuating system 10 joint construction start when, with actuator 20 towards its bonding station advance,
Due to the displacement of actuator input element 24 and the axis 28 as caused by actuator input element 24 rotation, arcuate extensions 28a
Respectively caused to be moved away from each other in the opposite direction with cam lever 30.Thus, following point is reached, at the point,
Contact is lost between arcuate extensions 28a and cam lever 30, as shown in Figure 8.Connected although Fig. 8 illustrates cam lever 30 from arc
Connect in groove 28b and discharge, but it will be apparent to one skilled in the art that be even located at curved connecting trenches 28b in cam lever 30
When middle, the contact between arcuate extensions 28a and cam lever 30 may also lose.Bullet of the situation in spring loads driven member 31
Spring force occurs when overcoming the frictional force between arcuate extensions 28a and cam lever 30.Therefore, the load on cam lever 30 is acted on
It is zero.Simultaneously, profile transverse shifting of the spring loads driven member 31 along cam lever 30 so that by spring loads driven member 31
The load end of point towards cam lever 30 where the power of application moves.Because the load at the load end of cam lever 30 is zero,
Therefore led by the power of the movement offer for being transferred to axis 28 and cam lever 30 of spring loads driven member 31 and actuator rod 26
Cam lever 30 is caused to be moved to outside curved connecting trenches 28b.Since the contact between arcuate extensions 28a and cam lever 30 is reduced
(loss), so axis 28 is rotated by the movement of actuator 20 towards bonding station.This causes parking lock actuating system 10 to overcome
Zero center position, as shown in fig. 7, so as to cause the relative motion between link member 34 and 36 around pivotal point 33.Fig. 9 figures
Show in the movement displacement by actuator 20 and before advancing towards actuator bonding station as shown in Figure 10, arcuate extensions
The centre position of 28a and cam lever 30.At this point, continue in actuator 20 towards while bonding station transverse movement, due to
Spring loads cam 18 by locking member 16 be maintained at the tendency in the joint construction of the parking lock gear of locking device 12 14,
Locking member 16 is engaged with the parking lock gear 14 of locking device 12, as shown in Figure 3.Thus, although locking device 12 has moved
The movement for moving joint construction and vehicle is prohibited, and actuator 20 is continued to towards bonding station transverse movement.Therefore, locking
The joint construction and actuator 20 of device 12 between the movement of its bonding station have delay.When actuator 20 is moved to engagement
During position, cam lever 30 is moved in curved connecting trenches 28b and engaged with arcuate extensions 28a.Thus, due to cam lever
Load is applied at the load end of cam lever 30 caused by frictional force between 30 and arcuate extensions 28a.In the position
Put place, the applying power on cam lever 30 of spring loads driven member 31 so that power and the same side for being supported on cam lever 30.Thus,
Cam lever 30 is used as 2 grades of control sticks.
Thus, parking lock operating mechanism 22 separates locking device 12 from actuator 20.Therefore, in engaging process, spring
Loading cam 18 is separated with actuator 20, thus, cause spring loads cam 18 locking member 16 is entered and parking lock gear
In 14 joint construction.Meanwhile actuator 20 is moved to joint construction.When reaching joint construction, actuator 20 will lock member
Part 16 is locked in in the joint construction of parking lock gear 14, locking until parking and being activated by parking locking bar to shift component from structure
Make.
Technological progress
The present invention has several technological progresses, including but is not only restricted to the realization of parking latch mechanism：
Improve parking lock performance under cold conditions；
It is limited in what the sound power produced between pawl and parking lock gear was locked to parking in the operating process of parking lock
The transmission of actuator；And
Improve the joint efficiency of parking lock.
Although describing aforementioned specification relative at least one embodiment, can the disclosure spirit and
In the range of further change the present invention.The application it is intended that covering the present invention using its basic principle any change,
Using or modification.Further, the application be intended to be covered among the known or customary practice in disclosure fields from
The deviation of the disclosure.
Claims (10)
1. a kind of be used for the actuating system (10) locked of stopping, the actuating system (10) includes：
Actuator (20), the actuator can be shifted through multiple between actuator bonding station and actuator separation point position
Centre position；
Spring-loaded locking device (12), the spring-loaded locking device can be stopped by the actuator (20)
Switch between lock joint construction and parking lock separation structure；With
Parking lock operating mechanism (22), the parking lock operating mechanism are operably connected the actuator (20) and the locking
Device (12), it is characterised in that：The parking lock operating mechanism includes：
Axis (28), the axis limit curved connecting trenches (28b)；
Actuator input element (24), the actuator input element transmit the position of the actuator (20) to the axis (28)
Move；With
Cam lever (30), the cam lever are pivotably mounted on actuator input element (24), cam lever (30) energy
It is enough to shift to be selectively connected and separate the cam lever (30) relative to the curved connecting trenches (28b)；
Wherein, the cam lever (30) can be described relative to described be optionally sequestered of the curved connecting trenches (28b)
At least one middle position realizes the parking lock joint construction, is reaching the parking lock joint construction and is reaching the cause
There is time delay between dynamic device bonding station.
2. actuating system (10) according to claim 1, wherein：
It is corresponding with displacement of the actuator (20) between the actuator bonding station and the actuator separation point position, institute
State axis (28) and functionally cooperated with axial rotatable construction.
3. actuating system (10) according to claim 1, wherein：
Arcuate extensions (28a) are built on the axis (28) to be connected with limiting the arc together with the circumference of the axis (28)
Connect groove (28b).
4. actuating system (10) according to claim 1, wherein：
The cam lever (30) and bearing corresponding to the frictional force between the cam lever (30) and the arcuate extensions (28a)
Carry associated.
5. actuating system (10) according to claim 1, wherein：
Spring-loaded driven member (31) and the cam lever (30) constant contact, the spring-loaded driven member (31) is by structure
Cause on the direction opposite with the load applying power on the cam lever (30).
6. actuating system (10) according to claim 1, wherein：
The axis (28) is spring loaded by axis spring, and the axis spring applies with being locked by locking separation structure in parking and stopping
The proportional opposite spring force of power that the actuator (20) between joint construction applies.
7. actuating system (10) according to claim 1, wherein：
The axis (28) is connected in the end away from the actuator input element (24) by first connecting rod part (34) and second
Rod piece (36) cooperates with the spring-loaded cam (18) of the locking device (12), and the first connecting rod part (34) is at an end
Cooperate with the axis (28) at portion and cooperate in another end with the second connecting rod part (36), the second connecting rod part
(36) cooperate in the end of the remote end to cooperate with the first connecting rod part (34) with the spring-loaded cam (18).
8. actuating system (10) according to claim 7, wherein：
The rotation direction that the first connecting rod part (34) and the second connecting rod part (36) can correspond to the axis (28) is being stopped
Relatively shifted between lock joint construction and parking lock separation structure, the first connecting rod part (34) and the second connecting rod part
(36) it is locked in by the axis spring in the parking lock joint construction and the parking lock separation structure.
9. actuating system (10) according to claim 7, wherein：
The first connecting rod part (34) and the second connecting rod part (36) are by the actuator (20) by the parking interlocking
Close and shifted between construction and the parking lock separation structure.
10. actuating system (10) according to claim 1, wherein：
Actuator (20) is at least one of hydraulic actuator, electric actuator and electro-hydraulic actuator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN201621035460 | 2016-10-17 | ||
| IN201621035460 | 2016-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107956869A true CN107956869A (en) | 2018-04-24 |
| CN107956869B CN107956869B (en) | 2021-02-12 |
Family
ID=61963503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710968323.3A Active CN107956869B (en) | 2016-10-17 | 2017-10-17 | Actuating system for parking lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107956869B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041128C1 (en) * | 1990-12-21 | 1992-04-02 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Gearchange mechanism on gearbox - incorporates locking element to hold lever and prevent jumping out of gear |
| US20140346004A1 (en) * | 2013-05-24 | 2014-11-27 | GM Global Technology Operations LLC | Transmission parking pawl actuation assembly |
| CN104976344A (en) * | 2014-04-01 | 2015-10-14 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Parking Lock System For A Motor Vehicle Transmission And Motor Vehicle Transmission Using The Same |
| WO2016045867A1 (en) * | 2014-09-22 | 2016-03-31 | Zf Friedrichshafen Ag | Parking lock device for a motor vehicle |
-
2017
- 2017-10-17 CN CN201710968323.3A patent/CN107956869B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041128C1 (en) * | 1990-12-21 | 1992-04-02 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Gearchange mechanism on gearbox - incorporates locking element to hold lever and prevent jumping out of gear |
| US20140346004A1 (en) * | 2013-05-24 | 2014-11-27 | GM Global Technology Operations LLC | Transmission parking pawl actuation assembly |
| CN104976344A (en) * | 2014-04-01 | 2015-10-14 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Parking Lock System For A Motor Vehicle Transmission And Motor Vehicle Transmission Using The Same |
| WO2016045867A1 (en) * | 2014-09-22 | 2016-03-31 | Zf Friedrichshafen Ag | Parking lock device for a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107956869B (en) | 2021-02-12 |
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