CN108087545B - Parking and braking mechanism, parking braking system, automatic gear-box and automobile - Google Patents
Parking and braking mechanism, parking braking system, automatic gear-box and automobile Download PDFInfo
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- CN108087545B CN108087545B CN201611031869.8A CN201611031869A CN108087545B CN 108087545 B CN108087545 B CN 108087545B CN 201611031869 A CN201611031869 A CN 201611031869A CN 108087545 B CN108087545 B CN 108087545B
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- Prior art keywords
- parking
- pressing
- sliding block
- actuator
- rocker arm
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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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- 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
- F16H63/3433—Details of latch mechanisms, e.g. for keeping pawls out of engagement
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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
- F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
- F16H63/3466—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire using electric motors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
A kind of parking and braking mechanism, parking braking system, automatic gear-box and automobile, wherein parking and braking mechanism is for locking spreadet spreadet wheel, comprising: pawl and parking sliding block, the parking sliding block can push the pawl to move, and make the pawl locking spreadet spreadet wheel；Movable pressing, the pressing can move to lock position and unlocked position, and when the pressing is located at the lock position, the pressing being capable of parking sliding block described in clamping, when the pressing is located at the unlocked position, the pressing releases the clamping to the parking sliding block.Therefore, when needing to unlock spreadet spreadet wheel, pressing is set to move to unlocked position, pressing releases the clamping to parking sliding block, at this time, as long as applying a lesser active force to parking sliding block, just parking sliding block can be made mutually to separate with pawl, completes unlock, thus, the driving motor with relatively small torque is only needed, to reduce cost.
Description
Technical field
The present invention relates to automobile technical fields, and in particular to a kind of parking and braking mechanism, parking braking system, fluid drive
Case and automobile.
Background technique
In automatic transmission vehicle, the gear of gearbox is divided into P grades, R grades, N grades, D grades etc..Wherein P grades are parking shift, corresponding
The parking braking system of transmission internal；Its role is to enable automatic catch vehicle as manual vehicle, can pass through
Gear limits the movement of vehicle.
It referring to Fig.1, is parking braking system structure chart in the prior art, parking braking system includes parking and braking mechanism
90, spreadet spreadet wheel 98 and driving motor 99.Wherein, parking and braking mechanism 90 includes pawl 91 and rocker arm 92, and pawl 91 can be transported
It moves to locking spreadet spreadet wheel 98；Driving motor 99 can drive rocker arm 92, rotate rocker arm 92 around shaft 92a.
It is fixed with parking pull rod 93 on rocker arm 92, when rocker arm 92 is rotated around shaft 92a, is able to drive parking
Pull rod 93 moves, and makes parking pull rod 93 close to pawl 91 or far from pawl 91, is arranged with parking sliding block 94 on parking pull rod 93.
When needing to realize parking braking, driving motor 99 drives rocker arm 92 to rotate, and rocker arm 92 pushes parking pull rod 93 to lean on
Nearly pawl 91, parking pull rod 93 drive parking sliding block 94 to move towards pawl 91, so that parking sliding block 94 is contacted pawl 91 and push
Pawl 91 moves, so that pawl 91 be made to lock spreadet spreadet wheel 98, spreadet spreadet wheel 98 is fixedly attached on the output shaft of gearbox, because
And it can be realized parking braking.Fig. 1 be in the prior art pawl 91 lock spreadet spreadet wheel 98 when state diagram.
In the prior art, parking and braking mechanism 90 further includes pressing 95, and pressing 95 is fixed on mounting plate 96, is made
With being: when realizing parking braking, pressing 95 can clamping parking sliding block 94, preventing parking sliding block 94, surprisingly abjection causes thing
Therefore.
Thus, the active force of 95 clamping parking sliding block 94 of pressing is larger, need to be in parking when needing to unlock spreadet spreadet wheel 98
Apply a biggish active force on sliding block 94, parking sliding block 94 is made mutually to separate realization unlock with pawl 91；It is sliding to be applied to parking
Active force on block 94 derives from driving motor 99, and this requires driving motors 99 to have biggish torque, currently, driving in the market
For the unlock torque of dynamic motor 99 often in 11Nm or so, motor cost is very high.
Summary of the invention
Problems solved by the invention be parking braking system in the prior art when unlocking spreadet spreadet wheel it is necessary to have compared with
The driving motor of high-torque leads to driving motor higher cost.
To solve the above problems, the present invention provides a kind of parking and braking mechanism.Parking and braking mechanism is for locking locking tooth
Wheel, the parking and braking mechanism include: pawl and parking sliding block, and the parking sliding block can push the pawl to move, make institute
State pawl locking spreadet spreadet wheel；Movable pressing, the pressing can move to lock position and unlocked position, when the pressure
Pins position when the lock position, the pressing can parking sliding block described in clamping, when the pressing is located at the unlocked position
When, the pressing releases the clamping to the parking sliding block.
Optionally, the parking and braking mechanism further includes the first mounting plate perpendicular to the pressing, first installation
Plate is equipped with first sliding groove, and first sliding groove plane where the mounting plate extends, and one end setting of the pressing is described the
In one sliding slot, and the lock position, unlocked position can be slid into along the first sliding groove.
Optionally, the parking and braking mechanism further includes the first actuator, and first actuator can drive the pressure
Pin is moved to the lock position.
Optionally, the first mandrel is fixed on first mounting plate, first mandrel, pressing are located at described first
Mounting plate it is ipsilateral；First actuator is arranged on first mandrel, and can rotate around first mandrel, institute
Stating the first actuator has the arcwall face for surrounding first mandrel, and the arcwall face can fit with the pressing, and push away
It moves the pressing and moves to the lock position.
Optionally, the pressing can also be fixed on the lock position by the arcwall face.
Optionally, the first torsional spring is arranged on first mandrel, first torsional spring can drive first driving
Part resets, and rotates first actuator around first mandrel, and the pressing is pushed to move to the lock position.
Optionally, the parking and braking mechanism further includes the second actuator, and second actuator can drive described stay
Vehicle slide block movement enables the parking sliding block that the pawl to be pushed to move.
Optionally, second actuator includes the rotary shaft and fixed setting being fixed on first mounting plate
Rocker arm in the rotary shaft, the rotary shaft can rotate and rocker arm driven to rotate around the rotary shaft；The rocker arm
It is connect with the parking sliding block, the parking slide block movement can be driven.
Optionally, the pressing can also be fixed on the lock position by the arcwall face；The parking and braking mechanism
It further include the connector to extend radially outwardly along first mandrel, the connector is fixed at first actuator
On；The connector has the plane towards the rocker arm, and the rocker arm offsets with the plane；When the rocker arm is around described
When rotary shaft is rotated, the rocker arm can drive the connector to make rotating motion around first mandrel.
Optionally, the rocker arm includes the first rocker arm and the second rocker arm positioned at the rotary shaft two sides；Described first shakes
Arm offsets with the connector, and the connector can be driven to make rotating motion around first mandrel；Second rocker arm
It is connect with the parking sliding block, the parking slide block movement can be driven.
Optionally, second rocker arm is equipped with second sliding slot；The parking and braking mechanism further includes parking pull rod, described
Parking pull rod is arranged in parallel with first mounting plate, and the parking pull rod has the bending part towards first mounting plate,
The bending part is arranged in the second sliding slot, and can slide along the second sliding slot；The parking sliding block is set in described
The periphery of parking pull rod, second rocker arm is by driving the parking pull rod to drive the parking slide block movement.
Optionally, the parking sliding block can axially slide along the parking pull rod；The periphery of the parking pull rod also covers
Equipped with helical spring, one end of the helical spring is fixed to the parking pull rod, and the other end of the helical spring is fixed to
The parking sliding block.
Optionally, third torsional spring is arranged in the rotary shaft, the third torsional spring connects with the parking pull rod；It is described
Third torsional spring can drive the parking pull rod to slide along second sliding slot, make the parking pull rod far from the pawl.
Optionally, the parking and braking mechanism further includes locating part, and the locating part is fixed at first installation
On plate, the locating part has through-hole, and the parking pull rod passes through the through-hole, and the locating part is used for the parking pull rod
Radial deflection during the motion is limited.
Optionally, first actuator includes the first driving motor and the first drive rod, and first drive rod is fixed
The pressing and first driving motor are connected, first driving motor can be by described in first drive rod driving
Pressing is moved to the lock position and unlocked position.
Optionally, second actuator includes the second driving motor and the second drive rod, and second drive rod is fixed
The parking sliding block and second driving motor are connected, second driving motor can be driven by second drive rod
The parking slide block movement.
Optionally, the pressing can also be fixed on the lock position by first actuator；Second driving
Motor can also drive first actuator to rotate around first mandrel, release first actuator to the pressure
Sell the fixation on the lock position.
In order to solve the above technical problems, the present invention also provides a kind of parking braking system, including above-described parking system
Motivation structure.
In order to solve the above technical problems, the present invention also provides a kind of automatic gear-box, including above-described parking braking
System.
In order to solve the above technical problems, the automobile includes above-described fluid drive the present invention also provides a kind of automobile
Case.
Compared with prior art, technical solution of the present invention has the advantage that
The technical program provides a kind of parking and braking mechanism, and including movable pressing, pressing can move to locking position
Set and unlocked position, when pressing is located at lock position, pressing can clamping parking sliding block, when pressing is located at unlocked position,
Pressing releases the clamping to parking sliding block.
Therefore, when needing to lock spreadet spreadet wheel, pressing is made to move to lock position, pressing can clamping parking sliding block,
Prevent parking sliding block from surprisingly deviating to cause the accident；When needing to unlock spreadet spreadet wheel, pressing is made to move to unlocked position, pressing solution
Except the clamping to parking sliding block, as long as at this point, to parking sliding block apply a lesser active force, just can make parking sliding block with
Pawl mutually separates, and completes unlock, that is to say, that as long as driving motor applies a lesser active force and can be realized as unlocking,
Thus, it is only necessary to a driving motor with relatively small torque, to reduce cost.
Detailed description of the invention
Fig. 1 is present invention parking braking system structure chart in the prior art；
Fig. 2 is the parking braking system structure chart (one) of the specific embodiment of the invention；
Fig. 3 is the parking and braking mechanism structural exploded view of the specific embodiment of the invention；
Fig. 4 is the first actuator structure chart of the specific embodiment of the invention；
Fig. 5 is the parking and braking mechanism structure chart (two) of the specific embodiment of the invention；
Fig. 6 is the parking and braking mechanism sectional view of the specific embodiment of the invention；
Structure chart when Fig. 7 is the parking and braking mechanism locking spreadet spreadet wheel of the specific embodiment of the invention；
Fig. 8 is structure chart of the parking and braking mechanism of the specific embodiment of the invention in unlocking process；
Fig. 9 is parking and braking mechanism partial enlarged view shown in Fig. 8；
Structure chart when Figure 10 is the parking and braking mechanism unlock spreadet spreadet wheel of the specific embodiment of the invention；
Figure 11 is the three-dimensional structure diagram when parking and braking mechanism of the specific embodiment of the invention is fixed.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Referring to Fig. 2, parking braking system includes parking and braking mechanism 100, spreadet spreadet wheel 200 and driving motor 300.Parking
Arrestment mechanism 100 is arranged between spreadet spreadet wheel 200 and driving motor 300, and driving motor 300 passes through parking and braking mechanism 100
Realize locking spreadet spreadet wheel 200 or unlock spreadet spreadet wheel 200.
Specifically, spreadet spreadet wheel 200, which has, forms tooth between its circumferentially distributed gear teeth 210, the two neighboring gear teeth 210
Slot 220, spreadet spreadet wheel 200 are fixedly attached on the output shaft 400 of gearbox.
Parking and braking mechanism 100 has pawl 10, and pawl 10 has two states, lockup state and unlocked state.One
As in the case of, pawl 10 is in the unlocked state, at this point, keeping certain distance, spreadet spreadet wheel between pawl 10 and spreadet spreadet wheel 200
200 are not locked up, and power can be transferred to transmission shaft (not shown) by output shaft 400 by gearbox, and automobile can be just
Often traveling.Pawl 10 can move to lockup state under the effect of external force, at this point, pawl 10 is fallen into tooth socket 220, locking tooth
Wheel 200 is locked, and output shaft 400 can not move, automobile brake.
The power that driving pawl 10 moves to lockup state is directed to the parking sliding block 20 of parking and braking mechanism 100, root
This derives from driving motor 300.When parking sliding block 20 is close to pawl 10, pawl 10 can be pushed to move to lockup state；When
When parking sliding block 20 is far from pawl 10, pawl 10 can restore to unlocked state.
100 structure chart of parking and braking mechanism when two states is in Fig. 2 shows pawl 10, wherein dotted portion table
Show that pawl 10 is in lockup state, bold portion indicates that pawl 10 is in the unlocked state.
Parking and braking mechanism 100 further includes pressing 30, and when pawl 10 is in lockup state, parking sliding block 20 is located at pressing
Between 30 and pawl 10, the position of pressing 30 is fixed at this time, 30 clamping parking sliding block 20 of pressing, can prevent parking sliding block 20 from anticipating
Outer abjection, so that pawl 10 restores unlocked state, automobile brake is released, and causes contingency.
Pressing 30 can prevent parking sliding block 20 from surprisingly deviating from, and cause the accident；But simultaneously as pressing 30 is applied to parking
Clamping force on sliding block 20, when really needing unlock spreadet spreadet wheel 200, parking sliding block 20 can not be deviate from easily.The prior art
In, in order to solve the above-mentioned technical problem, increase the driving force of driving motor 300, it is therefore desirable to improve the torsion of driving motor 300
Square, so that 300 cost of driving motor is substantially improved.
It, can be by cancelling pressing 30 to realize this in order to solve big, the at high cost technical problem of 300 torque of driving motor
Technical effect, still, after cancelling pressing 30, technical staff can not avoid parking sliding block 20 surprisingly de- by effective technological means
Out, lead to the generation of contingency.
The study found that the big basic reason of 300 torque of driving motor is: pressing 30 in the prior art is fixing piece,
It is not movable；If pressing 30 is designed as movement parts, it is able to solve the big problem of 300 torque of driving motor.
Specifically, pressing 30 is enable to move to lock position and unlocked position (any other position in addition to lock position
Set), when needing to lock spreadet spreadet wheel 200, pressing 30 is made to be fixed on lock position, at this point, pressing 30 can be sliding to parking
Block 20 applies clamping force, prevents parking sliding block 20 from surprisingly deviating from.When needing to release the locking to spreadet spreadet wheel 200, make pressing
30 release fixation on lock position, i.e., pressing 30 can move to unlocked position, at this point, pressing 30 is released to parking sliding block 20
Clamping force so that driving motor 300 applies lesser power, it will be able to make parking sliding block 20 deviate from, pawl 10 restore to unlock
State releases the locking to spreadet spreadet wheel 200.
That is, when pressing 30 is located at lock position, pressing 30 can clamping parking sliding block 20, when pressing 30 is located at
When unlocked position, pressing 30 releases the clamping to parking sliding block 20.
In the present embodiment, parking and braking mechanism 100 includes movable pressing 30, and pressing 30 can move to lock position
And unlocked position, when pressing 30 is located at lock position, pressing 30 can clamping parking sliding block 20, when pressing 30 be located at solution lock-bit
When setting, pressing 30 releases the clamping to parking sliding block 20.
It should be noted that pressing 30 being capable of clamping parking cunning when the pressing 30 in the present embodiment is located at lock position
Block 20；It is not meant to when pressing 30 is located at lock position, pressing 30 is centainly in the state of clamping parking sliding block 20, also
It is to say, when pressing 30 is located at lock position, pawl 10 might not be in lockup state, lock spreadet spreadet wheel 200.
It is the parking and braking mechanism exploded view of the present embodiment referring to Fig. 3.Specifically in the present embodiment, parking and braking mechanism
100 further include the first mounting plate 40a, the first mounting plate 40a perpendicular to pressing 30 equipped with first sliding groove 41, first sliding groove 41
Extend along plane where the first mounting plate 40a.One end of pressing 30 is arranged in first sliding groove 41, and can be along first sliding groove 41
Sliding, pressing 30 can slide into lock position, unlocked position along first sliding groove 41.
In the present embodiment, under the premise of guaranteeing that pressing 30 can move to lock position, unlocked position, to first sliding groove
There is no limit for 41 extending direction on the first mounting plate 40a.
It can be slid along first sliding groove 41 to make pressing 30 only, prevent pressing 30 along perpendicular to the first mounting plate 40a's
Direction movement, pressing 30 are additionally provided with step 31 in one end of insertion first sliding groove 41, and step 31 can fit in the first mounting plate
The plate face of 40a, prevent pressing 30 it is excessive protrude into first sliding groove 41.
In other embodiments, the first mounting plate 40a can be replaced using other component.For example, setting track, makes pressing
30 can move to unlocked position, lock position along the track；Clamping jaw can also be set, and the clamping jaw is for fixing pressing 30, benefit
With circuit control clamping jaw, enable clamping jaw that pressing 30 is transported to unlocked position, lock position.
In order to realize when needing to lock spreadet spreadet wheel 200, pressing 30 is enable to move to the technical effect of lock position.
Parking and braking mechanism 100 further includes the first actuator 50, and the first actuator 50 can drive pressing 30 to be moved to lock position.
Referring in particular to Fig. 2, Fig. 3, the first mandrel 51, the first mandrel 51, pressing 30 are fixed on the first mounting plate 40a
In the ipsilateral of the first mounting plate 40a；First actuator 50 is arranged on the first mandrel 51, and can revolve around the first mandrel 51
Turn, the first actuator 50 has the arcwall face around the first mandrel 51, and arcwall face can fit with pressing 30.
When the first actuator 50 is rotated around the first mandrel 51, arcwall face can push pressing 30 to move to locking position
It sets.
Specifically, arcwall face has first position 50a, second position 50b referring to Fig. 4, first position 50a drives from first
The distance of 50 rotation center of moving part is less than second position 50b with a distance from 50 rotation center of the first actuator, when the first actuator
50 rotate around the first mandrel 51, are bonded from first position 50a with pressing 30, until second position 50b is bonded with pressing 30, first
Actuator 50 pushes pressing 30 to move to lock position.
The lock position of the present embodiment middle press pin 30 are as follows: when second position 50b is bonded with pressing 30, position locating for pressing 30
It sets, the other positions in first sliding groove 41 are unlocked position.Second position 50b in the present embodiment is that arcwall face drives from first
The farthest distance of 50 rotation center of moving part, in other embodiments, second position 50b is also possible to the other positions on arcwall face.
In order to realize clamping of the pressing 30 to parking sliding block 20, after pressing 30 is driven to lock position, also need to press
Pin 30 is fixed on lock position.In the present embodiment, when second position 50b fits with pressing 30, second position 50b can also
Pressing 30 is fixed on lock position, i.e., when pawl 10 lock spreadet spreadet wheel 200 when, second position 50b always with 30 phase of pressing
Fitting, to guarantee that pressing is in lock position always.
That is, the first actuator 50 can not only drive pressing 30 to move to lock position, additionally it is possible to by pressing 30
It is fixed on lock position.
In other embodiments, the first actuator 50 can be merely responsible for driving pressing 30 to lock position, when pressing 30
After moving to lock position, using the fixed pressing 30 of other modes.For example, fastener is arranged in first sliding groove 41, work as pressing
30 when moving to lock position, and pressing 30 can be blocked and be fixed by fastener；When needing to unlock spreadet spreadet wheel 200, engaging
Part discharges pressing 30, and pressing 30 is enable to move to unlocked position.
With continued reference to Fig. 4, the first actuator 50 in the present embodiment is in cam face, and arcwall face is the periphery of cam
Face；In other embodiments, the first actuator 50 can be other shapes, as long as the shape has first position 50a, second
Set 50b and the curved surface between first position 50a, second position 50b.
In the present embodiment, the first torsional spring 53 is also arranged on the first mandrel 51, the first torsional spring 53 can drive the first drive
Moving part 50 resets, and rotates the first actuator 50 around the first mandrel 51, and pressing 30 is pushed to move to lock position.
It should be noted that the first torsional spring 53 drives the rotation of the first actuator 50 in the present embodiment, make the first actuator 50
Pressing 30 is pushed to move to lock position；It is not meant to, when the first actuator 50 pushes pressing 30 to move to lock position,
First torsional spring 53 no longer drives the first actuator 50 to continue to rotate.First actuator 50 does not continue to the reason of rotation,
In there is other active forces to act on the first actuator 50,50 stress balance of the first actuator, thus it is stationary.
In other embodiments, the first actuator 50 can also be driven to be revolved around the first mandrel 51 using other modes
Turn.Such as: the first actuator 50 is fixed on the first mandrel 51, is rotated by the first mandrel of motor driven 51, the first mandrel 51
The first actuator 50 is driven to be rotated.
In other embodiments, the first actuator can also use other forms, such as: the first actuator includes the first drive
Dynamic motor moves to lock position by the first driving motor driving pressing 30, the first driving motor can also be made to drive pressing 30
Move to unlocked position.Specifically, the first drive rod can be arranged between the first driving motor and pressing 30, make the first driving
One end of bar is fixedly connected with pressing 30, the other end is fixedly connected with the first driving motor, and the first driving motor can drive by first
Lever driving pressing 30 moves in first sliding groove, and pressing 30 is made to be moved to unlocked position or lock position.
With continued reference to Fig. 2, Fig. 3, parking and braking mechanism 100 further includes the second actuator 60, and the second actuator 60 can drive
Dynamic parking sliding block 20 moves, and enables parking sliding block 20 that pawl 10 to be pushed to move.
Specifically, the second actuator 60 includes rotary shaft 61 and the rocker arm 62 being fixed in rotary shaft 61, rotary shaft
61 are fixed on the first mounting plate 40a, and rotary shaft 61, the first mandrel 51, the second mandrel 11 are located at the first mounting plate 40a's
Ipsilateral, rocker arm 62 is plate, is arranged in parallel with the first mounting plate 40a.
Rotary shaft 61 can be rotated around central shaft, and rocker arm 62 is driven to be rotated around rotary shaft 61, be shaken
Arm 62 is connect with parking sliding block 20.When rocker arm 62 is rotated around rotary shaft 61, rocker arm 62 can drive parking sliding block 20 to move,
Make parking sliding block 20 close to pawl 10 or far from pawl 10, when parking sliding block 20 is close to pawl 10, parking sliding block 20 can be pushed away
Pawl 10 moves, and is in pawl 10 to lockup state, locks spreadet spreadet wheel 200；When parking sliding block 20 is far from pawl 10,
Parking sliding block 20 is separated with pawl 10, and pawl 10 can restore automatically to unlocked state, unlocks spreadet spreadet wheel 200.
Rotary shaft 61 in the present embodiment is connect with driving motor 300, drives rotary shaft 61 to be revolved by driving motor 300
Turn.
In the present embodiment, when parking sliding block 20 is separated with pawl 10, pawl 10 can restore automatically to the original of unlocked state
Because being: being additionally provided with the second mandrel 11 on the first mounting plate 40a, the first mandrel 51, the second mandrel 11, pressing 30 are respectively positioned on first
Mounting plate 40a's is ipsilateral, and the second mandrel 11 is equipped with the second torsional spring 12, and the second torsional spring 12 can drive pawl 10 to reset, make spine
Pawl 10 is in the unlocked state.
As described above, the first actuator 50 can drive pressing 30 to move to lock position, and pressing 30 is fixed on
Lock position.The reason for keeping the first actuator 50 fixed is that the collective effect of the first torsional spring 53 and applied external force makes
One actuator, 50 stress balance.
This applied external force can be provided by motor, can also be provided by other forms.Specifically in the present embodiment
In, which is provided by the second actuator 60.
Specifically, parking and braking mechanism 100 also has the connector 52 to extend radially outwardly along the first mandrel 51, connector
52 are fixed on first actuator 50.Connector 52 has the plane 52a (Fig. 4) towards rocker arm 62, rocker arm 62
Outer peripheral surface offsets with plane 52a.
Therefore, different location and plane 52a when rocker arm 62 is rotated around rotary shaft 61, on 62 outer peripheral surface of rocker arm
It offsets, when these positions are inconsistent at a distance from 62 rotation center of rocker arm, it will be able to make connector 52 around the first mandrel 51
It makes rotating motion.
In the present embodiment, catch bar 65 is equipped on rocker arm 62, catch bar 65 is located at the edge of rocker arm 62, and perpendicular to
Rocker arm 62, catch bar 65 can offset with plane 52a.When the rotation of rocker arm 62 is to when making catch bar 65 and plane 52a offsets, connector
52 are able to drive the first actuator 50, make the first actuator 50 that pressing 30 are just fixed on lock position；When rocker arm 62 rotates
To when other positions and plane 52a being made to offset, connector 52 is able to drive the first actuator 50, makes the releasing pair of the first actuator 50
The fixation of pressing 30.
The effect that catch bar 65 is arranged is: when pressing 30 is fixed on lock position by the first actuator 50, connector
52 can preferably offset with rocker arm 62.In other embodiments, it can also be not provided with catch bar, do not influence the technical program
Implement.
In the present embodiment, connector 52 can offset with rocker arm 62 always, this is because being arranged on the first mandrel 51
First torsional spring 53, the first torsional spring 53 can drive the first actuator 50 reset, that is, can drive connection part 52 reset, make to connect
Fitting 52 offsets with rocker arm 62 always.
With continued reference to Fig. 3, rocker arm 62 can be divided into two parts, respectively be located at the first rocker arm of 61 two sides of the second mandrel
62a, the second rocker arm 62b.In the present embodiment, the first rocker arm 62a offsets with connector 52, and connector 52 can be made around described the
One mandrel 51 makes rotating motion；Second rocker arm 62b is connect with parking sliding block 20, and parking sliding block 20 can be driven to move.
Therefore, rocker arm 62 is during driving parking sliding block 20 to move, additionally it is possible to drive the first actuator 50 to move, adjust
The positional relationship of whole first actuator 50 and parking sliding block 20.There are two functions for tool simultaneously for rocker arm 62, simplify parking braking machine
The structure of structure 100.
Specifically, rotary shaft 61 rotates, and the first rocker arm 62a, the second rocker arm 62b enclose when needing to lock spreadet spreadet wheel 200
It is rotated around rotary shaft 61.Second rocker arm 62b pushes parking sliding block 20 close to pawl 10, and pawl 10 is pushed to lock spreadet spreadet wheel
200；At this point, the first rocker arm 62a makes the first actuator 50 that pressing 30 are just fixed on lock position by connector 52.
When needing to unlock spreadet spreadet wheel 200, rotary shaft 61 rotates, and the first rocker arm 62a, the second rocker arm 62b are around rotation
Axis 61 rotates.Second rocker arm 62b pulls parking sliding block 20 far from pawl 10；At this point, the first rocker arm 62a makes the by connector 52
One actuator 50 releases the fixation to pressing 30.
If making the second rocker arm 62b that parking sliding block 20 be pulled to drive far from pawl 10, first when unlocking spreadet spreadet wheel 200
Part 50 releases fixing two processes while carrying out to pressing 30, reduction to 300 torsional moment of driving motor and unfavorable.
If making the first actuator 50 release the fixation to pressing 30 before the second rocker arm 62b pulling parking sliding block 20 is far from pawl 10,
The torsional moment of driving motor 300 can then be reduced to the greatest extent.
Specifically in the present embodiment, second sliding slot 63 is equipped on the second rocker arm 62b, second sliding slot 63 is along being parallel to first
Plane where mounting plate 40a extends.
Parking and braking mechanism 100 further includes parking pull rod 21, and parking pull rod 21 is arranged in parallel with the first mounting plate 40a, stays
There is car pull bar 21 the bending part 21a towards the first mounting plate 40a, bending part 21a to be arranged in second sliding slot 63, and can be along the
The sliding of two sliding slots 63.
It can be slid along second sliding slot 63 to make parking pull rod 21 only, prevent parking pull rod 21 along perpendicular to the first installation
The direction of plate 40a moves, and is additionally provided on bending part 21a along two protrusion 21b perpendicular to the first direction mounting plate 40a, convex
It plays 21b to be used to fit with the surface of the second rocker arm 62b, to prevent parking pull rod 21 along the side perpendicular to the first mounting plate 40a
To movement.
In the present embodiment, parking sliding block 20 is set in the periphery of parking pull rod 21, and the second rocker arm 62b is drawn by driving parking
Bar 21 drives parking sliding block 20 to move.
Therefore, when unlocking spreadet spreadet wheel 200, rotary shaft 61 rotates, and the first rocker arm 62a, the second rocker arm 62b are around rotation
Axis 61 rotates.When the second rocker arm 62b rotation, parking pull rod 21 slides in second sliding slot 63, but parking pull rod 21 itself is simultaneously
It is not moved with respect to pawl 10.And at this moment, the first rocker arm 62a releases the first actuator 50 to pressing 30 by connector 52
It is fixed.
After the first actuator 50 releases the fixation to pressing 30, parking pull rod 21 drives parking sliding block 20 to move, and makes to stay
Far from pawl 10, pawl 10 restores to unlocked state vehicle sliding block 20, unlocks spreadet spreadet wheel 200.Therefore, can accomplish to stay in pulling
Before vehicle sliding block 20 is far from pawl 10, the first actuator 50 is made to release the fixation to pressing 30, reduces driving electricity to the greatest extent
The torsional moment of machine 300.
In the present embodiment, parking sliding block 20 can also be along the axial sliding of parking pull rod 21.Specifically, parking pull rod 21 is outer
It encloses and is also arranged with helical spring 22, one end of helical spring 22 is fixed to parking pull rod 21, and the other end of helical spring 22 is fixed
To parking sliding block 20.Therefore, when the sliding axial along parking pull rod 21 of parking sliding block 20, elastic deformation occurs for helical spring 22.
The effect of helical spring 22 is: buffering is formed between parking pull rod 21 and parking sliding block 20.
As described above, spreadet spreadet wheel 200 has the shape between its circumferentially distributed gear teeth 210, the two neighboring gear teeth 210
At tooth socket 220, pawl 10 is fallen into tooth socket 220, and spreadet spreadet wheel 200 is locked.
If parking sliding block 20 and parking pull rod 21 are rigidly connected, it is likely that occur: when parking pull rod 21 drives parking sliding
Block 20 to pawl 10 close to when, parking sliding block 20 push pawl 10 move, fall in pawl 10 just on the gear teeth 210；At this point, spine
Pawl 10 can not be fallen into tooth socket 220, but parking sliding block 20 or the motive force that there is promotion pawl 10 to fall into tooth socket 220, this
When, it is possible to damage parking sliding block 20, parking pull rod 21 or pawl 10.
In the present embodiment, due to being equipped with helical spring 22 between parking pull rod 21 and parking sliding block 20.Therefore, work as pawl
10 when falling on the gear teeth 210, and parking sliding block 20 can store part energy by compression helical spring 22, when output shaft 400
When rotating a small angle, helical spring 22 can discharge stored energy, push pawl 10, pawl 10 is made to fall into tooth
In slot 220, spreadet spreadet wheel 200 is locked.So set, parking sliding block 20, parking pull rod 21 or pawl 10 will not be damaged.
In the present embodiment, third torsional spring 64 is also arranged in rotary shaft 61, third torsional spring 64 connects with parking pull rod 21,
Specifically connect with the bending part 21a of parking pull rod, its role is to: make to reset parking pull rod 21, drives parking pull rod
21 slide along second sliding slot 63, make parking pull rod 21 far from pawl 10.
Specifically, rotary shaft 61 rotates when unlocking spreadet spreadet wheel 200, third torsional spring 64 follows the rotation of rotary shaft 61
And rotate, when parking pull rod 21 slides in second sliding slot 63, third torsional spring 64 to parking pull rod 21 have make parking pull rod
21 far from 10 active force of pawl；When the first actuator 50 releases the fixation to pressing 30, third torsional spring 64 can drive parking
For pull rod 21 far from pawl 10, parking pull rod 21 is able to drive parking sliding block 20 far from pawl 10, to realize unlock spreadet spreadet wheel.
The effect of third torsional spring 64 is to drive parking pull rod 21 and drives parking sliding block 20 far from pawl 10, realizes solution
Lock.In other embodiments, parking pull rod 21 can also be driven by the second rocker arm 62b and drives parking sliding block 20 far from pawl
10, realize unlock.Specifically, using second sliding slot 63, when the second rocker arm 62b is rotated to making parking pull rod 21 from second sliding slot
When 63 one end slides onto the other end, if continuing to rotate the second rocker arm 62b in same direction, the second rocker arm 62b can be made to drive
Dynamic parking pull rod 21 moves.
In other embodiments, the second actuator can use other forms, such as: the second actuator includes the second driving
Motor is moved by the second driving motor driving parking sliding block 20, makes parking sliding block 20 that pawl 10 be pushed to move, be in pawl 10
To lockup state；Alternatively, separating parking sliding block 20 with pawl 10, pawl 10 restores automatically to unlocked state.
Specifically, the second drive rod can be arranged between the second driving motor and parking sliding block 20, make the second drive rod
One end be fixedly connected with parking sliding block 20, the other end is fixedly connected with the second driving motor, the second driving motor can pass through second
Drive rod drives parking sliding block 20 to move, and makes parking sliding block 20 that pawl 10 be pushed to move, or divide parking sliding block 20 with pawl 10
From.
Second actuator can also be designed to be able to the first actuator 50 of driving to rotate around the first mandrel 51, make first
Actuator 50 releases the fixation to pressing 30 on lock position.For example, it is packed in the first actuator 50 on second mandrel 51,
Enable the second actuator that the second mandrel 51 to be driven to rotate, and drive the rotation of the first actuator 50, releases the fixation to pressing 30.
In the present embodiment, parking and braking mechanism 100 further includes locating part 70, and locating part 70 is fixed at the first mounting plate
On 40a, locating part 70 has through-hole 71, and parking pull rod 21 passes through through-hole 71.The effect of locating part 70 is: in parking pull rod 21
Close to pawl 10 or far from during pawl 10, the radial deflection of parking pull rod 70 is limited.
For the technical solution of clearer display invention, this implementation provides perspective view after parking and braking mechanism 100 is installed
And sectional view, it is specific as shown in Figure 5, Figure 6.
Referring to Fig. 7 to Figure 10, parking and braking mechanism 100 is shown from locking 200 state of spreadet spreadet wheel to unlock locking tooth
Take turns the operation figure of 200 states.
The process operation that the present embodiment parking and braking mechanism 100 unlocks spreadet spreadet wheel 200 is as follows:
Referring to Fig. 7, show state when parking sliding block 20 locks spreadet spreadet wheel 200: pawl 10 is located at lockup state and (falls
Enter in tooth socket 220), for parking sliding block 20 between pawl 10 and pressing 30, pressing 30 is fixed on locking by the first actuator 50
Position.
At this point, if desired unlocking spreadet spreadet wheel 200, then, driving motor 300 runs and rotary shaft 61 is driven to be rotated,
Rotary shaft 61 drives the first rocker arm 62a, the second rocker arm 62b to be rotated around rotary shaft 61.
Second rocker arm 62b is moved towards the direction far from pawl 10, at this point, since the first actuator 50 will the fixation of pressing 30
In lock position, therefore, because snap action of the pressing 30 to parking sliding block 20, so that parking sliding block 20 is still fixed on pressing
Between 30 and pawl 10, parking pull rod 21 at this time is unable to drive parking sliding block 20 far from pawl 10, and parking pull rod 21 is second
Sliding in sliding slot 63.
First rocker arm 62a is rotated around rotary shaft 61, is done the connector to offset with it 52 around the first mandrel 51 and is rotated
Movement, since connector 52 is fixed on the first actuator 50, the first actuator 50 does rotation fortune around the first mandrel 51
It is dynamic, so that the first actuator 50 is released the fixation to pressing 30.
Referring to Fig. 8, the state during the unlock spreadet spreadet wheel 200 of parking sliding block 20 is shown.
At this point, the rotation of rotary shaft 61 is to certain angle, the second rocker arm 62b turns over certain angle, parking pull rod 21 from second
One end of sliding slot 63 slides onto the intermediate region of second sliding slot 63, and third torsional spring 64 acts on driving pull rod 21, draws driving
Bar 21 is by the active force far from pawl 10.
It is the magnified partial view of parking and braking mechanism referring to Fig. 9.Wherein dotted portion indicates that parking sliding block 20 locks locking
State when gear 200, bold portion indicate that parking sliding block 20 unlocks the state during spreadet spreadet wheel 200.
First rocker arm 62a turns over certain angle, so that connector 52 moves, and drives the first actuator 50 around the
The rotation of one mandrel 51, makes the first actuator 50 release the fixation to pressing 30, pressing 30 can move to unlocked position, thus not
Clamping force is generated to parking sliding block 20 again, parking sliding block 20 is no longer influenced by the constraint of pressing 30.
Since parking sliding block 20 is no longer influenced by the constraint of pressing 30, third torsional spring 64 can drive parking pull rod 21 along third
Sliding slot 63 slides, and parking sliding block 20 is driven to move, and separates parking sliding block 20 with 10 phase of pawl.
Referring to Fig.1 0, show parking sliding block 20 and unlock the state after spreadet spreadet wheel 200: pawl 10 is located at unlocked state
(separating with 200 phase of spreadet spreadet wheel), parking sliding block 20 is separated with 10 phase of pawl, and pressing 30 does not generate clamping force to parking sliding block.
In the present embodiment, the lesser power drive rotary shaft 61 of the need one of driving motor 300 rotates, and makes the first rocker arm 62a
Band follower link 52 moves, and connector 52 drives the movement of the first actuator 50, and the first actuator 50 is made to release consolidating to pressing 30
It is fixed.
After the first actuator 50 releases the fixation to pressing 30, driving motor 300 more can easily drive rotation
Axis 61 continues to rotate, and makes third torsional spring 64 that parking pull rod 21 be driven to move, and parking pull rod 21 drives parking sliding block 20 to move, and realizes
Unlock.
In whole process, without applying by force to parking sliding block 20 under conditions of having 30 clamping parking sliding block 20 of pressing
Active force separates parking sliding block 20 with 10 phase of pawl.Compared to the prior art, the provided driving force of driving motor 300
Can be smaller, thus the reduction of 300 cost of driving motor can be realized using the driving motor 300 with low-force square.
Referring to Fig.1 1, the first mandrel 51, the second mandrel 11 in the present embodiment, rotary shaft 61 are fixed at the first installation
On plate 40a, pressing 30 can be slided along the first sliding groove 41 being arranged on the first mounting plate 40a.Optionally, make parking braking machine
Structure 100 further includes that the second mounting plate 40b, the first mounting plate 40a, the second mounting plate 40b are arranged face-to-face, makes pawl 10, parking
The components such as sliding block 20, pressing 30, parking pull rod 21, the first actuator 50, the second actuator 60 be located at the first mounting plate 40a,
Between second mounting plate 40b, better fixation can be played to the components between the first mounting plate 40a, the second mounting plate 40b
Effect.
Connecting rod 42 is additionally provided between first mounting plate 40a, the second mounting plate 40b, connecting rod 42 is for fixing the first peace
Loading board 40a, the second mounting plate 40b make the first mounting plate, the second mounting plate 40b surround a fixed space.
The present embodiment also provides a kind of parking braking system, including driving motor 300, spreadet spreadet wheel 200 and the above
Parking and braking mechanism 100.
The present embodiment also provides a kind of automatic transmission, including above-described parking braking system.
The present embodiment also provides a kind of automobile, including above-described automatic transmission.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (17)
1. a kind of parking and braking mechanism, for locking spreadet spreadet wheel characterized by comprising
Pawl and parking sliding block, the parking sliding block can push the pawl to move, and make the pawl locking spreadet spreadet wheel；
Movable pressing, the pressing can move to lock position and unlocked position, when the pressing is located at the locking
When position, the pressing can parking sliding block described in clamping, when the pressing is located at the unlocked position, the pressing is released
Clamping to the parking sliding block；
It further include the first mounting plate perpendicular to the pressing, first mounting plate is equipped with first sliding groove, and described first is sliding
Slot extends along plane where mounting plate, and one end of the pressing is arranged in the first sliding groove, and can be along the first sliding groove
Slide into the lock position, unlocked position；
It further include the first actuator, first actuator can drive the pressing to be moved to the lock position；Described
The first mandrel is fixed on one mounting plate, first mandrel, pressing are located at the ipsilateral of first mounting plate；Described first
Actuator is arranged on first mandrel, and can rotate around first mandrel, and first actuator, which has, to be surround
The arcwall face of first mandrel, the arcwall face can fit with the pressing, and it is described to push the pressing to move to
Lock position.
2. parking and braking mechanism as described in claim 1, which is characterized in that the arcwall face can also fix the pressing
In the lock position.
3. parking and braking mechanism as described in claim 1, which is characterized in that it is arranged with the first torsional spring on first mandrel,
First torsional spring can drive first actuator to reset, and rotate first actuator around first mandrel,
And the pressing is pushed to move to the lock position.
4. parking and braking mechanism as described in claim 1, which is characterized in that it further include the second actuator, second driving
Part can drive the parking slide block movement, enable the parking sliding block that the pawl to be pushed to move.
5. parking and braking mechanism as claimed in claim 4, which is characterized in that second actuator includes being fixed at institute
The rocker arm stating the rotary shaft on the first mounting plate and being fixed in the rotary shaft, the rotary shaft can be rotated and be driven
Rocker arm is rotated around the rotary shaft；The rocker arm is connect with the parking sliding block, can drive the parking slide block movement.
6. parking and braking mechanism as claimed in claim 5, which is characterized in that the arcwall face can also fix the pressing
In the lock position；
The parking and braking mechanism further includes the connector to extend radially outwardly along first mandrel, and the connector fixation is set
It sets on first actuator；
The connector has the plane towards the rocker arm, and the rocker arm offsets with the plane；When the rocker arm surrounds institute
When stating rotary shaft and being rotated, the rocker arm can drive the connector to make rotating motion around first mandrel.
7. parking and braking mechanism as claimed in claim 6, which is characterized in that the rocker arm includes being located at the rotary shaft two sides
The first rocker arm and the second rocker arm；
First rocker arm offsets with the connector, and the connector can be driven to do rotation fortune around first mandrel
It is dynamic；Second rocker arm is connect with the parking sliding block, can drive the parking slide block movement.
8. parking and braking mechanism as claimed in claim 7, which is characterized in that second rocker arm is equipped with second sliding slot；
The parking and braking mechanism further includes parking pull rod, and the parking pull rod is arranged in parallel with first mounting plate, described
Parking pull rod has the bending part towards first mounting plate, and the bending part is arranged in the second sliding slot, and can edge
The second sliding slot sliding；
The parking sliding block is set in the periphery of the parking pull rod, and second rocker arm is by driving the parking pull rod to drive
The parking slide block movement.
9. parking and braking mechanism as claimed in claim 8, which is characterized in that the parking sliding block can be along the parking pull rod
Axial sliding；
The periphery of the parking pull rod is also arranged with helical spring, and one end of the helical spring is fixed to the parking pull rod,
The other end of the helical spring is fixed to the parking sliding block.
10. parking and braking mechanism as claimed in claim 9, which is characterized in that be arranged with third torsional spring, institute in the rotary shaft
Third torsional spring is stated to connect with the parking pull rod；
The third torsional spring can drive the parking pull rod to slide along second sliding slot, make the parking pull rod far from the spine
Pawl.
11. parking and braking mechanism as claimed in claim 8, which is characterized in that further include locating part, the locating part fixation is set
It sets on first mounting plate, the locating part has through-hole, and the parking pull rod passes through the through-hole, and the locating part is used
It is limited in the radial deflection of the parking pull rod during the motion.
12. parking and braking mechanism as described in claim 1, which is characterized in that first actuator includes the first driving electricity
Machine and the first drive rod, first drive rod are fixedly connected with the pressing and first driving motor, first driving
Motor can drive the pressing to be moved to the lock position and unlocked position by first drive rod.
13. parking and braking mechanism as claimed in claim 4, which is characterized in that second actuator includes the second driving electricity
Machine and the second drive rod, second drive rod are fixedly connected with the parking sliding block and second driving motor, and described second
Driving motor can drive the parking slide block movement by second drive rod.
14. parking and braking mechanism as claimed in claim 13, which is characterized in that first actuator can also be by the pressure
Pin is fixed on the lock position；
Second driving motor can also drive first actuator to rotate around first mandrel, make described first to drive
Moving part releases the fixation to the pressing on the lock position.
15. a kind of parking braking system characterized by comprising the described in any item parking braking machines of claim 1 to 14
Structure.
16. a kind of automatic gear-box characterized by comprising parking braking system described in claim 15 and output shaft, institute
Spreadet spreadet wheel is stated to be fixed on the output shaft.
17. a kind of automobile, which is characterized in that including the automatic gear-box described in claim 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611031869.8A CN108087545B (en) | 2016-11-22 | 2016-11-22 | Parking and braking mechanism, parking braking system, automatic gear-box and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611031869.8A CN108087545B (en) | 2016-11-22 | 2016-11-22 | Parking and braking mechanism, parking braking system, automatic gear-box and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108087545A CN108087545A (en) | 2018-05-29 |
| CN108087545B true CN108087545B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611031869.8A Active CN108087545B (en) | 2016-11-22 | 2016-11-22 | Parking and braking mechanism, parking braking system, automatic gear-box and automobile |
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| US10571023B2 (en) * | 2018-07-24 | 2020-02-25 | GM Global Technology Operations LLC | Vehicle park system and method for shift out of park assist |
| CN111086492A (en) * | 2018-10-23 | 2020-05-01 | 上汽通用汽车有限公司 | Parking brake device and automobile |
| DE102018130765B4 (en) * | 2018-12-04 | 2020-08-06 | Schaeffler Technologies AG & Co. KG | Parking lock device for a transmission with a parking lock wheel |
| CN111981123B (en) * | 2019-05-21 | 2022-02-01 | 上海汽车集团股份有限公司 | Electro-hydraulic parking device and vehicle |
| EP3744586B1 (en) * | 2019-05-29 | 2022-03-16 | Volvo Car Corporation | Park lock device |
| DE102020126399B4 (en) | 2020-10-08 | 2022-08-04 | Schaeffler Technologies AG & Co. KG | Parking lock device for a transmission with a parking lock wheel |
| CN113770637A (en) * | 2021-07-19 | 2021-12-10 | 厦门尚一机械设备有限公司 | High-precision welding positioner |
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|---|---|
| CN108087545A (en) | 2018-05-29 |
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