CN109944939A - Electric automobile gear device parking apparatus and its method for diagnosing faults - Google Patents
Electric automobile gear device parking apparatus and its method for diagnosing faults Download PDFInfo
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- CN109944939A CN109944939A CN201810164254.5A CN201810164254A CN109944939A CN 109944939 A CN109944939 A CN 109944939A CN 201810164254 A CN201810164254 A CN 201810164254A CN 109944939 A CN109944939 A CN 109944939A
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- China
- Prior art keywords
- parking
- pawl
- protrusion
- clamping
- clamping protrusion
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
-
- 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
- F16H63/40—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 comprising signals other than signals for actuating the final output mechanisms
- F16H63/48—Signals to a parking brake or parking lock; Control of parking locks or brakes being part of the transmission
Abstract
The present invention relates to electric automobile gear device parking apparatus and its method for diagnosing faults, for the electric automobile gear device parking apparatus and its method for diagnosing faults, the clamping protrusion of the pawl of parking of park slot constraint or the solution system of gear of being parked is shaped to two tooth-shape structures, to improve restraining force when parking apparatus is parked, therefore pawl of parking can be improved to the fastening stability of gear of parking by having, on the other hand, the parking on inclination road, when parking, perceive the constrained of each clamping protrusion of the pawl of parking of the slot constraint of parking for gear of being parked, caution signal relevant to clamping bulging damage is generated rapidly, so as to improve pawl of parking to the fastening stability of gear of parking.
Description
Technical field
The present invention relates to electric automobile gear device parking apparatus and its method for diagnosing faults, in more detail, are related to one kind
Restraining force when parking apparatus is parked can be improved and improve pawl of parking to the electric car of the fastening stability for gear of parking
Speed changer parking apparatus and its method for diagnosing faults.
Background technique
In general, being used as the internal combustion engines such as the petrol engine, diesel engine of automobile prime mover, in combustor inner cylinder
Fossil fuel, and by the thermal energy occurred at this time with being used as power.
Therefore, containing relevant nitrogen oxides (Nox) of burning, because of the carbon monoxide of imperfect combustion generation in its tail gas
(CO) or the harmful components such as hydrocarbon (HC).This ingredient pollutes atmosphere with the increase of vehicle, is harmful to human body, thus draws
Play pollution problem.
Therefore, seeking a variety of tail gas countermeasures in order to reduce harmful components using the automobile of internal combustion engine, but can not be complete
The harmful components contained in full removal tail gas.It therefore, is that noise is small, complete by what is attracted attention as a link of tail gas countermeasure
The electric car of tail gas is not discharged entirely.
The motor that electric car obtains power using the electricity for receiving battery supply is operated, rather than utilizes vapour
The fossil fuels such as oil, diesel oil obtain the engine of power.
Therefore, without CO2 emission, the energy efficiency of motor is higher than engine energy efficiency, as environmental-friendly
Automobile and attract tremendous attention.
This electric car motor smaller than engine using the power generated, thus in the case where needing big power
It will use speed changer.
For the electric car that the electric energy stored in using battery is run as motor force, must be requested that set
Set the parking apparatus of speed changer.
But previous electric automobile gear device is solved after tilting road with parking apparatus by parking electric automobile, parking
When except parking, with excessive load is applied to parking apparatus due to the torque according to caused by vehicle weight occurs, there is spine of parking
The raised risk that may be damaged of the clamping of pawl, to there are problems that driver's uneasiness and discontented wait is caused to reduce commodity.
In addition, in the vehicle driving, when driver or passenger, which make mistakes, to be entered gear lever to park grade, park gear or
Pawl etc. of parking park component breakage, so that the problem of speed changer can not integrally operate can occur.
Existing technical literature
Patent document
Korean Patent Laid the 2016-0080770th (2016.07.08)
Summary of the invention
Technical problem
Therefore, the present invention is researched and developed to solve the problems, such as described above, and it is an object of that present invention to provide one kind to mention
Restraining force when high parking apparatus is parked and pawl of parking can be improved, the electric car of the fastening stability for gear of parking is become
Fast device parking apparatus and its method for diagnosing faults.
Technical solution
In order to reach purpose as described above, the present invention provides a kind of electric automobile gear device parking apparatus, the electricity
In electrical automobile speed changer parking apparatus, by the operating for pawl of parking as caused by manipulation gear lever, the pawl energy of parking
Enough gears of being parked constrain or solve system；Wherein, by the pawl of parking described in slot constraint or solution system of parking of the gear of parking
Clamping protrusion constitute a pair of and formed by two tooth-shape structures, wherein the opposed facing medial surface of each clamping protrusion
From the side of the corresponding protrusion of parking, separate to be formed in a manner of keeping setting interval a, b, each clamping protrusion
Mutually back to lateral surface so that than the setting to be spaced a, b opposite interval between the corresponding side parked in protrusion
The small mode in ground is formed.
According to an embodiment of the invention, being provided with sense part, the sense part perceives facing each other for the clamping protrusion
Medial surface and setting interval a, b of the side for the protrusion of parking for corresponding to the medial surface variation.
According to an embodiment of the invention, tilt road on parking, parking when, because occur by vehicle weight caused by torque,
The direction that load is acted on to the clamping protrusion for pawl of parking described in constraining in the slot of parking by vehicle inclination side
To decision, the separation fluctuation between the clamping protrusion and the slot of parking is convex from load to the clamping of the pawl of parking
The direction worked determines.
According to an embodiment of the invention, the sense part perceives the interval between the clamping protrusion and the slot of parking
It changes, when the interval increase of any of described interval, when remaining one interval reduces, can be judged as that interval reduces side opposite
It is clamped bulging damage.
According to an embodiment of the invention, the mutual face that the sense part is raised by each clamping for being set to the pawl of parking
Pair medial surface contact sensor constitute.
According to an embodiment of the invention, being formed on the opposed facing medial surface of each clamping protrusion of the pawl of parking
Have the step difference groove portion that depth is different, wherein be formed with clamping groove face, depth it is deep and under state of normally parking with institute
The side contact for stating protrusion of parking, and is formed with step difference groove face, and depth is than the clamping groove face relatively shallowly and from described
Be clamped groove face and step difference be presented along inclined stepped surface, and have sense part, in parking, parking on tilting road, because
The torque as caused by vehicle weight occurs and improper the parking under state of the gear rotation of parking, when the protrusion of parking
When contacting with the step difference groove face, the pawl of parking rises and contacts with the sense part.
The present invention provides a kind of method for diagnosing faults of automotive transmission parking apparatus, comprising: inclination road on parking,
When parking, because of torque caused by occurring by vehicle weight, load is made to the clamping protrusion for constraining in the pawl of parking in slot of parking
Direction is determined by the inclined direction of vehicle；And works as and be constrained in the constrained for parking the pawl of parking in slot
When changing and meeting the fault detection condition of the parking apparatus, such case is alerted to driver.
According to an embodiment of the invention, it is characterized in that, the fault detection condition of the parking apparatus is the spine of parking
The opposed facing medial surface of the clamping protrusion of pawl and the interval of the side for the protrusion of parking for corresponding to the medial surface
It changes.
Invention effect
It, will according to electric automobile gear device parking apparatus and its method for diagnosing faults of the invention formed as described above
The clamping protrusion of pawl of parking of park slot constraint or solution system of gear of being parked is shaped to two tooth-shape structures, to improve pool
Restraining force when vehicle device is parked, therefore have the effect of capable of improving and park pawl to the fastening stability of gear of parking.
In addition, each clamping for perceiving the pawl of parking of the slot constraint of parking for gear of being parked is convex when tilting path-chromatic number
The clamping position risen, generates rapidly caution signal relevant to clamping bulging damage, can be improved pawl pair of parking to have
Park gear fastening stability effect.
Detailed description of the invention
Fig. 1 is the figure for showing electric automobile gear device parking apparatus according to a first embodiment of the present invention.
Fig. 2 and Fig. 3 is the application lotus for showing electric automobile gear device parking apparatus according to a first embodiment of the present invention
Carry the figure that the constrained of the pawl of parking in direction changes.
Fig. 4 is the state for showing the breakage of any of clamping protrusion for pawl of parking according to a first embodiment of the present invention
Figure.
Fig. 5 be show electric automobile gear device parking apparatus according to an embodiment of the present invention method for diagnosing faults it is suitable
Sequence figure.
Fig. 6 is the figure for showing electric automobile gear device parking apparatus according to a second embodiment of the present invention.
Fig. 7 is the figure for showing electric automobile gear device parking apparatus according to a third embodiment of the present invention.
Appended drawing reference
10: gear 11 of parking: slot of parking
12: protrusion 20 of parking: pawl of parking
21,22: clamping protrusion 30: sense part
Specific embodiment
The present invention can permit the change of multiplicity, can have variform, will be explained in embodiment in the body of the email.But
It is that this not limits the invention to specifically disclose form, it is thus understood that including wrapping in thought and technical scope of the invention
Contain have altered, equipollent and substitute.When illustrating each figure, for element is similarly comprised, use similar attached
Icon note.
The term is served only for for a constituent element being different from the purpose of other constituent elements.Art used herein
Language is served only for illustrating specific embodiment, does not really want the meaning for limiting the present invention.As long as being not known on unity and coherence in writing indicates different, single
Several expression includes the expression of plural number.
With reference to the accompanying drawings, the embodiment of the present invention is described in detail.
Fig. 1 is the figure for showing electric automobile gear device parking apparatus according to a first embodiment of the present invention, Fig. 2 and Fig. 3
It is the pawl of parking for showing the direction that is further applied load of electric automobile gear device parking apparatus according to a first embodiment of the present invention
Constrained change figure, Fig. 4 is to show any of the clamping protrusion for pawl of parking according to a first embodiment of the present invention
The figure of damaged state.
When by parking electric automobile, parking, releasing is parked after tilting road, because occurring to turn round caused by according to vehicle weight
Square and apply excessive load to parking apparatus, thus the clamping protrusion 21,22 for pawl 20 of parking may be damaged.
Therefore, the present invention make to park the preparation property of pawl 20 clamping protrusion 21,22 and meanwhile operate, and with two tooth form knots
It is configured to that the clamping protrusion 21,22 of the pawl 20 of parking of system is constrained or solved in the gear 10 of parking.
Two clamping protrusions 21,22 are respectively set in the pawl 20 of parking, this is in order to which the clamping for coping with either side is convex
21,22 damaged situations are played, and two clamping protrusions 21,22 mutually play preparation sexual function.
The slot 11 of parking for gear 10 of parking can be constrained in by especially constituting a pair of described two clamping protrusions 21,22,
According to the variable constrained for the pawl 20 of parking for constraining in slot 11 of parking, the gear 10 of parking that can be informed in inclination road
The direction being further applied load between pawl 20 of parking.
Parking apparatus formed as described above is illustrated below.
As shown in Figure 1, when gear lever is chosen parking position P, the input shaft 100 of speed changer by park pawl 20 with
Park gear 10 constraint and mechanically fixed.
Wherein, the gear 10 of parking refers to the tooth being fixed in a manner of not allowing the input shaft 100 of speed changer to rotate
Wheel, if pawl 20 of parking, which refers to, is transformed into parking position P for gear lever, be engaged in the parking slot 11 of gear 10 of parking and by about
The component of beam.
That is, cam spring 110 pushes cam 120 when gear lever is transformed into parking position P, pawl 20 of parking is with solid
Dead axle 130 is constrained to park when pivoting about the slot 11 of parking of gear 10, thus input shaft 100 is fixed.
The gear 10 of parking is set to input shaft 100, rotates integrally together with the input shaft 100, by pawl of parking
20 selectively constrain and execute movement of parking.
The pawl 20 of parking is set on the outside of the circumferential surface of the gear 10 of parking, and to be incited somebody to action according to the movement of cam 120
The mode that can rotate to forward-reverse centered on fixing axle 130 is configured, so as to constrain in the gear of parking
10 slot 11 of parking.
The clamping protrusion 21,22 of the pawl 20 of parking is formed by two tooth-shape structures with preparation sexual function respectively,
Park pawl 20 each clamping protrusion 21,22 opposed facing medial surface 21b, 22b from the side of corresponding protrusion 12 of parking,
It separates to be formed in a manner of keeping setting interval a, b.
In addition, it is each it is described clamping protrusion 21,22 it is mutual back to lateral surface 21a, 22a with corresponding to its park it is convex
The interval between 12 side is played, is formed in a manner of more relatively small than described setting interval a, b.
Therefore, when tool is parked gear constraint there are two the pawl 20 of parking of clamping protrusion 21,22, each clamping protrusion
21,22 opposed facing medial surface 21b, 22b and the aspectant pool of medial surface 21b, 22b with the clamping protrusion 21,22
The side of vehicle protrusion 12 separates to be formed in a manner of keeping certain intervals a, b, each clamping protrusion 21,22 it is mutual back to it is outer
Side 21a, 22a and can be with the aspectant side for parking protrusion 12 lateral surface 21a, 22a of the clamping protrusion 21,22
The mode to contact with each other is formed.
Interval a, b between medial surface 21b, 22b of each clamping protrusion 21,22 and the side for protrusion 12 of parking is with nothing
The degree of method contact is spaced from each other, thus can easily perceive the variation of described interval a, b.Especially when tilting on road, because
The torque as caused by vehicle weight occurs, load is made to the clamping protrusion 21,22 for constraining in the pawl 20 of parking in slot 11 of parking
Direction is determined by inclination of vehicle direction.
As shown in Fig. 2, in parking, parking on tilting road, when parking gear 10 according to vehicle weight with clockwise side
To when rotation, being applied to the load action of pawl 20 of parking in the lateral surface of the first clamping raised 21 contact with protrusion 12 of parking
21a。
In contrast, as shown in figure 3, tilt road on parking, parking when, when according to vehicle weight park gear 10 with
When rotating counterclockwise, the load action for pawl 20 of parking is applied in the second clamping protrusion 22 contacted with protrusion 12 of parking
Lateral surface 22a.
It therefore, can be as follows for the failure of Accurate Diagnosis electric automobile gear device parking apparatus according to the present invention
The fault detection condition of the shown determination parking apparatus.
When by parking electric automobile, parking after tilt road release park when, due to generation as caused by vehicle weight
Torque, in the state of applying excessive load in parking apparatus and clamping protrusion 21,22 breakage of pawl 20 of parking, described in perception
Interval a, b between clamping protrusion 21,22 and protrusion 12 of parking, when there is variation at the interval compared with the initial base interval of setting
When, it can be determined that the breakage of any of clamping protrusion 21,22.
As shown in figure 4, increasing when being spaced the interval any of a, b a between the clamping protrusion 21,22 and protrusion 12 of parking
Add, in contrast, when remaining one interval b reduces, it can be determined that the opposite clamping protrusion 21 that interval reduces side is damaged.That is, can
To judge that interval increases by 21 breakage of clamping protrusion of side.
Consider this condition, the fault detection of electric automobile gear device parking apparatus can be executed.
Fig. 5 be show electric automobile gear device parking apparatus according to an embodiment of the present invention method for diagnosing faults it is suitable
Sequence figure.
As shown in Fig. 2, perceiving the clamping protrusion 21,22 at any time and corresponding to the protrusion 12 of parking of clamping protrusion 21,22
Between the sense part 30 of interval a, b be set to the side surface part of the gear 10 of parking.
Therefore, the fault detection condition of the parking apparatus of sense part 30 perceive at any time clamping protrusion 21,22 with
Corresponding to interval a, b between the protrusion 12 of parking of clamping protrusion 21,22, the situation that the interval a, b are increasedd or decreased judges
It is damaged so as to the clamping protrusion 21,22 for the pawl 20 that is perceived as parking for described interval a, b variation.
Then, the sense part 30 exports to control unit (being not shown on figure) and believes to the damaged relevant perception of pawl 20 of parking
Number, the control unit drives caution signal generating unit (being not shown on figure), so as to so that the instrument board of driver's seat was equipped with
Warning tones are lighted or occurred to emergency warning lamp (being not shown on figure).
On the other hand, the sense part 30 can carry out this error count initial when there is interval a, b variation
Change, and returns to initial conditions and re-execute the fault detection algorithm of parking apparatus.
The control unit should be observed to detect parking apparatus failure and judge multiple conditions, and it is normal for ignoring parking apparatus
State can cause to obscure, therefore, although when not if mistakenly carrying out fault diagnosis and caution signal occurring to driver
When being the failure of parking apparatus but being determined as fault diagnosis, it is contemplated that electric car commodity reduces and reliability decrease,
Thus the fault detection of parking apparatus should be carried out using the fault detection condition of the parking apparatus of multiplicity.Particularly, determine to park
The number of the fault diagnosis of device is also one of essential condition.
The error count is indicated hypothetically to determine to occur the number of the diagnostic result failure of parking apparatus, parked every time
When the fault detection of device, there is the aggregate-value for for example increasing ' 1 ' every time.The reasons why increasing and initializing this error count
That fault diagnosis may be mistakenly carried out due to noise or maloperation, in order to prevent this error detection and increased
Adduction initializes this error count.That is, disposably judging for so-called parking apparatus failure may due to reasons such as noises
Can not correctly it determine, thus preferably, it is only limited to certain number or more and constantly detects fault diagnosis and be more than critical value
Situation is just finally determined as parking apparatus failure.
Driver can perceive the emergency warning lamp or warning tones of instrument board, receive parking apparatus inspection in maintenance station, request is more
Change or repair damaged component of parking.
In the following, for illustrating another embodiment of electric automobile gear device parking apparatus according to the present invention, for tool
There is the composition of identical as first embodiment of the invention composition and identical function, using identical title and label is constituted, in order to keep away
Exempt from duplicate composition, omits the detailed description constituted to these.
Fig. 6 is the figure for showing electric automobile gear device parking apparatus according to a second embodiment of the present invention, and Fig. 7 is display
The figure of electric automobile gear device parking apparatus according to a third embodiment of the present invention.
In Fig. 6, park pawl 20 respectively clamping protrusion 21,22 opposed facing medial surface 21b, 22b be provided with by
The sense part 30-1 that contact sensor is formed.
This is in parking, parking on tilting road, and because of torque caused by occurring by vehicle weight, gear 10 of parking is revolved
Turn, at this point, relative to the sense part 30-1 formed in opposed facing medial surface 21b, 22b of each clamping protrusion 21,22,
Protrusion 12 of parking carries out rotation and close to its side.It is moored if any of clamping protrusion 21,22 for pawl 20 of parking is damaged
The protrusion 12 of parking of skiving wheel 10 contacts for unbroken remaining one with clamping protrusion 21,22, then sense part 30-1 perception clamping
Interval a, b have changed between protrusion 21,22 and protrusion 12 of parking, and the damaged relevant sense of pawl 20 that exports and park to control unit
Know signal.
On the other hand, in Fig. 7, each clamping protrusion 21,22 for pawl 20 of parking opposed facing medial surface 21b,
22b is formed with the step difference groove portion of different depth.
In the step difference groove portion, it is formed with depth deeply and the protrusion of parking under state of normally parking with gear 10 of parking
12 engagement clamping groove face 21b-1,22b-1, and be formed with depth than described clamping groove face 21b-1,22b-1 relatively shallowly and from
Step difference groove face 21b-2,22b-2 of step difference are presented along inclined stepped surface by described clamping groove face 21b-1,22b-1.
The pawl 20 of parking is parked under state normally, the side for protrusion 12 of parking and the clamping of clamping protrusion 21,22
Groove face 21b-1,22b-1 contact are parked in parking, parking on tilting road because the torque as caused by vehicle weight occurs
Gear 10 rotate it is improper parking under state, park protrusion 12 side from it is described clamping protrusion 21,22 clamping groove face
21b-1,22b-1 are slided along stepped surface and are contacted step difference groove face 21b-2,22b-2 that step difference is presented.
Compared with described clamping groove face 21b-1,22b-1, described step difference groove face 21b-2,22b-2 are relatively outward
The widened shape in direction, the shape is in the state of the breakage of any of clamping protrusion 21,22 for pawl 20 of parking, if inclining
When parking in wrong path, parking, because occur the torque as caused by vehicle weight park gear 10 thus be detached from boundary park place due to
Rotated, then sliding jump clamping groove face 21b-1, the 22b-1 of the protrusion 12 that park and stepped surface and with step difference groove face 21b-
2,22b-2 contact and it is restrained.
Therefore, rise and the above-head with pawl 20 of parking described in while pawl 20 of parking is in part rotation
Sense part 30-2 contact when, sense part 30-2 perception clamping protrusion 21,22 and park protrusion 12 between interval a, b become
It is dynamic, thus to control unit output and the damaged relevant perceptual signal of pawl 20 of parking.
Therefore, the present invention make to park the preparation property of pawl 20 clamping protrusion 21,22 and meanwhile operate, and with two tooth form knots
Structure is constituted by the clamping protrusion 21,22 of the pawl 20 of parking of the park constraint of gear 10 or the solution system, so as in dress of parking
It sets and improves restraining force when parking, improve pawl 20 of parking and the fastening stability for gear 10 of parking is felt when tilting path-chromatic number
Know the constrained to each clamping protrusion 21,22 of the pawl 20 of parking constrained by the slot 11 of parking for gear 10 of parking and produces rapidly
Raw caution signal relevant to 21,22 breakage of clamping protrusion, so as to improve fastening of the pawl 20 to gear 10 of parking of parking
Stability.
The preferred embodiment of the present invention is illustrated above, but the present invention is not limited to the records of the embodiment, only
The record for not departing from claims of the present invention is deformed by the multiplicity that those skilled in the art carry out
Implementation should be also interpreted as belonging in protection scope of the present invention.
Claims (8)
1. a kind of electric automobile gear device parking apparatus, in the electric automobile gear device parking apparatus, by by manipulating
It parks caused by gear lever the operating of pawl, the pawl of parking can be parked gear constraint or solution system, which is characterized in that
By the gear of parking park park described in slot constraint or solution system pawl clamping protrusion constitute it is a pair of and by two
Tooth-shape structure is formed, wherein
The opposed facing medial surface of each clamping protrusion is from the side of the corresponding protrusion of parking, between keeping setting
It separates to be formed every the mode of (a, b), and
Each clamping protrusion it is mutual back to lateral surface so that between the corresponding side parked in protrusion
It is formed every the mode more relatively small than the setting interval (a, b).
2. electric automobile gear device parking apparatus according to claim 1, which is characterized in that
It is provided with sense part, the sense part perceives the opposed facing medial surface of the clamping protrusion and corresponds to the inside
The variation at the setting interval (a, b) of the side of the protrusion of parking in face.
3. electric automobile gear device parking apparatus according to claim 1, which is characterized in that
In parking, parking on tilting road, because of torque caused by occurring by vehicle weight, load is to constraining in described park in slot
The direction of clamping protrusion effect of the pawl of parking determined by the inclined direction of vehicle, and
Clamping protrusion of the separation fluctuation from load to the pawl of parking between the clamping protrusion and the slot of parking
The direction of effect determines.
4. electric automobile gear device parking apparatus according to claim 2, which is characterized in that
The sense part perceives the variation at the interval between the clamping protrusion and the slot of parking, when any of described interval
Interval increases, and when remaining one interval reduces, is judged as that interval reduces the clamping bulging damage on side opposite.
5. electric automobile gear device parking apparatus according to claim 2, which is characterized in that
The sense part is by being set to the contact sensor of the opposed facing medial surface of each clamping protrusion of the pawl of parking
It constitutes.
6. electric automobile gear device parking apparatus according to claim 1, which is characterized in that
The different step difference of depth is formed on the opposed facing medial surface of each clamping protrusion of the pawl of parking
Groove portion, wherein
It is formed with clamping groove face, depth is deep and contacts under state of normally parking with the side for parking protrusion, and is formed
There is a step difference groove face, depth is relatively more shallow than the clamping groove face and from the clamping groove face along inclined stepped surface is in
Existing step difference, and
Have sense part, in parking, parking on tilting road, tooth of parking described in due to the torque as caused by vehicle weight occurs
Improper the parking under state of wheel rotation, when the protrusion of parking is contacted with the step difference groove face, the pawl of parking
Rise and is contacted with the sense part.
7. a kind of method for diagnosing faults of automotive transmission parking apparatus characterized by comprising
In parking, parking on tilting road, because of torque caused by occurring by vehicle weight, load is to constraining in the pool parked in slot
The direction of the clamping protrusion effect of vehicle pawl is determined by the inclined direction of vehicle；And
The constrained of pawl of parking described in be constrained in the slot of parking changes and meets the failure of the parking apparatus
When testing conditions, such case is alerted to driver.
8. the method for diagnosing faults of automotive transmission parking apparatus according to claim 7, which is characterized in that
The fault detection condition of the parking apparatus be the clamping protrusion of the pawl of parking opposed facing medial surface with it is right
The variation at the interval of the side of the protrusion of parking of medial surface described in Ying Yu.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170176164A KR101996297B1 (en) | 2017-12-20 | 2017-12-20 | Parking apparatus for transmission apparatus of electric vehicle and method for fault detecting thereof |
| KR10-2017-0176164 | 2017-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109944939A true CN109944939A (en) | 2019-06-28 |
Family
ID=67006170
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810164254.5A Pending CN109944939A (en) | 2017-12-20 | 2018-02-27 | Electric automobile gear device parking apparatus and its method for diagnosing faults |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101996297B1 (en) |
| CN (1) | CN109944939A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111350819A (en) * | 2020-03-17 | 2020-06-30 | 浩夫尔动力总成（上海）有限公司 | Parking mechanism of automobile transmission |
| CN113734118A (en) * | 2021-11-08 | 2021-12-03 | 杭州非古科技有限公司 | New energy automobile parking structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111350819A (en) * | 2020-03-17 | 2020-06-30 | 浩夫尔动力总成（上海）有限公司 | Parking mechanism of automobile transmission |
| CN113734118A (en) * | 2021-11-08 | 2021-12-03 | 杭州非古科技有限公司 | New energy automobile parking structure |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190074645A (en) | 2019-06-28 |
| KR101996297B1 (en) | 2019-07-04 |
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