CN103062396B - A kind of halting mechanism being applied to AMT variator - Google Patents
A kind of halting mechanism being applied to AMT variator Download PDFInfo
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- CN103062396B CN103062396B CN201210591266.9A CN201210591266A CN103062396B CN 103062396 B CN103062396 B CN 103062396B CN 201210591266 A CN201210591266 A CN 201210591266A CN 103062396 B CN103062396 B CN 103062396B
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Abstract
A kind of halting mechanism being applied to AMT variator, including transmission control unit TCU, P shelves sensor and P shelves mechanical actuating mechanism, described P shelves mechanical actuating mechanism includes the parking motor being located at outside mission case, is located at the drive mechanism in transmission case body, parking cam, parking ratchet wheel and park pawl.The present invention is by increasing a set of P shelves halting mechanism on tradition AMT variator, in TCU control unit, increase P shelves control and driver element, realize the P shelves of AMT variator to park function, this P shelves halting mechanism simple in construction, easily fabricated, low cost, easy to control, the parking realizing AMT variator on AMT variator can be applied on a large scale.
Description
Technical field
The present invention relates to the position control mechanism of variator, on AMT variator, specifically increase P shelves halting mechanism, real
Existing AMT variator P shelves parking function.
Background technology
Automatic transmission is easy to operate, the great convenience brought to the driving of people, and AMT automatic transmission is in tradition
Increasing corresponding actuator on the basis of manual transmission and control unit realizes fluid drive, AMT variator has hands
The transmission efficiency that dynamic variator is high, good dynamic economics, low cost, also there is the easy to operate of automatic transmission simultaneously
Property.
Owing to the gear shift of selecting of existing AMT is to signal to TCU by electronic gear shifter, control the dynamic of motor etc. by TCU
Select gear shift as realization, there is no the Gear shift operation mechanism of drag-line as AT, CVT, DCT, due to the limit of this structure of AMT
System, existing AMT only realizes parking by parking brake parking when, does not has P shelves parking function.
Summary of the invention
Limiting for AMT this body structure of variator, do not have the functional characteristics of P shelves parking, the present invention provides a set of and is applied to
The halting mechanism of AMT variator and control method, realize P shelves parking by P shelves mechanical actuating mechanism, electronic control unit.
Technical scheme is as follows:
A kind of halting mechanism being applied to AMT variator, including transmission control unit TCU, P shelves sensor and P shelves machine
Tool actuator.Described P shelves mechanical actuating mechanism includes the parking motor being located at outside mission case, is located at mission case
Interior drive mechanism, parking cam, parking ratchet wheel and park pawl.
Described drive mechanism is made up of a secondary worm and gear assembly, a gear and a screw rod；Described worm and gear group
The worm screw of part is connected with parking motor, and the rotation of motor is passed to worm gear by worm screw；On the worm-wheel shaft of described worm and gear assembly
Coaxially being equipped with described gear, described gear engages with described screw rod, drives screw rod to move up and down；
Parking cam is fixed in the upper end of described screw rod, moves up and down with screw rod, parking cam and park pawl one end
By face kinematic pair against, before by the effect of face kinematic pair the up and down motion of parking cam is changed into the level of park pawl
Rear swing；
The other end ratchet of described park pawl and the teeth groove corresponding matching of parking ratchet wheel excircle on transmission shaft, middle
It is connected with mission case by park pawl pin, is placed in transmission case body, detent pin is cased with a park pawl and returns
Position spring, park pawl return spring one end is located by connecting in park pawl, the other end is located by connecting on mission case for this
Cylindrical hole in；
One end of described worm-wheel shaft is stretched out mission case and is connected with P shelves sensor, by P shelves sensor test snail
The angle that wheel turns over, and pass to transmission control unit TCU by the signal of telecommunication, it is judged that the position of P shelves cam, thus determine
When parking motor is sent working signal, it is achieved the control of P shelves.
Described transmission control unit TCU built-in P shelves control module, drives port to connect parking motor by one, real
The control of existing P shelves parking.
Further, the P shelves control method being applied to AMT variator of above-mentioned halting mechanism is as follows:
1. .P shelves start electromotor: after key switch powers on, TCU detects change by the P shelves sensor of halting mechanism
Speed device actual-gear is at P shelves, and electromotor is not actuated, it is determined that vehicle is to start engine condition at P shelves；
TCU detection brake signal and P shelves signal are the most effective, if there being an invalidating signal, variator keeps current shelves
Position, if signal is effective, TCU detects variator actual-gear, if not at N shelves, then performs to hang the instruction of N shelves, until detecting
Actual-gear is after N shelves, and clutch separation, startup motor works, and selector is exited P shelves, releases parking shape by engine start
State, waits next shift command；
2.. vehicle powers on or under engine start state, is linked into P shelves: after key switch powers on, and TCU detects gearshift
Device has P shelves signal, and detects that variator is not linked into P shelves by P shelves sensor, then judge it is now to power at vehicle or start
Under machine starting state, P shelves state should be linked into；
The most effective by TCU detection brake signal and P shelves signal, if above-mentioned signal has an invalidating signal, then keep working as
Front gear, if signal is effective, then whether detection variator actual-gear is at N shelves, does not performs to hang the action of N shelves at N shelves, until
Detect actual-gear after N, TCU drives halting mechanism to perform to hang the action of P shelves, is linked into electricity, clutch under key switch after P shelves
Device closes.
The present invention, by adding a set of P shelves halting mechanism on tradition AMT variator, increases the P in TCU control unit
Shelves control and driver element, it is achieved that the P shelves of AMT variator are parked function, this P shelves halting mechanism simple in construction, it is easy to manufacture,
Low cost, easy to control, the parking realizing AMT variator on AMT variator can be applied on a large scale.
Accompanying drawing explanation
The P shelves mechanical actuating mechanism of Fig. 1 translator；
Fig. 2 illustrates the knob selector adding P shelves；
Fig. 3 illustrates the key components and parts schematic diagram of actuator；
Fig. 4 illustrates P shelves full-vehicle control graph of a relation；
Fig. 5,6 illustrate hang P shelves logical flow chart；
In figure: 011 angular transducer, 010 parking ratchet wheel, 009 detent pin, 008 ratchet torsion spring, 007 park pawl, 006
Parking cam, 005 screw rod, 004 gear, 003 worm gear, 002 worm screw, 001 parking motor.
Detailed description of the invention
The structure of the present invention is further illustrated below in conjunction with accompanying drawing:
As it is shown in figure 1, the P shelves mechanical actuating mechanism that the present invention provides, including the parking electricity being located at outside mission case
Machine 001, the worm and gear assembly being located in transmission case body, gear 004, screw rod 005, parking ratchet wheel 010 and park pawl
007。
Described worm and gear assembly is by worm screw 002 and is located at worm gear 003 on worm-wheel shaft and forms, and change is stretched out in one end of worm-wheel shaft
Speed device casing is also connected with P shelves sensor 011, the angle turned over by P shelves sensor test worm gear, and is passed by the signal of telecommunication
Pass TCU, it is judged that the position of P shelves cam, thus determine when parking motor is sent working signal, realize P shelves successively
Control.Parking motor is connected with worm screw, and worm and wheel engages.
It is coaxially installed with gear 004 on described worm shaft, engages with screw rod 005.Screw rod 005 upper end is integrally equipped with parking
Cam 006, by gear driven screw rod, thus drives the up and down motion of parking cam, parking cam and park pawl 007 one end
By face kinematic pair against, before by the effect of face kinematic pair the up and down motion of parking cam is changed into the level of park pawl
Rear swing.
The other end ratchet of described park pawl 007 is corresponding with the teeth groove of parking ratchet wheel on transmission shaft 010 excircle joins
Close.
Described park pawl 007 is connected with mission case by park pawl pin 009, is placed in transmission case body,
Park pawl pin 009 two ends coordinate with the pin-and-hole on casing；Detent pin 009 is cased with a park pawl return spring 008, should
Park pawl return spring 008 one end is located by connecting in park pawl 007, and the other end is located by connecting on the circle of mission case
In post holes.
The working method of this actuator: parking motor 001 drives worm screw 002, and then drives worm gear 003, through worm gear
The effect of axle and gear 004 drives screw rod 005, thus drives parking cam 006 to rotate, by parking cam 006 and parking spine
Pawl 007 end thereof contacts drives moving back and forth of park pawl, and park pawl and parking ratchet wheel 010 act on, it is achieved parking function.
Being illustrated in figure 2 the selector of knob, whole selector is had the gears such as P, R, N, D, is triggered by rotary knob
Corresponding gear.Knob selector only could perform to rotate gear shift action after knob rises, when need not gear shift,
Knob is fallen, and knob selector can need rationally increase and decrease gear and function key according to gear and function.
It is illustrated in figure 3 parking cam 006 and park pawl 007 is moved and stress relation, by cam and ratchet one end
Contact, and torsion spring 008 effect realizes being linked into and departing from of P shelves.
It is illustrated in figure 4 the graph of a relation of whole P shelves, first knob selector input P shelves request, transmission control unit pair
Changing to P shelves condition judge, when condition meets: speed=0km/h, brake signal is effective, and selector, in the case of P shelves, is held
Row is linked into the request of P shelves, and transmission control unit input driving request drives motor to parking control unit, parking control unit
Performing gear shift request, car load instrument obtains current gear information from transmission control unit simultaneously；It is unsatisfactory for hanging if TCU detects
Enter the condition of P shelves, do not perform to be linked into P shelves action, keep current gear.
Fig. 5 and Fig. 6 show AMT variator P shelves parking and controls logical flow chart.
As it is shown in figure 5, in the case of being linked into P shelves, start electromotor.First key switch powers on, TCU detection brake letter
Number, P file location signal whether effective, if being unsatisfactory for above-mentioned condition, variator can keep current gear, if condition meets
TCU can detect variator actual-gear, if not at N shelves, then performs to hang the instruction of N shelves, until detecting that actual-gear is at N shelves
After, clutch separation, start motor work, engine start, wait next action command.
As shown in Figure 6, vehicle powers on or under starting state, is linked into P shelves.First key switch powers on, TCU detection brake letter
Number, P file location signal, above-mentioned signal has an invalidating signal, then keeps current gear, if signal is effective, then detects speed change
Whether device actual-gear at N shelves, does not performs to hang the action of N shelves at N shelves, until detect actual-gear after N, TCU controls electricity
Machine performs to hang the action of P shelves, hangs such as electricity under key switch after P shelves, and clutch closes.
Claims (1)
1. it is applied to a halting mechanism for AMT variator, including transmission control unit TCU, P shelves sensor and P shelves machinery
Actuator；It is characterized in that: described P shelves mechanical actuating mechanism includes the parking motor being located at outside mission case, is located at
Drive mechanism, parking cam, parking ratchet wheel and park pawl in transmission case body；
Described drive mechanism is made up of a secondary worm and gear assembly, a gear and a screw rod；Described worm and gear assembly
Worm screw is connected with parking motor, and the rotation of motor is passed to worm gear by worm screw；On the worm-wheel shaft of described worm and gear assembly coaxially
Being equipped with described gear, described gear engages with described screw rod, drives screw rod to move up and down；
Parking cam is fixed in the upper end of described screw rod, moves up and down with screw rod, and parking cam passes through with park pawl one end
Face kinematic pair against, put before and after by the effect of face kinematic pair the up and down motion of parking cam is changed into the level of park pawl
Dynamic；
The teeth groove corresponding matching of the parking ratchet wheel excircle on the other end ratchet of described park pawl and transmission shaft, parking spine
It is connected with mission case by park pawl pin in the middle of pawl, is placed in transmission case body, detent pin is cased with a parking
Ratchet return spring, this park pawl return spring one end is located by connecting in park pawl, and the other end is located by connecting on speed change
In the cylindrical hole of device casing；
One end of described worm-wheel shaft is stretched out mission case and is connected with P shelves sensor, is turned by P shelves sensor test worm gear
The angle crossed, and pass to transmission control unit TCU by the signal of telecommunication, it is judged that the position of P shelves cam, thus when determine
Parking motor is sent working signal, it is achieved the control of P shelves；
Described transmission control unit TCU built-in P shelves control module, drives port to connect parking motor by one, it is achieved P shelves
The control of parking；
Control method is as follows:
1. .P shelves start electromotor: after key switch powers on, TCU detects variator by the P shelves sensor of halting mechanism
Actual-gear is at P shelves, and electromotor is not actuated, it is determined that vehicle is to start engine condition at P shelves；
TCU detection brake signal and P shelves signal are the most effective, if there being an invalidating signal, variator keeps current gear, as
Really signal is effective, and TCU detects variator actual-gear, if not at N shelves, then performs to hang the instruction of N shelves, until actual shelves being detected
Position after N shelves, clutch separation, start motor work, engine start, selector exited P shelves, release parked state, etc.
Treat next shift command；
2.. vehicle powers on or under engine start state, is linked into P shelves: after key switch powers on, and TCU detects that selector is at P
Shelves, and detect that variator is not linked into P shelves by P shelves sensor, then judge it is now to power on or engine start shape at vehicle
Under state, P shelves state should be linked into；
The most effective by TCU detection brake signal and P shelves signal, if brake signal and P shelves signal have an invalidating signal, then protect
Holding current gear, if signal is effective, then whether detection variator actual-gear is at N shelves, does not performs to hang the action of N shelves at N shelves,
Until detect actual-gear after N shelves, TCU drives halting mechanism to perform to hang the action of P shelves, is linked into after P shelves under key switch
Electricity, clutch closes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591266.9A CN103062396B (en) | 2012-12-29 | 2012-12-29 | A kind of halting mechanism being applied to AMT variator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591266.9A CN103062396B (en) | 2012-12-29 | 2012-12-29 | A kind of halting mechanism being applied to AMT variator |
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| CN103062396A CN103062396A (en) | 2013-04-24 |
| CN103062396B true CN103062396B (en) | 2016-12-28 |
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| CN201210591266.9A Active CN103062396B (en) | 2012-12-29 | 2012-12-29 | A kind of halting mechanism being applied to AMT variator |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103697157A (en) * | 2013-12-23 | 2014-04-02 | 盛瑞传动股份有限公司 | Parking braking pawl of automatic gearbox |
| CN103759001A (en) * | 2014-02-06 | 2014-04-30 | 北京阳铭诚科技有限责任公司 | Electric vehicle parking device |
| CN104149612B (en) * | 2014-04-30 | 2016-08-31 | 宁波上中下自动变速器有限公司 | Double-clutch speed changer electronic parking mechanism |
| JP6274010B2 (en) * | 2014-05-21 | 2018-02-07 | トヨタ自動車株式会社 | Vehicle power transmission device |
| CN106481814B (en) * | 2015-09-02 | 2018-03-16 | 广州汽车集团股份有限公司 | Electric automobile gear device and its halting mechanism |
| IT201600082166A1 (en) * | 2016-08-04 | 2018-02-04 | Oerlikon Graziano Spa | Actuator assembly for controlling the angular position of a control member, particularly for vehicle transmission. |
| CN106641243A (en) * | 2017-02-28 | 2017-05-10 | 南京越博动力系统股份有限公司 | Auxiliary parking mechanism for automated manual transmission/electric-drive mechanical transmission (AMT/EMT) and parking method of auxiliary parking mechanism |
| CN109130848A (en) * | 2018-10-19 | 2019-01-04 | 赣州经纬科技股份有限公司 | A kind of two grades of speed change electric drive assemblies of new-energy automobile |
| CN112128370A (en) * | 2019-06-25 | 2020-12-25 | 浙江吉智新能源汽车科技有限公司 | Reduction gear parking mechanism and vehicle |
| CN113043852A (en) * | 2021-04-02 | 2021-06-29 | 联合汽车电子有限公司 | Electronic parking system, vehicle control system and vehicle |
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