CN110131410A - Shift fork position sensor structure - Google Patents
Shift fork position sensor structure Download PDFInfo
- Publication number
- CN110131410A CN110131410A CN201910528582.3A CN201910528582A CN110131410A CN 110131410 A CN110131410 A CN 110131410A CN 201910528582 A CN201910528582 A CN 201910528582A CN 110131410 A CN110131410 A CN 110131410A
- Authority
- CN
- China
- Prior art keywords
- shift fork
- magnet
- piston shaft
- position sensor
- sensor structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
Abstract
The present invention relates to a kind of sensor structures of shift fork position in the position sensor of automobile more particularly to detection gearbox.A kind of shift fork position sensor structure, including the multiple shift forks being located in gearbox, wherein at least two shift fork is one group, piston shaft is connected in one end of each shift fork, magnet is installed in piston shaft, piston shaft is moved axially with shift fork, the corresponding control panel of every group of piston shaft, is equipped with Hall chip corresponding with magnet in control panel.The present invention provides a kind of structure is simple, high reliablity is at low cost, and the space accounted for is small, and component is easy the shift fork position sensor structure of arrangement；Solve that space accounting existing in the prior art is big, and structure is complicated, technical problem at high cost.
Description
Technical field
The present invention relates to a kind of sensor knots of shift fork position in the position sensor of automobile more particularly to detection gearbox
Structure.
Background technique
In modern society, automobile has become one of the walking-replacing tool of public first choice.Automobile can substantially be divided into automatic catch
With two kinds of manual gear.Certainly it scruples now with many automobiles to driving experience, also there is auto-manual.Change is installed in automobile
Fast device realizes the switching of different gears by speed changer.
Gearshift fork is in the transmission for pushing synchronizer gear sleeve to be allowed to engage with change gear and separate realization
The component of transmission gear variation, the magnetic assembly of shift fork is that the portion in magnetic field signal source is fixed on shift fork and provided in speed changer
Part, and position sensor is to export for monitoring shift fork magnet signal in speed changer and carry out the component of signal conversion.
In order to allow control system of speed variator to monitor the position of shift fork, currently used method is on case of transmission
The position signal of shift fork is supplied to control system by position sensor by installation site sensor.
Concrete scheme is one magnet of installation on shift fork, is moved together by magnet and shift fork, and position sensor is changed
The magnetic field signal of position realizes monitoring of the control system to shift fork position.In order to incude position sensor accurately
The magnetic field signal generated to magnet connects between process, magnet and shift fork that magnet magnetizes other than the raw material that magnet itself uses
Binding structure etc. can generate direct influence to the quality of magnet signal.
Such as Chinese patent: " shift fork position sensor magnet fixed mechanism (CN201720025218.1) ", including magnet are total
At and magnet holder；The magnetic assembly is equipped with guide groove, is correspondingly provided with concave shape support plate at the top of the magnet holder,
Magnetic assembly is installed in the concave shape support plate of magnet holder by guide groove plug-in.But it is asked existing for this structure
Topic is exactly, and since shift fork quantity is more, and distance is farther out, thus needs to be respectively mounted magnet, Er Qiexu on each shift fork
The sensor of multiple separate types is made, it is at high cost, and after sensor degradation, it is not easy to check.
Summary of the invention
The present invention provides a kind of structure is simple, high reliablity is at low cost, and the space accounted for is small, and component is easy arrangement
Shift fork position sensor structure；Solve that space accounting existing in the prior art is big, and structure is complicated, technology at high cost is asked
Topic.
Above-mentioned technical problem of the invention is solved by following technical proposals: a kind of shift fork position sensor structure,
Including the multiple shift forks being located in gearbox, wherein at least two shift fork is one group, is connected with piston in one end of each shift fork
Axis is equipped with magnet in piston shaft, and piston shaft is moved axially with shift fork, the corresponding control panel of every group of piston shaft, control panel
It is interior to be equipped with Hall chip corresponding with magnet.Be the movement of piston shaft by the conversion of motion of shift fork, the mobile drive of piston shaft its
Interior magnet displacement changes periphery changes of magnetic field with this, incudes for Hall chip, convert linear signal and export to TCU,
Complete the reading of its piston axial displacement and position.Change the structure that original magnet is mounted on shift fork, magnet is installed to work
It fills in axis, the distance between piston shaft can be designed and adjust, while can be multiple suddenly using arrangement in a circuit board
That sensor, rationally utilizes space, by the arrangement that each component is compact, improves space utilization rate, reduces costs, and control
Precision processed is high, and board design investigation is convenient.
Preferably, two shift forks are the corresponding piston shaft of two shift forks in one group, one group there are four the shift forks
It is parallel to each other and the arrangement that misplaces, the control panel is located between two piston shafts.In two piston shafts in same group
One cylinder-shaped magnet is respectively installed, the distance between center line of two magnet is not less than 37mm, the upper surface of two magnet
The distance between be not less than 14mm.Guarantee that the magnetic field strength of two magnet will not influence each other, guarantees the induction of Hall sensor
Precision calculates influence of two magnet in the staggeredly magnetic field in space, to chip induction point using MAXWELL magnetic simulation software.Drop
Low mutual interference.
Preferably, one end of the shift fork is equipped with open slot, card slot, the end of shift fork are equipped on the piston shaft
Portion is connected in the card slot of piston shaft.Shift fork and piston shaft are cooperated by the cooperation of card slot and open slot, structure is simple, convenient
Disassembly and connection between the two, and piston shaft can also be driven and is axially moved by the displacement of shift fork axial direction.
Preferably, each piston shaft is in the same plane, the control panel, which is higher than locating for piston shaft, is put down
Face, the height of the shift fork are greater than the height of plane locating for control panel.Horizontal and vertical space is rationally utilized, space is improved
Utilization rate.
Preferably, distance of the Hall chip apart from magnet is 8 ~ 15mm.Guaranteeing enough magnetic field strengths
Under the premise of, more reasonable by what is arranged between chip position and remaining part, space utilization rate is high.
Preferably, offering blind hole in the piston shaft, the magnet is installed to sealant pouring and sealing in piston shaft.Side
Just it processes, simple process.
Preferably, the relative position for the corresponding each magnet of each shift fork being located in same group is according to Hall chip
The magnetic field strength of induction designs, after the first magnetic field strength setting of corresponding first magnet of first Hall chip, in addition same group
Magnetic field strength of remaining the interior magnet in the first Hall chip position is less than the first magnetic field strength of setting.To guarantee each magnet
Between will not influence each other, guarantee detection precision.Such as first magnet position determine after, around the first magnet at 12mm
Magnetic field strength be 20mT, the first Hall chip is in this magnetic field range, and 12mm is less than with the magnetic field strength of external position
20mT, then according to magnetic simulation software design, it can be seen that influence of remaining magnet for the first Hall chip can neglect
Slightly, the position of remaining magnet is designed with this, guarantees that the multiple magnet being located in same group will not interfere with each other.
Therefore, shift fork position sensor structure of the invention has following advantages: structure is simple, and two shift forks are classified as one
Group, the movement of shift fork drive piston shaft movement, and two piston shafts share a control panel, and at low cost, controlling is good；Two pistons
Axis is parallel and dislocation is arranged, installs control panel using the gap between two piston shafts, space accounting is small, improves the convenience of installation
Property.
Detailed description of the invention
Fig. 1 is the perspective view of shift fork position sensor structure of the invention.
Fig. 2 is that Fig. 1 removes the perspective view after shift fork.
Fig. 3 is the top view that Fig. 1 gets rid of shift fork and shell.
Fig. 4 is the schematic diagram of the shift fork in Fig. 1.
Fig. 5 is the schematic diagram of the piston shaft in Fig. 1.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solution to invention is described in further detail.
Embodiment:
As shown in Fig. 1 and 2 and 3 and 4, a kind of shift fork position sensor structure, including gear box casing 4, in gear box casing 4
For arrangement there are four shift fork 3, two shift forks 3 are one group, and one group of shift fork 3 is located at the left side of gear box casing 4, another group shift fork 3
In the right side of gear box casing 4.
Integrally formed with an arc-shaped open slot 6, the lower section of shift fork 3 is corresponding with one for the lower end of each shift fork 3
Piston shaft 2, the both ends of piston shaft 2 are mounted on the axle bed 1 on gear box casing.Annular is offered at the middle part of piston shaft 2
Card slot 8, shift fork 3 and the connection of piston shaft 2 are attached by open slot 6 and the cooperation of card slot 8, and shift fork 3 is along piston shaft 2
Axial-movement drives piston shaft 2 to be axially moved.A blind hole is offered in wherein one end of piston shaft 2, is equipped in blind hole
After magnet 7, then magnet is sealed in piston shaft 2 by encapsulating, thus the movement of piston shaft, band moving magnet 7 is moved, and magnetic field becomes
Change.
Two piston shafts 2 in one group are parallel to each other and the arrangement that misplaces, the center line of the magnet 7 in piston shaft 2 it
Between distance be not less than 37mm, the distance between upper surface of two magnet 7 be not less than 14mm.To guarantee two magnet 7 it
Between will not influence each other.
One circuit board 5 is installed, there are two Halls to pass for installation on circuit board 5 in the space between two piston shafts 2
Sensor, each Hall sensor correspond to a magnet in one group.The variation of Hall sensor induced magnetic field, so that it is determined that piston
The move distance of axis has the motion profile for having determined that shift fork.Distance of the circuit board apart from piston shaft is 10mm.
The movement of shift fork drives piston shaft movement, and the magnet in guide piston shaft is displaced.And shift fork position sensing
Device, that is, induced magnet changes of magnetic field converts linear signal and exports to TCU, completes the reading of its piston axial displacement and position
It takes.
Claims (8)
1. a kind of shift fork position sensor structure, it is characterised in that: including be located at gearbox in multiple shift forks, wherein at least two
A shift fork is one group, is connected with piston shaft in one end of each shift fork, magnet is equipped in piston shaft, piston shaft is with shift fork axle
To movement, the corresponding control panel of every group of piston shaft, control panel is interior to be equipped with Hall chip corresponding with magnet.
2. shift fork position sensor structure according to claim 1, it is characterised in that: there are four the shift forks, and two
Shift fork is that the corresponding piston shaft of two shift forks in one group, one group is parallel to each other and the arrangement that misplaces, the control panel are located at two
Between a piston shaft.
3. shift fork position sensor structure according to claim 2, it is characterised in that: two pistons in same group
One cylinder-shaped magnet is respectively installed in axis, the distance between center line of two magnet is not less than 37mm, two magnet it is upper
The distance between end face is not less than 14mm.
4. shift fork position sensor structure according to claim 1 or 2 or 3, it is characterised in that: one end of the shift fork
Equipped with open slot, card slot is equipped on the piston shaft, the end of shift fork is connected in the card slot of piston shaft.
5. shift fork position sensor structure according to claim 1 or 2 or 3, it is characterised in that: each piston axle position
In in same plane, the control panel is higher than plane locating for piston shaft, and the height of the shift fork is greater than locating for control panel
The height of plane.
6. shift fork position sensor structure according to claim 1 or 2 or 3, it is characterised in that: the Hall chip away from
It is 8 ~ 15mm with a distance from magnet.
7. shift fork position sensor structure according to claim 1 or 2 or 3, it is characterised in that: opened in the piston shaft
Equipped with blind hole, the magnet is installed to sealant pouring and sealing in piston shaft.
8. shift fork position sensor structure according to claim 1 or 2 or 3, it is characterised in that: each in same group
The relative position of the corresponding each magnet of a shift fork is the magnetic field strength design according to Hall chip induction, first Hall chip
After the first magnetic field strength setting of corresponding first magnet, the other magnetic with remaining magnet in group in the first Hall chip position
Field intensity is less than the first magnetic field strength of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528582.3A CN110131410A (en) | 2019-06-18 | 2019-06-18 | Shift fork position sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528582.3A CN110131410A (en) | 2019-06-18 | 2019-06-18 | Shift fork position sensor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110131410A true CN110131410A (en) | 2019-08-16 |
Family
ID=67578053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910528582.3A Pending CN110131410A (en) | 2019-06-18 | 2019-06-18 | Shift fork position sensor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110131410A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245850A (en) * | 2008-03-20 | 2008-08-20 | 重庆大学 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
| CN202001600U (en) * | 2010-12-21 | 2011-10-05 | 上海汽车集团股份有限公司 | Double-clutch automatic transmission gear shift system |
| CN105443745A (en) * | 2014-07-29 | 2016-03-30 | 广州汽车集团股份有限公司 | Gear shifting executing mechanism of dual clutch transmission |
| CN208764303U (en) * | 2018-09-21 | 2019-04-19 | 海马汽车有限公司 | A kind of selector fork assembly and speed changer |
| CN210265822U (en) * | 2019-06-18 | 2020-04-07 | 浙江沃得尔科技股份有限公司 | Shift fork position sensor structure |
-
2019
- 2019-06-18 CN CN201910528582.3A patent/CN110131410A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245850A (en) * | 2008-03-20 | 2008-08-20 | 重庆大学 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
| CN202001600U (en) * | 2010-12-21 | 2011-10-05 | 上海汽车集团股份有限公司 | Double-clutch automatic transmission gear shift system |
| CN105443745A (en) * | 2014-07-29 | 2016-03-30 | 广州汽车集团股份有限公司 | Gear shifting executing mechanism of dual clutch transmission |
| CN208764303U (en) * | 2018-09-21 | 2019-04-19 | 海马汽车有限公司 | A kind of selector fork assembly and speed changer |
| CN210265822U (en) * | 2019-06-18 | 2020-04-07 | 浙江沃得尔科技股份有限公司 | Shift fork position sensor structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100371630C (en) | Automobile | |
| CN102980767A (en) | Test measurement device for dynamic transmission efficiency of actuator of AMT clutch | |
| CN105065658A (en) | Slider oscillating bar gear shifting mechanism for electric vehicle two-gear automatic transmission | |
| CN105065635A (en) | Main reducer assembly with automatic gear shifting function | |
| CN101353016A (en) | Automatic gear shift apparatus for vehicle speed variation | |
| CN110131410A (en) | Shift fork position sensor structure | |
| CN102588581B (en) | Gear-changing control device of automobile | |
| CN208153713U (en) | A kind of shift-selecting and changing actuating mechanism | |
| CN210265822U (en) | Shift fork position sensor structure | |
| CN110985666A (en) | Electric gear selecting and shifting actuating mechanism | |
| CN205534192U (en) | Car keeps off position sensor | |
| CN106704582A (en) | Automatic operation mechanism of two-gear mechanical transmission for electric vehicle | |
| CN205047816U (en) | High accuracy many grades of main reducer that shift | |
| CN201283792Y (en) | Automatic gear shift apparatus for vehicle speed variation | |
| CN101711318A (en) | Manually shiftable multistep transmission for motor vehicles | |
| CN105082995A (en) | Automatic gear shifting rear axle assembly | |
| CN205371602U (en) | Double clutch automatic gearbox's shift fork assembly of shifting | |
| CN101764464A (en) | Motor with electrically slipping rotor spindle and purpose | |
| CN205149525U (en) | Motor of electric vehicle of integrated automatic speed changing owner's speed reduction and differential | |
| CN103968057A (en) | Automatic transmission gear shifting mechanism | |
| CN204985685U (en) | Electric automobile keeps off mechanical transmission automatic control mechanism with two | |
| CN208443564U (en) | A kind of endurance test rack for AMT shifting operating mechanism | |
| CN207534293U (en) | Shift fork assembling fixture | |
| CN105889466B (en) | A kind of matched ten two speed gear of pure electric vehicle dynamical system | |
| CN205808709U (en) | A kind of shift of transmission pilot system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 318000 1st floor, building 1, No. 818, east section of Kaifa Avenue, Jiaojiang District, Taizhou City, Zhejiang Province Applicant after: Zhejiang Woder Technology Group Co.,Ltd. Address before: 318000 No.1, building 1, No.818, east section of Kaifa Avenue, Jiaojiang District, Taizhou City, Zhejiang Province Applicant before: ZHEJIANG WODELL TECHNOLOGY Co.,Ltd. |