CN106224530B - Speed changer electromechanical executes system and method - Google Patents
Speed changer electromechanical executes system and method Download PDFInfo
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- CN106224530B CN106224530B CN201610833555.3A CN201610833555A CN106224530B CN 106224530 B CN106224530 B CN 106224530B CN 201610833555 A CN201610833555 A CN 201610833555A CN 106224530 B CN106224530 B CN 106224530B
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- hydraulic cylinder
- shift fork
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- main hydraulic
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
-
- 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
- F16H2306/00—Shifting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
A kind of speed changer electromechanical execution system and method, it include: torque output device and the manipulatable end being attached thereto, wherein: torque output device includes the feed screw nut pair that at least one end is equipped with main hydraulic cylinder, successively driving gear pair and nut to rotate by motor is axially moved screw rod and pushes main hydraulic cylinder piston and sub- hydraulic cylinder piston, to realize that the axial displacement of shift fork axle completes shift process.The present invention can be realized shifting automatic control accurately and fast, reliably, safe.
Description
Technical field
The present invention relates to a kind of technology in speed changer field, specifically a kind of speed changer electromechanical execute system and
Method.
Background technique
Existing gear shifting actuating mechanism is above used in manual transmission, stepless transmission, double-clutch speed changer etc. mostly,
The main hydraulic system using compositions such as oil pump, solenoid valve, valve body, oil circuit, oil cylinder, pistons, directly and shift fork with oil cylinder, piston
It contacts with shift fork axle or is contacted with shifting axis, or is associated with the wheeled steel of stepless transmission, chain wheel, realize that shift is dynamic
Make；Or use electricity Qu executing agency: pushing shift fork to realize shift by motor, mechanical reduction gear, mechanical movement switching mechanism
Movement.Wherein manual transmission not only requires driver's operating technology high, but also driver's manipulation strength is big, shift noise
Greatly, shift irregularity, long-duration driving are easy fatigue, this brings certain influence to formation safety and comfort.And it is stepless
Speed change, the shift executing agency low efficiency of speed changer, mechanism is complicated, manufacture difficulty is big, only adapts to the application of small displacement passenger car.
In contrast, the hydraulic actuating mechanism of dual-clutch transmission (DCT) and automatic mechanical transmission (AMT) is hydraulic
Loss influences efficiency, and cleannes require harsh, manufacture difficulty height, and structural dimension optimization difficulty is big.And electricity Qu executing agency is more
Electric machine structure shifting stroke limiting system, structure arrange that difficulty is big.
Summary of the invention
The present invention is directed to the blank of the prior art, proposes that a kind of speed changer electromechanical executes system and method, Neng Goushi
Now shifting automatic control accurately and fast, reliably, safe.
The invention is realized by the following technical scheme:
The present invention relates to a kind of speed changer electromechanicals to execute system, comprising: torque output device and is attached thereto
Manipulatable end, in which: torque output device includes the feed screw nut pair that at least one end is equipped with main hydraulic cylinder, and the manipulatable end can be with
It is:
1. it is set to the sub- hydraulic cylinder of more shift fork axles at least one end, or
2. the sub- hydraulic cylinder of separation power-assisted of release yoke structure type clutch, or
The hydraulic cylinder of the hydraulic pressure separating device (CSC) of integrated hydraulic separator 3. (CSC) structure type clutch；
And main hydraulic cylinder is connected with sub- hydraulic cylinder, and gear pair and nut is successively driven to rotate by torque output device
It is axially moved screw rod and pushes main hydraulic cylinder piston and sub- hydraulic cylinder piston, to realize that the axial displacement completion of shift fork axle is changed
Gear process, or realize clutch separation, closed action.
The torque output device is used but is not limited to: motor, internal combustion engine etc. can export the device of driving torque.
Acquisition is further provided in the speed changer electromechanical execution system real-time vehicle condition and to handle in real time, then to
The control system of motor and/or manipulatable end output shifting commands, the control system monitor and diagnose simultaneously unusual service condition and correspondence
Start alarm mechanism.
The real-time vehicle condition includes but is not limited to: the signal and this system of the sendings such as acquisition vehicle CAN, speed changer TCU
The signal of each sensor output.
The shifting commands include but is not limited to: the unlock of electromagnetism pin, the motor rotation, corresponding main hydraulic cylinder of target gear
Piston pushes the position in shift fork axle to designated position, target gear shift fork axle in middle piston displacement, targeted gear seat hydraulic cylinder
Signal, target gear electromagnetism pin are latched sensor feedback in place.
The unusual service condition includes but is not limited to: sensor failure, electromagnetism pin is not in place, shift fork is not in place, torque is defeated
Failure of apparatus, the failure of electromagnetism pin, main hydraulic cylinder clamping stagnation, sub- hydraulic cylinder clamping stagnation etc. out.
It the monitoring and diagnoses it and uses but be not limited to: being compared by threshold method numerical value to judge whether that operating condition is in just
Real-time update is carried out in normal range, by historical data to safe range, passes through online mode real-time update operating condition judgment mode
Deng.
The alarm mechanism includes but is not limited to: sending alarm code to vehicle CAN, makees screen display and audio report by vehicle
It is alert, into " limp-home " operating condition etc..
For the motor using having brush or brshless DC motor, which is equipped with the deceleration in the gear pair actively
Gear.
The rotary angle transmitter being connected with the control system is further preferably provided on the motor shaft.
The feed screw nut pair uses but is not limited to ballscrew nut fitting, which is equipped with the gear
Reduction driven gear in pair.
The reduction driven gear is axially and radially limited by bearing realization, and the nut in feed screw nut pair, which follows, to be subtracted
Fast driven gear rotation, so that the circular motion of reduction driven gear to be converted to the straight-line displacement of screw rod.
The main hydraulic cylinder is preferably two and is respectively arranged at the both ends of feed screw nut, realizes the two-way work of executing agency
It is dynamic.
Further, the sub- hydraulic cylinder is preferably two and is respectively arranged at every shift fork axle (shift fork axle can be
More) both ends fast moved with realizing that shift fork axle is bidirectional balanced.
The shift fork axle can be one or more, depending on transmission gear needs.In every shift fork axle
It is fixed with shift fork, is shifted gears to stir the synchronizer in speed changer.
Gear locking pin seat is further provided in the shift fork axle, each gear locking pin seat is equipped with self-locking hole.
The self-locking hole preferably includes: for two self-locking holes of friction speed gear and for the self-locking of neutral gear
Hole, and different gears is locked by the electromagnetism pin respectively, and make the movement of different shift fork axles non-interference.Described
Electromagnetism pin is realized by shifting commands to be retracted unlock or ejects and be inserted into the locking of shift fork axle self-locking hole.
The electromagnet and corresponding position sensor for monitoring displacement are preferably provided in the shift fork axle, because
The movement of this shift fork axle (electromagnet), which can be perceived by position sensor and generate signal, is sent to control system, by control system
It handles and makes corresponding control instruction (such as: motor operating stops, the unlock of electromagnetism pin or locking etc.).
The piston of the main hydraulic cylinder is equipped with axially eccentric pin hole, and the cylinder body end face of corresponding main hydraulic cylinder, which is equipped with, inserts
Pin, is inserted into pin hole during piston stroke by bolt, plays the role of constraining screw rod rotation.
The present invention relates to a kind of speed changer electromechanicals to execute method, is generated with the torque drive feed screw nut of motor output
Axial displacement pushes main hydraulic cylinder piston and sub- hydraulic cylinder piston, by medium (such as hydraulic oil) push/pull shift fork axle axial displacement,
To realize gear shift operation.
Technical effect
Compared with prior art, the present invention is small in size, components are few, at low cost, flexible, has a wide range of application, and is easy real
Existing modularization, shifting is more accurate, and has the characteristics that good ride comfort, higher efficiency and low energy consumption.In addition, right
In different control parameters such as shifting power or dynamic response characteristic, hydraulic cylinder can be adjusted by changing the electric current of motor
Interior pressure medium or flow, realizes the matching problem between different speed-changer executing mechanisms.
Detailed description of the invention
Fig. 1 is structure of the invention schematic illustration；
Fig. 2 a, Fig. 2 b, Fig. 2 c are control method flow chart of the present invention；
Fig. 3 is single main hydraulic cylinder list hydraulic cylinder schematic diagram in embodiment；
Fig. 4 is single main hydraulic cylinder list hydraulic cylinder schematic diagram in embodiment；
Fig. 5 is double main hydraulic cylinder list hydraulic cylinder schematic diagrames in embodiment；
Fig. 6 is single main hydraulic cylinder Shuangzi hydraulic cylinder schematic diagram in embodiment；
Fig. 7 is double main hydraulic cylinder hydraulic pressure separating device (CSC) hydraulic cylinder schematic diagrames in embodiment；
Fig. 8 is single main hydraulic cylinder hydraulic pressure separating device (CSC) hydraulic cylinder schematic diagram in embodiment；
Fig. 9 is band electromagnetism pin and double main hydraulic cylinder hydraulic pressure separating device (CSC) hydraulic cylinder schematic diagrames of locking pin seat in embodiment；
Figure 10 is band electromagnetism pin and locking pin seat list main hydraulic cylinder hydraulic pressure separating device (CSC) hydraulic cylinder schematic diagram in embodiment；
Figure 11 is the structure of the invention schematic illustration that a repairing pond is configured in embodiment.
In figure: 1 motor (band rotary angle transmitter), 2 deceleration driving gears, 3 reduction driven gears, 4 first bearings, 5 second
Bearing, 6 nuts, 7 screw rods, 8 first main hydraulic cylinders, 9 second main hydraulic cylinders, 10 first main hydraulic cylinder pistons, 11 second masters are hydraulic
The cylinder piston, 12 first piston rotation condition pins, 13 second piston rotation condition pins, 14 first sub- hydraulic cylinders, 15 second sons are hydraulic
Cylinder, 16 first sub- hydraulic cylinder pistons, 17 second sub- hydraulic cylinder pistons, 18 electromagnetism pins, 19 position sensors, 20 position sensing magnetic
Iron, 21 control systems, 22TCU, 23CAN, 24 gear locking pin seats, 25 shift fork axles, 26 shift fork axle rotation condition blocks, 27 first are mended
Oil sump, 28 second repairing ponds, 29 gas vents, 30CSC assembly.
Specific embodiment
As shown in Fig. 1 and Fig. 2 a- Fig. 2 c, the implementation case is related to a kind of speed changer electromechanical execution system, comprising: turns round
Square output device and the manipulatable end being attached thereto and control system, torque output device includes that both ends are equipped with the in the implementation case
One and second main hydraulic cylinder 8,9 feed screw nut, manipulatable end may is that
1. the first and second sub- hydraulic cylinders 14,15 at more 25 both ends of shift fork axle are set to, or
2. the separation booster cylinder of release yoke structure type clutch, or
3. as shown in Figure 7 and Figure 8 without integrated hydraulic separator (CSC) structure type clutch of electromagnetism pin and locking pin seat
Hydraulic pressure separating device (CSC) hydraulic cylinder of device.
4. integrated hydraulic separator (CSC) structure type clutch with electromagnetism pin and locking pin seat as shown in Figure 9 and Figure 10
Hydraulic pressure separating device (CSC) hydraulic cylinder of device.
First and second main hydraulic cylinders 8,9 are connected with the first and second sub- hydraulic cylinders 14,15 by airtight passage
And the rotation of nut 6 is driven to keep screw rod 7 axial by the gear pair that deceleration driving gear 2 and reduction driven gear 3 form in motor 1
Movement, successively pushes the first and second main hydraulic cylinder pistons 10,11 and first and second in the first and second main hydraulic cylinders 8,9
The first and second sub- hydraulic cylinder pistons 16,17 in sub- hydraulic cylinder 14,15 realize the axial displacement of shift fork axle 25, complete shift
Process；Or the piston separated in power-assisted oil cylinder/hydraulic pressure separating device CSC oil cylinder is pushed, realize such as Fig. 7-clutch shown in Fig. 10
Switching.
The screw rod 7, nut 6, pass through the deceleration driving gear 2 and reduction driven tooth being set on 1 output shaft of motor
The gear pair driving of 3 composition of wheel is turned round with realizing to slow down to rise.
The control system 21 and speed changer TCU22, vehicle CAN23 can real-time communication, that is, receive to come from speed changer
TCU22, vehicle CAN23 signal and send a signal to speed changer TCU22, vehicle CAN23, while control system 21 also and this
Speed changer electromechanical execute position sensor 19 set by internal system, electromagnetism pin 18, motor 1 with rotary angle transmitter etc. it
Between real-time communication, that is, receive the signal from position sensor 19, electromagnetism pin 18, motor 1 with rotary angle transmitter etc. and into
Row processing is realized high to the sendings such as position sensor 19, electromagnetism pin 18, motor 1 with rotary angle transmitter instruction on the basis of calculating
The functions such as the quick gear switching of precision.
The shift fork axle 25 is equipped with for ensuring the stable automatic locking apparatus of gear, the automatic locking apparatus packet
Include: electromagnetism pin 18 is set to the gear locking pin seat 24 that self-locking hole is had in shift fork axle 25, in which: electromagnetism pin 18 and gear lock pin
The automatic contact of seat 24 and the locking and unlock for being detached from achievable 25 axial displacement of shift fork axle.
The lock detection device being connected with control system 21 is further provided in the automatic locking apparatus, in which: electricity
Magnetic pin 18 is connected with control system 21, by detecting 18 position of electromagnetism pin, realizes the closed loop that control system 21 acts electromagnetism pin 9
Control.
The default of electromagnetism pin 18 is in contact with gear locking pin seat 24, and gear locking pin seat is detached from energization
24, to realize the unlock to shift fork axle 25.
The sub- hydraulic cylinder 14,15 of the first and second main hydraulic cylinders 8,9 and first and second in described Fig. 1 is each provided with one
A sliding seal is to reduce the risk of leakage of medium (such as hydraulic oil).
The shift fork axle 25 is equipped with the plane notch of groove or circumferencial direction for rotation condition, corresponding described
Shift fork axle rotation condition block 26 is equipped in transmission case body to be in contact with the groove or notch to prevent shift fork axle 25 from rotating.
Pin, groove or the limited block etc. for rotation condition are equipped in first and second main hydraulic cylinders 8,9, it should
Mechanism makes screw rod 7 that can only move linearly and cannot rotate.
The pin is used but is not limited to: piston rotation condition pin 12,13.
6 phase of nut of the reduction driven gear 3 and feed screw nut pair fixes and makees radial and axial branch by bearing 4,5
Support, nut 6 are rotated when motor 1 drives deceleration driving gear 2, reduction driven gear 3 is rotated with reduction driven gear 3,
Nut 6 is without axial movement at this time, and the screw rod 7 in feed screw nut pair then makees axial linear movement.Because screw both end respectively with
First and second main hydraulic cylinder pistons 10,11 are fixedly connected, and the first and second main hydraulic cylinder pistons 10,11 are by corresponding work
Plug rotation condition pin 12,13 constrain and cannot rotate, so screw rod 7 when moving linearly without spin.
The screw rod 7, which moves linearly, will push the first and second main hydraulic cylinder pistons 10,11 of connection fixed thereto
It moves linearly, and then keeps first or second main hydraulic cylinder 8 or 9 (depending on the steering of motor 1) and the closing to connect therewith logical
Medium in road is squeezed and establishes pressure, at this time a certain electromagnetism pin 18 (mesh given depending on control system 21 in the unlocked state
Depending on mark gear), then it is solid with shift fork axle 25 in the sub- hydraulic cylinder 14 or 15 of the first or second of corresponding 25 side of shift fork axle
Surely the sub- hydraulic cylinder piston 16 or 17 of the first or second connected can be pushed with position sensing magnet 20 and gear locking pin seat 24
Shift fork axle 25 moves linearly to target gear, and the position sensing magnet 20 at this moment following shift fork axle 25 to move linearly is in position sensing
Position signal is generated in device 19 and control system 21 is transmitted to by harness.When shift fork axle 25 moves to target gear position,
Control system 21 issues instruction to motor 1 and electromagnetism pin 18, so that motor 1 is stopped rotating, and electromagnetism pin 18 is moved to gear
Blocking.This completes a shifts to recycle.The rest may be inferred for gear switching in shift fork axle 25 and other shift fork axles.
Since the first and second main hydraulic cylinders 8,9 are symmetrically arranged in the both ends of screw rod 7, as long as so that switch motor 1
Steering, can be obtained two-way movement and power；First and second sub- hydraulic cylinders 14,15 are also to be symmetrically disposed on shift fork axle 25
Both ends so that shift fork axle 25 can bidirectional balanced stress to move linearly.
System is executed to the speed changer electromechanical in described Fig. 1 and makees local directed complete set and modification, can be formed such as Fig. 3, figure
4, similar speed changer electromechanical shown in Fig. 5 and Fig. 6 executes system.These similar speed changer electromechanicals execute system
Using the first and second main hydraulic cylinders 8,9 and/or the first and second sub- hydraulic cylinders for having 2 or 2 or more sliding seals
14、15。
In view of the speed changer electromechanical executes system in During Process of Long-term Operation, medium (such as hydraulic oil) meeting
Be lost, therefore be equipped in the system such as Fig. 1, Fig. 3, Fig. 4, Fig. 5 and recharging oil device shown in fig. 6, i.e., repairing pond 27,
28.In same speed changer execution system, repairing pond can set two, can also set one, as shown in figure 11.Only set a benefit
The system evolution as shown in Figure 1 of the system shown in Figure 11 of oil sump, similarly Fig. 3, Fig. 4, Fig. 5 and system shown in Figure 6 can also be according to
This, which analogizes, makees identical differentiation, constitutes the speed changer electromechanical execution system for only setting a repairing pond.
In view of the speed changer electromechanical executes system in the process of running, medium (such as hydraulic oil) cannot be mixed
The gases such as miscellaneous air, therefore gas vent 29 is equipped in the main hydraulic cylinder and sub- hydraulic cylinder.
In view of the speed changer electromechanical executes system in During Process of Long-term Operation, deceleration driving gear 2 slows down
Driven gear 3, bearing 4 and 5, screw rod 7, nut 6 etc. need to lubricate, therefore using such as Fig. 1, Fig. 3, Fig. 4, figure in the system
5, lubricating grease or lubricating oil shown in Fig. 6 and Figure 11 are lubricated these parts.
The specific work process that the implementation case is related to above-mentioned apparatus is as follows:
Control system 21 receives gear shifting signal from speed changer TCU22 and vehicle CAN23, and issues shifting commands, indicates mesh
Gear is marked, the corresponding electromagnetism pin 18 of shift fork axle 25 where target gear exits unlock from gear locking pin seat 27, after unlock in place
18 feedback signal of electromagnetism pin is sent instructions again to control system 21, control system 21 to motor 1, presses the rotation of motor 1 (direction of rotation
Target gear is fixed), so that screw rod 7 is moved linearly by deceleration driving gear 2, reduction driven gear 3, nut 6, thus promotion the
One and second the first and second main hydraulic cylinder pistons 10,11 in main hydraulic cylinder 8,9, medium (such as hydraulic oil) is pushed into mesh
The sub- hydraulic cylinder 14 or 15 of shift fork axle end where marking gear, makes sub- hydraulic cylinder piston 16 or 17 push shift fork axle 25 and shift-lock
Key seat 27 moves linearly to target gear together, and position sensor 19 perceives the position sensing magnet 20 in shift fork axle 25 at this time
Changes of magnetic field caused by due to moving linearly with shift fork axle, and be converted into electric signal and be sent to control system 21, when shift fork axle 25
When being moved at target gear, control system 21 issues instruction to motor 1 and target gear electromagnetism pin 18, and motor 1 is made to stop turning
Dynamic, electromagnetism pin 18 is inserted into gear locking pin seat 27 and is latched, and electromagnetism pin 18 sends locking letter to control system 21 after the completion of locking
Number.Thus a shift circulation is to complete, and the rest may be inferred for the switching of other gears.Turn in position sensor 19 and motor 1
Angle transducer collocation uses, i.e., control system 21 interprets the feedback signal of 1 rotary angle transmitter of sensor 19 and motor, and
By set algorithm operation, to form the positional value of comparable two groups of shift fork axles 25, control system 21 is according to two groups of positional values
Difference compensate, when the difference be more than certain limit when, control system 21 issue alarm signal.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (7)
1. a kind of speed changer electromechanical executes system characterized by comprising torque output device, the manipulation being attached thereto
End acquisition real-time vehicle condition is simultaneously handled in real time, and the control system of shifting commands is then exported to torque output device and/or manipulatable end,
Wherein: torque output device includes the feed screw nut pair that at least one end is equipped with main hydraulic cylinder；The main hydraulic cylinder be two and
The both ends of feed screw nut are respectively arranged at, screw both end is fixedly connected with two main hydraulic cylinder pistons respectively, realizes executing agency
Double action, corresponding sub- hydraulic cylinder are two and are respectively arranged at the both ends of every shift fork axle to realize that shift fork axle is bidirectional balanced fast
Speed is mobile；
The shift fork axle is equipped with gear locking pin seat, and each gear locking pin seat is equipped with self-locking hole, electromagnetism pin and gear lock pin
The automatic contact of seat and the locking and unlock for being detached from realization shift fork axle axial displacement；
The self-locking hole includes: for two self-locking holes of friction speed gear and for the self-locking hole of neutral gear, and respectively
Different gears is locked by the electromagnetism pin, electromagnetism pin is connected with control system, realizes by shifting commands and retracts unlock
Or eject and be inserted into the locking of shift fork axle self-locking hole and detect the position of electromagnetism pin by control system, realize closed-loop control；
For the torque output device using having brush or brshless DC motor, which is equipped with the deceleration in gear pair actively
Gear；
The feed screw nut pair is equipped with the reduction driven gear in the gear pair；The reduction driven gear passes through bearing reality
It now axially and radially limits, the nut in feed screw nut pair follows reduction driven gear to rotate, thus by reduction driven gear
Circular motion is converted to the straight-line displacement of screw rod；
The manipulatable end is the sub- hydraulic cylinder for being set to more shift fork axles at least one end, and the main hydraulic cylinder and the son
Hydraulic cylinder is connected；Successively driving gear pair and nut to rotate by torque output device is axially moved screw rod and pushes main liquid
Pressure cylinder piston and sub- hydraulic cylinder piston, to realize that the axial displacement of shift fork axle completes shift process；
The control system monitors and diagnoses simultaneously unusual service condition and corresponding starting alarm mechanism；
The rotary angle transmitter being connected with the control system is further provided on the motor shaft, the shift fork axle is equipped with
For monitoring the electromagnet of displacement and corresponding position sensor；The control system turns position sensor and motor
The feedback signal of angle transducer is interpreted, and presses set algorithm operation, to form the position of comparable two groups of shift fork axles
Value, control system are compensated according to the difference of two groups of positional values, and when the difference is more than certain limit, control system issues report
Alert signal.
2. speed changer electromechanical according to claim 1 executes system, characterized in that the shifting commands include:
The electromagnetism pin unlock of target gear, motor rotation, piston displacement in corresponding main hydraulic cylinder, piston pushes away in the hydraulic cylinder of targeted gear seat
Signal, target gear electromagnetism pin close position sensor feedback in dynamic shift fork axle to designated position, target gear shift fork axle in place
Lock.
3. speed changer electromechanical according to claim 1 executes system, characterized in that the piston of the main hydraulic cylinder
It is equipped with axially eccentric pin hole, the cylinder body end face of corresponding main hydraulic cylinder is equipped with bolt, through bolt during piston stroke
It is inserted into pin hole, plays the role of constraining screw rod rotation.
4. speed changer electromechanical according to claim 1 executes system, characterized in that the main hydraulic cylinder and sub- liquid
A sliding seal is respectively provided in cylinder pressure to reduce liquid medium leakage.
5. speed changer electromechanical according to claim 1 executes system, characterized in that the shift fork axle, which is equipped with, to be used
In the groove of rotation condition or the plane notch of circumferencial direction, the corresponding transmission case body is interior to be equipped with shift fork axle rotation condition
Block is in contact with the groove or notch to prevent shift fork axle from rotating.
6. speed changer electromechanical according to claim 1 executes system, characterized in that the main hydraulic cylinder and sub- liquid
At least one repairing pond is equipped between cylinder pressure.
7. a kind of speed changer electromechanical based on system described in any of the above-described claim executes method, which is characterized in that with
The torque drive feed screw nut of motor output generates axial displacement and pushes main hydraulic cylinder piston and sub- hydraulic cylinder piston, by hydraulic
Oil is used as transfer medium push/pull shift fork axle axial displacement, to realize gear shift operation.
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| CN201610833555.3A CN106224530B (en) | 2016-09-20 | 2016-09-20 | Speed changer electromechanical executes system and method |
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| CN201610833555.3A CN106224530B (en) | 2016-09-20 | 2016-09-20 | Speed changer electromechanical executes system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201078468Y (en) * | 2007-07-13 | 2008-06-25 | 北京创鑫恒源科技有限公司 | Electric screw mandrel type correcting unit for automatic clutch |
| CN101943227B (en) * | 2010-08-18 | 2012-06-27 | 北京航空航天大学 | Double clutch operation system and separation and combination control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2807718A1 (en) * | 2000-04-18 | 2001-10-19 | Renault | Gearbox control system, for automobile transmission, uses electrically powered hydraulic energy sources to operate selector and change actuators |
| CN101344168A (en) * | 2008-08-18 | 2009-01-14 | 重庆大学 | Hydraulic change gear device of mechanical automatic speed transmission |
| CN201736811U (en) * | 2009-12-20 | 2011-02-09 | 曾卫东 | Control system for automated electronic-control mechanical gearbox |
| CN102384262A (en) * | 2011-11-16 | 2012-03-21 | 南京绿控传动科技有限公司 | Automatic shifting device and method for speed change of vehicles |
| CN204477279U (en) * | 2015-03-03 | 2015-07-15 | 茵卡动力新能源江苏有限公司 | A kind of mechanical automatic speed-changing case shift-selecting and changing actuating mechanism |
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| CN106224530A (en) | 2016-12-14 |
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