CN103791078B - Odd-side guard method and change speed gear box after after change speed gear box, odd-side protects system, change speed gear box - Google Patents
Odd-side guard method and change speed gear box after after change speed gear box, odd-side protects system, change speed gear box Download PDFInfo
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- CN103791078B CN103791078B CN201210431702.6A CN201210431702A CN103791078B CN 103791078 B CN103791078 B CN 103791078B CN 201210431702 A CN201210431702 A CN 201210431702A CN 103791078 B CN103791078 B CN 103791078B
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- gear box
- change speed
- speed gear
- odd
- preset value
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
- F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
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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
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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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
- F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
- F16H2061/161—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed by checking feasibility of shifts, i.e. determine if requested shift can be successfully completed and post shift values are in an acceptable range
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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
- F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
- F16H2061/165—Preventing reverse gear shifts if vehicle speed is too high for safe shifting
Abstract
The invention discloses odd-side protection system after a kind of change speed gear box, including: for detecting the tachogenerator of speed；For the shifting axle of change speed gear box being carried out the lockable mechanism of locking operation；Receive the detected value of tachogenerator and at it more than opening the controller that preset value time control lockmaking locking mechanism starts.Odd-side protection system after the change speed gear box that the present invention provides; by tachogenerator detection speed and detected value is passed to controller; control lockable mechanism at detected value more than controller when opening preset value to start; shifting axle is carried out locking operation; shifting axle is made to be in lockup state and cannot move axially; change speed gear box cannot be carried out gear shift operation; effectively prevent speed too high time change speed gear box changed to the gear shift operation in low-grade district by high-grade district; effectively prevent the damage that rear odd-side gear is caused, improve the service life of change speed gear box.Odd-side guard method and the change speed gear box of odd-side protection system after there is above-mentioned change speed gear box after present invention also offers a kind of change speed gear box.
Description
Technical field
The present invention relates to change speed gear box equipment technical field, particularly to odd-side protection system after a kind of change speed gear box,
Odd-side guard method and change speed gear box after change speed gear box.
Background technology
Rear odd-side is generally positioned at the latter half of engine mission, and its Main Function is used to by leading
The power of change speed gear box output carries out the amplification of moment of torsion, and the duty of rear odd-side is divided into high-grade district duty
With low-grade district duty, the switching of its duty is by selecting moving axially of selector shaft to realize.
The gearshift principle of change speed gear box is as follows: make the shifting axle in change speed gear box move axially by gearshift
Complete the conducting direction of double H valve.The groove coordinated with double H valve it is provided with, when double H valve on shifting axle
When the corresponding high lever in high-grade gas outlet is absorbed in groove, the air inlet of double H valve is with its high-grade gas outlet even
Logical, the cylinder top grade air inlet of auxiliary box cylinder after flowing into after automobile source of the gas entrance double H valve, thus secondary after promoting
The piston of case cylinder is to the motion of high-grade position, and after drive, odd-side gear runs in high-grade position；By top grade
When shifting to low grade, the low-grade gas outlet of the axial double H valve of shifting moves axially, and the low grade of double H valve is given vent to anger
The corresponding low lever of mouth is absorbed in groove, and the high lever removal groove that high-grade gas outlet is corresponding, make
The air inlet obtaining double H valve connects with its low-grade gas outlet, odd-side gas after flowing into after automobile source of the gas entrance double H valve
The cylinder low grade air inlet of cylinder, thus promote after auxiliary box cylinder piston to low gear position move, now after
Odd-side is transformed into low-grade district duty by high-grade district duty.
And when the piston of rear auxiliary box cylinder is replaced low gear position by high tap position, the top grade of rear odd-side can be made
District's gear mutually switches with low-grade district gear, and when vehicle high-speed runs, the gear rotational speed in rear odd-side is relatively
Height, now change gear easily makes it impaired, thus the normal operation of odd-side after impact, time serious even
Make the gear in rear odd-side scrap, reduce the service life of change speed gear box.
Therefore, how to avoid change speed gear box to be changed to low grade when high-speed cruising by top grade, improve making of change speed gear box
With the life-span, it is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides odd-side protection system after a kind of change speed gear box, to avoid change speed gear box to exist
Changed to low grade by top grade during high-speed cruising, improve the service life of change speed gear box.Present invention also offers one
Odd-side guard method and the change speed gear box of odd-side protection system after there is above-mentioned change speed gear box after change speed gear box.
For achieving the above object, the present invention provides following technical scheme:
Odd-side protection system after a kind of change speed gear box, including:
For detecting the tachogenerator of speed；
For the shifting axle of described change speed gear box being carried out the lockable mechanism of locking operation；
Receive the detected value of described tachogenerator and control described locking machine at it more than when opening preset value
The controller that structure starts；Above-mentioned unlatching preset value be the permission that arranges of those skilled in the art by high-grade district to
The marginal value of the speed of low-grade district gearshift.
Preferably, after above-mentioned change speed gear box in odd-side protection system, also include and described controller communication link
The neutral position switch connect, described controller is more than described unlatching preset value and described sky at described detected value
Position switch controls the controller that described lockable mechanism starts when opening.
Preferably, after above-mentioned change speed gear box in odd-side protection system, described lockable mechanism includes:
By described controller control switch electromagnetic valve, described electromagnetic valve have for described shifting axle
The inlet end of the high-grade gas outlet connection of the double H valve coordinated；
The lock-up cylinder connected with the outlet side of described electromagnetic valve, described lock-up cylinder has for described
Shifting axle fixes the drive end of connection.
Preferably, after above-mentioned change speed gear box in odd-side protection system, described lock-up cylinder is one-way cylinder.
Preferably, after above-mentioned change speed gear box in odd-side protection system,
Described controller includes:
The first control that described lockable mechanism starts is controlled when described detected value is more than described unlatching preset value
Unit；
At described detected value less than controlling the second control list that described lockable mechanism is closed when closing preset value
Unit；
Described unlatching preset value is more than described closedown preset value.
Preferably, after above-mentioned change speed gear box in odd-side protection system, described tachogenerator is described for detection
The speed probe of the outfan rotating speed of change speed gear box；Described unlatching preset value is 700RPM, and described closedown is pre-
If value is 660RPM.
Odd-side guard method after a kind of change speed gear box, including step:
1) detection speed, and obtain detected value；
2) when detected value is more than when opening preset value, next step is entered；
3) the shifting axle making change speed gear box is in lockup state.
Preferably, after above-mentioned change speed gear box in odd-side guard method, described step 2) particularly as follows: when detection
When value is in neutral more than described unlatching preset value and change speed gear box, enter step.
Preferably, after above-mentioned change speed gear box in odd-side guard method, described step 2) particularly as follows: arrange and open
Open preset value and the closedown preset value less than described unlatching preset value；
When detected value is more than described unlatching preset value, enter step 3)；
When detected value is less than described closedown preset value, described shifting axle is in released state；
When detected value is more than described closedown preset value and is less than described unlatching preset value, described choosing is maintained to change
The current state of gear shaft.
A kind of change speed gear box, after described change speed gear box has the change speed gear box as described in above-mentioned any one, odd-side protection is
System.
From above-mentioned technical scheme it can be seen that odd-side protection system after the change speed gear box that provides of the present invention, logical
Cross tachogenerator detection speed and detected value is passed to controller, being preset with unlatching in controller and preset
Value, at detected value more than when opening preset value, i.e. speed is too high, is unfavorable for having high-grade district to enter to low-grade district
During row gear shift operation, controller controls lockable mechanism and starts, and shifting axle is carried out locking operation, makes choosing
Shifting shaft is in lockup state and cannot move axially, it is impossible to change speed gear box is carried out gear shift operation, thus has
Effect avoid speed too high time change speed gear box changed to the gear shift operation in low-grade district by high-grade district, it is right to effectively prevent
The damage that rear odd-side gear causes, improves the service life of change speed gear box.
After present invention also offers a kind of change speed gear box odd-side guard method and after there is above-mentioned change speed gear box odd-side protect
The change speed gear box of protecting system.Owing to after above-mentioned change speed gear box, odd-side protection system has the effect above, have above-mentioned
After change speed gear box, the change speed gear box of odd-side protection system also should have same technique effect, is situated between the most one by one at this
Continue.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of odd-side protection system after the change speed gear box that Fig. 1 provides for the embodiment of the present invention；
The FB(flow block) of odd-side guard method after the change speed gear box that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
The invention discloses odd-side protection system after a kind of change speed gear box, to avoid change speed gear box when high-speed cruising
Changed to low-grade district by high-grade district, improve the service life of change speed gear box.Present invention also offers a kind of change speed gear box
Rear odd-side guard method and the change speed gear box of odd-side protection system after there is above-mentioned change speed gear box.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
After refer to the change speed gear box that Fig. 1, Fig. 1 provide for the embodiment of the present invention, the structure of odd-side protection system is shown
It is intended to.
Embodiments provide odd-side protection system after a kind of change speed gear box, including: it is used for detecting speed
Tachogenerator 5；For the shifting axle 3 of change speed gear box being carried out the lockable mechanism of locking operation；Receive
The detected value of tachogenerator 5 and at it more than opening the controller that preset value time control lockmaking locking mechanism starts
6。
After the change speed gear box that the embodiment of the present invention provides, odd-side protection system, detects car by tachogenerator 5
Detected value is also passed to controller 6 by speed, is preset with unlatching preset value, is more than at detected value in controller 6
When opening preset value, i.e. speed is too high, when being unfavorable for having high-grade district to carry out gear shift operation to low-grade district, and control
Device 6 processed controls lockable mechanism and starts, and shifting axle 3 is carried out locking operation, makes shifting axle 3 be in
Lockup state and cannot move axially, it is impossible to change speed gear box is carried out gear shift operation, thus effectively prevent car
The gear shift operation that when speed is too high, change speed gear box is changed to low-grade district by high-grade district, effectively prevent rear odd-side gear
The damage caused, improves the service life of change speed gear box.
In gear shift operation, making the shifting axle 3 in change speed gear box move axially by gearshift, choosing is changed
Being provided with the groove coordinated with double H valve 2 on gear shaft 3, in Fig. 1, shifting axle 3 is positioned at high-grade district, this
Time, the air inlet P of double H valve 2 connects with its high-grade gas outlet B, and automobile source of the gas 1 enters double H valve 2
The cylinder top grade air inlet C of auxiliary box cylinder 4 after rear inflow, thus promote after auxiliary box cylinder 4 piston to
The motion of high-grade position；When being shifted to low grade by top grade, shifting axle 3 is given vent to anger to the low grade of double H valve 2
Mouth A moves axially so that the air inlet P of double H valve 2 connects with its low-grade gas outlet A, automobile source of the gas
The cylinder low grade air inlet D of auxiliary box cylinder 4 after flowing into after 1 entrance double H valve 2, thus odd-side after promoting
The piston of cylinder 4 moves to low gear position, and after drive, odd-side gear runs at low gear position, carries out speed change
Case is by the high-grade district gear shift operation to low-grade district.It follows that when speed is too high, i.e. tachogenerator 5
When the detected value detecting speed and draw is more than unlatching preset value, the speed change provided by the embodiment of the present invention
After case, odd-side protection system locking shifting axle 3, so that it can not move axially, and then reaches change speed gear box
Gear shift operation can not be carried out to low-grade district by high-grade district.
Above-mentioned unlatching preset value is that the permission that those skilled in the art are arranged is shifted gears to low-grade district by high-grade district
The marginal value of speed.
In order to after improving the change speed gear box that the embodiment of the present invention provides, odd-side protects the service life of system, also wrap
Including and the neutral position switch 9 of controller 6 communication connection, controller 6 is more than opening preset value also at detected value
And neutral position switch 9 open time control lockmaking locking mechanism start controller.By high-grade position to low gear position
When shifting gears, need through neutral gear position, and neutral position switch 9 when change speed gear box is in neutral gear position to
Controller 6 sends signal, i.e. arranges in change speed gear box is in neutral gear position and speed is higher than controller 6
Unlatching preset value time, just can control lockable mechanism start, shifting axle 3 is carried out locking operation, from
And make shifting axle 3 cannot be replaced low gear position by high tap position.By increasing neutral position switch 9 so that
After the change speed gear box that the embodiment of the present invention provides, odd-side protection system only starts when gearshift, and when not shifting gears not
Start, reduce its use time, extend the service life of protection system.
Lockable mechanism includes: by controller 6 control switch electromagnetic valve 7, electromagnetic valve 7 have for choosing
The inlet end of the high-grade gas outlet B connection of the double H valve 2 that shifting shaft 3 coordinates；With giving vent to anger of electromagnetic valve 7
The lock-up cylinder 8 of end connection, lock-up cylinder 8 has for the drive end that be connected fixing with shifting axle 3.
After after the change speed gear box embodiment of the present invention provided, odd-side protection system is installed in change speed gear box, in speed
Time too high, tachogenerator 5 transmit detected value to controller 6, and controlled electromagnetic valve 7 by controller 6
Opening, now double H valve 2 is in high tap position, i.e. the air inlet P of double H valve 2 and its high-grade gas outlet B
Connection, automobile source of the gas 1 supplies to double H valve 2, flows to the electromagnetic valve 7 opened through double H valve 2, and
Flow in lock-up cylinder 8 so that fixing, with the drive end of lock-up cylinder 8, the shifting axle 3 being connected cannot
Move axially, and then gear shift operation cannot be carried out by high-grade position to low gear position；When speed is relatively low,
Transmitted detected value to controller 6 by tachogenerator 5, and controlled electromagnetic valve 7 by controller 6 and close, make
Drive end in lock-up cylinder 8 cannot limit shifting axle 3 and moves axially, by controlling shifting axle 3
The low-grade outlet side A of double H valve 2 moves so that the air inlet P of double H valve 2 and its low-grade gas outlet A
Connection, and then the cylinder low grade of auxiliary box cylinder 4 is entered after making the gas of automobile source of the gas 1 be flowed into by double H valve 2
After QI KOU D promotion, the piston of auxiliary box cylinder 4 moves to low gear position, completes being changed to low-grade by top grade
Gear operation.
Wherein, electromagnetic valve 7 is 3/2 electromagnetic valve of normally closed type.
Preferably, lock-up cylinder 8 is one-way cylinder.The air inlet/outlet of individual event cylinder goes out with electromagnetic valve 7
QI KOU connects, as it is shown in figure 1, the air inlet/outlet of individual event cylinder is arranged at individual event cylinder near double H valve 2
Side, and the high-grade outlet side B of double H valve 2 is near individual event cylinder.When speed is too high, i.e. need
When making shifting axle 3 be in lockup state, air inlet in one-way cylinder, make piston in one-way cylinder to
Direction away from double H valve 2 is moved, even if shifting axle 3 has the high-grade outlet side B to double H valve 2
The trend of motion, thus effectively limit shifting axle 3 and move to the low-grade outlet side A of double H valve 2 and change
Low-grade operation；Speed is relatively low can be shifted to low-grade district by high-grade district time, electromagnetic valve 7 cuts out, and stops
Only air inlet in individual event cylinder, the gas in one-way cylinder is squeezed under the spring effect of its opposite side
Through the air vent discharge of electromagnetic valve 7, now the axially-movable of shifting axle 3 is unrestricted, can carry out
Gear shift operation.
Lock-up cylinder 8 can also be set to two-way cylinder, and electromagnetic valve 7 is set to three-way valve, will
The import and export with two-way cylinder respectively of two gas outlets of electromagnetic valve 7 connect, by controlling leading of three-way valve
Piston in logical direction controlling cylinder moves, thus completes moving axially of shifting axle 3.
In another kind of embodiment, lockable mechanism includes: controlled the on and off switch of switch by controller 6；
Be energized the electric magnet being connected with on and off switch, and electric magnet coordinates installation with shifting axle 3.Opened by power supply
The conducting closed so that shifting axle 3 is opened and held to electric magnet, thus limits the axial shifting of shifting axle 3
Dynamic, complete locking operation；By the disconnection of on and off switch so that electric magnet is closed, thus it is not intended to choosing
Moving axially of shifting shaft 3.
Owing to automobile is in operation speed wobble, controller 6 is preferably made to include: at detected value more than opening
Open the first control unit that preset value time control lockmaking locking mechanism starts；At detected value less than when closing preset value
Control the second control unit that lockable mechanism is closed；Open preset value more than closing preset value.In the biography that tests the speed
The detected value that sensor 5 draws after detecting speed starts lockable mechanism more than when opening preset value, in speed not
Stably make detected value when opening conversion about preset value, can't make lockable mechanism opening with
Toggle between closed mode, but arrange less than the closedown preset value opening preset value, when detected value is low
Lockable mechanism is closed in time closing preset value.Effectively prevent lockable mechanism in opening and closed mode
Between switching times, improve the service life of lockable mechanism.
For the ease of detection, preferably tachogenerator 5 is set to the outfan rotating speed of detection change speed gear box
Speed probe；Corresponding, unlatching preset value is set to 700RPM, closes preset value and be set to
660RPM.The i.e. outfan rotating speed of change speed gear box of speed probe detection automobile draw detected value, in inspection
When measured value is higher than 700RPM, lockable mechanism starts；And when detected value is less than 660RPM, locking machine
Structure is closed；When detected value is in 660RPM～700RPM, lockable mechanism is remained stationary, and the most originally locks
Locking mechanism is in starting state and is now also at starting state, originally lockable mechanism and is closed now
It is also at closed mode.
Refer to the flow chart element of odd-side guard method after the change speed gear box that Fig. 2, Fig. 2 provide for the embodiment of the present invention
Figure.
The embodiment of the present invention additionally provides odd-side guard method after a kind of change speed gear box, including step:
S1: detection speed, and obtain detected value；
The speed of vehicle is detected, and obtains corresponding detected value.
S2: when detected value is more than when opening preset value, enter next step；
Unlatching preset value is set, open preset value be the permission that arranges of those skilled in the art by high-grade district to
The marginal value of the speed of low-grade district gearshift, and next step is entered when detected value is more than this marginal value.
S3: make the shifting axle of change speed gear box be in lockup state；
Shifting axle in change speed gear box is carried out locking operation so that it is be in lockup state, it is to avoid it is carried out
The gear shift operation moved axially.
By arranging unlatching preset value, and shifting axle is locked more than when opening preset value at detected value
Only operation, makes shifting axle be in lockup state and can not carry out gear shift operation, thus effectively prevent car
Speed crosses the operation that fast time variant speed case is carried out to low-grade district shifting gears by high-grade district, and then avoids what gearshift caused
The damage of odd-side after change speed gear box, thus improve the service life of change speed gear box.
Further, step S2 is in neutral particularly as follows: work as detected value more than unlatching preset value and change speed gear box
Time, enter step S3.Step S3 is entered when detected value is in neutral more than unlatching preset value and change speed gear box,
And when vehicle is not at neutral, detected value does not the most enter step S3 more than opening preset value.
Further, step S2 particularly as follows: arrange open preset value and less than open preset value closedown pre-
If value；When detected value is more than when opening preset value, enter step S3；When detected value is less than closing preset value
Time, shifting axle is in released state；When detected value is more than and closes preset value and be less than unlatching preset value,
Maintain the current state of shifting axle.
Two preset values are set, are respectively and open preset value and close preset value, and it is little to close preset value
In opening preset value.In shift process, when detected value is more than when opening preset value, and now speed is too high,
Enter step S3, even if shifting axle is in lockup state so that shifting axle cannot be carried out gear shift operation；
When detected value is less than when closing preset value, and now speed is relatively low, can carry out by top grade to low-grade gearshift
Operation, makes shifting axle be in released state, and even shifting axle is in lockup state, to shifting axle
It is unlocked operation so that it is be in released state, if shifting axle is in released state, then maintains current
State；When detected value is more than closing preset value and less than when opening preset value, if shifting axle is in locking
State, then maintain lockup state, if shifting axle is in released state, then maintains released state.
Preferably, detected value is the tachometer value of outfan of change speed gear box；Unlatching preset value is 700RPM, closes
Closing preset value is 660RPM.
The embodiment of the present invention additionally provides a kind of change speed gear box, and change speed gear box has such as any one change speed gear box above-mentioned
Rear odd-side protection system.Owing to after above-mentioned change speed gear box, odd-side protection system has the effect above, have above-mentioned
After change speed gear box, the change speed gear box of odd-side protection system also should have same technique effect, is situated between the most one by one at this
Continue.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (2)
1. odd-side guard method after a change speed gear box, it is characterised in that include step:
1) detection speed, and obtain detected value；
2) particularly as follows: arrange and open preset value and the closedown preset value less than described unlatching preset value；
When detected value is more than described unlatching preset value, enter step 3)；
When detected value is less than described closedown preset value, the shifting axle of described change speed gear box is in released state；
When detected value is more than described closedown preset value and is less than described unlatching preset value, maintain described speed change
The current state of the shifting axle of case；
3) the shifting axle making change speed gear box is in lockup state.
2. odd-side guard method after change speed gear box as claimed in claim 1, it is characterised in that described step
2) particularly as follows: when detected value is in neutral more than described unlatching preset value and change speed gear box, enter step 3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210431702.6A CN103791078B (en) | 2012-11-01 | 2012-11-01 | Odd-side guard method and change speed gear box after after change speed gear box, odd-side protects system, change speed gear box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210431702.6A CN103791078B (en) | 2012-11-01 | 2012-11-01 | Odd-side guard method and change speed gear box after after change speed gear box, odd-side protects system, change speed gear box |
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| Publication Number | Publication Date |
|---|---|
| CN103791078A CN103791078A (en) | 2014-05-14 |
| CN103791078B true CN103791078B (en) | 2016-10-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104896083A (en) * | 2015-06-09 | 2015-09-09 | 陕西法士特齿轮有限责任公司 | Double-H control auxiliary box range shifting protection system for commercial vehicle |
| CN108980334A (en) * | 2018-09-30 | 2018-12-11 | 上海索达传动机械有限公司 | A kind of heavy load truck and its gearbox gear-shift steerable system |
| CN110966402B (en) * | 2019-12-27 | 2021-02-09 | 重庆铁马工业集团有限公司 | Novel gearbox gearshift |
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| CN202914711U (en) * | 2012-11-01 | 2013-05-01 | 上海索达传动机械有限公司 | Gearbox and gearbox rear auxiliary box protection system thereof |
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| US5241476A (en) * | 1990-05-08 | 1993-08-31 | Chrysler Corporation | Acceleration prediction responsive adaptive upshift control |
| JPH05340427A (en) * | 1992-06-05 | 1993-12-21 | Teijin Seiki Co Ltd | Supporting device of grinding spindle |
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| CN1173436A (en) * | 1996-04-02 | 1998-02-18 | 易通公司 | Manually shifted transmission with enhanced automatic range shift |
| CN101004203A (en) * | 2006-10-21 | 2007-07-25 | 山西大同齿轮集团有限责任公司 | Gearbox of heavy-duty car in sixteen steps |
| CN200975447Y (en) * | 2006-10-21 | 2007-11-14 | 山西大同齿轮集团有限责任公司 | 16-speed heavy-duty car speed changing box |
| CN202914711U (en) * | 2012-11-01 | 2013-05-01 | 上海索达传动机械有限公司 | Gearbox and gearbox rear auxiliary box protection system thereof |
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| Publication number | Publication date |
|---|---|
| CN103791078A (en) | 2014-05-14 |
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