CN103791078A - Transmission rear auxiliary case protection system, transmission rear auxiliary case protection method and transmission - Google Patents
Transmission rear auxiliary case protection system, transmission rear auxiliary case protection method and transmission Download PDFInfo
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- CN103791078A CN103791078A CN201210431702.6A CN201210431702A CN103791078A CN 103791078 A CN103791078 A CN 103791078A CN 201210431702 A CN201210431702 A CN 201210431702A CN 103791078 A CN103791078 A CN 103791078A
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a transmission rear auxiliary case protection system. The system comprises a speed measurement sensor, a locking mechanism, and a controller; the speed measurement sensor is used to detect vehicle speed, the locking mechanism is used for locking a gearshift shaft of the transmission, and the controller is used for receiving a detected value of the speed measurement sensor and controlling the locking mechanism to start up when the detected value is larger than a preset value. According to the system, the speed measurement sensor detects the vehicle speed and transmits the detected value to the controller; when the detected value is larger than the preset value, the controller controls the locking mechanism to start and lock the gearshift shaft, the gearshift shaft is locked and unable to axially move, shifting gears of the transmission is disabled, and accordingly shifting from a high gear to a low gear for the transmission when the vehicle speed is too high is effectively avoided, damage to gears in the rear auxiliary case is effectively avoided and the service life of the transmission is prolonged. The invention further provides a transmission rear auxiliary case protection method and the transmission comprising the transmission rear auxiliary case protection system.
Description
Technical field
The present invention relates to gearbox equipment technical field, particularly odd-side guard method and gearbox after odd-side protective system, gearbox after a kind of gearbox.
Background technique
Rear odd-side is generally positioned at the latter half part of engine mission, its Main Function is the amplification for the power of being exported by main-gear box being carried out to moment of torsion, the working state of rear odd-side is divided into high-grade district working state and low-grade district working state, the switching of its working state be by select shift shaft move axially realize.
The gearshift principle of gearbox is as follows: make shifting axle in gearbox move axially the conducting direction of double H valve by gearshift.On shifting axle, be provided with the groove coordinating with double H valve, in the time that the corresponding high lever in the high-grade air outlet of double H valve is absorbed in groove, the suction port of double H valve is communicated with its high-grade air outlet, automobile source of the gas flows into the high-grade suction port of cylinder of odd-side cylinder afterwards after entering double H valve, thereby the piston of odd-side cylinder moves to high-grade position after promoting, after driving, odd-side gear moves in high-grade position; In the time shifting gears low grade by top grade, the low-grade air outlet of the axial double H valve of shifting moves axially, the corresponding low lever in low-grade air outlet of double H valve is absorbed in groove, and the corresponding high lever in high-grade air outlet shifts out groove, the suction port of double H valve is communicated with its low-grade air outlet, automobile source of the gas flows into the low-grade suction port of cylinder of odd-side cylinder afterwards after entering double H valve, thereby the piston of odd-side cylinder moves to low gear position after promoting, now rear odd-side is transformed into low-grade district working state by high-grade district working state.
And in the time that the piston of rear odd-side cylinder is replaced low gear position by high tap position, can make high-grade district gear and the low-grade district gear of rear odd-side mutually switch, in the time that vehicle high-speed moves, gear rotational speed in rear odd-side is higher, now change gear very easily makes it impaired, thereby the normal operation of odd-side after impact, even makes the gear in rear odd-side scrap when serious, reduces the working life of gearbox.
Therefore, how avoiding gearbox to change to low grade by top grade in the time of high speed operation, improve the working life of gearbox, is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides odd-side protective system after a kind of gearbox, to avoid gearbox to change to low grade by top grade when the high speed operation, improve the working life of gearbox.The gearbox of odd-side protective system after the present invention also provides odd-side guard method after a kind of gearbox and had above-mentioned gearbox.
For achieving the above object, the invention provides following technological scheme:
Odd-side protective system after a kind of gearbox, comprising:
For detection of the tachogenerator of the speed of a motor vehicle;
For the lockable mechanism that the shifting axle of described gearbox is carried out to locking operation;
Receive the checkout value of described tachogenerator and in the time that it is greater than unlatching predefined value, control the controller that described lockable mechanism starts.
Preferably; after above-mentioned gearbox in odd-side protective system; also comprise and the neutral position switch of described controller communication connection, described controller is in the time that described checkout value is greater than described unlatching predefined value and the unlatching of described neutral position switch, to control the controller that described lockable mechanism starts.
Preferably, after above-mentioned gearbox, in odd-side protective system, described lockable mechanism comprises:
By the solenoid valve of described controller control switch, described solenoid valve has the inlet end that the high-grade air outlet of the double H valve for coordinating with described shifting axle is communicated with;
With the lock-up cylinder that the outlet side of described solenoid valve is communicated with, described lock-up cylinder has the drive end for being fixedly connected with described shifting axle.
Preferably, after above-mentioned gearbox, in odd-side protective system, described lock-up cylinder is one-way cylinder.
Preferably, after above-mentioned gearbox in odd-side protective system,
Described controller comprises:
In the time that being greater than described unlatching predefined value, described checkout value controls the first control unit that described lockable mechanism starts;
Be less than and control the second control unit that described lockable mechanism is closed while closing predefined value at described checkout value;
Described in being greater than, described unlatching predefined value closes predefined value.
Preferably, after above-mentioned gearbox, in odd-side protective system, described tachogenerator is the speed probe that detects the output terminal rotating speed of described gearbox; Described unlatching predefined value is 700RPM, described in to close predefined value be 660RPM.
Odd-side guard method after a kind of gearbox, comprises step:
1) detect the speed of a motor vehicle, and obtain checkout value;
2) in the time that checkout value is greater than unlatching predefined value, enter next step;
3) make the shifting axle of gearbox in lockup state.
Preferably, after above-mentioned gearbox in odd-side guard method, described step 2) be specially: in the time that checkout value is greater than described unlatching predefined value and speed changer in neutral, enter step.
Preferably, after above-mentioned gearbox in odd-side guard method, described step 2) be specially: the predefined value of closing of opening predefined value and being less than described unlatching predefined value is set;
In the time that checkout value is greater than described unlatching predefined value, enter step 3);
In the time closing predefined value described in checkout value is less than, described shifting axle is in released state;
In the time closing predefined value described in checkout value is greater than and be less than described unlatching predefined value, maintain the current state of described shifting axle.
A kind of gearbox, described gearbox has odd-side protective system after the gearbox as described in above-mentioned any one.
Can find out from above-mentioned technological scheme, odd-side protective system after gearbox provided by the invention, detect the speed of a motor vehicle and checkout value is passed to controller by tachogenerator, in controller, be preset with unlatching predefined value, in the time that checkout value is greater than unlatching predefined value, be that the speed of a motor vehicle is too high, while being unfavorable for having high-grade district to carry out gear shift operation to low-grade district, controller control lockable mechanism starts, shifting axle is carried out to locking operation, shifting axle cannot be moved axially in lockup state, cannot carry out gear shift operation to gearbox, thereby while effectively having avoided the speed of a motor vehicle too high, gearbox is changed to the gear shift operation in low-grade district by high-grade district, effectively avoid the damage that rear odd-side gear is caused, improve the working life of gearbox.
The gearbox of odd-side protective system after the present invention also provides odd-side guard method after a kind of gearbox and had above-mentioned gearbox.Because odd-side protective system after above-mentioned gearbox has above-mentioned effect, there is the gearbox of odd-side protective system after above-mentioned gearbox and also should there is same technique effect, introduce no longer one by one at this.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of odd-side protective system after the gearbox that Fig. 1 provides for the embodiment of the present invention;
The FB(flow block) of odd-side guard method after the gearbox that Fig. 2 provides for the embodiment of the present invention.
Embodiment
The invention discloses odd-side protective system after a kind of gearbox, to avoid gearbox to change to low-grade district by high-grade district when the high speed operation, improve the working life of gearbox.The gearbox of odd-side protective system after the present invention also provides odd-side guard method after a kind of gearbox and had above-mentioned gearbox.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the structural representation of odd-side protective system after the gearbox that Fig. 1 provides for the embodiment of the present invention.
The embodiment of the present invention provides odd-side protective system after a kind of gearbox, comprising: for detection of the tachogenerator 5 of the speed of a motor vehicle; For the lockable mechanism that the shifting axle 3 of gearbox is carried out to locking operation; Receive the checkout value of tachogenerator 5 and be greater than and open the controller 6 that predefined value time control lockmaking locking mechanism starts at it.
Odd-side protective system after the gearbox that the embodiment of the present invention provides, detect the speed of a motor vehicle and checkout value is passed to controller 6 by tachogenerator 5, in controller 6, be preset with unlatching predefined value, in the time that checkout value is greater than unlatching predefined value, be that the speed of a motor vehicle is too high, while being unfavorable for having high-grade district to carry out gear shift operation to low-grade district, controller 6 is controlled lockable mechanism and is started, shifting axle 3 is carried out to locking operation, shifting axle 3 cannot be moved axially in lockup state, cannot carry out gear shift operation to gearbox, thereby while effectively having avoided the speed of a motor vehicle too high, gearbox is changed to the gear shift operation in low-grade district by high-grade district, effectively avoid the damage that rear odd-side gear is caused, improve the working life of gearbox.
In gear shift operation, by gearshift, the shifting axle 3 in gearbox is moved axially, on shifting axle 3, be provided with the groove coordinating with double H valve 2, in Fig. 1, shifting axle 3 is positioned at high-grade district, now, the suction port P of double H valve 2 is communicated with its high-grade air outlet B, and automobile source of the gas 1 enters the high-grade suction port C of cylinder of odd-side cylinder 4 after the rear inflow of double H valve 2, thereby after promoting, the piston of odd-side cylinder 4 moves to high-grade position; In the time shifting gears low grade by top grade, shifting axle 3 moves axially to the low-grade air outlet A of double H valve 2, the suction port P of double H valve 2 is communicated with its low-grade air outlet A, automobile source of the gas 1 enters the low-grade suction port D of cylinder of odd-side cylinder 4 after the rear inflow of double H valve 2, thereby after promoting, the piston of odd-side cylinder 4 moves to low gear position, drive after odd-side gear move at low gear position, carry out gearbox by high-grade district the gear shift operation to low-grade district.Hence one can see that; in the time that the speed of a motor vehicle is too high; be that tachogenerator 5 detects the speed of a motor vehicle and the checkout value that draws is greater than while opening predefined value; odd-side protective system locking shifting axle 3 after the gearbox providing by the embodiment of the present invention; thereby it can not be moved axially, and then reach gearbox and can not carry out gear shift operation to low-grade district by high-grade district.
Above-mentioned unlatching predefined value be the permission that arranges of those skilled in the art by high-grade district the critical value to the speed of a motor vehicle of low-grade district gearshift.
In order to improve the working life of odd-side protective system after the gearbox that the embodiment of the present invention provides; also comprise the neutral position switch 9 communicating to connect with controller 6, controller 6 opens for be greater than unlatching predefined value and neutral position switch 9 at checkout value the controller that time control lockmaking locking mechanism starts.In the time being shifted gears to low gear position by high-grade position, need to pass through neutral gear position, and neutral position switch 9 is sent signal to controller 6 at speed changer during in neutral gear position, at speed changer in neutral gear position and the speed of a motor vehicle during higher than the unlatching predefined value of controller 6 interior settings, just can control lockable mechanism starts, shifting axle 3 is carried out to locking operation, thereby make shifting axle 3 to replace low gear position by high tap position.By increasing neutral position switch 9, make gearbox that the embodiment of the present invention provides after odd-side protective system only in the time of gearshift, start, and do not start while not shifting gears, reduce its service time, extended the working life of protective system.
Lockable mechanism comprises: by the solenoid valve 7 of controller 6 control switchs, solenoid valve 7 has the inlet end that the high-grade air outlet B of the double H valve 2 for coordinating with shifting axle 3 is communicated with; The lock-up cylinder 8 being communicated with the outlet side of solenoid valve 7, lock-up cylinder 8 has the drive end for being fixedly connected with shifting axle 3.After after the gearbox that the embodiment of the present invention is provided, odd-side protective system is installed in gearbox, in the time that the speed of a motor vehicle is too high, transmit checkout value to controller 6 by tachogenerator 5, and control solenoid valve 7 by controller 6 and open, now double H valve 2 is in high tap position, the suction port P that is double H valve 2 is communicated with its high-grade air outlet B, automobile source of the gas 1 is to double H valve 2 air feed, flow to the solenoid valve 7 of opening through double H valve 2, and flow in lock-up cylinder 8, the shifting axle 3 being fixedly connected with the drive end of lock-up cylinder 8 cannot be moved axially, and then cannot carry out gear shift operation to low gear position by high-grade position, in the time that the speed of a motor vehicle is lower, transmit checkout value to controller 6 by tachogenerator 5, and control solenoid valve 7 by controller 6 and close, making drive end in lock-up cylinder 8 cannot limit shifting axle 3 moves axially, move by the low-grade outlet side A that controls shifting axle 3 double H valves 2, the suction port P of double H valve 2 is communicated with its low-grade air outlet A, and then the gas that makes automobile source of the gas 1 flows into the low-grade suction port D of cylinder of rear odd-side cylinder 4 by double H valve 2 and the piston of the rear odd-side cylinder 4 of promotion moves to low gear position, completes by top grade to low-grade gear shift operation.
Wherein, 3/2 solenoid valve that solenoid valve 7 is Normally closed type.
Preferably, lock-up cylinder 8 is one-way cylinder.The air inlet/outlet of individual event cylinder is communicated with the air outlet of solenoid valve 7, and as shown in Figure 1, the air inlet/outlet of individual event cylinder is arranged at the side of individual event cylinder near double H valve 2, and the high-grade outlet side B of double H valve 2 is near individual event cylinder.In the time that the speed of a motor vehicle is too high, need to make shifting axle 3 in the time of lockup state, to air inlet in one-way cylinder, make piston in one-way cylinder to moving away from the direction of double H valve 2, even if shifting axle 3 has to the trend of the high-grade outlet side B motion of double H valve 2, move and the operation of kickdown to the low-grade outlet side A of double H valve 2 thereby effectively limit shifting axle 3; The speed of a motor vehicle is lower can shift gears low-grade district by high-grade district time, solenoid valve 7 cuts out, stop to air inlet in individual event cylinder, gas in one-way cylinder is squeezed and discharges through the relief opening of solenoid valve 7 under the spring action of its opposite side, the now axial motion of shifting axle 3 is unrestricted, can carry out gear shift operation.
Also lock-up cylinder 8 can be set to two-way cylinder, and solenoid valve 7 is set to three-way valve, two air outlets of solenoid valve 7 are communicated with the import and export of two-way cylinder respectively, move by the piston in the conducting direction control cylinder of control three-way valve, thereby complete moving axially of shifting axle 3.
In another kind of embodiment, lockable mechanism comprises: by the power switch of controller 6 control switchs; With the power switch electromagnet being connected of switching on, electromagnet coordinates installation with shifting axle 3.By the conducting of power switch, make electromagnet open and hold shifting axle 3, thereby moving axially of restriction shifting axle 3 complete locking operation; By the disconnection of power switch, electromagnet is closed, thereby do not limit moving axially of shifting axle 3.
Due to the automobile speed wobble that is in operation, preferably make controller 6 comprise: to be greater than and to open the first control unit that predefined value time control lockmaking locking mechanism starts at checkout value; Be less than and close the second control unit that predefined value time control lockmaking locking mechanism is closed at checkout value; Unlatching predefined value is greater than closes predefined value.The checkout value drawing after tachogenerator 5 detects the speed of a motor vehicle starts lockable mechanism while being greater than unlatching predefined value, make checkout value in the time opening the conversion of predefined value left and right at speed wobble, can't make lockable mechanism switch back and forth between opening state and closed condition, but arrange be less than open predefined value close predefined value, when checkout value is closed lockable mechanism when closing predefined value.Effectively avoid the switching times of lockable mechanism between opening state and closed condition, the working life of having improved lockable mechanism.
For the ease of detecting, preferably tachogenerator 5 is set to the speed probe of the output terminal rotating speed that detects gearbox; Corresponding, unlatching predefined value is set to 700RPM, closes predefined value and is set to 660RPM.Be the output terminal rotating speed of the speed probe gearbox that detects automobile and draw checkout value, at checkout value, during higher than 700RPM, lockable mechanism starts; And at checkout value during lower than 660RPM, lockable mechanism is closed; At checkout value, during in 660RPM ~ 700RPM, lockable mechanism is remained stationary, original lockable mechanism in starting state now also in starting state, originally lockable mechanism in closed condition now also in closed condition.
Please refer to Fig. 2, the FB(flow block) of odd-side guard method after the gearbox that Fig. 2 provides for the embodiment of the present invention.
The embodiment of the present invention also provides odd-side guard method after a kind of gearbox, comprises step:
S1: detect the speed of a motor vehicle, and obtain checkout value;
Speed to vehicle detects, and obtains corresponding checkout value.
S2: in the time that checkout value is greater than unlatching predefined value, enter next step;
Unlatching predefined value is set, open predefined value and be the permission that arranges of those skilled in the art by high-grade district the critical value to the speed of a motor vehicle of low-grade district gearshift, and in the time that checkout value is greater than this critical value, enter next step.
S3: make the shifting axle of gearbox in lockup state;
Shifting axle in gearbox is carried out to locking operation, make it in lockup state, the gear shift operation of avoiding it to move axially.
By unlatching predefined value is set, and in the time that checkout value is greater than unlatching predefined value, shifting axle is carried out to locking operation, make shifting axle can not carry out gear shift operation in lockup state, thereby the operation that while effectively having avoided the speed of a motor vehicle too fast, speed changer is shifted gears to low-grade district by high-grade district, and then avoided the damage of odd-side after gearbox that gearshift causes, thereby working life of having improved gearbox.
Further, step S2 is specially: when checkout value is greater than while opening predefined value and speed changer in neutral, enter step S3.Be greater than and enter step S3 while opening predefined value and speed changer in neutral at checkout value, and at vehicle during not in neutral, checkout value is greater than to be opened predefined value and also not to enter step S3.
Further, step S2 is specially: arrange and open predefined value and be less than the predefined value of closing of opening predefined value; In the time that checkout value is greater than unlatching predefined value, enter step S3; When checkout value is less than while closing predefined value, shifting axle is in released state; Open when predefined value when checkout value is greater than to close predefined value and be less than, maintain the current state of shifting axle.
Two predefined values are set, are respectively and open predefined value and close predefined value, and close predefined value and be less than unlatching predefined value.In shift process, in the time that checkout value is greater than unlatching predefined value, now the speed of a motor vehicle is too high, enters step S3, even if shifting axle in lockup state, makes shifting axle cannot carry out gear shift operation; When checkout value is less than while closing predefined value, now the speed of a motor vehicle is lower, can carry out by top grade to low-grade gear shift operation, make shifting axle in released state, even shifting axle, in lockup state, carries out unlocking operation to shifting axle, makes it in released state, if shifting axle, in released state, maintains current state; When being greater than to close predefined value and be less than, opens when predefined value, if shifting axle, in lockup state, maintains lockup state, if shifting axle, in released state, maintains released state checkout value.
The tachometer value of the output terminal that preferably, checkout value is gearbox; Unlatching predefined value is 700RPM, and closing predefined value is 660RPM.
The embodiment of the present invention also provides a kind of gearbox, and gearbox has as odd-side protective system after above-mentioned any gearbox.Because odd-side protective system after above-mentioned gearbox has above-mentioned effect, there is the gearbox of odd-side protective system after above-mentioned gearbox and also should there is same technique effect, introduce no longer one by one at this.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and other embodiments' difference, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to these embodiments' multiple modification, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an odd-side protective system after gearbox, is characterized in that, comprising:
For detection of the tachogenerator (5) of the speed of a motor vehicle;
For the lockable mechanism that the shifting axle (3) of described gearbox is carried out to locking operation;
Receive the checkout value of described tachogenerator (5) and in the time that it is greater than unlatching predefined value, control the controller (6) that described lockable mechanism starts.
2. odd-side protective system after gearbox as claimed in claim 1; it is characterized in that; also comprise and the neutral position switch (9) of described controller (6) communication connection, described controller (6) is for being greater than the controller of controlling described lockable mechanism startup when described unlatching predefined value and described neutral position switch (9) are opened at described checkout value.
3. odd-side protective system after gearbox as claimed in claim 1, is characterized in that, described lockable mechanism comprises:
By the solenoid valve (7) of described controller (6) control switch, described solenoid valve (7) has the inlet end that the high-grade air outlet (B) of double H valve (2) for coordinating with described shifting axle (3) is communicated with;
The lock-up cylinder (8) being communicated with the outlet side of described solenoid valve (7), described lock-up cylinder (8) has the drive end for being fixedly connected with described shifting axle (3).
4. odd-side protective system after gearbox as claimed in claim 3, is characterized in that, described lock-up cylinder (8) is one-way cylinder.
5. odd-side protective system after gearbox as claimed in claim 1, is characterized in that,
Described controller (6) comprising:
In the time that being greater than described unlatching predefined value, described checkout value controls the first control unit that described lockable mechanism starts;
Be less than and control the second control unit that described lockable mechanism is closed while closing predefined value at described checkout value;
Described in being greater than, described unlatching predefined value closes predefined value.
6. odd-side protective system after gearbox as claimed in claim 5, is characterized in that, described tachogenerator (5) is the speed probe of the output terminal rotating speed of the described gearbox of detection; Described unlatching predefined value is 700RPM, described in to close predefined value be 660RPM.
7. an odd-side guard method after gearbox, is characterized in that, comprises step:
1) detect the speed of a motor vehicle, and obtain checkout value;
2) in the time that checkout value is greater than unlatching predefined value, enter next step;
3) make the shifting axle of gearbox in lockup state.
8. odd-side guard method after gearbox as claimed in claim 7, is characterized in that, described step 2) be specially: in the time that checkout value is greater than described unlatching predefined value and speed changer in neutral, enter step 3).
9. odd-side guard method after gearbox as claimed in claim 7, is characterized in that, described step 2) be specially: the predefined value of closing of opening predefined value and being less than described unlatching predefined value is set;
In the time that checkout value is greater than described unlatching predefined value, enter step 3);
In the time closing predefined value described in checkout value is less than, described shifting axle is in released state;
In the time closing predefined value described in checkout value is greater than and be less than described unlatching predefined value, maintain the current state of described shifting axle.
10. a gearbox, is characterized in that, described gearbox has odd-side protective system after the gearbox as described in claim 1-6 any one.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN103791078A true CN103791078A (en) | 2014-05-14 |
| CN103791078B CN103791078B (en) | 2016-10-05 |
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| CN201210431702.6A Active 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110966402A (en) * | 2019-12-27 | 2020-04-07 | 重庆铁马工业集团有限公司 | Novel gearbox gearshift |
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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 |
| US5411450A (en) * | 1993-04-01 | 1995-05-02 | Oshkosh Truck Corporation | Transit clutchless shifting of an auxiliary transmission |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110966402A (en) * | 2019-12-27 | 2020-04-07 | 重庆铁马工业集团有限公司 | Novel gearbox gearshift |
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| CN103791078B (en) | 2016-10-05 |
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