CN107859737A - A kind of automatically controlled gear shift system of feedforward control - Google Patents
A kind of automatically controlled gear shift system of feedforward control Download PDFInfo
- Publication number
- CN107859737A CN107859737A CN201710903633.7A CN201710903633A CN107859737A CN 107859737 A CN107859737 A CN 107859737A CN 201710903633 A CN201710903633 A CN 201710903633A CN 107859737 A CN107859737 A CN 107859737A
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- CN
- China
- Prior art keywords
- valve
- gear
- oil
- pressure
- automatically controlled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
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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
- F16H61/04—Smoothing ratio shift
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0221—Valves for clutch control systems; Details thereof
Abstract
The invention discloses a kind of automatically controlled gear shift system of feedforward control, it belongs to technical field of engineering machinery.It mainly includes gear selector and speed change valve, gear selector is provided with reversal valve, also include controller, gear selector and speed change valve are connected with controller respectively, speed change valve is provided with time control solenoid valve, time control solenoid valve is connected by pressure regulator valve with reversal valve, the pressure source on the right side of controller passage time control solenoid valve control pressure regulator valve.The present invention realizes the oil-filled independent control of clutch, improves the flexibility of speed Control in the case where ensureing the original various aspects of performance of vehicle, reduces gear shift impact, greatly improves the comfortableness of driving.Present invention is mainly used for loading machine.
Description
Technical field
The invention belongs to technical field of engineering machinery, specifically, more particularly to a kind of automatically controlled change quick change of feedforward control
Gear system.
Background technology
It is well known that the working condition of loading machine is mainly spading operation and loading operation, it is high-efficient homework, complete machine needs
Frequently start to walk-stop, advance-retrogressing gearshift, above action is controlled simultaneously by loading machine gearbox gear system
Realize.At present, loading machine change control system mainly has two kinds：One kind is tradition machinery speed Control mode, is characterized in
There is no extra control device, cost is low, and it is convenient to realize；But the performance due to flexible axle in itself, gear can be caused for a long time by using
It is unintelligible, it cannot hang up on file；In addition, shift process is uncontrollable, most of do not have a buffering course, and shift shock is big.Second is electricity
Sub- variable-speed controller controls gear mode, is characterized in：First, gearshift gear is clear, the problem of abrasion in the absence of flexible axle；The
Two, buffer gear can be increased, speed change boosting is softer；3rd, programme-control is more flexible.
But traditional electronic variable speed control system, its Hydraulic System Principle and mechanical changeover systems compliant, make
Into the problem of the clutch oil-filled time when adjusting speed change boosting curve, being present and gear pressure pressure rising time influences each other,
When wanting to realize that clutch is quickly oil-filled, cause gear boosting soon, shift shock is big；It is on the contrary, it is desirable to realize clutch at a slow speed
When oil-filled, cause gear boosting slow, gearshift, etc. shelves the problems such as.
The content of the invention
It is an object of the invention to overcome drawbacks described above, there is provided a kind of automatically controlled gear shift system of feedforward control, this is
System realizes the oil-filled independent control of clutch, improves speed Control in the case where ensureing the original various aspects of performance of vehicle
Flexibility, gear shift impact is reduced, greatly improve the comfortableness of driving.
The automatically controlled gear shift system of described feedforward control, including gear selector and speed change valve, on gear selector
Provided with reversal valve, in addition to controller, gear selector and speed change valve are connected with controller respectively, and speed change valve is controlled provided with the time
Magnetic valve processed, time control solenoid valve are connected by pressure regulator valve with reversal valve, and controller passage time control solenoid valve control is adjusted
Pressure source on the right side of pressure valve.
Further, the reversal valve includes forward gear reversal valve, 1/2 grade of reversal valve and reverse drive gear reversal valve.
Further, the speed change valve is provided with drive shift magnetic valve, 1/2 grade of magnetic valve and reverse drive gear magnetic valve, advances
Shelves magnetic valve, 1/2 grade of magnetic valve and reverse drive gear magnetic valve commutate with forward gear reversal valve, 1/2 grade of reversal valve and reverse drive gear respectively
Valve connects.
Further, during gearshift, time control solenoid valve is opened, and makes fluid oil return box on the right side of pressure regulator valve, pressure regulator valve left side
Oil circuit is unimpeded, oil-filled to clutch by system oil.
Further, after the oil-filled end of clutch, the pressure of clutch is in the presence of time control solenoid valve, most promotion
To the spring pre-tightening pressure value of pressure regulator valve.
Further, after clutch is full of oil, the control magnetic valve power-off of controller control time, enters system oil pressure and adjust
On the right side of pressure valve.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the present invention sets up pressure regulator valve in the case where ensureing the original various aspects of performance of vehicle, by adjusting the pressure regulator valve right side
Lateral pressure source, the pressure source is adjusted to speed change valve input pressure from original clutch input pressure, i.e., the pressure is only with being
Pressure of uniting is relevant, oil-filled unrelated with clutch；
2nd, time control solenoid valve, passage time control solenoid valve control pressure regulator valve right hand balance pressure, so as to control are set up
The clutch oil-filled time processed；Meanwhile by being adjusted into the oil circuit latus rectum of oil pocket on the right side of pressure regulator valve, control the boosting of speed change pressure
Time；Realize the separate control of clutch oil-filled time and speed change pressure pressure rising time；
3rd, the present invention realizes the oil-filled independent control of clutch, greatly improves the flexibility of speed Control；Meanwhile
Gear pressure pressure rising time and clutch precharge pressure are controlled, gear shift impact is greatly reduced, improves driver comfort.
In addition, by the control to time control solenoid valve, the demarcation of oil-filled time and shift time is carried out according to different gearboxes, is made
Match that more flexible, adaptability is stronger between speed change valve and speed change box clutch.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of invention；
Fig. 2 is the hydraulic schematic diagram of speed change valve.
In figure, 1, time control solenoid valve；2nd, pressure regulator valve；3rd, forward gear reversal valve；4th, 1/2 grade of reversal valve；5th, reverse drive gear
Reversal valve；6th, reverse drive gear magnetic valve；7th, 1/2 grade of magnetic valve；8th, drive shift magnetic valve；9th, gear selector；10th, controller；11、
Speed change valve.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, the automatically controlled gear shift system of feedforward control, including gear selector 9, the and of controller 10
Speed change valve 11, gear selector 9 are provided with reversal valve, and gear selector 9 and speed change valve 11 are connected with controller 10 respectively, speed change
Valve 11 is provided with time control solenoid valve 1, and time control solenoid valve 1 is connected by pressure regulator valve 2 with reversal valve, and controller 10 passes through
Time control solenoid valve 1 controls the pressure source on the right side of pressure regulator valve 2.
As shown in Fig. 2 the reversal valve includes 3,1/2 grades of reversal valves 4 of forward gear reversal valve and reverse drive gear reversal valve 5；Become
Fast valve 11 is provided with 8,1/2 grades of magnetic valves 7 of drive shift magnetic valve and reverse drive gear magnetic valve 6,8,1/2 grades of electromagnetism of drive shift magnetic valve
Valve 7 and reverse drive gear magnetic valve 6 are connected with 3,1/2 grades of reversal valves 4 of forward gear reversal valve and reverse drive gear reversal valve 5 respectively.
The present invention gear shift process be：After vehicle starts, by swing, rotation gear selector 9, realize each
The selection of individual gear, the signal pass to controller 10, and controller 10 controls output signal according to the information of gear selector 9,
Drive three gear drive shift magnetic valves, 8,1/2 grades of magnetic valves 7, reverse drive gear magnetic valve 6 and the time control electricity on speed change valve 11
Magnet valve 1, realize gearshift operation；
The present invention is in use, the oil-filled control process of clutch is：Complete machine start after, as shown in figure 1, using be linked into drive shift as
Example is told about, and promotes gear selector 9 to be placed in F file locations, and controller 10 drives forward gear magnetic valve 8 to work, and drive shift changes
Opened to valve 3, it is oil-filled to forward gear clutch；Meanwhile the driving time of controller 10 control magnetic valve 1 is opened, and makes pressure regulator valve 2 right
Side fluid oil return box, this causes the right atrial pressure of pressure regulator valve 2 to be 0, and now, the adjustment left side oil circuit of pressure regulator valve 2 is unimpeded in time, makes system
It is oil-filled to clutch that oil circuit enters forward gear clutch.Because now time control solenoid valve 1 must be electric, cause forward gear clutch
Pressure can only establish the preload pressure value of the spring of pressure regulator valve 2 after charging oil, and can not continue to be increased to system pressure, so as to real
The oil-filled independent control of clutch is showed.
Controller 10 can give vehicle power transmission after ensuring forward gear clutch full of oil, and according to operating mode judgement
When, then control time control magnetic valve 1 powers off so that system oil pressure enters the right side of pressure regulator valve 2, and passes through the throttling control in oil circuit
System, makes drive shift pressure slowly establish, so as to realize the separate control of clutch oil-filled time and speed change pressure pressure rising time
System.
The present invention in use, 1/2 grade and the oil-filled control process of reverse drive gear clutch as above.
Claims (6)
1. a kind of automatically controlled gear shift system of feedforward control, including gear selector (9) and speed change valve (11), gear selector
(9) it is provided with reversal valve, it is characterised in that：Also include controller (10), gear selector (9) and speed change valve (11) respectively with control
Device (10) connection processed, speed change valve (11) are provided with time control solenoid valve (1), and time control solenoid valve (1) passes through pressure regulator valve (2)
It is connected with reversal valve, the pressure source on the right side of controller (10) passage time control magnetic valve (1) control pressure regulator valve (2).
2. the automatically controlled gear shift system of feedforward control according to claim 1, it is characterised in that：The reversal valve includes
Forward gear reversal valve (3), 1/2 grade of reversal valve (4) and reverse drive gear reversal valve (5).
3. the automatically controlled gear shift system of feedforward control according to claim 2, it is characterised in that：The speed change valve (11)
It is provided with drive shift magnetic valve (8), 1/2 grade of magnetic valve (7) and reverse drive gear magnetic valve (6), drive shift magnetic valve (8), 1/2 grade of electricity
Magnet valve (7) and reverse drive gear magnetic valve (6) respectively with forward gear reversal valve (3), 1/2 grade of reversal valve (4) and reverse drive gear reversal valve (5)
Connection.
4. the automatically controlled gear shift system of feedforward control according to any one of claim 1 to 3, it is characterised in that：Change
During gear, time control solenoid valve (1) is opened, and makes fluid oil return box on the right side of pressure regulator valve (2), pressure regulator valve (2) left side oil circuit is unimpeded, leads to
It is oil-filled to clutch to cross system oil.
5. the automatically controlled gear shift system of feedforward control according to claim 4, it is characterised in that：The oil-filled end of clutch
Afterwards, the pressure of clutch is in the presence of time control solenoid valve (1), up to the spring pre-tightening pressure value of pressure regulator valve (2).
6. the automatically controlled gear shift system of feedforward control according to claim 5, it is characterised in that：Clutch is full of oil
Afterwards, controller (10) control time control magnetic valve (1) power-off, system oil pressure is made to enter on the right side of pressure regulator valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710903633.7A CN107859737B (en) | 2017-09-29 | 2017-09-29 | Feedforward control electric control speed change gear shifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710903633.7A CN107859737B (en) | 2017-09-29 | 2017-09-29 | Feedforward control electric control speed change gear shifting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107859737A true CN107859737A (en) | 2018-03-30 |
| CN107859737B CN107859737B (en) | 2020-05-19 |
Family
ID=61698329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710903633.7A Active CN107859737B (en) | 2017-09-29 | 2017-09-29 | Feedforward control electric control speed change gear shifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859737B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296744A (en) * | 2018-09-21 | 2019-02-01 | 杭州悦克智控科技有限公司 | A kind of hydraulic control system and method reducing loading machine shift shock |
| CN114776801A (en) * | 2022-04-18 | 2022-07-22 | 哈尔滨东安汽车发动机制造有限公司 | Feed-forward control method for clutch pressure in automatic transmission garage shifting gear shifting |
Citations (7)
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| CN2617982Y (en) * | 2003-05-13 | 2004-05-26 | 浙江临海海宏集团有限公司 | Two front and one rear electric and hydraulic speed control valve |
| CN200989439Y (en) * | 2006-09-21 | 2007-12-12 | 徐州工程机械科技股份有限公司 | Electrohydraulic control fix axle type power gearshifting speed variator |
| CN201152297Y (en) * | 2007-12-28 | 2008-11-19 | 天津工程机械研究院 | Engineering machinery speed-changer electrohydraulic gear shifting control valve |
| CN103032562A (en) * | 2012-12-14 | 2013-04-10 | 同济大学 | Shifting stable combination valve of power shifting speed changer and shifting and pressure regulating system |
| CN103574013A (en) * | 2013-11-01 | 2014-02-12 | 江苏柳工机械有限公司 | Flow sensitive type buffer device |
| CN203627763U (en) * | 2013-11-25 | 2014-06-04 | 山东临工工程机械有限公司 | Gearbox control device capable of achieving downshift protection and bus communication |
| CN206206569U (en) * | 2016-11-04 | 2017-05-31 | 吉林大学 | For the auxiliary regulator of loading machine shift control valve |
-
2017
- 2017-09-29 CN CN201710903633.7A patent/CN107859737B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2617982Y (en) * | 2003-05-13 | 2004-05-26 | 浙江临海海宏集团有限公司 | Two front and one rear electric and hydraulic speed control valve |
| CN200989439Y (en) * | 2006-09-21 | 2007-12-12 | 徐州工程机械科技股份有限公司 | Electrohydraulic control fix axle type power gearshifting speed variator |
| CN201152297Y (en) * | 2007-12-28 | 2008-11-19 | 天津工程机械研究院 | Engineering machinery speed-changer electrohydraulic gear shifting control valve |
| CN103032562A (en) * | 2012-12-14 | 2013-04-10 | 同济大学 | Shifting stable combination valve of power shifting speed changer and shifting and pressure regulating system |
| CN103574013A (en) * | 2013-11-01 | 2014-02-12 | 江苏柳工机械有限公司 | Flow sensitive type buffer device |
| CN203627763U (en) * | 2013-11-25 | 2014-06-04 | 山东临工工程机械有限公司 | Gearbox control device capable of achieving downshift protection and bus communication |
| CN206206569U (en) * | 2016-11-04 | 2017-05-31 | 吉林大学 | For the auxiliary regulator of loading machine shift control valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296744A (en) * | 2018-09-21 | 2019-02-01 | 杭州悦克智控科技有限公司 | A kind of hydraulic control system and method reducing loading machine shift shock |
| CN114776801A (en) * | 2022-04-18 | 2022-07-22 | 哈尔滨东安汽车发动机制造有限公司 | Feed-forward control method for clutch pressure in automatic transmission garage shifting gear shifting |
| CN114776801B (en) * | 2022-04-18 | 2024-03-22 | 哈尔滨东安汽车发动机制造有限公司 | Feedforward control method for clutch pressure in automatic transmission garage shifting |
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| Publication number | Publication date |
|---|---|
| CN107859737B (en) | 2020-05-19 |
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Denomination of invention: An electronically controlled variable speed shift system with feedforward control Effective date of registration: 20211217 Granted publication date: 20200519 Pledgee: Industrial and Commercial Bank of China Limited Linyi Economic Development Zone sub branch Pledgor: SHANDONG LINGONG CONSTRUCTION MACHINERY Co.,Ltd. Registration number: Y2021980015222 |