CN208057563U - A kind of gearbox dynamic output control system - Google Patents
A kind of gearbox dynamic output control system Download PDFInfo
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- CN208057563U CN208057563U CN201820483724.XU CN201820483724U CN208057563U CN 208057563 U CN208057563 U CN 208057563U CN 201820483724 U CN201820483724 U CN 201820483724U CN 208057563 U CN208057563 U CN 208057563U
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Abstract
The utility model discloses a kind of gearbox dynamic output control systems,Including main valve,Electric proportional pressure control valve,Pilot operated valve device,Clutch,Accumulator,Controller,Pressure reducing valve and torque-converters,The actuator port U of main valve,The actuator port Q of pressure reducing valve and the actuator port B of pilot operated valve device are all connected with oil sources P,The control port W of the actuator port U connection main valves of main valve,The hydraulic fluid port input terminal of the actuator port D connection clutches of pilot operated valve device and the control port L of pilot operated valve device,The actuator port V of the main valve and actuator port H of pressure reducing valve,The actuator port K of electric proportional pressure control valve,The control port N of electric proportional pressure control valve,The control port M and accumulator of pilot operated valve device are connected,The automatically controlled end of the electric proportional pressure control valve of controller connection,The activating pressure of the utility model clutch reduces with the increase of vehicle brake intensity,Pass through controller,The engaging force of electric proportional pressure control valve and pilot operated valve device control clutch,Realize the partial power output of vehicle,Obtain the effect that speed is substantially reduced.
Description
Technical field
The utility model is related to technical field of engineering machinery, and in particular to a kind of gearbox dynamic output control system.
Background technology
In smooth-riding surface, when driver touches on the brake, vehicle power can be completely cut through at once, and braking can be realized at once, from
And protect complete machine brake and transmission device.However under some special operating modes, such as in descending, user has just stepped on brake
Vehicle, if completely cutting through vehicle power at this time, complete machine car slipping may occur in vehicle, be easy to cause safety accident.On the other hand, one
A little special vehicles, such as loading machine, due to the particularity of work, the requirement for full-vehicle control is high, and driver is past sometimes
Reach job requirements by further decreasing speed while ensureing power output toward needs, but puts to stop and be easy to cause power
Cut-out, working efficiency can not also ensure.Existing gearbox can not seek one between power is completely cut through and is fully engaged
It disclosure satisfy that the equalization point under vehicle speed operation.
Utility model content
To solve deficiency in the prior art, the utility model provides a kind of gearbox dynamic output control system, solves
The technical issues of in the prior art clutch can not export power when vehicle is in half joint state.
In order to realize above-mentioned target, the utility model adopts the following technical solution：
A kind of gearbox dynamic output control system, including main valve, electric proportional pressure control valve, pilot operated valve device, clutch, accumulation of energy
Device, controller, pressure reducing valve and torque-converters, actuator port U, the actuator port Q of pressure reducing valve and the work of pilot operated valve device of the main valve
Hydraulic fluid port B is all connected with oil sources P, the control port W, the actuator port D of the pilot operated valve device of the actuator port U connection main valves of the main valve
Connect the hydraulic fluid port input terminal of clutch and the control port L, the actuator port V of the main valve and the working oil of pressure reducing valve of pilot operated valve device
The control port M and accumulator of mouth H, the actuator port K of electric proportional pressure control valve, the control port N of electric proportional pressure control valve, pilot operated valve device
It is connected, the automatically controlled end of the electric proportional pressure control valve of controller connection, the unloading port G of the electricity proportional pressure control valve, pilot operated valve device
Unloading port C and the unloading port S of pressure reducing valve be all connected with fuel tank, it is dynamic that the actuator port J of the main valve by torque-converters connects other
Force system.
As a kind of prioritization scheme, gearbox dynamic output control system above-mentioned, actuator port H and the electricity ratio of pressure reducing valve
It is also sequentially connected in series filter and throttle valve between the actuator port K of example overflow valve.
As a kind of prioritization scheme, gearbox dynamic output control system above-mentioned：The actuator port J of main valve also passes through peace
Full valve connects fuel tank.
As a kind of prioritization scheme, gearbox dynamic output control system above-mentioned, main valve is the normally opened overflow valve of hydraulic control.
As a kind of prioritization scheme, gearbox dynamic output control system above-mentioned：Pilot operated valve device is Hydraulically-controproportional proportional valve.
As a kind of prioritization scheme, gearbox dynamic output control system above-mentioned：Pressure reducing valve is fixed pressure reducing valve.
The advantageous effect that the utility model is reached：
The engagement state of the utility model clutch reduces with the increase of vehicle brake intensity, when vehicle is in descending
Or when speed operation, gently touch on the brake, but incomplete cut-off power at this time, clutch can be in part joint shape by controller
State controls the engaging force of clutch by controller, electric proportional pressure control valve and pilot operated valve device, realizes the partial power output of vehicle,
But torque is obviously reduced, to which the effect that speed is substantially reduced can completely cut through clutch when most bottom is stepped in brake,
It will not make engine misses；When not touching on the brake, clutch normal engagement, vehicle being capable of normally travel.The utility model can
The ease for operation for increasing vehicle, can meet work requirements of the vehicle under special operation condition.
The utility model is simple in structure, cost is relatively low, and all elements are all made of more mature existing parts, is easy real
It is existing mating.
Description of the drawings
Fig. 1 is the principles of the present invention figure one；
Fig. 2 is the principles of the present invention figure two；
The meaning of reference numeral：1- safety valves；2- main valves；3- electricity proportional pressure control valves；4- pilot operated valve devices；5- clutches；6- is saved
Flow valve；7- accumulators；8- filters；9- controllers；10- pressure reducing valves；11- torque-converters；12- fuel tanks.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and the scope of protection of the utility model cannot be limited with this.
As shown in Figure 1, 2：The utility model discloses a kind of gearbox dynamic output control systems, including main valve 2, electric ratio
Example overflow valve 3, pilot operated valve device 4, clutch 5, accumulator 7, controller 9, pressure reducing valve 10 and torque-converters 11, the actuator port of main valve 2
U, the actuator port Q of the pressure reducing valve 10 and actuator port B of pilot operated valve device 4 is all connected with hydraulic oil source P, and the actuator port U of main valve 2 also connects
Connect the control port W of main valve 2, the hydraulic fluid port input terminal of the actuator port D connections clutch 5 of pilot operated valve device 4 and the control oil of pilot operated valve device 4
Mouth L, the actuator port V of main valve 2 and the actuator port H of pressure reducing valve 10, the actuator port K of electric proportional pressure control valve 3, electric proportional overflow
The control port N of valve 3, the control port M of pilot operated valve device 4 and accumulator 7 are connected, and controller 9 connects the electricity of electric proportional pressure control valve 3
End is controlled, the unloading port S of the unloading port G of electric proportional pressure control valve 3, the unloading port C of pilot operated valve device 4 and pressure reducing valve 10 are all connected with fuel tank 12,
The actuator port J of main valve 2 by torque-converters 11 connect other systems (such as：Hydraulic system, steering and energy-recuperation system
Deng).The effect of accumulator 7 is the pressure change fluctuation for making to enter electric proportional pressure control valve 3 with pilot operated valve device 4 into row buffering to pressure
It is smaller, keep the pressure change of clutch 5 more steady, to reduce the impact that the engagement of clutch 5 and separation process are brought.Controller 9
Associated vehicle operating device, such as brake pedal plate.
Also be sequentially connected in series between the actuator port H of pressure reducing valve 10 and the actuator port K of electric proportional pressure control valve 3 filter 8 and
Throttle valve 6, filter 8 are filtered oil product, promote the stability and service life of hydraulic system；Throttle valve 6 is to entering electricity
The oil sources of proportional pressure control valve 3 throttles, and forms stable pressure drop.
The actuator port J of main valve 2 also connects fuel tank 12 by safety valve 1, and main valve 2 ensures that the activating pressure of clutch 5 exists
Certain section, while ensureing torque-converters 11 at any time has sufficient oil sources to supply (engine does not stop working), safety valve 1
Effect is oil supply pressure value of the limitation into torque-converters 11.
The 2 normally opened overflow valve of preferred hydraulic control of main valve of the present embodiment, 4 preferred Hydraulically-controproportional proportional valve of pilot operated valve device, pressure reducing valve 10 are preferred
Fixed pressure reducing valve.
The invention also discloses the control methods of above-mentioned gearbox dynamic output control system：Specific work process is such as
Under：
When normal vehicle operation (Fig. 1), controller 9 exports peak signal, proportional pressure control valve 3 to electric proportional pressure control valve 3
Spool moves to most right, is completely cut through between actuator port K and unloading port G, and the pressure of the control port M of pilot operated valve device 4 increases at this time
To maximum, for pilot operated valve device 4 under the action of control port M pressure, spool moves to right end, fully switched on actuator port B and work
Make hydraulic fluid port D, oil sources P flows directly into the hydraulic fluid port input terminal (hydraulic control end) of clutch 5, and clutch 5 is in fully engaged condition.
When vehicle, which is in, completely cuts through dynamic regime (stepping on brake) (Fig. 2), controller 9 is defeated to electric proportional pressure control valve 3
Go out minimum signal, electric proportional pressure control valve 3 overcomes spring force to be moved to the left, actuator port under the action of control port N at this time
K and unloading port G realizations are fully switched on, and fluid flows to fuel tank 12, so that the pressure of the control port M of pilot operated valve device 4 is minimized, hydraulic control
Valve 4 is most left to moving in spring force effect bottom spool, completely cuts through actuator port B and actuator port D, realizes actuator port D
With the connection of actuator port C, the pressure of 5 hydraulic fluid port input terminal of clutch is made to minimize, clutch 5 is in and is kept completely separate state.
When vehicle be in it is light touch on the brake state when, range of signal that controller 9 export to electric proportional pressure control valve 3 in zero to
Between peak signal, and the signal strength that controller 9 is exported to electric proportional pressure control valve 3 subtracts with the increase of vehicle brake intensity
Small, the spool of electric proportional pressure control valve 3 is in equilibrium state, electric proportional overflow under the action of automatically controlled end, spring and control port N
The actuator port K and unloading port's G achievement units tap of valve 3 are logical, and pressure reduces with the increase of braking strength at the M of pilot operated valve device 4,
The spool of pilot operated valve device 4 is under the action of control port M, spring pressure and control port L between left end and right end, liquid
Actuator port B and the actuator port D achievement units tap for controlling valve 4 are logical, and clutch 5 is in partially engaged condition, the engagement of clutch 5
State reduces with the increase of vehicle brake state.It when vehicle is in descending or low speed, gently touches on the brake, but at this time not exclusively
Power is cut off, clutch can be in partially engaged condition by controller 9, pass through connecing for 9 indirect control clutch 5 of controller
With joint efforts, the partial power output of vehicle is realized, but torque is obviously reduced, the effect being substantially reduced to speed.Gently stepping on brake
During vehicle, clutch does not skid, only because the engaging force when engaging force of clutch 5 is relative to normally travel has
Reduced, and then reduce the output torque of vehicle, reduces speed.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
The scope of protection of the utility model is also should be regarded as into deformation.
Claims (6)
1. a kind of gearbox dynamic output control system, it is characterised in that：Including main valve (2), electric proportional pressure control valve (3), hydraulic control
Valve (4), clutch (5), accumulator (7), controller (9), pressure reducing valve (10) and torque-converters (11), the work of the main valve (2)
The actuator port B of hydraulic fluid port U, the actuator port Q of pressure reducing valve (10) and pilot operated valve device (4) are all connected with oil sources P, the work of the main valve (2)
Make the control port W of hydraulic fluid port U connection main valves (2), the hydraulic fluid port input of the actuator port D connection clutches (5) of the pilot operated valve device (4)
The control port L, the actuator port V of the main valve (2) and the actuator port H of pressure reducing valve (10) of end and pilot operated valve device (4), electric ratio
The control port M and accumulator of the actuator port K of overflow valve (3), the control port N of electric proportional pressure control valve (3), pilot operated valve device (4)
(7) it is connected, the automatically controlled end of the electric proportional pressure control valve (3) of controller (9) connection, the emptying of the electricity proportional pressure control valve (3)
Mouth G, the unloading port C of pilot operated valve device (4) and the unloading port S of pressure reducing valve (10) are all connected with fuel tank (12), the working oil of the main valve (2)
Mouth J connects other dynamical systems by torque-converters (11).
2. a kind of gearbox dynamic output control system according to claim 1, it is characterised in that：The pressure reducing valve (10)
Actuator port H and the actuator port K of electric proportional pressure control valve (3) between be also sequentially connected in series filter (8) and throttle valve (6).
3. a kind of gearbox dynamic output control system according to claim 1, it is characterised in that：The main valve (2)
Actuator port J also connects fuel tank (12) by safety valve (1).
4. a kind of gearbox dynamic output control system according to claim 1, it is characterised in that：The main valve (2) is
The normally opened overflow valve of hydraulic control.
5. a kind of gearbox dynamic output control system according to claim 1, it is characterised in that：The pilot operated valve device (4)
For Hydraulically-controproportional proportional valve.
6. a kind of gearbox dynamic output control system according to claim 1, it is characterised in that：The pressure reducing valve (10)
For fixed pressure reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483724.XU CN208057563U (en) | 2018-04-04 | 2018-04-04 | A kind of gearbox dynamic output control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483724.XU CN208057563U (en) | 2018-04-04 | 2018-04-04 | A kind of gearbox dynamic output control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057563U true CN208057563U (en) | 2018-11-06 |
Family
ID=63988249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820483724.XU Active CN208057563U (en) | 2018-04-04 | 2018-04-04 | A kind of gearbox dynamic output control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302079A (en) * | 2018-04-04 | 2018-07-20 | 徐工集团工程机械股份有限公司科技分公司 | A kind of gearbox dynamic output control system and control method |
| CN113790251A (en) * | 2021-09-02 | 2021-12-14 | 浙江大学 | Vehicle power system, optimization method and control method |
-
2018
- 2018-04-04 CN CN201820483724.XU patent/CN208057563U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302079A (en) * | 2018-04-04 | 2018-07-20 | 徐工集团工程机械股份有限公司科技分公司 | A kind of gearbox dynamic output control system and control method |
| CN108302079B (en) * | 2018-04-04 | 2023-08-11 | 徐工集团工程机械股份有限公司科技分公司 | Gearbox power output control system and control method |
| CN113790251A (en) * | 2021-09-02 | 2021-12-14 | 浙江大学 | Vehicle power system, optimization method and control method |
| CN113790251B (en) * | 2021-09-02 | 2024-02-06 | 浙江大学 | Vehicle power system, optimization method and control method |
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