CN207989598U - A kind of hydraulic control system of clutch - Google Patents
A kind of hydraulic control system of clutch Download PDFInfo
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- CN207989598U CN207989598U CN201820072527.9U CN201820072527U CN207989598U CN 207989598 U CN207989598 U CN 207989598U CN 201820072527 U CN201820072527 U CN 201820072527U CN 207989598 U CN207989598 U CN 207989598U
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- control valve
- clutch
- valve
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- trepanning
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model provides a kind of hydraulic control system of clutch, including at least two clutches, at least two solenoid valves and at least two control valves；The oil inlet of each solenoid valve be connected to working connection, the oil inlet connection of the oil outlet control valve corresponding with one respectively, and the hydraulic cylinder of the oil outlet of each control valve clutch corresponding with one respectively is connected to；When one of them described control valve is connected, another described control valve is closed.The utility model is by adding two control valves, when in double clutch occur two clutches in combination with situation when, pass through the adjusting of two control valves, it can make one of clutch separation, two clutches are prevented in combination with the case where leading to transmission output shaft and wheel locked occurs.
Description
Technical field
The utility model belongs to machinery field, is related to a kind of hydraulic control system of clutch.
Background technology
It is continuously improved with the requirement of vehicle drive comfort, hydraulic automatic speed variator (AT) and double-clutch automatic gearbox
(DCT) application is more and more extensive.AT and DCT is former in mechanical structure and work as two different automatic transmission types
There are many differences for reason etc., but from the angle of gearshift control, the two control principle having the same is all to pass through clutch
The switching of transmission gear is realized in the control of gearshift procedure.In gearshift procedure, the overlap joint that all there is two clutches controls, and one
A clutch carries out separation control, while another clutch is combined control, finally by the input power of speed changer from one
A gear is transmitted to another gear.
For the clutch control of AT and DCT, the problem of secure context all suffers from clutch interlocking.Fig. 1 show existing
There are a kind of common clutch control principle in technology, the main oil pressure from transmission pressure system, by each straight drive
The proportion adjustment of solenoid valve A, B realize the pressure control of corresponding clutch C, D.In the control system, two clutches C, D
Control it is relatively independent, during clutch shift or when stable state gear, combined if there is the unexpected of inoperative clutch,
It will appear transmission output shaft and wheel locked, speed changer is damaged, or even intact stability occurs and be affected, harm row
The problem of vehicle safety.
Utility model content
The purpose of the utility model is to provide a kind of hydraulic control system of clutch, solve in the prior art it is double from
There is the unexpected of inoperative clutch and combines in clutch, it may appear that the problem of transmission output shaft and wheel locked.
In order to solve the above technical problems, the utility model provides a kind of hydraulic control system of clutch, including at least
Two clutches, at least two solenoid valves and at least two control valves；The oil inlet of each solenoid valve is connected to working connection,
The oil inlet connection of the oil outlet control valve corresponding with one respectively, the oil outlet of each control valve respectively with one
The hydraulic cylinder of the corresponding clutch is connected to；When one of them described control valve is connected, another described control valve is closed.
Further, each control valve all has an inner cavity, and the spool of the control valve is located at the interior intracavitary simultaneously
The inner cavity is divided into first inner chamber and second inner chamber, one is provided in the second inner chamber and connect and is used for the spool
Drive the elastic element of the valve core movement；First be connected to the first inner chamber is offered respectively on each control valve
Trepanning and the second trepanning being connected to the second inner chamber；First trepanning of each control valve connects with the working connection
It is logical；In at least two control valve, the second trepanning of each control valve is connected to the oil outlet of control valve described in another.
Further, at least two clutch includes first clutch and second clutch, at least two electricity
Magnet valve includes the first solenoid valve and second solenoid valve, and at least two control valve includes the first control valve and the second control valve；
The oil inlet of first solenoid valve is connected to the working connection, the oil outlet of first solenoid valve and first control valve
Oil inlet connection, the oil outlet of first control valve is connected to the hydraulic cylinder of the first clutch；Second electromagnetism
The oil inlet of valve is connected to the working connection, and the oil outlet of the second solenoid valve and the oil inlet of second control valve connect
Logical, the oil outlet of second control valve is connected to the hydraulic cylinder of the second clutch；The first of first control valve opens
First trepanning in hole and second control valve is respectively connected to the working connection；Second trepanning of first control valve with
The oil outlet of second control valve is connected to, and the second trepanning of second control valve and the oil outlet of first control valve connect
It is logical.
Further, the model of each solenoid valve is identical, and the model of each control valve is identical.
Further, the elastic element is spring, and one end of the spring is connect with the spool, and the other end is fixed.
Further, the other end of the spring is fixed on the one end of the second inner chamber far from the spool.
Further, first trepanning is set to the one end of the first inner chamber far from the spool, and described second opens
Hole is set to the one end of the second inner chamber far from the spool.
The utility model additionally provides a kind of hydraulic control method of clutch, includes the following steps：
S1：The first solenoid valve and the electric current of second solenoid valve are adjusted, so that first solenoid valve is connected, second electromagnetism
Valve is closed；
S2：The first control valve is connected, the second control valve is made to be closed；
S3：The oil pressure of working connection acted on after the adjusting of first solenoid valve and first control valve first from
The hydraulic cylinder of clutch makes the first clutch combine；
S4：When the first clutch is in bonding state, if the second clutch combines, second control valve
It opens, first control valve is closed, and the first clutch is made to be in discrete state.
Further, each control valve all has an inner cavity, and the spool of control valve is located at the interior intracavitary and will be described interior
Chamber is divided into first inner chamber and second inner chamber, and one is provided in the second inner chamber and is connect with the spool and is used to drive described
The elastic element of valve core movement；Offered respectively on each control valve the first trepanning being connected to the first inner chamber and with
Second trepanning of the second inner chamber connection；First trepanning of each control valve is connected to the working connection；It is described extremely
In few two control valves, the second trepanning of each control valve is connected to the oil outlet of control valve described in another.
Further, the S2 is executed before or after the S1；The S4 is executed after the S3.
Further, first control valve and second control valve are normally closed control valve, when first control valve
During being moved with the direction of spool towards the close second inner chamber of second control valve, first control valve and institute
The second control valve is stated to be switched on.
Further, in first control valve, the hydraulic oil in first inner chamber acts on the pressure size of spool
For P1a, the pressure size that the hydraulic oil in second inner chamber acts on spool is P1b, elastic element acts on the thrust size of spool
For P1c；In second control valve, the pressure size that the hydraulic oil in first inner chamber acts on spool is P2a, in second
The pressure size that hydraulic oil in chamber acts on spool is P2b, the thrust size that elastic element acts on spool is P2c；Described
S2 is specifically included：The hydraulic oil of the working connection enters first control valve by the first trepanning of first control valve
In first inner chamber, make the P1a＞ P1b+P1c, hydraulic oil pushes the spool in described second in the first inner chamber
The direction of chamber moves, and first control valve is made to connect；After first control valve is connected, the oil outlet of first control valve
Hydraulic oil entered by the second trepanning of second control valve in the second inner chamber of second control valve, second control
Pressure in valve processed meets P2a≤P2b+P2c, second control valve is made to be closed.
Further, in the S4, when the first clutch is in bonding state, if the second clutch knot
It closes, the pent process of the first control valve is specific as follows：After the second clutch combines, the hydraulic oil of working connection passes through
The second solenoid valve and second control valve enter the hydraulic cylinder of the second clutch, second control valve it is fuel-displaced
Mouthful hydraulic oil entered by the second trepanning of first control valve in the second inner chamber of first control valve, make described the
Pressure in one control valve meets P1a＜ P1b+P1c, hydraulic oil and elastic element in the second inner chamber of first control valve
Collective effect pushes spool to be moved to the direction close to first inner chamber in spool, and first control valve is made to close, and described first
Clutch separation.
Further, first solenoid valve is identical with the model of the second solenoid valve, first control valve and institute
The model for stating the second control valve is identical.
Compared with prior art, the utility model provides a kind of hydraulic control system of clutch, by adding two
Control valve, when in double clutch occur two clutches in combination with situation when, by the adjusting of two control valves, can make
One of clutch separation, prevent two clutches in combination with leading to transmission output shaft and wheel locked
Situation occurs.
Also, it is optimized by the structure to control valve, realizes the pure hydraulic control between control valve, without electricity
Control avoids the problem of automatically controlled secondary failure leads to not realize clutch separation.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the hydraulic control system of clutch；
Fig. 2 is the structural schematic diagram of the hydraulic control system for the clutch that one embodiment of the utility model provides；
Fig. 3 is the flow diagram of the hydraulic control method for the clutch that one embodiment of the utility model provides.
Wherein, 11- first clutches；12- second clutches；The first solenoid valves of 21-；22- second solenoid valves；31- first
Control valve；The second control valves of 32-；The oil inlet of the first solenoid valves of 211-；The oil inlet of 221- second solenoid valves；The first electricity of 221-
The oil outlet of magnet valve；The oil outlet of 222- second solenoid valves；The oil inlet of the first control valves of 311-；The second control valves of 321- into
Hydraulic fluid port；The oil outlet of the first control valves of 312-；The oil outlet of the second control valves of 322-；The first inner chamber of the first control valves of 3101-；
The second inner chamber of the first control valves of 3102-；The first inner chamber of the second control valves of 3201-；In the second of the second control valves of 3202-
Chamber；The elastic element of the first control valves of 3103-；The elastic element of the second control valves of 3203-；The first of the first control valves of 31a- opens
Hole；Second trepanning of the first control valves of 31b-；First trepanning of the second control valves of 32a-；The second of the second control valves of 32b- opens
Hole；40- working connections.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments to the utility model proposes a kind of clutch hydraulic control system work
It is further described.According to following explanation and claims, will be become apparent from feature the advantages of the utility model.It needs to illustrate
, attached drawing is all made of very simplified form and uses non-accurate ratio, only to it is convenient, lucidly aid in illustrating this
The purpose of utility model embodiment.Same or analogous reference numeral represents same or analogous component in attached drawing.
Fig. 2 is a kind of schematic diagram of the hydraulic control system for clutch that one embodiment of the utility model provides.It please refers to
Fig. 2, a kind of hydraulic control system of clutch, including at least two clutches 11,12, at least two solenoid valves 21,22 and
At least two control valves 31,32；The oil inlet 211,221 of each solenoid valve 21,22 is connected to working connection 40, oil outlet 212,
The oil inlet 311,321 of 222 control valves corresponding with one 31,32 respectively is connected to, and each control valve 31,32 goes out
Hydraulic fluid port 312,322 respectively the clutch corresponding with one 11,12 hydraulic cylinder connection；When one of them described control valve connects
When logical, another described control valve is closed.
In the present embodiment, it by adding two control valves 31,32, is tied simultaneously when two clutches occur in double clutch
When the situation of conjunction, it by the adjusting of two control valves 31,32, can make one of clutch separation, prevent two
Clutch is in combination with the case where leading to transmission output shaft and wheel locked occurs.
As a kind of realization method of the present embodiment, each control valve all has an inner cavity, the valve of the control valve
Core (not marked in figure) is located at the interior intracavitary and the inner cavity is divided into first inner chamber 3101,3201 and second inner chamber
3102,3202, one, which is provided with, in the second inner chamber 3102,3202 is connect with the spool and be used to drive the valve core movement
Elastic element 3103,3203；It offers on each control valve 31,32 and connects with the first inner chamber 3101,3201 respectively
First logical trepanning 31a, 32a and second trepanning 31b, 32b being connected to the second inner chamber 3201,3202；Each control
First trepanning 31a, 32a of valve 31,32 processed is connected to the working connection 40；In at least two control valve 31,32, each
The second trepanning equal 31b, 32b of control valve are connected to the oil outlet 322,312 of control valve described in another.
Wherein, at least two clutch includes first clutch 11 and second clutch 12, at least two electricity
Magnet valve includes the first solenoid valve 21 and second solenoid valve 22, and at least two control valve is controlled including the first control valve 31 and second
Valve 32 processed；The oil inlet of first solenoid valve 21 is connected to the working connection 40, the oil outlet 212 of first solenoid valve 21
It is connected to the oil inlet 311 of first control valve 31, oil outlet 312 and the first clutch of first control valve 31
11 hydraulic cylinder connection；The oil inlet 221 of the second solenoid valve 22 is connected to the working connection 40, the second solenoid valve 22
Oil outlet 222 be connected to the oil inlet 322 of second control valve 32, the oil outlet 322 of second control valve 32 and institute
State the hydraulic cylinder connection of second clutch 12；First trepanning 31a of first control valve 31 and second control valve 32
First trepanning 32a is respectively connected to the working connection 40；Second trepanning 31b of first control valve 31 is controlled with described second
The oil outlet 322 of valve 32 processed is connected to, the oil outlet of the second trepanning 32b and first control valve 31 of second control valve 32
312 connections.
Specifically, when first clutch 11 normally combines, first solenoid valve 21 and first control at this time
Valve 31 is in on-state, and second solenoid valve 22 and second control valve 32 are closed.Once the second clutch
There is improper combination in device 12, at this point, the hydraulic oil of the oil outlet of second control valve 32 will be controlled by described first
Second trepanning 32b of valve 31 processed enters in second inner chamber 3102 so that the hydraulic oil of the second inner chamber 3102 of the first control valve 31
It acts on the pressure of spool and elastic element 3103 acts on the sum of thrust of spool more than the hydraulic oil in first inner chamber 3101
The pressure of spool is acted on, such spool will be carried on the back to push and be moved towards close to the direction of the first inner chamber 3101 so that described
First control valve 31 is closed, and is caused the oil pressure that the first solenoid valve 31 exports that can not act on first clutch 11, is made the first clutch
Device 11 detaches, in this way, just only second clutch 12 is in bonding state, it is therefore prevented that two clutches the feelings combined occur simultaneously
Condition occurs.
In this application, the structure of control valve is not limited in foregoing description, can also be other with interlock function
Two valves, as long as ensure one of open, another is closed.
Preferably, in the present embodiment, the model of each solenoid valve 21,22 is identical, each control
The model of valve 31,32 is identical.In this way, the oil pressure difference exported due to two solenoid valves 21,22 and the control can be reduced
The problem for the regulation and control parameter setting complexity that valve 31,32 output oil pressure different bands are come.
As a kind of implementation of the present embodiment, the elastic element 3103,3203 can be spring, the spring
One end is connect with the spool, and the other end is fixed.Preferably, the other end of the spring be fixed on the second inner chamber 3102,
3202 one end far from the spool.
Since the first inner chamber 3101,3201 of two control valves 31,32 and the volume of second inner chamber 3102,3202 are variations
, two control valves 31,32 feed back to the hydraulic pressure in second inner chamber 3102,3202 by second trepanning 31b, 32b in order to prevent
Oil stream enters first inner chamber 3101,3201, be also prevented from working connection 40 by first trepanning 31a, 32a flow into first inner chamber 3101,
Hydraulic oil in 3201 flows into second inner chamber 3102,3202, and first trepanning 31a, 32a described in the present embodiment is set to described the
One inner cavity, 3101,3201 one end far from the spool, described second trepanning 31b, 32b be set to the second inner chamber 3102,
3202 one end far from the spool.
The hydraulic control method of the clutch of the present embodiment, as shown in figure 3, specifically comprising the following steps：
S1：The electric current for adjusting the first solenoid valve 21 and second solenoid valve 22 makes first solenoid valve 21 connect, and described the
Two solenoid valves 22 are closed；
S2：The first control valve 31 is connected, the second control valve 32 is made to be closed；
S3：The oil pressure of working connection 40 acts on after the adjusting of first solenoid valve 21 and first control valve 31
The hydraulic cylinder of first clutch 11 makes the first clutch 11 combine；
S4：When the first clutch 11 is in bonding state, if the second clutch 12 combines, second control
Valve 32 processed is opened, and first control valve 31 is closed, and the first clutch 11 is made to be in discrete state.
Wherein, the S2 can be executed before or after the S1；The S4 is executed after the S3.
As a kind of realization method of the present embodiment, first control valve 31 and second control valve 32 can be normal
Close control valve, when the spool of first control valve 31 and second control valve 32 towards close to the second inner chamber 3102,
During 3202 direction movement, first control valve 31 and second control valve 32 are switched on.
In the present embodiment, in first control valve 31, the hydraulic oil in first inner chamber 3101 acts on spool
Pressure size is P1a, the pressure size that the hydraulic oil in second inner chamber 3102 acts on spool is P1b, the effect of elastic element 3103
In spool thrust size be P1c；In second control valve 32, the hydraulic oil in first inner chamber 3201 acts on spool
Pressure size be P2a, the pressure size that the hydraulic oil in second inner chamber 3202 acts on spool is P2b, the work of elastic element 3203
Thrust size for spool is P2c。
It is specifically included in the S2：The first trepanning that the hydraulic oil of the working connection 40 passes through first control valve 31
31a enters in the first inner chamber 3101 of first control valve 31, makes the P1a＞ P1b+P1c, liquid in the first inner chamber 3101
Pressure oil pushes the spool to be moved to close to the direction of the second inner chamber 3102, and first control valve 31 is made to connect；It is described
After first control valve 31 is connected, the hydraulic oil of the oil outlet 312 of first control valve 31 passes through second control valve 32
Second trepanning 32b enters in the second inner chamber 3202 of second control valve 32, and the pressure in second control valve 32 meets
P2a≤P2b+P2c, second control valve 32 is made to be closed.
In the S4, when the first clutch 11 is in bonding state, if the second clutch 12 combines, institute
It is specific as follows to state 31 pent process of the first control valve：After the second clutch 12 combines, the hydraulic oil of working connection 40 is logical
It crosses the second solenoid valve 22 and second control valve 32 enters the hydraulic cylinder of the second clutch 12, second control
The hydraulic oil of the oil outlet 322 of valve 32 enters first control valve 31 by the second trepanning 31b of first control valve 31
Second inner chamber 3102 in, so that the pressure in first control valve 31 is met P1a＜ P1b+P1c, first control valve 31
Hydraulic oil and 3103 collective effect of elastic element in second inner chamber 3102 push spool to close to first inner chamber in spool
3101 direction movement, makes first control valve 31 close, the first clutch 11 detaches.
In conclusion the utility model provides a kind of hydraulic control system and control method of clutch, by adding
Two control valves, when in double clutch occur two clutches in combination with situation when, can by the adjusting of two control valves
So that one of clutch separation, two clutches are prevented in combination with leading to transmission output shaft and wheel lock
Dead situation occurs.
Also, it is optimized by the structure to control valve, realizes the pure hydraulic control between control valve, without electricity
Control avoids the problem of automatically controlled secondary failure leads to not realize clutch separation.
Foregoing description is only the description to the utility model preferred embodiment, not to any limit of the scope of the utility model
Calmly, any change, the modification that the those of ordinary skill in the utility model field does according to the disclosure above content, belong to right and want
Seek the protection domain of book.
Claims (7)
1. a kind of hydraulic control system of clutch, which is characterized in that including at least two clutches, at least two solenoid valves with
And at least two control valve；
The oil inlet of each solenoid valve is connected to working connection, the oil inlet of the oil outlet control valve corresponding with one respectively
Connection, the hydraulic cylinder connection of the oil outlet of each control valve clutch corresponding with one respectively；
When one of them described control valve is connected, another described control valve is closed.
2. a kind of hydraulic control system of clutch according to claim 1, which is characterized in that each control valve is equal
With an inner cavity, the spool of the control valve is located at the interior intracavitary and the inner cavity is divided into first inner chamber and second
Chamber is provided with an elastic element for connecting and be used to drive the valve core movement with the spool in the second inner chamber；
The first trepanning being connected to the first inner chamber is offered on each control valve respectively and is connected with the second inner chamber
The second logical trepanning；
First trepanning of each control valve is connected to the working connection；
In at least two control valve, the second trepanning of each control valve connects with the oil outlet of control valve described in another
It is logical.
3. a kind of hydraulic control system of clutch according to claim 2, which is characterized in that at least two clutch
Device includes first clutch and second clutch, and at least two solenoid valve includes the first solenoid valve and second solenoid valve, institute
It includes the first control valve and the second control valve to state at least two control valves；
The oil inlet of first solenoid valve is connected to the working connection, and the oil outlet of first solenoid valve is controlled with described first
The oil inlet of valve processed is connected to, and the oil outlet of first control valve is connected to the hydraulic cylinder of the first clutch；
The oil inlet of the second solenoid valve is connected to the working connection, and the oil outlet of the second solenoid valve is controlled with described second
The oil inlet of valve processed is connected to, and the oil outlet of second control valve is connected to the hydraulic cylinder of the second clutch；
First trepanning of first control valve and the first trepanning of second control valve are respectively connected to the working connection；
Second trepanning of first control valve is connected to the oil outlet of second control valve, and the second of second control valve
Trepanning is connected to the oil outlet of first control valve.
4. a kind of hydraulic control system of clutch according to claim 2, which is characterized in that each solenoid valve
Model is identical, and the model of each control valve is identical.
5. a kind of hydraulic control system of clutch according to claim 2, which is characterized in that the elastic element is bullet
Spring, one end of the spring are connect with the spool, and the other end is fixed.
6. a kind of hydraulic control system of clutch according to claim 5, which is characterized in that the other end of the spring
It is fixed on the one end of the second inner chamber far from the spool.
7. a kind of hydraulic control system of clutch according to claim 2, which is characterized in that the first trepanning setting
In the one end of the first inner chamber far from the spool, second trepanning is set to the second inner chamber far from the spool
One end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820072527.9U CN207989598U (en) | 2018-01-16 | 2018-01-16 | A kind of hydraulic control system of clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820072527.9U CN207989598U (en) | 2018-01-16 | 2018-01-16 | A kind of hydraulic control system of clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989598U true CN207989598U (en) | 2018-10-19 |
Family
ID=63819335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820072527.9U Active CN207989598U (en) | 2018-01-16 | 2018-01-16 | A kind of hydraulic control system of clutch |
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| Country | Link |
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| CN (1) | CN207989598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131401A (en) * | 2018-01-16 | 2018-06-08 | 联合汽车电子有限公司 | The hydraulic control system and control method of a kind of clutch |
-
2018
- 2018-01-16 CN CN201820072527.9U patent/CN207989598U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131401A (en) * | 2018-01-16 | 2018-06-08 | 联合汽车电子有限公司 | The hydraulic control system and control method of a kind of clutch |
| CN108131401B (en) * | 2018-01-16 | 2024-04-26 | 联合汽车电子有限公司 | Hydraulic control system and control method of clutch |
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