CN101487531A - Hydraulic control circuit for shift of transmission - Google Patents
Hydraulic control circuit for shift of transmission Download PDFInfo
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- CN101487531A CN101487531A CNA2009100467291A CN200910046729A CN101487531A CN 101487531 A CN101487531 A CN 101487531A CN A2009100467291 A CNA2009100467291 A CN A2009100467291A CN 200910046729 A CN200910046729 A CN 200910046729A CN 101487531 A CN101487531 A CN 101487531A
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- valve
- directional control
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- single channel
- channel selector
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Abstract
The invention relates to a hydraulic control circuit for gearbox shift, comprising a plurality of shift oil cylinders (500, 600, 700, 800); wherein, the shift oil cylinders (500, 600, 700, 800) are respectively connected with a first multi-channel conversion valve (300), the first multi-channel conversion valve (300) is connected with a second multi-channel conversion valve (400), and the second multi-channel conversion valve (400) is respectively connected with a first one-way reversing valve and a second one-way reversing valve (100, 200). For the whole hydraulic circuit, the invention adopts four valves which can realize the function of the original seven valves, so that the cost is greatly reduced; furthermore, the volume of the electromechanical mechanism composed of the valves is reduced, and as the number of valves is reduced, the failure occurrence rate is also lowered.
Description
Technical field
The present invention relates to the automobile hydraulic field, is a kind of hydraulic control circuit that speed changer is shifted gears specifically.
Background technique
Often there is a hydraulic control system in typical speed changer, according to the running state of vehicle, optionally operates to change power by this hydraulic control system.Various such hydraulic control systems are developed voluntarily by the vehicular manufacturer.As the DQ250 of Volkswagen a kind of six speed transmission system that comes to this by hydraulic control circuit control.Having seven valves in this oil hydraulic circuit, is respectively two safety valves, four switch electromagnetic valves and a multi-way valve.Multi-way valve is pressed onto it on home position by a spring, the switching retaining that can carry out 1,3,6 retainings and reverse gear on home position.When multi-way valve was charged, multi-way valve obtained oil pressure, and along the opposite direction of acting force of the spring, it is pressed onto the working position, so just can carry out the switching of 2,4,5 retainings and neutral.By the combination of these valves, the control oil hydraulic circuit just can carry out the operation of eight gear shift fork actions, to realize gearshift.But because the hydraulic element in the loop are too many, it is complicated not only to cause oil circuit to connect, and the loop is bulky, is unfavorable for control.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of hydraulic pressure control loop system, can reduce the quantity of valve, when simplifying hydraulic element, reduces the loop volume, reduces rate of breakdown and cost.
The present invention is by the following technical solutions:
A kind of hydraulic control circuit for shift of transmission, comprise a plurality of gear oil cylinders, described gear oil cylinder is connected with first multiple directional control valve respectively, and first multiple directional control valve is connected with one second multiple directional control valve again, and this second multiple directional control valve is connected with first, second single channel selector valve respectively.
Preferably, described second multiple directional control valve has return opening a, c, e, filler opening b, d, oil outlet f, g, h, i; Described filler opening b, d are connected with first, second single channel selector valve respectively, and described oil outlet f, g, h, i are connected with first multiple directional control valve respectively.
Preferably, described first, second single channel selector valve and first, second multiple directional control valve are formed by main valve and electric liquid pilot valve.
Preferably, the pilot valve of described first, second multiple directional control valve is an electro hydraulic on-off valve.
Preferably, the pilot valve of described first, second single channel selector valve is an electro-hydraulic proportional valve.
The present invention has replaced four original switch electromagnetic valves by second multiple directional control valve, only needs one second multiple directional control valve of control, just can realize same control function.Two filler openings of this second multiple directional control valve are connected with first, second single channel selector valve, and four oil outlets are connected with first multiple directional control valve.The pilot valve of second multiple directional control valve is a switch valve, promptly switch valve get electric or not electric, make guiding valve produce an action, switch oil outlet.Second multiple directional control valve is the two-position four-way valve, and first multiple directional control valve is two eight logical valves, and its operating principle and second multiple directional control valve are together.For whole oil hydraulic circuit, adopted four valves altogether, these four valves just can be realized original seven functions that valve is realized, on cost, will reduce greatly, and the volume by dynamo-electric mechanism that these valves are formed will diminish, because the minimizing of valve, rate of breakdown also will reduce.
Description of drawings
Fig. 1 is the hydraulic control circuit for shift of transmission that the present invention relates to, shown in state be each valve all not electric, the motion of no fork.
Fig. 2, Fig. 3 are first kind of state, the oil circuit schematic representation of circuit controls 1/3 gear oil cylinder.Wherein Figure 2 shows that fork push to 3 the retaining, Figure 3 shows that fork push to 1 the retaining.
Fig. 4 is second kind of state, the oil circuit schematic representation of circuit controls 6/R gear oil cylinder (pilot valve of each valve and first, second single channel selector valve omit).
Fig. 5 is the third state, the oil circuit schematic representation of circuit controls 5/N gear oil cylinder (pilot valve of each valve and first, second single channel selector valve omit).
Fig. 6 is the 4th a kind of state, the oil circuit schematic representation of circuit controls 2/4 gear oil cylinder (pilot valve of each valve and first, second single channel selector valve omit).
Embodiment
Be illustrated in figure 1 as oil circuit figure of the present invention.In hydraulic control circuit involved in the present invention, have four valves, four gear oil cylinders 500,600,700,800 are to select eight gears, and wherein six speed are kept off (being respectively 1,2,3,4,5,6 retainings) and neutral N, the R that reverses gear.By the combination of valve, with 500,600,700,800 motions of control gear oil cylinder, be connected with shift fork on every gear oil cylinder, oil cylinder promotes to drive shift fork back and forth and selects gear.Four valves are respectively first, second multiple directional control valves 300,400, first, second single channel selector valve 100,200.First, second single channel selector valve 100,200 main valves are regulating slide valve, and electro-hydraulic proportional valve is as pilot valve, switching that can not only operated valve, and can also control flow rate.First, second single channel selector valve 100,200 is connected with second multiple directional control valve 400 respectively, and second multiple directional control valve 400 has return opening a, c, e, filler opening b, d, oil outlet f, g, h, i.Second multiple directional control valve, 400 main valves are guiding valves, and electro hydraulic on-off valve is as pilot valve.When switch valve was opened, guiding valve carried out an action, and two filler opening b, d are connected with wherein two oil outlet g, i, and two oil outlet f, h are connected with return opening a, c in addition; When switch valve cuts out, the another action of guiding valve, filler opening b, d switch to oil outlet f, h and are connected, and two oil outlet g, i are connected with return opening c, e in addition.First multiple directional control valve 300 has four filler openings to be connected with second multiple directional control valve 400, also have eight oil outlets, be connected with four gear oil cylinders 500,600,700,800 respectively in twos, the inside annexation principle of first multiple directional control valve 300 is with second multiple directional control valve 400, also be that main valve is a guiding valve, electro hydraulic on-off valve is as pilot valve.
For whole oil hydraulic circuit, adopted four valves altogether, these four valves just can be realized original seven functions that valve is realized, on cost, will reduce greatly, and the volume by dynamo-electric mechanism that these valves are formed will diminish, because the minimizing of valve, rate of breakdown also will reduce.
Under the state that shown in Figure 1 is first multiple directional control valve 300 and second multiple directional control valve 400 and the first single channel selector valve 100 and the second single channel selector valve 200 is not electricly, there is not the shift fork motion this moment.
Fig. 2-6 is the schematic representation of each state, and wherein institute's logical oil circuit route overstriking is represented.
Fig. 2, shown in Figure 3 be when first multiple directional control valve 300 not, second multiple directional control valve 400 not when electric, the switch valve of first multiple directional control valve 300 cuts out, second multiple directional control valve, 400 switch valves cut out, filler opening b is connected with oil outlet f, filler opening d is connected with oil outlet h, and return opening c, e are connected with oil outlet g, i, circuit controls 1/3 gear oil cylinder 500 (i.e. 3 and 1 retaining shift fork); When the first single channel selector valve 100 electric, the second single channel selector valve 200 not when electric, the first single channel selector valve, 100 switch valves are opened, the second single channel selector valve, 200 switch valves cut out, oil pressure is pushed shift fork to 3 and is kept off, and sees Fig. 2; When the second single channel selector valve 200 electric, the first single channel selector valve 100 not when electric, the first single channel selector valve, 100 switch valves cut out, the second single channel selector valve, 200 switch valves are opened, oil pressure is pushed shift fork to 1 and is kept off, and sees Fig. 3.
Shown in Figure 4 is to get when first multiple directional control valve 300, second multiple directional control valve 400 not when electric, the switch valve of first multiple directional control valve 300 is opened, second multiple directional control valve, 400 switch valves cut out, filler opening b is connected with oil outlet f, filler opening d is connected with oil outlet h, and return opening c, e are connected with oil outlet g, i, circuit controls 6/R gear oil cylinder 600 (being R and 6 retaining shift forks); When the first single channel selector valve 100 electric, the second single channel selector valve 200 not when electric, the first single channel selector valve, 100 switch valves are opened, the second single channel selector valve, 200 switch valves cut out, oil pressure is pushed shift fork to R and is kept off; When the second single channel selector valve 200 electric, the first single channel selector valve 100 not when electric, the first single channel selector valve, 100 switch valves cut out, the second single channel selector valve, 200 switch valves are opened, oil pressure is pushed shift fork to 6 and is kept off.
Shown in Figure 5 is when first multiple directional control valve 300 not, second multiple directional control valve 400 when electric, the switch valve of first multiple directional control valve 300 cuts out, second multiple directional control valve, 400 switch valves are opened, filler opening b is connected with oil outlet g, filler opening d is connected with oil outlet i, and return opening c, e are connected with oil outlet f, h, circuit controls 5/N gear oil cylinder 700 (promptly 5 and N retaining shift fork); When the first single channel selector valve 100 electric, the second single channel selector valve 200 not when electric, the first single channel selector valve, 100 switch valves are opened, the second single channel selector valve, 200 switch valves cut out, oil pressure is pushed shift fork to 5 and is kept off; When the second single channel selector valve 200 electric, the first single channel selector valve 100 not when electric, the first single channel selector valve, 100 switch valves cut out, the second single channel selector valve, 200 switch valves are opened, oil pressure is pushed shift fork to N and is kept off.
Shown in Figure 6 is to get when first multiple directional control valve 300, second multiple directional control valve 400 also when electric, the switch valve of first multiple directional control valve 300 is opened, second multiple directional control valve, 400 switch valves are opened, filler opening b is connected with oil outlet g, filler opening d is connected with oil outlet i, and return opening c, e are connected with oil outlet f, h, circuit controls 2/4 gear oil cylinder 800 (i.e. 2 and 4 retaining shift forks); When the first single channel selector valve 100 electric, the second single channel selector valve 200 not when electric, the first single channel selector valve, 100 switch valves are opened, the second single channel selector valve, 200 switch valves cut out, oil pressure is pushed shift fork to 2 and is kept off; When the second single channel selector valve 200 electric, the first single channel selector valve 100 not when electric, the first single channel selector valve, 100 switch valves cut out, the second single channel selector valve, 200 switch valves are opened, oil pressure is pushed shift fork to 4 and is kept off.
So repeatedly just can be with two multiple directional control valves, two single channel selector valve realizations had both reduced the quantity of valve to the hydraulic control of 8 gears of speed changer, allowed the electromechanical structure of valve composition diminish simultaneously, were more conducive to be integrated on the speed changer.
| Gear | First multiple |
Second multiple |
The first single |
The second single |
| 3 | 0 | 0 | 1 | 0 |
| 1 | 0 | 0 | 0 | 1 |
| |
1 | 0 | 1 | 0 |
| 6 | 1 | 0 | 0 | 1 |
| 5 | 0 | 1 | 1 | 0 |
| N | 0 | 1 | 0 | 1 |
| 2 | 1 | 1 | 1 | 0 |
| 4 | 1 | 1 | 0 | 1 |
Above form wherein 1 is represented electricly for the gearshift logical schematic, and 0 representative is not.
Claims (5)
1. hydraulic control circuit for shift of transmission, comprise a plurality of gear oil cylinders (500,600,700,800), described gear oil cylinder (500,600,700,800) be connected with first multiple directional control valve (300) respectively, it is characterized in that: first multiple directional control valve (300) is connected with one second multiple directional control valve (400) again, and this second multiple directional control valve (400) connects with first, second single channel selector valve (100,200) respectively.
2. hydraulic control circuit for shift of transmission according to claim 1 is characterized in that: described second multiple directional control valve (400) has return opening (a, c, e), filler opening (b, d), oil outlet (f, g, h, i); Described filler opening (b, d) connects with first, second single channel selector valve (100,200) respectively, and described oil outlet (f, g, h, i) is connected with first multiple directional control valve (300) respectively.
3. hydraulic control circuit for shift of transmission according to claim 1 is characterized in that: described first, second single channel selector valve (100,200) and first, second multiple directional control valve (300,400) are formed by main valve and electric liquid pilot valve.
4. hydraulic control circuit for shift of transmission according to claim 3 is characterized in that: the pilot valve of described first, second multiple directional control valve (300,400) is an electro hydraulic on-off valve.
5. hydraulic control circuit for shift of transmission according to claim 3 is characterized in that: the pilot valve of described first, second single channel selector valve (100,200) is an electro-hydraulic proportional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100467291A CN101487531A (en) | 2009-02-26 | 2009-02-26 | Hydraulic control circuit for shift of transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100467291A CN101487531A (en) | 2009-02-26 | 2009-02-26 | Hydraulic control circuit for shift of transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101487531A true CN101487531A (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100467291A Pending CN101487531A (en) | 2009-02-26 | 2009-02-26 | Hydraulic control circuit for shift of transmission |
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| Country | Link |
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| CN (1) | CN101487531A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269199A (en) * | 2011-07-13 | 2011-12-07 | 武汉船用机械有限责任公司 | Bidirectional three-speed motor controller |
| CN103398170A (en) * | 2013-08-19 | 2013-11-20 | 合肥工业大学 | Hydraulic control system for parallel planetary gear train transmission of automobile |
| CN103498821A (en) * | 2013-10-16 | 2014-01-08 | 合肥工业大学 | Hydraulic control system used for speed changer of parallel planetary gear train |
| CN105020391A (en) * | 2015-07-27 | 2015-11-04 | 安徽江淮汽车股份有限公司 | Gear hydraulic control system for gearbox |
| CN105221741A (en) * | 2015-10-13 | 2016-01-06 | 中外合资沃得重工（中国）有限公司 | Loader electrically controlled gearbox hydraulic control device |
| CN107074083A (en) * | 2014-09-19 | 2017-08-18 | 博格华纳瑞典公司 | Hydraulic system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008108977A1 (en) * | 2007-03-02 | 2008-09-12 | Borgwarner Inc. | Hydraulic actuation valve arrangement for dual clutch transmission |
-
2009
- 2009-02-26 CN CNA2009100467291A patent/CN101487531A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008108977A1 (en) * | 2007-03-02 | 2008-09-12 | Borgwarner Inc. | Hydraulic actuation valve arrangement for dual clutch transmission |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269199A (en) * | 2011-07-13 | 2011-12-07 | 武汉船用机械有限责任公司 | Bidirectional three-speed motor controller |
| CN102269199B (en) * | 2011-07-13 | 2013-05-01 | 武汉船用机械有限责任公司 | Bidirectional three-speed motor controller |
| CN103398170A (en) * | 2013-08-19 | 2013-11-20 | 合肥工业大学 | Hydraulic control system for parallel planetary gear train transmission of automobile |
| CN103398170B (en) * | 2013-08-19 | 2015-06-10 | 合肥工业大学 | Hydraulic control system for parallel planetary gear train transmission of automobile |
| CN103498821A (en) * | 2013-10-16 | 2014-01-08 | 合肥工业大学 | Hydraulic control system used for speed changer of parallel planetary gear train |
| CN103498821B (en) * | 2013-10-16 | 2015-11-11 | 合肥工业大学 | For the hydraulic control system of the speed changer of parallel planetary gear train |
| CN107074083A (en) * | 2014-09-19 | 2017-08-18 | 博格华纳瑞典公司 | Hydraulic system |
| US10703184B2 (en) | 2014-09-19 | 2020-07-07 | Borgwarner Sweden Ab | Hydraulic system |
| CN105020391A (en) * | 2015-07-27 | 2015-11-04 | 安徽江淮汽车股份有限公司 | Gear hydraulic control system for gearbox |
| CN105221741A (en) * | 2015-10-13 | 2016-01-06 | 中外合资沃得重工（中国）有限公司 | Loader electrically controlled gearbox hydraulic control device |
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Application publication date: 20090722 |