CN109899511A - Hydraulic control system with limping function and the automatic gear-box using it - Google Patents
Hydraulic control system with limping function and the automatic gear-box using it Download PDFInfo
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- CN109899511A CN109899511A CN201910343328.6A CN201910343328A CN109899511A CN 109899511 A CN109899511 A CN 109899511A CN 201910343328 A CN201910343328 A CN 201910343328A CN 109899511 A CN109899511 A CN 109899511A
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- 206010017577 Gait disturbance Diseases 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 239000000314 lubricant Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 28
- 230000000694 effects Effects 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a kind of hydraulic control system of band limping function and using its automatic gear-box, hydraulic control system is made of high-pressure oil passage, control oil circuit, gear switch oil circuit, locking separation oil circuit, lubricant passage way.By controlling 5 hydraulic actuating mechanism switch states, the switching of P/R/N/D gear is realized, wherein D gear is divided into six gears of D1/D2/D3/D4/D5/D6.The working condition of each executing agency is respectively by 1 solenoid valve control, wherein the solenoid valve of control first clutch, third brake, the 4th brake, the 5th clutch is ratio normal close valve, the solenoid valve for controlling second clutch is ratio normally open valve.Automatic gear-box of the invention enters limping function in failure, can realize reverse gear function, additionally provides two advance limping gears, effectively reduces the risk of gearbox damage, when vehicle being made to break down, can still be driven to repair location and repair.
Description
Technical field
The present invention relates to automobile gearboxes, particularly, are related to a kind of novel hydraulic control system, and hydraulic comprising this
The fast hydraulic automatic gearbox of the front-engine rear-drive 6 of control system.
Background technique
For automobile, other than there is good dynamic property, fuel economy and the performance of discharge, consumer
Comfort and safety to driving, it is also the same to pay close attention to.Limping function be evaluate one of driver comfort and safety it is important
Index.The limping mode of automatic gear-box refers to that automobile when detecting system or unit failure, can guarantee the safety of vehicle,
And the ability for making gearbox have traveling.The limping mode of automatic gear-box refers to the control module when automatic gear-box
(TCU) judge, vehicle breaks down, and may cause transmission internal damage parts or the relevant peace of automatic gear-box occur
When full hidden danger, can control gearbox to enter guard mode is limping mode LHM (Limp Home Mode).If not walking lamely mould
If formula, if taking no action to after the failure occurred, then gearbox may be damaged, or occurred due to emergency braking
Collision and overturn accident of initiation etc..
Summary of the invention
The object of the present invention is to provide one kind can be suitable for large torque commercial vehicle, and novel can be realized limping function
Hydraulic control system, and apply the fast hydraulic automatic gearbox of front-engine rear-drive 6 of the hydraulic control system.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of hydraulic control system of band limping function, it is characterised in that: it is by high-pressure oil passage, gear switch oil circuit, lock
Oil circuit, lubricant passage way and hydraulic actuating unit composition are only separated, the hydraulic actuating unit passes through the first hydraulic execution machine of control
Structure, the second hydraulic actuating mechanism, third hydraulic actuating mechanism, the 4th hydraulic actuating mechanism, the 5th hydraulic actuating mechanism switch
State realizes the switching of P/R/N/D gear, and wherein D gear is divided into six gears of D1/D2/D3/D4/D5/D6, each executing agency
Working condition is respectively by a solenoid valve control, wherein controlling the first hydraulic actuating mechanism, third hydraulic actuating mechanism, the 4th
Hydraulic actuating mechanism, the 5th hydraulic actuating mechanism solenoid valve be ratio normal close valve, control the second hydraulic actuating mechanism electricity
Magnet valve is ratio normally open valve, and normal close valve powers off hydraulic circuit and closes, and normally open valve power-off opens hydraulic circuit.
The limping function of the hydraulic system is mainly the phase interaction by first clutch, the 4th brake, the 5th clutch
With realization.
First hydraulic actuating mechanism for participating in limping function is by first clutch control valve small valve core 2, the first clutch
Device control valve 3 and first clutch 4 form, wherein the first clutch control valve small valve core 2, first clutch control valve 3
It is mounted in the same spool bore, the first clutch control valve 3 is located at the inside of spool bore, and spool bore most inner side is equipped with bullet
Spring, the first clutch control valve small valve core 2 are located at the outside of spool bore, and outermost is closed the spool by plug.
The 4th hydraulic actuating mechanism for participating in limping function is controlled by the 4th brake reversal valve 5, the 4th brake
Valve 6 and the 4th brake 9 composition, wherein the 4th brake reversal valve 5 is mounted in an individual spool bore, hole
Spool is closed by a plug in outside；4th brake control valve 6 is mounted in an individual spool bore, outside hole
Spool is closed by a plug side.
It is described participate in limping function the 5th hydraulic actuating mechanism by the 5th clutch feedback pressure control valve the 7, the 5th from
Clutch 8, the 5th clutch control valve small valve core 10 and the 5th clutch control valve 11 composition, wherein the 5th clutch is anti-
Feed voltage force control valve 7 is mounted in an individual spool bore, and positioned at the inside of spool bore, the outside of the spool is equipped with a bullet
Spring, outermost are closed by plug；The 5th clutch control valve small valve core 10 and the installation of the 5th clutch control valve 11
In the same spool bore, the 5th clutch control valve 11 is located at the inside of spool bore, and spool bore most inner side is equipped with spring,
The 5th clutch control valve small valve core 10 is located at the outside of spool bore, and outermost is closed the spool by plug.
Automatic gear-box with the hydraulic control system with limping function of the invention, control module (TCU) disconnect electricity
Source, the equal no power of each solenoid valve of gearbox, only second clutch solenoid valve powers off fuel feeding at this time, and second clutch is made to be in work
Make state, each gear is that two executive components realize front-engine rear-drive when working together.
When the shift valve 1 of automatic gear-box is in R file location, the pressure oil of working connection passes through 1 place valve of shift valve at this time
The channel that core cavity is formed enters the rightmost side of 6 place spool chamber of the 4th brake control valve, make the 4th brake control valve 6 to
It moves left, while being also the rightmost side of spool chamber where the 4th brake reversal valve 5 is moved to, pressure oil is through working connection by the
The channel that four brake control valves 6 and 5 place spool chamber of the 4th brake reversal valve are formed enters in the 4th brake 9, makes
4th brake 9 works normally.
When gearbox is in D grades, and gear, at 1-3 grades, the 5th clutch feedback pressure control valve 7 is in spring force at this time
Under the action of be moved to the rightmost side of spool chamber where the spool, the feedback pressure of second clutch is by the 5th clutch feedback
The channel that 7 place spool chamber of pressure-control valve is formed makes first clutch control valve small valve core 2 move right, and pushes the first clutch
Device control valve 3 moves right simultaneously, and the channel that the pressure oil of working connection is formed through 1 spool chamber of shift valve enters first clutch control
The channel that 3 place spool chamber of valve processed is formed enters first clutch 4, and first clutch 4 works normally at this time.
When gearbox is in D grades, and gear is when entering failure for 4-6 grades, is at this time that there are pressure oils in the 5th clutch 7
, 8 oil pressure of the 5th clutch makes the 5th clutch feedback pressure control valve 7 that the effect of spring force be overcome to be moved to the spool at this time
The feedback pressure of the leftmost side of place spool chamber, second clutch passes through 7 place spool of the 5th clutch feedback pressure control valve
The channel that chamber is formed makes the 5th clutch control valve small valve core 10 move right, and pushes the 5th clutch control valve 11 simultaneously to the right
Mobile, the channel that the pressure oil of working connection is formed through 1 spool chamber of shift valve enters 11 place spool chamber of the 5th clutch control valve
The channel of formation enters the 5th clutch 8, and the 5th clutch works normally at this time.
The utility model has the advantages that novel hydraulic control system and function of walking lamely accordingly of the invention, the function can make automatically
Gearbox enters limping function in failure, can realize reverse gear function, additionally provides two advance limping gears.Adequately
The personal safety of passenger is considered, gearbox can be made to enter high-grade limping at high speeds, prevents speed ratio variation excessive, makes
To lose control of one's vehicle, while also the risk of gearbox damage is effectively reduced.Enable driver when vehicle breaks down, still may be used
Vehicle be driven to repair location repair with safety.
Detailed description of the invention
Fig. 1 is the hydraulic control system configuration schematic diagram with limping function of the embodiment of the present invention.
Fig. 2 is the reversing limping function operation schematic diagram of the hydraulic control system of the embodiment of the present invention.
Fig. 3 is the low-grade location limping function operation schematic diagram of the hydraulic control system of the embodiment of the present invention.
Fig. 4 is the high tap position limping function operation schematic diagram of the hydraulic control system of the embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
It walks lamely the present embodiment provides hydraulic control system and accordingly function, hydraulic control system is by high-pressure oil passage, gear
Switch oil circuit, locking separation oil circuit, lubricant passage way composition.By 5 hydraulic actuating mechanisms of control (first clutch, second from
Clutch, third brake, the 4th brake, the 5th clutch) switch state, realize the switching of P/R/N/D gear, wherein D gear point
For six gears of D1/D2/D3/D4/D5/D6.The working condition of each executing agency respectively by 1 solenoid valve control, wherein
Control first clutch, third brake, the 4th brake, the 5th clutch solenoid valve be ratio normal close valve, control the
The solenoid valve of two clutches is ratio normally open valve.Normal close valve powers off hydraulic circuit and closes, and normally open valve power-off opens hydraulic circuit.
In special operation condition, the control module (TCU) of automatic gear-box disconnects power supply, and each solenoid valve of gearbox is obstructed
Electricity.Only have second clutch solenoid valve to power off fuel feeding at this time, keeps second clutch in running order, before provided in this embodiment
Postponing and driving each gear of hydraulic automatic gearbox is that two executive components are just able to achieve when working together.What limping function was realized
Hydraulic principle schematic diagram such as Fig. 1, by 1 shift valve, 2 first clutch control valve small valve cores, 3 first clutch control valves, 4
One clutch, 5 the 4th brake reversal valves, 6 the 4th brake control valves, 7 the 5th clutch feedback pressure control valves, 8 the 5th
Clutch, 9 the 4th brakes, 10 the 5th clutch control valve small valve cores, 11 the 5th clutch control valves composition.
The realization of hydraulic control system limping function provided in this embodiment is divided into 3 kinds of situations.
The first situation is to enter failure when gearbox-gear is in reverse gear or reuse after a failure reverse gear (R grades)
When, as shown in Fig. 2 reversing limping function operation schematic diagram.
1 shift valve of hydraulic package, 5 the 4th brake reversal valves, 6 the 4th brake control valves, 9 of stage participation work
4th brake.When 1 shift valve of gearbox is in R file location, (its pressure is higher than the second clutch to the pressure oil of working connection at this time
Device feedback pressure) it is entered where 6 the 4th brake control valves by the channel (such as Fig. 2) that spool chamber where 1 shift valve is formed
The rightmost side of spool chamber is moved to the left 6 the 4th brake control valves, while being also that 5 the 4th brake reversal valves are moved to institute
In the rightmost side of spool chamber, pressure oil is through working connection by spool chamber shape where 6 the 4th brake control valves and 5 the 4th brakes
At channel enter in 9 the 4th brakes, make the 4th brake work normally.The fast liquid of the front-engine rear-drive 6 of the present embodiment at this time
Power automatic gear-box is in reverse gear, and when 1 shift valve is in other gears outside R grades, the pressure oil of working connection cannot be introduced into 9
In 4th brake, then 9 the 4th brakes can not work.
When second situation is reuses drive shift (D grades) after gearbox-gear enters failure or failure at 1-3 grades,
As shown in Fig. 3 low-grade location limping function operation schematic diagram.The fast hydraulic automatic gearbox of the front-engine rear-drive 6 of the present embodiment at 1-3 grades,
5th clutch does not work.
The hydraulic package that the stage participates in work is 1 shift valve, 2 first clutch control valve small valve core, 3 first clutch
Control valve, 4 first clutches, 7 the 5th clutch feedback pressure control valves, 8 the 5th clutches, 10 the 5th clutch control valves are small
Spool, 11 the 5th clutch control valves.When gearbox is in D grades, and gear is at 1-3 grades, at this time 7 the 5th clutch feedback pressure
The rightmost side of spool chamber where force control valve is moved to the spool under spring force, the feedback pressure warp of second clutch
The channel that spool chamber where crossing 7 the 5th clutch feedback pressure control valves is formed makes 2 first clutch control valve small valve cores to the right
It is mobile, push 3 first clutch control valves to move right simultaneously, the pressure oil of working connection forms logical through 1 shift valve spool chamber
The channel that spool chambers where road enters 3 first clutch control valves are formed enters 4 first clutches, and 4 first clutches are being just at this time
The gearbox of often work, the present embodiment enters 3 grades.
The third situation is when gearbox-gear is when entering failure for 4-6 grades, such as Fig. 4 high tap position limping function operation schematic diagram
It is shown.At 4-6 grades, the 5th clutch works the fast hydraulic automatic gearbox of the front-engine rear-drive 6 of the present embodiment.
The hydraulic package that the stage participates in work is 1 shift valve, 2 first clutch control valve small valve core, 3 first clutch
Control valve, 4 first clutches, 7 the 5th clutch feedback pressure control valves, 8 the 5th clutches, 10 the 5th clutch control valves are small
Spool, 11 the 5th clutch control valves.When gearbox is in D grades, and gear is when entering failure for 4-6 grades, 7 the 5th clutch at this time
There are pressure oils in device, and 7 the 5th clutch pressures (pressure is higher than second clutch feedback pressure) make 7 the 5th clutches at this time
Device feedback pressure control valve overcomes the effect of spring force to be moved to the leftmost side of spool chamber where the spool, second clutch it is anti-
Feed voltage power makes 10 the 5th clutch control valves by the channel that spool chamber where 7 the 5th clutch feedback pressure control valves is formed
Small valve core moves right, and 11 the 5th clutch control valves is pushed to move right simultaneously, and the pressure oil of working connection is through 1 shift valve core
The channel that spool chamber where the channel that chamber is formed enters 11 the 5th clutch control valves is formed enters 8 the 5th clutches, and at this time 8 the
Five clutches work normally, and the gearbox of the present embodiment enters 5 grades.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention
Within；The technology that the present invention is not directed to can be realized by the prior art.
Claims (8)
1. a kind of hydraulic control system of band limping function, it is characterised in that: it is by high-pressure oil passage, gear switch oil circuit, locking
Separate oil circuit, lubricant passage way and hydraulic actuating unit composition, the hydraulic actuating unit by control the first hydraulic actuating mechanism,
Second hydraulic actuating mechanism, third hydraulic actuating mechanism, the 4th hydraulic actuating mechanism, the 5th hydraulic actuating mechanism switch shape
State realizes the switching of P/R/N/D gear, and wherein D gear is divided into six gears of D1/D2/D3/D4/D5/D6, the work of each executing agency
Make state respectively by a solenoid valve control, wherein controlling the first hydraulic actuating mechanism, third hydraulic actuating mechanism, the 4th liquid
Pressure actuator, the 5th hydraulic actuating mechanism solenoid valve be ratio normal close valve, control the second hydraulic actuating mechanism electromagnetism
Valve is ratio normally open valve, and normal close valve powers off hydraulic circuit and closes, and normally open valve power-off opens hydraulic circuit.
2. the hydraulic control system of band limping function according to claim 1, it is characterised in that: the participation limping function
The first hydraulic actuating mechanism by first clutch control valve small valve core (2), first clutch control valve (3) and first clutch
(4) it forms, wherein the first clutch control valve small valve core (2), first clutch control valve (3) are mounted on the same spool
In hole, the first clutch control valve (3) is located at the inside of spool bore, and spool bore most inner side is equipped with spring, described first from
Clutch control valve small valve core (2) is located at the outside of spool bore, and outermost is closed the spool by plug.
3. the hydraulic control system of band limping function according to claim 1, it is characterised in that:
The 4th hydraulic actuating mechanism for participating in limping function is by the 4th brake reversal valve (5), the 4th brake control valve
(6) it is formed with the 4th brake (9), wherein the 4th brake reversal valve (5) is mounted in an individual spool bore, hole
Outside spool is closed by a plug；4th brake control valve (6) is mounted in an individual spool bore, hole
Outside spool is closed by a plug.
4. the hydraulic control system of band limping function according to claim 1, it is characterised in that:
The 5th hydraulic actuating mechanism for participating in limping function is by the 5th clutch feedback pressure control valve (7), the 5th clutch
Device (8), the 5th clutch control valve small valve core (10) and the 5th clutch control valve (11) composition, wherein the 5th clutch
Feedback pressure control valve (7) is mounted in an individual spool bore, and positioned at the inside of spool bore, the outside of the spool is equipped with one
Spring, outermost are closed by plug；The 5th clutch control valve small valve core (10) and the 5th clutch control valve
(11) it is mounted in the same spool bore, the 5th clutch control valve (11) is located at the inside of spool bore, and spool bore is most interior
Side is equipped with spring, and the 5th clutch control valve small valve core (10) is located at the outside of spool bore, and outermost is by plug by the valve
Core closing.
5. a kind of automatic gear-box, it includes control module (TCU) and shift valve (1), it is characterised in that: it uses claim
Hydraulic control system with limping function described in 1, the control module (TCU) disconnect power supply, and each solenoid valve of gearbox is not
It is powered, only second clutch solenoid valve powers off fuel feeding at this time, keeps second clutch in running order, each gear is two
A executive component realizes front-engine rear-drive when working together.
6. automatic gear-box according to claim 5, it is characterised in that:
When the shift valve (1) of automatic gear-box is in R file location, the pressure oil of working connection is by valve where shift valve (1) at this time
The rightmost side of spool chamber, makes the 4th brake control valve where the channel that core cavity is formed enters the 4th brake control valve (6)
(6) it is moved to the left, while being also the rightmost side of spool chamber where the 4th brake reversal valve (5) is moved to, pressure oil is through main oil
Road enters the 4th by the channel that spool chamber where the 4th brake control valve (6) and the 4th brake reversal valve (5) is formed
In brake (9), work normally the 4th brake (9).
7. automatic gear-box according to claim 5, it is characterised in that:
When gearbox is in D grades, and gear, at 1-3 grades, the 5th clutch feedback pressure control valve (7) is in spring force at this time
The feedback pressure of the rightmost side of spool chamber where effect is moved to the spool, second clutch passes through the 5th clutch feedback pressure
The channel that spool chamber where force control valve (7) is formed makes first clutch control valve small valve core (2) move right, push first from
Clutch control valve (3) moves right simultaneously, the channel that the pressure oil of working connection is formed through shift valve (1) spool chamber enter first from
The channel that spool chamber where clutch control valve (3) is formed enters first clutch (4), and first clutch (4) works normally at this time.
8. automatic gear-box according to claim 5, it is characterised in that:
When gearbox is in D grades, and gear is when entering failure for 4-6 grades, is at this time that there are pressure oils in the 5th clutch (7)
, the 5th clutch (8) oil pressure makes the 5th clutch feedback pressure control valve (7) that the effect of spring force be overcome to be moved to this at this time
The feedback pressure of the leftmost side of spool chamber where spool, second clutch passes through the 5th clutch feedback pressure control valve (7) institute
So that the 5th clutch control valve small valve core (10) is moved right in the channel that spool chamber is formed, pushes the 5th clutch control valve
(11) it moves right simultaneously, the channel that the pressure oil of working connection is formed through shift valve (1) spool chamber enters the 5th clutch control
The channel that spool chamber where valve (11) is formed enters the 5th clutch (8), and the 5th clutch (8) works normally at this time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343328.6A CN109899511B (en) | 2019-04-26 | 2019-04-26 | Hydraulic control system with limp function and automatic gearbox using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343328.6A CN109899511B (en) | 2019-04-26 | 2019-04-26 | Hydraulic control system with limp function and automatic gearbox using same |
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| Publication Number | Publication Date |
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| CN109899511A true CN109899511A (en) | 2019-06-18 |
| CN109899511B CN109899511B (en) | 2024-03-22 |
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| CN201910343328.6A Active CN109899511B (en) | 2019-04-26 | 2019-04-26 | Hydraulic control system with limp function and automatic gearbox using same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425274A (en) * | 2019-08-01 | 2019-11-08 | 泸州容大智能变速器有限公司 | A kind of automatic gear-box built-in electronic shift hydraulic system and its control method |
| CN110594405A (en) * | 2019-09-26 | 2019-12-20 | 吉孚汽车技术(浙江)有限公司 | Hydraulic control device for automatic transmission |
| CN113108049A (en) * | 2021-03-26 | 2021-07-13 | 西安法士特汽车传动有限公司 | Electro-hydraulic limping control oil way and method for hybrid transmission |
| CN113464639A (en) * | 2021-06-09 | 2021-10-01 | 贵州大学 | Power-off protection system of heavy hydraulic automatic transmission |
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| CN209856363U (en) * | 2019-04-26 | 2019-12-27 | 南京劲力传动技术有限公司 | Hydraulic control system with limp function and automatic gearbox using same |
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| CN101788051A (en) * | 2010-03-22 | 2010-07-28 | 盛瑞传动股份有限公司 | Hydraulic control system used in failure of electric control system of automatic speed changer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110425274A (en) * | 2019-08-01 | 2019-11-08 | 泸州容大智能变速器有限公司 | A kind of automatic gear-box built-in electronic shift hydraulic system and its control method |
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| CN113108049A (en) * | 2021-03-26 | 2021-07-13 | 西安法士特汽车传动有限公司 | Electro-hydraulic limping control oil way and method for hybrid transmission |
| CN113464639A (en) * | 2021-06-09 | 2021-10-01 | 贵州大学 | Power-off protection system of heavy hydraulic automatic transmission |
| CN113464639B (en) * | 2021-06-09 | 2023-01-24 | 贵州大学 | Power-off protection system of heavy hydraulic automatic transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109899511B (en) | 2024-03-22 |
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