CN107448575A - It is a kind of to prevent fluid torque-converter from the method for producing impact when being opened to sliding rub - Google Patents
It is a kind of to prevent fluid torque-converter from the method for producing impact when being opened to sliding rub Download PDFInfo
- Publication number
- CN107448575A CN107448575A CN201710665945.9A CN201710665945A CN107448575A CN 107448575 A CN107448575 A CN 107448575A CN 201710665945 A CN201710665945 A CN 201710665945A CN 107448575 A CN107448575 A CN 107448575A
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- CN
- China
- Prior art keywords
- converter
- fluid torque
- oil pressure
- torque
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/04—Combined pump-turbine units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
Abstract
Prevent fluid torque-converter from the method for producing impact when being opened to sliding rub the invention discloses a kind of, it is characterized in that, automatic gear-box is in coasting mode, fluid torque-converter increases engine torque before sliding rub, the lockup clutch response fluid torque-converter order oil pressure of fluid torque-converter begins setting up oil pressure, engine speed raises with the increase of engine torque, coordinate the fluid torque-converter order oil pressure, so that engine speed increases in the presence of increased engine torque, when the absolute value of engine speed and the difference of the input shaft rotating speed of gearbox is less than N, lockup clutch completion fluid torque-converter slides the control that rubs, fluid torque-converter enters sliding state of rubbing；Rise to turn round by engine and steadily raise engine speed, and coordinate the control of fluid torque-converter order oil pressure to eliminate fluid torque-converter state from being opened to the sliding caused impact that rubs.
Description
Technical field
Prevent fluid torque-converter from the method for producing impact when being opened to sliding rub the present invention relates to a kind of.
Background technology
Automatic gear-box with fluid torque-converter needs fluid torque-converter is counter to hold in the palm engine in coasting mode in order to fuel-efficient,
Prevent engine speed from declining triggering oil-break and recovering.
If fluid torque-converter is in open mode when sliding, it is attached that engine speed can be gradually transitions target idling
Closely, this can cause engine arrive oil-break rotating speed or triggering oil-break recover rotating speed without oil-break.Now just need hydraulic moment changeable
Device reacts on engine by sliding rub, counter to hold in the palm engine rotation, make engine speed remain at oil-break recover rotating speed it
On, so as to ensure the oil-break section of maximum.
Accelerator releasing coasting mode, during fluid torque-converter is by being opened to sliding rub, because engine reacts on fluid power
Torque-converters, and fluid torque-converter slides the actual oil pressure to rub and delay be present relative to order oil pressure, causes oil-filled in fluid torque-converter
First half engine speed can not be pulled on, and oil-filled latter half engine speed rapidly rise, cause
Vehicle bump or pause and transition in rhythm or melody, as shown in Figure 2.
Automatic gear-box vehicle does not have the workaround for this problem on software at present；On hardware, part passes
The lockup clutch of converter increase butterfly spring of system gearbox, caused punching is flown up to absorb engine speed
Hit.
Caused bump during for above-mentioned fluid torque-converter state change, increase in lockup clutch of converter
The shortcomings that adding butterfly spring, has：
(1) the parts increase of fluid torque-converter, the risk of gearbox failure become big, and the failure of butterfly spring will cause fluid power
Torque-converters is scrapped, or even causes whole gearbox to fail by lubricating oil；
(2) the cost increase of gearbox.
The content of the invention
In order to make up above deficiency, the invention provides one kind can effectively eliminate in gearbox coasting mode, hydraulic moment changeable
Device in open mode to the sliding caused impact that rubs, effectively simplify one kind of the structure of fluid torque-converter prevent fluid torque-converter from
It is opened to the method for producing impact during sliding rub.
The technical scheme is that：A kind of method for preventing fluid torque-converter from generation impact when being opened to sliding rub, its
It is characterised by, for automatic gear-box in coasting mode, fluid torque-converter increases before sliding rub engine torque, fluid torque-converter
Lockup clutch response fluid torque-converter order oil pressure begins setting up oil pressure, and engine speed rises with the increase of engine torque
Height, coordinating the fluid torque-converter order oil pressure so that engine speed increases in the presence of increased engine torque,
When the absolute value of the difference of engine speed and the input shaft rotating speed of gearbox is less than N, lockup clutch completes fluid torque-converter
The sliding control that rubs, fluid torque-converter enter sliding state of rubbing.
As preferable technical scheme, lockup clutch begins to respond to the hydraulic moment changeable after engine increases moment of torsion
Device order oil pressure establishes oil pressure.
As preferable technical scheme, in engine increase moment of torsion, lockup clutch begins to respond to the hydraulic moment changeable simultaneously
Device order oil pressure establishes oil pressure.
As preferable technical scheme, lockup clutch begins to respond to the hydraulic moment changeable before engine increases moment of torsion
Device order oil pressure establishes oil pressure.
As preferable technical scheme, N is can calibration value.
As preferable technical scheme, applied to the gearbox with fluid torque-converter.
As preferable technical scheme, the gearbox with fluid torque-converter includes the AT speed changes with fluid torque-converter
Case, CVT gearboxes, DCT gearboxes and AMT gearboxes.
By adopting the above-described technical solution, a kind of prevent fluid torque-converter from the side for producing impact when being opened to sliding rub
Method, it is characterised in that for automatic gear-box in coasting mode, fluid torque-converter increases engine torque, fluid power change before sliding rub
The lockup clutch response fluid torque-converter order oil pressure of square device begins setting up oil pressure, engine speed with engine torque increasing
Add and raise, coordinate the fluid torque-converter order oil pressure so that engine speed is in the presence of increased engine torque
Increase, when the absolute value of engine speed and the difference of the input shaft rotating speed of gearbox is less than N, lockup clutch completes fluid power
Torque-converters slides the control that rubs, and fluid torque-converter enters sliding state of rubbing；Rise to turn round by engine and steadily raise engine speed, and match somebody with somebody
The control for closing fluid torque-converter order oil pressure eliminates fluid torque-converter state from being opened to the sliding caused impact that rubs.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the principle schematic of the embodiment of the present invention；
Fig. 2 is the schematic diagram of prior art.
Embodiment
As shown in figure 1, a kind of prevent fluid torque-converter from existing from the method for producing impact when being opened to sliding rub, automatic gear-box
Coasting mode, fluid torque-converter increases engine torque before sliding rub, the lockup clutch response fluid power of fluid torque-converter becomes
Square device order oil pressure begins setting up oil pressure, and engine speed raises with the increase of engine torque, coordinates the hydraulic moment changeable
Device order oil pressure so that engine speed increases in the presence of increased engine torque, in engine speed and gearbox
The absolute value of difference of input shaft rotating speed when being less than N, lockup clutch completes fluid torque-converter and slides the control that rubs, fluid torque-converter
Into sliding state of rubbing.N is can calibration value.
Preferably, as shown in figure 1, lockup clutch begins to respond to the liquid simultaneously in T1 time points engine increase moment of torsion
Power torque-converters order oil pressure establishes oil pressure.
Can also, lockup clutch begins to respond to the fluid torque-converter order oil pressure and built after engine increases moment of torsion
Vertical oil pressure.
It is also possible that lockup clutch begins to respond to the fluid torque-converter order oil pressure and built before engine increases moment of torsion
Vertical oil pressure.
Engine speed is steadily raised in order to realize to rise to turn round by engine, and coordinates fluid torque-converter order oil pressure
Control eliminates fluid torque-converter state from being opened to the sliding caused impact that rubs；Lockup clutch begin setting up oil pressure time and
The specific time interval of the time of engine increase moment of torsion between the two, those of ordinary skill in the art can be according to experiment or reasons
Determined by modes such as calculating.
It is above-mentioned to prevent fluid torque-converter to be applied to the change with fluid torque-converter from the method for producing impact when being opened to sliding rub
Fast case.
The gearbox with fluid torque-converter includes the AT gearboxes with fluid torque-converter, CVT gearboxes, DCT speed changes
Case and AMT gearboxes.
Rise to turn round by engine and steadily raise engine speed, and coordinate the control of fluid torque-converter order oil pressure to eliminate
Fluid torque-converter state is from being opened to the sliding caused impact that rubs.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of prevent fluid torque-converter from the method for producing impact when being opened to sliding rub, it is characterised in that automatic gear-box exists
Coasting mode, fluid torque-converter increases engine torque before sliding rub, the lockup clutch response fluid power of fluid torque-converter becomes
Square device order oil pressure begins setting up oil pressure, and engine speed raises with the increase of engine torque, coordinates the hydraulic moment changeable
Device order oil pressure so that engine speed increases in the presence of increased engine torque, in engine speed and gearbox
The absolute value of difference of input shaft rotating speed when being less than N, lockup clutch completes fluid torque-converter and slides the control that rubs, fluid torque-converter
Into sliding state of rubbing.
2. as claimed in claim 1 prevent fluid torque-converter from the method for producing impact when being opened to sliding rub, it is characterised in that
Lockup clutch begins to respond to the fluid torque-converter order oil pressure and establishes oil pressure after engine increases moment of torsion.
3. as claimed in claim 1 prevent fluid torque-converter from the method for producing impact when being opened to sliding rub, it is characterised in that
Begin to respond to the fluid torque-converter order oil pressure in engine increase moment of torsion while lockup clutch and establish oil pressure.
4. as claimed in claim 1 prevent fluid torque-converter from the method for producing impact when being opened to sliding rub, it is characterised in that
Lockup clutch begins to respond to the fluid torque-converter order oil pressure and establishes oil pressure before engine increases moment of torsion.
5. fluid torque-converter is prevented from the method for producing impact when being opened to sliding rub as described in any one of Claims 1-4, its
It is characterised by, N is can calibration value.
6. fluid torque-converter is prevented from the method for producing impact when being opened to sliding rub as described in any one of Claims 1-4, its
It is characterised by, applied to the gearbox with fluid torque-converter.
7. as claimed in claim 6 prevent fluid torque-converter from the method for producing impact when being opened to sliding rub, it is characterised in that
The gearbox with fluid torque-converter includes the AT gearboxes with fluid torque-converter, CVT gearboxes, DCT gearboxes and AMT and become
Fast case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665945.9A CN107448575A (en) | 2017-08-07 | 2017-08-07 | It is a kind of to prevent fluid torque-converter from the method for producing impact when being opened to sliding rub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665945.9A CN107448575A (en) | 2017-08-07 | 2017-08-07 | It is a kind of to prevent fluid torque-converter from the method for producing impact when being opened to sliding rub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107448575A true CN107448575A (en) | 2017-12-08 |
Family
ID=60490222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710665945.9A Pending CN107448575A (en) | 2017-08-07 | 2017-08-07 | It is a kind of to prevent fluid torque-converter from the method for producing impact when being opened to sliding rub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107448575A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591448A (en) * | 2018-07-12 | 2018-09-28 | 盛瑞传动股份有限公司 | Automatic gear-box guard method and automatic gear-box |
| CN112984100A (en) * | 2021-05-19 | 2021-06-18 | 盛瑞传动股份有限公司 | Control method of hydraulic torque converter in gear shifting process |
| CN113503351A (en) * | 2021-07-29 | 2021-10-15 | 湖南容大智能变速器股份有限公司 | Starting control method of hydraulic torque converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040154291A1 (en) * | 2003-02-07 | 2004-08-12 | Nobuyuki Iwao | Fluid coupling |
| CN101813185A (en) * | 2010-03-22 | 2010-08-25 | 盛瑞传动股份有限公司 | Control system for torque converter in hydraulic control system of automatic transmission |
| CN102678908A (en) * | 2012-05-22 | 2012-09-19 | 湖南大学 | Self-adaption matching method for automatic transmission idling breakaway torque |
| CN106536313A (en) * | 2014-09-03 | 2017-03-22 | 日产自动车株式会社 | Lock-up clutch control device for vehicle |
| CN106812939A (en) * | 2015-12-01 | 2017-06-09 | 张学 | A kind of auto-manual transmission hydraulic control system |
-
2017
- 2017-08-07 CN CN201710665945.9A patent/CN107448575A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040154291A1 (en) * | 2003-02-07 | 2004-08-12 | Nobuyuki Iwao | Fluid coupling |
| CN101813185A (en) * | 2010-03-22 | 2010-08-25 | 盛瑞传动股份有限公司 | Control system for torque converter in hydraulic control system of automatic transmission |
| CN102678908A (en) * | 2012-05-22 | 2012-09-19 | 湖南大学 | Self-adaption matching method for automatic transmission idling breakaway torque |
| CN106536313A (en) * | 2014-09-03 | 2017-03-22 | 日产自动车株式会社 | Lock-up clutch control device for vehicle |
| CN106812939A (en) * | 2015-12-01 | 2017-06-09 | 张学 | A kind of auto-manual transmission hydraulic control system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591448A (en) * | 2018-07-12 | 2018-09-28 | 盛瑞传动股份有限公司 | Automatic gear-box guard method and automatic gear-box |
| CN112984100A (en) * | 2021-05-19 | 2021-06-18 | 盛瑞传动股份有限公司 | Control method of hydraulic torque converter in gear shifting process |
| CN113503351A (en) * | 2021-07-29 | 2021-10-15 | 湖南容大智能变速器股份有限公司 | Starting control method of hydraulic torque converter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |
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| RJ01 | Rejection of invention patent application after publication |