CN107255150A - It is a kind of to prevent fluid torque-converter from the method for producing impact when being opened to locking - Google Patents
It is a kind of to prevent fluid torque-converter from the method for producing impact when being opened to locking Download PDFInfo
- Publication number
- CN107255150A CN107255150A CN201710665953.3A CN201710665953A CN107255150A CN 107255150 A CN107255150 A CN 107255150A CN 201710665953 A CN201710665953 A CN 201710665953A CN 107255150 A CN107255150 A CN 107255150A
- Authority
- CN
- China
- Prior art keywords
- converter
- locking
- fluid torque
- oil pressure
- engine
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Gearings (AREA)
- Control Of Transmission Device (AREA)
Abstract
Prevent fluid torque-converter from the method for producing impact when being opened to locking the invention discloses a kind of, automatic gear-box is in coasting mode, fluid torque-converter increases engine torque before locking, the lockup clutch response locking order oil pressure of fluid torque-converter begins setting up oil pressure, engine speed is raised with the increase of engine torque, coordinate the locking order oil pressure of fluid torque-converter, 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 completes converter lockout, fluid torque-converter enters blocking；Rise to turn round by engine and steadily raise engine speed, and coordinate the control of the locking order oil pressure of fluid torque-converter to eliminate fluid torque-converter state from the impact produced when being opened to locking.
Description
Technical field
Prevent fluid torque-converter from the method for producing impact when being opened to locking 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 it is accomplished by hydraulic moment changeable
Device reacts on engine by locking, counter to hold in the palm engine rotation, make engine speed remain at oil-break recover rotating speed it
On, so as to ensure that the oil-break of maximum is interval.
Accelerator releasing coasting mode, in fluid torque-converter by being opened in latching process, because engine reacts on fluid power
Torque-converters, and there is delay in the actual oil pressure of converter lockout, cause oil-filled in fluid torque-converter relative to order oil pressure
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.
Current automatic gear-box vehicle does not have the workaround for this problem on software；On hardware, part is passed
Unite the lockup clutch of converter increase butterfly spring of gearbox, to absorb rushing of being produced when engine speed is flown up
Hit.
Produced bump during for above-mentioned fluid torque-converter state change, increases in lockup clutch of converter
Plus the shortcoming of butterfly spring has：
(1) the parts increase of fluid torque-converter, the risk of gearbox failure becomes 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
It is not enough in order to make up the above, can effectively it be eliminated in gearbox coasting mode, hydraulic moment changeable the invention provides one kind
Device in open mode to the impact produced during locking, 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 locking.
The technical scheme is that：A kind of method for preventing fluid torque-converter from generation impact when being opened to locking, from
Dynamic gearbox is in coasting mode, and fluid torque-converter increases the lockup clutch of engine torque, fluid torque-converter before locking
Response locking order oil pressure begins setting up oil pressure, and engine speed is raised with the increase of engine torque, coordinates hydraulic moment changeable
The locking order oil pressure of device so that engine speed increases in the presence of increased engine torque, in engine speed and
When the absolute value of the difference of the input shaft rotating speed of gearbox is less than N, lockup clutch completes converter lockout, hydraulic moment changeable
Device enters blocking.
As preferred technical scheme, lockup clutch response locking order oil pressure starts after engine increase moment of torsion
Set up oil pressure.
As preferred technical scheme, start in the engine increase moment of torsion locking order oil pressure of lockup clutch response simultaneously
Set up oil pressure.
As preferred technical scheme, locking clutch response locking order oil pressure device starts before engine increase moment of torsion
Set up oil pressure.
As preferred technical scheme, N is can calibration value.
As preferred technical scheme, applied to the gearbox with fluid torque-converter.
As preferred 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 locking
Method, automatic gear-box in coasting mode, fluid torque-converter increase before locking engine torque, fluid torque-converter locking from
Clutch response locking order oil pressure begins setting up oil pressure, and engine speed is raised with the increase of engine torque, coordinates fluid power
The locking order oil pressure of torque-converters so that engine speed increases in the presence of increased engine torque, turns in engine
When the absolute value of the difference of speed and the input shaft rotating speed of gearbox is less than N, lockup clutch completes converter lockout, fluid power
Torque-converters enters blocking；Rise to turn round by engine and steadily raise engine speed, and coordinate the locking of fluid torque-converter
The control of order oil pressure eliminates fluid torque-converter state from the impact produced when being opened to locking.
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 accompanying drawing used required 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 the method for producing impact when being opened to locking, automatic gear-box exists
Coasting mode, fluid torque-converter increases the lockup clutch response locking life of engine torque, fluid torque-converter before locking
Make oil pressure begin setting up oil pressure, engine speed is raised with the increase of engine torque, coordinate the locking life of fluid torque-converter
Oil pressure is made so that engine speed increases in the presence of increased engine torque, in the defeated of engine speed and gearbox
When the absolute value for entering the difference of rotating speed is less than N, lockup clutch completes converter lockout, and fluid torque-converter enters locking
State.N is can calibration value.
It is preferred that, as shown in figure 1, increasing moment of torsion in engine at T1 time points, while lockup clutch response locking life
Oil pressure is made to begin setting up oil pressure.
Can also, lockup clutch response locking order oil pressure begins setting up oil pressure after engine increase moment of torsion.
It is also possible that locking clutch response locking order oil pressure device begins setting up oil pressure before engine increase moment of torsion.
Engine speed is steadily raised in order to realize to rise to turn round by engine, and coordinates the locking order of fluid torque-converter
The control of oil pressure eliminates fluid torque-converter state from the impact produced when being opened to locking；Lockup clutch begins setting up oil pressure
The specific time interval of time and the time of engine increase moment of torsion between the two, those of ordinary skill in the art can be according to examination
Test or the mode such as theoretical calculation is determined.
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 locking
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 the locking order oil pressure of fluid torque-converter
System eliminates fluid torque-converter state from the impact produced when being opened to locking.
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 locking, it is characterised in that：Automatic gear-box exists
Coasting mode, fluid torque-converter increases the lockup clutch response locking life of engine torque, fluid torque-converter before locking
Make oil pressure begin setting up oil pressure, engine speed is raised with the increase of engine torque, coordinate the locking life of fluid torque-converter
Oil pressure is made so that engine speed increases in the presence of increased engine torque, in the defeated of engine speed and gearbox
When the absolute value for entering the difference of rotating speed is less than N, lockup clutch completes converter lockout, and fluid torque-converter enters locking
State.
2. as claimed in claim 1 prevent fluid torque-converter from the method for producing impact when being opened to locking, it is characterised in that
Lockup clutch response locking order oil pressure begins setting up oil pressure after engine increase moment of torsion.
3. as claimed in claim 1 prevent fluid torque-converter from the method for producing impact when being opened to locking, it is characterised in that
Oil pressure is begun setting up in the engine increase moment of torsion locking order oil pressure of lockup clutch response simultaneously.
4. as claimed in claim 1 prevent fluid torque-converter from the method for producing impact when being opened to locking, it is characterised in that
Locking clutch response locking order oil pressure device begins setting up oil pressure before engine increase moment of torsion.
5. as described in any one of Claims 1-4 prevent fluid torque-converter from when being opened to locking produce impact method, its
It is characterised by, N is can calibration value.
6. as described in any one of Claims 1-4 prevent fluid torque-converter from when being opened to locking produce impact method, 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 locking, 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 |
|---|---|---|---|
| CN201710665953.3A CN107255150B (en) | 2017-08-07 | 2017-08-07 | Method for preventing impact generated when hydraulic torque converter is opened to locked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665953.3A CN107255150B (en) | 2017-08-07 | 2017-08-07 | Method for preventing impact generated when hydraulic torque converter is opened to locked |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107255150A true CN107255150A (en) | 2017-10-17 |
| CN107255150B CN107255150B (en) | 2020-09-08 |
Family
ID=60025545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710665953.3A Active CN107255150B (en) | 2017-08-07 | 2017-08-07 | Method for preventing impact generated when hydraulic torque converter is opened to locked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107255150B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965557A (en) * | 2017-12-29 | 2018-04-27 | 徐工集团工程机械有限公司 | Fluid torque-converter and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1521430A (en) * | 2003-02-13 | 2004-08-18 | �ղ��Զ�����ʽ���� | Lockup control of torque converter |
| CN1629520A (en) * | 2003-12-18 | 2005-06-22 | 日产自动车株式会社 | Lockup control apparatus and method for vehicular torque converter |
| CN101842617A (en) * | 2007-10-31 | 2010-09-22 | 丰田自动车株式会社 | Control device and control method for lockup clutch and engine torque in a vehicle |
| WO2016006064A1 (en) * | 2014-07-09 | 2016-01-14 | 日産自動車株式会社 | Lock-up-clutch control device for vehicle |
| CN106536313A (en) * | 2014-09-03 | 2017-03-22 | 日产自动车株式会社 | Lock-up clutch control device for vehicle |
-
2017
- 2017-08-07 CN CN201710665953.3A patent/CN107255150B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1521430A (en) * | 2003-02-13 | 2004-08-18 | �ղ��Զ�����ʽ���� | Lockup control of torque converter |
| CN1629520A (en) * | 2003-12-18 | 2005-06-22 | 日产自动车株式会社 | Lockup control apparatus and method for vehicular torque converter |
| CN101842617A (en) * | 2007-10-31 | 2010-09-22 | 丰田自动车株式会社 | Control device and control method for lockup clutch and engine torque in a vehicle |
| WO2016006064A1 (en) * | 2014-07-09 | 2016-01-14 | 日産自動車株式会社 | Lock-up-clutch control device for vehicle |
| CN106536313A (en) * | 2014-09-03 | 2017-03-22 | 日产自动车株式会社 | Lock-up clutch control device for vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965557A (en) * | 2017-12-29 | 2018-04-27 | 徐工集团工程机械有限公司 | Fluid torque-converter and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107255150B (en) | 2020-09-08 |
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