CN106122419B - A kind of bull-dozer torque-converters closes unlock control method and device - Google Patents
A kind of bull-dozer torque-converters closes unlock control method and device Download PDFInfo
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- CN106122419B CN106122419B CN201610791985.3A CN201610791985A CN106122419B CN 106122419 B CN106122419 B CN 106122419B CN 201610791985 A CN201610791985 A CN 201610791985A CN 106122419 B CN106122419 B CN 106122419B
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- torque
- converters
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- engine speed
- relation data
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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
- F16H41/24—Details
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
Abstract
The present invention relates to a kind of bull-dozer torque-converters to close unlocking method, includes the following steps：Obtain torque-converters the first corresponding relation data between secondary speed and turbine output torque in the lockout condition；Obtain torque-converters the second corresponding relation data between secondary speed and turbine output torque in the unlocked state；Search the corresponding crossover point secondary speed of crossover point in the first corresponding relation data and the second corresponding relation data；According to the corresponding relation data between preset secondary speed and engine speed, the corresponding threshold engine speed of crossover point secondary speed is calculated；Monitor engine speed torque converter locking, unlock.By the way that the detection to engine speed will be converted into the detection of secondary speed in torque converter locking condition in the present invention, and then judge whether torque-converters needs to be latched by the variation of engine speed.Since available engine Rotating speed measring technology is more mature, the engine speed of acquisition is more accurate, while can also reduce the manufacturing cost of bull-dozer.
Description
Technical field
The present invention relates to bull-dozer technical fields more particularly to a kind of bull-dozer torque-converters to close unlocking method and device.
Background technology
Bulldozer operation operating mode changing load, complete machine needs torque-converters to export torque as big as possible when heavy load, small negative
Complete machine needs torque-converters the output phase to higher rotation speed when load.Therefore, the torque-converters with blocking function is to meet sophisticated functions, is saved
The optimal selection of energy consumption.
Usually judge whether torque-converters needs locking that need to detect torque converter turbine rotating speed, therefore, it is necessary to be equipped with corresponding rotating speed
Sensor.And the limitation of bull-dozer torque-converters existing structure causes difficulty to the installation of sensor.
Therefore, how to propose that a kind of torque-converters closes unlocking method, it is existing that bull-dozer torque-converters in the prior art can be solved
Structure needs installation sensor that could realize that torque-converters closes unlock, is those skilled in the art's technical issues that need to address.
Invention content
It is an object of the invention to propose that a kind of bull-dozer torque-converters closes unlocking method, can solve to bulldoze in the prior art
Machine torque-converters existing structure needs installation sensor that could realize the problem of torque-converters closes unlock.
The present invention also aims to propose that a kind of bull-dozer torque-converters closes solution lock control device, the prior art can be solved
Middle bull-dozer torque-converters existing structure needs installation sensor that could realize the problem of torque-converters closes unlock.
For this purpose, the present invention uses following technical scheme：
A kind of bull-dozer torque-converters is provided and closes unlocking method, is included the following steps：
Obtain torque-converters the first corresponding relation data between secondary speed and turbine output torque in the lockout condition；
Obtain second correspondence number of the torque-converters in the unlocked state between secondary speed and turbine output torque
According to；
Search in first corresponding relation data and second corresponding relation data that crossover point is corresponding to be folded point unit vortex
Wheel speed；
According to the corresponding relation data between the preset secondary speed and engine speed, it is folded described in calculating
The corresponding threshold engine speed of point secondary speed；
Engine speed is monitored, when the engine speed of monitoring is more than the threshold engine speed, is made described
Torque converter locking makes the torque-converters unlock when the engine speed of monitoring is less than the threshold engine speed.
Preferably, the first couple of the acquisition under torque converter locking state between secondary speed and turbine output torque
The step of answering relation data be：The first parameter information of torque-converters in the lockout condition is obtained, according to first parameter information
Calculate the first corresponding relation data between secondary speed and turbine output torque in the lockout condition.
Preferably, obtain the torque-converters in the unlocked state between secondary speed and turbine output torque the
The step of two corresponding relation datas is：The second parameter information of the torque-converters in the unlocked state is obtained, according to described second
Parameter information calculates the first corresponding relation data between secondary speed and turbine output torque in the unlocked state.
The present invention also provides a kind of bull-dozer torque-converters to close solution lock control device, including：
Blocking turbine data acquisition module obtains torque-converters secondary speed and turbine output torque in the lockout condition
Between the first corresponding relation data；
Unlocked state turbine data acquisition module, for obtaining the torque-converters secondary speed and turbine in the unlocked state
The second corresponding relation data between output torque；
Critical secondary speed searching module, for searching first corresponding relation data and the second correspondence number
According to the corresponding crossover point secondary speed of middle crossover point；
Threshold engine speed acquisition module, for according between the preset secondary speed and engine speed
Corresponding relation data, calculate the corresponding threshold engine speed of the crossover point secondary speed；
Status control module, for monitoring engine speed, when the engine speed of monitoring is more than the critical hair
When motivation rotating speed, make the torque converter locking, when the engine speed of monitoring is less than the threshold engine speed, makes
The torque-converters unlock.
By the way that the inspection to engine speed will be converted into the detection of secondary speed in torque converter locking condition in the present invention
It surveys, the critical secondary speed of turbine locking unlock is acquired by secondary speed and turbine torque correspondence, passes through secondary speed
Relationship between engine determines threshold engine speed, and then judges whether torque-converters needs by the variation of engine speed
It is latched.Since available engine Rotating speed measring technology is more mature, the engine speed of acquisition is more accurate, while can also drop
The manufacturing cost of low bull-dozer.
Description of the drawings
Fig. 1 is the flow diagram that bull-dozer torque-converters provided by the invention closes unlocking method；
Fig. 2 is engine, torque-converters co-operation output characteristic curve schematic diagram.
In figure：
1, torque converter curve；2, torque-converters speed ratio curve；3, engine speed graph；4, it is latched torque curve；5,
Unlock torque curve.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings and by specific
Embodiment is come the technical solution that further illustrates the present invention.
As shown in Figure 1, providing a kind of bull-dozer torque-converters in the present embodiment closes unlocking method, include the following steps：
Obtain torque-converters the first corresponding relation data between secondary speed and turbine output torque in the lockout condition；
It is first to put forward condition with torque converter locking state, obtains the turbine output torque corresponding to different secondary speeds, into
And obtain the relation curve of turbine output torque and turbine trip speed under torque converter locking state.
Obtain second correspondence number of the torque-converters in the unlocked state between secondary speed and turbine output torque
According to；
It is first to put forward condition with torque-converters unlocked state, obtains the turbine output torque corresponding to different secondary speeds, into
And obtain the relation curve of turbine output torque and secondary speed under torque-converters unlocked state.
Search in first corresponding relation data and second corresponding relation data that crossover point is corresponding to be folded point unit vortex
Wheel speed；
Search the critical value of turbine output rotating speed under different conditions；
According to the corresponding relation data between the preset secondary speed and engine speed, it is folded described in calculating
The corresponding threshold engine speed of point secondary speed；
Wherein, the correspondence curve between the preset secondary speed and engine speed is and starts
Machine-torque-converters match curve.
Engine speed is monitored, when the engine speed of monitoring is more than the threshold engine speed, is made described
Torque converter locking makes the torque-converters unlock when the engine speed of monitoring is less than the threshold engine speed.
First correspondence number of the acquisition under torque converter locking state between secondary speed and turbine output torque
According to the step of be：The first parameter information of torque-converters in the lockout condition is obtained, is being closed according to first parameter information calculating
The first corresponding relation data under lock status between secondary speed and turbine output torque.
First parameter information refer to obtain blocking under each performance parameter of turbine, as torque-converters working efficiency,
Torque ratio etc..
The second corresponding pass that the torque-converters solution is obtained under lock status between secondary speed and turbine output torque
Coefficient according to the step of be：The second parameter information of the torque-converters in the unlocked state is obtained, according to second parameter information
Calculate the first corresponding relation data between secondary speed and turbine output torque in the unlocked state.
Second parameter information refer to obtain unlocked state under each performance parameter of turbine, as torque-converters working efficiency,
Torque ratio etc..
It determines whether torque-converters is latched, unlocks by engine speed in the present embodiment, torque-converters installation can be saved and passed
The step for sensor, and then production cost can be reduced.
As shown in Fig. 2, this method first obtains torque of the torque-converters in the case where closing unlocked state and the characteristic of torque-converters rotating speed is bent
Then line searches the corresponding secondary speeds of crossover point A for closing unlocked state torque characteristic curve, then corresponding according to interface point
Secondary speed calculates threshold engine speed B, then judges engine speed and critical engine according to threshold engine speed B
The size of rotating speed B, to control torque-converters state.
Embodiment 2
A kind of torque-converters behavior control device is present embodiments provided, is controlled and is become using method as described in example 1 above
Square device state comprising：
Blocking turbine data acquisition module obtains torque-converters secondary speed and turbine output torque in the lockout condition
Between the first corresponding relation data；
Unlocked state turbine data acquisition module, for obtaining the torque-converters secondary speed and turbine in the unlocked state
The second corresponding relation data between output torque；
Critical secondary speed searching module, for searching first corresponding relation data and the second correspondence number
According to the corresponding crossover point secondary speed of middle crossover point；
Threshold engine speed acquisition module, for according between the preset secondary speed and engine speed
Corresponding relation data, calculate the corresponding threshold engine speed of the crossover point secondary speed；
Status control module, for monitoring engine speed, when the engine speed of monitoring is more than the critical hair
When motivation rotating speed, make the torque converter locking, when the engine speed of monitoring is less than the threshold engine speed, makes
The torque-converters unlock.
A kind of torque-converters behavior control device is present embodiments provided, which can judge bending moment according to engine speed
Device locking, unlocked state further make to can be achieved with the control that torque-converters closes unlocked state it is not necessary that sensor is arranged on turbine.
Note that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The industry
Technical staff it should be appreciated that the present invention is not limited to the embodiments described above, described in the above embodiment and specification
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also have various change and
It improves, these changes and improvements all fall within the protetion scope of the claimed invention, and claimed range of the invention is by appended
Claims and its equivalent thereof.
Claims (2)
1. a kind of bull-dozer torque-converters closes unlocking method, which is characterized in that include the following steps：
Obtain torque-converters the first corresponding relation data between secondary speed and turbine output torque in the lockout condition；
Obtain second corresponding relation data of the torque-converters in the unlocked state between secondary speed and turbine output torque；
The corresponding cross over point turbine of cross over point in first corresponding relation data and second corresponding relation data is searched to turn
Speed；
According to the corresponding relation data between the preset secondary speed and engine speed, the overlapping point unit vortex is calculated
The corresponding threshold engine speed of wheel speed；
Engine speed is monitored, when the engine speed of monitoring is more than the threshold engine speed, makes the bending moment
Device is latched, and when the engine speed of monitoring is less than the threshold engine speed, the torque-converters is made to unlock；
First corresponding relation data of the acquisition under torque converter locking state between secondary speed and turbine output torque
Step is：The first parameter information of torque-converters in the lockout condition is obtained, is calculated in latch like according to first parameter information
The first corresponding relation data under state between secondary speed and turbine output torque；
It is described to obtain the torque-converters the second correspondence number between secondary speed and turbine output torque in the unlocked state
According to the step of be：The second parameter information of the torque-converters in the unlocked state is obtained, is calculated according to second parameter information
The first corresponding relation data between secondary speed and turbine output torque in the unlocked state；
First parameter information refers to obtaining each performance parameter of turbine under blocking；
Second parameter information refers to obtaining each performance parameter of turbine under unlocked state.
2. a kind of bull-dozer torque-converters closes solution lock control device, which is characterized in that including：
Blocking turbine data acquisition module, acquisition torque-converters is in the lockout condition between secondary speed and turbine output torque
The first corresponding relation data；
Unlocked state turbine data acquisition module, for obtaining the torque-converters, secondary speed is exported with turbine in the unlocked state
The second corresponding relation data between torque；
Critical secondary speed searching module, for searching in first corresponding relation data and second corresponding relation data
The corresponding cross over point secondary speed of cross over point；
Threshold engine speed acquisition module, for according to pair between the preset secondary speed and engine speed
Relation data is answered, the corresponding threshold engine speed of the cross over point secondary speed is calculated；
Status control module, for monitoring engine speed, when the engine speed of monitoring is more than the critical engine
When rotating speed, make the torque converter locking, when the engine speed of monitoring is less than the threshold engine speed, makes described
Torque-converters unlocks.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610791985.3A CN106122419B (en) | 2016-08-31 | 2016-08-31 | A kind of bull-dozer torque-converters closes unlock control method and device |
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|---|---|---|---|
| CN201610791985.3A CN106122419B (en) | 2016-08-31 | 2016-08-31 | A kind of bull-dozer torque-converters closes unlock control method and device |
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| CN106122419A CN106122419A (en) | 2016-11-16 |
| CN106122419B true CN106122419B (en) | 2018-11-02 |
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| US10745886B2 (en) | 2018-06-08 | 2020-08-18 | Deere & Company | Torque converter control based on work vehicle parameters |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518794A (en) * | 2011-12-30 | 2012-06-27 | 山推工程机械股份有限公司 | Method and device for shift control of engineering mechanical trucks |
| CN102644729A (en) * | 2012-04-28 | 2012-08-22 | 山推工程机械股份有限公司 | Locking and unlocking method and locking and unlocking system of hydraulic torque converter and engineering machine for traction work |
| CN102661387A (en) * | 2012-04-28 | 2012-09-12 | 山推工程机械股份有限公司 | Locking and unlocking method and system of hydraulic torque converter and construction machine used for hauling |
| CN104989802A (en) * | 2015-07-15 | 2015-10-21 | 长安大学 | Locking and unlocking method and locking and unlocking system for locking type hydraulic torque converter of bulldozer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60136662A (en) * | 1983-12-24 | 1985-07-20 | Nissan Motor Co Ltd | Output torque detector for torque converter |
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2016
- 2016-08-31 CN CN201610791985.3A patent/CN106122419B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518794A (en) * | 2011-12-30 | 2012-06-27 | 山推工程机械股份有限公司 | Method and device for shift control of engineering mechanical trucks |
| CN102644729A (en) * | 2012-04-28 | 2012-08-22 | 山推工程机械股份有限公司 | Locking and unlocking method and locking and unlocking system of hydraulic torque converter and engineering machine for traction work |
| CN102661387A (en) * | 2012-04-28 | 2012-09-12 | 山推工程机械股份有限公司 | Locking and unlocking method and system of hydraulic torque converter and construction machine used for hauling |
| CN104989802A (en) * | 2015-07-15 | 2015-10-21 | 长安大学 | Locking and unlocking method and locking and unlocking system for locking type hydraulic torque converter of bulldozer |
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