CN105782286B - A kind of oil-filled self-adaptation control method and system for wet clutch - Google Patents
A kind of oil-filled self-adaptation control method and system for wet clutch Download PDFInfo
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- CN105782286B CN105782286B CN201610225666.6A CN201610225666A CN105782286B CN 105782286 B CN105782286 B CN 105782286B CN 201610225666 A CN201610225666 A CN 201610225666A CN 105782286 B CN105782286 B CN 105782286B
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
- F16D2500/70402—Actuator parameters
- F16D2500/70406—Pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a kind of oil-filled self-adaptation control method for wet clutch and system, this method to include：Obtained in wriggling operating mode and work as the oil-filled state of front clutch；When the oil-filled state of front clutch is oil-filled state of a control, front clutch goal pressure is worked as in acquisition；In default adjustment duration, clutch half hitch chalaza will be adjusted to when front clutch goal pressure；After adjustment terminates, in default integration control duration, according to the relation between the corrected parameter of the difference and oil-filled offset of half hitch chalaza and clutch actual pressure, the corrected parameter of oil-filled offset is obtained；Oil-filled offset is modified according to the corrected parameter of oil-filled offset, obtains revised oil-filled offset；According to revised oil-filled offset adjustment clutch goal pressure.Clutch target pressure value can be adjusted to half hitch chalaza by the present invention within the defined time, and be avoided that vehicular impact even engine is suppressed the problems such as flame-out.
Description
Technical field
The present invention relates to clutch control field, more particularly to a kind of oil-filled Self Adaptive Control side for wet clutch
Method and system.
Background technology
Wet clutch is widely used in automatic gear-box, and its operation principle is as described below：Combined in clutch
Cheng Zhong, pressure oil enter clutch oil cylinder side through oil duct, promote piston to move pressing friction piece to opposite side, make clutch master
Dynamic/driven side, which is realized, to be synchronized with the movement.In clutch Oil feeding process, pressure relief vent is blocked thing and sealed, therefore no pressure oil leakage；
And in the stage of draining the oil, obstacle no longer blocks pressure relief vent under the action of the centrifugal force, opens pressure relief vent so that and clutch active/from
Realize separation in dynamic side.
Wriggling operating mode refers to driver's releasing of brake pedal and not in the case of accelerator pedal, and vehicle can start
Machine is under idle state, the operating mode for being advanced slowly or retreating, as shown in Figure 1.Half hitch chalaza (kisspoint points) refers to
Clutch can just transmit the pressure of moment of torsion.In actual applications, it is necessary to control the pressure of clutch to be rapidly achieved from 0kpa
The kisspoint point pressures of clutch, otherwise can cause vehicle to be short of power；In addition, kisspoint points can be with gear box oil
The change of gentle clutch state changes, if suitable kisspoint points can not be selected, can cause vehicle in wriggling work
During condition downward driving, vehicle has impact to feel and/or the serious phenomenon of slipping of clutch, in addition can occur engine suppressed it is flame-out
Phenomenon.
The content of the invention
The invention provides a kind of oil-filled self-adaptation control method and system for wet clutch, solves prior art
In can not ensure that the pressure of clutch is rapidly achieved half hitch chalaza, and half hitch chalaza can change and cause the Stress control of clutch accurate
The problem of exactness is inadequate.
The invention provides a kind of oil-filled self-adaptation control method for wet clutch, including：
Obtained in wriggling operating mode and work as the oil-filled state of front clutch；
When the oil-filled state of front clutch is oil-filled state of a control, front clutch goal pressure is worked as in acquisition；
In default adjustment duration, clutch half hitch chalaza will be adjusted to when front clutch goal pressure；
After adjustment terminates, in default integration control duration, according to half hitch chalaza and the difference of clutch actual pressure
Relation between the corrected parameter of oil-filled offset, obtain the corrected parameter of oil-filled offset；
Oil-filled offset is modified according to the corrected parameter of oil-filled offset, obtains revised oil-filled offset；
According to revised oil-filled offset adjustment clutch goal pressure.
Preferably, it is described in default adjustment duration, clutch quasi integration will be adjusted to when front clutch goal pressure
Point includes：
Obtain the difference with clutch half hitch chalaza when front clutch goal pressure；
According to default adjustment duration and the difference when front clutch goal pressure and clutch half hitch chalaza, obtain from
Pressure of the clutch in adjustment duration adjusts speed；
Clutch half hitch chalaza will be adjusted to when front clutch goal pressure by adjusting speed according to the pressure.
Preferably, it is described in default integration control duration, according to half hitch chalaza and the difference of clutch actual pressure
Relation between the corrected parameter of oil-filled offset, obtaining the corrected parameter of oil-filled offset includes：
Calculate in the adjustment duration and the integration control duration, the product of the difference of half hitch chalaza and clutch actual pressure
Score value；
The higher limit and lower limit of half hitch chalaza and the difference of the integrated value are determined, the higher limit is upper limit value coefficient
With the product of half hitch chalaza；The lower limit is lower limit value coefficient and the product of half hitch chalaza；
If the difference of half hitch chalaza and the integrated value is more than higher limit or less than lower limit, according to the integration
Relation between value and the corrected parameter of oil-filled offset, obtain the corrected parameter or the oil-filled benefit of lower limit of the oil-filled offset of the upper limit
Repay the corrected parameter of value.
Preferably, the relation according between the corrected parameter of the integrated value and oil-filled offset, obtain the upper limit and fill
The corrected parameter of the oil-filled offset of corrected parameter or lower limit of oily offset includes：
By the corrected parameter table of comparisons or integrated value and the oil-filled compensation of lower limit of looking into integrated value and the oil-filled offset of the upper limit
The corrected parameter table of comparisons of value, obtain the corrected parameter or the oil-filled benefit of lower limit of the oil-filled offset of the upper limit corresponding to the integrated value
Repay the corrected parameter of value.
Preferably, when difference≤higher limit of lower limit≤half hitch chalaza and the integrated value, the oil-filled benefit of the upper limit
The corrected parameter of the corrected parameter and the oil-filled offset of the lower limit of repaying value is 0.
Preferably, the corrected parameter according to oil-filled offset is modified to oil-filled offset, is obtained revised
Oil-filled offset includes：
Oil-filled offset is subtracted to the corrected parameter of the oil-filled offset of the upper limit, and joined plus the amendment of the oil-filled offset of lower limit
Number, as revised oil-filled offset.
Correspondingly, present invention also offers a kind of oil-filled adaptive control system for wet clutch, including：
Clutch state acquisition module, work as the oil-filled state of front clutch for being obtained in wriggling operating mode；
Goal pressure acquisition module, for when the oil-filled state of front clutch is oil-filled state of a control, obtaining current clutch
Device goal pressure；
Pressure adjusting module, in default adjustment duration, clutch will to be adjusted to when front clutch goal pressure
Half hitch chalaza；
Corrected parameter acquisition module, for after adjusting and terminating, in default integration control duration, according to half hitch chalaza and
Relation between the corrected parameter of the difference of clutch actual pressure and oil-filled offset, obtain the amendment ginseng of oil-filled offset
Number；
Offset correcting module, oil-filled offset is modified for the corrected parameter according to oil-filled offset, obtained
Revised oil-filled offset；
Goal pressure adjusting module, for adjusting clutch goal pressure according to revised oil-filled offset.
Preferably, the pressure adjusting module includes：
Difference acquiring unit, for obtaining the difference when front clutch goal pressure with clutch half hitch chalaza；
Speed acquiring unit is adjusted, for according to default adjustment duration and when front clutch goal pressure and clutch
The difference of half hitch chalaza, obtain pressure of the clutch in adjustment duration and adjust speed；
Pressure adjustment unit, clutch will be adjusted to when front clutch goal pressure for adjusting speed according to the pressure
Half hitch chalaza.
Preferably, the corrected parameter acquisition module includes：
Integral unit, for calculating in the adjustment duration and the integration control duration, half hitch chalaza is real with clutch
The integrated value of the difference of border pressure；And
Bound determining unit, for determining the higher limit and lower limit of half hitch chalaza and the difference of the integrated value, institute
Higher limit is stated as upper limit value coefficient and the product of half hitch chalaza；The lower limit is lower limit value coefficient and the product of half hitch chalaza；
Corrected parameter acquiring unit, if the difference for half hitch chalaza and the integrated value is more than higher limit or is less than
Lower limit, then according to the relation between the corrected parameter of the integrated value and oil-filled offset, obtain the oil-filled offset of the upper limit
The corrected parameter of corrected parameter or the oil-filled offset of lower limit.
Preferably, the corrected parameter acquiring unit is specifically used for the amendment by looking into integrated value and the oil-filled offset of the upper limit
Parameter lookup table or integrated value and the corrected parameter table of comparisons of the oil-filled offset of lower limit, obtain the upper limit corresponding to the integrated value
The corrected parameter of the oil-filled offset of corrected parameter or lower limit of oil-filled offset.
The present invention provides a kind of oil-filled self-adaptation control method and system for wet clutch, passes through wet clutch
Whether it is wriggling operating mode, and whether clutch is in oil-filled state of a control, to judge whether to oil-filled Self Adaptive Control, if
Then to obtain and work as front clutch goal pressure, and according to default adjustment duration, will when front clutch goal pressure be adjusted to from
Clutch half hitch chalaza, can so be adjusted by setting the length legislations of duration how long it is interior complete above-mentioned adjustment process,
Prevent because clutch goal pressure does not reach kisspoint points, the phenomenon for causing vehicle to be short of power at the appointed time；Connect
, in default integration control duration, according to the difference of kisspoint points and clutch actual pressure and oil-filled offset
Relation between corrected parameter, the corrected parameter of oil-filled offset is obtained, the process can be compensated due to oil temperature change, clutch
The corrected parameter for the corresponding oil-filled offset of change that the reasons such as state change cause kisspoint points to occur, then according to oil-filled
The corrected parameter of offset is modified to oil-filled offset, revised oil-filled offset is obtained, finally according to revised
Oil-filled offset adjusts clutch goal pressure, can effectively solve to cause actual clutch because kisspoint points change
The pressure of device is improper, causes vehicular impact even engine to be suppressed the problem of flame-out.
Further, the present invention obtains oil-filled compensation in default integration control duration according to the result of integration control
The corrected parameter of value, so, the corrected parameter of oil-filled offset is obtained within the time of setting, can in follow-up Oil feeding process
To be directly adjusted using corrected parameter to oil-filled offset, so neither influence that this is oil-filled, while have adjusted down
Secondary oil-filled oil-filled offset, it ensure that control system adjusts to the dynamic of precharge pressure.
Further, the present invention obtains the integration of the difference of kisspoint points and clutch goal pressure by integration control
Value, and kisspoint points and the higher limit and lower limit of the difference of the integrated value are set, when kisspoint points and the product
When the difference of score value exceedes upper lower limit value, then the corrected parameter of oil-filled offset is obtained, be so easily achieved and obtain oil-filled compensation
The corrected parameter of value, and by setting the upper lower limit value of difference, given on the premise of Adjusting accuracy is ensured certain
Redundancy window, algorithm are practical.
Further, the present invention can be by looking into the corrected parameter table of comparisons or product of integrated value and the oil-filled offset of the upper limit
The corrected parameter table of comparisons of score value and the oil-filled offset of lower limit, obtains the amendment of the oil-filled offset of the upper limit corresponding to the integrated value
The corrected parameter of parameter or the oil-filled offset of lower limit, the corrected parameter table of comparisons, integration of the integrated value with the oil-filled offset of the upper limit
Value and the corrected parameter table of comparisons of the oil-filled offset of lower limit can be obtained in advance by means such as experiments, in actual applications, can
Quickly to obtain the corrected parameter of oil-filled offset corresponding to integrated value, the simple and quick oil-filled compensation of acquisition of energy by tabling look-up
The corrected parameter of value, it is practical.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only one described in the present invention
A little embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is Automotives Equipped Automatic Transmissions wriggling driving cycle schematic diagram in the prior art；
Fig. 2 is a kind of flow chart for the oil-filled self-adaptation control method for being used for wet clutch according to the embodiment of the present invention；
Fig. 3 is a kind of flow chart for the corrected parameter that oil-filled offset is obtained according to the embodiment of the present invention；
Fig. 4 is the schematic diagram according to various pressure in the oil-filled adaptive control process of the embodiment of the present invention；
Fig. 5 is a kind of structural representation for the oil-filled adaptive control system for being used for wet clutch according to the embodiment of the present invention
Figure.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar parameter or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
A kind of oil-filled self-adaptation control method and system for wet clutch provided by the invention, can allow clutch
Actual pressure reaches the kisspoint point pressures of clutch from 0kpa at the appointed time, in addition, adding oil-filled self-adaptive controlled
System processed, can solve because the change of clutch state or oil temperature causes kisspoint points to change so that the actual pressure of clutch
Power is improper, cause vehicle be short of power or vehicular impact even engine suppressed the problem of flame-out.
In order to be better understood from technical scheme and technique effect, below with reference to schematic flow sheet to specific
Embodiment is described in detail.
As shown in Fig. 2 the inventive method comprises the following steps：
Step S01, obtained in wriggling operating mode and work as the oil-filled state of front clutch.
In the present embodiment, can be true according to parameters such as current vehicle speed, brake pressure, accelerator open degree, current shifts
Recognize whether current vehicle driving cycle is wriggling operating mode.In a specific embodiment, if when front gear box gear is located at D gears
Or R gears, current vehicle speed≤5km/h, current throttle aperture are 0 and current brake pressure value is more than 5bar, then current vehicle travels
Operating mode is wriggling operating mode.Other technologies can certainly be used whether to judge current vehicle driving cycle for wriggling operating mode, herein
Do not limit.Then, obtain and work as the oil-filled state of front clutch, for example, the confirmation such as signal obtained by sensor or system is worked as
Whether front clutch is oil-filled in progress.
Step S02, when the oil-filled state of front clutch is oil-filled state of a control, front clutch goal pressure is worked as in acquisition.
Step S03, in default adjustment duration, clutch kisspoint will be adjusted to when front clutch goal pressure
Point.
In the present embodiment, setting adjusts duration according to the actual requirements, such as the adjustment duration may range from 250-
450ms, it is preferable that a length of 300ms during the adjustment, clutch will be adjusted to when front clutch goal pressure in adjustment duration
Kisspoint points, specifically, can be according to when the difference and tune of front clutch goal pressure and clutch kisspoint points
Whole duration determines adjustment speed.Adjustment speed can be at the uniform velocity or speed change, such as setting one at the uniform velocity adjustment speed
Rate, within a specified time reach adjustment purpose；Certainly, for some specific demands, can also by the rate value and cosine function,
Piecewise function etc. is multiplied, and obtains the adjustment speed of speed change.
Step S04, it is actual according to kisspoint points and clutch in default integration control duration after adjustment terminates
Relation between the corrected parameter of the difference of pressure and oil-filled offset, obtain the corrected parameter of oil-filled offset.
In the present embodiment, it is contemplated that kisspoint points may be due to producing abrasion or oil temperature during clutch use
The reasons such as change, cause kisspoint points to change, and can so influence the degree of accuracy of oil-filled control, the present embodiment according to
Relation between the corrected parameter of the difference and oil-filled offset of kisspoint points and clutch actual pressure, in default product
The corrected parameter of oil-filled offset is obtained in sub-control duration, to be adjusted to oil-filled offset, improves the standard of oil-filled control
Exactness, lift driving comfort and extend clutch service life.
Step S05, oil-filled offset is modified according to the corrected parameter of oil-filled offset, obtained revised oil-filled
Offset.
Step S06, clutch goal pressure is adjusted according to revised oil-filled offset.
In embodiments of the present invention, duration is adjusted by setting so that clutch goal pressure reaches at the appointed time
The kisspoint point pressures of clutch, avoiding adjustment, speed is too low causes vehicle to be short of power；In addition, add it is oil-filled from
Adaption Control System, can solve because the change of clutch state or oil temperature causes kisspoint points to change so that clutch
Actual pressure is improper, cause vehicle be short of power or vehicular impact even engine suppressed the problem of flame-out, can effectively be lifted
Driving comfort.
In another embodiment, it is described it is default adjustment duration in, will when front clutch goal pressure be adjusted to from
Clutch kisspoint points can specifically include following steps：
Step S21, obtain the difference with clutch half hitch chalaza when front clutch goal pressure.
Step S22, according to default adjustment duration and when front clutch goal pressure and the difference of clutch half hitch chalaza
Value, obtain pressure of the clutch in adjustment duration and adjust speed.
In the present embodiment, the expression formula of pressure adjustment speed can be as shown in formula (1)：
Wherein, v is that pressure adjusts speed, and p1 is when front clutch target pressure value, and t2t1 is adjustment duration,
Kisspoint is that quasi integration presses force value.
Step S23, clutch half hitch chalaza will be adjusted to when front clutch goal pressure by adjusting speed according to the pressure.
So, clutch will can be adjusted to according to given pace when front clutch goal pressure in desired duration
Kisspoint points.
In another embodiment, a kind of flow chart for obtaining the corrected parameter of oil-filled offset is as shown in Figure 3.Specifically may be used
To comprise the following steps：
Step S31, calculate in the adjustment duration and the integration control duration, half hitch chalaza and clutch actual pressure
Difference integrated value.
In the present embodiment, the adjustment duration is similarly default duration according to the actual requirements, and the integrated value can be with
Obtained by integration control, wherein, the input value of integration control is：Output valve isWherein, t3t1 adjusts duration and the integration control duration sum to be described, such as
It is the schematic diagram of various pressure in oil-filled adaptive control process shown in Fig. 4, wherein, integrated value size is equal to shadow region face
The size of product value.
Step S32, determines the higher limit and lower limit of half hitch chalaza and the difference of the integrated value, and the higher limit is upper
Limit value coefficient and the product of half hitch chalaza；The lower limit is lower limit value coefficient and the product of half hitch chalaza.
In the present embodiment, the higher limit=upper limit value coefficient × kisspoint points, the lower limit=lower limit system
Number × kisspoint points.Wherein, upper limit value coefficient and lower limit value coefficient can be determined empirically or experimentally, in the present embodiment
In, upper limit coefficient may range from：0.96-1.01；Lower limit coefficient may range from：0.8-0.97.
It should be noted that step S32 and step S31 can also be carried out simultaneously in actual applications regardless of tandem.
Step S33, if the difference of half hitch chalaza and the integrated value is more than higher limit or less than lower limit, basis
Relation between the corrected parameter of the integrated value and oil-filled offset, obtain the oil-filled offset of the upper limit corrected parameter or under
Limit the corrected parameter of oil-filled offset.
In the present embodiment, can be by looking into the corrected parameter table of comparisons or integration of integrated value and the oil-filled offset of the upper limit
Value and the corrected parameter table of comparisons of the oil-filled offset of lower limit, or by analogue simulation etc., obtain on corresponding to the integrated value
Limit the corrected parameter of oil-filled offset or the corrected parameter of the oil-filled offset of lower limit.Wherein, the above-mentioned table of comparisons is by a large amount of
The corrected parameter that the integrated value obtained limits oil-filled offset with up/down is tested, then carries out acquisition of tabulating；Can also be by imitative
The means such as true simulation obtain the above-mentioned table of comparisons.In addition, in actual applications, oil-filled compensation can also be limited to integrated value and up/down
The corrected parameter of value is fitted, and is obtained homologous thread, is not limited herein.
In a specific embodiment, the integrated value can be such as table 1 with the corrected parameter table of comparisons of the oil-filled offset of the upper limit
It is shown：
The integrated value of table 1 and the corrected parameter table of comparisons of the oil-filled offset of the upper limit
The corrected parameter table of comparisons of the integrated value and the oil-filled offset of the upper limit can be as shown in table 2：
The integrated value of table 2 and the corrected parameter table of comparisons of the oil-filled offset of lower limit
For example, when the difference of kisspoint points and the integrated value is more than higher limit, and integrated value is -5, amendment ginseng
It is several, it should be 3.
Further, when difference≤higher limit of lower limit≤kisspoint points and the integrated value, the upper limit is filled
The corrected parameter of the corrected parameter of oily offset and the oil-filled offset of the lower limit is 0.So, as lower limit≤kisspoint
When point and difference≤higher limit of the integrated value, you can offset is not adjusted, avoids excessively frequently adjusting compensation
Value.Specifically, if kisspoint points and integrated value difference are more than higher limit, corrected parameter is from integrated value and the oil-filled benefit of the upper limit
Repay in the corrected parameter table of comparisons of value and search, otherwise corrected parameter is equal to 0；Under if kisspoint points are less than with integrated value difference
Limit value, then corrected parameter is searched from the corrected parameter table of comparisons of the integrated value with the oil-filled offset of lower limit, otherwise corrected parameter etc.
In 0.In the present embodiment, the corrected parameter according to oil-filled offset is modified to oil-filled offset, after obtaining amendment
Oil-filled offset can include：Oil-filled offset is subtracted to the corrected parameter of the oil-filled offset of the upper limit, and it is oil-filled plus lower limit
The corrected parameter of offset, as revised oil-filled offset.
In embodiments of the present invention, the product of the difference of kisspoint points and clutch goal pressure is obtained by integration control
Score value, and set the higher limit and lower limit of the difference of kisspoint points and the integrated value, when kisspoint points with it is described
When the difference of integrated value exceedes upper lower limit value, then the corrected parameter of oil-filled offset is obtained, be so easily achieved and obtain oil-filled benefit
The corrected parameter of value is repaid, and by setting the upper lower limit value of difference, avoids frequently adjusting in the premise for ensureing Adjusting accuracy
Oil-filled offset, algorithm are practical.
Correspondingly, present invention also offers a kind of oil-filled adaptive control system for wet clutch, such as Fig. 5 institutes
Show, including：
Clutch state acquisition module 501, work as the oil-filled state of front clutch for being obtained in wriggling operating mode；
Goal pressure acquisition module 502, for when the oil-filled state of front clutch is oil-filled state of a control, obtain currently from
Clutch goal pressure；
Pressure adjusting module 503, in default adjustment duration, clutch will to be adjusted to when front clutch goal pressure
Device half hitch chalaza；
Corrected parameter acquisition module 504, after terminating for adjustment, in default integration control duration, according to quasi integration
Point and the relation between the difference of clutch actual pressure and the corrected parameter of oil-filled offset, obtain the amendment of oil-filled offset
Parameter；
Offset correcting module 505, oil-filled offset is modified for the corrected parameter according to oil-filled offset, obtained
To revised oil-filled offset；
Goal pressure adjusting module 506, for adjusting clutch goal pressure according to revised oil-filled offset.
In order to ensure that clutch goal pressure reaches kisspoint points, the pressure adjusting module 503 at the appointed time
Including：
Difference acquiring unit, for obtaining the difference when front clutch goal pressure with clutch half hitch chalaza；
Speed acquiring unit is adjusted, for according to default adjustment duration and when front clutch goal pressure and clutch
The difference of half hitch chalaza, obtain pressure of the clutch in adjustment duration and adjust speed；
Pressure adjustment unit, clutch will be adjusted to when front clutch goal pressure for adjusting speed according to the pressure
Half hitch chalaza.
In the present embodiment, the corrected parameter acquisition module 504 includes：
Integral unit, for calculating in the adjustment duration and the integration control duration, half hitch chalaza is real with clutch
The integrated value of the difference of border pressure；
Bound determining unit, for determining the higher limit and lower limit of half hitch chalaza and the difference of the integrated value, institute
Higher limit is stated as upper limit value coefficient and the product of half hitch chalaza；The lower limit is lower limit value coefficient and the product of half hitch chalaza；
Corrected parameter acquiring unit, if the difference for half hitch chalaza and the integrated value is more than higher limit or is less than
Lower limit, then according to the relation between the corrected parameter of the integrated value and oil-filled offset, obtain the oil-filled offset of the upper limit
The corrected parameter of corrected parameter or the oil-filled offset of lower limit.
So, directly corrected parameter can be used to be adjusted i.e. oil-filled offset in oil-filled control process afterwards
Can, neither influence that this is oil-filled, while oil-filled oil-filled offset next time is have adjusted, it ensure that control system to precharge pressure
Dynamic adjusts.
Further, the corrected parameter acquiring unit is specifically used for by looking into repairing for the oil-filled offset of integrated value and the upper limit
Positive parameter lookup table or integrated value and the corrected parameter table of comparisons of the oil-filled offset of lower limit, obtain on corresponding to the integrated value
Limit the corrected parameter of oil-filled offset or the corrected parameter of the oil-filled offset of lower limit.
Certainly, in actual applications, the system can also further comprise：Memory module (not shown), it is any for preserving
The parameter that module and/or any unit obtain, such as：Oil-filled offset corrected parameter, clutch goal pressure etc..So, may be used
So that according to existing information, oil-filled Self Adaptive Control is carried out to wet clutch.
Oil-filled adaptive control system provided in an embodiment of the present invention for wet clutch, when vehicle driving cycle is
Wriggling operating mode and when clutch is in oil-filled state of a control, is obtained when front clutch target by goal pressure acquisition module 502
Pressure, and adjusted clutch goal pressure to kisspoint points, by corrected parameter acquisition module by pressure adjusting module 503
504, according to the relation between the corrected parameter of the difference and oil-filled offset of kisspoint points and clutch actual pressure, obtain
The corrected parameter of oil-filled offset, then offset correcting module 505 according to the corrected parameter of oil-filled offset to oil-filled compensation
Value is modified, and obtains revised oil-filled offset, and goal pressure adjusting module 506 is adjusted according to revised oil-filled offset
Whole clutch goal pressure.Because the corrected parameter of oil-filled offset can reflect the deviation of current kisspoint points, target
Pressure adjusting module is adjusted using it to clutch goal pressure so that clutch pressure control is more accurate, can be lifted
Driving comfort simultaneously extends life of clutch.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Point mutually referring to.For system embodiment, because it is substantially similar to embodiment of the method, so describing
Fairly simple, the relevent part can refer to the partial explaination of embodiments of method.System embodiment described above is only to show
Meaning property, wherein the unit illustrated as separating component can be or may not be it is physically separate, as list
The part of member display can be or may not be physical location, you can with positioned at a place, or can also be distributed to
On multiple artificial windows.Some or all of module therein can be selected to realize this embodiment scheme according to the actual needs
Purpose.Those of ordinary skill in the art are without creative efforts, you can to understand and implement.
The embodiment of the present invention is described in detail above, embodiment used herein is carried out to the present invention
Illustrate, the explanation of above example is only intended to help to understand method and system of the invention；Meanwhile for the one of this area
As technical staff, according to the thought of the present invention, there will be changes in specific embodiments and applications, to sum up institute
State, this specification content should not be construed as limiting the invention.
Claims (10)
1. a kind of oil-filled self-adaptation control method for wet clutch, including：Obtained in wriggling operating mode when front clutch fills
Oil condition；When the oil-filled state of front clutch is oil-filled state of a control, front clutch goal pressure is worked as in acquisition；Characterized in that,
Also include：
In default adjustment duration, clutch half hitch chalaza will be adjusted to when front clutch goal pressure；
After adjustment terminates, in default integration control duration, according to half hitch chalaza and the difference of clutch actual pressure with filling
Relation between the corrected parameter of oily offset, obtain the corrected parameter of oil-filled offset；
Oil-filled offset is modified according to the corrected parameter of oil-filled offset, obtains revised oil-filled offset；
According to revised oil-filled offset adjustment clutch goal pressure.
2. according to the method for claim 1, it is characterised in that it is described in default adjustment duration, front clutch will be worked as
Goal pressure, which is adjusted to clutch half hitch chalaza, to be included：
Obtain the difference with clutch half hitch chalaza when front clutch goal pressure；
According to default adjustment duration and when front clutch goal pressure and the difference of clutch half hitch chalaza, clutch is obtained
Pressure in adjustment duration adjusts speed；
Clutch half hitch chalaza will be adjusted to when front clutch goal pressure by adjusting speed according to the pressure.
3. according to the method for claim 1, it is characterised in that it is described in default integration control duration, according to half hitch
Relation between the corrected parameter of the difference and oil-filled offset of chalaza and clutch actual pressure, obtains repairing for oil-filled offset
Positive parameter includes：
Calculate in the adjustment duration and the integration control duration, the integration of the difference of half hitch chalaza and clutch actual pressure
Value；
The higher limit and lower limit of half hitch chalaza and the difference of the integrated value are determined, the higher limit is upper limit value coefficient and half
The product of binding site；The lower limit is lower limit value coefficient and the product of half hitch chalaza；
If the difference of half hitch chalaza and the integrated value is more than higher limit or less than lower limit, according to the integrated value with
Relation between the corrected parameter of oil-filled offset, obtain the corrected parameter or the oil-filled offset of lower limit of the oil-filled offset of the upper limit
Corrected parameter.
4. according to the method for claim 3, it is characterised in that the amendment according to the integrated value and oil-filled offset
Relation between parameter, the corrected parameter of the corrected parameter or the oil-filled offset of lower limit that obtain the oil-filled offset of the upper limit include：
By the corrected parameter table of comparisons or integrated value and the oil-filled offset of lower limit of looking into integrated value and the oil-filled offset of the upper limit
The corrected parameter table of comparisons, obtain the corrected parameter or the oil-filled offset of lower limit of the oil-filled offset of the upper limit corresponding to the integrated value
Corrected parameter.
5. according to the method for claim 3, it is characterised in that if the difference of lower limit≤half hitch chalaza and the integrated value
Value≤higher limit, then the corrected parameter of the corrected parameter of the oil-filled offset of the upper limit and the oil-filled offset of the lower limit is 0.
6. according to the method for claim 5, it is characterised in that the corrected parameter according to oil-filled offset is to oil-filled benefit
Repay value to be modified, obtaining revised oil-filled offset includes：
Oil-filled offset is subtracted to the corrected parameter of the oil-filled offset of the upper limit, and adds the corrected parameter of the oil-filled offset of lower limit,
As revised oil-filled offset.
A kind of 7. oil-filled adaptive control system for wet clutch, it is characterised in that including：
Clutch state acquisition module, work as the oil-filled state of front clutch for being obtained in wriggling operating mode；
Goal pressure acquisition module, for when the oil-filled state of front clutch is oil-filled state of a control, front clutch mesh to be worked as in acquisition
Mark pressure；
Pressure adjusting module, in default adjustment duration, clutch half hitch will to be adjusted to when front clutch goal pressure
Chalaza；
Corrected parameter acquisition module, after terminating for adjustment, in default integration control duration, according to half hitch chalaza and clutch
Relation between the corrected parameter of the difference of device actual pressure and oil-filled offset, obtain the corrected parameter of oil-filled offset；
Offset correcting module, oil-filled offset is modified for the corrected parameter according to oil-filled offset, corrected
Oil-filled offset afterwards；
Goal pressure adjusting module, for adjusting clutch goal pressure according to revised oil-filled offset.
8. system according to claim 7, it is characterised in that the pressure adjusting module includes：
Difference acquiring unit, for obtaining the difference when front clutch goal pressure with clutch half hitch chalaza；
Speed acquiring unit is adjusted, for according to default adjustment duration and when front clutch goal pressure and clutch half hitch
The difference of chalaza, obtain pressure of the clutch in adjustment duration and adjust speed；
Pressure adjustment unit, clutch half hitch will be adjusted to when front clutch goal pressure for adjusting speed according to the pressure
Chalaza.
9. system according to claim 7, it is characterised in that the corrected parameter acquisition module includes：
Integral unit, for calculating in the adjustment duration and the integration control duration, half hitch chalaza and the actual pressure of clutch
The integrated value of the difference of power；And
Bound determining unit, the higher limit and lower limit of the difference for determining half hitch chalaza and the integrated value, it is described on
Limit value is upper limit value coefficient and the product of half hitch chalaza；The lower limit is lower limit value coefficient and the product of half hitch chalaza；
Corrected parameter acquiring unit, if being more than higher limit or less than lower limit for the difference of half hitch chalaza and the integrated value
Value, then according to the relation between the corrected parameter of the integrated value and oil-filled offset, obtain the amendment of the oil-filled offset of the upper limit
The corrected parameter of parameter or the oil-filled offset of lower limit.
10. system according to claim 9, it is characterised in that the corrected parameter acquiring unit is specifically used for by looking into
Integrated value and the corrected parameter table of comparisons or integrated value and the corrected parameter pair of the oil-filled offset of lower limit of the oil-filled offset of the upper limit
According to table, the corrected parameter of the oil-filled offset of the upper limit corresponding to the integrated value or the amendment ginseng of the oil-filled offset of lower limit are obtained
Number.
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| CN109027051B (en) * | 2018-07-19 | 2020-07-17 | 中国第一汽车股份有限公司 | Wet type separation clutch control method |
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| CN113819159B (en) * | 2021-08-18 | 2022-12-27 | 东风汽车集团股份有限公司 | Pressure control method and system of clutch |
| CN114110043B (en) * | 2021-11-01 | 2024-06-14 | 中国第一汽车股份有限公司 | Main oil pressure self-adaptive control method, device, equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135027A (en) * | 1995-03-31 | 1996-11-06 | 奔驰公司 | The Control Mechanism of the Clutchable Friction Connector in the Gear Shifting Device of Automobile |
| CN103089986A (en) * | 2013-01-18 | 2013-05-08 | 浙江吉利汽车研究院有限公司杭州分公司 | Automatic transmission clutch control method |
| CN103277428A (en) * | 2013-05-31 | 2013-09-04 | 安徽江淮汽车股份有限公司 | Wet dual-clutch automatic transmission and precharging pressure control method thereof |
| CN103758994A (en) * | 2014-02-20 | 2014-04-30 | 盛瑞传动股份有限公司 | Automatic gearbox self-adaption optimization gear-shifting control method |
| CN103883642A (en) * | 2014-04-16 | 2014-06-25 | 奇瑞汽车股份有限公司 | Control method and device for clutch oil pressure |
| CN103982650A (en) * | 2014-06-03 | 2014-08-13 | 盛瑞传动股份有限公司 | Half junction point judgment method and system of hydraulic automatic transmission clutch |
| CN104976243A (en) * | 2015-07-17 | 2015-10-14 | 上海汽车变速器有限公司 | Precharge oil pressure self-adaption method and system for wet type double clutch automatic gearbox |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4687096B2 (en) * | 2004-02-10 | 2011-05-25 | トヨタ自動車株式会社 | Control device for belt type continuously variable transmission |
-
2016
- 2016-04-11 CN CN201610225666.6A patent/CN105782286B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135027A (en) * | 1995-03-31 | 1996-11-06 | 奔驰公司 | The Control Mechanism of the Clutchable Friction Connector in the Gear Shifting Device of Automobile |
| CN103089986A (en) * | 2013-01-18 | 2013-05-08 | 浙江吉利汽车研究院有限公司杭州分公司 | Automatic transmission clutch control method |
| CN103277428A (en) * | 2013-05-31 | 2013-09-04 | 安徽江淮汽车股份有限公司 | Wet dual-clutch automatic transmission and precharging pressure control method thereof |
| CN103758994A (en) * | 2014-02-20 | 2014-04-30 | 盛瑞传动股份有限公司 | Automatic gearbox self-adaption optimization gear-shifting control method |
| CN103883642A (en) * | 2014-04-16 | 2014-06-25 | 奇瑞汽车股份有限公司 | Control method and device for clutch oil pressure |
| CN103982650A (en) * | 2014-06-03 | 2014-08-13 | 盛瑞传动股份有限公司 | Half junction point judgment method and system of hydraulic automatic transmission clutch |
| CN104976243A (en) * | 2015-07-17 | 2015-10-14 | 上海汽车变速器有限公司 | Precharge oil pressure self-adaption method and system for wet type double clutch automatic gearbox |
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