CN105822692B - Double clutch half hitch chalaza self-learning method - Google Patents
Double clutch half hitch chalaza self-learning method Download PDFInfo
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- CN105822692B CN105822692B CN201610242657.8A CN201610242657A CN105822692B CN 105822692 B CN105822692 B CN 105822692B CN 201610242657 A CN201610242657 A CN 201610242657A CN 105822692 B CN105822692 B CN 105822692B
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- Prior art keywords
- clutch
- half hitch
- hitch chalaza
- pressure
- setting
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of 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
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/56—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the main clutch
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of 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
- F16H—GEARING
- F16H2710/00—Control devices for speed-change mechanisms, the speed change control is dependent on function parameters of the gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a kind of method for obtaining wet clutch half hitch chalaza by self study for wet-type double-clutch automatic speed-change device, to ensure wet-type double-clutch automatic speed-change device in the process of running, correct quasi integration point value can be obtained.For this method by calculating clutch under specific order pressure, the response speed of actual pressure judges whether the size of half hitch chalaza adapts to clutch, and adjusts quasi integration point value with this.
Description
Technical field
The invention belongs to wet-type double-clutch automatic speed-change device control technology field, be related to it is a kind of be applied to the wet type it is double from
The pressure half hitch chalaza self-learning method of the double clutch of clutch automatic transmission.
Background technology
Dual-clutch transmission is different from general Transmission System as a kind of automatic transmission scheme, except
Possess outside the flexibility of manual transmission and the comfortableness of general automatic transmission, moreover it is possible to which unremitting power output is provided.
Half hitch chalaza is the datum mark of wet clutch control.Inaccurate half hitch chalaza can directly influence clutch
Life-span and the comfortableness of vehicle operation, such as the response speed for starting of creeping, the ride comfort etc. of gearshift.In making for speed changer
During, it is contemplated that the influence of the factor such as abrasion during double clutch conformity of production and use, its half hitch chalaza will
It can change, self study timely and effectively is carried out to double clutch quasi integration point, ensures the half hitch chalaza of double clutch all the time
In optimal state, may consequently contribute to keep and improve transmission performance.
Application publication number CN104421359A Chinese patent discloses a kind of automatic mechanical transmission dry clutch
Half hitch chalaza self-learning method, application publication number CN103982650A Chinese patent discloses a kind of hydraulic automatic speed variator
(AT) based on the half hitch chalaza decision method for judging pressure divergence value, application publication number US2015/0051803A1 United States Patent (USP)
Disclose a kind of double-clutch automatic gearbox half hitch chalaza self-learning method based on input shaft rotating speed change, application publication number
A kind of self-learning method of hybrid power clutch of US2014/0067174A1 U.S. Patent Publications.
The content of the invention
The task of the present invention is to propose a kind of double clutch half hitch chalaza self-learning method, applied to wet-type dual-clutch certainly
Dynamic speed changer, makes speed changer when applied to vehicle, optimal clutch half hitch chalaza can be obtained by self study, to ensure
The speed changer can be run with optimal half hitch chalaza all the time, ensure the performance of speed changer and the ride comfort of vehicle traveling.
The present invention solves technical problem and adopted the following technical scheme that：A kind of double clutch half hitch chalaza self-learning method, its
Comprise the following steps：
S10, in vehicle travel process, when gearbox oil temperature is in setting range, control double clutch in non-biography
Twist away from clutch and pressure is established as target using current half hitch chalaza；
S20, on the pressure-based that step S10 is established, the order pressure of the non-torsion pass clutch is with fixed slope
Progressively increase to target set point；
S30, when goal pressure up increases from half hitch chalaza, calculate flex point at actual pressure rate of change, by this
The size of rate of change come judge current half hitch chalaza if appropriate for.
Optionally, the double clutch half hitch chalaza self-learning method also includes step S40；
S40, when it is every there is the situation that actual pressure rate of change is more than setting value when, down counter is carried out plus a behaviour
Make；When the count value of down counter is more than the threshold value of setting, half hitch chalaza is reduced to the step-length of a setting, and this is subtracted into meter
Number device is reset；When every actual pressure rate of change of appearance is less than the situation of setting value, counter is carried out plus one operates；
When the count value of counter is more than the threshold value of setting, half hitch chalaza is increased to the step-length of a setting, and this is added into counting
Device is reset.
Optionally, after step slo, step S15 is also included before step S20；
S15, the absolute value for calculating actual pressure and order pressure divergence, when the absolute value is less than given threshold, perform
Step S20, when the absolute value is more than given threshold, terminate self study process.
Optionally, in the step S10, when gearbox oil temperature is when beyond setting range, self study process is terminated.
The present invention has the advantages that：The double clutch half hitch chalaza self-learning method of the present invention can be in real time in vehicle
Continuously perform, avoid well by the factors such as conformity of production and clutch abrasion cause half hitch chalaza change caused by car
Performance change.
Brief description of the drawings
The detailed description and accompanying drawings in the further below face of other technologies of the present invention.These accompanying drawings are used to be illustrated ground explanation originally
The described control method of invention.
Fig. 1 is the clutch control hydraulic system sketch of the present invention；
Fig. 2 is the pressure control procedure sketch of non-torsion pass clutch during clutch half hitch chalaza self study；
Fig. 3 is the flow chart of the double clutch half hitch chalaza self-learning method of the present invention；
Embodiment
Technical scheme is further elaborated with reference to embodiment and accompanying drawing.
Embodiment 1
Present embodiments provide a kind of double clutch half hitch chalaza self-learning method, especially it is a kind of be applied to wet type it is double from
Clutch automatic transmission, that is, form a kind of double clutch pressure half hitch chalaza self study side of wet-type double-clutch automatic speed-change device
Method.
With reference to figure 1, Fig. 1 is clutch control hydraulic system sketch.
The clutch control includes fuel reserve tank, oil pump and two-bit triplet magnetic valve, and the oil pump is by fuel reserve tank
Stored oil suction, and export hydraulic oil；The outlet of the oil pump connects with the oil inlet A of the two-bit triplet magnetic valve,
The oil return opening B of the two-bit triplet magnetic valve connects with the fuel reserve tank；The oil-out P of the two-bit triplet magnetic valve with it is described
Wet-type dual-clutch connects, and to provide hydraulic oil to the wet-type dual-clutch, and controls one of the wet-type dual-clutch
Clutch moves along a straight line, with reference to Fig. 1, when the two-bit triplet magnetic valve is located at left position (position in Fig. 1), for described wet
Formula double clutch carries out the process of pressure release, and now the clutch A of the wet-type dual-clutch is to left movement so that clutch
A is separated；When the two-bit triplet magnetic valve is located at right position (two-bit triplet magnetic valve to left movement) in Fig. 1, now to institute
State supply hydraulic oil in wet-type dual-clutch, i.e., it is oil-filled to wet-type dual-clutch progress, and cause the double clutches of the wet type
The clutch A of device is moved right, so as to which clutch A is combined.
And the wet dual clutch transmission includes two gear arrangements；Each gear arrangement is by a wet type
Clutch, cooling device and TR composition, the double-clutch speed changer and wet dual clutch transmission of the prior art
Structure is identical, no longer will repeat one by one herein.
The wet dual clutch transmission also includes at least one clutch input speed sensor device, two clutches
Pressure measurement sensor device, two clutch output speed sensor devices and an OSS device；This
In embodiment, the clutch input speed sensor device can detect clutch input speed；The clutch pressure measurement
Sensor device can detect the pressure of the oily oil circuit of clutch in the hydraulic module；The clutch output speed sensor dress
Clutch output speed can be detected by putting；Meanwhile the OSS device can detect the rotating speed of output shaft.
The double clutch half hitch chalaza self-learning method of the present embodiment is described in detail with reference to Fig. 3, this method includes：
Step S10：In vehicle travel process, in the range of the gearbox oil temperature of setting, control double clutch is with current
Half hitch chalaza establish pressure for target.
For different half hitch chalaza set in advance, the actual pressure of double clutch has to the response condition of order pressure
Institute's difference.In vehicle travel process, the non-torsion pass clutch in double clutch is controlled to be carried out with current quasi integration point first
It is oil-filled, i.e., pressure is established as target using current half hitch chalaza.
It is additionally, since under different oil temperatures, difference is understood in the response of non-torsion pass clutch pressure, thus can influence non-biography
The calculating of clutch actual pressure rate of change is twisted away from, causes the judgement of double of binding site deviation occur.Therefore, half hitch chalaza is being carried out
, it is necessary to which oil temperature is limited into specific oil temperature section during self study.In the present embodiment, preferably, the section of the oil temperature can
Think 30-70 DEG C.
S20, on the pressure-based that step S10 is established, the actual pressure of the non-torsion pass clutch is with fixed slope
Progressively increase to target set point.
After the completion of the non-torsion pass clutch is oil-filled, i.e., on the pressure-based that step S10 is established, then control the non-biography
The order pressure for twisting away from clutch rises to setting value with fixed slope.
S30, when goal pressure up increases from half hitch chalaza, calculate flex point at actual pressure rate of change, by this
The size of rate of change come judge current half hitch chalaza if appropriate for.
In the present embodiment, while the order pressure of clutch is risen with fixed slope, the change of actual pressure is calculated
Rate Δ P.In the starting stage that actual pressure follows, it is contemplated that this characteristic of the operating lag of objective reality in hydraulic system,
The relative order pressure of establishing of actual pressure has delay, thus form flex point.For different half hitch chalaza, described half
Δ P at binding site can be different.Then actual pressure can progressively follow the change of order pressure, as shown in Figure 2.For difference
Half hitch chalaza, be different in the pressure change rate of actual pressure ascent stage.When the half hitch chalaza being currently set is higher,
Actual pressure rate of change Δ P can be smaller；When half hitch chalaza is relatively low, actual pressure rate of change Δ P can be larger.
The problem of uniformity be present in view of oil-filled and actual pressure the response of non-torsion pass clutch, may have certain
Contingency, it may appear that for example non-oil-filled effect of torsion pass clutch is bad and situations such as influenceing the calculating of pressure change rate, in order to
Exclude the interference of these accidental sexual factors, the double clutch half hitch chalaza self-learning method of the present embodiment also include step S40 (
After step S30)：When every Δ P of appearance is more than setting value Δ P2 situation, down counter is carried out plus one operates；When
When the count value of down counter is more than the threshold value of setting, half hitch chalaza is reduced to the step-length of a setting, and by the down counter
Reset；When every Δ P of appearance is less than setting value Δ P1 situation, counter is carried out plus one operates；Work as counter
Count value when being more than the threshold value of setting, half hitch chalaza is increased to the step-length of a setting, and the counter reset.
Because the quality of the non-oil-filled effect of torsion pass clutch directly influences the response condition of actual pressure, so in non-biography
Twist away from the oil-filled effect of clutch it is bad when, avoid calculating Δ P；For this present embodiment double clutch half hitch chalaza self-learning method also
Including step S15 (after step slo, before step S20)：The absolute value of actual pressure and order pressure divergence is calculated, when
The absolute value is less than given threshold PMinFillErrorWhen, illustrate oil-filled good, it is allowed to carry out self study, set when the absolute value is more than
When determining threshold value, illustrate it is oil-filled bad, do not allow carry out self study.
In the present embodiment, in the step S1, when gearbox oil temperature is when beyond setting range, terminate self study process.
I.e. when performing double clutch half hitch chalaza self-learning method, it is first determined whether meeting the bar into half hitch chalaza self study
Part, entry condition are：(1) gearbox oil temperature is in setting range；And (2) with current quasi integration point carry out oil-filled completion when from
The absolute value of clutch pressure divergence value is less than given threshold；If being unsatisfactory for above-mentioned entry condition, do not allow to carry out self study.
With reference to Fig. 2 self study process, when carrying out Stress control to the non-torsion pass clutch, including clutch is oil-filled
Stage and clutch pressure ascent stage；In the oil-filled stage, clutch carries out oil-filled using current half hitch chalaza as order pressure.
During oil-filled completion, the absolute value of clutch actual pressure and order pressure difference value is calculated, is permitted when absolute value is less than given threshold
Perhaps clutch half hitch chalaza self study is carried out.In clutch pressure ascent stage, the rate of change of actual pressure is calculated, with different
When quasi integration point carries out oil-filled, actual pressure has different responses at this stage, and rate of change also can be different, according to actual pressure
The size of rate of change carries out the self study of half hitch chalaza and judged.
The sequencing of above example only for ease of describing, does not represent the quality of embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (3)
1. a kind of double clutch half hitch chalaza self-learning method, it is characterised in that comprise the following steps：
S10, in vehicle travel process, when gearbox oil temperature is in setting range, control double clutch in non-torsion pass from
Clutch establishes pressure using current half hitch chalaza as target；
S20, on the pressure-based that step S10 is established, the order pressure of the non-torsion pass clutch is gradual with fixed slope
Increase to target set point；
S30, when goal pressure up increases from half hitch chalaza, calculate flex point at actual pressure rate of change, pass through the change
The size of rate come judge current half hitch chalaza if appropriate for；
S40, when it is every there is the situation that actual pressure rate of change is more than setting value when, down counter is carried out plus an operation；
When the count value of down counter is more than the threshold value of setting, half hitch chalaza is reduced to the step-length of a setting, and this is subtracted into counting
Device is reset；When every actual pressure rate of change of appearance is less than the situation of setting value, counter is carried out plus one operates；When
When the count value of counter is more than the threshold value of setting, half hitch chalaza is increased to the step-length of a setting, and by the counter
Reset.
2. double clutch half hitch chalaza self-learning method according to claim 1, it is characterised in that after step slo,
Also include step S15 before step S20；
S15, the absolute value for calculating actual pressure and order pressure divergence, when the absolute value is less than given threshold, perform step
S20, when the absolute value is more than given threshold, terminate self study process.
3. double clutch half hitch chalaza self-learning method according to claim 2, it is characterised in that in the step S10,
When gearbox oil temperature is when beyond setting range, terminate self study process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610242657.8A CN105822692B (en) | 2016-04-18 | 2016-04-18 | Double clutch half hitch chalaza self-learning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610242657.8A CN105822692B (en) | 2016-04-18 | 2016-04-18 | Double clutch half hitch chalaza self-learning method |
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| CN105822692A CN105822692A (en) | 2016-08-03 |
| CN105822692B true CN105822692B (en) | 2018-01-12 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106499750B (en) * | 2016-11-24 | 2018-11-16 | 安徽江淮汽车集团股份有限公司 | A kind of automobile wet-type double-clutch Half engagement point self-learning method and system |
| CN106870600B (en) * | 2017-03-21 | 2019-04-02 | 中国第一汽车股份有限公司 | The adaptive approach of wet-type double-clutch automatic speed-change device clutch Half engagement point |
| CN107061551B (en) * | 2017-03-28 | 2018-12-21 | 中国第一汽车股份有限公司 | A kind of wet-type dual-clutch Half engagement point adaptive approach |
| CN107100947B (en) * | 2017-05-15 | 2019-01-08 | 上海汽车变速器有限公司 | Wet-type dual-clutch half hitch chalaza self-learning optimization method and system |
| CN108980335B (en) * | 2017-06-02 | 2020-06-26 | 上海汽车集团股份有限公司 | Self-learning triggering method and device for clutch half-joint point and dual-clutch automatic transmission |
| CN107380158A (en) * | 2017-07-25 | 2017-11-24 | 中国第汽车股份有限公司 | Dry clutch Half engagement point position self-learning method |
| CN107387599B (en) * | 2017-09-12 | 2019-02-12 | 安徽江淮汽车集团股份有限公司 | The half hitch chalaza self-learning method of wet dual-clutch automatic transmission |
| CN107504171B (en) * | 2017-09-22 | 2019-12-31 | 中国第一汽车股份有限公司 | Semi-joint point judgment method and system for clutch of hydraulic automatic transmission |
| CN108374890A (en) * | 2018-02-23 | 2018-08-07 | 安徽江淮汽车集团股份有限公司 | A kind of clutch engagement pressure self-learning method of double clutch gearbox |
| CN109185448B (en) * | 2018-09-30 | 2019-09-24 | 安徽江淮汽车集团股份有限公司 | A kind of wet-type dual-clutch transmission half hitch chalaza Fast Learning method and module |
| CN112443655B (en) * | 2019-08-30 | 2022-05-17 | 广州汽车集团股份有限公司 | Clutch semi-joint self-adaption method and device, control equipment and storage medium |
| BE1028064B1 (en) * | 2020-02-18 | 2021-09-13 | Punch Powertrain Psa E Trans Nv | Method for determining a coupling point of engagement |
| CN112032294B (en) * | 2020-09-14 | 2021-11-26 | 一汽解放汽车有限公司 | Vehicle operation method and device |
| CN114857184B (en) * | 2022-04-22 | 2024-03-08 | 浙江吉利控股集团有限公司 | Clutch control method, device and storage medium |
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| DE102009055063B4 (en) * | 2009-12-21 | 2023-03-23 | Zf Friedrichshafen Ag | Method of operating a clutch |
| CN102410365B (en) * | 2011-07-29 | 2014-04-02 | 奇瑞汽车股份有限公司 | Gear shifting and protection control strategy of wet clutch for continuously variable transmission |
| KR101371461B1 (en) * | 2012-09-06 | 2014-03-10 | 기아자동차주식회사 | Method and system for learning and controlling kiss point of engine clutch for hybrid electric vehicle |
| CN103277428B (en) * | 2013-05-31 | 2015-06-03 | 安徽江淮汽车股份有限公司 | Wet dual-clutch automatic transmission and precharging pressure control method thereof |
| US9127729B2 (en) * | 2013-08-16 | 2015-09-08 | GM Global Technology Operations LLC | Method of learning a clutch kiss point for a clutch of a dual clutch transmission |
| CN104421359B (en) * | 2013-08-21 | 2017-04-12 | 大陆汽车投资（上海）有限公司 | Clutch semi-joining point self-adapting method and mechanical automatic transmission |
| CN103629341B (en) * | 2013-12-13 | 2016-03-02 | 安徽江淮汽车股份有限公司 | A kind of wet-type double-clutch automatic speed-change case Characteristics of Solenoid Valve curve compensation method |
| CN103982650B (en) * | 2014-06-03 | 2016-06-08 | 盛瑞传动股份有限公司 | The Half engagement point decision method of hydraulic automatic speed variator clutch and system |
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