CN105822692A - Self-learning method for half joint point for double clutches - Google Patents
Self-learning method for half joint point for double clutches Download PDFInfo
- Publication number
- CN105822692A CN105822692A CN201610242657.8A CN201610242657A CN105822692A CN 105822692 A CN105822692 A CN 105822692A CN 201610242657 A CN201610242657 A CN 201610242657A CN 105822692 A CN105822692 A CN 105822692A
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- China
- Prior art keywords
- half hitch
- clutch
- hitch chalaza
- pressure
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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 method for a wet-type dual-clutch automatic transmission of acquiring a half joint point of wet-type clutches through self learning so as to ensure the wet-type dual-clutch automatic transmission to acquire a correct half joint point value in the running process. According to the method, whether the size of the half joint point is suitable for the clutches or not is judged by calculating the response speeds of the actual pressure when the clutches are at the specific command pressure, and thus the half joint point value is regulated.
Description
Technical field
The invention belongs to wet-type double-clutch automatic speed-change device and control technical field, relate to the pressure half hitch chalaza self-learning method of a kind of double clutch being applied to this wet-type double-clutch automatic speed-change device.
Background technology
Dual-clutch transmission, as a kind of automatic transmission scheme, is different from general Transmission System, in addition to the comfortableness of the motility and general automatic transmission that have manual transmission, moreover it is possible to provide unremitting power to export.
Half hitch chalaza is the datum mark that wet clutch controls.Inaccurate half hitch chalaza can directly influence life-span and the comfortableness of vehicle operation of clutch, ride comfort of the response speed of starting, gearshift etc. of such as creeping.During the use of variator, impact in view of factors such as abrasions during double clutch conformity of production and use, its half hitch chalaza will change, timely and effectively double clutch quasi integration point is carried out self study, ensure that the half hitch chalaza of double clutch, all the time in optimal state, may consequently contribute to keep and improve transmission performance.
The Chinese patent of application publication number CN104421359A discloses the half hitch chalaza self-learning method of a kind of automatic mechanical transmission dry clutch, the Chinese patent of application publication number CN103982650A discloses a kind of hydraulic automatic speed variator (AT) based on the half hitch chalaza decision method judging pressure divergence value, the United States Patent (USP) of application publication number US2015/0051803A1 discloses a kind of double-clutch automatic gearbox half hitch chalaza self-learning method based on power shaft rotation speed change, application publication number US2014/0067174A1 United States Patent (USP) discloses the self-learning method of a kind of hybrid power clutch.
Summary of the invention
The task of the present invention is to propose a kind of double clutch half hitch chalaza self-learning method, it is applied to wet-type double-clutch automatic speed-change device, make variator when being applied to car load, optimal clutch half hitch chalaza can be obtained by self study, to ensure that this variator can run with optimal half hitch chalaza all the time, it is ensured that the ride comfort that the performance of variator and vehicle travel.
The present invention solves technical problem and adopts the following technical scheme that a kind of double clutch half hitch chalaza self-learning method, and it comprises the following steps:
S10, in vehicle travel process, when gearbox oil temperature is in set point, the non-torsion pass clutch controlled in double clutch sets up pressure with current half hitch chalaza for target；
S20, on the pressure-based that step S10 is set up, the order pressure of described non-torsion pass clutch progressively increases to target set point with fixed slope；
S30, when goal pressure up increases from half hitch chalaza, calculate the actual pressure rate of change at flex point, by the size of this rate of change judge current half hitch chalaza if appropriate for.
Optionally, described double clutch half hitch chalaza self-learning method also includes step S40；
S40, when actual pressure rate of change often occurring more than the situation of setting value, down counter is added an operation；When the count value of down counter is more than the threshold value set, half hitch chalaza is reduced a step-length set, and this down counter is reset；When actual pressure rate of change often occurring less than the situation of setting value, counter is added an operation；When the count value of counter is more than the threshold value set, half hitch chalaza is increased a step-length set, and this counter is reset.
Optionally, after step slo, step S15 is also included before step S20；
S15, calculating actual pressure and the absolute value of order pressure divergence, when this absolute value is less than when setting threshold value, perform step S20, when this absolute value is more than and sets threshold value, terminate self study process.
Optionally, in described step S10, when gearbox oil temperature is beyond set point, terminate self study process.
There is advantages that the double clutch half hitch chalaza self-learning method of the present invention can continuously perform at vehicle in real time, well avoid being caused the change of half hitch chalaza by the factor such as conformity of production and clutch abrasion and the vehicle performance that causes changes.
Accompanying drawing explanation
The detailed description of further below of the other technologies of the present invention and accompanying drawing.These accompanying drawings explain control method of the present invention for graphic ground.
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；
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, technical scheme is further elaborated.
Embodiment 1
Present embodiments provide a kind of double clutch half hitch chalaza self-learning method, especially one and be applied to wet-type double-clutch automatic speed-change device, i.e. form the double clutch pressure half hitch chalaza self-learning method of a kind of wet-type double-clutch automatic speed-change device.
It is clutch control hydraulic system sketch with reference to Fig. 1, Fig. 1.
Described clutch control includes fuel reserve tank, oil pump and two-bit triplet electromagnetic valve, and described oil pump is by oily suction stored in fuel reserve tank, and exports hydraulic oil；Described oil delivery side of pump connects with the oil-in A of described two-bit triplet electromagnetic valve, and the oil return opening B of described two-bit triplet electromagnetic valve connects with described fuel reserve tank；The oil-out P of described two-bit triplet electromagnetic valve connects with described wet-type dual-clutch, to provide hydraulic oil to described wet-type dual-clutch, and control a clutch linear motion of described wet-type dual-clutch, in conjunction with Fig. 1, when described two-bit triplet electromagnetic valve is positioned at left position (position in Fig. 1), for described wet-type dual-clutch carries out the process of pressure release, the clutch A of the most described wet-type dual-clutch is to left movement so that clutch A separates；When described two-bit triplet electromagnetic valve is positioned at right position (the two-bit triplet electromagnetic valve in Fig. 1 is to left movement), now to supplying hydraulic oil in described wet-type dual-clutch, i.e. described wet-type dual-clutch is carried out oil-filled, and the clutch A of described wet-type dual-clutch is moved right, thus clutch A combines.
And described wet dual clutch transmission includes two gear arrangements；Each gear arrangement is formed by a wet clutch, chiller and TR, and this double-clutch speed changer is identical with wet dual clutch transmission structure of the prior art, will repeat the most one by one at this.
Described wet dual clutch transmission also includes that at least one clutch input speed sensor device, two clutch pressures measure sensor device, two clutch output speed sensor devices and an OSS device；In the present embodiment, described clutch input speed sensor device can detect clutch input speed；Described clutch pressure measures sensor device can detect the pressure of the oil circuit of the oil of clutch in this hydraulic module；Described clutch output speed sensor device can detect clutch output speed；Meanwhile, described OSS device can detect the rotating speed of output shaft.
Describe the double clutch half hitch chalaza self-learning method of the present embodiment in detail below in conjunction with Fig. 3, the method includes:
Step S10: in vehicle travel process, in the range of the gearbox oil temperature set, controls double clutch and sets up pressure with current half hitch chalaza for target.
For different half hitch chalaza set in advance, the actual pressure of the double clutch response condition difference to order pressure.In vehicle travel process, the non-torsion pass clutch first controlled in double clutch carries out oil-filled with current quasi integration point, i.e. sets up pressure with current half hitch chalaza for target.
It is additionally, since under different oil temperatures, the response meeting difference of non-torsion pass clutch pressure, thus can affect the calculating of non-torsion pass clutch actual pressure rate of change, cause the judgement of double binding site that deviation occurs.Therefore, when carrying out half hitch chalaza self study, need that oil temperature is limited to specific oil temperature interval.In the present embodiment, preferably, the interval of described oil temperature can be 30-70 DEG C.
S20, on the pressure-based that step S10 is set up, the actual pressure of described non-torsion pass clutch progressively increases to target set point with fixed slope.
When this non-torsion pass clutch is oil-filled complete after, i.e. on the pressure-based that step S10 is set up, then the order pressure controlling this non-torsion pass clutch rises to setting value with fixing slope.
S30, when goal pressure up increases from half hitch chalaza, calculate the actual pressure rate of change at flex point, by the size of this rate of change judge current half hitch chalaza if appropriate for.
In the present embodiment, while the order pressure of clutch rises with fixing slope, calculate the rate of change Δ P of actual pressure.In the starting stage that actual pressure is followed, it is contemplated that this characteristic of the operating lag of objective reality in hydraulic system, the relative order pressure of setting up of actual pressure has delay, thus form flex point.For different half hitch chalaza, the Δ P at described half hitch chalaza can difference.Then actual pressure can progressively follow the change of order pressure, as shown in Figure 2.For different half hitch chalaza, the pressure change rate at actual pressure ascent stage is different.When the half hitch chalaza being currently set is higher, actual pressure rate of change Δ P can be less；When half hitch chalaza is on the low side, actual pressure rate of change Δ P can be bigger.
There is conforming problem in the response in view of the oil-filled and actual pressure of non-torsion pass clutch, may there is certain occasionality, there will be the most non-oil-filled effect of torsion pass clutch bad and affect the situations such as the calculating of pressure change rate, in order to get rid of the interference of these occasionality factors, the double clutch half hitch chalaza self-learning method of the present embodiment also includes step S40 (after step S30): when often there is Δ P situation more than setting value Δ P2, down counter adds an operation；When the count value of down counter is more than the threshold value set, half hitch chalaza is reduced a step-length set, and this down counter is reset；When Δ P situation less than setting value Δ P1 often occurs, counter is added an operation；When the count value of counter is more than the threshold value set, half hitch chalaza is increased a step-length set, and this counter is reset.
Owing to the quality of the non-oil-filled effect of torsion pass clutch directly influences the response condition of actual pressure, so when the non-oil-filled effect of torsion pass clutch is bad, it is to avoid calculate Δ P；Double clutch half hitch chalaza self-learning method for this present embodiment also includes step S15 (after step slo, before step S20): calculate the absolute value of actual pressure and order pressure divergence, when this absolute value is less than setting threshold value PMinFillErrorTime, illustrate oil-filled well, it is allowed to carry out self study, when this absolute value more than set threshold value time, illustrate oil-filled bad, do not allow to carry out self study.
In the present embodiment, in described step S1, when gearbox oil temperature is beyond set point, terminate self study process.I.e. when performing double clutch half hitch chalaza self-learning method, it is first determined whether meet the condition entering half hitch chalaza self study, entry condition is: (1) gearbox oil temperature is in set point；And (2) when carrying out oil-filled completing with current quasi integration point the absolute value of clutch pressure deviation value less than setting threshold value；If being unsatisfactory for above-mentioned entry condition, the most do not allow to carry out self study.
In conjunction with the self study process of Fig. 2, when described non-torsion pass clutch is carried out Stress control, including clutch oil-filled stage and clutch pressure ascent stage；In the oil-filled stage, clutch carries out oil-filled with current half hitch chalaza for order pressure.When oil-filled completing, calculate the absolute value of clutch actual pressure and order pressure difference value, when absolute value allows to carry out clutch half hitch chalaza self study less than when setting threshold value.At clutch pressure ascent stage, calculate the rate of change of actual pressure, when carrying out oil-filled with different quasi integration points, have different responses at this stage actual pressure, rate of change also can be different, carry out half hitch chalaza self study according to the size of actual pressure rate of change and judge.
The sequencing of above example only for ease of describing, does not represent the quality of embodiment.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a 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 set point, the non-torsion pass clutch controlled in double clutch sets up pressure with current half hitch chalaza for target；
S20, on the pressure-based that step S10 is set up, the order pressure of described non-torsion pass clutch progressively increases to target set point with fixed slope；
S30, when goal pressure up increases from half hitch chalaza, calculate the actual pressure rate of change at flex point, by the size of this rate of change judge current half hitch chalaza if appropriate for.
Double clutch half hitch chalaza self-learning method the most according to claim 1, it is characterised in that also include step S40；
S40, when actual pressure rate of change often occurring more than the situation of setting value, down counter is added an operation；When the count value of down counter is more than the threshold value set, half hitch chalaza is reduced a step-length set, and this down counter is reset；When actual pressure rate of change often occurring less than the situation of setting value, counter is added an operation；When the count value of counter is more than the threshold value set, half hitch chalaza is increased a step-length set, and this counter is reset.
Double clutch half hitch chalaza self-learning method the most according to claim 2, it is characterised in that after step slo, also include step S15 before step S20；
S15, calculating actual pressure and the absolute value of order pressure divergence, when this absolute value is less than when setting threshold value, perform step S20, when this absolute value is more than and sets threshold value, terminate self study process.
Double clutch half hitch chalaza self-learning method the most according to claim 3, it is characterised in that in described step S10, when gearbox oil temperature is beyond set point, terminates self study process.
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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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| CN201610242657.8A CN105822692B (en) | 2016-04-18 | 2016-04-18 | Double clutch half hitch chalaza self-learning method |
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| CN105822692B CN105822692B (en) | 2018-01-12 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499750A (en) * | 2016-11-24 | 2017-03-15 | 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 |
| CN106870600A (en) * | 2017-03-21 | 2017-06-20 | 中国第汽车股份有限公司 | The adaptive approach of wet-type double-clutch automatic speed-change device clutch Half engagement point |
| CN107061551A (en) * | 2017-03-28 | 2017-08-18 | 中国第汽车股份有限公司 | A kind of wet-type dual-clutch Half engagement point adaptive approach |
| CN107100947A (en) * | 2017-05-15 | 2017-08-29 | 上海汽车变速器有限公司 | Wet-type dual-clutch half hitch chalaza self-learning optimization method and system |
| 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 |
| CN107387599A (en) * | 2017-09-12 | 2017-11-24 | 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 |
| CN107504171A (en) * | 2017-09-22 | 2017-12-22 | 中国第汽车股份有限公司 | The half hitch chalaza determination methods and system of a kind of hydraulic automatic speed variator clutch |
| 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 |
| CN108980335A (en) * | 2017-06-02 | 2018-12-11 | 上海汽车集团股份有限公司 | Triggering method and device, the double disengaging type automatic transmission of clutch half hitch chalaza self study |
| CN109185448A (en) * | 2018-09-30 | 2019-01-11 | 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 |
| CN112032294A (en) * | 2020-09-14 | 2020-12-04 | 一汽解放汽车有限公司 | Vehicle operation method and device |
| CN112443655A (en) * | 2019-08-30 | 2021-03-05 | 广州汽车集团股份有限公司 | Clutch semi-joint point self-adaption method and device, control equipment and storage medium |
| CN114857184A (en) * | 2022-04-22 | 2022-08-05 | 浙江吉利控股集团有限公司 | Clutch control method and device and storage medium |
| CN115280033A (en) * | 2020-02-18 | 2022-11-01 | 邦奇动力Psa电子变速箱有限责任公司 | Method for determining a clutch half-engagement point |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499750A (en) * | 2016-11-24 | 2017-03-15 | 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 |
| CN106870600A (en) * | 2017-03-21 | 2017-06-20 | 中国第汽车股份有限公司 | The adaptive approach of wet-type double-clutch automatic speed-change device clutch Half engagement point |
| 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 |
| CN107061551A (en) * | 2017-03-28 | 2017-08-18 | 中国第汽车股份有限公司 | 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 |
| CN107100947A (en) * | 2017-05-15 | 2017-08-29 | 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 |
| CN108980335A (en) * | 2017-06-02 | 2018-12-11 | 上海汽车集团股份有限公司 | Triggering method and device, the double disengaging type automatic transmission of clutch half hitch chalaza self study |
| 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 |
| CN107387599A (en) * | 2017-09-12 | 2017-11-24 | 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 |
| CN107504171A (en) * | 2017-09-22 | 2017-12-22 | 中国第汽车股份有限公司 | The half hitch chalaza determination methods and system of a kind of hydraulic automatic speed variator clutch |
| 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 |
| CN109185448A (en) * | 2018-09-30 | 2019-01-11 | 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 |
| CN112443655A (en) * | 2019-08-30 | 2021-03-05 | 广州汽车集团股份有限公司 | Clutch semi-joint point self-adaption method and device, control equipment and storage medium |
| CN115280033A (en) * | 2020-02-18 | 2022-11-01 | 邦奇动力Psa电子变速箱有限责任公司 | Method for determining a clutch half-engagement point |
| CN112032294A (en) * | 2020-09-14 | 2020-12-04 | 一汽解放汽车有限公司 | Vehicle operation method and device |
| CN114857184A (en) * | 2022-04-22 | 2022-08-05 | 浙江吉利控股集团有限公司 | Clutch control method and device and storage medium |
| 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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| CN105822692B (en) | 2018-01-12 |
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