DE102008000484A1 - Method for hysteresis adaptation for friction element of drive, involves adapting friction element to its opening point and factor for coupling pressure is supplied - Google Patents
Method for hysteresis adaptation for friction element of drive, involves adapting friction element to its opening point and factor for coupling pressure is supplied Download PDFInfo
- Publication number
- DE102008000484A1 DE102008000484A1 DE102008000484A DE102008000484A DE102008000484A1 DE 102008000484 A1 DE102008000484 A1 DE 102008000484A1 DE 102008000484 A DE102008000484 A DE 102008000484A DE 102008000484 A DE102008000484 A DE 102008000484A DE 102008000484 A1 DE102008000484 A1 DE 102008000484A1
- Authority
- DE
- Germany
- Prior art keywords
- adaptation
- speed
- friction element
- pressure
- hys
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
-
- 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
- F16D48/066—Control of fluid pressure, e.g. using an accumulator
-
- 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
- F16D2500/30—Signal inputs
- F16D2500/302—Signal inputs from the actuator
- F16D2500/3024—Pressure
-
- 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
- F16D2500/30—Signal inputs
- F16D2500/304—Signal inputs from the clutch
- F16D2500/30406—Clutch slip
-
- 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
- F16D2500/30—Signal inputs
- F16D2500/306—Signal inputs from the engine
- F16D2500/3067—Speed of the engine
-
- 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
- F16D2500/30—Signal inputs
- F16D2500/308—Signal inputs from the transmission
- F16D2500/3081—Signal inputs from the transmission from the input shaft
- F16D2500/30816—Speed of the input shaft
-
- 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
- F16D2500/50—Problem to be solved by the control system
- F16D2500/502—Relating the clutch
- F16D2500/50245—Calibration or recalibration of the clutch touch-point
-
- 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
- F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
- F16H2061/064—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means for calibration of pressure levels for friction members, e.g. by monitoring the speed change of transmission shafts
-
- 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
- F16H2342/00—Calibrating
- F16H2342/04—Calibrating engagement of friction elements
-
- 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
- F16H2342/00—Calibrating
- F16H2342/04—Calibrating engagement of friction elements
- F16H2342/042—Point of engagement
Abstract
Description
Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Hysterese-Adaption für ein Reibschaltelement eines Getriebes gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a method for hysteresis adaptation for a friction switching element of a transmission according to the Preamble of claim 1.
Aus dem Stand der Technik sind Verfahren zur Adaption von Schaltabläufen eines Automatgetriebes bekannt, die dazu dienen, die Gangwahl an das individuelle Fahrverhalten anzupassen und eine hohe Schaltqualität zu gewährleisten. Hierbei wird der Fülldruck einer Kupplung oft als Adaptionsparameter verwendet.Out In the prior art are methods for adapting switching sequences an automatic transmission known, which serve the gear selection to the to customize individual driving behavior and a high shift quality to ensure. Here, the filling pressure of a Coupling often used as an adaptation parameter.
Aus
der
Des
weiteren ist aus der
Ferner
ist aus der
Des
weiteren ist aus der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Adaptionsverfahren für ein Reibschaltelement eines Getriebes anzugeben, im Rahmen dessen die Hysterese der Kette EGS(elektronische Getriebesteuerung)/Hydraulik/Kupplung mitadaptiert wird.Of the The present invention is based on the object, an adaptation method for a friction switching element of a transmission, in Within it the hysteresis of chain EGS (electronic transmission control) / hydraulic / clutch is mitadaptiert.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus dem Unteranspruch hervor.These The object is solved by the features of claim 1. Further embodiments and advantages of the invention go out of the subclaim.
Demnach wird vorgeschlagen, die beim Öffnen und Schließen eines Schaltelementes ermittelten Fülldruckparameter des Reibschaltelementes zur Adaption der Schaltungsparameter zu verwenden.Therefore It is suggested when opening and closing a switching element determined filling pressure of the Reibschaltelementes to adapt the circuit parameters to use.
Insbesondere wird vorgeschlagen, dass das Reibschaltelement bei noch an ihm anstehendem Drehmoment zunächst an dessen Öffnungspunkt adaptiert wird, wobei ein erster Wert für den Kupplungsdruck geliefert wird und wobei, wenn der Schlupf einen vorgegebenen Schwellenwert erreicht, ein Drucksprung ausgegeben und das Schaltelement von diesem Sprung rampenförmig wieder geschlossen wird.Especially It is proposed that the friction switching element while still pending on him torque is first adapted to its opening point, wherein a first value for the clutch pressure is supplied is and where, if the slip is a predetermined threshold reached, issued a pressure jump and the switching element of this Jump is closed ramp again.
Gemäß der Erfindung wird während dieses Vorgangs ein Drehzahlfenster für die Motordrehzahl bzw. Getriebeeingangsdrehzahl angestrebt, wobei wenn die erreichte Maximaldrehzahl größer ist, als die obere Grenze des Drehzahlfensters der Druck um einen vorgegebenen Adaptionsschritt erhöht wird und wobei, wenn die erreichte Maximaldrehzahl kleiner ist, als die untere Grenze des Drehzahlfensters der Druck um einen vorgegebenen Adaptionsschritt reduziert wird. Für den Fall, dass die erreichte Maximaldrehzahl innerhalb des Drehzahlfensters liegt, ist die Adaption abgeschlossen.According to the Invention becomes a speed window during this process sought for the engine speed or transmission input speed, where the maximum speed reached is greater is, as the upper limit of the speed window, the pressure by one predetermined adaptation step is increased and wherein, if the maximum speed reached is less than the lower limit the speed window of the pressure reduced by a predetermined adaptation step becomes. In the event that reached the maximum speed within the speed window, the adaptation is completed.
Durch die erfindungsgemäße Konzeption wird zum Einen die Hysterese der Kette EGS/Hydraulik/Kupplung mitadaptiert; zum Anderen wird neben der Adaption des Öffnungsdrucks auch eine Adaption des Schließdrucks des Schaltelementes ermöglicht.By the conception according to the invention becomes on the one hand the hysteresis of the EGS / hydraulic / clutch chain is also adapted; to the Other becomes besides the adaptation of the opening pressure also allows an adaptation of the closing pressure of the switching element.
In vorteilhafter Weise werden bei einem Schaltelement die Betätigungszustände „Öffnen” und „Schließen” gleichzeitig erfasst, wodurch zusätzliche Adaptionen, wie beispielsweise eine Flare Adaption bei einer Zugrückschaltung entfallen.In Advantageously, in a switching element, the operating states "open" and "close" simultaneously detected, whereby additional adaptations, such as a Flare adaptation in a Zugrückschaltung omitted.
Die Erfindung wird im folgenden anhand der beigefügten Figuren beispielhaft näher erläutert. Es zeigen:The Invention will be described below with reference to the accompanying figures exemplified in more detail. Show it:
Gemäß der
Erfindung und bezugnehmend auf
Hierbei wird bei Erreichen einer vorgegebenen Schwelle für den Schlupf ein Drucksprung P_HYS ausgegeben und die Kupplung von diesem Sprung rampenförmig wieder geschlossen. Gemäß der Erfindung wird während dieses Vorgangs für die Maximaldrehzahl N_T ein Drehzahlfenster N_T_Min < N_T < N_T_Max angestrebt; die erfindungsgemäße Adaption wird derart durchgeführt, dass die Motordrehzahl bzw. Getriebeeingangsdrehzahl N_T innerhalb des vorgegebenen Drehzahlfensters (N_T_Min, N_T_Max) liegt.in this connection is reached when a predetermined threshold for the Slip a pressure jump P_HYS output and the clutch of this jump closed again in a ramp. According to the Invention is during this process for the maximum speed N_T desired a speed window N_T_Min <N_T <N_T_Max; the adaptation according to the invention is carried out in such a way that the engine speed or transmission input speed N_T within the predetermined speed window (N_T_Min, N_T_Max) is located.
Überschreitet
die erreichte Maximaldrehzahl N_T N_T_Max wird der Wert von P_HYS
um einen Adaptionsschritt P_HYS_ADA erhöht, wodurch die Drehzahl
sinkt; unterscheitet dahingegen die erreichte Maximaldrehzahl N_T
N_T_Min so wird der Wert von P_HYS um einen Adaptionsschritt P_HYS_ADA reduziert,
was zu einer Schlupfreduzierung und somit zu einer Erhöhung
der Drehzahl führt. Wenn die erreichte Maximaldrehzahl
innerhalb des Drehzahlfensters liegt, ist die Adaption abgeschlossen.
Der Adaptionsschritt kann beispielsweise 0,05 bar betragen, wie
in
In
- AA
- Verlauf des Drucks des Schaltelementes als Funktion der Zeitcourse the pressure of the switching element as a function of time
- BB
- Verlauf der Drehzahl als Funktion der Zeitcourse the speed as a function of time
- N_TN_T
- Drehzahlrotation speed
- N_T_MaxN_T_Max
- Obere Grenze für die DrehzahlUpper Limit for the speed
- N_T_MinN_T_Min
- Untere Grenze für die DrehzahlLower Limit for the speed
- P_HYSP_HYS
- Drucksprungpressure jump
- P_HYS_ADAP_HYS_ADA
- Adaptionsschrittadaptation step
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - EP 1196702 B1 [0003] - EP 1196702 B1 [0003]
- - DE 10042147 A1 [0004] DE 10042147 A1 [0004]
- - DE 10248179 A1 [0005] - DE 10248179 A1 [0005]
- - DE 19531675 A1 [0006] DE 19531675 A1 [0006]
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008000484A DE102008000484A1 (en) | 2008-03-03 | 2008-03-03 | Method for hysteresis adaptation for friction element of drive, involves adapting friction element to its opening point and factor for coupling pressure is supplied |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008000484A DE102008000484A1 (en) | 2008-03-03 | 2008-03-03 | Method for hysteresis adaptation for friction element of drive, involves adapting friction element to its opening point and factor for coupling pressure is supplied |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008000484A1 true DE102008000484A1 (en) | 2009-09-10 |
Family
ID=40935941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008000484A Withdrawn DE102008000484A1 (en) | 2008-03-03 | 2008-03-03 | Method for hysteresis adaptation for friction element of drive, involves adapting friction element to its opening point and factor for coupling pressure is supplied |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008000484A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106314418A (en) * | 2015-06-30 | 2017-01-11 | 罗伯特·博世有限公司 | A method for determining a contact point for an electronically actuated clutch in a vehicle |
DE102021201121A1 (en) | 2021-02-08 | 2022-08-11 | Zf Friedrichshafen Ag | Method for the pressure adaptation of a frictional shifting element of a transmission of a motor vehicle |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4442991A1 (en) * | 1994-12-02 | 1996-06-05 | Zahnradfabrik Friedrichshafen | Automatic drive |
DE19531675A1 (en) | 1995-08-29 | 1997-03-06 | Voith Gmbh J M | Method for operating a vehicle transmission |
WO1999018372A1 (en) * | 1997-10-06 | 1999-04-15 | Zf Friedrichshafen Ag | Method for adaptation of pressure of an overlapping upshifting |
DE10042147A1 (en) | 2000-08-26 | 2002-03-07 | Zahnradfabrik Friedrichshafen | Controling motor vehicle gearbox involves adapting change element pressure processes to compensate for component tolerances, further adaptation to compensate change quality influences |
EP1196702B1 (en) | 1999-07-22 | 2002-11-06 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Method for testing the function of an electrohydraulically controlled automatic transmission |
DE10248179A1 (en) | 2002-10-16 | 2004-04-29 | Zf Friedrichshafen Ag | Filling pressure adapting method for switching element of automobile automatic transmission using determination of filling pressure time characteristic during defined opening of switching element |
DE69821299T2 (en) * | 1997-09-04 | 2004-07-01 | Aisin AW Co., Ltd., Anjo | Hydraulic control system for automatic transmissions |
-
2008
- 2008-03-03 DE DE102008000484A patent/DE102008000484A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4442991A1 (en) * | 1994-12-02 | 1996-06-05 | Zahnradfabrik Friedrichshafen | Automatic drive |
DE19531675A1 (en) | 1995-08-29 | 1997-03-06 | Voith Gmbh J M | Method for operating a vehicle transmission |
DE69821299T2 (en) * | 1997-09-04 | 2004-07-01 | Aisin AW Co., Ltd., Anjo | Hydraulic control system for automatic transmissions |
WO1999018372A1 (en) * | 1997-10-06 | 1999-04-15 | Zf Friedrichshafen Ag | Method for adaptation of pressure of an overlapping upshifting |
EP1196702B1 (en) | 1999-07-22 | 2002-11-06 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Method for testing the function of an electrohydraulically controlled automatic transmission |
DE10042147A1 (en) | 2000-08-26 | 2002-03-07 | Zahnradfabrik Friedrichshafen | Controling motor vehicle gearbox involves adapting change element pressure processes to compensate for component tolerances, further adaptation to compensate change quality influences |
DE10248179A1 (en) | 2002-10-16 | 2004-04-29 | Zf Friedrichshafen Ag | Filling pressure adapting method for switching element of automobile automatic transmission using determination of filling pressure time characteristic during defined opening of switching element |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106314418A (en) * | 2015-06-30 | 2017-01-11 | 罗伯特·博世有限公司 | A method for determining a contact point for an electronically actuated clutch in a vehicle |
DE102021201121A1 (en) | 2021-02-08 | 2022-08-11 | Zf Friedrichshafen Ag | Method for the pressure adaptation of a frictional shifting element of a transmission of a motor vehicle |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |