EP2715192A1 - Procédé d'adaptation d'opérations de changement de vitesse - Google Patents

Procédé d'adaptation d'opérations de changement de vitesse

Info

Publication number
EP2715192A1
EP2715192A1 EP12715864.0A EP12715864A EP2715192A1 EP 2715192 A1 EP2715192 A1 EP 2715192A1 EP 12715864 A EP12715864 A EP 12715864A EP 2715192 A1 EP2715192 A1 EP 2715192A1
Authority
EP
European Patent Office
Prior art keywords
actual value
motor vehicle
control device
switching
transmission control
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Withdrawn
Application number
EP12715864.0A
Other languages
German (de)
English (en)
Inventor
Rudolf Kalthoff
Jörg KURTH
Roland Mair
Thomas JÄGER
Florian Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP2715192A1 publication Critical patent/EP2715192A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • F16H61/0437—Smoothing ratio shift by using electrical signals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/304—Acceleration sensors
    • 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
    • F16H2061/0075—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 characterised by a particular control method
    • F16H2061/0087—Adaptive control, e.g. the control parameters adapted by learning
    • 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
    • F16H59/48—Inputs being a function of acceleration

Definitions

  • the invention relates to a method for the adaptation of circuits to be implemented in a transmission of a motor vehicle according to the preamble of claim 1 or according to the preamble of claim 5 or according to the preamble of claim 8. Furthermore, the invention relates to a transmission control device.
  • a switching strategy for a transmission of a motor vehicle is known.
  • at least one acceleration value corresponding to acceleration of the motor vehicle namely an actual value
  • this actual value being compared by the transmission control device with a desired value, and based on a deviation between the actual value and the desired value, the execution of subsequent circuits by the transmission control device is adapted, namely the fact that at least one clutch is readjusted during ongoing switching operations or Umkuppelvorêt.
  • the object of the present invention is to provide a novel method for adapting circuits to be implemented in a transmission of a motor vehicle and a transmission control device for carrying out the method.
  • the or each actual value corresponding to an acceleration of the motor vehicle is detected individually for a plurality of successive switching phases of each circuit, wherein the switching phase individual actual value is compared with a switching phase individual desired value from the transmission control device, and wherein based on a switching phase individual deviation between the actual value and the target value, the execution of subsequent circuits is individually adapted by the transmission control device for each switching phase.
  • the actual values are obtained via a scan of a tilt sensor of the motor vehicle, in particular of a tilt sensor of the transmission.
  • the first aspect of the invention which provides a switching phase-individual adaptation of circuits to be executed, it is possible to concretely adapt those switching phases in which a relatively large deviation between the actual value and the target value is determined.
  • By subdividing circuits into different switching phases according to the first aspect of the invention it is also possible to look at and individually adapt different types of shifting, such as closed clutch circuits and synchronizing circuits either by the power plant or a clutch of the transmission.
  • the adaptation of circuits can be further improved.
  • the transmission control device for carrying out the method is defined in claim 12.
  • Fig. 1 is a powertrain diagram of a motor vehicle.
  • the operation of the drive unit 1 is controlled or regulated by a motor control device 4, for which purpose the motor control device 4 exchanges data with the drive unit 1.
  • the operation of the automatic or automated transmission 2 is controlled by a transmission control device 5, which exchanges data with the transmission 2 for this purpose. Further, the engine control device 4 and the transmission control device 5 exchange data with each other.
  • the transmission control device 5 is used in particular to trigger circuits in the transmission 2 and the control and / or regulation of the sequence of circuits in the transmission 2.
  • the execution of a circuit in the transmission 2 is typically involved at least one switching element 6 of the transmission 2, wherein the or each Switching element 6 can be designed as a clutch or as a brake.
  • FIG. 1 shows that the automatic or automated transmission 2 is assigned an inclination sensor 7, which in practice only serves to determine the inclination of the motor vehicle.
  • the present invention now relates to a method and a transmission control device 5, by means of which circuits to be implemented in the transmission 2 can be adapted so as to ensure circuits with high shifting comfort over the entire service life of the motor vehicle with possible aging of components involved in the circuit design Transmission 2.
  • a switching phase individual actual value corresponding to at least one acceleration of the motor vehicle is detected by measurement for a plurality of successive switching phases of each circuit, each switching phase individual actual value having a switching phase-specific nominal value Value is compared by the transmission control device 5, and wherein on the basis of a switching phase individual deviation between the respective actual value and the respective desired value, the execution of subsequent circuits is individually adapted by the transmission control device 5 for each of the affected switching phases. If, in a switching phase, the deviation between the respective switching-phase-specific actual value and the switching-phase-specific desired value is large, an incomfortable execution of the respective switching phase is concluded, so that then this switching phase is adapted for a subsequent circuit. However, if the deviation in a switching phase the switching phase individual actual value and the switching phase individual target value low, it can be concluded that the respective switching phase is carried out comfortably, so that no adaptation is required for such a switching phase.
  • each circuit is subdivided into the switching phases load reduction phase, Gangauslegephase, neutral phase, Gangeinlegephase and load reduction phase, preferably for each of these switching phases a switching phase individual actual value is determined and compared with a corresponding switching phase individual target value to each of these switching phases a switching phase-specific deviation between the respective actual value and the respective desired value.
  • the execution of each switching phase of a subsequent circuit can then be adapted individually on the basis of these switching phase-specific deviations.
  • the load is reduced by a drive unit 1 or involved in the circuit switching element 6 of the transmission 2, wherein when the load reduction phase, a large deviation between the switching phase individual actual value and the switching phase individual target value is determined to Adaptation of this switching phase, a load reduction curve of the drive unit 1 and / or a load reduction curve of the respective switching element 6 involved can be adjusted.
  • load reduction course in particular a load reduction gradient is adjusted.
  • synchronization is first approached and, for this purpose, a synchronizing force is built up. Only then does the actual gear engagement take place at a defined differential speed. In this case, the gear engagement can take place at too high a differential speed, whereby unwanted accelerations in the motor vehicle are caused. If an excessive deviation between the respective switching-phase-specific actual value and the respective switching-phase-specific nominal value is thus determined for a gear engagement phase, the synchronous force build-up can be adapted to adapt this gear engagement phase by modifying forces and / or desired path profiles, for example.
  • a circuit is subdivided into different switching phases and for each switching phase an actual value is detected, which corresponds to an acceleration of the motor vehicle and which is compared with a corresponding desired value, based on a deviation between the switching phase individual Actual value and the switching-phase-specific desired value to individually adapt the respective switching phase of subsequent circuits to be executed.
  • the or each actual value corresponding to an acceleration of the motor vehicle is obtained by sampling the inclination sensor 7, wherein the sampling rate is selected such that for each of the shift phases load buildup phase and transition phase and neutral phase and gear engagement phase and Lastabbauphase at least one switching phase individual actual value is determined, which can then be compared with a switching phase individual target value to make the above switching phase individual adaptation of the individual switching phases circuits to be executed.
  • the sampling rate of the inclination sensor 7 is significantly increased in comparison with the prior art, in which an inclination sensor exclusively serves to determine an inclination of the motor vehicle, so that the inclination sensor 7 can be used as an acceleration sensor and accordingly the corresponding actual values for the individual switching phases provides.
  • a tilt sensor 7 is made accessible to a further function, namely the provision of actual values corresponding to an acceleration of the motor vehicle, on the basis of which switching phases of circuits to be executed are adapted.
  • the method for adapting circuits to be implemented in a transmission of a motor vehicle is implemented in a transmission control device 5 and is carried out by the latter.
  • the transmission control device 5 comprises means for carrying out the method. These means include, in particular, an interface for exchanging data with the transmission 2 and inclination sensor 7, a processor for evaluating the actual values and a memory for maintaining the corresponding desired values.
  • the desired values are dependent in particular on a loading of the motor vehicle and / or a driver request and / or a driving resistance and / or a gear jump to be executed with the circuit. For different loading and / or a driver's wishes and / or driving resistance and / or gear jumps different target values can be kept. For this purpose, further input data must then be kept available and evaluated, such.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

L'invention concerne un procédé d'adaptation d'opérations de changement de vitesse exécutées dans la boîte de vitesses (2) d'un véhicule automobile, les changements de vitesse étant déclenchés par un dispositif de commande (5) de la boîte de vitesses (2) et leur déroulement étant commandé et/ou régulé par un dispositif de commande (5) de la boîte de vitesses. Selon le procédé, au moins une valeur réelle correspondant à une accélération du véhicule automobile est détectée par une technique de mesure, ladite valeur réelle est comparée par le dispositif de commande (5) de la boîte de vitesses à une valeur théorique correspondante, et l'exécution des changements de vitesse suivants est adaptée par le dispositif de commande (5) de la boîte de vitesse sur la base d'un écart entre la valeur réelle et la valeur théorique. Chaque valeur réelle correspondant à une accélération du véhicule automobile est détectée individuellement pour plusieurs phases de commutation successives de chaque changement de vitesse, la valeur réelle propre à chaque phase de commutation est comparée par le dispositif de commande (5) de la boîte de vitesses à une valeur théorique propre à chaque phase de commutation, et l'exécution des changements de vitesse suivants est adaptée individuellement pour chaque phase de commutation par le dispositif de commande (5) de la boîte de vitesses sur la base d'un écart propre à chaque phase de commutation entre la valeur réelle et la valeur théorique.
EP12715864.0A 2011-05-31 2012-03-20 Procédé d'adaptation d'opérations de changement de vitesse Withdrawn EP2715192A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011076767A DE102011076767A1 (de) 2011-05-31 2011-05-31 Verfahren zur Adaption von Schaltungen
PCT/EP2012/054884 WO2012163557A1 (fr) 2011-05-31 2012-03-20 Procédé d'adaptation d'opérations de changement de vitesse

Publications (1)

Publication Number Publication Date
EP2715192A1 true EP2715192A1 (fr) 2014-04-09

Family

ID=45998249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12715864.0A Withdrawn EP2715192A1 (fr) 2011-05-31 2012-03-20 Procédé d'adaptation d'opérations de changement de vitesse

Country Status (5)

Country Link
US (1) US9353856B2 (fr)
EP (1) EP2715192A1 (fr)
CN (1) CN103597253B (fr)
DE (1) DE102011076767A1 (fr)
WO (1) WO2012163557A1 (fr)

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Publication number Priority date Publication date Assignee Title
US8880308B2 (en) * 2011-12-12 2014-11-04 Chrysler Group Llc Methods and system for using vehicle longitudinal acceleration for transmission control
DE102015210812B4 (de) * 2015-06-12 2018-11-29 Zf Friedrichshafen Ag Verfahren zur Adaption einer geregelten, als Überschneidungsschaltung durchgeführten Lastschaltung
DE102016211269A1 (de) * 2016-06-23 2017-12-28 Zf Friedrichshafen Ag Verfahren zum Betreiben eines Fahrzeugantriebsstranges
CN110219976B (zh) * 2019-06-19 2020-12-01 山推工程机械股份有限公司 推土机电控换档方法

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DE4237878C2 (de) * 1992-11-10 2003-09-25 Bosch Gmbh Robert Verfahren zur Regelung des Schaltkomforts bei Fahrzeugen mit automatischem Getriebe
JP3374167B2 (ja) 1994-12-01 2003-02-04 ジヤトコ株式会社 自動変速機の学習制御装置
DE19518700A1 (de) 1995-05-22 1996-11-28 Bayerische Motoren Werke Ag Komfortbewertungsvorrichtung für Kraftfahrzeuge mit Mitteln zur Erfassung und Auswertung der Längsbeschleunigung
DE10050169A1 (de) * 2000-10-11 2002-05-02 Daimler Chrysler Ag Meßsystem für ein Kraftfahrzeug
DE10204185A1 (de) * 2002-02-01 2003-08-07 Zahnradfabrik Friedrichshafen Adaptionsverfahren für die Steuerung von Schaltelementen
JP2004044715A (ja) * 2002-07-12 2004-02-12 Fuji Heavy Ind Ltd 自動変速機の制御装置
FR2857444B1 (fr) * 2003-07-07 2005-09-30 Renault Sa Procede et dispositif d'estimation de la declivite d'une surface sur laquelle est engage un vehicule automobile
JP4289176B2 (ja) * 2004-03-01 2009-07-01 トヨタ自動車株式会社 車両の変速時制御装置
US7715965B2 (en) * 2004-10-15 2010-05-11 Ford Global Technologies System and method for qualitatively determining vehicle loading conditions
JP4810865B2 (ja) * 2005-04-14 2011-11-09 トヨタ自動車株式会社 自動変速機の制御装置
DE102005021952A1 (de) 2005-05-12 2006-11-23 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Antriebseinheit eines Fahrzeugs
DE102007006996A1 (de) 2007-02-14 2008-08-21 Robert Bosch Gmbh Schaltstrategie für Getriebe
WO2009013004A2 (fr) * 2007-07-26 2009-01-29 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Procédé de commande d'un passage de rapport montant dans une transmission à double embrayage
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Also Published As

Publication number Publication date
DE102011076767A1 (de) 2012-12-06
CN103597253A (zh) 2014-02-19
US20140088843A1 (en) 2014-03-27
CN103597253B (zh) 2015-09-09
WO2012163557A1 (fr) 2012-12-06
US9353856B2 (en) 2016-05-31

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