DE10251620A1 - Control device for automatic transmission gear, comprising at least one sensor checking level of vibration for appropriate adjusting of slip - Google Patents
Control device for automatic transmission gear, comprising at least one sensor checking level of vibration for appropriate adjusting of slip Download PDFInfo
- Publication number
- DE10251620A1 DE10251620A1 DE10251620A DE10251620A DE10251620A1 DE 10251620 A1 DE10251620 A1 DE 10251620A1 DE 10251620 A DE10251620 A DE 10251620A DE 10251620 A DE10251620 A DE 10251620A DE 10251620 A1 DE10251620 A1 DE 10251620A1
- Authority
- DE
- Germany
- Prior art keywords
- vehicle
- control device
- slip
- vibration
- vibration sensor
- 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- Withdrawn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
- 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
-
- 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
- F16H61/14—Control of torque converter lock-up clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
-
- 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
- F16D2500/10—System to be controlled
- F16D2500/104—Clutch
- F16D2500/10406—Clutch position
- F16D2500/10412—Transmission line of a vehicle
-
- 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
- F16D2500/10—System to be controlled
- F16D2500/108—Gear
- F16D2500/1081—Actuation type
- F16D2500/1085—Automatic transmission
-
- 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
- F16D2500/50293—Reduction of vibrations
-
- 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
- F16D2500/506—Relating the transmission
- F16D2500/50676—Optimising drive-train operating point, e.g. selecting gear ratio giving maximum fuel economy, best performance
-
- 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
- F16D2500/512—Relating to the driver
- F16D2500/5122—Improve passengers comfort
-
- 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
- F16D2500/70422—Clutch parameters
- F16D2500/70426—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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
- F16H2057/0012—Vibration-damping or noise reducing means specially adapted for gearings for reducing drive line oscillations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Regelvorrichtung gemäß dem Oberbegriff des Patentanspruches 1, sowie ein Verfahren gemäß dem Oberbegriff des Patentanspruches 2 zur Regelung des Schlupfes zwischen einem Antriebselement und einem Abtriebselement einer Antriebsstrangkupplung eines Fahrzeuges, insbesondere eines hydrodynamischen Drehmomentwandlers eines Fahrzeugs.The present invention relates to a control device according to the preamble of claim 1, and a method according to the preamble of the claim 2 for regulating the slip between a drive element and an output element of a drive train clutch of a vehicle, in particular a hydrodynamic torque converter of a vehicle.
Fahrzeuge mit Automatikgetriebe weisen üblicherweise einen hydrodynamischen Drehmomentwandler mit einem Antriebselement, das als Pumpenrad bezeichnet wird, und einem Abtriebselement auf, das als Turbinenrad bezeichnet wird. Während des Betriebs drehen das Antriebselement und das Abtriebselement mit unterschiedlicher Drehzahlen, das heißt zwischen dem Antriebselement und dem Abtriebselement tritt ein gewisser Schlupf auf. Bei manchen Drehmomentwandlern kann zur Verbrauchseinsparung die Wandlerkupplung überbrückt werden. Die Überbrückung kann „starr" erfolgen, wobei dann zwischen dem Antriebselement und dem Abtriebselement bzw. dem Pumpenrad und dem Turbinenrad kein Schlupf auftritt. Alternativ dazu kann die Überbrückung auch mit einem vorgegebenen Schlupf erfolgen.Vehicles with automatic transmissions usually have a hydrodynamic torque converter with a drive element, which is called an impeller and an output element, which is called the turbine wheel. This turns during operation Drive element and the output element with different speeds, that is called A certain amount occurs between the drive element and the driven element Slip on. Some torque converters can save fuel the converter clutch can be bridged. The bridging can take place “rigidly,” then between the drive element and the output element or the pump wheel and the turbine wheel does not slip. Alternatively, you can the bridging too with a given slip.
Bei herkömmlichen Wandlerkupplungen können in Abhängigkeit von einer Vielzahl von Betriebsparametern unterschiedliche „Schlupfkennfelder" appliziert werden, was mit hohem Aufwand verbunden ist. In die Schlupfregelung geht beispielsweise die momentane Drehungleichförmigkeit des Motors, der gewählte Übertragungspfad im Fahrzeug, die aktivierte Getriebegangstufe, die Betriebstemperatur, der gewählte Komfortanspruch (Sport oder Economy) etc. ein. Das Ziel besteht darin, im überbrückten Zustand des Wandlers den Schlupf so zu regeln, dass ein möglichst guter Akustik- und Schwingungskomfort bei gleichzeitiger Beachtung guter Verbrauchswerte erreicht wird.With conventional converter clutches can dependent on different "slip maps" are applied from a large number of operating parameters, which involves a lot of effort. Go into the slip control for example the current rotational irregularity of the motor, the chosen transmission path in the vehicle, the activated gear stage, the operating temperature, the elected Comfort (sport or economy) etc. The goal is there in it, in the bridged state of the converter to regulate the slip so that a possible good acoustic and vibration comfort with simultaneous attention good consumption values is achieved.
Problematisch hierbei ist, dass in der „Verursacher- und Übertragungskette" der Schwingungen, das heißt im „Gesamtsystem Fahrzeug" gewisse Toleranzen vorliegen. Es muss deshalb üblicherweise ein deutlicher „Sicherheitsabstand" zur theoretisch „ausschöpfbaren" Komfortgrenze eingehalten werden. Dieser „Sicherheitsabstand" führt zu einem Mehrverbrauch an Kraftstoff. Da tendenziell wegen des Sicherheitsabstandes zur Komfortgrenze ein zu großer Schlupf eingeregelt wird, verschlechtert sich zudem das Fahrverhalten (Gummibandeffekt).The problem here is that in the "polluter and transmission chain "of vibrations, that is called in the "overall system Vehicle "certain Tolerances exist. It is therefore usually necessary to maintain a clear “safety margin” from the theoretically “exploitable” comfort limit become. This "safety distance" leads to additional consumption of fuel. Because tends to because of the safety distance Comfort limit too big Slip is regulated, the driving behavior also deteriorates (Rubber band effect).
Ein weiterer Nachteil besteht darin, dass für eine serientaugliche Applikation von Schlupfkennfeldern, die nach Fahrzeug- Motor- und Ländervarianten differenziert sind, ein sehr großer Entwicklungsaufwand entsteht.Another disadvantage is that for a Application of slip maps suitable for series production, according to vehicle Engine and country variants are differentiated, a very large development effort arises.
Aufgabe der Erfindung ist es, eine verbesserte Regelvorrichtung bzw. ein verbessertes Regelverfahren zur Regelung des Schlupfes einer Fahrzeug kupplung zu schaffen, die bzw. das einfach und dennoch wirkungsvoll arbeitend konzipiert ist.The object of the invention is a improved control device or an improved control method to regulate the slip of a vehicle clutch to create the or that is designed to be simple yet effective.
Diese Aufgabe wird durch die Merkmale der Patentansprüche 1 bzw. 2 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.This task is due to the characteristics of claims 1 or 2 solved. Advantageous refinements and developments of the invention are the dependent claims refer to.
Das Grundprinzip der Erfindung besteht darin, den Schlupf der Kupplung bzw. des hydrodynamischen Drehmomentwandlers in Abhängigkeit von im bzw. am Fahrzeug auftretenden Schwingungen zu regeln. Hierzu ist mindestens ein Schwingungssensor vorgesehen, der gemessene Schwingungssignale an eine Regelvorrichtung liefert. In Abhängigkeit von den Schwingungssignalen regelt die Regelvorrichtung dann den Schlupf der Fahrzeugkupplung bzw. des hydrodynamischen Drehmomentwandlers. Als Führungsgröße der Schlupfregelung wird also gemäß der Erfindung der aktuelle „Fahrkomfortzustand" verwendet. Die Erfindung unterscheidet sich vom Stand der Technik also vor allem dadurch, dass keine fest applizierten Schlupfkennfelder verwendet werden, sondern dass die Schlupfregelung in Abhängigkeit vom aktuellen Komfortzustand erfolgt.The basic principle of the invention is therein, the slip of the clutch or the hydrodynamic torque converter dependent on to regulate vibrations occurring in or on the vehicle. For this at least one vibration sensor is provided, the measured vibration signals delivers to a control device. Depending on the vibration signals the control device then regulates the slip of the vehicle clutch or of the hydrodynamic torque converter. As a reference variable of the slip control so according to the invention the current "driving comfort condition" used. The invention differs from the prior art mainly in that that no permanently applied slip maps are used, but that the slip control depending on the current comfort level he follows.
Vorzugsweise wird bei Überschreiten eines vorgegebenen Schwingungsbzw. Geräuschpegels, der als „Brumm- Dröhn- oder Rasselgrenze" interpretiert werden kann, ein größerer Schlupf eingeregelt, bis das gewünschte Komfortniveau erreicht wird. Zugleich wird darauf geachtet, dass der aktuelle Schlupf minimiert wird.Preferably, if exceeded a predetermined vibration or Noise level, which is called "hum droning or rattle limit "interpreted can become a bigger slip adjusted until the desired Comfort level is reached. At the same time, care is taken to ensure that the current slip is minimized.
Zur Erfassung des Komfortzustandes können im Fahrzeug ein, vorzugsweise aber mehrere Schwingungssensoren angeordnet sein. Beispielsweise können im bzw. am Antriebsstrang Schwingungssensoren angeordnet sein, welche die im Antriebsstrang häufig auftretenden niederfrequenten Schwingungen messen. Alternativ oder zusätzlich können Schwingungs sensoren vorgesehen sein, die höherfrequente Körperschallschwingungen, zum Beispiel des Getriebegehäuses messen, wobei derartige höherfrequente Körperschallschwingungen für Dröhn- und Rasselgeräusche charakteristisch sind. Vorzugsweise ist ein Schwingungssensor am Achsträger angeordnet. Alternativ oder ergänzend dazu können Schwingungssensoren an Lagerstellen oder an schallabstrahlenden Stellen wie der Hutablage angeordnet sein. Ferner können im Innenraum Schwingungssensoren in Form von Luftschallsensoren angeordnet sein.To record the comfort condition can One, but preferably a plurality of vibration sensors are arranged in the vehicle his. For example Vibration sensors can be arranged in or on the drive train, which those common in the drivetrain measure occurring low-frequency vibrations. Alternatively or vibration sensors can also be used be provided the higher frequency Structure-borne vibrations, for example the gearbox measure, such higher frequencies Structure-borne vibrations for droning and rales are characteristic. A vibration sensor is preferably on axle arranged. Alternatively or in addition can do this Vibration sensors at bearings or at sound-emitting Places like the parcel shelf. Furthermore, in Interior vibration sensors arranged in the form of airborne sound sensors his.
Die von den Schwingungssensoren gelieferten Schwingungssignale werden im Getriebesteuergerät eingelesen. Ein vorgegebener Regelalgorithmus ermittelt dann unter Berücksichtigung vorgegebener Regelprioritäten wie Spritverbrauch o.ä. sowie unter Berücksichtigung von Randbedingungen wie der thermischen Belastbarkeit der Kupplung einen „idealen" Momentanschlupfwert für die Kupplung.The vibration signals supplied by the vibration sensors are read into the transmission control unit. A specified control algorithm then determines taking into account specified control priorities such as fuel consumption or the like. and taking into account boundary conditions such as the thermal load capacity of the clutch an "ideal" instantaneous slip value for the clutch.
Im Falle eines hydrodynamischen Drehmomentwandlers bleibt die Wandlerkupplung vorzugsweise so lange geschlossen, bis eine Annäherung an die fahrzeug- oder antriebsstrangspezifische „Brummgrenze" erreicht ist. Die Kupplung wird anschließend schrittweise von „geregelt offen" bis hin zu „offen" verstellt, bis sich der Geräuschpegel auf ein akzeptables Niveau verringert hat.In the case of a hydrodynamic torque converter the converter clutch preferably remains closed until an approximation to the vehicle or powertrain-specific "hum limit" is reached Clutch will then gradually regulated by " open "up to" open "until it changes the noise level has decreased to an acceptable level.
Wenngleich die Erfindung einleitend im Zusammenhang mit einem an ein Automatikgetriebe angeschlossenen hydrodynamischen Drehmomentwandler erläutert wurde, sei ausdrücklich darauf hingewiesen, dass die Erfindung ganz allgemein bei Kupplungen einsetzbar ist, die mit verschiedenen Getriebetypen wie zum Beispiel Handschaltgetrieben zusammenwirken.Although the invention is preliminary in connection with a connected to an automatic transmission hydrodynamic torque converter was explicitly stated noted that the invention can be used in general for couplings that work with different types of transmissions such as manual transmissions.
Zusammenfassend werden mit der Erfindung folgende Vorteile erreicht: In summary, with the invention achieved the following advantages:
- – Verbrauchseinsparung- Consumption savings
- – geringerer Applikationsaufwand als beim Stand der Technik- less Application effort than in the prior art
- – durch die Verwendung einer Schwingungs- bzw. Geräuschgröße als Führungsgröße für die Schlupfregelung werden „zugleich" Bauteiltoleranzen des Getriebes, des Antriebsstranges, Motors, Fahrzeug berücksichtigt, sowie die jeweiligen Einsatzbedingungen (Temperatur, Kraftstoffqualität, etc.) sowie Alterung und Verschleiß einzelner Fahrzeugkomponenten.- by the use of a vibration or noise quantity as a reference variable for the slip control becomes "at the same time" component tolerances the transmission, the drive train, engine, vehicle are taken into account, as well as the respective operating conditions (temperature, fuel quality, etc.) as well as aging and wear of individual Vehicle components.
Im folgenden wird die Erfindung im
Zusammenhang mit der Zeichnung näher
erläutert.
Die einzige
An ein Automatikgetriebe
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10251620A DE10251620A1 (en) | 2002-11-06 | 2002-11-06 | Control device for automatic transmission gear, comprising at least one sensor checking level of vibration for appropriate adjusting of slip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10251620A DE10251620A1 (en) | 2002-11-06 | 2002-11-06 | Control device for automatic transmission gear, comprising at least one sensor checking level of vibration for appropriate adjusting of slip |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10251620A1 true DE10251620A1 (en) | 2004-05-19 |
Family
ID=32115288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10251620A Withdrawn DE10251620A1 (en) | 2002-11-06 | 2002-11-06 | Control device for automatic transmission gear, comprising at least one sensor checking level of vibration for appropriate adjusting of slip |
Country Status (1)
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DE (1) | DE10251620A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006009608A1 (en) * | 2006-03-02 | 2007-09-06 | Zf Friedrichshafen Ag | Method for controlling or regulating gear box clutch, involves identifying situations of torque conducting clutch, which are found inconvenient by vehicle occupants and lead to damage of vehicle components |
DE102006003400B4 (en) * | 2005-01-26 | 2008-04-10 | General Motors Corp. (N.D.Ges.D. Staates Delaware), Detroit | Methods and systems for controlling noise or vibration in a vehicle |
US20110196587A1 (en) * | 2008-10-30 | 2011-08-11 | Volvo Lastvagnar Ab | device and method for automatically adjusting torque transmitting ability of a turbocompound transmission |
DE102012212868A1 (en) * | 2012-07-23 | 2014-01-23 | Bayerische Motoren Werke Aktiengesellschaft | Electronic control unit for suppression of vibration by clutch slip control in drive train of motor car, assigns predetermined amount of slip depends on amplitude of defined disturbance frequency or disturbance frequency bandwidth |
FR3029482A1 (en) * | 2014-12-08 | 2016-06-10 | Peugeot Citroen Automobiles Sa | METHOD AND APPARATUS FOR CONTROLLING THE PARAMETER (S) OF OPERATION OF A MOTORPOWER GROUP GENERATING A ACYCLICURE PRODUCING NOISE AND / OR VIBRATION |
WO2019076564A1 (en) * | 2017-10-19 | 2019-04-25 | Zf Friedrichshafen Ag | Damping arrangement for dampening rotational irregularities in a drive train of a motor vehicle and method therefor |
DE102021130440A1 (en) | 2021-11-22 | 2023-05-25 | Audi Aktiengesellschaft | Method for operating a clutch of a motor vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3624755C2 (en) * | 1986-07-22 | 1995-03-23 | Fichtel & Sachs Ag | Drive device for a motor vehicle |
DE69117099T2 (en) * | 1990-05-24 | 1996-07-04 | Borg Warner Automotive | Adaptive clutch control system for a continuously variable transmission |
-
2002
- 2002-11-06 DE DE10251620A patent/DE10251620A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3624755C2 (en) * | 1986-07-22 | 1995-03-23 | Fichtel & Sachs Ag | Drive device for a motor vehicle |
DE69117099T2 (en) * | 1990-05-24 | 1996-07-04 | Borg Warner Automotive | Adaptive clutch control system for a continuously variable transmission |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006003400B4 (en) * | 2005-01-26 | 2008-04-10 | General Motors Corp. (N.D.Ges.D. Staates Delaware), Detroit | Methods and systems for controlling noise or vibration in a vehicle |
US7509201B2 (en) | 2005-01-26 | 2009-03-24 | General Motors Corporation | Sensor feedback control for noise and vibration |
DE102006009608A1 (en) * | 2006-03-02 | 2007-09-06 | Zf Friedrichshafen Ag | Method for controlling or regulating gear box clutch, involves identifying situations of torque conducting clutch, which are found inconvenient by vehicle occupants and lead to damage of vehicle components |
US20110196587A1 (en) * | 2008-10-30 | 2011-08-11 | Volvo Lastvagnar Ab | device and method for automatically adjusting torque transmitting ability of a turbocompound transmission |
US9932890B2 (en) * | 2008-10-30 | 2018-04-03 | Volvo Lastvagnar Ab | Device and method for automatically adjusting torque transmitting ability of a turbocompound transmission |
DE102012212868A1 (en) * | 2012-07-23 | 2014-01-23 | Bayerische Motoren Werke Aktiengesellschaft | Electronic control unit for suppression of vibration by clutch slip control in drive train of motor car, assigns predetermined amount of slip depends on amplitude of defined disturbance frequency or disturbance frequency bandwidth |
FR3029482A1 (en) * | 2014-12-08 | 2016-06-10 | Peugeot Citroen Automobiles Sa | METHOD AND APPARATUS FOR CONTROLLING THE PARAMETER (S) OF OPERATION OF A MOTORPOWER GROUP GENERATING A ACYCLICURE PRODUCING NOISE AND / OR VIBRATION |
WO2019076564A1 (en) * | 2017-10-19 | 2019-04-25 | Zf Friedrichshafen Ag | Damping arrangement for dampening rotational irregularities in a drive train of a motor vehicle and method therefor |
CN111247354A (en) * | 2017-10-19 | 2020-06-05 | Zf腓特烈斯哈芬股份公司 | Damping mechanism for damping rotational irregularities in a drive train of a motor vehicle |
CN111247354B (en) * | 2017-10-19 | 2021-11-02 | Zf腓特烈斯哈芬股份公司 | Damping mechanism for damping rotational irregularities in a drive train of a motor vehicle |
DE102021130440A1 (en) | 2021-11-22 | 2023-05-25 | Audi Aktiengesellschaft | Method for operating a clutch of a motor vehicle |
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