DE3540719A1 - Device for safeguarding friction clutches against overloading - Google Patents

Device for safeguarding friction clutches against overloading

Info

Publication number
DE3540719A1
DE3540719A1 DE19853540719 DE3540719A DE3540719A1 DE 3540719 A1 DE3540719 A1 DE 3540719A1 DE 19853540719 DE19853540719 DE 19853540719 DE 3540719 A DE3540719 A DE 3540719A DE 3540719 A1 DE3540719 A1 DE 3540719A1
Authority
DE
Germany
Prior art keywords
friction
limit value
forms
alarm signal
clutch
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.)
Ceased
Application number
DE19853540719
Other languages
German (de)
Inventor
Friedrich 7996 Meckenbeuren Schreiner
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 DE3540719A1 publication Critical patent/DE3540719A1/en
Ceased 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
    • 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
    • F16D2500/10—System to be controlled
    • F16D2500/102—Actuator
    • F16D2500/1026—Hydraulic
    • 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
    • F16D2500/104—Clutch
    • F16D2500/10443—Clutch type
    • F16D2500/1045—Friction clutch
    • 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
    • F16D2500/30404—Clutch temperature
    • F16D2500/30405—Estimated clutch temperature
    • 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
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3042—Signal inputs from the clutch from the output shaft
    • F16D2500/30421—Torque of the output 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
    • F16D2500/50296—Limit clutch wear
    • 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
    • F16D2500/70424—Outputting a clutch engaged-disengaged signal
    • 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
    • F16D2500/71—Actions
    • F16D2500/7101—Driver alarm
    • 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
    • F16D2500/71—Actions
    • F16D2500/7105—Inhibit control automatically

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

A device for safeguarding friction clutches (8) against overloading determines a relative rotational speed ( DELTA N) and a torque (T), forms from these a friction power (T. DELTA N = P) and its time integral (@Pdt=Q), that is a value for friction work (Q), compares the friction work (Q) to a limiting value (QS), if required emits an alarm signal (O/L) and thereby ends a slipping process. This prevents critical temperatures in rotating friction faces even though these temperatures cannot be recorded directly. <IMAGE>

Description

Einrichtung zum Überlastschutz für Reibkupplungen Device for overload protection for friction clutches

Die Erfindung betrifft eine Einrichtung nach dem Oberbegriff des Hauptanspruchs. The invention relates to a device according to the preamble of Main claim.

Eine durch die DE-OS 31 33 834 bekannte Einrichtung dieser Art erfaßt beim Schließen einer Reibkupplung nach einer vorgebbaren Zeit eine Abtriebsdrehzahl, vergleicht diese mit einem vorgebbaren Grenzwert, bildet beim Unterschreiten des Grenzwertes ein Alarmsignal und öffnet die Reibkupplung wieder. Eine Einrichtung nach der DE-OS 31 33 834 ist einfach und kann ausreichen für nur selten benutzte Reibkupplungen. A device of this type known from DE-OS 31 33 834 is detected when closing a friction clutch after a predefinable time an output speed, compares this with a predefinable limit value, forms when the value falls below the Limit value an alarm signal and opens the friction clutch again. An institution according to DE-OS 31 33 834 is simple and can be sufficient for rarely used Friction clutches.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung nach dem Oberbegriff des Hauptanspruchs zu schaffen, die eine Reibkupplung auch bei häufiger hoher Belastung, die eine Anfahrkupplung eines Kraftfahrzeuges auch bei schwerem Rangierbetrieb vor thermischer Überlastung schützen kann. The invention has for its object to provide a device according to the Preamble of the main claim to create a friction clutch even with more frequent high load that a starting clutch of a motor vehicle even with heavy loads Can protect shunting operations from thermal overload.

Diese Aufgabe wird gelöst mit einer Einrichtung mit den Merkmalen des Hauptanspruchs. Die Erfindung umgeht die Hindernisse, die einem unmittelbaren Erfassen der kritischen Temperaturen in den umlaufenden Reibflächen der Reibkupplung im Wege stehen, und benutzt den engen physikalischen Zusammenhang zwischen diesen kritischen Temperaturen und der Reibleistung und der Reibarbeit. This object is achieved with a device with the features of the main claim. The invention bypasses the obstacles that are immediate Detection of the critical temperatures in the circumferential friction surfaces of the friction clutch stand in the way and use the close physical relationship between them critical temperatures and the frictional power and the friction work.

Eine Einrichtung nach der Erfindung berechnet diese Reibleistung und Reibarbeit aus leicht ermittelbaren physikalischen Größen, aus einer Relativdrehzahl und einem Drehmoment der Reibkupplung, vergleicht die Reibarbeit mit einem Grenzwert und beendet einen Reibvorgang, bevor eine kritische Temperatur erreicht ist. Ein öffnen einer Reibkupplung zum Schutz vor Überlast an sich ist bekannt (DE-OS 31 33 834), jedoch nicht in Verbindung mit allen Merkmalen des Hauptanspruchs.A device according to the invention calculates this friction power and Friction work from easily determinable physical quantities, from a relative speed and a torque of the friction clutch, compares the friction work with a limit value and ends a rubbing process before a critical temperature is reached. A opening a friction clutch to protect against overload is known per se (DE-OS 31 33 834), but not in connection with all features of the main claim.

Anspruch 2 nennt ein Merkmal, mit dem einem Fahrer, der eine Reibkupplung nach der Erfindung willkürlich betätigt, besonders deutlich gezeigt werden kann, wann die Reibkupplung durch thermische Überlastung gefährdet ist. Er kann dann seine Fahrweise entsprechend verbessern. Claim 2 names a feature with which a driver who has a friction clutch operated arbitrarily according to the invention, can be shown particularly clearly, when the friction clutch is at risk from thermal overload. He can then his Improve your driving style accordingly.

Anspruch 4 nennt ein Merkmal, mit dem die Einrichtung nur bei einem echten Rutschvorgang, der zu kritischen Temperaturen, zu einer thermischen Überlastung der Reibkupplung führen kann, ein Alarmsignal bildet und den Rutschvorgang beendet, nicht aber in Leerlaufzeiten. Claim 4 names a feature with which the device is only used in one real sliding process that leads to critical temperatures and thermal overload the friction clutch, generates an alarm signal and ends the slipping process, but not in idle times.

Anspruch 6 nennt ein Merkmal, mit dem auf sehr einfache Weise nach einem durch die Einrichtung selbsttätig beendeten Rutschvorgang der Reibkupplung eine ausreichende Zeit gewährt wird, um von einer überhöhten zu einer normalen Temperatur zurückzukehren. Claim 6 names a feature with which in a very simple way a slip process of the friction clutch that is automatically terminated by the device Sufficient time is allowed to go from an excessive to a normal temperature to return.

Anspruch 7, Anspruch 8 und Anspruch 9 nennen Merkmale, mit denen die jeweils mögliche Reibarbeit noch besser an die jeweilige Belastungsfähigkeit angepaßt und damit eine thermische Überlastung noch sicherer verhindert werden kann. Claim 7, Claim 8 and Claim 9 name features with which the possible friction work even better in relation to the respective load capacity adapted and thus a thermal overload can be prevented even more reliably.

Anspruch 10 nennt ein Merkmal, mit dem die notwendigen logischen Verknüpfungen und Entscheidungen besonders leicht und zuverlässig durchgeführt werden können. Claim 10 names a feature with which the necessary logical Links and decisions can be carried out particularly easily and reliably can.

In der Zeichnung ist ein Ausführungsbeispiel nach der Erfindung schematisch dargestellt. An exemplary embodiment according to the invention is shown schematically in the drawing shown.

Ein Antriebsmotor 17 treibt über eine Antriebswelle 1, ein Antriebs-Reibglied 3 und ein Abtriebs-Reibglied 4 eine Abtriebswelle 2. Drehzahlfühler 5, 6 erfassen Drehzahlen N1, N2 der Wellen 1, 2. Ein Differenzbilder 9 bildet aus den Drehzahlen N1, N2 eine Differenz N1 - N2 = dN, eine Relativdrehzahl dN. Ein Drehmomentfühler 7 erfaßt ein Drehmoment T der Reibkupplung 8. Ein Produktbilder 10 bildet aus dem Drehmoment T und der Relativdrehzahl tN ein Produkt T x AN = P, eine Reibleistung P. Ein Integrierer 11 bildet aus der Reibleistung P ein Zeitintegral #Pdt = eine Reibarbeit Q. Ein Temperaturfühler 12 erfaßt eine Temperatur der Reibkupplung 8. Ein Grenzwertbilder 13 bildet aus der Temperatur # nach einer vorgebbaren Funktion f(b) = QS einen Grenzwert QS für die Reibarbeit Q. Ein Vergleicher 14 vergleicht die Reibarbeit Q mit dem Grenzwert QS und bildet ein Alarmsignal O/L. A drive motor 17 drives a drive friction member via a drive shaft 1 3 and an output friction member 4 an output shaft 2. Speed sensors 5, 6 detect Speeds N1, N2 of the shafts 1, 2. A difference generator 9 is formed from the speeds N1, N2 a difference N1 - N2 = dN, a relative speed dN. A torque sensor 7 detects a torque T of the friction clutch 8. A product image 10 is formed from the Torque T and the relative speed tN a product T x AN = P, a frictional power P. An integrator 11 forms a time integral from the frictional power P #Pdt = a friction work Q. A temperature sensor 12 detects a temperature of the friction clutch 8. A limit value generator 13 forms from the temperature # according to a predeterminable function f (b) = QS a limit value QS for the friction work Q. A comparator 14 compares the friction work Q with the limit value QS and forms an alarm signal O / L.

Das Alarmsignal O/L bewirkt ein Schließen eines Schalters 15, ein Schalten eines Magnetventils 16 und damit ein öffnen der Reibkupplung 8.The alarm signal O / L causes a switch 15 to close Switching a solenoid valve 16 and thus opening the friction clutch 8.

Bezugszeicheli 1 Antriebswelle, Anschlußglied 2 Abtriebswelle, AnschluBglied 3 Antriebs-Reibglied 4 Abtriebs-Reibglied 5 Drehzahlfühler 6 Drehzahlfühler 7 Drehmomentfühler 8 Reibkupplung 9 Differenzbilder 10 Produktbilder 11 Integrierer 12 Temperaturfühler 13 Grenzwertbilder 14 Vergleicher 15 Schalter 16 Magnetventil 17 Antriebsmotor N1 Drehzahl N2 Drehzahl P Reibleistung PS Grenzwert PK verminderte Reibleistung Q Reibarbeit QS Grenzwert QK verminderte Reibarbeit T Drehmoment Relativdrehzahl Temperatur, Kupplungstemperatur, Kühlfluidtemperatur fPdt Zeitintegral £Pkdt Zeitintegral otL Alarmsignal Reference number 1 drive shaft, connecting member 2 output shaft, connecting member 3 Drive friction element 4 Output friction element 5 Speed sensor 6 Speed sensor 7 Torque sensor 8 Friction clutch 9 Difference images 10 Product images 11 Integrator 12 Temperature sensor 13 Limit value images 14 Comparator 15 Switch 16 Solenoid valve 17 Drive motor N1 Speed N2 Speed P Frictional power PS Limit value PK Reduced frictional power Q Friction work QS limit value QK reduced friction work T torque relative speed temperature, Clutch temperature, cooling fluid temperature fPdt time integral £ Pkdt time integral otL Alarm signal

Claims (10)

Einrichtung zum Uberlastschutz für Reibkupplungen AnsFrnc he 1. Einrichtung zum Uberlastschutz für Reibkupplungen mit Reibgliedern zur Drehmoment-Ubertragung zwischen zwei relativ drehbaren Anschlußgliedern, mit einer regelbaren Betätigungsvorrichtung, dadurch g e k e n n z e i c h n e t , daß - die Einrichtung eine Relativdrehzahl (dN) und ein Drehmoment (T) ermittelt und daraus ein Produkt (T xdN P), eine Reibleistung (P) bildet, - die Einrichtung aus der Reibleistung (P) ein Zeitintegral (jPdt = Q), eine Reibarbeit (Q) bildet, die Einrichtung die Reibarbeit (Q) mit einem vorgebbaren Grenzwert (QS) vergleicht und beim Überschreiten des Grenzwertes (QS) ein Alarmsignal (O/L) abgibt und - das Alarmsignal (O/L) ein schnelles öffnen oder Schließen der Reibkupplung (8), ein schnelles Ende eines Rutschvorganges bewirkt. Device for overload protection for friction clutches AnsFrnc he 1st device for overload protection for friction clutches with friction members for torque transmission between two relatively rotatable connecting members, with a controllable actuating device, by the fact that - the device has a relative speed (dN) and a torque (T) are determined and from this a product (T xdN P), a frictional power (P) forms, - the device from the frictional power (P) a time integral (jPdt = Q), a friction work (Q), the device forms the friction work (Q) with a specifiable Limit value (QS) compares and an alarm signal when the limit value (QS) is exceeded (O / L) emits and - the alarm signal (O / L) a rapid opening or closing of the Friction clutch (8), causes a quick end of a slip process. 2. Einrichtung nach Anspruch 1, dadurch g e k e n n -z e i c h n e t , daß das Alarmsignal (O/L) bei einem Schließen der Reibkupplung (8) zusätzlich ein Rückstellen einer Leistungssteuereinrichtung eines Antriebsmotors (17) bewirkt. 2. Device according to claim 1, characterized in that g e k e n n -z e i c h n e t that the alarm signal (O / L) when the friction clutch (8) closes in addition causes a reset of a power control device of a drive motor (17). 3. Einrichtung nach einem der vorangehenden Ansprüche, dadurch g e k e n n z e i c h n e t , daß die Einrichtung aus einzeln erfaßten Drehzahlen (Nl, N2) der beiden Anschlußglieder (1, 2) die Relativdrehzahl (N1 - N2 =dN) bildet. 3. Device according to one of the preceding claims, characterized in that g It is not noted that the device consists of individually recorded speeds (Nl, N2) of the two connecting members (1, 2) forms the relative speed (N1 - N2 = dN). 4. Einrichtung nach einem der vorangehenden Ansprüche, dadurch g e k e n n z e i c h n e t , daß die Einrichtung die Reibleistung (P) mit einem vorgebbaren Grenzwert (PS) vergleicht und nur beim Überschreiten des Grenzwertes (PS) aus der Reibleistung (P) ein Zeitintegral (fPdt = Q), eine Reibarbeit (Q) bildet. 4. Device according to one of the preceding claims, characterized in that g e k e n n n n e i c h n e t that the device the frictional power (P) with a specifiable Limit value (PS) compares and only when the limit value (PS) is exceeded from the Friction power (P) a time integral (fPdt = Q) that forms friction work (Q). 5. Einrichtung nach Anspruch 4, dadurch g e k e n n -z e i c h n e t , daß die Einrichtung aus einer um den Grenzwert (PS) verminderten Reibleistung (P - PS = PK) ein Zeitintegral (0Pkdt = QK), eine verminderte Reibarbeit (QK) bildet, diese mit dem Grenzwert (QS) vergleicht und beim Überschreiten des Grenzwertes (QS) ein Alarmsignal (O/L) bildet. 5. Device according to claim 4, characterized in that g e k e n n -z e i c h n e t that the device from a frictional power reduced by the limit value (PS) (P - PS = PK) a time integral (0Pkdt = QK), a reduced friction work (QK) forms, compares this with the limit value (QS) and if the limit value (QS) is exceeded forms an alarm signal (O / L). 6. Einrichtung nach einem der vorangehenden Ansprüche, dadurch g e k e n n z e i c h n e t , daß das Alarmsignal (O/L) erst nach einer vorgebbaren Zeit gelöscht wird. 6. Device according to one of the preceding claims, characterized in that g It is not noted that the alarm signal (O / L) only occurs after a predefinable Time is cleared. 7. Einrichtung nach einem der vorangehenden Ansprüche, dadurch g e k e n n z e i c h n e t , daß ein Temperaturfühler (12) eine Kupplungstemperatur (t) erfaßt und die Einrichtung die Kupplungstemperatur 6) bei der Vorgabe des Grenzwertes (QS) für die Reibarbeit (Q) berücksichtigt. 7. Device according to one of the preceding claims, characterized in that g e k e n n n n e i c h n e t that a temperature sensor (12) a clutch temperature (t) and the device detects the clutch temperature 6) when specifying the limit value (QS) taken into account for the friction work (Q). 8. Einrichtung nach Anspruch 7, dadurch g e k e n n -z e i c h n e t , daß der Temperaturfühler (12) eine Kühlfluidtemperatur () am Austritt aus den Reibgliedern (3, 4) erfaßt. 8. Device according to claim 7, characterized in that g e k e n n -z e i c h n e t that the temperature sensor (12) has a cooling fluid temperature () at the outlet the friction members (3, 4) detected. 9. Einrichtung nach Anspruch 10 oder 11, dadurch g e -k e n n z e i c h n e t , daß die Einrichtung beim Uberschreiten einer vorgebbaren Kupplungstemperatur () ein Warnsignal ausgibt und ein Schließen der Reibkupplung (8) verhindert. 9. Device according to claim 10 or 11, characterized in that g e -k e n n z e i c h n e t that the device when a predeterminable clutch temperature is exceeded () issues a warning signal and prevents the friction clutch (8) from closing. 10. Einrichtung nach einem der vorangehenden Ansprüche, dadurch g e k e n n z e i c h n e t , daß ein Mikroprozessor verwendet wird. 10. Device according to one of the preceding claims, characterized in that g It is not noted that a microprocessor is used.
DE19853540719 1984-12-01 1985-11-16 Device for safeguarding friction clutches against overloading Ceased DE3540719A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP8400384 1984-12-01

Publications (1)

Publication Number Publication Date
DE3540719A1 true DE3540719A1 (en) 1986-06-05

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DE19853540719 Ceased DE3540719A1 (en) 1984-12-01 1985-11-16 Device for safeguarding friction clutches against overloading

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593287A1 (en) * 1986-01-22 1987-07-24 Sachs Systemtechnik Gmbh Device for monitoring a friction clutch, more particularly on a motor vehicle
DE3702352A1 (en) * 1986-01-30 1987-08-06 Mazda Motor DRIVE SYSTEM FOR A FOUR-WHEEL DRIVE OF VEHICLES
FR2635585A1 (en) * 1988-08-18 1990-02-23 Fichtel & Sachs Ag DEVICE FOR CONTROLLING A FRICTION CLUTCH
FR2643539A1 (en) * 1989-02-27 1990-08-31 Walterscheid Gmbh Jean METHOD AND DEVICE FOR MEASURING AND DISPLAYING STATES OF LOAD IN KINEMATIC DRIVE CHAINS OF AGRICULTURAL APPLIANCES
EP0493840A2 (en) * 1991-01-04 1992-07-08 Fichtel &amp; Sachs AG Monitoring arrangement for friction clutch
DE4101610C1 (en) * 1991-01-21 1992-08-06 Steyr-Daimler-Puch Ag, Wien, At
DE4124722A1 (en) * 1991-07-25 1993-01-28 Steyr Daimler Puch Ag Thermal overload protective device for friction clutch - includes slip and frictional power calculators and logic for temp. comparison with threshold and warning levels
DE19639296C1 (en) * 1996-09-25 1998-04-02 Daimler Benz Ag Drive clutch for motor vehicle
DE19841917A1 (en) * 1998-09-14 1999-12-16 Mannesmann Sachs Ag Drive system for motor vehicles
FR2795469A1 (en) * 1999-06-24 2000-12-29 Luk Lamellen & Kupplungsbau Electronically-controlled automobile clutch incorporates creep function which is selectively inhibited by sensor signal
GB2364556A (en) * 1999-09-09 2002-01-30 Walterscheid Gmbh Gkn A method of controlling a friction coupling so that a warning signal is generated
US6497620B1 (en) 1999-09-09 2002-12-24 Gkn Walterscheid Gmbh Coupling assembly for agricultural implements
WO2006100399A1 (en) * 2005-03-25 2006-09-28 Renault S.A.S. Slip control method for a wet clutch system
EP2136099A1 (en) * 2007-10-30 2009-12-23 Mitsubishi Heavy Industries, Ltd. Alarm of clutch device
CN101270788B (en) * 2007-03-20 2011-05-11 大众汽车有限公司 Method and apparatus for monitoring thermal load of vehicle clutch
EP1692477B2 (en) † 2003-12-13 2011-10-12 GKN Driveline International GmbH Method for determining the disc temperature of a multi-disc clutch
EP2431714A1 (en) * 2010-09-21 2012-03-21 Zero-Max Holding DK A/S Slip measurement assembly
DE102013204667A1 (en) * 2013-03-18 2014-09-18 Zf Friedrichshafen Ag Method for carrying out a reversing circuit
DE102013204666A1 (en) * 2013-03-18 2014-09-18 Zf Friedrichshafen Ag Method for performing a gearshift
DE102020105592A1 (en) 2020-03-03 2021-09-09 Audi Aktiengesellschaft Method for operating a hybrid drive device for a motor vehicle and a corresponding hybrid drive device

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DE3043347A1 (en) * 1980-11-17 1982-07-01 Sachs Systemtechnik Gmbh, 8720 Schweinfurt Motor-vehicle friction clutch operating mechanism - has program control responsive to engine speed to control engaging characteristic using function generator ROM
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Cited By (27)

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FR2593287A1 (en) * 1986-01-22 1987-07-24 Sachs Systemtechnik Gmbh Device for monitoring a friction clutch, more particularly on a motor vehicle
DE3702352A1 (en) * 1986-01-30 1987-08-06 Mazda Motor DRIVE SYSTEM FOR A FOUR-WHEEL DRIVE OF VEHICLES
FR2635585A1 (en) * 1988-08-18 1990-02-23 Fichtel & Sachs Ag DEVICE FOR CONTROLLING A FRICTION CLUTCH
FR2643539A1 (en) * 1989-02-27 1990-08-31 Walterscheid Gmbh Jean METHOD AND DEVICE FOR MEASURING AND DISPLAYING STATES OF LOAD IN KINEMATIC DRIVE CHAINS OF AGRICULTURAL APPLIANCES
EP0493840A2 (en) * 1991-01-04 1992-07-08 Fichtel &amp; Sachs AG Monitoring arrangement for friction clutch
EP0493840A3 (en) * 1991-01-04 1994-03-23 Fichtel & Sachs Ag
DE4101610C1 (en) * 1991-01-21 1992-08-06 Steyr-Daimler-Puch Ag, Wien, At
DE4124722A1 (en) * 1991-07-25 1993-01-28 Steyr Daimler Puch Ag Thermal overload protective device for friction clutch - includes slip and frictional power calculators and logic for temp. comparison with threshold and warning levels
DE19639296C1 (en) * 1996-09-25 1998-04-02 Daimler Benz Ag Drive clutch for motor vehicle
DE19841917A1 (en) * 1998-09-14 1999-12-16 Mannesmann Sachs Ag Drive system for motor vehicles
FR2795469A1 (en) * 1999-06-24 2000-12-29 Luk Lamellen & Kupplungsbau Electronically-controlled automobile clutch incorporates creep function which is selectively inhibited by sensor signal
WO2001001007A1 (en) * 1999-06-24 2001-01-04 Luk Lamellen Und Kupplunsbau Gmbh Clutch device
GB2364556A (en) * 1999-09-09 2002-01-30 Walterscheid Gmbh Gkn A method of controlling a friction coupling so that a warning signal is generated
GB2364556B (en) * 1999-09-09 2002-12-18 Walterscheid Gmbh Gkn Control of friction coupling for agricultural implements
US6497620B1 (en) 1999-09-09 2002-12-24 Gkn Walterscheid Gmbh Coupling assembly for agricultural implements
EP1692477B2 (en) † 2003-12-13 2011-10-12 GKN Driveline International GmbH Method for determining the disc temperature of a multi-disc clutch
FR2883609A1 (en) * 2005-03-25 2006-09-29 Renault Sas METHOD FOR CONTROLLING THE SLIDING OF A WET CLUTCH SYSTEM
WO2006100399A1 (en) * 2005-03-25 2006-09-28 Renault S.A.S. Slip control method for a wet clutch system
CN101270788B (en) * 2007-03-20 2011-05-11 大众汽车有限公司 Method and apparatus for monitoring thermal load of vehicle clutch
EP2136099A1 (en) * 2007-10-30 2009-12-23 Mitsubishi Heavy Industries, Ltd. Alarm of clutch device
EP2136099A4 (en) * 2007-10-30 2011-12-07 Mitsubishi Heavy Ind Ltd Alarm of clutch device
US8405497B2 (en) 2007-10-30 2013-03-26 Mitsubishi Heavy Industries, Ltd. Alarm device for clutch
EP2431714A1 (en) * 2010-09-21 2012-03-21 Zero-Max Holding DK A/S Slip measurement assembly
DE102013204667A1 (en) * 2013-03-18 2014-09-18 Zf Friedrichshafen Ag Method for carrying out a reversing circuit
DE102013204666A1 (en) * 2013-03-18 2014-09-18 Zf Friedrichshafen Ag Method for performing a gearshift
DE102020105592A1 (en) 2020-03-03 2021-09-09 Audi Aktiengesellschaft Method for operating a hybrid drive device for a motor vehicle and a corresponding hybrid drive device
US11745725B2 (en) 2020-03-03 2023-09-05 Audi Ag Method for operating a hybrid drive assembly for a motor vehicle and corresponding hybrid drive assembly

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