WO2003104628A1 - Dispositif tendeur - Google Patents

Dispositif tendeur Download PDF

Info

Publication number
WO2003104628A1
WO2003104628A1 PCT/EP2003/005138 EP0305138W WO03104628A1 WO 2003104628 A1 WO2003104628 A1 WO 2003104628A1 EP 0305138 W EP0305138 W EP 0305138W WO 03104628 A1 WO03104628 A1 WO 03104628A1
Authority
WO
WIPO (PCT)
Prior art keywords
actuator
clamping device
traction
support body
internal combustion
Prior art date
Application number
PCT/EP2003/005138
Other languages
German (de)
English (en)
Inventor
Ulrich Grau
Frank Himsel
Michael Bogner
Thomas Kraft
Rudolf Berger
Gerhard Maas
Original Assignee
Ina-Schaeffler Kg
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 Ina-Schaeffler Kg filed Critical Ina-Schaeffler Kg
Priority to AU2003236661A priority Critical patent/AU2003236661A1/en
Priority to EP03735398A priority patent/EP1511925A1/fr
Publication of WO2003104628A1 publication Critical patent/WO2003104628A1/fr

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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0823—Electric actuators

Definitions

  • the present invention relates to a tensioning device for a traction mechanism drive, with which various units, such as the water pump, the starter generator, the injection pump or an air conditioning compressor, are driven starting from the crankshaft of the internal combustion engine.
  • the tensioning device comprises a support body which is arranged pivotably about an axis of rotation.
  • a rotatable tensioning roller is positioned on the support body and is supported directly on the traction means, in particular a belt.
  • the individual units of the internal combustion engine such as, for example, water pump, air conditioning compressor, starter generator, power steering pump, are driven starting from the crankshaft or its pulleys.
  • the traction means in particular a belt, connects from the pulley of the crankshaft, all other pulleys including the traction mechanism drive of individual units.
  • the tensioning device has the task of automatically ensuring the pretensioning of the traction device as constant as possible.
  • Traction drive which also include the drive of a starter generator, require regardless of the operating mode of the internal combustion engine, i. H. An effective pre-tensioning force of the traction device both for the starting process and when the internal combustion engine is running.
  • the starter generator which works as an electric motor, takes over the function of the traction drive.
  • generator operation of the starter generator sets in, which supplies the electrical system of the motor vehicle with electrical energy.
  • a torque is introduced into the traction means by the starter generator or the internal combustion engine. Consequently, between the operating mode there is a change of the empty run and the pull run or a change of the torque direction in the traction means run between the pulleys of the crankshaft and the starter generator.
  • a traction mechanism drive is known from the patent JP 105 9555 A, which includes the drive of a starter generator.
  • the known traction mechanism drive comprises two automatically acting tensioning devices.
  • a first tensioning device is supported with a tensioning roller on the traction means strand between the pulleys of the crankshaft and the starter generator.
  • the tensioning roller of the second tensioning device is supported on the traction means strand in a section downstream of the starter generator.
  • the structure provides that the first tensioning device can be blocked in the start mode in order to achieve a pretensioned traction means between the starter generator and the pulley of the crankshaft.
  • the double arrangement of the clamping devices requires an increased installation space, which is not available in particular in small-volume internal combustion engines. Furthermore, the double arrangement of clamping devices increases the costs and the installation effort and thus largely compensates for the savings effect of the starter generator, which combines the generator and starter units.
  • the object of the invention is to always take into account the disadvantages of the known solution with only one tensioning device, regardless of the operating mode of the internal combustion engine, to ensure an optimal pre-tensioning force of the traction means.
  • a tensioning device is provided according to the invention according to claim 1, which comprises a support body which is pivotable about an axis of rotation.
  • a roller-mounted tensioning roller is positioned on the support body.
  • the adjustment of the tensioning device in order to influence the pretensioning force of the traction device is carried out exclusively via an electronic actuator.
  • the actuator is spaced from the axis of rotation of the clamping device, articulated on the supporting body and ensures an exact adjustment of the clamping device.
  • a method is provided to solve the problem, in which a support body provided for receiving the tensioning roller takes place as a function of at least one operating parameter of the traction means and / or the internal combustion engine.
  • a controllable actuator is preferably a linear actuator, which can also be referred to as an actuator.
  • a preferred construction of the actuator comprises an electrically driven threaded spindle or alternatively a ball screw
  • the invention further includes a hydraulically or pneumatically acting actuator.
  • the tensioning device can be adjusted by means of an electro-magnetic or an electro-hydraulic actuator
  • a further advantageous arrangement according to the invention comprises a joint or an intermediate element which is inserted between the actuator or the actuator and the supporting body of the tensioning device.
  • This measure enables a power transmission or a relocated arrangement of the actuator from the tensioning device, which is suitable, for example, for narrow installation spaces of the traction mechanism drive.
  • the construction of the tensioning device according to the invention can include a toggle lever which connects the actuator, in particular a threaded spindle to the supporting body of the tensioning device.
  • a stop is preferably assigned to the toggle lever in order to achieve a defined end position.
  • the toggle lever serves to relieve the electric motor the toggle lever is used for smaller sized internal combustion engines
  • an electric motor is advantageously used, which carries out the adjustment of the tensioning device, i.e. the supporting body and the tensioning roller.
  • the invention includes a force-dependent control or activation of the actuator or the actuator.
  • a force measuring roller connected to the traction means is suitable
  • a further embodiment of the invention provides that the control or activation of the actuator takes place as a function of at least one operating parameter of the traction mechanism drive.
  • the electronically controlled actuator can According to the invention in connection with suitable control electronics of the internal combustion engine or a motor management, the tensioning device can be adjusted, for example, depending on the generator power, the pretensioning force of the traction means, the direction of action of the torque in the traction means or the speed of a pulley of the traction means drive, by the pretensioning force of the traction means to influence
  • a largely constant pretension of the traction means can be achieved according to the invention in that a holding current or a restoring torque of the electric motor used for activating the actuator is continuously recorded and, depending on these operating parameters, the effective range of the electronically controlled actuator is changed
  • the electronically controlled or electronically controllable actuator enables a constant pre-tensioning of the traction means, regardless of whether the traction means is elongated due to wear, for example.
  • an optimum between the lowest wear and high power transmission between the traction means and the units to be driven can be achieved
  • the traction element preload can be set continuously, for example between an operating position and a neutral position, with the electronically controlled actuator
  • the electronically controlled actuator which is preferably connected to control electronics of the internal combustion engine, enables the tensioning device to be pivoted, for example, in the starting mode of the internal combustion engine, into a position that increases the pretensioning force of the traction means to avoid slippage of the crankshaft and thus start deceleration.
  • the tensioning device according to the invention is therefore preferably arranged between the pulleys of the crankshaft and the starter generator.
  • the electronically controlled actuator according to the invention further enables the support body and consequently the tensioning pulley connected to it to pivot automatically into a position corresponding to the starting position when the internal combustion engine is at a standstill.
  • control electronics can be designed such that, in the starting phase, synchronously with the starting process of the internal combustion engine, the electronically controlled actuator pivots the supporting body and the tensioning roller connected therewith into the corresponding starting position.
  • Figure 1 shows the schematic structure of a traction drive, provided with a tensioning device according to the invention
  • Figure 2 shows an enlarged view of the invention
  • FIG. 1 shows a traction mechanism drive 1, which is designed as a so-called unit drive and is provided for driving various units of an internal combustion engine.
  • a traction means 2 preferably a belt or a toothed belt, connects the pulleys of the individual units.
  • the traction mechanism drive 1 is driven by the crankshaft 3 or its pulley, the traction mechanism 2 enclosing the pulleys of the air conditioning compressor 4, the water pump 5, the power steering pump 6 and the starter generator 7.
  • a clamping device 8a is assigned to the traction means 2 between the starter generator 7 and the crankshaft 3.
  • the tensioning device 8a comprises a support body 9a, on which a tensioning roller 10 is rotatably arranged, which is supported directly on the traction means 2.
  • the support body 9a can be pivoted about an axis of rotation 11, which is preferably on a crankcase of the internal combustion engine (not shown in FIG. 1)
  • the tensioning device 8a is adjusted exclusively via an actuator 12a.
  • an electronically controlled or electronically controllable actuator 12a which can also be referred to as an actuator, is provided.
  • FIG. 1 shows a linearly acting actuator 12a provided with a Threaded spindle 13, which is driven by an electric motor 14.
  • the adjusting nut 15, which can be displaced linearly on the threaded spindle 13, is connected to the supporting body 9a via an articulated intermediate member 16.
  • a link 17 serves for this purpose, which is on the respective end sides of the supporting body 9a and Lock nut 15 is articulated
  • a linear movement of the adjusting nut 15, indicated by the double arrow, causes the tensioning device 8a to pivot about the axis of rotation 11, as a result of which the pretensioning force of the traction means 2 is influenced
  • the electric motor 14 is advantageously coupled to the motor controller 18, so that, for example, depending on the operating mode, ie between the starting phase and the running internal combustion engine, the pretensioning force of the traction means can be influenced.
  • the adjustment of the actuator 12a can also be dependent on at least one parameter of the Traction drive 1 are influenced for this purpose, an electronic system 19 is provided, which interacts, for example, with a sensor 20 integrated in the starter generator 7 or assigned to the starter generator 7 Influencing the pre-tension of the traction device 2 as a function of predetermined limit values.
  • the electronic system 19 can also be supplemented with additional sensors with which the traction device Force or the speed of a pulley can be monitored to always ensure an optimal preload of the traction device 2.
  • a torque from the crankshaft 3 or the starter generator 7 is introduced into the traction means 2 via the associated pulleys. This is associated with a change in the empty run and the pull run or the torque direction in the traction means run between the starter generator 7 and the crankshaft 3.
  • the tensioning device 8a is shifted via the actuator 12a into a position which increases the pretensioning force of the traction means 2 in order to achieve a delay-free start of the internal combustion engine, i. H.
  • the starting position illustrates the position of the tensioning roller 10 shown in dotted lines.
  • the actuator 12a is actuated in such a way that it displaces the tensioning device 8a into a position reducing the pretensioning force of the traction means 2.
  • FIG. 2 shows details of the traction mechanism drive 1 on an enlarged scale.
  • the tensioning device 8b shows a support body 9b, the axis of rotation 11 of which is arranged at a greater distance from the articulation point of the actuator 12b, in comparison to the tensioning device 8a according to FIG To change the pre-tensioning force of the traction device.
  • the actuator 12b is arranged between the pulley of the crankshaft 3 and the starter generator 7 in an optimized space.
  • the adjusting nut 15 of the actuator 12b also forms a joint 21 directly with the support body 9b.
  • the formation and arrangement of the actuator 12b is particularly suitable for small-volume internal combustion engines in which the available space is limited. reference numerals
  • Starter generator a tensioning device b tensioning device a supporting body b supporting body 0 tensioning roller 1 axis of rotation 2a actuator 2b actuator 3 threaded spindle 4 electric motor 5 adjusting nut 6 intermediate link 7 bracket 8 motor control 9 electronic system 0 sensor 1 joint

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

L'invention concerne un dispositif tendeur (8a) destiné à une transmission (1) par moyen de traction, cette transmission comprenant l'entraînement d'un démarreur-alternateur (7). Selon l'invention, le réglage du dispositif tendeur (8a) est effectué exclusivement par l'intermédiaire d'un organe de réglage (12a) à régulation électronique.
PCT/EP2003/005138 2002-06-07 2003-05-16 Dispositif tendeur WO2003104628A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003236661A AU2003236661A1 (en) 2002-06-07 2003-05-16 Tensing device
EP03735398A EP1511925A1 (fr) 2002-06-07 2003-05-16 Dispositif tendeur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10225268.8 2002-06-07
DE2002125268 DE10225268A1 (de) 2002-06-07 2002-06-07 Spannvorrichtung

Publications (1)

Publication Number Publication Date
WO2003104628A1 true WO2003104628A1 (fr) 2003-12-18

Family

ID=29557620

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/005138 WO2003104628A1 (fr) 2002-06-07 2003-05-16 Dispositif tendeur

Country Status (4)

Country Link
EP (1) EP1511925A1 (fr)
AU (1) AU2003236661A1 (fr)
DE (1) DE10225268A1 (fr)
WO (1) WO2003104628A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004101974A1 (fr) * 2003-05-19 2004-11-25 Siemens Aktiengesellschaft Entrainement par courroie dans la chaine cinematique d'une automobile et procede pour assurer la commande d'un tel entrainement par courroie
FR2885979A1 (fr) * 2005-05-20 2006-11-24 Renault Sas Dispositif de pilotage de la tension d'une courroie de demarreur et demarreur a courroie incorporant un tel dispositif
US9464697B2 (en) 2011-09-05 2016-10-11 Litens Automotive Partnership Intelligent belt drive system and method
US9638293B2 (en) 2013-10-31 2017-05-02 GM Global Technology Operations LLC Variable belt tensioner for an internal combustion engine
CN106763586A (zh) * 2016-12-12 2017-05-31 江阴职业技术学院 发动机附件轮系涨紧自调整装置
US9989129B2 (en) 2011-05-13 2018-06-05 Litens Automotive Partnership Intelligent belt drive system and method

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Publication number Priority date Publication date Assignee Title
DE10337586A1 (de) * 2003-08-16 2005-03-10 Ina Schaeffler Kg Spannvorrichtung
DE10344670A1 (de) * 2003-09-25 2005-04-14 Ina-Schaeffler Kg Vorrichtung zur schwenkbaren Lagerung eines Antriebsorgans
CA2551514C (fr) 2003-12-24 2013-11-19 Barrett Technology, Inc. Mecanisme de pre-tension automatique destine a des entrainements d'elements de tension
FR2865583B1 (fr) * 2004-01-23 2006-03-31 Peugeot Citroen Automobiles Sa Dispositif de solidarisation d'une machine tournante sur un moteur de vehicule.
JP2005220945A (ja) * 2004-02-03 2005-08-18 Mitsubishi Fuso Truck & Bus Corp エンジンのベルト張力調整装置
DE102004037262A1 (de) * 2004-07-31 2006-02-16 Ina-Schaeffler Kg Zugmitteltrieb
DE102005001800A1 (de) * 2005-01-14 2006-08-17 Schaeffler Kg Positionierung einer Umlenkrolle bei Zugmitteltrieb mit riemengetriebenem Startergenerator
DE102007055547A1 (de) 2007-11-21 2009-05-28 Schaeffler Kg Riemenspannvorrichtung
DE102009045880A1 (de) * 2009-10-21 2011-11-17 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben eines Riementriebs eines Kraftfahrzeugs
DE102010044864A1 (de) * 2010-09-09 2012-03-15 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Steuerung einer variierbaren Spanneinrichtung für einen Keilrippenriemen eines Kraftfahrzeugantriebs
WO2012031361A1 (fr) 2010-09-10 2012-03-15 Litens Automotive Partnership Système intelligent d'entraînement par courroie, et procédé associé
US9447850B2 (en) 2012-04-28 2016-09-20 Litens Automotive Partnership Adjustable tensioner
DE102012019038A1 (de) * 2012-09-27 2014-03-27 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Generator zur Erzeugung von elektrischem Strom in einem Kraftfahrzeug und Kraftfahrzeug
DE102012218455B4 (de) * 2012-10-10 2024-05-29 Bayerische Motoren Werke Aktiengesellschaft Riementrieb mit variabler Vorspannkraft
DE102017214067A1 (de) 2017-08-11 2019-02-14 Volkswagen Aktiengesellschaft Verfahren und Steuergerät zum Betreiben eines Riementriebs und Vorrichtung zum Bestimmen einer Riemenvorspannung

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DE10000970A1 (de) * 2000-01-12 2001-09-06 Litens Automotive Gmbh Spannvorrichtung für ein biegsames Antriebselement
WO2002029287A2 (fr) * 2000-10-03 2002-04-11 The Gates Corporation Systeme d'entrainement d'accessoires a moteur/generateur
FR2816023A1 (fr) * 2000-10-31 2002-05-03 Mitsubishi Electric Corp Dispositif de tranmission par courroie possedant un dispositif de reglage de tension

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DE10118277A1 (de) * 2001-04-12 2002-10-17 Bayerische Motoren Werke Ag Vorrichtung zum Spannen eines Antriebsriemens an einer Brennkraftmaschine

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Publication number Priority date Publication date Assignee Title
DE10000970A1 (de) * 2000-01-12 2001-09-06 Litens Automotive Gmbh Spannvorrichtung für ein biegsames Antriebselement
WO2002029287A2 (fr) * 2000-10-03 2002-04-11 The Gates Corporation Systeme d'entrainement d'accessoires a moteur/generateur
FR2816023A1 (fr) * 2000-10-31 2002-05-03 Mitsubishi Electric Corp Dispositif de tranmission par courroie possedant un dispositif de reglage de tension

Non-Patent Citations (1)

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See also references of EP1511925A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004101974A1 (fr) * 2003-05-19 2004-11-25 Siemens Aktiengesellschaft Entrainement par courroie dans la chaine cinematique d'une automobile et procede pour assurer la commande d'un tel entrainement par courroie
FR2885979A1 (fr) * 2005-05-20 2006-11-24 Renault Sas Dispositif de pilotage de la tension d'une courroie de demarreur et demarreur a courroie incorporant un tel dispositif
US9989129B2 (en) 2011-05-13 2018-06-05 Litens Automotive Partnership Intelligent belt drive system and method
US9464697B2 (en) 2011-09-05 2016-10-11 Litens Automotive Partnership Intelligent belt drive system and method
US9638293B2 (en) 2013-10-31 2017-05-02 GM Global Technology Operations LLC Variable belt tensioner for an internal combustion engine
CN106763586A (zh) * 2016-12-12 2017-05-31 江阴职业技术学院 发动机附件轮系涨紧自调整装置

Also Published As

Publication number Publication date
EP1511925A1 (fr) 2005-03-09
AU2003236661A1 (en) 2003-12-22
DE10225268A1 (de) 2003-12-18

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