EP3102843A1 - Amortisseur de vibrations torsionnelles - Google Patents

Amortisseur de vibrations torsionnelles

Info

Publication number
EP3102843A1
EP3102843A1 EP15709826.0A EP15709826A EP3102843A1 EP 3102843 A1 EP3102843 A1 EP 3102843A1 EP 15709826 A EP15709826 A EP 15709826A EP 3102843 A1 EP3102843 A1 EP 3102843A1
Authority
EP
European Patent Office
Prior art keywords
vibration damper
torsional vibration
pendulum mass
pendulum
natural frequency
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Withdrawn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
EP15709826.0A
Other languages
German (de)
English (en)
Inventor
Jean-Philippe Brua
Mikhail Gvozdev
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co 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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3102843A1 publication Critical patent/EP3102843A1/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Withdrawn legal-status Critical Current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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/1464—Masses connected to driveline by a kinematic mechanism or gear system
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • F16F15/31—Flywheels characterised by means for varying the moment of inertia
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range

Definitions

  • the invention relates to a torsional vibration damper, in particular two-mass flywheel, comprising an input part and an output part with a common axis of rotation about which the input part and the output part rotatable together and rotatable relative to each other are limited, effective between the input part and the output part spring-damper device at least one energy storage and a centrifugal pendulum device with at least one displaceable under centrifugal force first pendulum mass.
  • a motor vehicle is known with a drive train, with an internal combustion engine and a downstream transmission, wherein arranged between a crankshaft of the internal combustion engine and an input shaft of the transmission, a split flywheel with at least two against each other against the action of an energy storage device relatively rotatable masses is and at least one of the masses with crankshaft and at least one mass with an input shaft of the transmission with the interposition of a friction clutch is connectable.
  • the invention has for its object to improve a torsional vibration damper mentioned structurally and / or functionally.
  • an adaptation to vibrations with two different orders should be made possible.
  • an adaptation to internal combustion engine operating modes with different numbers of cylinders should be made possible.
  • an effective damping of torsional vibrations of an internal combustion engine with cylinder deactivation should be made possible.
  • a dual-mass flywheel comprising an input part and an output part with a common axis of rotation about which the input part and the output part are rotatable together and are relatively limited to one another rotatable, an effective between the input part and the output part spring-damper device with at least one energy storage and a centrifugal pendulum device with at least one movable under centrifugal force first pendulum mass, wherein the centrifugal pendulum device is automatically switching between a first natural frequency and a second natural frequency ,
  • the torsional vibration damper can be arranged in a drive train of a
  • the drive train may include an internal combustion engine.
  • the internal combustion engine may have a plurality of cylinders. The cylinders can be partially switched off.
  • the internal combustion engine may be operable in a first mode in which all cylinders are turned on.
  • the internal combustion engine may be operable in a second mode in which a portion of the cylinders is turned off.
  • the drive train may have a friction clutch.
  • the drive train may have a transmission.
  • the drive train may have at least one drivable wheel.
  • the torsional vibration damper can serve for the arrangement between the internal combustion engine and the friction clutch.
  • the torsional vibration damper can serve to reduce torsional vibrations, which are excited by periodic processes, in particular in the internal combustion engine.
  • the input part can serve for driving connection with the internal combustion engine.
  • the output part can serve for driving connection with the friction clutch.
  • the terms "input part” and “output part” refer to a power flow direction emanating from the internal combustion engine.
  • the at least one energy store can be supported on the one hand on the input part and on the other hand on the output part.
  • the at least one energy store can have at least one spring.
  • the at least one spring may be a compression spring.
  • the spring may be at least one coil spring.
  • the at least one spring may be a bow spring.
  • the input part may have a flange portion.
  • the input part may have a lid portion.
  • the flange portion and the lid portion may limit a receiving space for the at least one energy storage.
  • the output part may have a flange part.
  • the output part may have a flywheel part.
  • the spring-damper device may comprise a friction device.
  • the centrifugal pendulum device may be arranged on the output part.
  • the centrifugal pendulum device may have a pendulum mass carrier part.
  • the pendulum mass carrier part can be fixedly arranged on the output part.
  • the at least one first pendulum mass can be arranged eccentrically to the axis of rotation.
  • the at least one first pendulum mass can be displaceable between a first end position and a second end position.
  • the at least one first pendulum mass may have an arcuate shape.
  • the at least one first pendulum mass can be mounted on the pendulum mass carrier part by means of spherical rollers.
  • the at least one first pendulum mass may have recesses for receiving the spherical rollers.
  • the pendulum mass carrier part may have recesses for receiving the spherical rollers.
  • the recesses of the at least one first pendulum mass and / or the pendulum mass carrier part can each have a kidney-like shape.
  • the at least one first pendulum mass may be in one piece.
  • the at least one first pendulum mass may be in two parts.
  • the parts of the at least one first pendulum mass can be arranged on both sides of the pendulum mass carrier part.
  • the centrifugal pendulum device may have at least one intermediate part.
  • the at least one first pendulum mass may be arranged with the interposition of the at least one intermediate part on the pendulum mass carrier part.
  • the centrifugal pendulum device may have a switching device for switching the natural frequency. With the aid of the switching device, a displaceability of the at least one intermediate part relative to the pendulum mass carrier part can be blocked and / or released.
  • the switching device may have at least one second pendulum mass.
  • the at least one first pendulum mass may be displaceable with a first thread length assigned to the first natural frequency or a second thread length assigned to the second natural frequency.
  • the switching device can at least one
  • the blocking device can be activated / deactivated locking device for changing the thread length.
  • a displaceability of the at least one intermediate part relative to the pendulum mass carrier part can be blocked.
  • the locking device is activated, the first thread length can be effective.
  • a displaceability of the at least one intermediate part relative to the pendulum mass carrier part can be released.
  • the second thread length can be effective.
  • the first thread length may be less than the second thread length.
  • the second thread length may be greater than the first thread length.
  • the second thread length can be twice as long as the first thread length.
  • the at least one locking device can be actuated by means of the at least one second pendulum mass.
  • the at least one locking device may be located in an unactuated preferential Be activated position.
  • the at least one barrier means may require actuation to deactivate.
  • the at least one locking device may have a spring-loaded pawl.
  • the at least one locking device may comprise a spring device.
  • the at least one locking device may comprise a ratchet wheel.
  • the at least one locking device may be activated at a below a predetermined value amplitude of the at least one second pendulum mass.
  • the at least one locking device may be deactivated at an amplitude exceeding the predetermined value of the at least one second pendulum mass.
  • the at least one second pendulum mass can be tuned to the second natural frequency.
  • the first natural frequency can be used to eradicate torsional vibrations of a main order.
  • the second natural frequency can be used to eradicate torsional vibrations of a partial order.
  • the partial order can be a partial order.
  • Torsional vibrations of the main order can be second-order torsional vibrations.
  • Torsional vibrations of the partial order can be torsional vibrations of the first order.
  • the invention thus provides inter alia a use of a sensor centrifugal pendulum for setting a switchable centrifugal pendulum in applications with cylinder deactivation. It can be used a sensor centrifugal pendulum whose function can be a detection of a currently operating engine order.
  • the centrifugal pendulum can be divided into two thread lengths. In a half-order, the two threads can swing at the same time. In a full order of a threads may be blocked by a friction device, so that only one of the center furthest removed bridge can swing.
  • the sensor centrifugal pendulum may serve to activate or deactivate the friction device, depending on the cylinder operation.
  • the sensor centrifugal pendulum can be tuned to the half order. Thus, it can make a large swing angle at cylinder deactivation. This large swing angle can be used to solve a locking mechanism. A damping element may attempt to drive the mechanism back to its locked position. If no cylinders are shut down, the sensor centrifugal pendulum can not make a large swing angle. Thus, the locking mechanism can remain in its locked position.
  • torsional vibration damper according to the invention an adaptation to vibrations with two different orders is possible.
  • An adaptation to engine operating modes with different number of cylinders is possible.
  • An effective damping of torsional vibrations of an internal combustion engine with cylinder deactivation is possible.
  • Fig. 3 shows a structural design of a self-switching between two natural frequencies centrifugal pendulum device
  • Fig. 4 shows a structural design of a self-switching between two natural frequencies centrifugal pendulum device in exploded view.
  • Fig. 1 shows a self-switching between two natural frequencies centrifugal pendulum device 100 in a full-length operation /.
  • the centrifugal pendulum device 100 is used for arrangement in a drive train of an internal combustion engine-driven motor vehicle.
  • the centrifugal pendulum device 100 is used for arrangement on a torsional vibration damper, in particular on a dual-mass flywheel, in particular on an output part of a torsional vibration damper.
  • the centrifugal pendulum device 100 serves to reduce periodic rotational irregularities of the internal combustion engine.
  • the centrifugal pendulum device 100 is for use with an internal combustion engine with cylinder deactivation.
  • the internal combustion engine is operable with full number of cylinders or with fewer cylinders.
  • the internal combustion engine has four cylinders, of which two cylinders can be switched off, so that the internal combustion engine can be operated either as a four-cylinder internal combustion engine or as a two-cylinder internal combustion engine.
  • the centrifugal pendulum device 100 is operable at a first natural frequency or at a second natural frequency. An operation of the centrifugal pendulum device 100 with the first natural frequency is used to reduce torsional vibrations in an operation of the internal combustion engine with full number of cylinders. An operation of the centrifugal pendulum device 100 with the second natural frequency is used to reduce torsional vibrations in an operation of the internal combustion engine with fewer cylinders.
  • the centrifugal pendulum device 100 has a first pendulum mass 102 which under
  • the centrifugal pendulum device 100 has a switching device 104.
  • the switching device 104 has a ratchet wheel 106, a pawl 108 and a spring 1 10.
  • the spring 1 10 acts on the pawl 108 in the direction of engagement with the ratchet wheel 108 back.
  • the centrifugal pendulum device 100 has a second pendulum mass 1 12, which can also oscillate between a first end position and a second end position.
  • the second pendulum mass 1 12 is tuned to the second natural frequency.
  • the pendulum mass 1 12 oscillates the second pendulum mass 1 12 in its resonance range with a predetermined value exceeding amplitude, so that the second pendulum mass 1 12 reaches the pawl 108.
  • the pendulum mass 1 12 strikes, as shown in Fig. 1 in the left illustration, against the pawl 108 and dissolves them against the force of the spring 1 10 of the ratchet wheel 106.
  • the switching device 104 as in Fig. 1 in the middle illustration shown, opened, that is, the pawl 108 does not engage again in the ratchet wheel 106 a.
  • Fig. 2 shows the centrifugal pendulum device 100 in an operation with a shortened thread length l / x, for example, 1/2.
  • the pawl 108 engages in the ratchet wheel 106 a.
  • the second pendulum mass 1 12 oscillates outside its resonance range with an NEN predetermined value below the amplitude, so that the second pendulum mass 1 12 does not reach the pawl 108 and the closed switching device 104 does not open. This oscillates the first pendulum mass 102 with shortened thread length II x.
  • the second pendulum mass 1 12 is used for frequency-dependent actuation of the switching device 104 and can therefore also be referred to as a sensor pendulum mass.
  • FIG. 3 shows a structural design of a centrifugal pendulum device 200 which switches automatically between two natural frequencies, such as centrifugal pendulum device 100 according to FIG. 1 and FIG. 2.
  • FIG. 4 shows the centrifugal pendulum device 200 in an exploded view.
  • the centrifugal pendulum device 200 has a pendulum mass carrier part 202.
  • the pendulum mass carrier part 202 is an output part-side flange part of a dual-mass flywheel.
  • the centrifugal pendulum device 200 has a plurality of first pendulum masses. An explanation is given by way of example based on a first pendulum mass 204.
  • the first pendulum mass 204 is disposed on the pendulum mass support member 202 under centrifugal force between two end positions displaceable.
  • the first pendulum mass 204 is arranged to be displaceable on the pendulum mass carrier part 202 with the interposition of an intermediate part 206.
  • For displaceable arrangement of the first pendulum mass 204 on the pendulum mass support member 202 serve spherical rollers, such as 208.
  • the centrifugal pendulum device 200 has a switching device, not shown here. By means of the switching device, a displaceability of the intermediate part 206 relative to the pendulum mass carrier part 202 can be blocked and / or released.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

L'invention concerne un amortisseur de vibrations torsionnelles, notamment un volant d'inertie à deux masses, comprenant un élément d'entrée et un élément de sortie dotés d'un axe de rotation commun autour duquel l'élément d'entrée et l'élément de sortie peuvent tourner simultanément et avoir une liberté rotationnelle limitée l'un par rapport à l'autre, un dispositif amortisseur à ressort qui agit entre l'élément d'entrée et l'élément de sortie et est doté d'au moins un accumulateur d'énergie, et un dispositif balancier à force centrifuge doté d'au moins une première masse oscillante mobile sous l'effet de la force centrifuge. Le dispositif balancier à force centrifuge est commutable automatiquement entre une première fréquence propre et une deuxième fréquence propre, afin d'améliorer l'amortisseur de vibrations torsionnelles en termes de construction et/ou de fonctionnement.
EP15709826.0A 2014-02-03 2015-01-26 Amortisseur de vibrations torsionnelles Withdrawn EP3102843A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014201881 2014-02-03
PCT/DE2015/200023 WO2015113565A1 (fr) 2014-02-03 2015-01-26 Amortisseur de vibrations torsionnelles

Publications (1)

Publication Number Publication Date
EP3102843A1 true EP3102843A1 (fr) 2016-12-14

Family

ID=52682588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15709826.0A Withdrawn EP3102843A1 (fr) 2014-02-03 2015-01-26 Amortisseur de vibrations torsionnelles

Country Status (4)

Country Link
EP (1) EP3102843A1 (fr)
CN (1) CN105960547B (fr)
DE (1) DE112015000613A5 (fr)
WO (1) WO2015113565A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015224771A1 (de) 2015-12-10 2017-06-14 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung
DE102015225208A1 (de) 2015-12-15 2017-06-22 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung, Drehmomentübertragungseinrichtung und Antriebsstrang
DE102015226312A1 (de) 2015-12-21 2017-06-22 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung
DE102016200133A1 (de) 2016-01-08 2017-07-13 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung
DE102016200552A1 (de) 2016-01-18 2017-07-20 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung
DE102016201273A1 (de) 2016-01-28 2017-08-03 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung
DE102016201534A1 (de) 2016-02-02 2017-08-03 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung, Drehmomentübertragungseinrichtung und Antriebsstrang für ein Fahrzeug
DE102016203632A1 (de) 2016-03-07 2017-09-07 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung
DE102016203633A1 (de) 2016-03-07 2017-09-07 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung

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DE10310831A1 (de) 2002-04-10 2003-11-06 Luk Lamellen & Kupplungsbau Antriebsstrang und Verfahren zu dessen Betrieb
DE10331391B4 (de) * 2003-07-11 2006-05-18 Adam Opel Ag Schwungrad
JP5675363B2 (ja) * 2007-11-29 2015-02-25 シェフラー テクノロジーズ アクチエンゲゼルシャフト ウント コンパニー コマンディートゲゼルシャフトＳｃｈａｅｆｆｌｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ ＡＧ ＆ Ｃｏ． ＫＧ 特に駆動機械と被駆動部との間の出力伝達のための動力伝達装置
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Also Published As

Publication number Publication date
WO2015113565A1 (fr) 2015-08-06
CN105960547A (zh) 2016-09-21
CN105960547B (zh) 2018-06-19
DE112015000613A5 (de) 2016-11-03

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