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WO2017054819A1 - Système de pendule centrifuge et dispositif de transmission de couple - Google Patents

Système de pendule centrifuge et dispositif de transmission de couple Download PDF

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Publication number
WO2017054819A1
WO2017054819A1 PCT/DE2016/200452 DE2016200452W WO2017054819A1 WO 2017054819 A1 WO2017054819 A1 WO 2017054819A1 DE 2016200452 W DE2016200452 W DE 2016200452W WO 2017054819 A1 WO2017054819 A1 WO 2017054819A1
Authority
WO
WIPO (PCT)
Prior art keywords
pendulum
pendulum mass
centrifugal
centrifugal pendulum
speed
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
PCT/DE2016/200452
Other languages
German (de)
English (en)
Inventor
Marc Helfer
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
Priority to DE112016004474.7T priority Critical patent/DE112016004474A5/de
Publication of WO2017054819A1 publication Critical patent/WO2017054819A1/fr
Anticipated expiration legal-status Critical
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
    • 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 centrifugal pendulum device, in particular for a torque transmission device, the centrifugal pendulum device having a rotation axis, a pendulum mass carrier rotatable about the axis of rotation and at least one pendulum mass displaceable on the pendulum mass carrier along a pendulum mass with a center of gravity.
  • the invention relates to a torque transmission device, in particular for a drive train of a motor vehicle driven by a combustion engine.
  • Center of gravity of a pendulum mass is arranged pendulum, and a predetermined second distance between the pendulum point and the center of gravity of a pendulum mass, wherein the second distance is formed variable depending on at least two different to be killed vibration orders and / or speeds of the pendulum.
  • Runways for the respective common rolling elements are different second distances, that is formed in the sense of a thread pendulum different lengths of thread lengths. In this way, different vibration orders come about, depending on the setting of a desired order of vibration, a corresponding speaking curvature of the raceways is adjusted.
  • At least two adjustable second distances from the rolling elements at least two effective for the rolling elements switchable career pairings with different curvature.
  • a displacement of the raceway pairings with larger curvatures in the radial direction is provided, whereby a radial displacement of the raceways of the pendulum masses radially inward and a displacement of the raceways of the pivotal flange is provided radially outward.
  • the invention has for its object to improve a centrifugal pendulum device mentioned above structurally and / or functionally.
  • the invention has the object, structurally and / or functionally to improve a torque transmission device mentioned above.
  • centrifugal pendulum device in particular for a torque transmission device, the centrifugal pendulum device comprising a rotation axis, a pendulum mass carrier rotatable about the axis of rotation and at least one pendulum mass displaceable on the pendulum mass carrier along a pendulum masses with a center of gravity in which a position of the center of gravity of the at least one Pendulum mass and thus a Tilgerowski angleable.
  • the statements “axially”, “radially” and “in the circumferential direction” refer to an extension direction of the axis of rotation of the centrifugal pendulum device.
  • “Axial” then corresponds to an extension direction of the axis of rotation of the centrifugal pendulum device.
  • “Radial” is then a direction perpendicular to the extension direction of the axis of rotation of the centrifugal pendulum device and intersecting with the axis of rotation of the centrifugal pendulum device direction.
  • “In the circumferential direction” then corresponds to a rotational direction about the axis of rotation of the centrifugal pendulum device.
  • the centrifugal pendulum device can be used for arrangement on a torque transmission device.
  • the centrifugal pendulum device can serve to eliminate torsional vibrations.
  • the at least one pendulum mass may be connected to the pendulum mass carrier bifilar.
  • the at least one pendulum mass can be monofilar connected to the pendulum mass carrier.
  • the at least one pendulum mass can be arranged to be displaceable by means of rolling elements on the pendulum mass carrier.
  • the at least one pendulum mass can be displaced under centrifugal force into an operating position. In the operating position, the at least one pendulum mass can be displaced under the action of torsional vibrations. In the operating position, the at least one pendulum mass can be displaced to eliminate torsional vibrations.
  • the at least one pendulum mass can be displaced starting from a middle position between two end positions.
  • the pendulum mass carrier may have a disc-like or annular disk-like shape.
  • the pendulum mass carrier can be made in one piece.
  • the pendulum mass carrier may have a flange-like shape.
  • the pendulum mass carrier can have a single carrier flange. The only support flange can serve for bilateral arrangement of pendulum masses.
  • the pendulum mass carrier can be made in several parts.
  • the pendulum mass carrier may have a double flange-like shape.
  • the pendulum mass carrier may have a first pendulum mass carrier part and a second pendulum mass carrier part.
  • the first pendulum mass carrier part and the second pendulum mass carrier part can each have an inner ring section and a carrier flange section.
  • the first pendulum mass carrier part and the second pendulum mass carrier part can be arranged with their inner ring sections adjacent to each other.
  • the support flange portions of the first pendulum mass support member and the second pendulum mass support member may be parallel to each other and axially from each other
  • the pendulum mass carrier part and the second pendulum mass carrier part can be firmly connected, in particular riveted, to one another.
  • the support flange portions of the first pendulum mass support member and the second pendulum mass support member may define a receiving space for the at least one pendulum mass.
  • the pendulum mass carrier may have at least one recess for a rolling element.
  • the at least one recess can serve to determine a pendulum track.
  • the at least one recess may have a kidney-like shape.
  • the at least one pendulum mass can be arranged eccentrically to the axis of rotation.
  • the at least one pendulum mass may have at least one recess for a rolling element.
  • the at least one recess can serve to determine a pendulum track.
  • the at least one recess may have a kidney-like shape.
  • the position of the center of gravity of the at least one pendulum mass may be radially displaceable.
  • a Tilgerixix can be lowered with increasing speed.
  • a Tilgerix can be lowered to an excitation order of an internal combustion engine.
  • a speed may be an engine speed.
  • the at least one pendulum mass may comprise a first pendulum mass portion and at least one further pendulum mass portion displaceable on the first pendulum mass portion.
  • the at least one further pendulum mass part can be arranged to be radially displaceable on the first pendulum mass part.
  • Pendulum mass part can be displaced between a radially inner end position and a radially outer end position.
  • the at least one further pendulum mass part may be arranged to be displaceable on the first pendulum mass part under centrifugal force.
  • the at least one further pendulum mass part can be arranged to be displaceable against the force of a spring on the first pendulum mass part under centrifugal force.
  • the at least one further pendulum mass part may be displaceable radially outward against the force of a spring on the first pendulum mass part if a centrifugal force exceeds a predetermined value.
  • the at least one further pendulum mass part may be displaceable radially inward on the first pendulum mass part under the effect of the force of a spring, if a centrifugal force falls below a predetermined value.
  • the centrifugal pendulum device may have a spring device which is effective between the first pendulum mass part and the at least one further pendulum mass part.
  • the spring device can be supported on the one hand on the first pendulum mass part and on the other hand on the at least one further pendulum mass part.
  • the first pendulum mass part and the at least one further pendulum mass part can each have a recess for receiving the spring device.
  • the spring device may have a radial spring direction.
  • the spring device can at least Have a coil spring.
  • the spring device may have at least one compression spring.
  • the spring device may have at least one tension spring.
  • the first pendulum mass part and the at least one further pendulum mass part may at least partially have at least approximately corresponding contours.
  • the first pendulum mass part may have an arcuate shape.
  • the first pendulum mass part may have an inner edge and an outer edge in the radial direction.
  • the at least one further pendulum mass part may have an arcuate shape.
  • the at least one further pendulum mass part may have an inner edge and an outer edge in the radial direction.
  • the at least one further pendulum mass part may be shorter in the circumferential direction than the first pendulum mass part.
  • the at least one further pendulum mass part may have a smaller width in the radial direction than the first pendulum mass part.
  • the inner edge of the first pendulum mass part and the inner edge of the at least one further pendulum mass part may be at least approximately flush.
  • the outer edge of the first pendulum mass part and the inner edge of the at least one further pendulum mass part may be at least approximately flush.
  • the first pendulum mass part may have a predetermined mass, mass distribution and / or inertia.
  • the at least one further pendulum mass part may have a predetermined mass, mass distribution and / or inertia.
  • the spring device may have a predetermined spring characteristic.
  • the centrifugal force penning device can be tuned such that a Tilger himself decreases with increasing speed, at a high engine speed, the Tilgerowski impress order of the internal combustion engine corresponds at least approximately.
  • a low speed may be a speed below a minimum operating speed of an internal combustion engine.
  • a high speed may be a speed above a minimum operating speed of an internal combustion engine.
  • a minimum operating speed may be slightly above an idling speed.
  • the object on which the invention is based is achieved with a torque transmission device, in particular for a drive train of a combustion engine.
  • motor vehicle driven motor vehicle wherein the Drehmomentübertragungsein- direction comprises such a centrifugal pendulum device.
  • the torque transmission device can be used for arrangement in a drive train of a motor vehicle.
  • the drive train may include an internal combustion engine.
  • the internal combustion engine may have a crankshaft.
  • the powertrain may include a single flywheel.
  • the drive train may have a torsional vibration damper, in particular a dual-mass flywheel.
  • the powertrain may include a friction clutch device.
  • the drive train may have a hydrodynamic torque converter.
  • the drive train may have a transmission.
  • the drive train may have at least one drivable vehicle wheel.
  • the drive train may have an accessory drive.
  • the torque transmitting device may be an engine shaft, a torsional vibration damper, a one-way flywheel, a two-mass flywheel, a friction clutch device, a hydrodynamic torque converter or an accessory drive.
  • the invention thus provides inter alia a centrifugal pendulum with variable classification.
  • a roller-guided pendulum can be designed with a variable center of gravity (thread length I).
  • a moving mass can be mounted on the pendulum.
  • a centrifugal movement of this mass under centrifugal force may be dependent on a speed of an engine, so that a center of gravity of the mass is shifted outwards at a certain speed.
  • There may be a change in the center of gravity of the entire pendulum thus a change in a lever arm of the pendulum, this may be followed by a change in a damping arrangement of the pendulum under speed.
  • Fig. 4 is a centrifugal pendulum device with a two-piece pendulum mass for speed-dependent change a Tilgerix Aunt with tension spring in the middle
  • 6 shows a centrifugal pendulum device with a two-part pendulum mass for the speed-dependent variation of a damping arrangement with a compression spring at low speed
  • 7 is a centrifugal pendulum device with a two-piece pendulum mass for speed-dependent change of a Tilgerix Aunt with compression spring at medium speed
  • Fig. 8 is a centrifugal pendulum device with a two-piece pendulum mass for speed-dependent change of a Tilger Aunt with compression spring at high speed
  • Fig. 9 is a diagram of vibration orders
  • Fig. 10 is a diagram to vibrational excitations.
  • FIG. 1 shows a centrifugal pendulum device 100 having a pendulum mass carrier 102 which can be rotated about an axis of rotation and a two-part pendulum mass 104 for the speed-dependent modification of a damper arrangement at low speed.
  • Fig. 2 shows the centrifugal pendulum device 100 at high speed.
  • the centrifugal pendulum device 100 is used for arrangement on a torque transmission device of a motor vehicle drive train in order to eliminate torsional vibrations.
  • the pendulum mass 104 is arranged to be displaceable on the pendulum mass carrier 102 along a pendulum track.
  • the pendulum mass 104 has a first pendulum mass portion 108 and a further pendulum mass portion 110 arranged displaceably on the first pendulum mass portion 108.
  • a helical compression spring 1 12 is effective between the first pendulum mass portion 108 and the further pendulum mass part 1 10.
  • the helical compression spring 1 12 is disposed in recesses of the pendulum mass parts 108, 1 10 and is supported on the one hand on the first pendulum mass portion 108 and on the other hand on the other pendulum mass portion 1 10.
  • the pendulum mass 104 shifts upon rotation of the centrifugal pendulum device 100 under centrifugal force in an operating position in which it is displaced under the action of torsional vibrations to eliminate torsional vibrations.
  • the further pendulum mass part 1 10 is then also subject to the centrifugal force. If the Centrifugal force exceeds a force of the helical compression spring 1 12, the further pendulum mass part 1 10 moves against a force of the helical compression spring 1 12 from radially inward to radially outward. If the centrifugal force falls below a force of the helical compression spring 1 12, the further pendulum mass part 1 10 shifts under the action of the force of the helical compression spring 1 12 from radially outside to radially inside. A displacement of the further pendulum mass part 1 10 thus causes a corresponding displacement of the center of gravity 1 14 of the pendulum mass 104, so that a Tilgerowski the centrifugal pendulum device 100 decreases with increasing speed.
  • Fig. 3 shows a centrifugal pendulum device 200 with a two-piece pendulum mass 202 for speed-dependent variation of a Tilger onion with tension spring 204 at low speed.
  • Fig. 4 shows the centrifugal pendulum device 200 at medium speed.
  • Fig. 5 shows the centrifugal pendulum device 200 at high speed. It can be seen how a center of gravity 206 of the pendulum mass 202 moves with increasing speed against a force of the tension spring 204 further radially outward.
  • a distance I of a center of gravity 206 from a pivot axis 210 of the pendulum mass 202 increases from a minimum distance Ln to a maximum distance Lax, while a distance L between the axis of rotation 208 of the centrifugal pendulum device 200 and the pivot axis 210 of the pendulum mass 202 remains unchanged.
  • Fig. 6 shows a centrifugal pendulum device 300 with a two-piece pendulum mass 302 for speed-dependent variation of a Tilger onion with compression spring 304 at low speed.
  • Fig. 7 shows the centrifugal pendulum device 300 at medium speed.
  • Fig. 8 shows the centrifugal pendulum device 300 at high speed. It can be seen how a center of gravity 306 of the pendulum mass 302 moves with increasing speed against a force of the compression spring 304 further radially outward.
  • a distance I of a center of gravity 306 from a pivot axis 310 of the pendulum mass 302 increases from a minimum distance Ln to a maximum distance Lax, while a distance L between the axis of rotation 308 of the centrifugal pendulum device 300 and the pivot axis 310 of the pendulum mass 302 remains unchanged.
  • FIGS. 1 and 2 shows a diagram 400 for vibration orders.
  • an rpm is plotted on an x-axis and a vibration order is plotted on ay-axis.
  • a vibration order path 402 of an engine boost a vibration order path 404 of a fixed tangle centrifugal pendulum device, and a vibration order path 406 of a variable speed flywheel pendulum device such as a centrifugal pendulum device 100, 200, or 300.
  • the centrifugal pendulum device with variable Tilgerix is tuned such that in a speed range below a minimum operating speed 408 of an internal combustion engine of
  • the absorber arrangement must be maintained at a certain distance from the oscillation order course 402 of the excitation of the internal combustion engine in order to avoid resonance problems below the minimum operating speed 408 of the internal combustion engine, so that a damping effect above the minimum operating speed 408 of the internal combustion engine is limited.
  • FIGS. 1 to 8 reference is additionally made in particular to FIGS. 1 to 8 and the associated description.
  • FIG. 10 shows a diagram 500 of vibration excitations on a transmission input shaft.
  • an rpm is plotted on an x-axis and a vibration angle on a y-axis.
  • a vibration excitation vehicle 502 without a centrifugal pendulum device a vibration excitation vehicle 504 having a variable speed damper centrifugal pendulum device, and a vibration excitation vehicle 506 having a fixed mass damper centrifugal pendulum device.
  • Obvious is the significantly improved absorber effect in an operating range 508 of an internal combustion engine above a minimum operating speed 510.
  • FIGS. 1 to 9 and the associated description.

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

Abstract

L'invention concerne un système de pendule centrifuge (100), en particulier pour un dispositif de transmission de couple, le système de pendule centrifuge (100) comprenant un axe de rotation, un support de masse pendulaire (102) apte à tourner autour de l'axe de rotation et au moins une masse pendulaire (104) ayant un centre de gravité (114), disposée sur le support de masse pendulaire (102) de manière à pouvoir se déplacer le long d'une trajectoire de pendule. Selon l'invention, une position du centre de gravité (114) de ladite au moins une masse pendulaire (104) est variable et un ordre d'amortisseur de vibrations peut ainsi varier en fonction du régime. L'invention concerne également un dispositif de transmission de couple, en particulier pour une chaîne cinématique d'un véhicule à moteur entraîné par un moteur à combustion interne, le dispositif de transmission de couple comprenant un tel système de pendule centrifuge (100).
PCT/DE2016/200452 2015-10-02 2016-09-27 Système de pendule centrifuge et dispositif de transmission de couple Ceased WO2017054819A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112016004474.7T DE112016004474A5 (de) 2015-10-02 2016-09-27 Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015219125.7 2015-10-02
DE102015219125 2015-10-02

Publications (1)

Publication Number Publication Date
WO2017054819A1 true WO2017054819A1 (fr) 2017-04-06

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PCT/DE2016/200452 Ceased WO2017054819A1 (fr) 2015-10-02 2016-09-27 Système de pendule centrifuge et dispositif de transmission de couple

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DE (2) DE102016218526A1 (fr)
WO (1) WO2017054819A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10107358B2 (en) * 2014-01-28 2018-10-23 Schaeffler Technologies AG & Co. KG Centrifugal force pendulum
WO2020015783A1 (fr) * 2018-07-19 2020-01-23 Schaeffler Technologies AG & Co. KG Dispositif amortisseur de vibrations à vitesse de rotation adaptative

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1041309A1 (fr) * 1999-04-01 2000-10-04 Firma Carl Freudenberg Amortisseur de vibrations adaptif à la vitesse de rotation
WO2012083928A1 (fr) * 2010-12-23 2012-06-28 Schaeffler Technologies AG & Co. KG Dispositif de pendule à force centrifuge
DE102014219328A1 (de) * 2013-09-26 2015-03-26 Schaeffler Technologies Gmbh & Co. Kg Fliehkraftpendel
WO2015113540A1 (fr) * 2014-01-28 2015-08-06 Schaeffler Technologies AG & Co. KG Pendule centrifuge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1041309A1 (fr) * 1999-04-01 2000-10-04 Firma Carl Freudenberg Amortisseur de vibrations adaptif à la vitesse de rotation
WO2012083928A1 (fr) * 2010-12-23 2012-06-28 Schaeffler Technologies AG & Co. KG Dispositif de pendule à force centrifuge
DE102014219328A1 (de) * 2013-09-26 2015-03-26 Schaeffler Technologies Gmbh & Co. Kg Fliehkraftpendel
WO2015113540A1 (fr) * 2014-01-28 2015-08-06 Schaeffler Technologies AG & Co. KG Pendule centrifuge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10107358B2 (en) * 2014-01-28 2018-10-23 Schaeffler Technologies AG & Co. KG Centrifugal force pendulum
WO2020015783A1 (fr) * 2018-07-19 2020-01-23 Schaeffler Technologies AG & Co. KG Dispositif amortisseur de vibrations à vitesse de rotation adaptative

Also Published As

Publication number Publication date
DE112016004474A5 (de) 2018-06-14
DE102016218526A1 (de) 2017-04-06

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