DE102016225190A1 - Dual mass flywheel for torsional vibration decoupling and motor vehicle with such - Google Patents

Dual mass flywheel for torsional vibration decoupling and motor vehicle with such

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Publication number
DE102016225190A1
DE102016225190A1 DE102016225190.2A DE102016225190A DE102016225190A1 DE 102016225190 A1 DE102016225190 A1 DE 102016225190A1 DE 102016225190 A DE102016225190 A DE 102016225190A DE 102016225190 A1 DE102016225190 A1 DE 102016225190A1
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Germany
Prior art keywords
flange
ends
pendulum
mass
mass flywheel
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Pending
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DE102016225190.2A
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German (de)
Inventor
Lutz Pahlich
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Audi AG
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Audi AG
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Publication date
Application filed by Audi AG filed Critical Audi AG
Priority to DE102016225190.2A priority Critical patent/DE102016225190A1/en
Publication of DE102016225190A1 publication Critical patent/DE102016225190A1/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14Suppression 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
    • F16F15/1407Suppression 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
    • F16F15/145Masses mounted with play with respect to driving means thus enabling free movement over a limited range

Abstract

The invention relates to a dual mass flywheel (12) for torsional vibration decoupling of a drive train (14) in a motor vehicle (16) having a primary mass (68) for coupling to a crankshaft (66); a secondary mass (70) rotatably mounted relative to the primary mass (68); a spring element that elastically couples the primary mass (68) to the secondary mass (70); a flange (10) connected to the secondary mass (70) and having a flange gate (28) with two ends (52, 54); and a centrifugal pendulum (30) having a pendulum gate (42) with two ends (52, 54); wherein the centrifugal force pendulum (34) on the flange (10) by means of a roller (44) is movably supported by the roller (44) in both scenes (46) engages, wherein at the ends (52, 54) at least one of the scenes ( 46) in each case an elastic damping material (50) is arranged, which has a lower material hardness than a material of the ends (52, 54) of the scenes (46).

Description

  • The invention relates to a dual mass flywheel for torsional vibration decoupling and a motor vehicle with such a dual mass flywheel for torsional vibration decoupling.
  • A powertrain of a motor vehicle is a vibratory system which is subject to a variety of vibrational excitations. For example, an internal combustion engine designed, in particular, as a reciprocating engine excites the driveline with torsional vibrations, since a crankshaft of the internal combustion engine rotates with a non-uniform rotational movement, which is referred to as a rotation irregularity of the internal combustion engine. In order to be able to reduce these unwanted torsional vibrations, which are perceived as uncomfortable for an occupant of the motor vehicle, at least one damping element, in particular designed as a dual mass flywheel, is used in the drive train in modern motor vehicles.
  • From the prior art, in particular from the mass-produced vehicle, such dual mass flywheels are already known. For example, the document discloses US Pat. No. 6,244,113 B1 a torsional vibration damper, in which two flywheel masses are arranged coaxially with each other. The two flywheel masses are rotatably connected to each other via coupling rods, which engage in raceways of the two flywheel masses. In this case, a damping is provided which damps a movement of engaging in the flywheel masses coupling masses.
  • In addition, the document reveals DE 695 21 982 T2 a dual mass flywheel with two coaxially arranged flywheel masses, which are arranged for rotational movement relative to each other. By means of spring-supported coupling arrangements, the two flywheel masses are rotatably connected to each other, so that the coupling assemblies control the rotational movement between the one and the other flywheel mass.
  • Further, the document discloses DE 696 15 982 T2 a dual mass flywheel having two coaxial flywheel masses arranged for rotational movement in a tensile and a thrust direction relative to each other from a neutral position. By means of spring-supported coupling arrangements, the two flywheel masses are rotatably connected to each other, so that the coupling assemblies control the rotational movement between the one and the other flywheel mass. Furthermore, a Endanschlagsfederanordnung is provided which absorbs the last part of the relative rotation of the flywheel masses.
  • In order to meet today's requirements of engine construction, especially in series production vehicles (such as automatic stop-start, reduction of displacement and / or number of cylinders), newer dual-mass flywheels are equipped with a centrifugal pendulum assembly to reduce the unwanted torsional vibrations particularly effectively.
  • Such dual-mass flywheels equipped with a centrifugal force pendulum arrangement having at least one centrifugal pendulum assembly are known in the prior art, in particular in mass-produced vehicles. Usually, the centrifugal pendulum on at least one pendulum mass, which is movably mounted on at least one roller in a roller track or backdrop of the dual mass flywheel and a roller track or backdrop of the centrifugal pendulum. For example, during low-speed driving, d. H. at particularly low engine speeds, when the engine is switched off and / or when it is switched on, d. H. Starting the engine, the centrifugal pendulum undergoes a particularly high, in particular maximum possible deflection. At the dual mass flywheel, a limiting structure may be provided, in which the centrifugal pendulum engages via a limiting element in order to limit the maximum possible deflection of the centrifugal pendulum. So that undesired noises can ideally be completely avoided when the limiting element is abutted against the limiting structure, a damping element is provided on the limiting element. Nevertheless, in the maximum possible deflection of the centrifugal pendulum, the roller due to a deformation of the limiting element at ends of the roller track, that is, to the dual mass flywheel, which leads to a noise, which z. B. may occur as rattling noise. The fact that the dual mass flywheel and the roller are usually made of a metallic material, in particular steel, causes noise to be generated by the occupants of the motor vehicle as a noise annoyance, ie. H. is perceived as particularly uncomfortable. From this structure, the invention is based.
  • The object of the present invention is to provide a low-noise two-mass flywheel with a centrifugal pendulum.
  • This object is achieved by a dual mass flywheel for torsional vibration decoupling of a drive train and by a motor vehicle with such Dual mass flywheel with the features of the independent claims solved.
  • Accordingly, a dual mass flywheel according to the invention for torsional vibration decoupling of a drive train in a motor vehicle with a primary mass for coupling with a crankshaft and with respect to the primary mass rotatably mounted secondary mass and a spring element which elastically couples the primary mass with the secondary mass is provided. With the secondary mass, a flange is connected, which has a Flanschkulisse with two ends. A centrifugal pendulum, which has a pendulum backdrop with two ends is held movably on the flange by means of a roller by the roller engages in both scenes.
  • In order to provide a dual mass flywheel with a centrifugal pendulum, the centrifugal pendulum at a maximum deflection causes possible no noise, at least one of the scenes each an elastic damping material is arranged at the ends, which has a lower material hardness than a material of the ends of the scenes themselves, ie in particular a material of the flange and / or the centrifugal pendulum.
  • The dual-mass flywheel can be integrated between an output side of an internal combustion engine of the motor vehicle and a main transmission device of the motor vehicle in the drive train of the motor vehicle. The primary mass is generally rotationally symmetrical, for example annular and may be coaxial with a crankshaft of the internal combustion engine, non-rotatably and non-displaceably connectable in the axial direction. To the primary mass, the secondary mass is arranged coaxially rotatable, for example via a ball bearing or a plain bearing. Firmly connected to the secondary mass, for example, riveted, is the flange arranged coaxially to the secondary mass, which is in contact with the spring element, for example via a flange at one end. Another end of the spring element is connected to the primary mass, for example via a spring element stop in contact, whereby the secondary mass is elastically coupled via the spring element with the primary mass. This means that the secondary mass to the primary mass is arranged axially immovable, but rotatable within an angular range.
  • The flange has a material recess designed as a flange gate. In particular, the flange gate penetrates the flange so that the flange gate is formed as a through hole in the flange. The Flanschkulisse may for example have a different shape from a circle, z. B. the shape of a curved or arcuate slot, so that the Flanschkulisse comprises a first and second end. The flange gate is further adapted to engage the roller in the flange gate so that the roller can be steered or rolled along the flange gate, that is, between the first and second ends of the flange gate. The roll may be made, for example, of a metallic material, such as steel.
  • Further, the dual mass flywheel on a centrifugal pendulum, which has the corresponding corresponding to the Flanschkulisse pendulum backdrop, which in turn also includes a first and a second end. The pendulum scenery is set up so that the role engages the pendulum backdrop, so that the role along the pendulum backdrop, that can be directed between the first and the second end of the pendulum backdrop. The fact that the roller engages in the Flanschkulisse and in the pendulum backdrop, the centrifugal pendulum is held movably on the flange. The pendulum backdrop can also be formed as a curved or arcuate slot.
  • In particular, the flange gate and the pendulum gate can be compared with respect to their respective geometry, i. H. Shape or contour and position, be coordinated with each other so that at a maximum deflection of the centrifugal pendulum, the role simultaneously strikes the end of the pendulum backdrop and the end of the Flanschkulisse.
  • At the ends of at least one of the scenes, that is, either at the ends of the Flanschkulisse or at the ends of the pendulum backdrop, respectively a damping material is arranged, which faces a material at the ends of the scenes themselves, so in particular a metallic material, for example steel , in which the Flanschkulisse or pendulum gate are made at least for the most part, has a greater elasticity. The end is thus made of steel, or generally the flange material and in front, now in the cavity of the backdrop, the damping material is arranged. In addition, the damping material compared to the metallic material has a lower material hardness. For example, the damping material may be an elastic plastic.
  • By the damping material is disposed at the ends of at least one link, direct contact between the material of the roller and the material of the flange is prevented when the roller abuts one of the two ends of the corresponding link. This means that the centrifugal pendulum or the roller at a maximum deflection of the centrifugal pendulum produces a quieter impact noise than without the damping material. Ideally, the noise is neither from an occupant of the Motor vehicle still audible from a passerby outside the motor vehicle. Thus, a dual-mass flywheel is provided, which offers a particularly high occupant comfort.
  • It is shown to be advantageous if the damping material is arranged at the ends of the pendulum gate (in contrast to the Flanschkulisse). In other words, the pendulum backdrop, at the ends of the damping material is arranged. This has the advantage that direct contact between the steel of the roller and the steel of the pendulum gate or steel of the flange is prevented when the roller abuts one of the two ends of the pendulum gate, whereby the impact noise with respect to an undamped pendulum backdrop quieter is.
  • Alternatively or additionally, the damping material may be arranged at the ends of the Flanschkulisse. This has the advantage that direct contact between the steel of the roller and the steel of the flange is prevented when the roller abuts one of the two ends of the Flanschkulisse, whereby the impact noise is quieter with respect to an undamped Flanschkulisse.
  • The damping material may be wholly or partly formed from an elastomer. This offers the advantage that the damping material is energy absorbing.
  • There are several ways to attach the damping material to the ends of the scenes. The damping material may have a form corresponding to a shape groove disposed at the respective ends and inserted into the molding groove. In other words, the ends of the pendulum gate and / or Flanschkulisse each have a further designed as a form groove material recess. In particular, the forming groove penetrates the flange or the pendulum so that the forming groove is formed as a further through hole in the flange or in the pendulum. This means that the pendulum backdrop or Flanschkulisse has a shape, so that the mold groove forms part of the pendulum backdrop or Flanschkulisse. The damping material is in this case designed so that it is suitable for the shape of the mold groove to be held in particular stationary in the mold groove, so that, for example, the respective end is formed by means of the damping material. This is particularly advantageous since the damping material inserted into the mold groove can be removed from the mold groove, for example by means of a suitable tool, as a result of which the damping material is particularly easy to replace, in particular after wear of the damping material.
  • According to a further possibility, it is provided that the damping material is thermally attached at the respective ends to the material or steel of the ends. This means that the damping material is attached by means of a joining technique at the ends, in which a particularly high heat input into the damping material and / or the material of the ends is done. In the event that the damping material is formed as a plastic, in particular elastomer, this may mean that the initially heated and thereby be arranged at the ends damping material is connected by means of a particularly intimate connection with the material of the ends. The advantage here is that the damping material is particularly firmly arranged at the ends, so that it can not, for example, by a vibration, out of the ends or fall away from it.
  • The damping material may be formed as a damping shoe, which has a shape corresponding to the respective ends, wherein the damping shoe is pushed onto the respective end. In other words, the damping material may have a shape matching the respective end, that is, the shape of the damping material or the damping shoe is adapted to a contour of the respective end, so that the damping material forms the respective end when it is on a corresponding area the respective backdrop is deferred. In this embodiment, it is advantageous that the damping material is particularly easy to replace, for example, when it is worn.
  • Forces should be transmitted symmetrically between the centrifugal pendulum and the flange. For this purpose, it has proven to be advantageous that the Flanschkulisse of the flange is provided in a first flange and the flange has a further flange. The centrifugal pendulum can thus be held symmetrically between the flange elements. For this purpose, the further flange member has a further Flanschkulisse with two ends and is arranged at a distance coaxial and rotationally fixed to the first flange, wherein the centrifugal pendulum between the flange is movably held by the roller by the roller engages in the three scenes. This means that the flange has a first and a further flange element, which are arranged coaxially, non-rotatably and immovably to one another, so that in the axial direction between the first and the further flange an intermediate portion is formed, which has a distance which with a thickness of Pendulum corresponds, so that the pendulum is movably arranged between the first flange and the further flange. Here, the Flanschkulisse is formed in the first flange, wherein in the second flange is formed a further Flanschkulisse with two ends, which corresponds in shape, material and shape at least substantially the Flanschkulisse. The further Flanschkulisse is arranged at a position of the other flange, so that the further Flanschkulisse - viewed in the axial direction of the flange - is located directly above the Flanschkulisse. The first and the further Flanschkulisse are thus adapted to the role, the longitudinal axis of which is always at least substantially parallel to a central axis of the flange or the two mass flywheel, engages in the first and the further Flanschkulisse, wherein the roller also in the pendulum backdrop intervenes. This has the advantage that the roller, at a maximum deflection of the centrifugal pendulum, simultaneously strikes one end of the Flanschkulisse and at one end of the other Flanschkulisse, so that a very low impact noise is generated because an impact energy of the role distributed to three ends.
  • So far, only a single pair of scenes of pendulum backdrop and Flanschkulisse has been described, over which the centrifugal pendulum is held. Alternatively or additionally, the centrifugal pendulum may have a further pendulum backdrop with two ends, in which engages another role, the centrifugal pendulum is movably held on the flange by means of the other role by the further role in the further pendulum backdrop and in at least one further corresponding thereto Flanschkulisse engages with two ends of the flange. In other words, the centrifugal pendulum, for example, at a first side region of the centrifugal pendulum, the first pendulum backdrop and at a second side region of the centrifugal pendulum have a further pendulum backdrop. This means that in the first pendulum backdrop and in the Flanschkulisse the role engages while engaging in the further pendulum backdrop and in the at least one further Flanschkulisse another role, so that the centrifugal pendulum is held movable at two points on the flange. In particular, the further pendulum backdrop and associated therewith at least one further Flanschkulisse be coordinated with respect to their shape or contour to each other so that at a maximum deflection of the centrifugal pendulum, the further role of the end of the further pendulum backdrop and at the end of at least one other Flange backdrop strikes. The advantage here is that a further impact energy of the role is distributed to at least two ends.
  • There is further provided according to the invention a motor vehicle with an internal combustion engine and a crankshaft, in which to the crankshaft a dual mass flywheel is coupled according to one of the preceding embodiments described to at least partially decouple a drive train in the motor vehicle with respect to torsional vibrations. This means that in the motor vehicle at the crankshaft, the primary mass is arranged rotationally fixed and immovable to the crankshaft, wherein at least indirectly, for example, a main transmission device is connected to the secondary mass of the dual mass flywheel. Such a motor vehicle is advantageous because the particularly low noise development of the dual mass flywheel used for the occupants of the motor vehicle, a particularly high noise comfort is realized.
  • In the following an embodiment of the invention is described. This shows:
    • 1 a schematic representation of a perspective view of a portion of a flange which is part of a dual-mass flywheel, with a centrifugal pendulum;
    • 2 a schematic detail view of a backdrop with a roller arranged therein;
    • 3 a schematic detail view of a backdrop, which has a forming groove, wherein a damping material is arranged; and
    • 4 a schematic view of a motor vehicle, in which the dual mass flywheel is used.
  • The exemplary embodiment explained below is a preferred embodiment of the invention. In the exemplary embodiment, the described components of the embodiment each represent individual features of the invention that are to be considered independently of one another, which also each independently further develop the invention and thus also individually or in a different combination than the one shown as part of the invention. Furthermore, the described embodiment can also be supplemented by further features of the invention already described.
  • In the figures, functionally identical elements are each provided with the same reference numerals.
  • 1 shows a perspective view of a part of a flange 10 , a twin-mass flywheel 12 (first in 3 shown), which for the torsional vibration decoupling of a drive train 14 (first in 3 shown) in a motor vehicle 16 (first in 3 shown) is set up. The flange 10 is at least substantially of a circular shape. That means that the flange 10 a center 18 has, from which a first radius 20 and a second radius 22 the essential shape of the flange 10 determine. The first radius 20 is smaller than the second radius 22 , The flange 10 continues at least one flange wing 24 on which with the flange 10 is firmly connected. In particular, the flange can 24 with the flange 10 be formed integrally. In a flange surface 26 is a flange flange 28 executed backdrop 46 trained, which in 2 shown in more detail and described in more detail below.
  • 1 further shows that on the flange 10 a centrifugal pendulum 30 which is arranged, for example, with an optional limiting element 32 over a damping element 34 into an optional boundary structure 36 of the flange 10 intervenes. A pendulum surface 38 lies at least partially on a further flange surface 40 at. The further flange surface 40 is at a distance from the flange surface 26 arranged, wherein the distance by a thickness or material thickness of the flange 10 is defined. The centrifugal pendulum 30 in turn has a running as a pendulum gate 42 backdrop 46 on which in 2 shown in more detail and described in more detail below. In particular, the pendulum scenery 42 so on or in the centrifugal pendulum 30 positioned so that it corresponds with the Flanschkulisse 28, that is, for example, substantially the Flanschkulisse 28 in an axial direction of the flange 10 opposite.
  • It is also in 1 a role 44 shown, the longitudinal extension direction parallel to the axial direction of the flange 10 runs. The role 44 engages in the Flanschkulisse 28 and in the pendulum scenery 42 one, so the centrifugal pendulum 30 movable on the flange 10 is held.
  • With reference to 2 , which shows a detailed view of a backdrop with a roller arranged therein, can be a backdrop 46 be ellipsoidal, arcuate or kidney-shaped. The scenery 46 may be designed in particular as a through hole. Furthermore, the scenery 46 a role career 48 on, which inwardly towards a material recess of the backdrop 46 is directed. That means the roller career 48 is arranged in an at least substantially right angle to the surface of the component, in which the backdrop 46 is trained.
  • In 2 is also an elastic damping material 50 shown at a first end 52 and at a second end 54 the scenery 46 is arranged. The first end 52 may be the second end 54 lie opposite, the end 52 and 54 each in the range of one of two end stops of the roller track 48 are arranged. The damping material 50 can thus be at the end 52 and 54 each form an end stop. For clarity, in 2 the damping material 50 only at one of the two scenes shown 46 shown.
  • Because the flange gate 28 in its shape the backdrop 46 may correspond, the Flanschkulisse 28 a flange-side roller track 56 which, accordingly, in an at least substantially right angle to the flange surface 26 is arranged.
  • Because the pendulum scenery 42 in its shape also the backdrop 46 can correspond, the pendulum backdrop 42 a pendulum-side roller track 58 which, accordingly, in an at least substantially right angle to the pendulum surface 38 is arranged.
  • Because the role 44 in the flange scenery 28 and in the pendulum scenery 42 engages and over an outer peripheral surface 60 with the flange-side roller track 56 and the pendulum side roller track 58 Being in touch is the role 44 with respect to the flange-side roller track 56 and the pendulum-side roller track 58 movable, as the role 44 over the outer peripheral surface 60 along the respective roller track 56 and or 58 is rollable. This is the centrifugal pendulum 30 in relation to the flange 10 movable, the pendulum surface 38 the other flange surface 40 opposite.
  • In another embodiment, the damping material 50 at the end 52 and 54 the flange gate 28 arranged so that the flange-side roller track 56 at least partially by means of the damping material 50 is formed.
  • Alternatively or additionally, the damping material 50 at the end 52 and 54 the pendulum scenery 42 arranged so that the pendulum side of the roller track 58 at least partially by means of the damping material 50 is formed.
  • Because of the flange 28 and / or on the pendulum scenery 42 each at the end 52 and 54 the damping material 50 is arranged, with a maximum possible deflection of the centrifugal pendulum 30 That is, if the role 44 strikes one of the two end stops, in contrast to a conventional dual-mass flywheel damped the end stop.
  • In 1 is further shown that the flange 10 a variety of flange scenes 28 may have, with the individual Flanschkulissen 28 each the backdrop 46 correspond. Furthermore, in 1 visible that the centrifugal pendulum 30 another pendulum backdrop 42 may have, with the further pendulum backdrop 42 also the scenery 46 equivalent. In each case corresponds to a Flanschkulisse 28 with a respective associated pendulum backdrop 42, so in each case by a Flanschkulisse 28 and by a respective associated pendulum backdrop 42 a role 44 is arranged, whereby the roller 44 each in a Flanschkulisse 28 and in a respective associated pendulum backdrop 42 intervenes.
  • 3 shows a detailed view of the scenery 46 which one at the end 52 and or 54 trained shape groove 62 in which a damping material 50 is arranged inserted. That is, the shape groove 62 is designed as a material recess in the component in which the gate 46 is arranged. In particular, the material recess of the molding groove 62 with the Materialausnehmung the backdrop 46 be connected. The damping material 50 In this case, it has a shape corresponding to the shape of the molding groove 62 corresponds. Ideally, the damping material 50 and the shape groove 62 set up the damping material 50 in the mold groove 62 pushed in and held in tension.
  • It is in 3 further illustrated that at least a portion of the backdrop 46 in the area of the end 52 and or 54 from the damping material 50 can be completed. Due to the fact that the damping material 50 unlike the material from which the flange is made 10 and / or the centrifugal pendulum 30 can be manufactured, has a particularly high elasticity and / or a particularly low material hardness, is the role 44 able to reach the respective end stops, since the damping material 50 is set up, under the impact energy of the role 44 yield elastically. This ensures that the role 44 in conjunction with the respective end stops in the scenery 46 only produces a particularly low impact noise.
  • Overall, the example shows how can be provided by the invention, a dual mass flywheel with a centrifugal pendulum for torsional vibration decoupling of a drive train in a motor vehicle, the centrifugal pendulum causes the lowest possible noise at a maximum deflection.
  • 4 shows a schematic view of the motor vehicle 16 in which the dual mass flywheel 12 is used. The powertrain 14 of the motor vehicle 16 usually includes an engine 64 which can be embodied for example as a reciprocating internal combustion engine. A crankshaft 66 of the motor 64 is with a rotationally symmetrical primary mass 68 of the dual mass flywheel 12 rotatably and axially immovable coaxially connected. Not in 4 shown is a spring element which the primary mass 68 in a circumferential direction with a secondary mass 70 over the flange 10 which is between the primary mass 68 and the secondary mass 70 is arranged, elastically coupled. For this purpose, the spring element between the Flanschflügel 24 and a non-illustrated spring element abutment surface, which on the primary mass 68 is formed, supported. The flange 10 is with the secondary mass 70 firmly connected, in particular welded, screwed and / or riveted, whereby the flange 10 or the secondary mass 70 in relation to the primary mass 68 is rotatable.
  • The secondary mass 70 is typically with a coupling device 72 which is integral with a main transmission device 74 can be formed, at least indirectly connected. The main transmission device 74 may for example be designed as a manual transmission or an automatic transmission.
  • Usually at least indirectly via a shaft system 76 with a driven side of the main transmission device 74 connected are wheels 78 of the motor vehicle, wherein the shaft system 76 at least one further transmission device, for example a differential 80 may include.
  • The powertrain 14 is at several attachment points with a chassis, which, for example, as a self-supporting body 82 be executed connected.
  • That in the dual mass flywheel 12 installed centrifugal pendulum 30 experiences a particularly high, in particular maximum possible deflection when the engine 64 of the motor vehicle 16 subject to particularly strong vibrations, that is when the engine 64 generates particularly strong vibrations.
  • This is for example during a low-speed driving, that is at particularly low speeds of the engine 64 , and / or at a shutdown or when switching on or starting or starting the engine 64 the case. This means that due to use of an engine stop / engine start device 84 which is commonly referred to as a stop / start device in the motor vehicle 16 especially often the centrifugal pendulum 30 is maximally deflected.
  • This example shows how a motor vehicle can be provided, in which a dual-mass flywheel is used with a centrifugal pendulum, the centrifugal pendulum at a maximum deflection causes the least possible noise, which ensures a particularly high noise comfort for the occupants of the motor vehicle.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • US 6244134 B1 [0003]
    • DE 69521982 T2 [0004]
    • DE 69615982 T2

Claims (10)

  1. Two-mass flywheel (12) for torsional vibration decoupling of a drive train (14) in a motor vehicle (16) having - a primary mass (68) for coupling to a crankshaft (66), - a secondary mass (70) rotatably mounted relative to the primary mass (68), - a spring element which elastically couples the primary mass (68) to the secondary mass (70); - a flange (10) connected to the secondary mass (70), which has a flange gate (28) with two ends (52, 54); Centrifugal pendulum (30) having a pendulum gate (42) with two ends (52, 54), wherein the centrifugal pendulum (34) on the flange (10) by means of a roller (44) is movably held by the roller (44) in both scenes (46) engages, characterized in that at the ends (52, 54) at least one of the scenes (46) each have an elastic damping material (50) is arranged, which has a lower material hardness than a material of the ends (52, 54 ) of the scenes (46).
  2. Dual mass flywheel (12) after Claim 1 , characterized in that the damping material (50) at the ends (52, 54) of the pendulum gate (42) is arranged.
  3. A twin mass flywheel (12) according to any one of the preceding claims, characterized in that the damping material (50) at the ends (52, 54) of the Flanschkulisse (28) is arranged.
  4. A twin mass flywheel (12) according to any one of the preceding claims, characterized in that the damping material (50) is formed wholly or partly from an elastomer.
  5. Dual mass flywheel (12) according to one of the preceding claims, characterized in that the damping material (50) has a shape corresponding to a forming groove (62) disposed at the respective ends (52, 54) and is inserted into the forming groove (62).
  6. A twin mass flywheel (12) according to any one of the preceding claims, characterized in that the damping material (50) at the respective ends (52, 54) on the material of the ends (52, 54) is thermally attached.
  7. A dual mass flywheel (12) according to any one of the preceding claims, characterized in that the damping material (50) is formed as a damping shoe having a shape corresponding to the respective ends (52, 54), the damping shoe resting on the respective end (52, 52). 54) is pushed.
  8. Dual-mass flywheel (12) according to one of the preceding claims, characterized in that the Flanschkulisse (28) of the flange (10) is provided in a first flange and the flange (10) has a further flange member having a further Flanschkulisse (28) with two Ends (52, 54) and is arranged at a distance coaxial and rotationally fixed to the first flange member, wherein the centrifugal pendulum (30) between the flange by means of the roller (44) is movably held by the roller (44) in the three scenes (46) intervenes.
  9. Dual-mass flywheel (12) according to one of the preceding claims, characterized in that the centrifugal force pendulum (30) has a further pendulum slide (42) with two ends (52, 54), in which a further roller (44) engages, wherein the centrifugal pendulum (30 ) is held movably on the flange (10) by means of the further roller (44) by the further roller (44) in the further pendulum gate (42) and in at least one further Flanschkulisse (28) corresponding thereto with two ends (52, 54) of the flange (10) engages.
  10. Motor vehicle (16) with an internal combustion engine (64) and a crankshaft (66), characterized in that a dual-mass flywheel (12) according to one of the preceding claims is coupled to the crankshaft (66) in order to drive a drive train (14) in the motor vehicle ( 16) with respect to torsional vibrations at least partially decouple.
DE102016225190.2A 2016-12-15 2016-12-15 Dual mass flywheel for torsional vibration decoupling and motor vehicle with such Pending DE102016225190A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018222244A1 (en) * 2018-12-19 2020-06-25 Zf Friedrichshafen Ag Torsional vibration damping arrangement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6244134B1 (en) 1997-11-27 2001-06-12 Mannesmann Sachs Ag Torsional vibration damper
DE69521982T2 (en) 1994-08-20 2002-04-04 Ap Tmf Ltd Two mass flywheel
DE69615982T2 (en) 1995-06-01 2002-06-13 Ap Tmf Ltd Two mass flywheel
DE102009042825A1 (en) * 2008-10-30 2010-05-12 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Torque transmission device for use in drive train of motor vehicle, has torsional vibration damper with two damper elements, where centrifugal force pendulum is provided with carrier part
DE102009053482A1 (en) * 2008-12-11 2010-09-02 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Centrifugal force pendulum for use in torsional vibration damper of drivetrain of motor vehicle, has roller bodies, tracks and/or counter tracks with surface made of material whose elastic modulus is smaller than elastic modulus of steel
DE102012211439A1 (en) * 2011-08-01 2013-02-07 Schaeffler Technologies AG & Co. KG Centrifugal pendulum for use in powertrain of internal combustion engine-driven motor vehicle, has large-diameter bushing section equipped for aligning collar portion of roller in pendulum roller conveyor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69521982T2 (en) 1994-08-20 2002-04-04 Ap Tmf Ltd Two mass flywheel
DE69615982T2 (en) 1995-06-01 2002-06-13 Ap Tmf Ltd Two mass flywheel
US6244134B1 (en) 1997-11-27 2001-06-12 Mannesmann Sachs Ag Torsional vibration damper
DE102009042825A1 (en) * 2008-10-30 2010-05-12 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Torque transmission device for use in drive train of motor vehicle, has torsional vibration damper with two damper elements, where centrifugal force pendulum is provided with carrier part
DE102009053482A1 (en) * 2008-12-11 2010-09-02 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Centrifugal force pendulum for use in torsional vibration damper of drivetrain of motor vehicle, has roller bodies, tracks and/or counter tracks with surface made of material whose elastic modulus is smaller than elastic modulus of steel
DE102012211439A1 (en) * 2011-08-01 2013-02-07 Schaeffler Technologies AG & Co. KG Centrifugal pendulum for use in powertrain of internal combustion engine-driven motor vehicle, has large-diameter bushing section equipped for aligning collar portion of roller in pendulum roller conveyor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018222244A1 (en) * 2018-12-19 2020-06-25 Zf Friedrichshafen Ag Torsional vibration damping arrangement

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