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
  • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
  • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
• • 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
  • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
  • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
  • F16F15/123—Wound springs
• • 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
  • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
  • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
  • F16F15/123—Wound springs
  • F16F15/12353—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
  • F16F15/1236—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates
  • F16F15/12366—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates acting on multiple sets of springs
• • 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
  • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
  • F16H2045/007—Combinations of fluid gearings for conveying rotary motion with couplings or clutches comprising a damper between turbine of the fluid gearing and the mechanical gearing unit
• • 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
  • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
  • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
  • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
  • F16H2045/0226—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers
• • 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
  • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
  • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
  • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
  • F16H2045/0226—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers
  • F16H2045/0231—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers arranged in series
• • 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
  • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
  • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
  • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
  • F16H2045/0247—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means having a turbine with hydrodynamic damping means
• • 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
  • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
  • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
  • F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
  • F16H2045/0284—Multiple disk type lock-up clutch

Definitions

• the invention relates to a motor vehicle drive train with an engine designed as a 4-cylinder engine, wherein the motor vehicle drive train has a Drehmomentwandler- device comprising a converter lockup clutch, a Torsionsschwingungs- damper and formed by a pump, a turbine and a stator Wandlertorus
• the torsional vibration damper has a first energy storage device and a second energy storage device, and wherein a first component connected in series with these two energy storage devices is provided between said first and second energy storage devices, and wherein the turbine wheel has an outer turbine shell which is connected to the first turbine first component is rotatably connected.
• a torque converter device which has a converter lock-up clutch, a torsional vibration damper and a converter torus formed by a pump wheel, a turbine wheel and a stator, and which is probably intended for a motor vehicle drive train.
• a first component connected in series with these two energy storage devices, between a first and a second energy storage device of the torsional vibration damper, appears to be provided with the outer turbine shell of FIG Turbine wheel is rotatably connected.
• the invention has for its object a four-cylinder engine having motor vehicle powertrain, which has a torque converter device to design so that it is well suited for motor vehicles in terms of its vibration behavior or torsional vibration behavior, which should provide a pleasant ride comfort ,
• a motor vehicle drive train having a 4-cylinder engine, or designed as a 4-cylinder engine engine.
• This internal combustion engine or this 4-cylinder engine has a maximum engine torque M mot , ma x-
• the motor vehicle drive train further has an engine output shaft or crankshaft, as well as a transmission input shaft.
• the motor vehicle drive train has a torque converter device.
• This torque converter device has a converter housing, which is coupled to the engine output shaft or crankshaft, preferably non-rotatably.
• the torque converter device has a converter lockup clutch, a torsional vibration damper and a converter torus formed by a pump wheel, a turbine wheel and a stator.
• This torsional vibration damper has a first energy storage device and a second energy storage device connected in series with this first energy storage device.
• the first energy storage device has one or more first energy stores or is formed by one or more first energy stores and the second energy storage device has one or more second energy stores or is formed by one or more second energy stores.
• a first component connected in series with these two energy storage devices is provided. This is in particular such that a torque can be transmitted to the second energy storage device by the first energy storage device via this first component.
• transducer torus a device referred to herein as a “transducer torus” is sometimes referred to as "(hydrodynamic torque) transducer”;
• (hydrodynamic torque) converter is partially used in prior publications also for devices comprising a torsional vibration damper, a converter lock-up clutch and a device formed by a pump impeller, a turbine wheel and a stator - in the diction of the present disclosure - Have a transducer torus.
• (hydrodynamic) torque converter device” and “converter torus” are used in the present disclosure for better distinctness.
• the turbine wheel has an outer turbine shell, which is rotatably connected to the first component.
• the Drehmomentwandler- device has a third component which, preferably non-rotatably, is coupled to the, in particular adjacent to the Drehmomentwandler- device, transmission input shaft.
• the third component is directly coupled to the transmission input shaft, in particular rotationally fixed.
• the third component via one or more intermediate components with the transmission input shaft, in particular rotatably coupled.
• the third component is connected to the second energy storage device and the transmission input shaft in Connected row, so that a torque can be transmitted from the second energy storage device via the third component to the transmission input shaft.
• the third component is therefore arranged in particular between the second energy storage device and the transmission input shaft.
• the first moment of inertia is thus composed, in particular, of the mass moment of inertia of the first component and the moments of inertia of one or more possible further components which are coupled to the first component such that their respective moment of inertia during the transmission of a torque via the first component (also ) counteracts a change in this transmitted via the first component torque.
• Such couplings may, for example - be rotatable couplings - in particular with respect to a rotation about the axis of rotation of the torsional vibration damper.
• the first component is preferably a flange or sheet metal, wherein it is particularly preferred that the outer turbine shell and / or an inner turbine shell and / or blades or a blading of the turbine wheel or the turbine is a component or a component of several components, the one or more coupled to the first component such that its or their mass moment of inertia flows into the first moment of inertia, in particular in each case as a summand of several summands.
• the second moment of inertia is therefore composed in particular of the mass moment of inertia of the third component and the mass moment of inertia of one or more possible further components, which are coupled to the third component so that their respective mass moment of inertia in the transmission of torque via the third component (also ) counteracts a change in this transmitted via the third component torque.
• Such couplings may, for example - be rotatable couplings - in particular with respect to a rotation about the axis of rotation of the torsional vibration damper.
• the motor vehicle drive train or the torque converter device or the torsional vibration damper or the first energy storage device is designed so that the spring rate [in the unit Nm / °] of the first energy storage device is greater than or equal to the product of the maximum Engine torque [in unit Nm] of 4-cylinder engine and factor 0,014 [1 / °] and less than or equal to the product of the maximum engine torque [in unit Nm] of 4-cylinder engine and factor 0,068 [1 / °] is.
• the motor vehicle drive train or the torque converter device or the torsional vibration damper or the second energy storage device is designed so that the spring rate [in the unit Nm / °] of the second energy storage device is greater than or equal to the product of the Maximum engine torque [in unit Nm] of the 4-cylinder engine and factor 0.035 [1 / °] and less than or equal to the product of the maximum engine torque [in unit Nm] of the 4-cylinder engine and the factor 0.158 [ 1 / °].
• the motor vehicle drive train or the torque converter device or the torsional vibration damper designed so that the quotient, on the one hand from the sum of the spring rate of the first energy storage device [in the unit Nm / rad] and the spring rate of the second Energy storage device [in unit Nm / rad] and on the other hand from the first mass moment of inertia [in the unit kg * m 2 ] is greater than or equal to 14037 N * m / (rad * kg * m 2 ) and less than or equal to 49348 N * m / (rad * kg * m 2 ).
• the motor vehicle drive train or the torque converter device or the torsional vibration damper or the transmission input shaft designed so that the quotient, on the one hand from the sum of the spring rate of the second energy storage device [in the unit Nm / rad] and the spring rate of the transmission input shaft [in the unit Nm / rad] and on the other hand from the second moment of inertia [in the unit kg * m 2 ] is greater than or equal to 1403677 N * m / (rad * kg * m 2 ) and less than or equal 5614708 N * m / (rad * kg * m 2 ).
• the transmission input shaft is designed so that the spring rate of the transmission input shaft is greater than or equal to 100 Nm / ° and less than or equal to 350 Nm / 0 .
• 120 Nm / 0 ⁇ C GE W ⁇ 300 Nm / 0 ;
• the spring rate c GE wder transmission input shaft is approximately in the range of 140 N * m / ° or 140 N * m / °.
• the spring rate c GE w of the transmission input shaft relate in particular to a torsional load or torsion load about the central longitudinal axis of the transmission input shaft, or is the spring rate c GE w of the transmission input shaft the spring rate of this transmission input shaft, which at a torsional load or torsional load around the central longitudinal axis the transmission input shaft acts or is given or appears in appearance.
• the transmission input shaft is rotatably supported, namely about its central longitudinal axis or axis of rotation.
• the torsional vibration damper is rotatable about an axis of rotation (of this torsional vibration damper).
• the axis of rotation of the torsional vibration damper corresponds in an advantageous embodiment of the axis of rotation of the transmission input shaft.
• a second component which is designed for example as a sheet or flange, provided that is connected in series with the first energy storage device and the first component.
• This second component is preferably provided between the converter bridging clutch and the first energy storage device, so that when the converter override clutch is closed, a torque transmitted via the latter can be transmitted via the second component to the first energy storage device.
• the torque converter lockup clutch can be connected to the converter housing so that it can not rotate or be fixed, so that when the converter lockup clutch is closed a torque can be transmitted from this converter housing via the converter lockup clutch.
• the converter lockup clutch may be designed, for example, as a multi-plate clutch. It may have a Anpressteil or one, for example, axially movable and, for example, hydraulically acted upon, piston, by means of which the multi-plate clutch can be closed. It can be provided, for example, that the second component is the Anpressteil or the piston of the multi-plate clutch or is rotatably connected to this Anpressteil or piston.
• the first component is in an advantageous design a sheet or flange.
• the third component is in an advantageous design a sheet or flange.
• the third component may, for example, form a hub or be non-rotatably coupled to a hub. This hub may for example be rotatably coupled to the transmission input shaft, or engage in rotation with the transmission input shaft.
• the second component or a component rotatably coupled thereto forms an input part of the first energy storage device. It can be provided in particular that this second component or a component rotatably coupled thereto - in particular on the input side - in the first energy storage of the first energy storage device or on (first) end faces of the first energy storage device on or attacks. Furthermore, it is provided in particular that the first component or one with this The first component rotatably connected component - and in particular on the output side - in the first energy storage of the first energy storage device or on (second, different from the first) front sides of the first energy storage of the first energy storage device or attacks.
• this first component or a component (optionally further) connected to this first component to be non-rotatably connected - in particular on the input side - into the second energy stores of the second energy storage device or on (first) end sides of the second energy stores of the second energy storage device - or attacks.
• the third component or a component rotationally fixedly connected to this third component - in particular on the output side - is inserted into the second energy stores of the second energy storage device or on (second, different from the first) end faces of the second energy storage device attacks.
• the first energy storage device has a plurality of first energy stores, or consists of a plurality of first energy stores.
• the first energy storage are according to a preferred design coil springs or Bogenfedem. It can be provided that all of these first energy stores are connected in parallel.
• the or all the first energy accumulators are distributed circumferentially or spaced away relative to the circumferential direction of the axis of rotation of the torsional vibration damper.
• first energy storage - relative to the circumferential direction of the axis of rotation of the torsional vibration - circumferentially distributed or spaced, which are circumferentially distributed or spaced arranged first energy storage designed as a bow or coil spring, and in receive in each case one or more further first energy stores.
• first energy storage designed as a bow or coil spring
• initially only those first energy stores store energy, which receive one or more further first energy stores in their interior, during a load of the first energy storage device increasing from the unloaded state, and the first recorded in this interior Energy storage store energy until the load of the first energy storage device is above a predetermined limit load or above a predetermined limit torque, or vice versa.
• the second energy storage device has a plurality of second energy stores, or consists of a plurality of second energy stores.
• the second energy storage are according to a preferred design coil springs or compression springs or straight springs. It can be provided that all of these second energy stores are connected in parallel.
• the or all second energy stores are circumferentially distributed or spaced apart relative to the circumferential direction of the axis of rotation of the torsional vibration damper.
• a plurality of second energy stores - circumferentially distributed or spaced arranged circumferentially of the axis of rotation of the torsional vibration damper are designed as compression springs or straight springs or coil springs, and in each case receive one or more further second energy stores in their interior.
• initially only those second energy stores store energy that absorb one or more further second energy stores in their interior when the load of the second energy storage device increases progressively from the unloaded state, and the second recorded in this interior Energy storage store energy until the load of the second energy storage device is above a predetermined limit load or above a predetermined limit torque, or vice versa.
• the first energy storage or the first energy storage device is arranged radially outside the second energy storage or the second energy storage device; this relates in particular to the radial direction of the axis of rotation of the torsional vibration damper.
• the spring rate of the first energy storage device is in particular the spring rate or substitute spring rate which acts or occurs in torque loads of this first energy storage device, in particular for torque loads acting on the first energy storage device about the axis of rotation of the torsional vibration damper.
• the spring rate of the first energy storage device is determined in particular by the spring rates of the first energy storage and their arrangement or their shading;
• the spring rate of the first energy storage device is thus in particular a substitute spring rate, which is determined by spring rates of the first energy store and their arrangement or their interconnection.
• the first energy store in an advantageous design are connected in parallel; but it may also be provided, for example, that the first energy storage are connected so that they form a parallel circuit in principle, wherein in the thus formed parallel branches of this parallel circuit first energy storage are connected in series.
• the spring rate of the second energy storage device is in particular the spring rate or substitute spring rate which acts or occurs in torque loads of this second energy storage device, in particular for torque loads which act on the second energy storage device about the axis of rotation of the torsional vibration damper.
• the spring rate of the second energy storage device is determined in particular by the spring rates of the second energy store and their arrangement or their interconnection;
• the spring rate of the second energy storage device is therefore in particular a substitute spring rate, which is determined by spring rates of the second energy store and their arrangement or interconnection.
• the second energy storage devices are connected in parallel in an advantageous design; but it can also be provided, for example, that the second energy storage are connected so that they form a parallel circuit in principle, wherein in the parallel branches of this parallel circuit second energy storage are connected in series.
• the first moment of inertia relates in particular to the axis of rotation of the torsional vibration damper.
• the first component is for example a sheet metal.
• the outer turbine shell is rotatably connected to the first component by means of one or more driver parts.
• the moments of inertia of the component, in particular the first component, or of the components, over which or which is a torque from the first energy storage devices of the first energy storage device to the second energy storage devices of the second energy storage device or connected between the first energy storage devices of the first energy storage device and the second energy storage devices of the second energy storage device determine or co-determine the first mass moment of inertia each in particular on the axis of rotation of the torsional vibration damper.
• the second moment of inertia relates in particular to the axis of rotation of the torsional vibration damper.
• the third component is for example a sheet metal.
• the motor vehicle drive train or the torque converter device or the torsional vibration damper or the first energy storage device is preferably designed such that: (M mot , max [Nm] * 0.02 * 1 / °) ⁇ C 1 ⁇ (M mot , max [Nm] * 0.06 * 1 / °); or (M mot , m ax [Nm] * 0.03 * 1 / °) ⁇ C 1 ⁇ (M mot , max [Nm] * 0.05 * 1 / °).
• the motor vehicle drive train or the torque converter device or the torsional vibration damper or the second energy storage device is designed such that the following applies: (M mot , max [Nm] * 0.04 * 1 / °) ⁇ C 2 ⁇ (M mot , ma ⁇ [Nm] * 0.15 * 1 / °); or (M motima ⁇ [Nm] * 0.05 * 1 / °) ⁇ C 2 ⁇ (M mot , ma ⁇ [Nm] * 0.13 * 1 / °); or that: (M mot , max [Nm] * 0.06 * 1 / °) ⁇ C 2 ⁇ (M mot , m a x [Nm] * 0.1 * 1 / °).
• the motor vehicle drive train or the torque converter device or the torsional vibration damper is designed such that the following applies:
• the motor vehicle drive train or the torque converter device or the torsional vibration damper or the transmission input shaft is designed so that the following applies:
• Fig. 1 is a schematic view of an exemplary inventive
• Automotive powertrain 2 shows a section of an exemplary motor vehicle according to the invention
• Powertrain having a first exemplary hydrodynamic torque converter device
• FIG. 3 shows a section of an exemplary motor vehicle according to the invention
• Fig. 5 is a spring (rotary) mass equivalent circuit of a portion of an exemplary automotive powertrain according to the invention for the case of the closed lockup clutch.
• the motor vehicle drive train 2 has an internal combustion engine 250, as well as a drive shaft or engine output shaft or crankshaft 18, which can be rotationally driven by the internal combustion engine 250.
• the internal combustion engine 250 has exactly four cylinders 252 or is a 4-cylinder engine 250.
• the 4-cylinder engine 250 has a maximum engine torque M mo t, ma ⁇ or can introduce at most one moment into the drive train 2, which corresponds to this maximum engine torque M mot , ma ⁇ .
• the motor vehicle drive train 2 has a torque converter device 1, which is designed in accordance with one of the designs, which are explained with reference to FIGS. 2 to 4.
• the motor vehicle drive train 2 also has a transmission 254, which is, for example, an automatic transmission. Furthermore, the motor vehicle drive train 2 may have a transmission output shaft 256, a differential 258 and one or more drive axles 260.
• the motor vehicle drive train 2 further has a transmission input shaft 66 between the torque converter device 1 and the transmission 254.
• the Drehmomentwandler- device 1 and a component, such as hub 64, this torque converter device 1 is rotatably connected to this transmission input shaft 66.
• the engine output shaft or crankshaft 18 is non-rotatable with the converter housing 16 of this torque converter device 1 coupled. Thus, a torque can be transmitted from the drive shaft or the engine output shaft or crankshaft 18 via the torque converter device 1 to the transmission input shaft 66.
• FIGS. 2 to 4 show various exemplary hydrodynamic torque converter devices 1 which may be provided in an exemplary motor vehicle drive train 2 according to the invention or in the motor vehicle drive train 2 according to FIG. 1.
• FIGS. 2 to 4 are part of an exemplary motor vehicle drive train 2 according to the invention which has a 4-cylinder engine 250 (not shown in FIGS. 2 to 4) or not in FIGS. 2 to 4 shown internal combustion engine 250, which is designed as a 4-cylinder engine and thus has four cylinders 252.
• the hydrodynamic Drehmomentwandler- device 1 comprises a torsional vibration damper 10, one of a pump 20, a turbine 24 and a stator 22 formed Wandlertorus 12 and a lockup clutch 14 on.
• the torsional vibration damper 10, the transducer torus 12 and the lockup clutch 14 are accommodated in a converter housing 16.
• the converter housing 16 is substantially non-rotatably connected to a drive shaft 18, which is in particular the crankshaft or engine output shaft of an internal combustion engine.
• the transducer torus 12 has - as mentioned - a pump or an impeller 20, a stator 22 and a turbine or a turbine wheel 24, which cooperate in a conventional manner.
• the transducer torus 12 has a transducer interior space or a torus interior 28, which is provided for receiving oil or for an oil flow.
• the turbine wheel 24 has an outer turbine shell 26, which forms a directly adjacent to the inner end of the torus 28 and provided for a boundary of the Torusinneren 28 wall portion 30.
• the turbine wheel 24 in known manner an inner turbine shell 262 and (turbines) blades on.
• An extension 32 of the outer turbine shell 26 adjoins the wall section 30 immediately adjacent to the interior of the torus 28.
• This extension 32 has a straight or annular shaped section 34.
• This straight or annular shaped portion 34 of the extension 32 may be, for example, that it is substantially straight in the radial direction of the axis of rotation 36 of the torsional vibration damper 10 and - in particular as an annular portion - in a plane perpendicular to the axis of rotation 36 level or this spans.
• the torsional vibration damper 10 has a first energy storage device 38 and a second energy storage device 40.
• the first energy storage device 38 and / or the second energy storage device 40 are in particular spring devices.
• first energy storage device 38 provision is made for the first energy storage device 38 to have a plurality of, in particular spaced-apart, first energy stores 42, such as spiral springs or bow springs, in a circumferential direction extending around the axis of rotation 36 or formed by these becomes. It can be provided that all first energy storage 42 are designed identically. It can also be provided that differently designed first energy store 42 are provided.
• the spring rate ci [in the unit Nm / °] of the first energy storage device 38 is greater than or equal to the product of the maximum engine torque M mot , m a x [in the unit Nm] of the A-cylinder engine 250 and the factor 0.014 [1 / °] and less than or equal to the product of the maximum engine torque [in the unit Nm] of this 4-cylinder engine 250 and the factor 0.068 [1 / O ].
• max [Nm] is the maximum engine torque of the internal combustion engine or 4-cylinder engine 250 of the drive train 2 in the unit “Newton-by-meter” (Nm), and where C 1 : the spring rate of the first energy storage device 38 in the unit “Newton times meters divided by degrees "(Nm / °).
• C 1 the spring rate of the first energy storage device 38 in the unit “Newton times meters divided by degrees "(Nm / °).
• the values or ranges given may also be, for example, as described elsewhere in this disclosure.
• the second energy storage device 40 comprises a plurality of, for example, each as a spiral spring or (compression spring or straight spring designed second energy storage 44.
• a plurality of second energy storage 44 are circumferentially - with respect to the circumferential direction of the axis of rotation It can be provided that the second energy stores 44 are each designed identically, but different second energy stores 44 can also be configured differently.
• the spring rate C 2 [in the unit Nm / °] of the second energy storage device 40 is greater than or equal to the product of the maximum engine torque M mot , max [in the unit Nm] of the A-cylinder engine 250 and the factor 0.035 [1 / °] and less than or equal to the product of the maximum engine torque M mo t, ma x [in the unit Nm] of the 4-cylinder engine 250 and the factor 0.158 [1 / °].
• the second energy storage device 40 is arranged radially within the first energy storage device 38 with respect to the radial direction of the rotation axis 36.
• the first 38 and the second energy storage device 40 are connected in series.
• the torsional vibration damper 10 has a first component 46, which is arranged between the first 38 and the second energy storage device 40 or connected in series with the energy storage devices 38, 40. It is therefore provided in particular that - for example, with the converter lock-up clutch 14 closed - a torque from the first energy storage device 38 via the first component 46 to the second energy storage device 40 is transferable;
• the first component 46 may also be referred to as an intermediate part 46, which will also be done below.
• the outer turbine shell 26 is connected to this intermediate part 46 such that a load, in particular torque and / or force, can be transmitted from the outer turbine shell 26 to the intermediate part 46 is.
• a driver part 50 is provided between the outer turbine shell 26 and the intermediate part 46 or in the load flow, in particular torque or force flow, between the outer turbine shell 26 and the intermediate part 46. It can also be provided that the extension 32 also forms the intermediate part 46 and / or the driver part 50, or assumes its function. It can also be provided that the driver part 50 forms a first component or intermediate part, which is connected in series in the torque flow between the energy storage devices 38, 40. It is further provided that along the load transfer path 48, via which a load or a torque from the outer turbine shell 26 is transferable to the intermediate part 46, at least one connecting means 52, 56 and 54 is provided.
• Such a connecting means 52, 56 and 54 may, for example, be a plug connection or a rivet connection (see reference 56 in Figures 2 to 4) or a welded connection (see reference 52 in Figures 2 to 4) or the like be. It should be noted that in Fig. 4 at the point where the welded joint 52 is given, in addition - to show an alternative design possibility - a rivet or bolt connection 54 is located. This should also clarify that said connecting means may also be designed differently or combined differently.
• the extension 32 of the outer turbine shell 26 is rotatably coupled to the driver part 50 via a connecting means 52 designed as a welded connection (which alternatively can be a rivet or bolt connection according to FIG. 4), and this driver part 50 rotatably coupled to the intermediate part 46 in each case via a connecting means 56 designed as a rivet or bolt connection.
• a connecting means 52 designed as a welded connection (which alternatively can be a rivet or bolt connection according to FIG. 4)
• this driver part 50 rotatably coupled to the intermediate part 46 in each case via a connecting means 56 designed as a rivet or bolt connection.
• all connecting means 52, 54, 56 by means of which along the load transfer path 48 between the outer turbine shell 26 and the intermediate part 46 adjacent components (such as extension 32 and driver part 50 and driver part 50 and intermediate part 46) are connected, of which are spaced directly adjacent to the torus interior 28 adjacent wall portion 30 of the outer turbine shell 26.
• This allows - at least according to the embodiments - that the bandwidth of possible connecting means is increased.
• a second component 60 and a third component 62 Connected in series with the first energy storage device 38, the second energy storage device 40 and provided between these two energy storage devices 38, 40 intermediate part 46 are a second component 60 and a third component 62.
• the second component 60 forms an input part of the first energy storage device 38 and the third Component 62 forms an output part of the second energy storage device 40.
• a load or torque introduced from the second component 60 into the first energy storage device 38 can thus be transferred to the third component 62 via the intermediate part 46 and the second energy storage device 40 on the output side of this first energy storage device 38 ,
• the third member 62 engages to form a rotationally fixed connection in a hub 64, which in turn is rotatably coupled to an output shaft 66 of the torque converter device 1, which is for example a transmission input shaft 66 of a motor vehicle transmission. Alternatively, however, it may also be provided, for example, that the third component 62 forms the hub 64.
• the outer turbine shell 26 is radially by means of a support portion 68 supported on the hub 64.
• the support portion 68 which is supported in particular radially on the hub 64, is designed substantially sleeve-shaped.
• the addressed radial support of the outer turbine shell 26 by means of the support section 68 is such that supporting forces acting thereon on the outer turbine shell 26 are not conducted via the first or second energy storage device 38, 40 from the support section 68 to the outer turbine shell 26.
• the support portion 68 is rotatable relative to the hub 64. It may be provided that between the hub 64 and the support portion 68, a slide bearing or a plain bearing or a rolling bearing or the like is provided for the radial support. Furthermore, appropriate bearings may be provided for axial support.
• connection between the outer turbine shell 26 and the intermediate part 46 is such that a torque transmittable from the outer turbine shell 26 to the intermediate part 46 can be transmitted from the outer turbine shell 26 to this intermediate part 46 without along the corresponding load transfer path 48th one of the energy storage devices 38, 40 is provided.
• This torque transmission from the outer turbine shell 26 to the intermediate part 46 (via the load transmission path 48) can thus be effected in particular by means of a substantially rigid connection.
• two connecting means are respectively provided along the load or force transmission path 48 between the outer turbine shell 26 and the intermediate part 46, specifically a first connecting means 52 or 54 and a second connecting means 56.
• first connecting means 52 or 54 and second connecting means 56.
• second connecting means 56 can be provided in the circumferential direction and / or preferably provided.
• the or the first connecting means 52 and 54 (hereinafter is for simplicity of "the first connecting means 52" spoken) connect - in particular rotationally fixed - the extension 32 with the driver part 50 and the second or the connecting means 56 (hereinafter Simplification of the second connecting means 54 spoken) connect - in particular rotationally fixed - the driver part 50 with the intermediate part 46th
• the sleeve-like support region 68 may, for example, be a radially inward-lying section of the driver part 50, based on the radial direction of the axis of rotation 36.
• the converter lock-up clutch 14 is formed in the designs according to FIGS. 2 to 4 in each case as a multi-disc clutch and has a first disk carrier 72, of which first blades 74 are rotatably received, and a second disk carrier 76, of which second blades 78 are rotatably received.
• the first disk carrier 72 is relatively movable relative to the second disk carrier 76, in such a way that the first disk carrier 72 can be rotated relative to the second disk carrier 76.
• the second plate carrier 76 is here - with respect to the radial direction of the axis 36 - disposed radially within the first disc carrier 72, but this may be the other way round.
• the first plate carrier 72 is fixedly connected to the converter housing 16.
• the multi-plate clutch 14 on a piston 80 which is arranged axially displaceable and for actuating the multi-plate clutch 14 - for example, hydraulically - can be acted upon.
• the piston 80 is fixed or rotatably connected to the second plate carrier 76, which may be effected for example by means of a welded connection.
• First 74 and second blades 78 alternate - seen in the longitudinal direction of the axis of rotation 36 - from.
• this disk set 79 Upon actuation of the disk set 79 formed by the first 74 and second disks 78 by means of the piston 80, this disk set 79 is supported on the side of the disk set 79 opposite the piston 80 at a portion of the inside of the converter housing 16. Between adjacent lamellae 74, 78 and on both sides of the end of the disk set 79 friction linings 81 are provided, which are held for example on the fins 74 and / or 78. The friction linings 81, which are provided on the end side of the disk set 79, can also be held on one side and / or on the other side on the inside of the converter housing 16 or on the piston 80.
• the piston 80 is formed integrally with the second component 60, that is, the input part of the first energy storage device 38.
• the piston 80 is non-rotatably or fixedly connected to the second component 60 and the input part of the first energy storage device 38, wherein this solid connection takes place here by way of example via a weld.
• the rotationally fixed connection can also be done in other ways;
• the piston 80 and the input part 60 of the first energy storage device 38 may also be designed as separate parts which are fixedly connected or non-rotatably connected to one another, for example via a weld or a rivet or bolt.
• FIG. 1 the piston 80 and the input part 60 of the first energy storage device 38 may also be designed as separate parts which are fixedly connected or non-rotatably connected to one another, for example via a weld or a rivet or bolt.
• another suitable connection between the piston 80 and the input part 60 may be provided instead of the welded connection for producing this (fixed or rotationally fixed) connection.
• welded connection for producing this (fixed or rotationally fixed) connection.
• bolt or rivet or connector or alternatively, the piston 80 with the input part 60 can also be made in one piece from one part.
• the piston 80 or the second component 60, the first component or the intermediate part 46, the driver part 50 and the third component 62 are each formed by metal sheets.
• the second component 60 is in particular a flange.
• the first component 46 is in particular a flange.
• the third component 62 is in particular a flange.
• the plate thickness of the driver part 50 is greater than the plate thickness of the piston 80 or of the input part 60 of the first energy storage device 38. Furthermore, it can be provided in the exemplary embodiments according to FIGS. 2 to 4 that the mass moment of inertia of the driver part 50 is greater than the moment of inertia of the piston 80 and the input part 60 and the unit of these parts 60, 80 is.
• a kind of housing 82 is formed, which extends - relative to the radial direction and the axial direction of the axis of rotation 36 - at least partially both sides axially and radially outside to the respective first energy storage 42.
• this housing 82 is arranged on the driver part 50.
• the above-mentioned rotationally fixed arrangement on the driver part 50 or on the outer turbine shell 26 under vibration aspects is more advantageous than, for example, a rotationally fixed arrangement on the second component 60.
• the housing 82 has here a lid 264, which is welded, for example.
• the first energy stores 42 can each be supported on the addressed housing 82 for friction reduction via a rolling element, such as balls or rollers, having means 84, which can also be referred to as roller skate 84.
• rolling elements such as balls or rollers having means 84 for supporting the first energy storage 42 and for reducing friction in the designs according to FIGS. 2 and 3 in be provided accordingly.
• a sliding shell or a sliding shoe 94 is instead provided instead of such a roller skate 84 for the low-friction support of the first energy store 42.
• a second rotation angle limiting device 92 is provided for the second energy storage device 40, by means of which the maximum angle of rotation or relative rotation angle of the second energy storage device 40 or the input part of the second energy storage device 40 relative to the output part of the second energy storage device 40 is limited.
• the maximum angle of rotation of the second energy storage device 40 is limited by means of this second Verduswinkelbegrenzungs adopted 92 such that prevents the second energy storage 44, which are in particular springs, go at a correspondingly high torque load on block.
• the second Verduswinkelbegrenzungs issued 92 is - as shown in FIGS.
• a first Verwarwinkelbegrenzungsein- direction for the first energy storage device 38 may be provided by means of which the maximum angle of rotation of the first energy storage device 38 is limited such that an on-block walking the first, especially in each case designed as a spring, energy storage 42 is prevented.
• the second energy storage 44 are straight (pressure) springs and the first energy storage 42 bow springs
• a second VerFDwin - Kelbegrenzungs is provided for the second energy storage device 40, since in such designs in an on-block walking the risk of damage in bow springs is less than in straight springs, and an additional, first Verfwinkelbe- grenzungs adopted the number of components or the manufacturing cost would increase.
• the angle of rotation of the first energy storage device 38 is limited to a maximum first twist angle and the twist angle of the second energy storage device 40 is limited to a maximum second twist angle, wherein the first energy storage device 38 reaches its maximum first twist angle when a first limit torque is applied to the first energy storage device 38 and the second energy storage device 40 reaches its maximum second twist angle when a second limit torque is applied to this second energy storage device 40, this first limit torque being less than this second limit torque is.
• first energy store 42 at the first limit torque go to block, so that the first energy storage device 38 reaches its maximum first twist angle, and is effected by means of a second VerFDwin- kelbegrenzungs adopted for the second energy storage device 40 that the second energy storage device 40 at a second Limit torque reaches its maximum second angle of rotation, this maximum second angle of rotation is achieved when the second VerFDwinkelbegrenzungsISS reaches a stop position.
• This angle of rotation which is limited by the respective maximum first or second angle of rotation, in particular in the manner mentioned above, can change in particular in that the energy stores 42 and 44 of the respective energy storage device 38 or 40 absorb energy or deliver stored energy.
• the piston 80 or the second component or the input part 60 of the first energy storage device 38 forms a plurality of circumferentially distributed tabs 86, each having a non-free end 88 and a free end 90 , and which are provided for the end-side, input-side load of a respective first energy store 42.
• the non-free end 88 is - with respect to the radial direction of the axis of rotation 36 - arranged radially within the free end 90 of the respective tab 86. As shown in FIGS.
• the radial extent of the driver part 50 can be greater than the average radial distance of the first energy store or accumulators 42 from the second energy store or accumulators 44 be.
• the transmission input shaft 66 is designed such that the spring rate C GE W of the transmission input shaft 66 is in the range of 100 Nm / ° to 350 N * m / °.
• the values or ranges given may also be, for example, as described elsewhere in this disclosure.
• the spring rate C GEW of the transmission input shaft 66 is in particular that which acts when the transmission input shaft 66 is subjected to torsion about its central longitudinal axis.
• the motor vehicle drive train 2 or the torque converter device 1 or the torsional vibration damper 10 is designed such that the quotient, on the one hand, of the sum (C 1 HC GEW ) the spring rate C 2 of the second energy storage device 40 [in the unit Nm / rad] and the spring rate C GEW the transmission input shaft 66 [in the unit Nm / rad] and on the other hand from the second moment of inertia J 2 [in the unit kg * m 2 ] is greater than or equal to 1403677 N * m / (rad * kg * m 2 ) and less than or equal to 5614708 N * m / (rad * kg * m 2 ).
• first moment of inertia J 1 to essentially be composed of the mass moments of inertia of the following components: outer turbine shell 26 with extension 32, inner turbine shell 262, turbine blades or blading of the turbine or turbine of the turbine wheel 24, driver part 50 with housing 82 and housing cover 264, first component 46, first or first connection means 52 or 54, second or second connection means 56, sliding shell (s) 94 or skate (s) 84, optionally proportionate bow springs 42, optionally proportionate compression springs 44, optionally proportionately oil or oil, which is Bogenfederkanal or the bow spring channels, and optionally proportionately oil or oil with respect to the turbine or which is in the turbine.
• the moments of inertia relate in particular to the axis of rotation 36.
• the second moment of inertia J 2 to essentially be composed of the mass moments of inertia of the following components: flange or third component 62, hub 64, which, moreover, also integrally with the Flange 62 may be formed, and optionally proportionately gear input shaft 66, and optionally proportionate compression springs 44 and optionally not shown disc spring for a targeted hysteresis, and optionally shaft securing rings and / or sealing elements.
• FIG. 5 shows a spring (rotary) mass equivalent circuit diagram of a part of an exemplary motor vehicle drive train 2 according to the invention or the design according to FIG. 1 with a design according to FIG. 2 or according to FIG. 3 or according to FIG. 4 for which Case of the closed lockup clutch.
• the system can be seen, in particular ideal, as a series connection with a first, motor-side (rotary) mass 266, a clutch 268, an input side of a first spring 272 between the clutch 268 and this first spring 272 interconnected (two) (rotary) Mass 270, the already mentioned first spring 272, a connected between the first 272 and a second spring 276 (third) (rotary) mass 274, the already mentioned second spring 276, a connected between this second spring 276 and a third spring 280 ( fourth) (rotating) mass 278, and the already mentioned third spring 280th
• the section formed by the series connection of the first spring 272, the (third) (rotary) mass 274, the second spring 276, the (fourth) (rotary) mass 278 and the (third) spring 280 forms - particularly ideally considered - a Spring (rotary) mass equivalent circuit diagram for the first energy storage device 38, the connection of the first 38 and second energy storage device 40, the second energy storage device 40, the connection of the second energy storage device 40 with the transmission input shaft 66, and the transmission input shaft 66th
• the eigenmodes of this torsional vibration system are excited because of the rotational uniformity of the internal combustion engine 250.
• Each eigenform of the system has an associated natural frequency.
• this natural frequency with the rotational frequency of the internal combustion engine 250th covers the system resonates, ie with maximum amplitude. It is often useful to avoid high amplitudes, because they can be noticeable as disturbing vibrations and noises.
• the natural frequencies of the system are dependent on the torsional stiffnesses and rotational masses in the system.
• the leading parts are in particular designed so that between the torsion dampers or energy storage devices 38, 40, a large mass is formed or a large moment of inertia.
• the leading parts between torque converter lock-up clutch 14 and torsion damper 10 and between the torsion damper and transmission input shaft are designed so that the smallest possible masses arise here.
• the natural frequencies of the system are thereby excited in the operating range of the internal combustion engine 250 to a small extent.
• a significant improvement of the double damper or torsional vibration damper 10 is achieved by the design of a torsion damper or energy storage device especially for the partial load range (low torque), so that in this area a very low spring stiffness of the torsion damper or the energy storage device can be realized.
• the acting deflection forces of elastic element to the housing (shell) are lower, also the mass of the spring element is lower and thereby generates (reduced centrifugal force) less friction to the housing (shell). This improves the insulation.
• hydrodynamic torque converter device Automotive powertrain torsional vibration damper transducer torque converter lockup clutch converter housing drive shaft, such as engine output shaft of an internal combustion engine pump or impeller stator turbine external turbine shell torus internal wall portion of 26 extension to 30 of 26 straight section of 32 or annular section of 32 rotation axis of 10 first energy storage device second energy storage device first energy storage second energy storage first component of load transfer path driver part or welding connection between 32 and 50 in 48 connecting means or bolt or rivet connection between 32 and 50 in 48 connecting means or bolt or rivet connection between 50 and 46 in 48 second component third component hub output shaft, transmission input shaft support portion first lambda carrier of 14 first lamella of 14 76 second lamb carrier of 14

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• 2006
  • 2006-10-16 KR KR1020087011135A patent/KR20080065648A/ko not_active Application Discontinuation
  • 2006-10-16 DE DE112006002801T patent/DE112006002801A5/de active Pending
  • 2006-10-16 US US12/084,741 patent/US20090156317A1/en not_active Abandoned
  • 2006-10-16 EP EP06828485A patent/EP1948974A1/de not_active Withdrawn
  • 2006-10-16 WO PCT/DE2006/001816 patent/WO2007054050A1/de active Application Filing
  • 2006-10-16 JP JP2008539224A patent/JP2009515113A/ja active Pending
  • 2006-10-16 CN CNA2006800420641A patent/CN101305211A/zh active Pending

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