WO1998039579A2 - Dispositif de reduction des irregularites de rotation et procede correspondant - Google Patents

Dispositif de reduction des irregularites de rotation et procede correspondant Download PDF

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Publication number
WO1998039579A2
WO1998039579A2 PCT/EP1998/001299 EP9801299W WO9839579A2 WO 1998039579 A2 WO1998039579 A2 WO 1998039579A2 EP 9801299 W EP9801299 W EP 9801299W WO 9839579 A2 WO9839579 A2 WO 9839579A2
Authority
WO
WIPO (PCT)
Prior art keywords
active
unit
active unit
rotational
electrical machine
Prior art date
Application number
PCT/EP1998/001299
Other languages
German (de)
English (en)
Other versions
WO1998039579A3 (fr
Inventor
Andreas GRÜNDL
Bernhard Hoffmann
Thomas Pels
Klaus Revermann
Holger Riekenbrauck
Klaus-Peter Zeyen
Original Assignee
Isad Electronic Systems Gmbh & Co. Kg
Gründl und Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Isad Electronic Systems Gmbh & Co. Kg, Gründl und Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen filed Critical Isad Electronic Systems Gmbh & Co. Kg
Priority to EP98912451A priority Critical patent/EP0965007A2/fr
Publication of WO1998039579A2 publication Critical patent/WO1998039579A2/fr
Publication of WO1998039579A3 publication Critical patent/WO1998039579A3/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/18—Suppression of vibrations in rotating systems by making use of members moving with the system using electric, magnetic or electromagnetic means

Definitions

  • the invention relates to an apparatus and a method for reducing rotational irregularities.
  • Rotational irregularities can e.g. in an internal combustion engine result from the gas and mass forces acting in the engine.
  • this leads to high noise pollution and high wear. They also reduce driving comfort.
  • the most common conventional measure is aimed at passive damping of the rotational uniformities. It consists in using a flywheel to increase the moment of inertia of the rotating part of the engine.
  • a device for actively reducing rotational irregularities is shown, for example, in DE 44 23 577 AI.
  • a first unit of action of an electrical machine - there a sector machine - is with a shaft of an internal combustion engine, and a second unit of rotation is supported, for example, against a housing of the combustion engine. otors.
  • the effect of this device is based on the fact that the electrical machine applies an alternating torque to the shaft, which counteracts the torques which cause the rotational irregularities and thereby reduces them.
  • the motor housing absorbs the reaction torques.
  • EP 0 427 568 B1 proposes to counteract positive rotational irregularities (i.e. rotational states above the speed average) with an electrical machine connected to the shaft of an internal combustion engine and to store the electrical energy obtained in this way in a capacitor and a battery.
  • DE-A-32 30 607 discloses a system in which positive and negative rotational nonuniformities are counteracted with an electrical machine, the energy obtained in the case of positive rotational nonuniformity being temporarily stored in a battery and then used to counteract the negative rotational nonuniformity.
  • Patent Abstracts of Japan, Volume 7, (M-251), January 23, 1982 & JP-58 126 434 (NISSAN) discloses a system for active vibration damping, in which the energy obtained is temporarily stored in a capacitor and then removed again becomes.
  • the invention aims to provide a completely new device for reducing rotational irregularities of a non-uniformly rotating unit, in particular an internal combustion engine. This also includes the provision of a corresponding procedure. It achieves this goal according to claim 1, by an electrical machine which has at least two relatively rotatable active units, the first of which is coupled to the non-uniformly rotating unit, and the second is freely rotatable, and which generates the relative torques between the active units counteracting the rotational nonuniformities, the support being provided against the freely rotatable inertial mass of the second active unit, the generation of the relative torques taking place in an active manner so that the angular momentum transmitted to the freely rotatable inertial mass of the second active unit is greater in the case of rotationally uniformity , as the angular momentum that is generated by simply coupling the second active unit would be transferred to the first knitting unit.
  • inertial mass means the inertia of the second active unit with respect to rotary movements, which is also
  • the invention is based on a different principle of operation than the German Patent 325 363 mentioned at the outset.
  • the "electrical machine” only seeks passively to make a relative rotational speed between the shaft and the flywheel disappear. This means that only the damping effect can be achieved that would also be achievable with the rotationally fixed coupling of the flywheel.
  • the electric machine is controlled so that it actively generates or increases relative rotational speeds between the shaft and the flywheel.
  • the centrifugal mass of the shaft can draw torques of virtually any size or impress it. This achieves a damping effect that goes far beyond what can be achieved with a non-rotatable coupling of the flywheel and i.a. an almost complete compensation of the rotational irregularities allowed.
  • An electrical machine is in particular a rotary machine that can be operated by a motor and a generator. It is, for example, a commutator machine ("DC machine") or a three-phase machine ("three-phase machine”).
  • a rotating field machine is understood to mean a machine, in particular a commutatorless machine, in which a magnetic rotating field occurs, which preferably sweeps over 360 °.
  • the machine can in particular be designed as an asynchronous machine or as a synchronous machine.
  • the Machine has - corresponding to the rotor and the stator of a conventional electrical machine - two active units that are rotatable relative to each other.
  • a relative torque is generated between the active units by a corresponding variation of the rotating field.
  • the variable currents and voltages required for this can be generated, for example, with the aid of an inverter, which can bring about generator and motor operation.
  • the first knitting unit is coupled to the non-uniformly rotating unit, more precisely to a shaft (or another rotating part) which has the rotational irregularity caused by the unit in its rotation.
  • this can be a shaft coupled directly or indirectly to a drive motor, for example an internal combustion engine, for example via pinions, V-belts, etc.
  • rotational irregularities occur due to the acting gas and mass forces of the individual reciprocating pistons.
  • relatively large second-order rotational irregularities ie twice the rotational frequency of the engine
  • rotational irregularities at higher orders and stochastically occurring irregularities.
  • a rotary piston engine for example a Wankel engine
  • the device according to the invention is not only suitable for reducing rotational nonuniformities which result from such a drive motor (for example a motor vehicle, rail vehicle, ship or a machine tool); Rather, they can also be those that arise in a drive train - that is, between the drive motor and the output point - due to cardan joints, torsional vibrations of shafts or gear wear. Shafts (or turned parts) that have rotational nonuniformities from such sources are also to be included here under the term "aggregate".
  • the reduction in the rotational irregularities is brought about by the fact that the electrical machine applies a varying torque to the non-uniformly rotating unit. Over time, this corresponds essentially to the torque fluctuations leading to the rotational irregularities, but is directed in the opposite direction.
  • the second knitting unit can be freely rotated.
  • Freely rotatable is also understood to mean the case in which the second active unit is coupled to the outside world in such a way that it is still essentially freely rotatable. Ultimately, it is only important that - as explained in more detail below - the support against the inertial mass of the second active unit.
  • the second active unit - for example the stator - is active to reduce rotational nonuniformity; for example, it is rotatably coupled to the housing of the drive motor or the vehicle chassis.
  • the application of torques to the non-uniformly rotating unit takes place against the essentially freely rotatable inertial mass of the second active unit. It is advantageous if it rotates in the same direction as the non-uniformly rotating unit.
  • a braking torque is exerted on the unit to brake it.
  • the second knitting unit with the inertial mass can rotate faster than the first knitting unit with the unit.
  • the second knitting unit with the inertial mass can turn slower than the first knitting unit with the unit.
  • the energy generated when the unit is braked is thus stored in the form of kinetic energy in the second active unit.
  • the second active unit is braked when the unit accelerates.
  • the energy required to accelerate the unit is taken from the kinetic energy of the second active unit.
  • the inertial mass of the second active unit thus stores the rotational non-uniformity energy in the form of kinetic energy.
  • the energy generated when braking the unit is stored in the form of electrical energy (e.g. in a capacitor or a battery); and the for
  • the energy required to accelerate is taken from the electrical energy store.
  • the electrical machine has the function of a controllable coupling between two rotating parts, and thus essentially not the function of a device for converting kinetic to electrical energy.
  • the device according to the invention thus leads, for example when used in a vehicle drive system, to: low noise pollution; - low wear; and at the same time low energy consumption.
  • a device is advantageous in which the electrical machine alternately generates braking and driving relative torques for reducing correspondingly alternating rotational irregularities, as is generally the case. occur in reciprocating internal combustion engines (claim 2).
  • a braking and a driving torque then alternately acts on the freely rotatable inertial mass of the second active unit.
  • the electrical machine is advantageously controlled in such a way that the alternating relative torques are essentially in opposite phase to the torques of the assembly which cause the rotational irregularities.
  • the angular velocity of the second knitting unit remains constant averaged over the rotational irregularities or changes only slowly.
  • a store for electrical energy is particularly advantageously provided for the storage and delivery of the energy (claim 3). For example, it is then possible to generate a relative torque in which both active units are accelerated or braked at the same time; the energy required for this is taken from the energy store or the energy thereby generated is stored in the energy store. More generally, the electrical energy store enables energy to be supplied or removed from the system of the two relatively rotatable parts.
  • a device which applies a torque to the second active unit of the electrical machine (claim 4).
  • the device can be a mechanical brake and / or a mechanical drive. It is particularly advantageous to set up a third electromagnetic active unit which, together with the second active unit or a rotating part coupled to it, functionally forms a second electrical one Forms a machine that can generate driving and / or braking torques, for example, through magnetic traveling fields.
  • the second machine can be designed as a sector machine or can extend around the entire circumference.
  • the device is advantageously arranged in a rotationally fixed manner.
  • the total torque acting on the second active unit then results from the sum of the torque applied by the device and the relative torque generated between the first and the second active unit.
  • the second knitting unit can then be accelerated and braked as desired, regardless of the reduction in rotational nonuniformity, and e.g. are brought into a speed range that is favorable for reducing rotational irregularities or are kept in this favorable speed range.
  • an operating state is favorable in which the angular momentum of the two relatively rotating parts of the rotating system (i.e. the shaft of the unit with the first active unit and the second active unit with its inertial mass) are essentially the same. With the same moments of inertia, this means the same speeds, with different moments of inertia, the speed ratio corresponds to the inverse moment of inertia ratio.
  • the device advantageously applies a braking, slowly changing torque to the second active unit in order to act as a generator for supplying consumers.
  • the second active unit is also advantageously fixable (claim 6).
  • the second active unit can be fixable, for example, on the non-uniformly rotating unit, for example an output shaft of the drive system.
  • the electrical machine then acts as an electromagnetic clutch.
  • the second active unit can also be fixable against rotation, for example by coupling to the non-rotatable motor housing (claim 7).
  • the device according to the invention can then advantageously also serve as a starter for the internal combustion engine.
  • the high torques required for starting would lead to a high speed increase of the second active unit in the case of an unfixed second active unit.
  • the device can then be useful as an additional drive and / or brake.
  • An embodiment is particularly advantageous in which the device, when the second active unit (5, 18) is fixed to the output shaft, acts as a starting and / or clutch for a vehicle.
  • the invention is also directed to a method for reducing rotational irregularities.
  • FIG. 1 shows a schematic representation of a device for reducing rotational irregularities in a vehicle drive system
  • FIGS. 2 and 3 are schematic exemplary representations of the functioning of the device (wherein in FIG. 3 the
  • FIG. 3a illustrates the operation of the prior art, and FIG. 3b relates to the invention
  • FIG. 4 shows a schematic representation of a second exemplary embodiment of a device for reducing
  • Fig. 5 is a schematic cross-sectional view of an electrical machine.
  • Fig. 1 against a vehicle chassis 11 supporting internal combustion engine 1 of a vehicle drive system brings a torque Mv according to a shaft 2.
  • Fig. 2 on.
  • a - desired - direct torque Mv is superimposed on an - undesirable - alternating torque Mv Panel.
  • the torque Mv alone would therefore lead to high speed fluctuations of the shaft 2 at a constant load torque.
  • the shaft 2 is rotatably supported relative to the vehicle chassis 11 with bearings 12, 13.
  • An electrical machine 3 sits concentrically on it.
  • a first active unit 4 of the electrical machine 3 sits directly on the shaft 2 and is connected to it in a rotationally fixed manner.
  • a second active unit 5 is rotatably supported with a bearing 6 with respect to the vehicle chassis 11 - and thus also with respect to the internal combustion engine 1.
  • the first active unit 4 corresponds structurally to a rotor, and the second active unit 5 corresponds to a stand, albeit rotatably mounted, of a conventional asynchronous three-phase machine.
  • the windings (not shown) of the second active unit 5 are supplied by an inverter 7 connected to an electrical energy store 8 (for example a capacitor or a battery) with electrical currents and voltages of practically freely adjustable amplitude, phase and frequency.
  • the inverter 7 and the windings are coupled, for example, via slip rings (not shown).
  • the inverter 7 is e.g. a DC link inverter which cuts out modulated pulses from a constant DC link voltage with the help of electronic switches (e.g. field effect transistors or IGBTs), which - averaged by the inductance of the electrical machine 3 - results in almost sinusoidal currents of the desired frequency, Lead amplitude and phase.
  • electronic switches e.g. field effect transistors or IGBTs
  • IGBTs field effect transistors
  • the second active unit 5 Before the reduction in rotational nonuniformity, the second active unit 5 is subjected to a torque such that the second active unit 5 and the shaft 2 rotate in the same direction, and in particular with essentially the same angular momentum.
  • the second active unit 5 is adjusted accordingly, so that the above condition of the same angular momentum is permanently maintained.
  • a rotation angle encoder 10 measures the instantaneous rotation angle of the shaft 2. From this, the control unit 9 derives the torque acting on the shaft 2. In other embodiments (not shown) the instantaneous torque is measured directly, e.g. with the help of a torque sensor placed on the shaft, the functioning of which e.g. is based on a measurement of the torsion of shaft 2.
  • the control device 9 causes the first active unit 4 according to. Fig. 2 to apply an alternating accelerating and braking torque Me opposite the alternating torque Mv Touch to the shaft 2.
  • the total torque Mges shown in dashed lines in FIG. 2 then acts on them. With constant load torque, the speed of shaft 2 then remains essentially constant. The remaining slight speed fluctuations are caused by e.g. from inevitable control and measurement inaccuracies.
  • the counter torque -Me has an accelerating effect on the second active unit 5. Because of its rotatable mounting, its speed is increased. The energy generated during the braking action of the first active unit 4 is therefore stored in the rotational energy of the second active unit 5.
  • the electrical machine 3 thus acts in the manner of a controllable clutch in order to bring kinetic energy into the energy store or to get it out of it.
  • the energy generated when braking an irregularly rotating assembly for example a shaft
  • the energy required when accelerating the shaft is taken from the electrical energy store. High losses occur during the transport of the double conversion and the transport of the energy, since the high torques required cause the switching of high electrical powers, in particular at higher speeds.
  • the mode of operation of the invention according to FIG. 3b is completely different: here a substantially greater damping effect is achieved, namely an almost complete compensation of the rotational irregularity.
  • the electrical machine 3 can then e.g. as a conventional device for reducing rotational irregularities, as a starter for the internal combustion engine 1, as a drive or brake unit for accelerating or braking the shaft 2 and / or as an alternator to supply (not shown) electrical consumers.
  • an electrical machine 15 sits concentrically on a non-uniformly rotating shaft 16.
  • a first active unit 17 of the electrical machine 15 sits directly on the shaft 16 and is connected to this rotation test.
  • a second active unit 18 is rotatably mounted with a bearing 21.
  • the shaft 16 - and thus also the first active unit 17 - is rotatably supported by a bearing 20.
  • a third active unit 19 is connected in a rotationally fixed manner to the bearings 20, 21 and thus to the chassis via a connection 22.
  • the third active unit 19 corresponds structurally to the stator body of a sector machine, which is elongated in the shape of a circular sector.
  • the second active unit 18 rotatably mounted with the bearing 21 is composed of an inner part 23 and an outer part 24.
  • the outer part 24 corresponds structurally (a hollow here) rotor body of a sector machine
  • the inner part 23 corresponds to a stator body an asynchronous three-phase machine.
  • the first active unit 17 corresponds structurally to a rotor body of an asynchronous three-phase machine.
  • the windings (not shown) of the third active unit 19 and the inner part 23 of the second active unit 18 are supplied by an inverter 26 connected to an energy store 25 with electrical currents and voltages of practically freely adjustable amplitude, phase and frequency.
  • the inverter 26 and the windings of the inner part 23 are coupled via slip rings (not shown).
  • the inverter 26 can functionally e.g. consist of two independent or one switchable inverter.
  • the outer part 24 of the second knitting unit 18 and the third knitting unit 19 functionally form a sector machine with the third knitting unit 19 as a stator body.
  • the inner part 23 of the second active unit 18 and the first active unit 17 functionally form a three-phase asynchronous machine with the inner part 23 of the second active unit 18 as a rotatable stator body.
  • the inverter 26 - and thus also the torques generated - is controlled by a control unit 27.
  • the second active unit 18 is subjected to a torque such that the second active unit 18 and the shaft 16 rotate in the same direction, e.g. by generating a relative torque between the second and third knitting units 18, 19.
  • a rotary encoder 28 measures the instantaneous angle of rotation of the shaft 16. From this, the control unit 27 derives the torque acting on the shaft 16 and, in accordance with the statements relating to FIGS. 1 to 3, initiates the first by generating a relative torque between the first and second active units 17, 18 Knitting unit 17, to apply a torque to the shaft 16 which counteracts the torque fluctuations causing the rotational irregularities.
  • the total torque acting on the second active unit 18 results from the sum of the relative torque generated between the second and third active unit 18, 19 and the relative torque generated between the first and second active unit 17, 18.
  • the second knitting unit 18 and the first knitting unit 17 can thus be accelerated and braked independently of one another as desired.
  • the second knitting unit 18 according to the above.
  • Condition the same angular momentum are carried with the first active unit 17.
  • the energy obtained in the case of a reduction in speed due to the regenerative braking action of the sector machine can be stored in the energy store 25 and can be reused for later speed increases - in which the sector machine acts as a driving motor. Apart from minor losses, carrying the second active unit 18 on average does not require any energy for the purpose of adjusting the angular momentum.
  • a constant braking torque can additionally be applied to the second active unit 18.
  • the electrical machine formed by the third knitting unit 19 and the outer part 24 of the second knitting unit 18 can thus supply (essentially constant) electrical energy and e.g. save in memory 25.
  • a generator function for supplying consumers is implemented.
  • the second knitting unit is equipped with an output shaft of a motor vehicle, e.g. a gearbox input shaft can be fixed in a rotationally fixed manner.
  • a motor vehicle e.g. a gearbox input shaft
  • the electrical machine formed from the first and second active unit can act as an electromagnetic starting and / or clutch for a motor vehicle.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

L'invention concerne un dispositif de réduction des irrégularités de rotation d'un élément (1, 2, 16) à rotation irrégulière, notamment dans un moteur à combustion interne (1). Ce dispositif est constitué d'une machine électrique (3, 15) présentant au moins deux unités actives (4, 17; 5, 18) rotatives l'une par rapport à l'autre, la première étant reliée à l'élément (1, 2, 16) de rotation irrégulière et la deuxième pouvant tourner sensiblement librement. La machine électrique (3, 15) applique des moments de rotation relatifs entre les unités actives (4, 17; 5, 18) qui agissent à l'encontre des irrégularités de rotation, réalisant ainsi un appui sur la masse inerte, pouvant tourner sensiblement librement, de la deuxième unité active (5, 18). Les moments de rotation relatifs sont produits de façon active de telle manière qu'en cas d'irrégularité de rotation, les moments angulaires transmis à la masse inerte, pouvant tourner sensiblement librement, de la deuxième unité active (5, 18) sont supérieurs aux moments angulaires qui seraient transmis si la deuxième unité active (5, 18) était raccordée par simple couplage à la première unité active (4, 17). L'invention concerne également un procédé correspondant.
PCT/EP1998/001299 1997-03-06 1998-03-06 Dispositif de reduction des irregularites de rotation et procede correspondant WO1998039579A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98912451A EP0965007A2 (fr) 1997-03-06 1998-03-06 Dispositif de reduction des irregularites de rotation et procede correspondant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997109299 DE19709299A1 (de) 1997-03-06 1997-03-06 Vorrichtung zur Verringerung von Drehungleichförmigkeiten und Verfahren hierzu
DE19709299.3 1997-03-06

Publications (2)

Publication Number Publication Date
WO1998039579A2 true WO1998039579A2 (fr) 1998-09-11
WO1998039579A3 WO1998039579A3 (fr) 1998-12-03

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PCT/EP1998/001299 WO1998039579A2 (fr) 1997-03-06 1998-03-06 Dispositif de reduction des irregularites de rotation et procede correspondant

Country Status (3)

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EP (1) EP0965007A2 (fr)
DE (1) DE19709299A1 (fr)
WO (1) WO1998039579A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007966A1 (de) * 2005-02-22 2006-10-05 Zf Friedrichshafen Ag Antriebsstrang eines Kraftfahrzeugs und Verfahren zum Betreiben des Antriebsstranges
US20140025248A1 (en) * 2011-04-04 2014-01-23 Schaeffler Technologies AG & Co. KG Method for controlling a hybrid drivetrain and battery device in the hybrid drivetrain

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Publication number Priority date Publication date Assignee Title
DE102008018052B4 (de) * 2008-04-09 2022-09-22 Volkswagen Ag Verfahren und Vorrichtung zur Reduzierung eines Wechselmoments eines Antriebsstrangs eines Fahrzeugs und entsprechend ausgestaltetes Fahrzeug
DE102011101568A1 (de) 2011-05-16 2012-11-22 Schaeffler Technologies AG & Co. KG Magnetdämpfer
DE102015013541B4 (de) * 2015-10-19 2023-10-05 Audi Ag Verfahren zum Betrieb einer Elektromaschine
DE102016224134A1 (de) * 2016-12-05 2018-06-07 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg Nebenaggregat eines Kraftfahrzeugs

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DE325363C (de) 1917-05-04 1920-12-16 Siemens Schuckertwerke G M B H Einrichtung zur Daempfung von Verdrehungsschwingungen umlaufender Wellen
JPS58126434A (ja) 1982-01-23 1983-07-27 Nissan Motor Co Ltd 内燃機関のトルク平滑化装置
DE3230607A1 (de) 1982-08-18 1984-02-23 Volkswagenwerk Ag Antriebsanordnung mit einer brennkraftmaschine, die ein einen ungleichfoermigkeitsgrad aufweisendes drehmoment abgibt
DE4423577A1 (de) 1994-02-28 1995-08-31 Clouth Gummiwerke Ag Verfahren zur aktiven Schwingungsdämpfung und ein System zu dessen Durchführung

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GB708059A (en) * 1950-09-27 1954-04-28 British Thomson Houston Co Ltd Improvements in torsional oscillation dampers
DE2823225A1 (de) * 1978-05-27 1979-11-29 Erhard Lauster Entwicklungen G Hybridantriebsvorrichtung fuer kraftfahrzeuge
JPH01190922A (ja) * 1988-01-27 1989-08-01 Hitachi Ltd 内燃機関のトルク制御装置
DE19518672A1 (de) * 1995-05-20 1996-11-21 Fev Motorentech Gmbh & Co Kg Schwungradanordnung für ein Maschinenaggregat
DE19532163A1 (de) * 1995-08-31 1997-03-06 Clouth Gummiwerke Ag System zur aktiven Verringerung von Drehungleichförmigkeiten einer Welle, insbesondere der Triebwelle eines Verbrennungsmotors, und Verfahren hierzu

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325363C (de) 1917-05-04 1920-12-16 Siemens Schuckertwerke G M B H Einrichtung zur Daempfung von Verdrehungsschwingungen umlaufender Wellen
JPS58126434A (ja) 1982-01-23 1983-07-27 Nissan Motor Co Ltd 内燃機関のトルク平滑化装置
DE3230607A1 (de) 1982-08-18 1984-02-23 Volkswagenwerk Ag Antriebsanordnung mit einer brennkraftmaschine, die ein einen ungleichfoermigkeitsgrad aufweisendes drehmoment abgibt
DE4423577A1 (de) 1994-02-28 1995-08-31 Clouth Gummiwerke Ag Verfahren zur aktiven Schwingungsdämpfung und ein System zu dessen Durchführung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007966A1 (de) * 2005-02-22 2006-10-05 Zf Friedrichshafen Ag Antriebsstrang eines Kraftfahrzeugs und Verfahren zum Betreiben des Antriebsstranges
US20140025248A1 (en) * 2011-04-04 2014-01-23 Schaeffler Technologies AG & Co. KG Method for controlling a hybrid drivetrain and battery device in the hybrid drivetrain
US10343550B2 (en) 2011-04-04 2019-07-09 Schaeffler Technologies AG & Co. KG Method for controlling a hybrid drivetrain and battery device in the hybrid drivetrain

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Publication number Publication date
EP0965007A2 (fr) 1999-12-22
DE19709299A1 (de) 1998-09-17
WO1998039579A3 (fr) 1998-12-03

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