WO2014202073A2 - Transmission par chaîne - Google Patents

Transmission par chaîne Download PDF

Info

Publication number
WO2014202073A2
WO2014202073A2 PCT/DE2014/200251 DE2014200251W WO2014202073A2 WO 2014202073 A2 WO2014202073 A2 WO 2014202073A2 DE 2014200251 W DE2014200251 W DE 2014200251W WO 2014202073 A2 WO2014202073 A2 WO 2014202073A2
Authority
WO
WIPO (PCT)
Prior art keywords
chain
chain drive
continuously variable
belt transmission
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2014/200251
Other languages
German (de)
English (en)
Other versions
WO2014202073A3 (fr
Inventor
Thomas Endler
Simon TRAUSCHOLD
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2014202073A2 publication Critical patent/WO2014202073A2/fr
Publication of WO2014202073A3 publication Critical patent/WO2014202073A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
    • 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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing
    • 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
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • F16H2057/0012—Vibration-damping or noise reducing means specially adapted for gearings for reducing drive line oscillations

Definitions

  • the invention relates to a chain drive with at least one chain.
  • the invention further relates to a method for operating such a chain drive.
  • the invention also relates to a continuously variable belt transmission with such a chain drive.
  • the invention further relates to a motor vehicle with such a continuously variable belt transmission.
  • the invention relates in particular to a chain drive with a link chain in a continuously variable conical-pulley transmission, which is also referred to as CVT transmission, wherein the letters CVT for the English terms Continuously variable transmission stand.
  • Lashing chains for continuously variable bevel gear transmissions are described, for example, in German Offenlegungsschriften DE 34 13 384 A1 and DE 10 2007 023 264 A1.
  • German patent application DE 10 2005 060 064 A1 discloses a method for
  • noise influencing wherein as a noise source, an engine in a motor vehicle with a substantially periodic variable excitation generates the noise, and wherein a characteristic of the noise source reference variable, in particular an engine speed, at predetermined successive provision times is present, wherein a reference signal to a Device for active noise control is provided, which generates in response to the reference signal Anêtsig- signals for at least one actuator, wherein the at least one actuator radiating compensation sound, which interferes with the noise.
  • German patent application DE 10 201 1 106 647 A1 discloses a method for controlling an anti-noise system for an exhaust system of an internal combustion engine powered vehicle for generating an anti-airborne sound in the exhaust system based on measured sound to run in the exhaust system, from a Internal combustion engine generated airborne sound in the area in the exhaust system to which the sound is measured, at least partially and preferably extinguish completely in magnitude and phase.
  • the object of the invention is to allow the simplest possible operation of a chain in a chain drive in a simple manner.
  • the task is solved in a chain drive with at least one chain in that the chain is associated with a device for active noise compensation.
  • the chain is preferably the chain of a continuously variable belt transmission.
  • noises occur that are reduced or eliminated in conventional chain drives, for example by passive measures.
  • active measures are taken by the allocation of the device for active noise compensation in order to reduce operating noise of the chain drive.
  • a preferred embodiment of the chain drive is characterized in that the chain is designed as an equal sharing chain.
  • conventional chain drives different lengths of chain links are used in a defined sequence for passive noise optimization in order to represent a fault separation.
  • the identical alignment chain according to the invention provides the advantage that its acoustic behavior during operation can be predicted relatively well.
  • the relevant acoustic stimulation concentrates in the same sharing chain on a relatively narrow frequency band that is only affected by the speed and chain running circuit.
  • a preferred embodiment of the chain drive is characterized in that the chain is designed as a link chain, in particular for a continuously variable transmission of a motor vehicle, with tabs, which are in particular articulated by Wiegetik Federationpare interconnected.
  • a further preferred embodiment of the chain drive is characterized in that the device for active noise compensation comprises at least one actuator which emits anti-sound.
  • the above-mentioned object is alternatively or additionally achieved in that a significant acoustic excitation of the chain in the chain drive is detected and eliminated or reduced by means of anti-sound.
  • the inventive method makes it possible to meet the ever increasing demands on the acoustics in the operation of chain drives, without unwanted losses, especially with regard to the efficiency and / or strength of the chain, must be taken into account.
  • a preferred method is characterized in that the relevant acoustic excitation of the chain is determined at a constant pitch from an impact of chain elements, in particular of cradles or rocker pressure pieces, on disk set surfaces.
  • the use of the uniform division chain with the constant pitch provides the advantage that the significant acoustic excitation of the chain is reduced to a narrow frequency band, which is influenced only by a speed and a chain running circle.
  • These variables can be determined particularly advantageously by already existing sensors or software means in a simple manner and enable the elimination of disturbing noises by anti-sound.
  • a further preferred method is characterized in that the relevant acoustic excitation of the chain in the chain drive is detected by means of sensors and software means. It is particularly advantageous to use conventional sensors and software means which are present in conventional systems.
  • the above object is achieved alternatively or additionally by a continuously variable belt drive with a chain drive described above, which is operated in particular according to a method described above.
  • the continuously variable belt transmission is preferably designed as a conical-pulley transmission.
  • the invention further relates to a motor vehicle with a previously described continuously variable belt transmission.
  • the chain which is designed as an identical sharing chain, facilitates the active noise reduction considerably.
  • the invention relates to a conical-pulley, whose translation is infinitely adjustable.
  • the conical-pulley transmission is disposed in a power train of a motor vehicle between a drive unit such as an engine and driven axles.
  • the conical-pulley transmission adapts the ratio of the gearbox to the driving conditions of the internal combustion engine or to the requirements of the driver.
  • a looping means is a chain, which is also referred to as a link chain.
  • the chain connects two pairs of conical disks or sets of conical disks in the flow of force or torque flow, whereby a ratio change can be realized by a variation of the running radius of the belt with respect to the axis of the conical disks.
  • the one cone pulley pair can be connected at least to a transmission input shaft which can be connected to an output shaft of the internal combustion engine.
  • the other cone pulley pair is connectable at least with a transmission output shaft.
  • the chain includes plungers, which are also referred to as rocker or pieces of rocker and advantageously arranged in pairs.
  • the pressure pieces are arranged perpendicularly or transversely to the running direction of the chain.
  • the running direction of the chain essentially reflects the direction of the connection between the pairs of conical pulleys and generally coincides with the longitudinal direction of the chain.
  • the invention provides a chain which is optimally suited for the use of active noise reduction methods.
  • the chain according to the invention is constructed with a constant pitch.
  • the constant pitch chain is also referred to as an equal sharing chain.
  • the narrow frequency band of the acoustic excitation is advantageously influenced only by the speed and the chain running circuit. These variables can be determined particularly advantageously by already existing sensors or software means and enable the elimination of disturbing noises by anti-sound.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Transmission Devices (AREA)
  • Tires In General (AREA)

Abstract

L'invention concerne une transmission par chaîne comprenant au moins une chaîne. L'invention est caractérisée en ce qu'un dispositif de suppression active du bruit est associé à la chaîne.
PCT/DE2014/200251 2013-06-21 2014-06-10 Transmission par chaîne Ceased WO2014202073A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013211815 2013-06-21
DE102013211815.5 2013-06-21

Publications (2)

Publication Number Publication Date
WO2014202073A2 true WO2014202073A2 (fr) 2014-12-24
WO2014202073A3 WO2014202073A3 (fr) 2015-02-19

Family

ID=51176023

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200251 Ceased WO2014202073A2 (fr) 2013-06-21 2014-06-10 Transmission par chaîne

Country Status (2)

Country Link
DE (1) DE102014210974A1 (fr)
WO (1) WO2014202073A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015222830A1 (de) 2015-11-19 2017-05-24 Schaeffler Technologies AG & Co. KG Kraftfahrzeugkettentrieb mit ausgesparten Laschen
DE102021121852B4 (de) 2021-08-24 2023-06-15 Schaeffler Technologies AG & Co. KG Verfahren zur Kompensation von in einem Umschlingungsgetriebe verursachten Körperschall mittels einer elektrischen Maschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3413384A1 (de) 1984-04-10 1985-10-31 P.I.V. Antrieb Werner Reimers GmbH & Co KG, 6380 Bad Homburg Laschenkette fuer stufenlos verstellbare kegelscheibengetriebe
DE102005060064A1 (de) 2005-12-15 2007-06-21 Müller-BBM GmbH Verfahren und System zur aktiven Geräuschbeeinflussung, Verwendung in einem Kraftfahrzeug
DE102007023264A1 (de) 2006-06-10 2007-12-13 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Laschenkette
DE102011106647A1 (de) 2011-07-05 2013-01-10 J. Eberspächer GmbH & Co. KG Antischall-system für abgasanlagen und verfahren zum steuern desselben

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004051474A1 (de) * 2003-11-05 2005-06-02 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Verfahren und System zum Vermindern des von einem CVT-Ketten-Getriebe verursachten Luft- und/oder Körperschalls, sowie CVT-Ketten-Getriebe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3413384A1 (de) 1984-04-10 1985-10-31 P.I.V. Antrieb Werner Reimers GmbH & Co KG, 6380 Bad Homburg Laschenkette fuer stufenlos verstellbare kegelscheibengetriebe
DE102005060064A1 (de) 2005-12-15 2007-06-21 Müller-BBM GmbH Verfahren und System zur aktiven Geräuschbeeinflussung, Verwendung in einem Kraftfahrzeug
DE102007023264A1 (de) 2006-06-10 2007-12-13 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Laschenkette
DE102011106647A1 (de) 2011-07-05 2013-01-10 J. Eberspächer GmbH & Co. KG Antischall-system für abgasanlagen und verfahren zum steuern desselben

Also Published As

Publication number Publication date
WO2014202073A3 (fr) 2015-02-19
DE102014210974A1 (de) 2014-12-24

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