WO2012013377A1 - Schaltvorrichtung für ein getriebe - Google Patents
Schaltvorrichtung für ein getriebe Download PDFInfo
- Publication number
- WO2012013377A1 WO2012013377A1 PCT/EP2011/057933 EP2011057933W WO2012013377A1 WO 2012013377 A1 WO2012013377 A1 WO 2012013377A1 EP 2011057933 W EP2011057933 W EP 2011057933W WO 2012013377 A1 WO2012013377 A1 WO 2012013377A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switching device
- mass
- switching
- absorber
- absorber mass
- Prior art date
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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/24—Providing feel, e.g. to enable selection
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/24—Providing feel, e.g. to enable selection
- F16H2061/246—Additional mass or weight on shift linkage for improving feel
-
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0208—Selector apparatus with means for suppression of vibrations or reduction of noise
Definitions
- the invention relates to a shifting device for a change-speed gearbox of a motor vehicle, having a shifting shaft and an additional mass, which is coupled to the shifting shaft during the shifting process.
- a switching device of the generic type is known for example from DE 196 36 506 A1.
- the boom is connected via a handlebar with a shift lever, with which the shift shaft is actuated.
- the boom and with it the additional mass is moved, which counteracts the buildup of force peaks.
- a disadvantage of this known switching device that can still build up force peaks at fast switching operations that are disturbing or harmful.
- DE 10 2006 024 627 A1 shows a switching device in which the additional mass is not firmly coupled to the boom, but by means of a spring element is elastically relatively movable to this, in order To achieve a smoother control of the mass forces and to better reduce force peaks.
- a disadvantage of the above-mentioned arrangements is that under certain operating conditions vibrations and vibrations, in the following summarized under vibrations, are transmitted from the idler gears and the synchronization to the selector shaft.
- the switching device is particularly susceptible to resonance because its natural frequency or an integral multiple of its natural frequency is excited.
- the usually relatively far overhanging additional mass then oscillates particularly easily.
- the resulting resonances significantly affect the ride comfort and are noticeable on the operating lever of the transmission in the vehicle interior. To avoid the additional mass but not be chosen smaller in any case or arranged differently, since the otherwise no longer fully fulfills its function.
- the present invention is therefore based on the object to provide a method for preventing vibrations of a switching device or a switching device of the type mentioned in such a way that unwanted vibrations are avoided during operation and at the same time force peaks are effectively prevented. Summary of the invention
- the switching device in addition to the additional mass has at least one absorber mass as a further mass, which is not rigidly coupled to the additional mass. While the additional mass serves as a Pnmärzusatzschaltmasse to absorb inertia increase of the switching device and can reduce power, the absorber mass changes the frequency spectrum of the switching device due to an external excitation so that the Reso nanzenamplituden be reduced at least in the frequency range that is typical for the operation of the switching device.
- this not only smoothes the frequency spectrum resulting from external excitations, but also shifts the resonant frequency to a range below the idling speed of an internal combustion engine provided for the change-speed gearbox, so that the natural frequency of the system is briefly traversed only during the starting process , Alternatively, the natural frequency is placed in a range that is above allowable transmission speeds and therefore never reached.
- the additional mass and absorber mass can also be designed so that only a partial shift of the resonance frequency in areas that are achieved only under rare operating conditions. It is also conceivable to provide an increase in the resonance amplitude in certain frequency ranges, if the resonance peaks in other frequency ranges can be significantly reduced for this purpose.
- the absorber mass is due to their purpose usually different dimensions than the additional mass. Depending on the embodiment and connection, it may be smaller by one order of magnitude than the additional mass. It should be noted that not only the mass, but also the geometry of the absorber mass for their function is important.
- the absorber mass is arranged so that it is always displaceable relative to the additional mass, both when desired forces act on the additional mass, as well as non-actuated switching device.
- the absorber mass can be arranged on or on the shift shaft.
- the absorber mass is preferably spring-loaded with respect to the other components of the switching device by a mechanical spring element.
- hydraulic Anfederungen are conceivable.
- the absorber mass does not need to be a solid. It can also be designed as an encapsulated amount of liquid, which makes dispensing unnecessary. For this purpose, it is arranged, for example, between two communicating chambers. Even a not completely filled capsule with a liquid of suitable viscosity is conceivable.
- the absorber mass is a means that allows the desired change in the frequency spectrum of the switching device.
- the spatial position of the absorber mass can in principle be chosen freely. In most switching devices, however, the strongest vibrations and vibrations will occur on the shift mass, as this is relatively massive for a relatively wide and on the other hand is generally widely spaced radially from the shift shaft.
- the switching mass thus decisively shapes the susceptibility of the switching device for large vibration amplitudes. Therefore, it is provided in a further embodiment of the invention to arrange the absorber mass in spatial proximity to the cantilevered additional mass, since it is particularly easy to excite from vibrations and change the vibration spectrum particularly effective and possibly the level of vibrations particularly easy (partially) compensate can.
- the switching device is easy to handle when the absorber mass is integrated in the switching device, in particular in the additional mass.
- the absorber mass can be arranged together with the shift mass on a boom which has a corresponding recess for the absorber mass and the components that bind them.
- the movement of the absorber mass takes place in such a way that the absorber mass is flanked, at least laterally, by the switching mass along its entire path of movement. At the same time compared to arrangements without absorber mass of the required space is about the same.
- each switching device Due to installation and manufacturing tolerances, each switching device has its characteristic excitation spectrum.
- an absorber mass is provided which is exchangeable without other components must be dismantled.
- the absorber mass can be added to the individual switching device, or there are various installation positions provided that take into account the individual frequency behavior.
- the built-in absorber mass can have a holder for a mass correction element, or the spring travel is varied, for example by changing the spring preload. Also feathers with progressive characteristic can spring the absorber mass.
- the invention is not limited to an absorber mass.
- several natural frequencies of the switching device and their harmonics can be displaced particularly effectively by a plurality of absorber masses, which are tuned to the individual resonant frequencies to be detuned.
- the absorber masses may have mutually different geometries, masses and arrangements in the switching device. They are usually both to an additional mass and mutually independently deflected.
- a damping mass is arranged in each case in different arms of an additional mass.
- the absorber mass is formed on the central switching element, usually on the switching shaft.
- the absorber mass In transmissions without switching shaft and several absorber masses can be formed on one or more shift forks or other components.
- the absorber mass performs spring work or friction work.
- the absorber mass can move, for example, in a liquid-filled cylinder to perform valve work as with shock absorbers. This is an attenuation even at low vibration amplitudes.
- a spring-loaded absorber mass can additionally strike at the end of its travel against rubber elements, whereby an additional damping of the one guided vibrations are effected, provided that they exceed a certain level.
- the invention also makes it possible to simplify the structure of the switching device.
- additional masses are generally slide-mounted and have the smallest possible operating clearance in order to prevent the shifting comfort affecting vibrations as far as possible. Due to the low operating clearance is a relative displacement of the shift rod to the additional mass, as it is desirable for the selection of a shift gate, but difficult, so that the dialing seems difficult.
- the invention therefore allows an increase in the operating clearance and thus easier displacement of the additional mass to the shift rod, so that the selection movement is more comfortable without further action.
- the vibrations thus occurring are compensated by the absorption mass. Constructively more complex solutions or the use of a rolling bearing are thus avoided.
- the invention relates to a method for reducing vibrations of a transmission switching device with a switching shaft.
- Two masses which are arranged displaceably with each other, thereby forming a two-mass system, which is adapted to the switching device on the choice of the masses, their arrangement to each other and with respect to the shaft, their moments of inertia and their articulation or suspension, that the natural frequencies of the switching device are shifted compared to a switching device without absorber mass.
- an additional damping takes place, so that initiated vibrations additionally decay faster.
- Fig. 1 shows a switching device for a change-speed gearbox of a
- Fig. 2 is an enlarged view of the boom of the switching device of Figure 1 with another absorber mass.
- FIG. 1 shows a part of a switching device 1 for a change-speed gearbox of a motor vehicle.
- An unillustrated manual shift lever engages via a suitable linkage or cable via a ball joint 11 to an additional mass 4.
- a shift shaft 3 is rotated, which brings by means not shown shift finger, the change gears of the transmission in or out of engagement.
- the selector lever 2 With the selector lever 2, the shift shaft 3 can be moved axially without the additional mass 4 is moved axially.
- a cylinder 13 is rotatably disposed by means of internal teeth 12.
- the cylinder 13 is provided with a substantially radially directed arm 7, which merges at its radially outer end 8 in a circumferential direction directed, angled end piece 14.
- the tail 14 and the boom 7 are integrally formed and together form the additional mass 4. Due to the rotationally fixed coupling to the switching shaft 3, the rotational or pivotal movement of the ball head 11 acting lever is transmitted directly to the boom 7.
- the total mass of the switching device 1 should not unnecessarily increase, it has a smaller cross section than the tail 14.
- the end piece 14 has a window 9, whose end faces 15, 16 directed in the circumferential direction have a bore 17.
- a pin 10 is held captive, on which the absorber mass 5 is arranged longitudinally displaceable.
- the absorber mass 5 is a toroidal body, which is supported on the two end faces 15, 16 via the pin 10 enclosing helical compression springs 18 which hold it in the rest position approximately in the middle of the window 9. It is thus arranged movable to the additional mass 4.
- the arrangement can absorb externally introduced vibration energy by rubbing the absorber mass 5 at its window edges 19, 20 located laterally in the direction of movement. For this purpose, it is provided with a corresponding coating.
- the end faces 15, 16 are provided with rubber elements 6, so that at particularly high deflections additional vibration energy can be reduced.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180036652.5A CN103026106B (zh) | 2010-07-26 | 2011-05-17 | 用于变速器的换挡装置 |
EP11721493.2A EP2598776B1 (de) | 2010-07-26 | 2011-05-17 | Schaltvorrichtung für ein getriebe |
BR112013000142A BR112013000142A2 (pt) | 2010-07-26 | 2011-05-17 | dispositivo de comutação e método para redução das oscilações de um dispositivo de comutação |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010032250.4 | 2010-07-26 | ||
DE201010032250 DE102010032250A1 (de) | 2010-07-26 | 2010-07-26 | Schaltvorrichtung für ein Getriebe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012013377A1 true WO2012013377A1 (de) | 2012-02-02 |
Family
ID=44227524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/057933 WO2012013377A1 (de) | 2010-07-26 | 2011-05-17 | Schaltvorrichtung für ein getriebe |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2598776B1 (de) |
CN (1) | CN103026106B (de) |
BR (1) | BR112013000142A2 (de) |
DE (1) | DE102010032250A1 (de) |
WO (1) | WO2012013377A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012212735B4 (de) * | 2012-07-19 | 2016-10-27 | Schaeffler Technologies AG & Co. KG | Mehrteilige Schwungmasse |
DE102013204175B4 (de) * | 2013-03-12 | 2014-11-27 | Bayerische Motoren Werke Aktiengesellschaft | Fahrzeug mit einer Schalthebelanordnung |
CN203743392U (zh) * | 2013-07-26 | 2014-07-30 | 通用汽车环球科技运作有限责任公司 | 具有双配重的换挡机构箱架 |
DE102014218470B4 (de) | 2014-09-15 | 2019-12-19 | Schaeffler Technologies AG & Co. KG | Schaltvorrichtung für ein Getriebe |
DE102014221138A1 (de) | 2014-10-17 | 2015-12-31 | Schaeffler Technologies AG & Co. KG | Handschalthebel eines Kraftfahrzeuggetriebes |
DE102014225131A1 (de) | 2014-12-08 | 2015-12-31 | Schaeffler Technologies AG & Co. KG | Baueinheit mit einem Handschalthebel eines Kraftfahrzeuggetriebes |
DE102015200800A1 (de) | 2015-01-20 | 2015-12-31 | Schaeffler Technologies AG & Co. KG | Baueinheit mit einem Handschalthebel eines Kraftfahrzeuggetriebes |
CN106286793A (zh) * | 2015-05-28 | 2017-01-04 | 长城汽车股份有限公司 | 变速换挡机构、换挡摇臂和用于换挡摇臂的减振装置 |
DE102016209521B4 (de) | 2016-06-01 | 2020-06-10 | Schaeffler Technologies AG & Co. KG | Schalthebel mit Zusatzmasse |
DE102017107930A1 (de) | 2017-04-12 | 2018-10-18 | Schaeffler Technologies AG & Co. KG | Schwingungstilger am Schaltdom |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19636506A1 (de) | 1996-09-09 | 1998-03-12 | Daimler Benz Ag | Schaltvorrichtung für ein Gangwechselgetriebe eines Kraftfahrzeuges |
WO2006041347A1 (en) * | 2004-09-07 | 2006-04-20 | Volvo Lastvagnar Ab | Damping mass for increased gear shifting comfort |
FR2882122A1 (fr) * | 2005-02-17 | 2006-08-18 | Renault Sas | Dispositif de commande de passage de vitesses |
DE102006024627A1 (de) | 2006-05-26 | 2007-11-29 | Schaeffler Kg | Schaltvorrichtung für ein Getriebe |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100412374B1 (ko) * | 2001-01-08 | 2003-12-31 | 현대자동차주식회사 | 수동변속기용 변속조작기구의 매스 댐퍼 |
CN101761646B (zh) * | 2010-01-26 | 2013-02-13 | 重庆青山工业有限责任公司 | 手动变速器的换档机构 |
-
2010
- 2010-07-26 DE DE201010032250 patent/DE102010032250A1/de not_active Withdrawn
-
2011
- 2011-05-17 CN CN201180036652.5A patent/CN103026106B/zh active Active
- 2011-05-17 BR BR112013000142A patent/BR112013000142A2/pt not_active Application Discontinuation
- 2011-05-17 WO PCT/EP2011/057933 patent/WO2012013377A1/de active Application Filing
- 2011-05-17 EP EP11721493.2A patent/EP2598776B1/de not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19636506A1 (de) | 1996-09-09 | 1998-03-12 | Daimler Benz Ag | Schaltvorrichtung für ein Gangwechselgetriebe eines Kraftfahrzeuges |
WO2006041347A1 (en) * | 2004-09-07 | 2006-04-20 | Volvo Lastvagnar Ab | Damping mass for increased gear shifting comfort |
FR2882122A1 (fr) * | 2005-02-17 | 2006-08-18 | Renault Sas | Dispositif de commande de passage de vitesses |
DE102006024627A1 (de) | 2006-05-26 | 2007-11-29 | Schaeffler Kg | Schaltvorrichtung für ein Getriebe |
Also Published As
Publication number | Publication date |
---|---|
CN103026106A (zh) | 2013-04-03 |
EP2598776B1 (de) | 2018-10-10 |
BR112013000142A2 (pt) | 2017-10-31 |
EP2598776A1 (de) | 2013-06-05 |
CN103026106B (zh) | 2015-11-25 |
DE102010032250A1 (de) | 2012-01-26 |
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