WO2008110555A2 - Dispositif de changement de vitesse électrique pour un véhicule à moteur - Google Patents

Dispositif de changement de vitesse électrique pour un véhicule à moteur Download PDF

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Publication number
WO2008110555A2
WO2008110555A2 PCT/EP2008/052876 EP2008052876W WO2008110555A2 WO 2008110555 A2 WO2008110555 A2 WO 2008110555A2 EP 2008052876 W EP2008052876 W EP 2008052876W WO 2008110555 A2 WO2008110555 A2 WO 2008110555A2
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
piston
shift lever
switching device
electrical switching
Prior art date
Application number
PCT/EP2008/052876
Other languages
German (de)
English (en)
Other versions
WO2008110555A3 (fr
Inventor
Harald Donner
Frank BLÄSING
Original Assignee
Leopold Kostal Gmbh & 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 Leopold Kostal Gmbh & Co. Kg filed Critical Leopold Kostal Gmbh & Co. Kg
Publication of WO2008110555A2 publication Critical patent/WO2008110555A2/fr
Publication of WO2008110555A3 publication Critical patent/WO2008110555A3/fr

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
    • F16H61/22—Locking of the control input devices
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H2059/0295—Selector apparatus with mechanisms to return lever to neutral or datum position, e.g. by return 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
    • 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
    • F16H2061/241—Actuators providing feel or simulating a shift gate, i.e. with active force generation for providing counter forces for feed back

Definitions

  • the invention relates to an electrical switching device for a motor vehicle, with a lever mounted pivotably about at least one axis and with at least one locking device which can put a shift stop for the shift lever in or out.
  • Such switching devices are used in motor vehicles that are equipped with an automated manual transmission.
  • the actual switching operation is performed electro-hydraulically or by electric motor, while the respective switching request of the driver is detected electrically or electronically.
  • the driver are in such an automated transmission, the electric switching device with a shift lever and possibly additional, arranged approximately on the steering wheel rocker switches for upshifting and downshifting available.
  • the lever of such a switching device can be made multi-stable or monostable, that is, he can either be adjustable in several fixed positions or he has, similar to a joystick only a stable rest position in which the lever from several unstable positions repeatedly falls back.
  • EP 1 464 875 A2 a switching device is known, which has a device which can override a switching stop, so that the switching lever is pivotable beyond the switching position defined by this switching stop.
  • EP 1 464 875 A2 discloses a relatively complex built-up rocker arm arrangement, which is actuated by an electromagnetic drive.
  • an electromagnetic drive can cause disturbing noises and a significant amount of heat during its operation.
  • the electrical switching device has the advantage over this prior art device, particularly low noise and without significant self-heating to limit or release the actuating travel of a shift lever.
  • the device comprises a cylinder filled with an incompressible liquid, in which a piston is received axially displaceable, wherein the switching stop is set by fixing the piston in a position in force.
  • a helical compression spring is arranged between the shift lever facing away from the bottom wall of the cylinder and the piston, which presses the piston with its spring force against the shift lever facing the top wall of the cylinder.
  • the bottom wall of the cylinder is provided with an opening and this connected to a pipeline which opens into a reservoir.
  • an electromagnet is arranged so that the pipeline passes through an air gap in the yoke
  • a gap is formed between the radial outer contour of the piston and the inner wall of the cylinder through which the fluid in the axial direction of the cylinder from one side of the piston to the other and back flow.
  • the cylinder is surrounded here by an electrical conductor coil, which is electrically energized to generate a magnetic field in the interior of the cylinder.
  • a preferred application of an electrical switching device is to block switching paths of a monostable or multi-stable gear selector switch depending on the already inserted gear. Further advantageous embodiments and further developments of the switching device according to the invention will be explained with reference to the drawing.
  • FIG. 1 shows a switching device according to the invention with hydraulic elements for a magnetorheological fluid according to a first embodiment
  • FIG. 2 one of the hydraulic elements of Fig. 1 as a detail
  • FIG. 3 shows a hydraulic element according to an alternative embodiment for use in the switching device of FIG. 1 as a partially sectioned three-dimensional view and in cross section
  • the shift lever 1 of the electrical switching device is mounted in a universal joint 2 about two mutually perpendicular axes 3a and 3b pivotally.
  • a spring-loaded locking pin 8 which is guided in a three-dimensional latching cam 9.
  • the plungers 6 are each connected to a piston 5, which is axially displaceable in a cylinder 4 filled with an incompressible liquid 10 is included.
  • a helical compression spring 7 is arranged in the cylinder 4 between the shift lever 1 facing away from the bottom wall 4a and the piston 5 and pushes the piston 5 with its spring force against the shift lever 1 facing top wall 4b of the cylinder 4.
  • the piston 5 connected to the plunger 6 is located itself with its front side in the immediate vicinity of the shift lever 1, so that it already comes to a leading in the direction of the plunger 6 pivoting movement after a very short path to this.
  • the bottom walls 4a of the cylinder 4 are each provided with an opening and connected to pipes 11, which open at their other ends in a common reservoir, not shown here.
  • this is a so-called magnetorheological fluid.
  • Magnetorheological or electrorheological fluids are liquids in which the rheological properties, ie their fluidity or viscosity, are steplessly controllable by an applied external magnetic or electric field.
  • these liquids are suspensions, ie solid particles suspended in a carrier medium which can be polarized via the applied magnetic or electric field.
  • magnetorheological or electrorheological fluids it is possible to execute hydraulic systems without moving parts or to significantly reduce the number of moving parts.
  • the magnetorheological fluid used in this embodiment can of course also be replaced by an electrorheological fluid when the hydraulic elements are adapted accordingly.
  • a solenoid 12 is arranged at one point so that the pipe 11 passes through the air gap in the yoke 13. This is shown in detail in FIG. 2. If the electromagnet 12 is turned on by energizing its coil 14, then the magnetic field penetrates the pipeline 11 at this point and solidifies the magnetorheological fluid 10 there locally so strongly that a flow through the cross section of the pipeline 11 is no longer possible. The solenoid 12 thus forms a hydraulic valve in cooperation with the magnetorheological fluid 10.
  • the movement of the shift lever 1 counteracting force is composed of the by the interaction of the spring-loaded locking bolt 8 and the associated three-dimensional locking cam 9 and the force of the coil spring 7 together, wherein the force of the coil spring 7 is only dimensioned so strong that this one safe provision of the piston 5 is ensured in its end position on the top wall 4b of the cylinder 4.
  • the provided for resetting the piston 5 in its end position helical compression springs 7 can possibly even be saved by a certain pressure is exerted on the liquid 10 in the reservoir, which then causes a return of the piston 5 via the liquid.
  • the provision of the shift lever 1 in its center position is carried out either after elimination of the deflecting actuation force by the latching cam 9 and the locking pin 8, if it is a tactile actuation, or by applying a counteracted in the opposite direction of the original operation counteracting force, if it is a latching operation is.
  • FIG. 4 An alternative embodiment of the cylinders 4 using a magnetorheological fluid 10 is shown in FIG.
  • the cylinder 4 shown here can replace the cylinder shown in FIGS. 1 and 2 directly.
  • the particular advantage of the cylinder 4 shown in Fig. 3 is that it can be dispensed with piping and a reservoir, since this cylinder 4 is a closed system in which the liquid 10 within the cylinder 4 by overflow from a Side of the piston 5 is shifted to the other.
  • the only opening of the cylinder 4 is in its top wall 4b, through which the plunger 6 connected to the piston 5 projects outwardly.
  • a gap 15 is formed here between the radial outer contour of the piston 5 and the inner wall of the cylinder 4. If a force is exerted in the direction indicated by the arrow in FIG. 3 on the plunger 6, it is moved against the force of the helical compression spring 7.
  • the liquid 10 located between the piston 5 and the bottom wall 4a of the cylinder 4 is thereby introduced into the space between the piston 5 and 5 by the gap 15 formed between the radial outer contour of the piston 5 and the inner wall of the cylinder 4 the lid wall 4b of the cylinder 4 is displaced into it.
  • the liquid 10 flows back in the same way.
  • the cylinder 4 is surrounded by an electrical conductor coil 16. If this conductor coil 16 flows through an electric current, the result is an axially aligned magnetic field in the interior of the cylinder 4.
  • the conductor coil 16 is energized. Due to the magnetic field generated in the process, the magnetorelogic fluid 10 in the interior of the cylinder 4 is solidified to such an extent that overflow from one side of the piston 5 to the other through the relatively narrow gap 15 is no longer possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

La présente invention concerne un dispositif de changement de vitesse électrique pour un véhicule à moteur, comprenant au moins un levier de changement de vitesse qui est monté pivotant autour d'au moins un axe, et au moins un dispositif de blocage qui peut activer ou désactiver une butée de changement de vitesse pour le levier de changement de vitesse. Cette invention est caractérisée en ce que le dispositif de blocage comprend des moyens hydrauliques.
PCT/EP2008/052876 2007-03-13 2008-03-11 Dispositif de changement de vitesse électrique pour un véhicule à moteur WO2008110555A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007011901.3A DE102007011901B4 (de) 2007-03-13 2007-03-13 Elektrische Schalteinrichtung für ein Kraftfahrzeug
DE102007011901.3 2007-03-13

Publications (2)

Publication Number Publication Date
WO2008110555A2 true WO2008110555A2 (fr) 2008-09-18
WO2008110555A3 WO2008110555A3 (fr) 2009-04-02

Family

ID=39511006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/052876 WO2008110555A2 (fr) 2007-03-13 2008-03-11 Dispositif de changement de vitesse électrique pour un véhicule à moteur

Country Status (2)

Country Link
DE (1) DE102007011901B4 (fr)
WO (1) WO2008110555A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109204313A (zh) * 2017-06-29 2019-01-15 通用汽车环球科技运作有限责任公司 用于通过组合停车和点火开关来控制变速器和发动机的系统和方法
US10436311B2 (en) 2017-08-30 2019-10-08 Nissan North America, Inc. Automatic transmission shifter assembly
US10465793B2 (en) 2017-08-30 2019-11-05 Nissan North America, Inc. Automatic transmission shifter assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007507A1 (de) * 2010-02-11 2011-08-11 Bayerische Motoren Werke Aktiengesellschaft, 80809 Verfahren zum Blockieren mindestens einer Anwahlposition eines Wählelements sowie Schalteinrichtung für Fahrzeuge
EP2792910B1 (fr) * 2013-04-15 2018-03-14 Marquardt GmbH Dispositif de commande de véhicule automobile doté d'un levier de changement de vitesse
EP3371488B1 (fr) * 2015-11-02 2020-03-18 INVENTUS Engineering GmbH Ensemble actionneur de changement de vitesses pour une transmission de véhicule

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722206A1 (de) * 1987-07-04 1989-01-12 Fendt & Co Xaver Steuereinrichtung fuer die betaetigung von magnetventilen an nutzfahrzeugen
WO1999000615A1 (fr) * 1997-06-27 1999-01-07 Kongsberg Automotive Ab Dispositif de commande
DE19944179C1 (de) * 1999-09-15 2001-01-11 Daimler Chrysler Ag Wähleinrichtung für ein Automatgetriebe
EP1318336A2 (fr) * 2001-12-05 2003-06-11 Audi Ag Véhicule automobile équipé d'une boíte de vitesses automatique
EP1464875A2 (fr) * 2003-04-04 2004-10-06 ZF Lemförder Metallwaren AG Dispositif de changement de vitesse monostable avec P-position
DE102006042629A1 (de) * 2006-09-05 2008-03-20 ITT Mfg. Enterprises, Inc., Wilmington Schaltknüppel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118616B (de) * 1958-02-06 1961-11-30 Renault Servo-Blockiervorrichtung fuer Kraftfahrzeuge
DE19625019A1 (de) * 1996-06-22 1998-01-02 Bayerische Motoren Werke Ag Kraftfahrzeug mit automatisch geschaltetem Getriebe
DE10005167C2 (de) * 2000-02-08 2002-02-14 Zf Lemfoerder Metallwaren Ag "Shift by Wire"-Schaltvorrichtung für ein Automatikgetriebe eines Kraftfahrzeuges
DE102005026048B3 (de) * 2005-06-03 2007-01-04 Benteler Automobiltechnik Gmbh Getriebeschalthebelanordnung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722206A1 (de) * 1987-07-04 1989-01-12 Fendt & Co Xaver Steuereinrichtung fuer die betaetigung von magnetventilen an nutzfahrzeugen
WO1999000615A1 (fr) * 1997-06-27 1999-01-07 Kongsberg Automotive Ab Dispositif de commande
DE19944179C1 (de) * 1999-09-15 2001-01-11 Daimler Chrysler Ag Wähleinrichtung für ein Automatgetriebe
EP1318336A2 (fr) * 2001-12-05 2003-06-11 Audi Ag Véhicule automobile équipé d'une boíte de vitesses automatique
EP1464875A2 (fr) * 2003-04-04 2004-10-06 ZF Lemförder Metallwaren AG Dispositif de changement de vitesse monostable avec P-position
DE102006042629A1 (de) * 2006-09-05 2008-03-20 ITT Mfg. Enterprises, Inc., Wilmington Schaltknüppel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109204313A (zh) * 2017-06-29 2019-01-15 通用汽车环球科技运作有限责任公司 用于通过组合停车和点火开关来控制变速器和发动机的系统和方法
CN109204313B (zh) * 2017-06-29 2021-06-08 通用汽车环球科技运作有限责任公司 用于通过组合停车和点火开关来控制变速器和发动机的系统和方法
US10436311B2 (en) 2017-08-30 2019-10-08 Nissan North America, Inc. Automatic transmission shifter assembly
US10465793B2 (en) 2017-08-30 2019-11-05 Nissan North America, Inc. Automatic transmission shifter assembly

Also Published As

Publication number Publication date
WO2008110555A3 (fr) 2009-04-02
DE102007011901B4 (de) 2020-12-03
DE102007011901A1 (de) 2008-09-18

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