WO2006031118A1 - Dispositif d'embrayage - Google Patents

Dispositif d'embrayage Download PDF

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Publication number
WO2006031118A1
WO2006031118A1 PCT/NO2005/000253 NO2005000253W WO2006031118A1 WO 2006031118 A1 WO2006031118 A1 WO 2006031118A1 NO 2005000253 W NO2005000253 W NO 2005000253W WO 2006031118 A1 WO2006031118 A1 WO 2006031118A1
Authority
WO
WIPO (PCT)
Prior art keywords
gearbox
actuator
clutch
shift mechanism
actuator device
Prior art date
Application number
PCT/NO2005/000253
Other languages
English (en)
Inventor
Lucien LÉNÉRAND
Original Assignee
Kongsberg Automotive As
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 Kongsberg Automotive As filed Critical Kongsberg Automotive As
Publication of WO2006031118A1 publication Critical patent/WO2006031118A1/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/083—Actuators therefor
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0221—Valves for clutch control systems; Details thereof

Definitions

  • the present invention relates to an actuator device for moving a clutch respectively out of an engaged position in order to break the rotational transmission between an engine's driving shaft and a driven shaft, or into an engaged position in order to establish rotational transmission between the engine's driving shaft and the driven shaft.
  • the clutch's actuator device comprises an actuator part and a valve unit for control of the actuator part.
  • the clutch is enclosed by a clutch housing and a gearbox which is enclosed by a gearbox housing.
  • the clutch is located between the vehicle's engine and the gearbox.
  • the gearbox comprises a plurality of gear wheels, possibly with associated shift sleeves and synchronising mechanisms or other means suitable for establishing a connection between some of the gear wheels and shift forks that form part of a shift and control unit hereinafter called a shift mechanism.
  • the shift mechanism is included in the gearbox and receives information concerning gear selection from the gear operating unit. This information determines which of the shift forks have to be moved to perform a gear shift, thereby determining with which gear ratio power should be transmitted from the engine to the vehicle's driving wheels. Information may be transmitted to the shift mechanism concerning manual gear selection or automatic gear selection.
  • the function and degree of complexity of the shift mechanism may vary depending on the type of gearbox and gear system in which it is to be employed.
  • the use is known of a servomechanism which is directly attached to the clutch housing and connected to a master cylinder at the clutch pedal.
  • the actuator device receives a pressurised fluid from the master cylinder and additional pressurised fluid is supplied to the actuator part from a reservoir depending on supply of fluid from the master cylinder or the position of the pedal.
  • a further known arrangement is to connect a servomechanism directly to the master cylinder, where pressurised fluid is transferred to a concentric slave cylinder at the clutch.
  • the actuator device may be provided as a separate unit (In-Line Booster) between master cylinder and clutch. From the actuator device pressurised fluid may be passed to a concentric central slave cylinder in the clutch housing.
  • In-Line Booster In-Line Booster
  • a central slave may be employed with integrated servomechanism or servo valve placed on the outside as described, for example, in GB 2121504.
  • GB 2121504 it is shown how a duct for hydraulic fluid to the central slave is protected by placing the duct in an extension of the slave clamped between the clutch housing and the gearbox housing.
  • a servo valve for a pneumatic central slave is described located partly inside and/or outside the clutch housing.
  • SU 1594000 describes a combined pneumatic/hydraulic central slave with valve outside the clutch housing.
  • US 6234290 the servo valve mechanism is protected against transmission of excess pressure from the pedal master.
  • the clutch servomechanism is a separate unit where the price is not necessarily only dependent on the cost of the components, but also on logistics, storage space, service, etc.
  • a clutch servomechanism that is provided integrated in a central slave has removed the space problem, but introduces instead problems associated with unwanted fluids (mineral oil or brake fluid) inside the clutch housing in the event of a leak.
  • the clutch housing will also have a very high internal temperature, thus making it difficult and expensive to design a valve unit that can be placed inside the clutch housing.
  • a further object of the present invention is to provide a solution that facilitates service of the actuator.
  • the actuator device's actuator part may also be located in such a manner that it also forms a part of the shift mechanism.
  • This solution will be particularly appropriate where a lever is employed for operating the clutch. Transmission of the actuator part's movement to the clutch's lever can be undertaken by a transmission part, preferably a rod element, connecting the actuator part and the clutch's lever.
  • the actuator device's valve unit may be located in such a manner that it forms a part of the gearbox's shift mechanism, while the actuator part is located in the clutch housing.
  • the actuator part may then preferably be composed of a concentric slave cylinder.
  • the valve unit controls the actuator part by devices for signal transmission provided between the gearbox and the clutch housing. These devices may be bores or pipes from the gearbox to the clutch housing for transfer of pressurised fluid.
  • a feedback for example a position feedback or a power feedback.
  • the feedback can be composed of an element preferably a rod element for detecting the position in which the various parts of the actuator part are located.
  • the shift mechanism is arranged releasably in the gearbox so that the valve unit and possibly the actuator part are removed from the gearbox by removing the shift mechanism from the gearbox.
  • the actuator device may be arranged in such a manner that the valve unit and/or the actuator part can be removed from the gearbox, while the shift mechanism remains in the gearbox.
  • the actuator device is provided in such a manner that the transmission part or the feedback remain in position in the gearbox housing/clutch housing when removing the shift mechanism.
  • the valve unit and the actuator part contained in the actuator device may be composed of various types of components which are known per se, since it is their position in the gearbox and the necessary components and means for permitting this positioning that is the key feature of the invention.
  • both hydraulic and pneumatic solutions or a combination thereof may be employed in implementing the invention.
  • valve unit may be electropneumatically controlled by an electrical signal, or controlled by a hydraulic signal in the form of a change in pressure in the hydraulic fluid transferred from a master cylinder. More mechanical solutions, optical signals or fluid other than hydraulic fluid may also be employed.
  • the actuator part may, for example, be composed of a cylinder unit comprised of one or more cylinder cavities wherein is mounted a piston, possibly equipped with a piston rod.
  • Figure 1 illustrates a first embodiment of the invention depicted by a sectional view through gearbox and clutch.
  • Figure 2 is a perspective view of the shift mechanism and a sectional view through the actuator part.
  • Figures 3a, 3b, 3c are sectional views of the connection between the clutch's lever and the components located in the shift mechanism.
  • Figure 4 is a sectional view of a second embodiment of the invention where the connection between the clutch's slave cylinder and the components placed in the shift mechanism are illustrated.
  • a gearbox 1 is illustrated by gearbox housing Ia and shift mechanism 2.
  • An actuator device illustrated here by an actuator part 1 is located integrated in the shift mechanism 2.
  • a valve unit, which is not seen in figure 1, is also integrated in the shift mechanism 2.
  • the actuator part 1 is composed of a hydraulic part Ia and a pneumatic part, illustrated here by piston Ib.
  • the clutch's 3 lever 3a is connected to the actuator part 1 by a transmission part 4 in order thereby to transmit movement from the actuator part 1 to the clutch 3.
  • the clutch's 3 clutch housing is illustrated by 3b.
  • Figure 2 illustrates the shift mechanism 2 as seen from below.
  • the shift mechanism 2 is shown equipped with shift forks 2a and the actuator part 1 is shown attached to the shift mechanism 2.
  • the actuator part 1 has a slightly different design to that illustrated in figure 1, the hydraulic part Ia being mounted coaxially with the air piston Ib in order to minimise space requirements in the length.
  • Figure 3a illustrates the shift mechanism located in the gearbox 1 with the lever 3a and transmission part 4 only illustrated schematically.
  • Figures 3b and 3c illustrate examples of attachment of the clutch's lever 3a to the attachment mechanism 2 by means of a rod-shaped transmission part 4.
  • the transmission part 4 is provided with a first cavity 4a at one end for receiving an end of the lever 3a and a recess 4b at its other end.
  • the actuator part 1 (which is not shown in this figure 3a, 3b) can be attached to the transmission part 4 at the recess 4b.
  • the attachment mechanism 2 including the actuator part 1 can easily be removed from the gearbox 1 , the actuator part 1 being lifted straight up from the groove 4b.
  • the transmission part 4 is shown attached to the clutch housing 3b or the common wall between the clutch wall and the gearbox housing.
  • the transmission part is shown attached both to the clutch housing 3b and the gearbox housing 1 a.
  • FIG. 4 illustrates an embodiment where the valve unit 5 is shown attached to the shift mechanism 2.
  • the actuator part 1 in the form of a pneumatic central slave cylinder comprising a cylinder cavity Ic and cylinder piston Ib is shown placed in the clutch housing 3b.
  • the valve unit 5 transfers the desired quantity of pressurised pneumatic fluid to the actuator part's cylinder cavity Ic in order to move the cylinder piston Ib forwards or backwards, thereby bringing the clutch out of engagement or into engagement.
  • the transfer of the pressurised fluid is carried out through non-illustrated bores or pipes/hoses extending from the gearbox to the clutch housing.
  • a position feedback 6 illustrated here as a rod element connecting the valve unit 5 and the clutch 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

La présente invention concerne un dispositif actionneur pour un embrayage, l'embrayage étant contenu dans une cloche d'embrayage située entre le moteur du véhicule et une boîte de vitesses contenue dans un carter de boîte de vitesses. La boîte de vitesses comprend une pluralité d'engrenages et un mécanisme de changement auquel sont transmises les informations concernant la sélection de la vitesse en provenance de l'unité de mise en œuvre de la boîte, ledit mécanisme de changement étant équipé d'une ou plusieurs fourchettes de boîte reliées à certains des engrenages pour effectuer un changement de vitesse. Le dispositif actionneur comprend une partie actionneur et une unité de soupape pour commander la partie actionneur, ladite unité de soupape étant placée de telle manière qu'elle forme une partie du mécanisme de changement de la boîte de vitesses.
PCT/NO2005/000253 2004-09-17 2005-07-04 Dispositif d'embrayage WO2006031118A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0402271-1 2004-09-17
SE0402271A SE528205C2 (sv) 2004-09-17 2004-09-17 Manöveranordning för en koppling

Publications (1)

Publication Number Publication Date
WO2006031118A1 true WO2006031118A1 (fr) 2006-03-23

Family

ID=33308783

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2005/000253 WO2006031118A1 (fr) 2004-09-17 2005-07-04 Dispositif d'embrayage

Country Status (2)

Country Link
SE (1) SE528205C2 (fr)
WO (1) WO2006031118A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121504A (en) 1982-05-28 1983-12-21 Automotive Products Plc Hydraulic slave cylinder for clutch release
DE3319899A1 (de) 1983-06-01 1984-12-06 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Pneumatischer kupplungsverstaerker
US4601375A (en) * 1982-07-06 1986-07-22 Honda Giken Kogyo Kabushiki Kaisha Clutch apparatus for vehicles
US4719812A (en) * 1985-08-29 1988-01-19 Kubota, Ltd. Transmission casing including a hydraulic clutch
SU1594000A1 (ru) 1987-09-23 1990-09-23 Московский автомобильный завод им.И.А.Лихачева Гидропневматический усилитель привода управлени сцеплением транспортного средства
US5009125A (en) * 1989-01-26 1991-04-23 Kubota Ltd. Speed control structure
DE19716600A1 (de) 1996-06-12 1997-12-18 Mannesmann Sachs Ag Betätigungseinrichtung für die Betätigung, insbesondere pneumatische Betätigung einer Reibungskupplung
US6196369B1 (en) 1998-01-07 2001-03-06 Mannesmann Sachs Ag Actuating device for the actuation, in particular pneumatic actuation of a friction clutch
FR2798179A1 (fr) * 1999-09-06 2001-03-09 Renault Boite de vitesses compacte et dispositif de commande d'une telle boite de vitesses
US6234290B1 (en) 1998-08-06 2001-05-22 Mannesmann Sachs Ag Actuating installation for pneumatic clutch actuation with overload protection and/or incorrect-operation protection
US20010002642A1 (en) 1999-12-07 2001-06-07 Andreas Konrad Actuating device for the actuation, in particular pneumatic actuation, of a friction clutch
DE10255179A1 (de) * 2002-11-27 2004-06-17 Zf Friedrichshafen Ag Vorrichtung zur Druckmittelversorgung von Stellmitteln eines automatisierten Schaltgetriebes

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121504A (en) 1982-05-28 1983-12-21 Automotive Products Plc Hydraulic slave cylinder for clutch release
US4601375A (en) * 1982-07-06 1986-07-22 Honda Giken Kogyo Kabushiki Kaisha Clutch apparatus for vehicles
DE3319899A1 (de) 1983-06-01 1984-12-06 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Pneumatischer kupplungsverstaerker
US4719812A (en) * 1985-08-29 1988-01-19 Kubota, Ltd. Transmission casing including a hydraulic clutch
SU1594000A1 (ru) 1987-09-23 1990-09-23 Московский автомобильный завод им.И.А.Лихачева Гидропневматический усилитель привода управлени сцеплением транспортного средства
US5009125A (en) * 1989-01-26 1991-04-23 Kubota Ltd. Speed control structure
DE19716600A1 (de) 1996-06-12 1997-12-18 Mannesmann Sachs Ag Betätigungseinrichtung für die Betätigung, insbesondere pneumatische Betätigung einer Reibungskupplung
US6196369B1 (en) 1998-01-07 2001-03-06 Mannesmann Sachs Ag Actuating device for the actuation, in particular pneumatic actuation of a friction clutch
US6234290B1 (en) 1998-08-06 2001-05-22 Mannesmann Sachs Ag Actuating installation for pneumatic clutch actuation with overload protection and/or incorrect-operation protection
FR2798179A1 (fr) * 1999-09-06 2001-03-09 Renault Boite de vitesses compacte et dispositif de commande d'une telle boite de vitesses
US20010002642A1 (en) 1999-12-07 2001-06-07 Andreas Konrad Actuating device for the actuation, in particular pneumatic actuation, of a friction clutch
DE10255179A1 (de) * 2002-11-27 2004-06-17 Zf Friedrichshafen Ag Vorrichtung zur Druckmittelversorgung von Stellmitteln eines automatisierten Schaltgetriebes

Also Published As

Publication number Publication date
SE528205C2 (sv) 2006-09-26
SE0402271L (sv) 2006-03-18
SE0402271D0 (sv) 2004-09-17

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