DE112008001081T5 - Actuating arrangement for a wet clutch of a motor vehicle - Google Patents

Abstract

Actuation arrangement (8) for a wet clutch (3) of a motor vehicle, the actuation arrangement (8) comprising at least one motor (11, 12, 11A, 12A, 11B, 12B), at least partly a movable element (15, 15A, 15B), adapted to act on the wet clutch (3) for engagement or disengagement, at least one power transmission device (10, 10A, 10B) between the engine (11, 12, 11A, 12A, 11B, 12B) and the movable member (15, 15A, 15B) and a container (9) adapted to at least partially form an oil sump for the wet clutch (3), characterized in that at least the power transmission device (10, 10A, 10B) inside this container ( 9), the container (9) having fastening means (17) intended to cooperate with a main housing (1) surrounding the wet clutch (3) and having at least one opening in its lower part Container (9) di e closes the opening and forms a secondary housing into which the oil is forced by gravity ...

Description

The The present invention relates to the field of power transmissions for motor vehicles. It relates in particular to an actuating arrangement, intended to be a wet clutch type clutch, that is, their friction disks run in an oil bath, act.

The patent US 2005/0279603 describes a wet double clutch of the classic type. The dual clutches of this type have two sets of friction plates, each controlled by a diaphragm which cooperates with a clutch release bearing. Each clutch release bearing is hydraulically actuated: pressurized oil sets each of the release bearings in motion.

For certain applications, such as the direct shift couplings, However, it is desirable to have a wet dual clutch which is not hydraulically operated, but with the help of an associated actuator, which is electronically controlled becomes.

Such a coupling is in the document EP 1 610 021 which relates to a wet dual clutch whose clutch release bearings are moved by a fork which is controlled by an electric motor.

task The invention is to improve this type of coupling by a provided to wet clutches adapted actuator whose positioning and lubrication are optimized.

To For this purpose, the invention provides an actuating arrangement ready for a wet clutch of a motor vehicle, wherein the actuator assembly at least one motor, at least partly a moving element that set up for it is to act on the wet clutch to engage or disengage, at least one device for transmitting power between the engine and the moving element and a container, which is adapted, at least partially, an oil pan for the wet clutch, wherein the actuating assembly characterized in that at least the means for Power transmission arranged inside this container is, wherein the container has fastening means to it are intended to interact with a main housing, that surrounds the wet clutch and at least one opening having in its lower part, such that the container the opening closes and a secondary one Housing forms, in which the oil by gravity can flow.

at The known wet clutches are the contact surfaces the discs, which the force between the drive shaft and the Transmission output shaft of the transmission, thanks to an oil pan Lubricated in the lower part of the clutch, with the oil pan located below the discs to catch the oil again.

The This invention utilizes this configuration by providing the actuator assembly equipped with a container that at least partially the Function of an oil sump for the clutch guaranteed. The space requirement of the actuator assembly is thus reduced, and the lubrication of those located in this container Elements are advantageously ensured by the oil, which already lubricates the wet clutch.

• – weist der Behälter wenigstens eine Nahtebene auf, die dazu bestimmt ist, mit wenigstens einer Nahtebene der Nasskupplung zusammenzuwirken;
• – ist das bewegliche Element ebenfalls in dem Behälter angeordnet;
• – weist der Behälter eine Wand auf, an welcher der Motor angebracht ist;
• – ist der Motor außerhalb des Behälters angeordnet, wobei die Einrichtung zur Kraftübertragung mit dem Motor über eine Öffnung verbunden ist, die in der Wand angebracht ist; wobei die Öffnung vorzugsweise abgedichtet ist;
• – weist die Betätigungsanordnung außerdem Mittel zur Abdichtung der Öffnung auf;
• – weist das bewegliche Element an seinem freien Ende wenigstens ein Kugelgelenkelement auf, das dafür eingerichtet ist, wenigstens eine Gabel der Nasskupplung zu steuern;
• – weist die Einrichtung zur Kraftübertragung Mittel zur Umwandlung der Drehbewegung des Motors in eine lineare Bewegung des beweglichen Elements auf;
• – weist die Einrichtung zur Kraftübertragung ein Kompensationselement auf;
• – weist die Betätigungsanordnung außerdem einen zweiten Motor, der einer zweiten Einrichtung zur Kraftübertragung zugeordnet ist, und ein zweites bewegliches Element auf, wobei diese zweite Einrichtung zur Kraftübertragung in dem Behälter angeordnet ist und dieses zweite bewegliche Element vorzugsweise in dem Behälter angeordnet ist, wobei die Betätigungsanordnung somit für die Steuerung einer Nass-Doppelkupplung eingerichtet ist;
• – weist der Behälter in seinem Inneren einen Magneten auf.

According to preferred features, considered individually or in combination:

• The container has at least one seam plane which is intended to cooperate with at least one seam plane of the wet clutch;
• - The movable member is also arranged in the container;
• - The container has a wall on which the motor is mounted;
• - The motor is arranged outside of the container, wherein the means for transmitting power to the motor is connected via an opening which is mounted in the wall; wherein the opening is preferably sealed;
• - The actuator assembly also comprises means for sealing the opening;
• The movable element has at its free end at least one ball-and-socket element adapted to control at least one fork of the wet clutch;
• - The means for transmitting power means for converting the rotational movement of the motor in a linear movement of the movable member;
• - The device for transmitting power has a compensation element;
• The actuating assembly further comprises a second motor associated with a second power transmission means and a second movable member, said second power transmission means being disposed in the container and said second movable member preferably being disposed in the container; Actuator is thus set up for the control of a wet double clutch;
• - The container has a magnet in its interior.

According to another object, the invention provides a wet dual clutch having a main housing surrounding the wet dual clutch and at least one opening in its lower part, wherein the main housing is coupled to an actuator assembly of the type described above, such that the container closes the opening and forms a secondary housing into which the oil can flow by gravity.

The above wet clutch and the above wet double clutch have the same Advantages described above regarding the actuator assembly were.

The the present invention will now be described by way of example, which serve exclusively for illustration and the Limit the scope of the present invention in any way, starting from the following drawings, wherein:

1 a partial sectional side view of a system for power transmission, which is equipped with an actuator assembly according to the invention;

2 a perspective top view of an embodiment of the actuator assembly according to the invention.

1 shows in a schematic and simplified manner a system for power transmission, which is a transmission 2 , a clutch 3 in a clutch housing 1 is arranged, and a drive flywheel 4 that on a power transmission shaft 5 is attached includes.

The power transmission shaft 5 connects the drive shaft to the output shaft of the transmission 2 , these two waves are not shown.

The control unit 6 The clutch includes a fork 7 and an actuator assembly 8th according to the invention. This actuator assembly 8th is set up the free end of the fork 7 horizontal (relative to 1 ), which causes it to pivot and to control the diaphragm (not shown) of the clutch to perform the engagement or disengagement operation.

The actuator assembly 8th here has an electric motor 11 that a reduction gearbox 12 is assigned, a power transmission device 10 and at least part of a movable element 15 on.

Alternatively, the engine can 11 alone, without reduction gear 12 , if its properties permit. The term "motor" in the present application means both an engine alone and one of an engine 11 and a reduction gear 12 existing arrangement.

The engine, so here from a motor 11 and a reduction gear 12 is formed with the power transmission device 10 connected, which is adapted to the rotational movement of the reduction gear 12 to transform it into a horizontal linear motion, which is the movement of the moving element 15 allows that with the fork 7 is connected, whose pivoting is controlled in this way.

The power transmission device 10 allows to ensure this motion conversion by known means, such as a screw-nut system or a rod-crank system.

The power transmission device 10 may also include a spring compensation system or hydraulic compensation system. These systems are known in the art and allow energy to be released upon relaxation of the coupling membrane to subsequently facilitate the compression of the membrane by releasing this energy.

The actuator assembly 8th also has a container 9 on top of a wall 13 at which the engine ( 11 . 12 ) and the power transmission device 10 are attached.

The actuator assembly 8th is on the main body 1 the clutch 3 exclusively over the container 9 by means of fastening means consisting, for example, of screws (not shown) adapted to be inserted into openings (not shown).

In this configuration, the container replaces 9 partly the clutch housing 1 in the part that is commonly called "oil sump", that is, the hollow part, in which the one for lubricating the wet clutch 3 Serving oil can flow and stand by gravity when the vehicle is stationary. A certain volume of oil is therefore in the container 9 Under normal operating conditions of the vehicle always present.

Certain elements of the actuator assembly are thus in the oil bath of the clutch 3 , that is, here the power transmission device 10 and at least partially the movable element 15 ,

2 shows an actuating arrangement 8th according to an embodiment of the invention. It is an actuating arrangement which is set up for a wet double clutch and is shown here alone.

The elements of 2 which certain elements of 1 correspond, bear the same reference numerals.

This actuator assembly 8th has two motors 11A . 11B , the two reduction gears 12A . 12B are assigned, and two power transmission devices 10A . 10B passing through two bars 14A . 14B with two moving elements 15A . 15B are connected to. This double arrangement allows the moving elements 15A . 15B controlling the two forks and / or the two bearings, which has a wet double clutch.

The moving elements 15A . 15B have here a hemispherical shape, which makes them ball joint elements adapted to form a ball and socket joint with the forks for which they are intended.

2 shows the details of the attachment of the various elements to the container 9 , The arrangements engine 11A . 11B - reduction gear 12A . 12B are on the wall 13 outside the container 9 attached while the power transmission devices 10A . 10B on the same wall 13 are mounted, but within the container 9 , An opening (not visible in the figures) connects each motor to the corresponding power transmission device. It may be provided a seal to the tightness of the container 9 ensure in the area of these openings.

The container 9 has a seam plane 16 which is traversed by fasteners, which here are holes 17 exist, which are provided for the passage of screws (not shown).

The actuator assembly 8th can therefore be attached to the main body 1 be attached, where there is an opening of this main body 1 thanks to the seam plane that is set up for it, with a corresponding seam plane on the main body 1 cooperate, sealed in a sealed manner, with the possible arrangement of a seal in between.

The actuator assembly can in this way on the main housing 1 exclusively with these fasteners 17 be attached to the seam plane 16 assigned.

Advantageously, a magnet 18 in the container 9 In order to attract chips or other ferrous waste that may be present in the oil, and thus to keep them away from the elements of the actuator assembly, which run in the oil bath.

Summary

The invention relates to an actuating arrangement ( 8th ) for a wet clutch ( 3 ) of a motor vehicle, wherein the actuating arrangement ( 8th ) an engine ( 11 . 12 ), at least in part a movable element ( 15 ), which is adapted for engaging or disengaging the wet clutch ( 3 ), and a power transmission device ( 10 ) between the engine ( 11 . 12 ) and the movable element ( 15 ), while also comprising a container ( 9 ), which is adapted to an oil sump for the wet clutch ( 3 ), wherein at least the power transmission device ( 10 ) inside this container ( 9 ) is arranged.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - US 2005/0279603 [0002]
• - EP 1610021 [0004]

Claims (12)

Actuating arrangement ( 8th ) for a wet clutch ( 3 ) of a motor vehicle, wherein the actuating arrangement ( 8th ) at least one engine ( 11 . 12 . 11A . 12A . 11B . 12B ), at least in part a movable element ( 15 . 15A . 15B ), which is adapted for engaging or disengaging the wet clutch ( 3 ), at least one power transmission device ( 10 . 10A . 10B ) between the engine ( 11 . 12 . 11A . 12A . 11B . 12B ) and the movable element ( 15 . 15A . 15B ) and a container ( 9 ), which is adapted, at least in part, an oil sump for the wet clutch ( 3 ), characterized in that at least the power transmission device ( 10 . 10A . 10B ) inside this container ( 9 ) is arranged, wherein the container ( 9 ) Fastening means ( 17 ), which are intended to be connected to a main housing ( 1 ), the wet clutch ( 3 ) and in its lower part has at least one opening that the container ( 9 ) closes the opening and forms a secondary housing into which the oil can flow by gravity. Actuating arrangement ( 8th ) according to claim 1, wherein the container ( 9 ) at least one seam plane ( 16 ), which is intended to be connected to at least one seam plane of the wet clutch ( 3 ) to cooperate. Actuating arrangement ( 8th ) according to claim 1 or 2, wherein the movable element ( 15 . 15A . 15B ) also in the container ( 9 ) is arranged. Actuating arrangement ( 8th ) according to one of claims 1 to 3, wherein the container ( 9 ) a wall ( 13 ) on which the engine ( 11 . 12 . 11A . 12A . 11B . 12B ) is attached. Actuating arrangement ( 8th ) according to the previous claim, wherein the engine ( 11 . 12 . 11A . 12A . 11B . 12B ) outside the container ( 9 ) and with the power transmission device ( 10 . 10A . 10B ) is connected via an opening in the wall ( 13 ), wherein the opening is preferably sealed. Actuating arrangement ( 8th ) according to the preceding claim, wherein it also has means for sealing the opening. Actuating arrangement ( 8th ) according to one of the preceding claims, wherein the movable element ( 15 . 15A . 15B ) has at its free end at least one ball joint element which is adapted to at least one fork ( 7 ) the wet clutch ( 3 ) to control. Actuating arrangement ( 8th ) according to one of the preceding claims, wherein the power transmission device ( 10 . 10A . 10B ) Means for converting the rotational movement of the motor into a linear movement of the movable element ( 15 . 15A . 15B ) having. Actuating arrangement ( 8th ) according to one of the preceding claims, wherein the power transmission device ( 10 . 10A . 10B ) has a compensation element. Actuating arrangement ( 8th ) according to any one of the preceding claims, further comprising a second motor ( 11B . 12B ), of a second power transmission device ( 10B ) and a second movable element ( 15B ), said second power transmission device ( 10B ) in the container ( 9 ) and this second movable element ( 15B ) preferably in the container ( 9 ) is arranged, wherein the actuating arrangement ( 8th ) is thus set up for the control of a wet double clutch. Actuating arrangement ( 8th ) according to one of the preceding claims, wherein the container ( 9 ) has a magnet in its interior. A wet dual clutch having a main housing surrounding the wet dual clutch and having at least one opening in its lower part, the main housing being provided with an actuating arrangement ( 8th ) according to claim 10, that the container ( 9 ) closes the opening and forms a secondary housing into which the oil can flow by gravity.