Luk Lamellen Und Kupplungsbau Beteiligungs Kg

Luk Getriebe-systeme Gmbh

Schaeffler Technologies Ag & Co .kg

Luk Getreibe-systeme Gmbh

Norbert Esly

Matthias Ehrlich

Robert Fischer

Wolfgang Reik

Gunter Hirt

Andreas Rogg

Volker Kretz-Busch

Viktor Franz

Reinhard Berger

Matthias Gramann

Karl-Ludwig Kimmig

Juergen Gerhart

Joachim Hirt

Julian Botiov

Detlef Noack

Martin Meunier

Jens Benndorf

Roland Braun

A hydrostatic actuator and an arrangement for attaching it to a receiving component are provided. The hydrostatic actuator has a master cylinder containing a housing and a piston movable axially within the housing which acts on a pressure chamber filled with a pressurizing agent. The piston is driven by a rotary-driven electric motor having a stator and a rotor, by a rolling planetary transmission that converts the rotary drive to an axial motion. In order to be able to produce such a hydrostatic actuator with little need for construction space, cost-effectively and with better quality, a supporting of the rolling planetary transmission is simplified, and the cooling and shielding of an electronic controller and the pressure behavior of the hydrostatic actuator is improved.

Hydrostatic actuator and arrangement of a hydrostatic actuator in a motor vehicle

The invention relates to a hydrostatic actuator, having a master cylinder including a housing and a piston, which is axially mountable in the housing and which pressurizes a pressure chamber filled with pressure medium, a planetary rolling-contact gear system that converts a rotary drive into an axial motion and that has a sleeve, a gear-driven spindle, and planetary rolling elements that roll therebetween, and an electric motor that drives the planetary rolling-contact gear system and that has a stator rigidly connected to a housing and a rotor that can be rotated relative to the stator. In order to optimize the installation space, the pressure chamber is annular and the planetary rolling-contact gear system is arranged radially within the pressure chamber.

Hydrostatic clutch actuator

An actuator device for a motor vehicle transmission, the motor vehicle transmission having:&#x2014;at least two shafts;&#x2014;a plurality of gear sets for the achievement of different gear steps;&#x2014;a plurality of shift mechanisms that may be operated to produce or release a rotationally fixed shaft-gear connection; the actuator device having:&#x2014;a plurality of output elements that can be moved in order to operatively engage in shift mechanisms of the transmission&#x2014;a main actuator device having at least one main actuator element that is movable for the engagement of gears, the main actuator element preferably being an output element&#x2014;a secondary actuator device having at least one movably mounted secondary actuator element, which is movable for the disengagement of gears, the at least one secondary actuator element preferably being an output element, the main actuator device and the secondary actuator device cooperating to produce controlled relative movements of at least two output elements.

Actuation system for a gearbox

The invention relates to a gear actuator for a motor vehicle transmission design, that has several ratio steps for forming gears, whereby the gear actuator has a gear-shift shaft that is mounted so that it can rotate for the shifting of gears and that is mounted so that it can slide axially for the selection of gears and whereby the gear actuator also has a shift gate, whereby the shift gate also has a fixed mounted first shift gate part that is especially a shaft or an axle, as well as a second shift gate part that is mounted so that it can move axially and move in rotation or swivel, which is especially a disk or plate and is coupled with the gear-shift shaft and whereby the first shift gate part has several axially spaced recesses, into which the second shift gate part can be swiveled depending on its axial position.

Gear actuator for a motor vehicle transmission design, motor vehicle transmission design with a gear actuator as well as motor vehicle drive train with a motor vehicle transmission design

The invention relates to a transmission device for motor vehicles, wherein the transmission device has several wheel sets for forming gears and wherein the transmission device has an internal gear shift and a gear actuator for actuating the internal gear shift for engaging and disengaging gears, and wherein the transmission device has a transmission housing in which the wheel sets provided for forming gears are held, wherein the gear actuator has two separate function modules, of which a first one is a drive module and of which a second is an actuating module, wherein the drive module has at least one, especially electronically-controlled, drive device like an electric motor and wherein during engaging and disengaging gears, the actuating module is in the power flow between the drive module and the internal gear shift and wherein the actuating module and the drive module are mounted separately on the transmission housing.

Transmission device for motor vehicles, gear actuator, axial/radial bearing unit, and process for manufacturing a motor vehicle transmission device

A lever system for actuating a clutch in the power train of a motor vehicle or of a disc brake, including: a lever () with a first side () rotatably supported on a pivot () and with a side () in functional connection with a pressing means (). The lever () rests on a movable fulcrum () provided by a moveable support unit () that is displaceable in radial direction relative to the rotation axis of the clutch or the disc brake and which is displaceable using a motor-driven () spindle (. The moveable support unit () rests on a raceway () and includes two roller sets () each with rollers (). Each of the roller set () includes at least three rollers () and at least two of the rollers () include approximately equal first diameters.

Lever system for actuating a clutch

A motor vehicle transmission actuator for operation of a motor vehicle transmission, including gearsets which form different ratios, whereby the transmission actuator has a threaded shaft with at least one first threaded section, embodied as a right-handed thread and at least one second threaded section, embodied as a left-hand thread with just one electric motor for driving in the selection direction and the switching direction.

Motor vehicle transmission actuator for operating a motor vehicle transmission

The invention relates to a transmission device for a motor vehicle comprising a plurality of connecting elements that are mounted in an axially movable manner and are each provided with a shift mouthpiece and comprising an actuating device having a control shaft that is mounted in a swiveling and axially movable manner, on which is provided a main control element and at least one secondary control element, the at least one secondary control element having functional regions for a movement in the same direction as well as functional regions for movement in the opposite direction, the at least one secondary control element extending in its neutral position essentially perpendicular to the direction of movement of the connecting elements, and, with respect to this neutral position on the secondary control element and on at least one shift mouthpiece, the particular functional regions for the movement in the same direction being designed with a bent shape and being axially symmetric to the particular, likewise bent functional regions for the movement in the opposite direction, and specifically with respect to a plane that is defined by the axis of rotation of the control shaft and the direction of movement of the connecting element.

Transmission device for a motor vehicle

The invention relates to a transmission device for a motor vehicle that has a plurality of gear sets that form gear ratio steps, final control mechanisms being provided and an actuation device being provided for the actuation of the final control mechanisms that has a plurality of drivable main control elements, especially shift fingers, to act on final control mechanisms for the engagement of gear ratio steps, it being possible to act on at least one final control mechanism via either a first or a second main control element, these two main control elements of the final control mechanism being moved as a function of the main control element that acts on this final control mechanism in one of two different directions, especially opposite directions, when in this context there is identical drive direction, especially identical rotational direction; and an actuation device and a method for the electronically controlled determination of reference positions of an actuation device.

The invention relates to a drive arrangement with a unit comprising stator, rotor and fixed bearing in which a shaft of the motor is mounted, housed in a motor housing. An injection molded piece comprises a plug piece on an external annular piece, which comprises a branch supply line, connected to the coil of the stator and a sensor line connected to a sensor circuit board, whereby said sensor circuit board comprises at least one sensor. The injection molded piece further comprises an inner annular piece in which the fixed bearing is arranged on the side axially opposed to the shaft output of the drive arrangement.

Drive arrangement with a fixed bearing

The invention relates to a motor vehicle having a power train wherein the engine can drive an automatic transmission by way of an automatic clutch. The gear ratio of the transmission is selectable by a first drive and a second drive is employed to shift the transmission into the selected gear. The two drives are mounted on the transmission case by way of a common base plate. Novel kinematic transmission lines connect the drives to the ratio selecting and gear shifting components of the transmission. One of the transmission lines employs a transmission stage, a carrier for translation of rotary movement into axial movement, and an element for transfer of axial movement to the transmission. The translation of movement of the drive in a selection process takes place by way of two transmission stages.

Motor vehicle with automatic transmission

A motor vehicle includes a drive motor, a torque transfer device with an actuating device, a gearbox with at least one shift shaft, an actuating device, and a control device. The actuation of the torque transfer device and the gearbox is automatically controlled through the control device or an input thereto. The gearbox actuation includes a first and second movement component, e.g., a rotational and translation movement. The gearbox actuating device has a first and second drive dedicated to the first and second movement components. A multi part element transfers movement to the shift shaft and includes at least one axial groove for the axial guidance and rotational movement transfer, and at least one ring groove or ring groove segment for the rotational guidance and axial movement transfer. The multi part element includes at least one sleeve like element having a toothed spline, a follower, and a toothed rod.

Motor vehicle with gearbox

An actuating device for an operating element such as a clutch ( ) in the power train between the engine ( ) and the driven wheels ( ) of a motor vehicle consists of a parallel arrangement of at least two actuators ( ) that are controlled by an electronic control device ( ) so that they can work simultaneously or one after the other, or with a partial time overlap where one starts to work after an initial current surge to the other has subsided.

Actuating device with two parallel mounted actuators

The actuating arrangement includes a torque transmitting system that includes a first device for initiating, discontinuing or regulating the transmission of torque. A transmission includes a second device for initiating a gear shifting operation within one of a plurality of gear shifting paths. The transmission further includes a third device for initiating the gear ratio selecting operation among the gear shifting paths. An electronic control unit is operatively connected to at least one actor. The at least one actor activates in a predetermined manner, one of the first device, second device and third device for the initiation of the transmission of torque, gear shifting or gear ratio selecting operation.

Growing community of inventors

Buehl, Germany

Norbert Esly