Luk Lamellen Und Kupplungsbau Beteiligungs Kg

Schaeffler Technologies Ag & Co .Kg

Burkhard Pollak

Reinhard Berger

Alexander Schweizer

Gerd Ahnert

Dietmar Lang

Ian Richard Joseph Bates

Robert Fischer

Gunter Hirt

Christian Rieger

Klaus Kuepper

Viggo Lauritz Norum

Boris Serebrennikov

Lars Lein

Juergen Benz

Klaus Küpper

Jörg Metzger

Jürgen Benz

Geir Huseby

James Antony Lethbridge

In Ho Song

Youngkeun Park

Carsten Bünder

Terry Morgan

A twin clutch system for a transmission, particularly for a twin clutch transmission, including at least two clutches each having a clutch cover to which at least one disengaging system that actuates the clutches is fastened. According to the invention, a fastening element is provided that couples both coupling covers.

Twin clutch system for a transmission, particularly for a twin clutch transmission

This invention relates to a method for controlling a motor vehicle drivetrain system which has a drivetrain as well as a combustion engine for driving this drivetrain and an electronic engine control unit as well as an electronic transmission control unit, whereby, if the electronic transmission control unit fails or when the electronic engine control unit loses communication with the electronic transmission control unit, the permissible engine torque of the combustion engine is limited, as well as a safety system for a motor vehicle by means of which the method is controlled, as well as a motor vehicle with such a safety system.

Method for controlling a motor vehicle drivetrain system

A gearbox actuator comprising a selector shaftwhich is arranged in a housing and is driven by a drive. A shift fingerand disengaging shaped elementsused to actuate gearshift rails are arranged on the selector shaft, and jibs for-supporting and guiding the gearshift rails are arranged on the housing. The gearbox actuatorcomprises the central selector shaftmounted in bearing elementsand comprises a shift fingerand two disengaging shaped elementsarranged in the center thereof, at a distance corresponding to the width of a channel. Preferably, the selector shaftis driven by a brushless motorby means of a double planetary stageand a toothed segmentwhich engages a toothed wheelthat is preferably positioned in a housing element. A preferably second brushless motordrives a sliding elementby means of spindle, the sliding element displacing the shift fingerand the disengaging shaped elementson the selector shaft

Gearbox actuator comprising a bearing for the gearshift rails

A method of controlling a twin-clutch transmission with a first partial transmission with which are associated a first engine clutch and a first group of gears, and a second partial transmission with which are associated a second engine clutch and a second group of gears, said method containing the step of engaging a forward gear associated with one partial transmission and a reverse gear associated with the other partial transmission when the transmission, with the motor vehicle at a standstill, is in a non-driving position.

Method for controlling a twin-clutch transmission

Methods and devices for actuating a parking brake in a gearbox which is actuated in an automated manner, whereby gear changes are carried out using at least one electrically driven actuator, gear positions can be selected by using a selector device, and the parking brake can be activated by using the selector device when the vehicle is stationary or moving slowly. A vehicle provided with an additional gearbox. An ignition key can only be removed, when the gearbox is in a P state and the additional gearbox is not in the N state. A further method and device, whereby the additional gearbox can only be shifted in the N state when the gearbox is not in the P state. Further methods and a device in which automated manual gearboxes, especially parallel gearboxes, are controlled in such a way that the vehicle can be safely parked.

Method and device for operating especially an automatic or automated gearbox comprising a parking brake and a runaway locking mechanism

The methods and devices for actuating a parking brake in a gearbox which is actuated in an automated manner, whereby gear changes are carried out by means of at least one electrically driven actuator, gear positions can be selected by means of a selector device, and the parking brake can be activated by means of the selector device when the vehicle is stationary or moving slowly. The invention also relates to a vehicle provided with an additional gearbox. The ignition key can only be removed, when the gearbox is in the P state and the additional gearbox is not in the N state. The further method and device, whereby the additional gearbox can only be shifted in the N state when the gearbox is not in the P state. The methods and a device for carrying out the same, by automated manual gearboxes, especially parallel gearboxes, are controlled in such a way that the vehicle can be safely parked and can set off in a reliable and comfortable manner.

The invention relates to a drivetrain comprising an internal combustion engine, at least one friction clutch having at least one disengagement device with a pressure relief device and a transmission.

Drivetrain

An automated transmission system includes a transmission brake which is used to apply a braking torque to the transmission, while the engine torque is negative and a transmission clutch is disengaged to effect a gear downshift, in order to avoid acceleration of the vehicle when the clutch is released and abrupt deceleration of the vehicle upon completion of the gear downshift.

Automated transmission systems

A power transmission for a motor vehicle. The transmission includes a plurality of transmission ratio steps defined by pairs of gear carried on parallel shafts, and final output mechanisms for engaging desired transmission ratio steps. The final output mechanisms are operable for controlling the engagement of respective transmission ratio steps to minimize tractive force interruption by allowing rapid gear changes to be effected to reduce the times between shifts of gears. By sensing accelerator pedal position and vehicle speed a new transmission ratio step to be subsequently engaged can be pre-selected while an engaged gear remains engaged.

Transmission

A parallel manual transmission for a four-wheel drive is provided and includes two input shafts, each of which can be non-rotatably coupled via its own clutch to a shaft that is powered by a drive engine.

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Bühl, Germany

Burkhard Pollak