Luk Getriebe-systeme Gmbh

Luk Getreibe-systeme Gmbh

Andreas Rogg

Andreas Deimel

Reinhard Berger

Gerd Ahnert

Robert Fischer

Norbert Esly

Gunter Hirt

A motor vehicle power train with an engine, a transmission and a clutch includes a means to operate the transmission and/or clutch automatically through at least one electric actuator motor. The electric actuator motor, which acts on an input element of the transmission and/or clutch, comprises a brushless direct current motor.

Emergency facilities for influencing defective constituents of power trains in motor vehicles

The power train of a motor vehicle has an automated transmission and/or an automated clutch, at least one control unit and at least one actor receiving signals from the control unit and serving to control the operation of the automated constituent or constituents of the power train. A reestablishable connection can be interrupted in the event of a malfunctioning of the power train, such as exhaustion of the supply of electrical energy, defectiveness of the actor and/or defectiveness of the automated constituent or constituents and/or defectiveness of the motion transmitting connection or connections between the actor and the automated constituent or constituents. This renders it possible to set the transmission in neutral or into another gear and/or to select the condition of the clutch in such a way that the vehicle can advance to a selected destination under it own power or that it can be towed to such destination.

A power train for us in a motor vehicle has a prime mover (such as a combustion engine), an automated gearbox which transmits torque to the wheels of the vehicle, a friction clutch between the prime mover and the gearbox, a computerized control unit which receives signals from several sensors, and one or more actuators which operate the clutch and/or the gearbox in response to signals from the control unit. The actuator for selecting the gear ratio of the gearbox and for shifting the gearbox into and from selected gears employs two transmissions each of which has a worm gearing receiving torque from a discrete electric motor of the actuator and a spur gearing which transmits motion from the respective worm gearing to a mobile component of the gearbox. The connection between the worm and spur gearings in at least one of the transmissions can comprise a damper cooperating with one or more sensors serving to transmit signals to the control unit.

Actuating apparatus for automated constituents of power trains in motor vehicles

The power train of a motor vehicle has an automated transmission and/or an automated clutch, at least one control unit and at least one actor receiving signals from the control unit and serving to control the operation of the automated constituent or constituents of the power train. A preferably reestablishable connection can be interrupted in the event of a malfunctioning of the power train, such as exhaustion of the supply of electrical energy, defectiveness of the actor and/or defectiveness of the automated constituent or constituents and/or defectiveness of the motion transmitting connection or connections between the actor and the automated constituent or constituents. This renders it possible to set the transmission in neutral or into another gear and/or to select the condition of the clutch in such a way that the vehicle can advance to a selected destination under it own power or that it can be towed to such destination.

The present invention proposes a power train and the operation thereof, suitable for automated actuation of a transmission shiftable between a plurality of gears with a torque transmitting system being actuated automatically at least during a gear change, at least one actuating element operable by at least one drive unit and at least one actuatable shift element being disposed at the transmission side. The invention provides a power train in which a driving connection is disposed between at least one actuatable shift element associated with the transmission and an actuator having at least one drive unit, and at least one presettable elastic means is provided in the power transmitting path of the driving connection between the drive unit and the at least one shift element. Further, at least one additional presettable elastic element can be disposed in the power transmitting path between the at least one actuating element and the at least one shift element on the transmission side.

Method and apparatus for actuating a transmission

The power train of a motor vehicle has an automated transmission and/or an automated clutch, at least one control unit and at least one actor receiving signals from the control unit and serving to control the operation of the automated constituent or constituents of the power train. A preferably reestablisbable connection can be interrupted in the event of a malfunctioning of the power train, such as exhaustion of the supply of electrical energy, defectiveness of the actor and/or defectiveness of the automated constituent or constituents and/or defectiveness of the motion transmitting connection or connections between the actor and the automated constituent or constituents. This renders it possible to set the transmission in neutral or into another gear and/or to select the condition of the clutch in such a way that the vehicle can advance to a selected destination under it own power or that it can be towed to such destination.

Emergency facilities for influencing defective constituents of power

A power train for use in a motor vehicle has a prime mover (such as a combustion engine), an automated gearbox which transmits torque to the wheels of the vehicle, a friction clutch between the prime mover and the gearbox, a computerized control unit which receives signals from several sensors, and one or more actuators which operate the clutch and/or the gearbox in response to signals from the control unit. The actuator for selecting the gear ratio of the gearbox and for shifting the gearbox into and from selected gears employs two transmissions each of which has a worm gearing receiving torque from a discrete electric motor of the actuator and a spur gearing which transmits motion from the respective worm gearing to a mobile component of the gearbox. The connection between the worm and spur gearings in at least one of the transmissions can comprise a damper cooperating with one or more sensors serving to transmit signals to the control unit.

Growing community of inventors

Bühl-Vimbuch, Germany

Andreas Rogg