Luk Lamellen Und Kupplungsbau Beteiligungs Kg

Eaton Corporation

Eaton Cummins Automated Transmission Technologies, LLC

Michael Gallion

Jeffrey S Dunfee, Ii

Simon Fitzgerald

Andrew Hart

Reinhard Berger

Martin Vornehm

Martin Zimmermann

Alexander Schweizer

Christian Rieger

Marc Hauptmann

Johannes Moosheimer

Jörg Metzger

Frank Bast

Florian Strack

A method of controlling a dual clutch transmission power on up shift including an on-coming clutch and an off-going clutch. The method includes implementing a prep phase comprised of decreasing torque on the off-going clutch, monitoring the off-going clutch speed to determine a slip point, and adding a bump torque to the off-going clutch when the off-going clutch reaches the slip point. The method implements a torque phase transferring torque from the off-going clutch to the on-coming clutch by increasing torque on the on-coming clutch towards an engine torque, decreasing torque on the off-going clutch, and simultaneously keeping the combination of torques greater than the slip point.

Method for non-microslip based dual clutch transmission power on up shift

Methods and apparatus are taught for controlling the operation of a power train in a motor vehicle (), which may include controlling a clutch actuating mechanism () so as to open a clutch () in a vehicle pull mode. Then, a transmission () may be changed from a first gear position to a second gear position via a neutral position by moving a transmission actuator. At or about the same time, the ignition angle of a spark-ignited combustion engine () is preferably shifted during the gear change step to cause the combustion engine to generate a negative engine torque. As a result, engine speed is decreased when the transmission is disposed in the neutral position and a desired engine torque can be rapidly realized as soon as the transmission actuator is disposed in the second gear position. Thereafter, the clutch is closed again.

Methods and apparatus for operating a motor vehicle

A motor vehicle transmission is shiftable in a track pattern with a selector track and shift tracks. A shifter element moves along the tracks when the transmission is shifted from one gear ratio to another. The shifts are directed by a control device sending command signals to an actuator device which, in turn, applies an actuating force to the transmission. A main position-detecting device detects the position of the shifter element relative to the selector track and shift tracks, and a redundant position-detecting device performs an additional, redundant determination of the shifter-element position.

Transmission, shiftable in a track pattern

A clutch-actuator device is equipped with a position-detecting device for detecting at least one of the different possible positions of engagement, disengagement and partial engagement of a clutch that serves to control the amounts of torque being transmitted between two rotary components of a torque-transmitting mechanism. The position-detecting device performs its detecting function independently of any measurement of the clutch position which may be performed by a displacement-measuring device.

Actuator device for a clutch device

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Warwick, United Kingdom

Michael Gallion