Luk Lamellen Und Kupplungsbau Beteiligungs Kg

Schaeffler Technologies Ag & Co .kg

Alexander Renfer

Oswald Friedmann

Reinhard Berger

Martin Zimmermann

Peter Greb

Markus Baehr

Matthias Ehrlich

Mario Jung

Juergen Eich

Thomas J&auml;ger

Lászlo Mán

Joachim Hirt

Georg Schneider

Jürgen Eich

Matthias Panzer

Thomas Weber

J&uuml;rgen Gerhart

Gregory Hickling

Uwe Wagner

In a method for referencing the position of an actuating element of a functional unit, in particular of a clutch in the drivetrain of a vehicle, the attainment of a reference position of the actuating element is assessed for plausibility in that it is checked whether a variable which can be applied to the actuating element varies in a predetermined way in a predetermined spacing of the position of the actuating element from the reference position.

Method and device for referencing the position of an actuating element

The engageable and disengageable friction clutch between the prime mover and the gearbox in the power train of a motor vehicle can be adjusted by an electric motor against the opposition of at least one resilient element by applying rest current from a source to an electric motor which opposes the bias of the resilient element in response to detection, by a sensor, that the bias of such resilient element upon a displaceable clutch actuating member exceeds the force then being exerted by the clutch. The application of rest current to the motor normally takes place when the vehicle is started and/or subsequent to shifting of the gearbox into a different gear. The thus actuated motor can prevent a worm wheel gearing or an analogous motor-operated component from partially disengaging the clutch when the disengagement is undesirable or harmful.

Method of and apparatus for the application of electric current to components of clutch actuating assemblies

A method of regulating the position of a clutch actuator in a vehicle employs the concept of adapting the servo-loop parameters of a position controller of the clutch to different operating conditions of the vehicle, as well as the concept of applying and continuously adapting a bias current of the actuator motor in order to avoid or minimize the incidence of a hunting or after-regulation behavior of the control loop and to thereby minimize the energy consumption of the actuator motor.

Method of regulating the position of a clutch actuator

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Bühl, Germany

Alexander Renfer