Valeo Systemes Thermiques

Preh Gmbh

Alain Dani

Tobias Bodenstein

Jochen Schlereth

Matthias Lust

Xiaoxi Li

Florent Davier

A control element comprising a support; a control part which defines at least one operating surface, which is movable or elastically yielding if an operating force F acts upon the operating surface; a layer structure that is disposed between the control part and the support and that is elastically deformed if an operating force F acts on the operating surface. The layer structure has at least one first electrode associated with the support and a second electrode, which is associated with the control part and disposed underneath the operating surface, for the definition of a measuring capacity varying in accordance with the operating force. The layer structure further has an intermediate layer having a recess which is disposed between the first and second electrodes for defining a hollow chamber; and means for venting the hollow chamber. The means for venting is integrated at least partially into the intermediate layer.

Capacitive control element with improved malfunction immunity

The invention relates to a method for controlling the angular position [STP_POS] of a stopless rotatably movable member [] of a stepper motor, the said movable member [] being designed to interact with at least one fixed member [] whose state is capable of being modified during the rotation of the movable member [] according to parameters [CAM_POS] previously defined according to the angular position [STP_POS] of the movable member []. The method comprises a step of testing the correspondence [] of the state of the fixed member [] with the parameters [CAM_POS] of the predefined modifications, in a mode in which the position of the motor [STP_POS] is considered to be defined.

Method for controlling the angular position of a stepper motor

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Coburg, Germany

Alain Dani