Conti Temic Microelectronic Gmbh

Continental Automotive Gmbh

Carsten Sensche

Michael Beuschel

Wolfgang Schulter

Martin Ebel

Stefan Rau

Stefan Buschmann

Gerhard Demmelmeier

Stefan Beck

Karl Krammel

Helmut Weber

Thomas Gründer

Dieter Schwab

A pneumatic device for the variation of a contour of a seat bearing surface of a vehicle seat is disclosed. The pneumatic device includes a first foil portion, a second foil portion which is connected to the first foil portion along at least one connecting seam such that a bladder for the variation of the contour of the seat bearing surface, having a bladder chamber which can be filled with pressure medium and having an inflow opening for the inflow of the pressure medium, is formed, and a throttle element, which is arranged in the interior of the bladder chamber and which is designed to throttle a pressure medium flow flowing in through the inflow opening.

Pneumatic device

A piezo valve is actuated by way of at least one actuator which is formed by a piezoelectric bender transducer () having two piezo actuators (). An actuating method has the steps of generating an actuator control signal (out), which can be output at either one of the two piezo actuators (), depending on at least one actuating control signal (in), of detecting an electric measurement quantity at one of the piezo actuators () which is currently not controlled (), and of generating a vibration damping signal (fb) on the basis of the detected measurement quantity and use thereof for active vibration damping for the currently controlled piezo actuator ().

Circuit arrangement and method for actuating a piezo valve

A device and a method for determining the current position of a rotor, particularly the angle of rotation of the rotor, of an electric motor, wherein said device determines the current position of the rotor using the fluctuations of the armature current or the armature voltage of the electric motor. The fluctuations of the armature current or the armature voltage are separated from the fluctuations of the motor current or the motor voltage with the help of an amplifier unit dependent on a controllable offset value. The offset value is changed according to the motor current or the motor voltage. By virtue of the device and the method, the fluctuations of the armature current or the armature voltage can be separated from the fluctuations of the motor current or the motor voltage over the full measurement range of the motor current or the motor voltage.

Apparatus for sensorless positioning with signal amplifier

Growing community of inventors

Donauwörth, Germany

Carsten Sensche