Volkswagen Ag

Vacuumschmelze Gmbh & Company Kg

Branislav Zlatkov

Matthias Katter

Bernd Soltendieck

Matthias Kiefer

Thorsten Richter

Christoph Boese

Markus Danschacher

Nils Quander

Knut Raffel

Zoran Djinovic

Henrik Oelbke

Klaus Utech

Patrick Nickel

Ralf Lüders

Carlo Kurz

Luis Antonio Sancha Garcia

Sebastian Sauer

Martin Fricke

Sven Titze

Kossi Kondo

Ansgar Klose

Ana Maria Racu

Alexander Vogel

Oliver Tappe

The invention relates to a heatable touch sensor and a steering wheel. It has an optical waveguide which is connected to an electrical heat conductor. The optical waveguide changes its transmission behavior, which is determined, with a change in position or bending. The heat conductor is a resistance heater which emits heat by applying an electrical voltage and by the associated current flow. The touch sensor operates by means of optical interferometry, which enables a very high sensing accuracy.

Heatable touch sensor and steering wheel having such a touch sensor

A method for producing a covered steering wheel for a vehicle. A steering wheel skeleton is overmolded with a matrix material. A covering material is coated on its non-visible side with an activatable material. The coated covering material is applied to the overmolded steering wheel skeleton so that its non-visible side faces the overmolded steering wheel skeleton. Longitudinal edges of the covering material are joined together. The activatable material is activated with creation of an integral connection between the covering material and the matrix material.

Method for producing a covered steering wheel for a vehicle

A method for producing a permanent magnet, comprising the step: (a) providing a powder of a magnetic material, (b) coating the powder particles with a coating of a diamagnetic or paramagnetic coating material, (c) compressing the coated particles to form a pressed part, (d) heat treatment to sinter the coating material at a temperature less than a temperature suitable for sintering the magnetic material, while the coating material transfers to a matrix of a diamagnetic or paramagnetic material, which embeds the particles of the magnetic material, and (e) magnetizing the magnetizable material in an external magnetic field, wherein the steps (c), (d) and (e) are carried out in any order successively or at the same time in any desired combination. The nanostructured permanent magnet that can be produced by mean of said method comprises cores of a permanently magnetic material having a mean particle diameter of no more than 1 &#x3bc;m and a matrix of a diamagnetic or paramagnetic material in which the cores are embedded.

Method for producing a permanent magnet and permanent magnet

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Braunschweig, Germany

Branislav Zlatkov