Continental Automotive Gmbh

Umicore Ag & Co Kg

Vitesco Technologies Gmbh

Gunter Hagen

Martin Roesch

Willibald Reitmeier

Martin Votsmeier

Denny Schädlich

Ralf Moos

Markus Dietrich

Markus Hien

Katharina Burger

Daniela Schoenauer-Kamin

Joroslaw Kita

Sven Wiegaertner

Gerhard Fischerauer

Sebastian Reiss

Jaroslaw Kita

Sven WIEGÄRTNER

Daniela SCHÖNAUER-Kamin

A sensor for detecting oxidizable gases may comprise a catalytically inactive surface and a catalytically active surface on opposite sides of a sensor element and a thermal element running through the sensor element to connect the two surfaces, with a device for measuring a thermoelectric voltage between the catalytically active surface and the inactive surface as a measure of the difference in temperature and therefore the gas concentration. The sensor may include a hot plate mounted on a base carrier by means of narrow arms, wherein the thermal element includes at least one via extending through the hot plate and connecting the two surfaces to one another, and in the region of which the thermoelectric voltage is measured.

Sensor for detecting oxidizable gases

The present invention relates to a process for determining the state of an exhaust-gas purification device. The exhaust-gas purification device is one which can store gas and/or particles. By means of the proposed process, it is for example possible for the loading state of the exhaust-gas aftertreatment system, for example the oxygen storage state of a catalytic converter which is provided with an oxygen-storing material, such as for example a three-way catalytic converter, to be analyzed. The present process operates contactlessly through the analysis of resonances which arise upon the excitation of the catalytic converter using the purification device as microwave cavity resonator.

Method for condition determination of an exhaust-gas purification system

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Schwarzenbach a. Wald, Germany

Gunter Hagen