Robert Boschgmbh

Bjoern Alexander Schuetz

Lothar Diehl

Uwe Hammer

Jens Wagner

Torsten Handler

Horst Mueller

Thomas Seiler

Goetz Reinhardt

Steffen Meyer-Salfeld

Rainer Peck

Helge Schichlein

Stefan Motz

Christian Kriechbaum

Michael Schenk

Oliver Hasslacher

Micha Muenzenmay

Harry-Alexander Kempf

Ruediger Schaller

Haris Delic

A method for diagnosing a sensor element for detecting at least one fraction of a gas component of a gas in a measuring gas chamber, in particular a sensor element for detecting oxygen in an exhaust gas of an internal combustion engine. The sensor element includes at least one first electrode, to which the gas may be applied, and at least one second electrode, the first electrode and the second electrode being connected via at least one solid electrolyte. A diagnostic signal is applied between the first electrode and the second electrode, a response signal being detected between the first electrode and the second electrode.

Method and device for diagnosing electrodes in sensor elements

Described is a method for operating an internal combustion engine (), in which method at least one parameter of the exhaust gas flowing in an exhaust-gas duct () is detected by at least one exhaust-gas probe (), wherein the internal combustion engine () is at least temporarily turned over by a starting device (), during which an injection and combustion of fuel does not take place, and during and/or after which the exhaust-gas probe () is adjusted.

Method for operating an internal combustion engine

A device for controlling at least one gas-changing valve ( ) of an internal combustion engine includes a valve adjuster ( ) with an adjusting piston ( ) limiting two pressure chamber ( ). The lower pressure chamber ( ) is permanently acted upon by fluid pressure and the upper pressure chamber ( ) can be interchangeably pressurized or depressurized with the fluid pressure. The braking of the adjusting piston ( ) before reaching its upper end position affecting the closing position of the gas-changing valve, the return ( ) of the upper pressure chamber ( ) is divided into at least two axially spaced run-off openings ( ), of which the lower run-off opening ( ) can be closed by the adjusting piston ( ) and the upper run-off opening ( ) is connected with the lower run-off opening ( ) via a throttle opening ( ) controllable in an opening cross section. For a temperature-independent braking action of the throttle opening ( ), a temperature-controlled, pressure-regulating valve ( ) is provided for adjusting the control pressure on the throttle opening ( ).

Device for controlling at least one gas-changing of an internal combustion engine

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Besigheim, Germany

Bjoern Alexander Schuetz