Continental Automotive Gmbh

Johannes Scheuerer

Norbert Sieber

Stefan Barnikow

Jia Huang

In a method for heating a gas sensor (), in particular an exhaust gas sensor for an exhaust system () of a motor vehicle (), a temperature of the gas sensor () is determined and the heating process is influenced as a function of the temperature.

Method for heating a gas sensor

A fault analysis method for a lambda probe of an internal combustion engine, in particular for detecting a heater input, has the following steps: measurement of an air ratio in the exhaust gas of the internal combustion engine by a lambda probe, control of the air ratio in the exhaust gas of the internal combustion engine by a lambda probe by a lambda controller intervention in accordance with the measured air ratio, and evaluation of the lambda controller intervention in order to detect a fault.

Fault analysis method for a lambda probe

In the calibration of a lambda sensor (), inaccuracies occur during a fuel cut-off overrun phase depending on the temperature. A method is proposed for correcting an output signal of a lambda sensor () of an internal combustion engine (), having the following steps: detection of a fuel cut-off overrun phase of the internal combustion engine (), sensing of an exhaust-gas composition by the lambda sensor () during the fuel cut-off overrun phase, sensing of a temperature which represents a measure of the intake air of the internal combustion engine (), calibration of the lambda sensor () based on the second temperature.

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Taufkirchen/Vils, Germany

Johannes Scheuerer