Method for correcting measured values of a sensor element

A method for correcting a measured value of a sensor element obtained over repeatedly executed measuring periods for performing different measurements and for setting different operating states, the sensor element is electrically connected by a circuit arrangement in a periodically alternating electrical manner, in consecutive switching positions, in a predefined order, the method comprising:

• performing a measurement repeatedly within a measuring period, at predefined switching positions, individual values thereby being determined at the predefined switching positions;
• correcting, by processing circuitry, the individual values as a function of the respective switching positions associated with respective ones of the individual values;
• and
• determining, by the processing circuitry, the measured value from the corrected individual values.

A method for determining a combustion air ratio lambda in exhaust gas of an internal combustion engine, the method comprising:

• obtaining a measured value of a pump current of a wide-range lambda probe;
• and
• determining the combustion air ratio lambda based on the measured value;
• wherein:
• the wide-range lambda probe is electrically connected by a circuit arrangement in a periodically alternating electrical manner, in consecutive switching positions, in a predefined order;
• and
• the obtaining of the measured value includes, during repeatedly executed measuring periods for performing different measurements and for setting different operating state, performing the following:
• performing a pump current measurement repeatedly within a measuring period, at predefined switching positions, individual values thereby being determined at the predefined switching positions;
• correcting, by processing circuitry, the individual values as a function of the respective switching positions associated with respective ones of the individual values;
• and
• determining, by the processing circuitry, the measured value from the corrected individual values.