Device and Method for Error-Protected Detection of Measured Values in a Control Unit

A device for error-protected detection of measured values in a control unit, comprising:

• a pick-up device comprising a first independent sensor and a second independent sensor, the sensors effective for detecting measuring signals;
• a first evaluation device effective for generating a measured value taking into account the correlation of the first and second measuring signals to each other;
• a second evaluation device effective for generating a coarse comparison value of lower accuracy, the comparison value generated without taking into account the correlation;
• a transmission device for error-protected transmission of data to the control unit;
• and
• a checking device effective for establishing that the measure value is free from errors by checking the measured value against the comparison value.

A method for error-protected detection of measured values in a control unit, comprising:

• providing a pickup device having a first sensor generating a first measuring signal and a second sensor generating a second measuring signal;
• providing a first evaluation unit and a second evaluation unit;
• generating a measured value in the first evaluation unit taking into account a correlation of the first and second measuring signals;
• generating a rough comparison value of lower accuracy in the second evaluation unit, the comparison value generated without taking into account the correlation of the first and second measuring signals;
• and
• checking the measured value against the comparison value.