Method for checking plausibility of output signal of exhaust sensor arranged in exhaust passage of internal combustion engine, involves determining operating parameters of internal combustion engine by control unit

摘要

The method involves determining operating parameters of the internal combustion engine by a control unit, and determining the predictive value (13) for the amount of exhaust gas component detected by the exhaust sensor from the operating parameters of the internal combustion engine, exhaust gas parameters (12) and output signals (14) from sensors. The output signal of the exhaust sensor is compared with the predictive signal determined from the predictive value. An independent claim is also included for a device for checking plausibility of an output signal of an exhaust sensor arranged in an exhaust passage of an internal combustion engine.