Verbrennungsmotor und fehlererkennungssystem dafür

Abstract

The present subject matter provides a combustion engine (140) with a failure detection system (300) that is cost effective and has minimal components yet offering robust output. The system includes a first treatment device (206) and it is disposed in proximity to an exhaust port of the combustion engine (140). A first sensor member (250) is disposed upstream of the first treatment device (206) and a second sensor member (255) is disposed downstream of the first treatment device (206) in a low-turbulence zone (Z) being within a distance of 10 times of the maximum cross-sectional dimension (D 1) of the first treatment device (206). A detection control unit (305) compares the data of the first sensor member (250) and the second sensor member (255) to detect a failure of conversion capability of the exhaust system (200).