Vehicle with tachograph for recording a measurement reading correlated to the supply of urea to an exhaust gas stream

摘要

The vehicle has a urea feeding device for supplying urea to exhaust gas from an internal combustion engine, before the entry of gas into a catalytic converter. A sensor conveys measurement readings correlated to vehicle speed to a tachograph (3) for recording speed characteristics. Another tachograph (8) provides measurement readings related to the urea supply to the tachograph (3) for correlating urea supply and speed characteristics.