Exhaust emission test performance with the use of the signal from air flow meter

The paper presents selected technical solutions in the area of exhaust emissions research conducted in real operational conditions of a vehicle. The author describes his own road emissions research methodology with the use of information about the air flow supplying an engine (OBD II) and the measured volumetric shares of particular fumes components (exhaust gas analyser). Test results confirm the possibility of applying this measurement method, and their analysis shows the inadequacy of the type-approval tests compared to the real operation of the vehicle.

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