The Assessment of The Emission Level From Heavy- Duty Truck Under Actual Operating Conditions

The paper presents an analysis of the gaseous exhaust emissions along with an analysis of the size and mass distribution of particulate matter from a Euro V compliant road tractor. The vehicle was fitted with an engine of the displacement of 15,6 dm, maximum power output 412 kW generating a maximum torque of 2700 Nm (1991 lb/ft). For the tests the authors used portable exhaust emission analyzers (PEMS: SEMTECH DS and AVL Micro Soot Sensor. The measurements were conducted under actual operating conditions in traffic typical of long distance European haulage. The analysis of the obtained results was divided into two parts. The first part was related to the assessment of the influence of the traffic conditions on the exhaust emissions and gas mileage. The second part was related to the assessment of the influence of the engine operating conditions on the said exhaust emissions. The obtained exhaust emission results were compared to the emission limits specified in the Euro 5 standard. Keywords— PEMS, heavy-duty truck, exhaust emissions