Technical Paper
Development of an official test method for on-board PM measurements from Heavy-Duty diesel engines in the European Union
2007-07-23
2007-01-1946
Portable Emissions Measurement Systems (PEMS) are becoming part of the emissions control regulations, as evidenced by the latest requirements introduced in the United States regulations for on-highway and non-road machinery. The European Union is currently following the same route to check the in-use behaviour of heavy-duty diesel vehicles. The current research programmes tend to demonstrate that both the instrumentation and the test methods are mature for gaseous emissions. For PM emissions, the development of portable PM instruments and their test protocols remain a complex challenge, as simultaneous progress take place in the engine after-treatment technologies and the official homologation procedures (the PMP programme in particular). The present paper discusses the current research strategy proposed in the EU for the development of an on-board PM test protocol. Case studies from the EU-PEMS project are presented.