To 2010 and beyond

Engineers working on emissions-control systems for heavy-duty engines already are preparing for ever more stringent regulations later next decade.

Engineers who recall the challenges facing light-duty gasoline engine emissions control in the mid-1970s can relate to where heavy-duty diesel emissions control stands as it faces the 2010 decade, said Dr. Mike Traver.

“We've had a lot of technology forced on diesels in a very short period of time, and currently there is uncertainty regarding which solutions will end up in production,” said Traver, Diesel Team Manager at powertrain engineering specialists IAV. “We have to get over the hump on NOx. Systems cost will rise. But we'll see optimization of the aftertreatment, improved controls, better combustion technology.”