Bosch solution offers route to rehabilitation for diesel engines

The advance – which combines a new air management system, and intelligent temperature management - was announced by Bosch CEO Dr Volkmar Denner, who was speaking at the company’s annual press conference.

The system, which is based on components already in use in production vehicles, has been undergoing real driving emissions (RDE) tests to verify the technology in a range of driving conditions. In 2018, the system has averaged nitrogen-oxide readings of 40mg/km.

“Following our breakthrough, we are convinced that in the future, no one will be able to impose a blanket ban on diesel in cities,” said Denner. “The Euro 6 standard allowed 80mg of nitrogen-oxide emissions per kilometre in the test bay, and is currently 168mg on the road, set to decrease to 120mg as of 2020. Using our new exhaust technology, automakers will be able to come in well below these limits.”

Temperature and driving style are two factors that have limited the performance of diesel cars in relation to NOx emissions.