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News | The diesel of the future

New Bosch diesel technology minimizes nitrogen oxide emissions

Reducing nitrogen oxide emissions protects the climate, and a new Bosch diesel technology helps achieve this. At the annual Bosch press conference on April 25, Dr. Volkmar Denner, chairman of the board of management, presented a breakthrough in diesel research. The Bosch innovations have made it possible to significantly reduce the nitrogen oxide emissions of vehicles, to the point that real driving emissions (RDE) are well below current limits as well as target limits for 2020. To achieve this, Bosch engineers fine-tuned existing technologies. Additional components that would result in higher costs are not required. “We have pushed the boundaries of what is technically possible,” said Volkmar Denner.

A record in lowering emissions

Since 2017, European legislation has required that new vehicle models emit a maximum of 168 milligrams of nitrogen oxide per kilometer travelled. This limit takes into account an RDE-compliant mix of urban, long-haul, and highway driving. From 2020, emissions limits will decrease to a maximum of 120 milligrams. Bosch technology already achieves a record value of 13 milligrams per kilometer – about a tenth of the future limit. Even with challenging urban drives, Bosch test vehicles have achieved an average of 40 milligrams per kilometer. This has been made possible by a combination of sophisticated fuel injection technology, a newly developed air system, and intelligent temperature management.

Smart and transparent

In addition to these latest innovations, Bosch continues to improve the diesel engine, now also with the help of artificial intelligence. The aim is to develop an internal combustion engine that runs practically without producing nitrogen oxide and particulate emissions. “We still believe that diesel will play an important role in the mobility mix of the future. Until we see a breakthrough with e-mobility, we need a highly efficient internal combustion engine,” said Denner. Another important step will be achieving a transparent carbon footprint for road traffic that also takes emissions from fuel production and power generation into account.

More information on innovative Bosch diesel technologies can be found here

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