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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

News | Ranked in the top 3 for resource efficiency

Bosch Diesel Systems nominated for German Sustainability Prize

On November 27, the German Sustainability Prize’s award ceremony was held at the Maritim Hotel in Düsseldorf. Bosch Diesel Systems was among the finalists in the special “Resource Efficiency” category. Since 2008, the prize has been awarded to companies, municipalities, and research institutes for their special achievements in the area of sustainability. With over 800 applicants and 2,000 guests at the final event, the German Sustainability Prize is one of the biggest competitions of its kind in Europe.

Uwe Gackstatter (Bosch Diesel Systems) congratulates Margret Suckale (BASF) on winning the award for resource efficiency

Bosch Diesel Systems was nominated as a result of its lasting commitment to making diesel systems more eco-friendly and energy efficient. This includes responsible use of resources in production. For instance, with its eXchange program, Bosch refurbished around 60,000 used components in 2014. In so doing, the company was able to reduce energy consumption by around 90 percent compared with production of new components, and used 50 to 90 percent less material. Moreover, Bosch uses fuel injection and exhaust gas treatment systems as well as sensor technology to continuously increase the fuel efficiency of diesel engines, all the while reducing emissions. As a result, the fuel consumption of diesels has decreased by 30 percent over the past 20 years, while CO2 emissions have dropped 25 percent. At the same time, particle and nitric oxide emissions have decreased by 97 and 84 percent, respectively.


In order to achieve the EU’s 2020 CO2 fleet targets of 95 g/km, companies like Bosch are working to push powertrain electrification forward. At the same time, the company places great importance on making further improvements to the diesel engine. “Well into the next decade, both the internal combustion engine and electric drives will be developed in parallel,” says Dr. Volkmar Denner, chairman of the Bosch board of management. This is because especially fuel-efficient diesels make the European Union’s climate protection targets realistic. By 2020, the efficiency of diesels is expected to increase by another 15 percent. “A greater share of diesel means less CO2. We mustn’t lose sight of this in the current debate on urban air quality.” What is more, modern particle filters are so efficient that they even remove particles from the ambient air. Nitric oxide emissions can also be further reduced: “Bosch has the technology required to reduce the nitric oxide emissions of diesel vehicles to a minimum in real traffic conditions.”

News | Toward a clean future

Euro 6 is set to go into effect in September 2015, and will mean stricter emission standards for internal combustion engines.
 
 
Experts agree that the future of driving is electric. However, until the technology is suitable for mass use, four of five vehicles around the world will have either diesel or gasoline engines. In particular, diesel vehicles have a bad reputation, as it is widely believed they contribute to poor air quality in urban conurbations. But this is a misconception: a lot has changed since the Euro 1 emission standard was introduced in 1991. For instance, the particle emissions of vehicles have been reduced by 97 percent. When Euro 6 goes into effect on September 1, 2015, emissions standards will be even stricter: the maximum nitrogen oxide emissions for diesel vehicles will be 80 milligrams per kilometer. For gasoline engines, the figure will be 60 milligrams per kilometer.
 
 
In addition to its research and development activities in the area of e-mobility, Bosch has continuously improved diesel technology for several decades. For example, particle filters now have an efficiency factor of more than 95 percent. Moreover, recent field tests in Paris La Garenne showed that filtered emissions had lower levels of particulate matter than the ambient air. Thanks to modern technology that was developed in anticipation of Euro 6, the nitrogen oxide emissions of diesel engines have also been efficiently reduced in recent years. With technologies such as the Bosch Denoxtronic system, an odorless urea solution (AdBlue) is injected. It reacts with nitrogen oxide and transforms it into harmless water vapor and nitrogen. As a result, the nitrogen oxide in emissions can be reduced by up to 95 percent. 
 
 
The CO2 emissions of diesel vehicles can be reduced even further: thanks to more aerodynamics and reduced friction, additional savings of ten percent are possible. Powertrain electrification will also give diesel motors a boost. Especially for heavy-duty and large vehicles such as SUVs, electric drives can also be beneficial in fuel-intensive driving situations such as starting and accelerating. Here, Bosch offers a broad range of solutions, such as a 48-volt hybrid that can reduce CO2 emissions by up to 15 percent in real driving conditions. “Diesel is more important than ever,“ says Dr. Rolf Bulander, Chairman of the Mobility Solutions business sector of Robert Bosch GmbH. “It is a key technology in reaching CO2 fleet targets – especially in Europe, diesel vehicles are very widespread.”
 
More information on diesel technology can be found here.