New Bosch technology cuts nitrogen oxide emissions in diesel cars to improve air quality

• New Bosch hybrid technology helps reduce diesel NOx emissions by up to 80%
• Boost recuperation system increases torque and cuts CO2 emissions by up to 15%
• Particulate emissions problem solved with particulate filter - soon more particulates from cigarette smoke than tailpipe emissions

In an effort to help improve air quality, Bosch has developed a new system for vehicles, which will significantly reduce emissions from diesel engines.

The new hybrid technology, called boost recuperation system, uses electrification to reduce emissions of nitrogen oxide (NOx) by up to 80%, while also cutting CO2 output by up to 15%. The new system not only reduces emissions, it also enables engines to generate more power. With the new Bosch system saving emissions can be fun.

Steffen Hoffmann, president of Bosch UK, says: “The new boost recuperation system will enable drivers to enjoy extra torque of 150Nm while also protecting the environment. Now, revving up the engine means you can enjoy your car while also protecting the environment.”

“The Bosch boost recuperation system is a hybrid everyone can afford,” says Dr. Rolf Bulander, member of the board of management of Robert Bosch GmbH. Bosch predicts a bright future for this technology; by 2020, around 4 million new vehicles with the tech could be sold in Europe, North America and China. The system is set to close the persistent and sizeable gap between start-stop systems and hybrid drives.

How it works:

NOx is produced when an engine burns fuel – called combustion. The 48-volt boost recuperation system reduces nitrogen oxide emissions at the point of combustion. An electric motor supports the combustion engine at high loads – when accelerating and driving at high speed. These are the points where most emissions are created. By using carefully timed electric ‘boosts’, NOx emissions are diminished.

A history of emissions reduction:

Bosch has been instrumental in helping car makers reduce NOx emissions from diesel engines, with significantly less NOx emitted from a new car today than in previous generations. The 48-volt boost recuperation system is the latest major development in NOx reduction, meaning the next generation of diesel vehicles could emit just one fifth of the NOx they do today.

To find out more go to www.bosch.co.uk/diesel

Ends

Contact: Sabrina Mayeen, phone: +44 (0)1895 838813

Notes to editors

This latest development follows a long line of pioneering Bosch powertrain technologies, which have helped the automotive industry to reduce NOx emissions by 80% since 2000. These include the Denoxtronic selective catalytic reduction (SCR) system and pioneering common rail technology.

Denoxtronic

The Bosch Denoxtronic exhaust-gas treatment system cuts nitrogen-oxide emissions by up to 95%. Denoxtronic not only cuts emissions, it makes diesel engines more economical as well. Thanks to SCR exhaust-gas treatment fuel consumption, and thus CO2 emissions, can be lowered by as much as 5% In addition, it has NOx and particulate sensors that support the diagnosis of exhaust-gas treatment systems, which will become increasingly complex in the future.

Common Rail

Bosch diesel direct-injection systems have contributed significantly to the reduction of NOx and CO2 from diesel engines. High injection pressures and accurately-measured quantities of injected fuel deliver highly efficient combustion with low levels of harmful emissions and consumption.

In contrast to other injection systems, the common-rail system separates the pressure-generation and injection processes. Each cylinder is supplied with fuel under high pressure from a common feed line (hence "common-rail"). This means the moment of injection can be controlled very accurately, and the quantity of fuel measured very precisely. The Bosch common-rail system has been fitted to more than 85 million diesel vehicles since 1997.

About Bosch

Mobility Solutions is the largest Bosch Group business sector. In 2014, its sales came to 33.3 billion euros, or 68 percent of total group sales. This makes the Bosch Group one of the leading automotive suppliers. The Mobility Solutions business sector combines the group’s expertise in three mobility domains – automation, electrification, and connectivity – and offers its customers integrated mobility solutions. Its main areas of activity are injection technology and powertrain peripherals for internal-combustion engines, diverse solutions for powertrain electrification, vehicle safety systems, driver-assistance and automated functions, technology for user-friendly infotainment as well as car-to-car and Car2X communication, repair-shop concepts, and technology and services for the automotive aftermarket. Bosch has been responsible for important automotive innovations, such as electronic engine management, the ESP anti-skid system, and common-rail diesel technology.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 360,000 associates worldwide (as per April 1, 2015). The company generated sales of 49 billion euros in 2014.* Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiary and regional companies in some 60 countries. Including its sales and service partners, Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2014, Bosch applied for some 4,600 patents worldwide. The Bosch Group’s strategic objective is to create solutions for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Additional information is available online at www.bosch.com, www.bosch-press.com, http://twitter.com/BoschPresse

*The sales figure disclosed for 2014 does not include the former joint ventures BSH Bosch und Siemens Hausgeräte GmbH (now BSH Hausgeräte GmbH) and ZF Lenksysteme GmbH (now Robert Bosch Automotive Steering GmbH), which have since been taken over completely.