Mobility Solutions

Bosch compact Gasoline injection worldwide

  • Gasoline direct injection is booming in China, the U.S., and Europe
  • Dr. Rolf Bulander: “Gasoline direct injection is just as revolutionary as direct injection for diesel engines.”
  • Bosch using advanced PFI to boost efficiency of port fuel injection
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  • April 07, 2014
  • Mobility Solutions
  • Press releases
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press release

Europe: cradle of technology and lead market
Gasoline direct injection is already found under the hood of many cars in countries such as Germany, the U.K., and France, ranging from small vehicles with downsized engines to highly efficient sedans with an average fuel consumption of less than 6 liters per 100 kilometers. The technology has become a standard feature of many vehicles over the past five years, particularly in the premium segment. Even sports cars are increasingly moving away from their traditional reliance on port fuel injection to reap the benefits of powerful and economical direct injection systems. “Europe is clearly the lead market for efficiency-enhancing technology: gasoline direct injection is now heralding the same kind of revolution that we previously saw in diesel engines,” says Dr. Rolf Bulander, the member of the board of management of Robert Bosch GmbH responsible for drive technology. Drivers benefit from higher torque, which creates greater driving enjoyment while simultaneously reducing consumption. This technology is where the future lies – especially in light of the EU’s increasingly strict CO2 legislation. By 2016, some 50 percent of new vehicles with gasoline engines will be equipped with direct injection.

U.S.: direct injection is the future of the American way of driving
Port fuel injection in a classic big block engine is still the dominant technology in the United States. As a result, big SUVs and vans consume significantly more fuel than comparable models in other regions of the world. However, new legislation means that the average fuel consumption of all American vehicles will need to be cut drastically by 2025. In 2012, for instance, a large sedan was required to have a fuel economy rating of at least 28 miles per gallon; by 2025, a new vehicle in the same category will need to increase its mileage per gallon to roughly 50 miles. This equates to a fuel consumption of some 4.3 liters per 100 kilometers. Pressure from legislators means that more efficient combustion processes such as direct injection will take on an increasingly important role. Bosch estimates that it could achieve a market share of up to 50 percent for new vehicles. “We’re assuming that eight cylinder engines will only be feasible with gasoline direct injection in the future,” Bulander says.

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Powertrain options in the U.S.

China: western vehicles help establish gasoline direct injection
The People's Republic of China will be another major market for gasoline direct injection in the future. In a few years’ time, this is where Bosch will be selling the majority of its injection systems. “In 2020, one in three newly-registered vehicles in China will be equipped with gasoline direct injection,” Bulander predicts. This growth will primarily be driven by western European automakers offering their highly efficient vehicles worldwide. But Chinese manufacturers will also be taking advantage of advanced injection technology, since the Chinese government is tightening basic requirements for all new models. New legislation stipulates that the average fuel consumption of new vehicles has to be reduced to 5 liters per 100 kilometers by 2020. Efficiency improvements on this scale are virtually unattainable without making the switch from port fuel injection to gasoline direct injection.

Japan: hybrid boom bolsters port fuel injection
Hybrid vehicles are already a widespread phenomenon in the Japanese market, with around one-quarter of new-car buyers currently choosing an electrified model. This figure is continuing to increase, even though Japanese legislators have set an emissions target of just 115g of CO2 per kilometer, which is relatively modest by international standards. A further reason for the continued dominance of port fuel injection is that, on average, the Japanese drive an average of just 5,000 kilometers a year. In addition, an extremely low-priced category of small vehicles known as K-Cars, sub-compact cars which have engine capacities no greater than 660 cm³, command a market share of up to 40 percent. Now, however, Bosch is offering a new injection system specifically designed for such small, low-cost gasoline engines. “Our systematically improved advanced PFI system makes cost-efficient port fuel injection even more efficient,” Bulander says. By using tailor-made components, it is possible to achieve fuel savings of up to 12 percent.

South America: first direct injection of ethanol
Flex fuel engines that can run on pure ethanol or a mixture of ethanol and gasoline are widespread in Brazil, where port fuel injection continues to be the dominant technology. Bosch has successfully developed ways of enabling its systems to be used in combination with direct injection as well. Even when alcohol is being injected instead of gasoline, the key benefit remains the same, with optimum mixture preparation once again enabling a reduction in fuel consumption of around 15 percent.

Online-Dossier gasoline direct injection
Online-Dossier Deutscher Zukunftspreis 2013

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Mobility Solutions is the largest Bosch Group business sector. In 2015, its sales came to 41.7 billion euros, or 59 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 vehicle-to-vehicle and vehicle-to-infrastructure communication, repair-shop concepts, and technology and services for the automotive aftermarket. Bosch is synonymous with 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 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. 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 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations 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.”

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PI8514 - April 07, 2014

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