The new BMW Efficient Dynamics Engine Family

Steinparzer, Fritz; Ardey, Nikolai; Mattes, Wolfgang; Hiemesch, Detlef

doi:10.1007/s38313-014-0146-4

Cited by 2 publications

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“…Although some newer engines in Brazil adopt the 1.0 L 3-cylinder (0.33 L/cylinder) configuration, a greater displacement per cylinder (around 0.5 L/cylinder) is a tendency recently adopted by major automotive manufacturers. As discussed by [40], BMW adopts this course since 2014 as a means to improve the engine fuel conversion efficiency, which is such a relevant matter for future ICE concepts. The acquisition and monitoring system of the SCRE bench test consisted of three different software, which comprised the PUMA OPEN, INDICOM and ECU.…”

Section: Methodsmentioning

confidence: 99%

An evaluation of combustion aspects with different compression ratios, fuel types and injection systems in a single-cylinder research engine

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et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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The growing commercialization of flex-fuel vehicles in Brazil demands the optimization of internal combustion engines for the operation with ethanol (E100) and gasohol (E22), in an attempt to reduce the fuel consumption and minimize the pollutant emissions into the atmosphere. In this sense, this work proposes the study of different volumetric compression ratios in a single-cylinder research engine in order to conclude about its fuel conversion efficiency and, in particular, a more detailed combustion investigation for two of the most common Brazilian fuels. Dynamometric bench tests were performed for distinct compression ratios, injection systems and fuel types, which demanded a specific piston design to meet the requirements for each combustion chamber configuration. The use of ethanol was the most suitable when compared to gasohol, especially at high load conditions, in which was observed a knock tendency for E22 but not for E100, due to its improved physicochemical properties, resulting in enhanced combustion aspects. The proposed methodology proved effective in allowing fuel conversion efficiency gains for the tested fuels, injection systems and piston designs when compared to the engine baseline operation, with up to 6.1% improvement when using the most appropriate compression ratio. Finally, the ethanol direct injection confirmed the potential of this Brazilian biofuel as one of the most promising renewable options for internal combustion engines in current and future sustainable energy directives. Keywords Compression ratio • Internal combustion engine • Fuel conversion efficiency • Ethanol • Flex-fuel Abbreviations ABDC After bottom dead center APMAX Angle of maximum pressure (°) ATDC After top dead center BBDC Before bottom dead center BMEP Brake mean effective pressure (bar) BTDC Before top dead center CA Crank angle CO 2 Carbon dioxide COV Covariance (%) CR Compression ratio DI Direct injection E100

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Section: Methodsmentioning

confidence: 99%

An evaluation of combustion aspects with different compression ratios, fuel types and injection systems in a single-cylinder research engine

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Netto

Costa

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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“…In the meantime, BMW diesel engines have achieved a very high degree of innovation. The recent market launch of a completely redesigned family of gasoline and diesel engines created the basis for meeting the demanding challenges of the future [2,3,5].…”

Section: Challenges For 2020+ Current Development Statusmentioning

confidence: 99%

“…BMW approaches this complex environment with a dual 'both this and that' strategy. In addition to the enhancement of more efficient combustion power trains [2,3], BMW is also very rigorously devoting attention to the development of alternative drives on the basis of electric drives. With the two vehicles i3 and i8, the first two representatives of this revolutionary development direction were launched onto the market in 2014.…”

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The future of the diesel engine as a means of propulsion in passenger cars

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The future of the diesel engine as a means of propulsion in passenger cars 1 Abstract BMW meets future mobility requirements with a dual development. In addition to the introduction of alternative drive concepts, intensive work is under way on the enhancement of more efficient combustion drives. As a CO 2 avoidance concept, diesel engines play an important role here. In Europe, this drive principle has captured very high market shares in the last 20 years -at BMW, more than 75%. Diesel vehicles are also well accepted in regions outside of Europe. The opportunity as a CO 2 avoidance concept, however, faces stiff challenges in the form of future exhaust emissions legislation (RDE, US SULEV). This discussion points out the relevant challenges and technological solution approaches. In addition to approaches involving internal engine measures, possible exhaust re-treatment systems, a balanced engine portfolio (right-sizing), as well as efficient electrification approaches for diesel engines will also be discussed. Different packages to effectively address the challenges of the future can be compiled from the above-mentioned technology fields. With the required development boost, future passenger car diesel engines will become 'Blue Performance' drives over the long term. Introduction Rising mobility requirementApproximately 7.2 billion people currently live on our planet. In the previous year alone, the number of inhabitants of the Earth has risen by 80 million. After elementary basic needs, the need for mobility is very high in the scale of values of human beings. Despite different regional requirements for mobility solutions, individual mobility will continue to be assigned great importance in future (Fig. 1) [1]. Together with the global challenges with regard to reducing the consumption of resources and protecting the environment, this results in a very complex pattern of requirements for the future of mobility (Fig. 2). 566The future of the diesel engine as a means of propulsion in passenger cars 567The future of the diesel engine as a means of propulsion in passenger cars For vendors of mobility solutions, this means having to deal with exceedingly varied and volatile framework conditions. BMW approaches this complex environment with a dual 'both this and that' strategy. In addition to the enhancement of more efficient combustion power trains [2,3], BMW is also very rigorously devoting attention to the development of alternative drives on the basis of electric drives. With the two vehicles i3 and i8, the first two representatives of this revolutionary development direction were launched onto the market in 2014. Legal framework conditionsLegislative developments aim at reducing local pollutant emissions and global CO 2 emissions as well as conserving fossil resources. In the meantime, more than 90% of all regions of the world are regulated by corresponding legal stipulations. Influenced by historical developments and regional interests, there are also a large number of different regulations worldwide (Fig. 3). F...

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The new BMW Efficient Dynamics Engine Family

Cited by 2 publications

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An evaluation of combustion aspects with different compression ratios, fuel types and injection systems in a single-cylinder research engine

An evaluation of combustion aspects with different compression ratios, fuel types and injection systems in a single-cylinder research engine

The future of the diesel engine as a means of propulsion in passenger cars

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