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Analysis of \(\hbox {CO}_2\) reduction potentials and component load collectives of 48 V-hybrids under real-driving conditions

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Abstract

The development of innovative powertrain technologies is crucial for car manufacturers to comply with decreasing \(\hbox {CO}_2\) emission limits. They face the challenge to develop products which fulfill customer requirements in terms of functionality, comfort and cost but also provide a significant \(\hbox {CO}_2\) efficiency improvement. \({48}\hbox { V}\)-hybrids can achieve these conflicting goals due to their low vehicle-integration effort and system costs while substantially increasing powertrain efficiency. The variance of real-driving scenarios has to be considered in system development to achieve the maximum customer benefit with the chosen system design, such as installed electrical power or topology. This paper presents a comprehensive investigation of different \({48}\hbox { V}\)-system designs under real-driving conditions. The influence of varying real-driving scenarios on component load collectives is analyzed for P1 and P2 topologies. Furthermore, the \(\hbox {CO}_2\) reduction potential and the influence of different hybrid functions such as electric driving is identified. The contribution of this paper is the identification of \({48}\hbox { V}\)-system potentials under real-driving conditions and the corresponding component requirements, in order to support the development of customer-oriented \({48}\hbox { V}\)-systems.

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Acknowledgements

On behalf of all authors, the corresponding author states that there is no conflict of interest.

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Authors and Affiliations

  1. Mercedes-Benz AG, Sindelfingen, Germany

    Daniel Förster & Lukas Decker

  2. Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany

    Martin Doppelbauer & Frank Gauterin

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  1. Daniel Förster
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  2. Lukas Decker
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  3. Martin Doppelbauer
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  4. Frank Gauterin
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Correspondence to Daniel Förster.

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Förster, D., Decker, L., Doppelbauer, M. et al. Analysis of \(\hbox {CO}_2\) reduction potentials and component load collectives of 48 V-hybrids under real-driving conditions. Automot. Engine Technol. 6, 45–62 (2021). https://doi.org/10.1007/s41104-021-00076-3

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