Zusammenfassung
In order to reduce traffic-related emissions of both greenhouse gases and pollutants, new powertrain concepts are necessary. Phlegmatised internal combustion engines as part of hybrid powertrains offer a significant potential for efficient, clean and affordable mobility. In this paper, a modular and scalable serial hybrid powertrain concept is presented. Phlegmatisation enables the use of regenerative fuels in innovative combustion processes, such as Prechamber Combustion (PCP) or Reactivity Controlled Compression Ignition (RCCI). Functional requirements regarding vehicle performance are derived from 1D simulation, based on real driving data. Powertrain components are then dimensioned to meet the set requirements. An outlook is given towards an intelligent operating strategy, predicting power requirements on the route ahead. A Dynamic Programming approach to this predictive strategy is shown to offer considerable potential to improve efficiency, driver comfort and battery life. The basic design of the powertrain components and the operating strategy is validated simulatively.
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Notes
- 1.
Typical storage pressures are currently 350 bar for trucks and buses and 700 bar for cars.
- 2.
H2 5.0, signifying a purity \(\ge \) 99.999 %.
- 3.
In a P2 hybrid, the electric motor is located between ICE and gearbox; P4 means that ICE and EM drive two separate axles [6, p. 18].
- 4.
The vehicle was an Opel Insignia B Sports Tourer 1.6 Diesel, which was kindly provided by the Bundeswehr fleet. Physical dimensions as well as a nominal power of 100 kW correspond well to the concept presented in this paper.
- 5.
The 20 kW difference between PICE, max and PEM, cont for 3 min equals a work of 1 kWh, or less than 10 % SoC in the proposed concept. SoC should therefore not fall below this value.
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Acknowledgements
We thank the Bundeswehr Centre for Digitisation and Technology Research (dtec.bw) for funding the Munich Mobility Research Campus MORE. We gratefully acknowledge the provision of licenses for the AVL Simulation Suite by AVL Deutschland GmbH.
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Trapp, C., Böhme, M. (2022). Innovative, modular serial hybrid concept for a highly efficient, clean automotive powertrain. In: Bargende, M., Reuss, HC., Wagner, A. (eds) 22. Internationales Stuttgarter Symposium. Proceedings. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-37009-1_9
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