Downsized Gasoline Engine with 48 V Eco Drive – An Integrated Approach to Improve the Overall Propulsion System Efficiency

Authors

Dr. D. Schöppe, Dipl.-Ing. T. Knorr,
Dipl.-Ing. F. Graf, Dipl.-Ing. B. Klingseis,
Dipl.-Phys. J. Beer, Continental, Regensburg; Prof. Dr.-Ing. P. Gutzmer,
Dipl.-Ing.(FH) Dipl.-Ing.(FH) S. Hager, Schaeffler AG, Herzogenaurach; Dr. A. Schatz, Emitec GmbH, Lohmar

Year

2014

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 777

Summary

Downsized gasoline engines and 48 V electrification are recognized, important efficiency measures to achieve the set CO₂ objectives from 2020. The Continental system architecture selected in the project presented here represents the results of a C-segment vehicle, which fulfills Euro 6c emission requirements as well as fuel efficiency for 2020. A cost-efficient system approach has been selected, which covers optimizations to a gasoline engine, power transmission and a 48 V hybrid system. A holistic approach that goes beyond a simple conglomeration of individual solutions is necessary to achieve a cost-efficient overall system. The gasoline engine can be made far more efficient in combination with the highly dynamic E-machine.

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