A New Methodology for the Development of Hybrid Powertrains

Authors

Dipl.-Ing. K. Cornelsen, Prof. Dr.-Ing. T. Form, TU Braunschweig; Dipl.-Ing. D. Jänsch, Dipl.-Ing. W. Nietschke, Dr.-Ing. T.-M. Wolter, IAV GmbH, Berlin/Gifhorn

Year

2008

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 672

Summary

Hybrid powertrains are highly complex systems. Their efficacy largely depends on the right design of components and their accurate coordination. In selecting the operating strategy, consideration must be given to the intended type of application and the overall system, consisting of environment, traffic, driver, vehicle and powertrain. Today, powertrain sys-tems are developed off-line in a full-vehicle simulation process that predicts the quantita-tive values of a hybrid concept's handling characteristics with relative accuracy as early as the design phase. Qualitative values and actual driving feel, in contrast, are described in-adequately. To date, it has only been possible to convey them in a later phase of the de-velopment process by constructing drivable prototypes.

This paper presents a project that closes the gap between design and prototype test driv-ing. The project has the aim of developing a simulator that can be driven in actual road traffic. This would provide developers and consumer acceptance investigations with a tool that makes it possible to test, check, compare, assess and present new powertrain system types in the early design and development phase. This would then produce a more accu-rate statement on the anticipated efficacy of the concept in relation to the particular situa-tion in which it is used.

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