Systematische Leistungswandlerauswahl für Hybridantriebsstrangtopologien

DFX 2016: Proceedings of the 27th Symposium Design for X, 5-6 October 2016, Jesteburg, Germany

Year: 2016
Editor: Dieter Krause, Kristin Paetzold, Sandro Wartzack
Author: Ruoff, Sebastian
Series: DfX
Institution: Karlsruher Institut für Technologie
Section: Design for X
Page(s): 193-205
ISBN: 978-3-946094-09-8

Abstract

For the development of hybrid powertrains the developer has to ensure that the customer requirements will be fulfilled in an early state of the product development process. Therefore, he has to know which parameters he has to regard and how to proceed to fulfill them. In this paper a new approach for the selection of the electrical machine and the combustion engine for the hybrid powertrain will be introduced. This approach is based on the method of the systematic selection of materials in construction processes. The parameters that have to be considered to fulfill the customer requirements regarding the driving performance of the vehicle are the acceleration and the maximum speed of the vehicle. The selection of the electrical machine and the combustion engine out of a database is done separately in acceleration-velocity-diagrams, which are also introduced in this paper. After this separate selection the selected motors can be analysed in a combined acceleration-velocity diagram, to identify the limits of the combined operation of both machines. With this information the developer can execute fuel consumption simulations to compare different hybrid topologies regarding their efficiency in the defined use case.

Keywords: Topology synthesis, Selection of propulsion machines, Hybrid electric vehicle