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E-drive Component Tests Derived from Vehicle Master Test Cases in the SyrNemo Collaborative Research Project

E. Schlemmer, H. Laussegger-Rauch

2016/5/20

Abstract

SyrNemo is a European collaborative research project that deals with the development of a highly integrated air-cooled nextgeneration E-drive (an E-drive consists of E-motor, inverter and controls) based on a Synchronous Reluctance Machine (SYRM). Its salient features are the use of ferrite magnets and a very high efficiency over a large operation range. Ultimately, any new Edrive component has to prove its viability in the vehicle where not only energy efficiency but also functional behaviour is checked. So the goal of the developer is to start the verification of
E-drive components as early as possible. For that reason, relevant load cycles for E-drive testing are derived from vehicle driving cases. Vehicle driving functions are verified by so-called Master
Test Cases that condense all possible driving manoeuvers into standardized sequences. On the E-drive level, these sequences can be boiled down to Test Primitives since many driving
manoeuvers cause similar load patterns for the E-drive components. The most stressful Test Primitives can then be selected from simulations of different driving manoeuvres in vehicle models where the (electrical) load patterns of the components are determined. Because of the ease of simulation, it is relatively straightforward to find out the most demanding scenarios for the E-drive in terms of component ageing, for instance.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 14)
Pages: 166-171 Date of Publication: 2016/5/20
ISSN: 2172-038X Date of Current Version:2016/05/04
REF: 256-16 Issue Date: May 2016
DOI:10.24084/repqj14.256 Publisher: EA4EPQ

Authors and affiliations

E. Schlemmer, H. Laussegger-Rauch
Hybrid and System Design. Engineering and Technology Powertrain Systems. AVL LIST GMBH. Austria

Key words

Electro-mobility, Green Cars Initiative, Synchronous Reluctance Machine, SyrNemo, driving cycle efficiency,
rare earth independence, smart packaging, modular design, component testing.

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