Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Smart battery cell monitoring with contactless data transmission

: Lorentz, V.; Wenger, M.; Giegerich, M.; Zeltner, S.; März, M.; Frey, L.

Postprint urn:nbn:de:0011-n-2639373 (1.9 MByte PDF)
MD5 Fingerprint: 0cd7f86361d2c9ec3a2e722ff1feb4f1
The original publication is available at
Erstellt am: 14.7.2018

Meyer, G. ; European Technology Platform on Smart Systems Integration -EPoSS-:
Advanced microsystems for automotive applications 2012. Smart systems for safe, sustainable and networked vehicles : International Forum on Advanced Microsystems for Automotive Applications (AMAA); 16th AMAA Conference, held on 30 and 31 May 2012 in Berlin
Berlin: Springer, 2012
ISBN: 3-642-29672-6
ISBN: 978-3-642-29672-7 (Print)
ISBN: 978-3-642-29673-4 (Online)
International Forum on Advanced Microsystems for Automotive Applications (AMAA) <16, 2012, Berlin>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IISB ()

The market breakthrough of electric vehicles is mainly delayed by the still too high costs of the battery system. The smart battery cell monitoring presented in this article enables further cost reduction. It consists of battery cells integrating the monitoring electronics together with a data transfer interface for communicating in a bidirectional way with the battery management system. The data transfer interface presented in this paper is based on a differential contactless data transmission bus using galvanically isolated, capacitively coupled links to each single smart battery cell. Since neither galvanic contacts nor connectors are needed, the proposed concept provides simultaneously a very high level of reliability and robustness, and a highly cost-efficient manufacturing process, thus allowing a significant reduction of the final battery pack costs. This paper describes a possible implementation of such a differential contactless data transmission for monitoring and managing battery cells in electric vehicles.